Edgar Filing: MFS INVESTMENT GRADE MUNICIPAL TRUST

MFS INVESTMENT GRADE MUNICIPAL TRUST N-CSR

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-05785

MFS INVESTMENT GRADE MUNICIPAL TRUST

(Exact name of registrant as specified in charter)

500 Boylston Street, Boston, Massachusetts 02116

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

500 Boylston Street

Boston, Massachusetts 02116

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: November 30

Date of reporting period: November 30, 2010

ITEM 1.

REPORTS TO STOCKHOLDERS.

LOGO

Annual report

MFS® Investment Grade Municipal Trust

11/30/10

CXH-ANN

MFS® Investment Grade Municipal Trust

New York Stock Exchange Symbol: CXH


LETTER FROM THE CEO			1
PORTFOLIO COMPOSITION			2
MANAGEMENT REVIEW			4
PERFORMANCE SUMMARY			7
INVESTMENT OBJECTIVE, PRINCIPAL INVESTMENT STRATEGIES AND RISKS OF THE FUND			9
PORTFOLIO MANAGERS’ PROFILES			12
DIVIDEND REINVESTMENT AND CASH PURCHASE PLAN			13
PORTFOLIO OF INVESTMENTS			14
STATEMENT OF ASSETS AND LIABILITIES			33
STATEMENT OF OPERATIONS			34
STATEMENTS OF CHANGES IN NET ASSETS			35
FINANCIAL HIGHLIGHTS			36
NOTES TO FINANCIAL STATEMENTS			38
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM			50
RESULTS OF SHAREHOLDER MEETING			51
TRUSTEES AND OFFICERS			52
BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT			57
PROXY VOTING POLICIES AND INFORMATION			62
QUARTERLY PORTFOLIO DISCLOSURE			62
FURTHER INFORMATION			62
FEDERAL TAX INFORMATION			62
MFS® PRIVACY NOTICE			63
CONTACT INFORMATION BACK COVER

NOT FDIC INSURED Ÿ MAY LOSE VALUE Ÿ NO BANK GUARANTEE

LOGO

LETTER FROM THE CEO

Dear Shareholders:

After an extended rebound in the financial markets, uncertainty returned in early 2010 as investors began to question the durability of the recovery for global economies and markets. That uncertainty led to increased risk aversion, especially as investors saw the eurozone struggle with the debt woes of many of its members. In September, the U.S. Federal Reserve Board’s promises to further loosen monetary policy helped assuage market fears and drive asset prices off their recent lows. A combination of solid earnings and improving economic data gave an additional boost to investor sentiment. As we begin 2011, we are cautiously optimistic that economic growth will continue to improve and that the global economies will recover from the shocks of the past few years. We expect the pace of recovery worldwide will be uneven and volatile.

As always, we continue to be mindful of the many challenges faced at the individual, national, and international levels. It is in times such as these that we want to remind investors of the merits of maintaining a long-term view, adhering to basic investing principles such as asset allocation and diversification, and working closely with their advisors to research and identify investment opportunities.

Respectfully,

LOGO

Robert J. Manning

Chairman and Chief Executive Officer

MFS Investment Management®

January 14, 2011

The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed.

PORTFOLIO COMPOSITION

Portfolio structure at market value

LOGO


Top five industries reflecting equivalent exposure of derivative positions (i)
Healthcare Revenue — Hospitals			18.8%
Universities — Colleges			18.4%
State & Local Agencies			12.5%
Utilities — Investor Owned			7.8%
U.S. Treasury Securities (j)			(10.4)%

Portfolio structure reflecting equivalent exposure of derivative positions (i)(j)

LOGO


Composition including fixed income credit quality (a)(i)
AAA			17.7%
AA			22.6%
A			19.0%
BBB			26.5%
BB			4.0%
B			0.7%
CCC			0.2%
CC			0.1%
Other Fixed Income (NR) (j)			2.1%
Cash & Other			7.1%

Portfolio facts (i)
Average Duration (d)			13.9
Average Effective Maturity (m)			17.5 yrs.

(a)

The rating categories include debt securities, inverse floaters, and fixed-income structured products where these have long-term public ratings. All ratings are assigned in accordance with the following hierarchy: If a security is rated by Moody’s, then that rating is used; if not rated by Moody’s, then a Standard & Poor’s rating is used; if not rated by S&P, then a Fitch rating is used. Ratings from Moody’s are shown in the S&P and Fitch scale (e.g., AAA). All ratings are subject to change. Other Fixed Income (NR) includes unrated long-term fixed income securities, interest rate swaps and fixed income futures. Cash & Other includes

Portfolio Composition – continued

cash, other assets less liabilities, offsets to derivative positions, and short-term securities. The fund may not hold all of these instruments.

(d)	Duration is a measure of how much a bond’s price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value due to the interest rate move.

(i)

For purposes of this presentation, the components include the market value of securities, and reflect the impact of the equivalent exposure of derivative positions, if applicable. These amounts may be negative from time to time. The bond component will include any accrued interest amounts. Equivalent exposure is a calculated amount that translates the derivative position into a reasonable approximation of the amount of the underlying asset that the portfolio would have to hold at a given point in time to have the same price sensitivity that results from the portfolio’s ownership of the derivative contract. When dealing with derivatives, equivalent exposure is a more representative measure of the potential impact of a position on portfolio performance than market value. Where the fund holds convertible bonds, these are treated as part of the equity portion of the portfolio.

(j)	For the purpose of managing the fund’s duration, the fund holds short treasury futures with a bond equivalent exposure of (10.4)%, which reduce the fund’s interest exposure but not its credit exposure.

(m)

In determining an instrument’s effective maturity for purposes of calculating the fund’s dollar-weighted average effective maturity, MFS uses the instrument’s stated maturity or, if applicable, an earlier date on which MFS believes it is probable that a maturity-shortening device (such as a put, pre-refunding or prepayment) will cause the instrument to be repaid. Such an earlier date can be substantially shorter than the instrument’s stated maturity.

From time to time “Cash & Other Net Assets” may be negative due to borrowings for leverage transactions, timing of cash receipts, and/or equivalent exposure from any derivative holdings.

Percentages are based on net assets, including the value of auction preferred shares, as of 11/30/10, unless otherwise noted.

The portfolio is actively managed and current holdings may be different.

MANAGEMENT REVIEW

Summary of Results

The MFS Investment Grade Municipal Trust (the “fund”) is a closed-end fund investing primarily in investment-grade municipal debt.

For the twelve months ended November 30, 2010, shares of the fund provided a total return of 7.58%, at net asset value. This compares with a return of 4.76% for the fund’s benchmark, the Barclays Capital Municipal Bond Index.

Market Environment

The first half of the reporting period witnessed a continuation of the financial market and macroeconomic rebounds that had begun in early 2009. These recoveries in global activity and asset valuations were generally synchronized around the world, led importantly by emerging Asian economies, but broadening to include most of the global economy to varying degrees. Primary drivers of the recoveries included an unwinding of the inventory destocking that took place earlier, the production of manufacturing and capital goods, as well as massive fiscal and monetary stimulus.

During the second half of the period, heightened risk surrounding the public-debt profiles of several of the peripheral European countries impaired market sentiment. At the same time, the improving trend in global macroeconomic data began to weaken somewhat. These two dynamics caused many asset prices to retrench significantly, as many questioned the durability of the global recovery.

Towards the end of the period, the U.S. Federal Reserve led markets to believe that further monetary loosening would be forthcoming if macroeconomic activity did not show signs of improvement. The prospects for more easing by the Fed improved market sentiment and drove risk-asset prices markedly higher. However, in a text-book case of “buy the rumor, sell the fact,” the weeks following the early November announcement of further quantitative easing saw a sell-off in U.S. Treasury bonds. This rise in Treasury yields occurred despite risk-off behavior in equities and credit markets (which would normally result in Treasury yield compression), and appears to have been the result of a few factors: signs of improved U.S. economic activity; opposition to quantitative easing from some quarters; and crowded long positions in U.S. Treasuries.

For the vast majority of the twelve months ended November 30, 2010, the municipal market witnessed solid demand with consistent, positive flows into municipal bond funds. Further, with the success of the Build America Bond (BAB) program allowing municipalities to garner a subsidy when issuing debt in the taxable market, tax exempt supply was reduced by about 25%. Together,

Management Review – continued

these forces provided for a robust municipal market notwithstanding the consistent headline news questioning the financial strength of many of these city and states.

However, beginning in November 2010 a confluence of events hit the municipal market over a short period leading to a spike in redemptions from municipal bond funds. These events included increasing concerns from some about higher interest rates, the realization that the Bush tax cuts were in all likelihood going to be extended in some form, and a continuation of headlines questioning the financial strength of municipalities. Additionally, the passage of an extension of the BAB program subsidy became very much in doubt, raising concerns that new issue supply of municipal bonds would increase markedly in 2011. Municipal bond funds were forced to sell to meet the redemptions, driving prices down. The net result was a give back of most of the gains made in the prior eleven months. Subsequent to the end of the period, the tax package officially passed keeping individual tax rates unchanged for the next two years (2011 and 2012) and the BAB program was allowed to expire.

Over these twelve months; however, spreads between high-quality “AAA” rated securities and lower-quality securities, rated “BBB” or lower, tightened during the time period. As such, securities rated “BBB” and lower significantly outperformed higher-quality “AA” and “AAA” rated securities.

Contributors to Performance

Key factors for the fund’s positive excess return over the Barclays Capital Municipal Bond Index included our lesser exposure to “AA” rated (r) bonds and our greater exposure to “BBB” rated bonds, as lower quality bonds delivered stronger returns over the reporting period.

The fund’s overweight position in the health care sector also boosted relative results. The fund’s security selection in the education sector and holdings of credit enhanced bonds were other positive drivers of relative performance.

The fund employs leverage which has been created through the issuance of auction preferred shares and inverse floaters. To the extent that investments are purchased through the use of leverage, the fund’s net asset value will increase or decrease at a greater rate than a comparable unleveraged fund. During the reporting period, the fund’s leverage enhanced its absolute positive performance.

Management Review – continued

Detractors from Performance

The fund’s short positions in U.S. Treasury futures, which were used to hedge the duration (d) of the municipal securities held by the fund, detracted from relative performance. The benchmark does not hold U.S. Treasury futures.

Bond selection in “AAA” rated securities was another area of weakness that hampered relative performance over the reporting period.

Respectfully,


Michael Dawson		Geoffrey Schechter
Portfolio Manager		Portfolio Manager

(d)	Duration is a measure of how much a bond’s price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value.

(r)

Bonds rated “BBB”, “Baa”, or higher are considered investment grade; bonds rated “BB”, “Ba”, or below are considered non-investment grade. The primary source for bond quality ratings is Moody’s Investors Service. If not available, ratings by Standard & Poor’s are used, else ratings by Fitch, Inc. For securities which are not rated by any of the three agencies, the security is considered Not Rated.

The views expressed in this report are those of the portfolio managers only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market or other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio’s current or future investments.

PERFORMANCE SUMMARY THROUGH 11/30/10

The following chart represents the fund’s historical performance in comparison to its benchmark(s). Investment return and principal value will fluctuate, and shares, when sold, may be worth more or less than their original cost; current performance may be lower or higher than quoted. The performance shown does not reflect the deduction of taxes, if any, that a shareholder would pay on fund distributions or the sale of fund shares. Performance data shown represents past performance and is no guarantee of future results.

Price Summary for MFS Investment Grade Municipal Trust

Year Ended 11/30/10


	Date			Price
Net Asset Value		11/30/10		$9.40
		11/30/09		$9.35
New York Stock Exchange Price		11/30/10		$9.21
		9/09/10	(high) (t)	$10.25
		11/15/10	(low) (t)	$8.67
		11/30/09		$9.08

Total Returns vs Benchmark

Year Ended 11/30/10



		MFS Investment Grade Municipal Trust at
		New York Stock Exchange Price (r)			8.54%
		Net Asset Value (r)			7.58%
		Barclays Capital Municipal Bond Index (f)			4.76%

(f)	Source: FactSet Research Systems Inc.

(r)	Includes reinvestment of dividends and capital gain distributions.

(t)	For the period December 1, 2009 through November 30, 2010.

Benchmark Definition

Barclays Capital Municipal Bond Index – a market capitalization-weighted index that measures the performance of the tax-exempt bond market.

It is not possible to invest directly in an index.

Notes to Performance Summary

The fund’s shares may trade at a discount or premium to net asset value. Shareholders do not have the right to cause the fund to repurchase their shares

Performance Summary – continued

at net asset value. When fund shares trade at a premium, buyers pay more than the net asset value underlying fund shares, and shares purchased at a premium would receive less than the amount paid for them in the event of the fund’s liquidation. As a result, the total return that is calculated based on the net asset value and New York Stock Exchange price can be different.

From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.

INVESTMENT OBJECTIVE, PRINCIPAL

INVESTMENT STRATEGIES AND RISKS

OF THE FUND

Investment Objective

The fund’s investment objective is to seek high current income exempt from federal income tax, but may also consider capital appreciation. The fund’s objective may be changed without shareholder approval.

Principal Investment Strategies

The fund invests, under normal market conditions, at least 80% of its net assets, including assets attributable to preferred shares and borrowings for investment purposes, in tax-exempt bonds and tax-exempt notes. This policy may not be changed without shareholder approval. Tax-exempt bonds and tax-exempt notes are municipal instruments, the interest of which is exempt from federal income tax. Interest from the fund’s investments may be subject to the federal alternative minimum tax. MFS may also invest in taxable investments.

MFS (Massachusetts Financial Services Company, the fund’s investment adviser) normally invests at least 80% of the fund’s net assets, including assets attributable to preferred shares and borrowings for investment purposes, in investment grade debt instruments. Investment grade debt instruments are those that are rated at the time of purchase in one of the top four rating categories by Moody’s; or if not rated by Moody’s, by S&P; or if not rated by Moody’s or S&P, by Fitch. If a debt instrument is unrated, MFS may assign a rating which it considers to be equivalent to that of a major credit rating.

MFS may also invest in lower quality debt instruments.

MFS may invest 25% or more of the fund’s total assets in municipal instruments that finance similar projects, such as those relating to education, healthcare, housing, utilities, water, or sewers.

MFS may invest a relatively large percentage of the fund’s assets in the instruments of a single issuer or a small number of issuers.

MFS may use derivatives for any investment purpose, including to earn income and enhance returns, to increase or decrease exposure to a particular market, to manage or adjust the risk profile of the fund, or as alternatives to direct investments.

MFS uses a bottom-up investment approach to buying and selling investments for the Fund. Investments are selected primarily based on fundamental analysis of individual instruments and their issuers in light of issuers’ current financial condition and current market, economic, political, and regulatory conditions. Factors considered may include the instrument’s credit quality,

Investment Objective, Principal Investment Strategies and Risks of the Fund – continued

collateral characteristics, and indenture provisions, and the issuer’s management ability, capital structure, leverage, and ability to meet its current obligations. Quantitative models that systematically evaluate the structure of the debt instrument and its features may also be considered.

The fund uses leverage through the issuance of preferred shares and/or the creation of tender option bonds, and then investing the proceeds pursuant to its investment strategies. If approved by the fund’s Board of Trustees, the fund may use leverage by other methods.

MFS may engage in active and frequent trading in pursuing the fund’s principal investment strategies.

In response to market, economic, political, or other conditions, MFS may depart from the fund’s principal investment strategies by temporarily investing for defensive purposes.

Principal Risks

The fund may not achieve its objective and/or you could lose money on your investment in the fund. Investments in debt instruments may decline in value as the result of increases in interest rates, declines in the credit quality of the issuer, borrower, counterparty or underlying collateral, or changes in economic, political, issuer-specific, or other conditions. Certain types of debt instruments can be more sensitive to these factors and therefore more volatile. Investments in derivatives can be used to take both long and short positions, be highly volatile, result in leverage (which can magnify losses), and involve risks in addition to the risks of the underlying indicator(s) on which the derivative is based, such as counterparty and liquidity risk. Investments in lower-quality debt instruments can be more volatile and have greater risk of default than higher-quality debt instruments. Investments in municipal instruments can be volatile and significantly affected by adverse tax or court rulings, legislative or political changes, market and economic conditions, issuer, industry-specific (including the credit quality of municipal insurers), and other conditions. The market price of common shares of the fund will be based on factors such as the supply and demand for common shares in the market and general market, economic, political or regulatory conditions. Whether shareholders will realize gains or losses upon the sale of common shares of the fund will depend on the market price of common shares at the time of the sale, not on the fund’s net asset value. The market price may be lower or higher than the fund’s net asset value. Shares of closed-end funds frequently trade at a discount or premium to their net asset value. Leverage involves investment exposure in an amount exceeding the initial investment. Leverage can cause increased volatility by magnifying gains or losses. To the extent that investments are purchased with the issuance of preferred shares, the fund’s net asset value will increase or decrease at a greater rate than a

Investment Objective, Principal Investment Strategies and Risks of the Fund – continued

comparable unleveraged fund. Please see the fund’s registration statement for further information regarding these and other risk considerations. A copy of the fund’s registration statement on Form N-2 is available on the EDGAR database on the Securities and Exchange Commission’s Internet Web site at http://sec.gov.

In accordance with Section 23(c) of the Investment Company Act of 1940, the fund hereby gives notice that it may from time to time repurchase common and/or preferred shares of the fund in the open market at the option of the Board of Trustees and on such terms as the Trustees shall determine.

PORTFOLIO MANAGERS’ PROFILES


Michael Dawson	—	Investment Officer of MFS; employed in the investment area of MFS since 1998. Portfolio Manager of the fund since June 2007.

Geoffrey Schechter	—	Investment Officer of MFS; employed in the investment area of MFS since 1993. Portfolio Manager of the fund since June 2007.

DIVIDEND REINVESTMENT AND

CASH PURCHASE PLAN

The fund offers a Dividend Reinvestment and Cash Purchase Plan (the “Plan”) that allows common shareholders to reinvest either all of the distributions paid by the fund or only the long-term capital gains. Generally, purchases are made at the market price unless that price exceeds the net asset value (the shares are trading at a premium). If the shares are trading at a premium, purchases will be made at a price of either the net asset value or 95% of the market price, whichever is greater. You can also buy shares on a quarterly basis in any amount $100 and over. The Plan Agent will purchase shares under the Cash Purchase Plan on the 15th of January, April, July, and October or shortly thereafter.

If shares are registered in your own name, new shareholders will automatically participate in the Plan, unless you have indicated that you do not wish to participate. If your shares are in the name of a brokerage firm, bank, or other nominee, you can ask the firm or nominee to participate in the Plan on your behalf. If the nominee does not offer the Plan, you may wish to request that your shares be re-registered in your own name so that you can participate. There is no service charge to reinvest distributions, nor are there brokerage charges for shares issued directly by the fund. However, when shares are bought on the New York Stock Exchange or otherwise on the open market, each participant pays a pro rata share of the transaction expenses, including commissions. Dividends and capital gains distributions are taxable whether received in cash or reinvested in additional shares – the automatic reinvestment of distributions does not relieve you of any income tax that may be payable (or required to be withheld) on the distributions.

You may withdraw from the Plan at any time by going to the Plan Agent’s website at www.computershare.com, by calling 1-800-637-2304 any business day from 9 a.m. to 5 p.m. Eastern time or by writing to the Plan Agent at P.O. Box 43078, Providence, RI 02940-3078. Please have available the name of the fund and your account number. For certain types of registrations, such as corporate accounts, instructions must be submitted in writing. Please call for additional details. When you withdraw from the Plan, you can receive the value of the reinvested shares in one of three ways: your full shares will be held in your account, the Plan Agent will sell your shares and send the proceeds to you, or you may transfer your full shares to your investment professional who can hold or sell them. Additionally, the Plan Agent will sell your fractional shares and send the proceeds to you.

If you have any questions or for further information or a copy of the Plan, contact the Plan Agent Computershare Trust Company, N.A. (the Transfer Agent for the fund) at 1-800-637-2304, at the Plan Agent’s website at www.computershare.com, or by writing to the Plan Agent at P.O. Box 43078, Providence, RI 02940-3078.

PORTFOLIO OF INVESTMENTS

11/30/10

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.


Municipal Bonds - 147.2%
Issuer	Shares/Par		Value ($)

Airport & Port Revenue - 0.1%
Maryland Economic Development Corp. Rev. (Port America Chesapeake Terminal Project), “B”, 5.75%, 2035	$	150,000	$	150,304

General Obligations - General Purpose - 3.6%
Chicago, IL (Emergency Telecommunications Systems), FGIC, 5.5%, 2023	$	1,000,000	$	1,120,110
Chicago, IL, “A”, AMBAC, 6.25%, 2014		1,480,000		1,672,504
Highlands Ranch, CO, Metropolitan District, AGM, 6.5%, 2011		650,000		671,028
Luzerne County, PA, AGM, 6.75%, 2023		370,000		410,463
State of California, 5.75%, 2019		70,000		70,641

			$	3,944,746
General Obligations - Schools - 6.7%
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 2031	$	130,000	$	37,339
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 2032		235,000		62,613
Beverly Hills, CA, Unified School District (Election of 2008), Capital Appreciation, 0%, 2033		470,000		116,269
Frenship, TX, Independent School District, AGM, 5%, 2033		1,000,000		1,019,680
Los Angeles, CA, Unified School District, “D”, 5%, 2034		95,000		94,098
Modesto, CA, High School District (Stanislaus County), Capital Appreciation, “A”, FGIC, 0%, 2019		1,350,000		921,335
Pomona, CA, Unified School District, “A”, NATL, 6.45%, 2022		1,000,000		1,144,300
San Lorenzo, CA, Unified School District, Alameda County, Election 2004, “B”, FGIC, 4.75%, 2037		640,000		620,198
St. Johns, MI, Public Schools, FGIC, 5.1%, 2025		1,000,000		1,160,310
West Contra Costa, CA, Unified School District, “B”, NATL, 6%, 2024		250,000		269,335
Will County, IL, School District (Channahon), AMBAC, 8.5%, 2015		1,400,000		1,783,782

			$	7,229,259
Healthcare Revenue - Hospitals - 26.9%
Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), “A”, 5.375%, 2040	$	405,000	$	283,743
Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev. (Baptist Health Systems, Inc.), “A”, 5%, 2030		485,000		420,374
Brunswick, GA, Hospital Authority Rev. (Glynn-Brunswick Memorial Hospital), 5.625%, 2034		165,000		168,953

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Hospitals - continued
California Health Facilities Financing Authority Rev. (Catholic Healthcare West), “I”, 4.95%, 2026 (b)	$	200,000	$	215,104
California Health Facilities Financing Authority Rev. (St. Joseph Health System), “A”, 5.75%, 2039		195,000		201,248
California Municipal Finance Authority Rev. (Eisenhower Medical Center), “A”, 5.75%, 2040		30,000		28,687
California Statewide Communities Development Authority Rev. (Children’s Hospital), 5%, 2047		575,000		451,001
California Statewide Communities Development Authority Rev. (Enloe Medical Center), CHCLI, 5.75%, 2038		360,000		356,519
California Statewide Communities Development Authority Rev. (St. Joseph Health System), FGIC, 5.75%, 2047		255,000		256,150
Cullman County, AL, Health Care Authority (Cullman Regional Medical Center), “A”, 6.75%, 2029		355,000		356,945
District of Columbia Hospital Rev. (Children’s Hospital Obligated Group), AGM, 5.25%, 2045		265,000		256,369
Gage County, NE, Hospital Authority No. 1, Health Care Facilities Rev. (Beatrice Community Hospital & Health Care Center), “B”, 6%, 2025		55,000		55,197
Gage County, NE, Hospital Authority No. 1, Health Care Facilities Rev. (Beatrice Community Hospital & Health Care Center), “B”, 6.5%, 2030		175,000		174,998
Gage County, NE, Hospital Authority No. 1, Health Care Facilities Rev. (Beatrice Community Hospital & Health Care Center), “B”, 6.75%, 2035		150,000		151,043
Harris County, TX, Health Facilities Development Corp., Hospital Rev. (Memorial Hermann Healthcare Systems), “B”, 7%, 2027		205,000		227,753
Harris County, TX, Health Facilities Development Corp., Hospital Rev. (Memorial Hermann Healthcare Systems), “B”, 7.25%, 2035		250,000		279,363
Health Care Authority for Baptist Health, AL, “D”, 5%, 2021		850,000		819,757
Idaho Health Facilities Authority Rev. (St. Luke’s Regional Medical Center), 5%, 2035		85,000		85,125
Illinois Finance Authority Rev. (Children’s Memorial Hospital), “A”, ASSD GTY, 5.25%, 2047		540,000		523,724
Illinois Finance Authority Rev. (KishHealth Systems Obligated Group), 5.75%, 2028		380,000		386,426
Illinois Finance Authority Rev. (Provena Health), “A”, 7.75%, 2034		400,000		452,652
Illinois Finance Authority Rev. (Resurrection Health), 6.125%, 2025		460,000		470,474
Illinois Finance Authority Rev. (Silver Cross Hospital & Medical Centers), 6.875%, 2038		395,000		426,726
Indiana Health & Educational Facilities Finance Authority, Hospital Rev. (Clarian Health), “A”, 5%, 2039		390,000		360,617
Indiana Health & Educational Facilities Finance Authority, Hospital Rev. (Community Foundation of Northwest Indiana), 5.5%, 2037		705,000		643,059

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Hospitals - continued
Indiana Health & Educational Financing Authority Rev. (Community Foundation of Northwest Indiana ), “A”, 6%, 2034	$	150,000	$	152,339
Johnson City, TN, Health & Educational Facilities Board Hospital Rev. (Mountain States Health Alliance), “A”, 5.5%, 2036		845,000		775,626
Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Baptist Healthcare System), “A”, 5.375%, 2024		255,000		272,794
Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Baptist Healthcare System), “A”, 5.625%, 2027		85,000		90,368
Kentucky Economic Development Finance Authority, Hospital Facilities Rev. (Owensboro Medical Health System), “A”, 6.375%, 2040		440,000		440,154
Lake County, OH, Hospital Facilities Rev. (Lake Hospital), “C”, 6%, 2043		265,000		263,474
Louisiana Public Facilities Authority Hospital Rev. (Lake Charles Memorial Hospital), 6.375%, 2034		415,000		374,849
Louisville & Jefferson County, KY, Metropolitan Government Healthcare Systems Rev. (Norton Healthcare, Inc.), 5.25%, 2036		385,000		355,952
Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2032		45,000		40,766
Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2037		45,000		40,038
Maryland Health & Higher Educational Facilities Authority Rev. (Anne Arundel Health System), “A”, 6.75%, 2039		175,000		196,921
Maryland Health & Higher Educational Facilities Authority Rev. (Mercy Medical Center), “A”, 5.5%, 2042		265,000		245,263
Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 6%, 2043		95,000		95,484
Massachusetts Health & Educational Facilities Authority Rev. (Boston Medical Center), 5.25%, 2038		110,000		99,485
Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Regional), “C”, 5.75%, 2013		270,000		270,235
Massachusetts Health & Educational Facilities Authority Rev. (Quincy Medical Center), “A”, 6.5%, 2038		165,000		143,081
Massachusetts Health & Educational Facilities Authority Rev. (South Shore Hospital), “F”, 5.75%, 2029		370,000		367,895
New Hampshire Business Finance Authority Rev. (Elliot Hospital Obligated Group), “A”, 6%, 2027		445,000		451,653
New Hampshire Health & Education Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2012 (c)		440,000		481,298
New Hampshire Health & Education Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2032		60,000		60,197
New Hampshire Health & Education Facilities Authority Rev. (Memorial Hospital at Conway), 5.25%, 2036		300,000		250,677

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Hospitals - continued
New Jersey Health Care Facilities, Financing Authority Rev. (Robert Wood Johnson University Hospital), 5%, 2031	$	70,000	$	68,762
New Jersey Health Care Facilities, Financing Authority Rev. (St. Peter’s University Hospital), 5.75%, 2037		415,000		401,811
New York Dormitory Authority Rev. (North Shore Long Island Jewish Group), 5.5%, 2013 (c)		100,000		111,558
New York Dormitory Authority Rev., Non-State Supported Debt (Bronx-Lebanon Hospital Center), LOC, 6.5%, 2030		165,000		181,119
New York Dormitory Authority Rev., Non-State Supported Debt (Bronx-Lebanon Hospital Center), LOC, 6.25%, 2035		100,000		108,106
Northampton County, PA, General Purpose Authority Hospital Rev. (St. Luke’s Hospital), “A”, 5.5%, 2035		100,000		98,006
Northampton County, PA, General Purpose Authority Hospital Rev. (St. Luke’s Hospital), “A”, 5.5%, 2040		115,000		111,555
Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), 5.75%, 2012 (c)		150,000		164,978
Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “C”, ETM, NATL, 6.25%, 2013 (c)		1,740,000		1,989,847
Palomar Pomerado Health Care District, CA, COP, 6.75%, 2039		340,000		349,588
Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Health System), “A”, 6.625%, 2023		335,000		335,107
Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Health System), “A”, 5.5%, 2030		395,000		363,874
Rhode Island Health & Educational Building Corp. Rev., Hospital Financing (Lifespan Obligated Group), “A”, ASSD GTY, 7%, 2039		855,000		949,255
Rhode Island Health & Educational Building Corp., Hospital Financing (Lifespan Obligated Group), 6.375%, 2012 (c)		435,000		466,812
Richmond, IN, Hospital Authority Rev. (Reid Hospital & Health Center Services), “A”, 6.625%, 2039		525,000		558,500
Royal Oak, MI, Hospital Finance Authority Rev. (William Beaumont Hospital), 8.25%, 2039		230,000		269,263
Scioto County, OH, Hospital Facilities Rev. (Southern Ohio Medical Center), 5.75%, 2038		555,000		562,121
Scottsdale, AZ, Industrial Development Authority, Hospital Rev. (Scottsdale Healthcare), “C”, ASSD GTY, 5%, 2035		140,000		137,455
Skagit County, WA, Public Hospital District No. 001 Rev. (Skagit Valley Hospital), 5.75%, 2032		535,000		507,533
South Carolina Jobs & Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2012 (c)		110,000		119,961
South Carolina Jobs & Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2023		390,000		394,434

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Hospitals - continued
South Lake County, FL, Hospital District Rev. (South Lake Hospital), “A”, 6%, 2029	$	105,000	$	106,778
South Lake County, FL, Hospital District Rev. (South Lake Hospital), “A”, 6.25%, 2039		155,000		157,596
Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.375%, 2015		325,000		326,810
Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.125%, 2036		1,000,000		834,670
St. Paul, MN, Housing & Redevelopment Authority Healthcare Facilities Rev. (Healthpartners Obligated Group), 5.25%, 2023		325,000		323,521
St. Paul, MN, Housing & Redevelopment Authority Healthcare Facilities Rev. (Healthpartners Obligated Group), 5.25%, 2036		615,000		558,149
Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2026		1,365,000		1,276,016
Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2036		135,000		117,505
Sumner County, TN, Health, Educational & Housing Facilities Board Rev. (Sumner Regional Health Systems, Inc.), “A”, 5.5%, 2046 (a)		1,000,000		55,000
Tarrant County, TX, Cultural Education Facilities Finance Corp. (Scott & White Memorial Hospital), “A”, 5.5%, 2031		85,000		84,680
Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.25%, 2032		265,000		238,842
Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.375%, 2037		220,000		198,495
Washington Health Care Facilities Authority Rev. (Highline Medical Center), FHA, 6.25%, 2036		700,000		752,304
Washington Health Care Facilities Authority Rev. (Virginia Mason Medical Center), “A”, 6.25%, 2042		570,000		579,587
West Virginia Hospital Finance Authority, Hospital Rev. (Thomas Health System), 6.5%, 2038		285,000		268,935
Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), 6.4%, 2033		175,000		178,631
Wisconsin Health & Educational Facilities Authority Rev. (Fort Healthcare, Inc. Project), 5.375%, 2018		385,000		393,693
Wisconsin Health & Educational Facilities Authority Rev. (ProHealth Care, Inc. Obligated Group), 6.625%, 2032		195,000		201,741
Wisconsin Health & Educational Facilities Authority Rev. (ProHealth Care, Inc. Obligated Group), 6.625%, 2039		100,000		106,994
Wisconsin Health & Educational Facilities Authority Rev. (Wheaton Franciscan Services), 5.25%, 2034		695,000		620,607

			$	29,150,755

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Long Term Care - 8.1%
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Casa de las Campanas), 6%, 2037	$	70,000	$	69,715
Abilene, TX, Health Facilities Development Corp., Retirement Facilities Rev. (Sears Methodist Retirement Systems, Inc.), “A”, 7%, 2033		500,000		434,680
Bucks County, PA, Industrial Development Authority Retirement Community Rev. (Ann’s Choice, Inc.), “A”, 6.125%, 2025		500,000		483,735
Capital Projects Finance Authority, FL (Glenridge on Palmer Ranch), “A”, 8%, 2012 (c)		500,000		562,800
Chartiers Valley, PA, Industrial & Commercial Development Authority Rev. (Friendship Village South), “A”, 5.25%, 2013		500,000		519,710
Chester County, PA, Industrial Development Authority Rev. (RHA Nursing Home), 8.5%, 2032		705,000		630,312
Cumberland County, PA, Municipal Authority Rev. (Diakon Lutheran Social Ministries), 6.125%, 2029		570,000		587,334
Fulton County, GA, Residential Care Facilities, Elderly Authority Rev. (Canterbury Court), “A”, 6.125%, 2034		250,000		220,130
Hamden, CT, Facility Rev. (Whitney Center Project), “A”, 7.625%, 2030		35,000		36,681
Hamden, CT, Facility Rev. (Whitney Center Project), “A”, 7.75%, 2043		205,000		212,940
Hawaii Department of Budget & Finance, Special Purpose Rev. (15 Craigside Project), “A”, 9%, 2044		115,000		131,168
Illinois Finance Authority Rev. (Hoosier Care, Inc.), “A”, 7.125%, 2034		415,000		374,376
Illinois Finance Authority Rev. (Smith Village), “A”, 6.25%, 2035		500,000		428,920
Illinois Health Facilities Authority Rev. (Lutheran Senior Ministries, Inc.), 7.375%, 2011 (c)		250,000		264,283
Illinois Health Facilities Authority Rev. (Smith Crossing), “A”, 7%, 2032		250,000		225,745
La Verne, CA, COP (Brethren Hillcrest Homes), “B”, 6.625%, 2025		350,000		344,743
Massachusetts Development Finance Agency Rev. (Loomis Communities, Inc.), “A”, 5.625%, 2015		150,000		148,110
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.125%, 2028		200,000		178,084
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.25%, 2035		300,000		258,402
New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.75%, 2025		310,000		287,401
New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.875%, 2037		100,000		84,397
Savannah, GA, Economic Development Authority, First Mortgage (Marshes of Skidway), “A”, 7.4%, 2024		250,000		247,568
Shelby County, TN, Health, Educational & Housing Facilities Board Rev. (Germantown Village), “A”, 7.25%, 2034		150,000		143,768

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Healthcare Revenue - Long Term Care - continued
South Carolina Jobs & Economic Development Authority, Health Facilities Rev. (Wesley Commons), 5.3%, 2036	$	250,000	$	192,230
St. John’s County, FL, Industrial Development Authority Rev. (Presbyterian Retirement), “A”, 6%, 2045		400,000		398,224
Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Gurwin Jewish Phase II), 6.7%, 2039		490,000		479,612
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Air Force Village), 6.125%, 2029		40,000		39,491
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Air Force Village), 6.375%, 2044		315,000		306,678
Tarrant County, TX, Cultural Education Facilities Finance Corp. Retirement Facility (Stayton at Museum Way), 8.25%, 2044		500,000		500,900

			$	8,792,137
Healthcare Revenue - Other - 0.3%
Massachusetts Health & Educational Facilities Authority Rev. (Civic Investments, Inc.), “A”, 9%, 2012 (c)	$	250,000	$	281,700

Human Services – 0.2%
Massachusetts Development Finance Agency Rev. (Evergreen Center, Inc.), 5%, 2024	$	250,000	$	230,323

Industrial Revenue - Airlines - 0.4%
Clayton County, GA, Development Authority Special Facilities Rev. (Delta Airlines, Inc.), “A”, 8.75%, 2029	$	125,000	$	143,643
Clayton County, GA, Development Authority Special Facilities Rev. (Delta Airlines, Inc.), “B”, 9%, 2035		95,000		103,016
New Jersey Economic Development Authority, Special Facilities Rev. (Continental Airlines, Inc.), 6.25%, 2029		105,000		98,490
New York, NY, City Industrial Development Agencies Rev. (American Airlines, Inc.), 7.5%, 2016		115,000		119,315

			$	464,464
Industrial Revenue - Chemicals - 1.1%
Brazos River, TX, Harbor Navigation District (Dow Chemical Co.), “B-2”, 4.95%, 2033	$	590,000	$	555,680
Michigan Strategic Fund Ltd. Obligation Rev. (Dow Chemical Co.), 6.25%, 2014		525,000		580,655

			$	1,136,335
Industrial Revenue - Environmental Services - 1.3%
California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Republic Services, Inc.), “B”, 5.25%, 2023 (b)	$	135,000	$	139,382

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Industrial Revenue - Environmental Services - continued
California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), “A”, 5%, 2022	$	305,000	$	309,709
California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), “C”, 5.125%, 2023		335,000		338,186
Mission, TX, Economic Development Corp., Solid Waste Disposal Rev. (Allied Waste N.A., Inc.), “A”, 5.2%, 2018		650,000		657,267

			$	1,444,544
Industrial Revenue - Other - 2.5%
California Statewide Communities, Development Authority Facilities (Microgy Holdings Project), 9%, 2038 (d)	$	26,773	$	2,142
Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 2028		250,000		250,203
Houston, TX, Industrial Development Corp. (United Parcel Service, Inc.), 6%, 2023		315,000		302,573
Indianapolis, IN, Airport Authority Rev., Special Facilities (FedEx Corp.), 5.1%, 2017		250,000		257,660
Michigan Strategic Fund Ltd. Obligation Rev. (Michigan Sugar Co., Carrollton), 6.55%, 2025		250,000		211,245
New Jersey Economic Development Authority Rev. (GMT Realty LLC), “B”, 6.875%, 2037		500,000		440,210
Pennsylvania Economic Development Financing Authority, Finance Authority Facilities Rev. (Amtrak), “A”, 6.25%, 2031		180,000		181,967
Toledo Lucas County, OH, Authority Port Rev., Facilities (CSX, Inc. Project), 6.45%, 2021		1,000,000		1,114,610

			$	2,760,610
Industrial Revenue - Paper - 1.1%
Camden, AL, Industrial Development Board Exempt Facilities Rev., “B” (Weyerhaeuser Co.), 6.375%, 2013 (c)	$	275,000	$	314,460
Escambia County, FL, Environmental Improvement Rev. (International Paper Co.), “A”, 5.75%, 2027		250,000		246,008
Rockdale County, GA, Development Authority Project Rev. (Visy Paper Project), “A”, 6.125%, 2034		320,000		302,096
Sabine River Authority Rev., Louisiana Water Facilities (International Paper Co.), 6.2%, 2025		310,000		313,624

			$	1,176,188
Miscellaneous Revenue - Entertainment & Tourism - 1.0%
Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6%, 2030	$	200,000	$	204,026
Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6.25%, 2040		130,000		132,590

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Miscellaneous Revenue - Entertainment & Tourism - continued
Brooklyn, NY, Arena Local Development Corp. (Barclays Center Project), 6.375%, 2043	$	90,000	$	92,056
Cow Creek Band of Umpqua Tribe of Indians, OR, “C”, 5.625%, 2026 (n)		350,000		280,620
New York Liberty Development Corp. Rev. (National Sports Museum), “A”, 6.125%, 2019 (d)		220,000		660
New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.125%, 2029		65,000		71,118
New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.375%, 2039		45,000		48,634
New York, NY, City Industrial Development Agency Rev. (Queens Baseball Stadium), ASSD GTY, 6.5%, 2046		195,000		212,341

			$	1,042,045
Miscellaneous Revenue - Other - 2.8%
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2017	$	95,000	$	93,735
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2019		190,000		182,145
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2020		155,000		144,784
Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, SYNCORA, 5.25%, 2024		90,000		81,214
Dallas, TX, Civic Center Convention Complex Rev., ASSD GTY, 5.25%, 2034		465,000		468,841
New Orleans, LA, Aviation Board Gulf Opportunity Zone CFC Rev. (Consolidated Rental Car), “A”, 6.25%, 2030		185,000		190,900
New York Liberty Development Corp., Liberty Rev. (One Bryant Park LLC), 6.375%, 2049		770,000		795,441
Oklahoma Industries Authority Rev. (Oklahoma Medical Research Foundation Project), 5.5%, 2029		600,000		616,038
Summit County, OH, Port Authority Building Rev. (Seville Project), “A”, 5.1%, 2025		415,000		352,069
V Lakes Utility District, MS, Water Systems Rev., 7%, 2037		85,000		76,537

			$	3,001,704
Multi-Family Housing Revenue - 4.3%
Broward County, FL, Housing Finance Authority Rev. (Chaves Lakes Apartments Ltd.), “A”, 7.5%, 2040	$	500,000	$	479,710
Capital Trust Agency, FL, Housing Rev. (Atlantic Housing Foundation), “B”, 7%, 2032 (q)		355,000		175,643
Charter Mac Equity Issuer Trust, FHLMC, 6.3%, 2019 (n)		500,000		523,925
Charter Mac Equity Issuer Trust, “B”, FHLMC, 7.6%, 2050 (b)(n)		500,000		500,000

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Multi-Family Housing Revenue - continued
Clay County, FL, Housing Finance Authority Rev. (Madison Commons Apartments), “A”, 7.45%, 2040	$	233,940	$	218,418
District of Columbia Housing Finance Agency (Henson Ridge), “E”, FHA, 5.1%, 2037		500,000		478,310
Durham, NC, Durham Housing Authority Rev. (Magnolia Pointe Apartments), 5.65%, 2038 (b)		369,610		276,782
Minneapolis, MN, Student Housing Rev. (Riverton Community Housing Project), “A”, 5.7%, 2040		250,000		192,648
MuniMae TE Bond Subsidiary LLC, 5.5%, 2049 (b)(z)		1,000,000		659,430
Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016 (z)		227,741		216,754
Tacoma, WA, Housing Authority Multi-Family Rev. (Redwood/Juniper, Pine Tree Harbor, & Conifer South), GNMA, 5.05%, 2037		1,040,000		981,552

			$	4,703,172
Sales & Excise Tax Revenue - 2.1%
Bolingbrook, IL, Sales Tax Rev., 6.25%, 2024	$	250,000	$	156,238
Massachusetts Bay Transportation Authority, Sales Tax Rev., “A-1”, 5.25%, 2029		350,000		391,276
Regional Transportation District, CO, Private Activity Rev. (Denver Transportation Partners), 6%, 2034		480,000		485,554
Regional Transportation District, CO, Private Activity Rev. (Denver Transportation Partners), 6%, 2041		245,000		244,980
Tampa Bay, FL, Sports Authority Rev. (Sales Tax-Tampa Bay Arena), NATL, 5.75%, 2025		1,000,000		1,025,890

			$	2,303,938
Single Family Housing - Local - 0.8%
Minneapolis & St. Paul Housing Authority Rev. (City Living), “A-2”, GNMA, 5%, 2038	$	366,862	$	350,383
Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 2028		500,000		496,480

			$	846,863
Single Family Housing - State - 2.5%
California Housing Finance Agency Rev., “G”, 5.5%, 2042	$	350,000	$	345,986
Colorado Housing & Finance Authority, “A”, 5.5%, 2029		915,000		958,124
Colorado Housing & Finance Authority, “B-2”, 7.25%, 2031		30,000		30,707
Maine Housing Authority Mortgage, “A-2”, 4.95%, 2027		445,000		438,467
Montana Board Housing (Single Family Mortgage), “A”, 5%, 2036		705,000		669,940
North Dakota Housing Finance Agency Rev., “A”, 4.85%, 2021		280,000		282,120

			$	2,725,344

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Solid Waste Revenue - 1.8%
Delaware County, PA, Industrial Development Authority Rev. (American Ref-Fuel), “A”, 6.1%, 2013	$	675,000	$	677,140
Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), “A”, 5.45%, 2012		1,250,000		1,253,338
Pennsylvania Economic Development Financing Authority, Sewer Sludge Disposal Rev. (Philadelphia Biosolids Facility), 6.25%, 2032		55,000		57,874

			$	1,988,352
State & Agency - Other - 0.2%
Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.25%, 2024	$	100,000	$	99,715
Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.5%, 2037		100,000		96,429

			$	196,144
State & Local Agencies - 17.7%
Berkeley County, SC, School District Installment Lease (Securing Assets for Education), 5%, 2028	$	500,000	$	507,210
Dorchester County, SC, School District No. 2, Growth Remedy Opportunity Tax Hike, 5.25%, 2029		250,000		261,430
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “A”, 5%, 2045		420,000		365,324
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “B”, 5.5%, 2013 (c)		500,000		553,595
Guam Government Department of Education (John F. Kennedy High School), “A”, COP, 6.875%, 2040		65,000		65,396
Indiana Office Building Commission Correction Facilities Program Rev. (Women’s Prison), “B”, AMBAC, 6.25%, 2016		2,820,000		3,198,811
Lancaster, SC, Educational Assistance Program, Inc., School District Lancaster County Project, 5%, 2026		550,000		557,541
Laurens County, SC, School District No. 55, Installment Purchase Rev., 5.25%, 2030		350,000		349,570
Los Angeles County, CA, Schools (Regionalized Business Service Corp.), Pooled Financing, Capital Appreciation, “A”, AMBAC, 0%, 2021		2,135,000		1,095,255
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev. (Meharry Medical College), AMBAC, 6%, 2016		1,575,000		1,748,219
New York Dormitory Authority Rev. (City University) “A”, 5.75%, 2018		5,000,000		5,713,850
New York Urban Development Corp. Rev. (State Facilities), 5.6%, 2015		1,000,000		1,099,650
Newberry, SC, Investing in Children’s Education (Newberry County School District Program), 5%, 2030		350,000		335,482
Philadelphia, PA, Municipal Authority Rev., 6.5%, 2034		105,000		109,578
Riverside, MO, Tax Increment Rev. (L-385 Levee Project), 5.25%, 2020		500,000		510,620
St. Louis, MO, Industrial Development Authority Leasehold Rev. (Convention Center Hotel), Capital Appreciation, AMBAC, 0%, 2018		300,000		200,220

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
State & Local Agencies - continued
Utah Building Ownership Authority Lease Rev. (State Facilities Master Lease Program), “C”, AGM, 5.5%, 2019	$	1,750,000	$	2,037,070
West Virginia Building Commission, Lease Rev. (WV Regional Jail), “A”, AMBAC, 5.375%, 2018		500,000		533,430

			$	19,242,251
Student Loan Revenue - 0.4%
Massachusetts Educational Financing Authority, Education Loan Rev., “H”, ASSD GTY, 6.35%, 2030	$	445,000	$	471,095

Tax - Other - 2.5%
Dallas County, TX, Flood Control District, 7.25%, 2032	$	500,000	$	518,160
New York, NY, Transitional Finance Authority Rev., “A”, 5%, 2026 (f)		1,960,000		2,043,516
Virgin Islands Public Finance Authority Rev. (Diageo Project), “A”, 6.75%, 2037		160,000		169,125

			$	2,730,801
Tax Assessment - 3.9%
Atlanta, GA, Tax Allocation (Eastside Project), “A”, 5.625%, 2016	$	300,000	$	316,080
Celebration Community Development District, FL, “A”, 6.4%, 2034		220,000		221,654
Chicago, IL, Tax Increment Allocation (Pilsen Redevelopment), “B”, 6.75%, 2022		610,000		609,994
Du Page County, IL, Special Service Area (Monarch Landing Project), 5.4%, 2016		189,000		182,544
Grand Bay at Doral Community Development District, FL, “B”, 6%, 2017 (d)		405,000		142,722
Heritage Harbour North Community Development District, FL, Capital Improvement Rev., 6.375%, 2038		130,000		106,535
Huntington Beach, CA, Community Facilities District, Special Tax (Grand Coast Resort), “2000-1”, 6.45%, 2031		300,000		299,961
Lincoln, CA, Special Tax (Community Facilities District ), “2003-1”, 5.55%, 2013 (c)		445,000		507,936
Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 2034		225,000		197,134
Magnolia Park Community Development District, FL, Special Assessment, “A”, 6.15%, 2039		180,000		120,424
Plano, IL, Special Service Area No. 4 (Lakewood Springs Project Unit 5-B), 6%, 2035		735,000		619,730
Seven Oaks, FL, Community Development District II Special Assessment Rev., “A”, 5.875%, 2035		455,000		277,127
Tolomato Community Development District, FL, Special Assessment, 6.65%, 2040		100,000		71,649

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Tax Assessment - continued
Volo Village, IL, Special Service Area No. 3, Special Tax (Symphony Meadows Project), “1”, 6%, 2036	$	250,000	$	182,600
West Villages Improvement District, FL, Special Assessment Rev. (Unit of Development No. 3), 5.5%, 2037		480,000		226,742
Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 2037 (d)		480,000		182,400

			$	4,265,232
Tobacco - 3.9%
Badger, WI, Tobacco Asset Securitization Corp., 6.375%, 2012 (c)	$	250,000	$	270,820
Buckeye, OH, Tobacco Settlement Financing Authority, “A-2”, 5.875%, 2047		1,405,000		977,009
Buckeye, OH, Tobacco Settlement Financing Authority, “A-2”, 6.5%, 2047		635,000		485,445
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 6.25%, 2013 (c)		555,000		607,547
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 5.75%, 2047		165,000		117,897
Inland Empire, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, Capital Appreciation, “C-1”, 0%, 2036		250,000		8,880
Louisiana Tobacco Settlement Authority Rev., “2001-B”, 5.875%, 2039		300,000		295,707
Michigan Tobacco Settlement Finance Authority Rev., Asset Backed, “A”, 6%, 2048		1,005,000		709,972
New Jersey Tobacco Settlement Financing Corp., “1-A”, 5%, 2041		445,000		281,872
Washington Tobacco Settlement Authority Rev., 6.625%, 2032		460,000		460,777

			$	4,215,926
Toll Roads - 3.2%
Northwest Parkway, CO, Public Highway Authority (First Tier), “D”, 7.125%, 2011 (c)	$	490,000	$	516,475
Pennsylvania Turnpike Commission, Capital Appreciation, “C”, AGM, 0% to 2016, 6.25% to 2033		1,180,000		912,883
San Joaquin Hills, CA, Transportation Corridor Agency, Toll Road Rev., Capital Appreciation, “A”, NATL, 0%, 2015		2,000,000		1,562,340
Texas Private Activity Bond, Surface Transportation Corp., 7%, 2040		425,000		437,198

			$	3,428,896
Transportation - Special Tax - 1.2%
Regional Transportation Authority, IL, “C”, FGIC, 7.75%, 2020	$	1,000,000	$	1,287,670

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Universities - Colleges - 26.3%
Anderson, IN, Economic Development Rev. (Anderson University Project), 5%, 2028	$	225,000	$	201,233
California Educational Facilities Authority Rev. (California Lutheran University), 5.75%, 2038		350,000		355,254
California Educational Facilities Authority Rev. (University of Southern California), “A”, 5.25%, 2038		535,000		558,679
California Municipal Finance Authority Rev. (Biola University), 5.8%, 2028		100,000		103,118
California State University Rev., “A”, AMBAC, 5%, 2026		960,000		990,989
District of Columbia Rev. (Georgetown University), Capital Appreciation, BHAC, 0% to 2018, 5% to 2040		1,430,000		861,289
Grand Valley, MI, State University Rev., 5.5%, 2027		115,000		120,552
Grand Valley, MI, State University Rev., 5.625%, 2029		55,000		57,602
Harris County, TX, Cultural Education Facilities Rev. (Baylor College of Medicine), “D”, 5.625%, 2032		490,000		460,340
Illinois Finance Authority Rev. (Illinois Institute of Technology), “A”, 5%, 2031		335,000		295,212
Illinois Finance Authority Rev. (Illinois Institute of Technology), “A”, 5%, 2036		335,000		282,817
Illinois Finance Authority Rev. (Roosevelt University Project), 6.25%, 2029		545,000		566,282
Illinois Finance Authority Rev. (Roosevelt University Project), 6.5%, 2039		125,000		130,265
Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.125%, 2027		285,000		279,460
Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.25%, 2037		255,000		241,470
Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2030		100,000		97,304
Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2039		100,000		95,727
Massachusetts Development Finance Agency Rev. (Simmons College), SYNCORA, 5.25%, 2026		125,000		127,283
Massachusetts Development Finance Agency Rev. (Western New England College), 6.125%, 2012 (c)		315,000		349,222
Massachusetts Health & Educational Facilities Authority Rev. (Simmons College), “I”, 8%, 2029		225,000		255,987
Massachusetts Health & Educational Facilities Authority Rev. (Springfield College), 5.625%, 2040		90,000		90,712
Massachusetts Health & Educational Facilities Authority Rev. (Suffolk University), “A”, 6.25%, 2030		415,000		437,775

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Universities - Colleges - continued
Massachusetts Health & Educational Facilities Authority Rev. (Suffolk University), “A”, 5.75%, 2039	$	370,000	$	376,745
Miami-Dade County, FL, Educational Facilities Authority Rev. (University of Miami), “A”, 5.75%, 2028		125,000		129,564
Michigan Higher Education Facilities Authority Rev. (College for Creative Studies), 6.125%, 2037		475,000		478,339
New Jersey Educational Facilities Authority Rev. (University of Medicine & Dentistry), “B”, 7.5%, 2032		460,000		526,130
New York Dormitory Authority Rev. (Columbia University), 5%, 2038 (u)		15,000,000		15,554,550
Pennsylvania Higher Educational Facilities Authority Rev. (Lasalle University), “A”, 5.25%, 2027		45,000		45,413
San Leanna, TX, Educational Facilities Corp., Higher Education Rev. (St. Edwards University), 5.125%, 2036		115,000		103,604
Tulsa, OK, Industrial Authority Rev. (University of Tulsa), 6%, 2027		535,000		588,800
University of Minnesota, “A”, ETM, 5.75%, 2014 (c)		500,000		580,770
University of Minnesota, “A”, ETM, 5.5%, 2021 (c)		2,000,000		2,398,360
University of Southern Indiana Rev. (Student Fee), “J”, ASSD GTY, 5.75%, 2028		210,000		227,661
University of Southern Mississippi Educational Building Corp. Rev. (Campus Facilities Project), 5.25%, 2032		190,000		199,074
University of Southern Mississippi Educational Building Corp. Rev. (Campus Facilities Project), 5.375%, 2036		65,000		68,064
Washington Higher Education Facilities Authority Rev. (Whitworth University), 5.875%, 2034		225,000		234,653

			$	28,470,299
Universities - Dormitories - 1.1%
Bowling Green, OH, Student Housing Rev. (State University Project), 6%, 2045	$	285,000	$	276,137
California Statewide Communities Development Authority Rev. (Lancer Educational Student Housing Project), 5.625%, 2033		500,000		418,725
California Statewide Communities Development Authority Rev. (Student Housing, SUCI East Campus), 6%, 2040		220,000		220,909
Maryland Economic Development Corp. Student Housing (University of Maryland - College Park), 5.875%, 2043		130,000		130,585
Pennsylvania Higher Education Facilities Authority Rev. (Edinboro University Foundation), 5.8%, 2030		65,000		64,151
Pennsylvania Higher Education Facilities Authority Rev. (Edinboro University Foundation), 6%, 2043		85,000		84,274

			$	1,194,781

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Universities - Secondary Schools - 0.5%
Clifton, TX, Higher Education Finance Corp. Rev. (Uplift Education), “A”, 6.125%, 2040	$	100,000	$	92,365
Clifton, TX, Higher Education Finance Corp. Rev. (Uplift Education), “A”, 6.25%, 2045		70,000		65,146
Colorado Educational & Cultural Facilities Authority Rev. (Academy of Charter Schools Project), 5.625%, 2040		230,000		227,863
La Vernia, TX, Higher Education Finance Corp. Rev. (KIPP, Inc.), “A”, 6.25%, 2039		150,000		148,404

			$	533,778
Utilities - Cogeneration - 1.0%
Pennsylvania Economic Development Financing Authority Rev., Resource Recovery Rev. (Colver), “G”, 5.125%, 2015	$	275,000	$	274,101
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Central Facilities (Cogeneration Facilities - AES Puerto Rico Project), 6.625%, 2026		320,000		321,245
Suffolk County, NY, Industrial Development Agency Rev. (Nissequoque Cogeneration Partners Facilities), 5.5%, 2023		550,000		482,229

			$	1,077,575
Utilities - Investor Owned - 11.1%
Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 5.75%, 2036 (b)	$	65,000	$	61,090
Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 6.75%, 2038		270,000		86,276
Chula Vista, CA, Industrial Development Rev. (San Diego Gas), 5.875%, 2034		195,000		217,396
Clark County, NV, Industrial Development Rev. (Southwest Gas Corp. Project), “E”, 5.8%, 2038 (b)		250,000		260,540
Farmington, NM, Pollution Control Rev. (Public Service New Mexico), “D”, 5.9%, 2040		400,000		400,000
Hawaii Department of Budget & Finance Special Purpose Rev. (Hawaiian Electric Co. & Subsidiary), 6.5%, 2039		410,000		442,365
Maricopa County, AZ, Pollution Control Corp., Pollution Control Rev. (Arizona Public Service Co.), “D”, 6%, 2029 (b)		195,000		210,606
Massachusetts Development Finance Agency, Solid Waste Disposal Rev. (Dominion Energy Brayton), 5.75%, 2042 (b)		70,000		74,108
Matagorda County, TX, Navigation District 1 (Houston Lighting.), AMBAC, 5.125%, 2028		2,000,000		1,859,140
Michigan Strategic Fund, Ltd. Obligation Rev. (Detroit Edison), “A”, NATL, 5.55%, 2029		3,000,000		3,034,050
Mississippi Business Finance Corp., Pollution Control Rev. (Systems Energy Resources Project), 5.875%, 2022		1,000,000		990,540

Portfolio of Investments – continued


Issuer	Shares/Par		Value ($)

Municipal Bonds - continued
Utilities - Investor Owned - continued
New Hampshire Business Finance Authority, Pollution Control Rev. (Public Service of New Hampshire), “B”, NATL, 4.75%, 2021	$	250,000	$	242,400
Pennsylvania Economic Development Financing Authority (Allegheny Energy Supply Co. LLC), 7%, 2039		495,000		538,293
Petersburg, IN, Pollution Control Rev. (Indianapolis Power & Light), NATL, 5.4%, 2017		2,500,000		2,707,300
Pima County, AZ, Industrial Development Authority Rev. (Tucson Electric Power Co.), 5.75%, 2029		485,000		492,576
Sweetwater County, WY, Pollution Control Rev. (Idaho Power Co.), 5.25%, 2026		425,000		446,297

			$	12,062,977
Utilities - Other - 3.6%
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5.5%, 2026	$	120,000	$	119,738
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5.5%, 2028		250,000		242,803
Indiana Bond Bank Special Program, Gas Rev., “A”, 5.25%, 2018		190,000		202,844
Public Authority for Colorado Energy Natural Gas Purchase Rev., 6.5%, 2038		425,000		464,024
Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2032		795,000		708,838
Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2037		790,000		692,301
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2017		180,000		188,192
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2022		205,000		205,160
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2023		300,000		299,424
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2026		610,000		591,523
Tennessee Energy Acquisition Corp., Gas Rev., “C”, 5%, 2025		185,000		177,021

			$	3,891,868
Water & Sewer Utility Revenue - 3.0%
Atlanta, GA, Water & Wastewater Rev., “A”, 6%, 2022	$	290,000	$	331,702
Commonwealth of Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2038		505,000		519,822
Commonwealth of Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2044		195,000		199,873
Detroit, MI, Sewer Disposal System Rev., “B”, AGM, 7.5%, 2033		410,000		488,659
Hampton Roads, VA, Sanitation District Wastewater Rev., 5%, 2033		140,000		146,185
Massachusetts Water Pollution Abatement, 5.25%, 2028		750,000		870,998
Massachusetts Water Resources Authority, “B”, AGM, 5.25%, 2029		600,000		675,072

			$	3,232,311
Total Municipal Bonds (Identified Cost, $156,796,431)			$	159,674,387

Portfolio of Investments – continued


Money Market Funds (v) - 1.8%
Issuer	Shares/Par		Value ($)

MFS Institutional Money Market Portfolio, 0.22%, at Cost and Net Asset Value		1,908,017	$	1,908,017
Total Investments (Identified Cost, $158,704,448)			$	161,582,404

Other Assets, Less Liabilities - (4.0)%				(4,377,903	)
Preferred Shares (Issued by the Fund) - (45.0)%				(48,750,000	)
Net assets applicable to common shares - 100.0%			$	108,454,501

(a)	Non-income producing security.

(b)	Mandatory tender date is earlier than stated maturity date.

(c)	Refunded bond.

(d)	Non-income producing security - in default.

(f)	All or a portion of the security has been segregated as collateral for open futures contracts.

(n)

Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $1,304,545 representing 1.2% of net assets applicable to common shares.

(q)	Interest received was less than stated coupon rate.

(u)	Underlying security deposited into special purpose trust (“the trust”) by investment banker upon creation of self-deposited inverse floaters.

(v)	Underlying fund that is available only to investment companies managed by MFS. The rate quoted is the annualized seven-day yield of the fund at period end.

(z)

Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:

Restricted Securities

Acquisition
Date

Cost

Current
Market
Value

MuniMae TE Bond Subsidiary LLC, 5.5%, 2049

11/02/05

$1,000,000

$659,430

Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016

8/27/93

229,968

216,754

Total Restricted Securities

$876,184

% of net assets applicable to common shares

0.8%

The following abbreviations are used in this report and are defined:

COP

Certificate of Participation

ETM

Escrowed to Maturity

LOC

Letter of Credit

Portfolio of Investments – continued


Insurers
AGM		Assured Guaranty Municipal
AMBAC		AMBAC Indemnity Corp.
ASSD GTY		Assured Guaranty Insurance Co.
BHAC		Berkshire Hathaway Assurance Corp.
CHCLI		California Health Construction Loan Insurance
FGIC		Financial Guaranty Insurance Co.
FHA		Federal Housing Administration
FHLMC		Federal Home Loan Mortgage Corp.
GNMA		Government National Mortgage Assn.
NATL		National Public Finance Guarantee Corp.
SYNCORA		Syncora Guarantee Inc.

Derivative Contracts at 11/30/10

Futures Contracts Outstanding at 11/30/10

Description

Currency

Contracts

Value

Expiration
Date

Unrealized
Appreciation
(Depreciation)

Asset Derivatives

Interest Rate Futures

U.S. Treasury Note 10 yr (Short)

USD

$11,169,844

March - 2011

$28,513

Liability Derivatives

Interest Rate Futures

U.S. Treasury Bond 30 yr (Short)

USD

5,218,531

March - 2011

(7,831

)

At November 30, 2010, the fund had sufficient cash and/or other liquid securities to cover any commitments under these derivative contracts.

See Notes to Financial Statements

Financial Statements

STATEMENT OF ASSETS AND LIABILITIES

At 11/30/10

This statement represents your fund’s balance sheet, which details the assets and liabilities comprising the total value of the fund.


Assets
Investments –
Non-affiliated issuers, at value (identified cost, $156,796,431)	$159,674,387
Underlying funds, at cost and value	1,908,017
Total investments, at value (identified cost, $158,704,448)			$161,582,404
Receivables for
Investments sold	636,473
Interest	2,790,690
Other assets	7,427
Total assets			$165,016,994
Liabilities
Payables for
Distributions on common shares	$45,167
Distributions on preferred shares	549
Daily variation margin on open futures contracts	41,219
Investments purchased	99,788
Payable to the holder of the floating rate certificate from trust assets	7,505,100
Payable for interest expense and fees	25,758
Payable to affiliates
Investment adviser	5,420
Transfer agent and dividend disbursing costs	1,139
Administrative services fee	168
Payable for independent Trustees’ compensation	5,416
Accrued expenses and other liabilities	82,769
Total liabilities			$7,812,493
Preferred shares
Auction preferred shares (1,950 shares issued and outstanding at $25,000 per share) at liquidation value			$48,750,000
Net assets applicable to common shares			$108,454,501
Net assets consist of
Paid-in capital – common shares	$125,877,428
Unrealized appreciation (depreciation) on investments	2,898,638
Accumulated net realized gain (loss) on investments	(21,082,421	)
Undistributed net investment income	760,856
Net assets applicable to common shares			$108,454,501
Preferred shares, at liquidation value (1,950 shares issued and outstanding at $25,000 per share)			48,750,000
Net assets including preferred shares			$157,204,501
Common shares of beneficial interest outstanding			11,532,289
Net asset value per common share (net assets of $108,454,501 / 11,532,289 shares of beneficial interest outstanding)			$9.40

See Notes to Financial Statements

Financial Statements

STATEMENT OF OPERATIONS

Year ended 11/30/10

This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations.


Net investment income
Interest income	$9,254,641
Dividends from underlying funds	2,681
Total investment income			$9,257,322
Expenses
Management fee	$1,038,048
Transfer agent and dividend disbursing costs	20,348
Administrative services fee	32,504
Independent Trustees’ compensation	19,312
Stock exchange fee	23,533
Preferred shares service fee	51,509
Custodian fee	20,700
Shareholder communications	20,849
Auditing fees	74,772
Legal fees	5,845
Interest expense and fees	54,669
Miscellaneous	104,275
Total expenses			$1,466,364
Fees paid indirectly	(10	)
Reduction of expenses by investment adviser	(32,486	)
Net expenses			$1,433,868
Net investment income			$7,823,454
Realized and unrealized gain (loss) on investments
Realized gain (loss) (identified cost basis)
Investment transactions	$(222,452	)
Futures contracts	(1,677,598	)
Net realized gain (loss) on investments			$(1,900,050	)
Change in unrealized appreciation (depreciation)
Investments	$1,998,813
Futures contracts	321,987
Net unrealized gain (loss) on investments			$2,320,800
Net realized and unrealized gain (loss) on investments			$420,750
Distributions declared to preferred shareholders			$(199,000	)
Change in net assets from operations			$8,045,204

See Notes to Financial Statements

Financial Statements

STATEMENTS OF CHANGES IN NET ASSETS

These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions.


	Years ended 11/30
	2010			2009
Change in net assets
From operations
Net investment income		$7,823,454			$7,892,489
Net realized gain (loss) on investments		(1,900,050	)		(3,263,936	)
Net unrealized gain (loss) on investments		2,320,800			19,321,775
Distributions declared to preferred shareholders		(199,000	)		(347,025	)
Change in net assets from operations		$8,045,204			$23,603,303
Distributions declared to common shareholders
From net investment income		$(7,485,209	)		$(6,928,417	)
Net asset value of shares issued to common shareholders in reinvestment of distributions		$228,232			$—
Total change in net assets		$788,227			$16,674,886
Net assets applicable to common shares
At beginning of period		107,666,274			90,991,388
At end of period (including undistributed net investment income of $760,856 and $689,139, respectively)		$108,454,501			$107,666,274

See Notes to Financial Statements

Financial Statements

FINANCIAL HIGHLIGHTS

The financial highlights table is intended to help you understand the fund’s financial performance for the past 5 years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period.


	Years ended 11/30
	2010			2009			2008			2007			2006
Net asset value, beginning of period		$9.35			$7.91			$10.56			$11.53			$11.16
Income (loss) from investment operations
Net investment income (d)		$0.68			$0.69			$0.67			$0.79	(z)		$0.75
Net realized and unrealized gain (loss) on investments		0.04			1.38			(2.59	)		(1.02)	(z)		0.37
Distributions declared to preferred shareholders		(0.02	)		(0.03	)		(0.18	)		(0.19	)		(0.17	)
Total from investment operations		$0.70			$2.04			$(2.10	)		$(0.42	)		$0.95
Less distributions declared to common shareholders
From net investment income, common shares		$(0.65	)		$(0.60	)		$(0.55	)		$(0.55	)		$(0.58	)
Net asset value, end of period		$9.40			$9.35			$7.91			$10.56			$11.53
Common share market value, end of period		$9.21			$9.08			$6.35			$9.56			$10.73
Total return at market value (%) (p)		8.54			53.99			(29.32	)		(6.12	)		8.96
Total return at net asset value (%) (j)(p)(r)(s)(t)		7.58			27.29			(20.30	)		(3.50	)		9.11
Ratios (%) (to average net assets applicable to common shares) and Supplemental data:
Expenses before expense reductions (f)(p)		1.32			1.44			1.56			1.35			1.37
Expenses after expense reductions (f)(p)		1.29			1.40			1.47			1.32			1.34
Net investment income (p)		7.05			7.94			6.82			7.10	(z)		6.71
Portfolio turnover		7			14			34			24			34
Net assets at end of period (000 omitted)		$108,455			$107,666			$90,991			$121,593			$132,663
Supplemental Ratios (%):
Ratio of expenses to average net assets applicable to common shares after expense reductions and excluding interest expense and fees (f)(l)(p)		1.24			1.33			1.34			1.29			1.31
Net investment income available to common shares		6.87			7.59			5.01			5.37			5.15

Financial Highlights – continued


	Years ended 11/30
	2010		2009		2008		2007		2006
Senior Securities:
Total preferred shares outstanding		1,950		1,950		1,950		2,400		2,400
Asset coverage per preferred share (k)		$80,618		$80,213		$71,662		$75,664		$80,276
Involuntary liquidation preference per preferred share (o)		$25,000		$25,000		$25,000		$25,000		$25,007
Average market value per preferred share (m)(x)		$25,000		$25,000		$25,000		$25,000		$25,000

(d)	Per share data is based on average shares outstanding.

(f)	Ratios do not reflect reductions from fees paid indirectly, if applicable.

(j)	Total return at net asset value is calculated using the net asset value of the fund, not the publicly traded price and therefore may be different than the total return at market value.

(k)	Calculated by subtracting the fund’s total liabilities (not including preferred shares) from the fund’s total assets and dividing this number by the number of preferred shares outstanding.

(l)	Interest expense and fees relate to payments made to the holder of the floating rate certificate from trust assets.

(m)	Amount excludes accrued unpaid distributions to Auction Preferred Shareholders.

(o)	Effective November 30, 2007, amount excludes accrued unpaid distributions to Auction Preferred Shareholders.

(p)	Ratio excludes dividend payment on auction preferred shares.

(r)	Certain expenses have been reduced without which performance would have been lower.

(s)	From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.

(t)	Prior to November 30, 2007, total return at net asset value is unaudited.

(x)	Average market value represents the approximate fair value of the fund’s liability.

(z)

The fund applied a change in estimate for amortization of premium on certain debt securities in the year ended November 30, 2007 that resulted in an increase of $0.04 per share to net investment income, a decrease of $0.04 per share to net realized and unrealized gain (loss) on investments, and an increase of 0.35% to the net investment income ratio. The change in estimate had no impact on net assets, net asset value per share or total return.

See Notes to Financial Statements

NOTES TO FINANCIAL STATEMENTS

(1)

Business and Organization

MFS Investment Grade Municipal Trust (the fund) is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as a closed-end management investment company.

(2)

Significant Accounting Policies

General – The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. In the preparation of these financial statements, management has evaluated subsequent events occurring after the date of the fund’s Statement of Assets and Liabilities through the date that the financial statements were issued. The fund invests primarily in municipal investments. The value of municipal instruments can be affected by changes in their actual or perceived credit quality. The credit quality of municipal instruments can be affected by, among other things, the financial condition of the issuer or guarantor, the issuer’s future borrowing plans and sources of revenue, the economic feasibility of the revenue bond project or general borrowing purpose, political or economic developments in the region where the instrument is issued and the liquidity of the security. Municipal instruments generally trade in the over-the-counter market. Municipal instruments backed by current and anticipated revenues from a specific project or specific assets can be negatively affected by the discontinuance of the taxation supporting the projects or assets or the inability to collect revenues for the project or from the assets. If the Internal Revenue Service determines an issuer of a municipal instrument has not complied with the applicable tax requirements, the security could decline in value, interest from the security could become taxable and the funds may be required to issue Forms 1099-DIV.

Investment Valuations – Debt instruments and floating rate loans (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less generally are valued at amortized cost, which approximates market value. Futures contracts are generally valued at last posted settlement price as provided by a third-party pricing service on the market on which they are primarily traded. Futures contracts for which there were no trades that day for a particular position are generally valued at the closing bid quotation as provided by a third-party pricing service on the market on which such futures

Notes to Financial Statements – continued

contracts are primarily traded. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. Values obtained from third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data.

The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund’s assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair

Notes to Financial Statements – continued

value measurement. The fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures, forwards, swap contracts, and written options. The following is a summary of the levels used as of November 30, 2010 in valuing the fund’s assets or liabilities:


Investments at Value	Level 1		Level 2		Level 3		Total
Municipal Bonds		$—		$159,674,387		$—		$159,674,387
Mutual Funds		1,908,017		—		—		1,908,017
Total Investments		$1,908,017		$159,674,387		$—		$161,582,404

Other Financial Instruments
Futures		$20,682		$—		$—		$20,682

For further information regarding security characteristics, see the Portfolio of Investments.

Derivatives – The fund may use derivatives for different purposes, including to earn income and enhance returns, to increase or decrease exposure to a particular market, to manage or adjust the risk profile of the fund, or as alternatives to direct investments. Derivatives may be used for hedging or non-hedging purposes. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. When the fund uses derivatives as an investment to increase market exposure, or for hedging purposes, gains and losses from derivative instruments may be substantially greater than the derivative’s original cost.

Derivative instruments include written options, purchased options, futures contracts, forward foreign currency exchange contracts, and swap agreements. The fund’s period end derivatives, as presented in the Portfolio of Investments and the associated Derivative Contract Tables, generally are indicative of the volume of its derivative activity during the period.

The following table presents, by major type of derivative contract, the fair value, on a gross basis, of the asset and liability components of derivatives held by the fund at November 30, 2010 as reported in the Statement of Assets and Liabilities:


		Fair Value (a)
Risk	Derivative	Asset Derivatives		Liability Derivatives
Interest Rate Contracts	Interest Rate Futures		$28,513		$(7,831)

Notes to Financial Statements – continued

(a)	The value of futures contracts outstanding includes cumulative appreciation (depreciation) as reported in the fund’s Portfolio of Investments. Only the current day variation margin for futures contracts is separately reported within the fund’s Statement of Assets and Liabilities.

The following table presents, by major type of derivative contract, the realized gain (loss) on derivatives held by the fund for the year ended November 30, 2010 as reported in the Statement of Operations:


Risk	Futures Contracts
Interest Rate Contracts		$(1,677,598	)

The following table presents, by major type of derivative contract, the change in unrealized appreciation (depreciation) on derivatives held by the fund for the year ended November 30, 2010 as reported in the Statement of Operations:


Risk	Futures Contracts
Interest Rate Contracts		$321,987

Derivative counterparty credit risk is managed through formal evaluation of the creditworthiness of all potential counterparties. On certain over-the-counter derivatives, the fund attempts to reduce its exposure to counterparty credit risk whenever possible by entering into an International Swaps and Derivatives Association (ISDA) Master Agreement on a bilateral basis with each of the counterparties with whom it undertakes a significant volume of transactions. The ISDA Master Agreement gives each party to the agreement the right to terminate all transactions traded under such agreement if there is a certain deterioration in the credit quality of the other party. The ISDA Master Agreement gives the fund the right, upon an event of default by the applicable counterparty or a termination of the agreement, to close out all transactions traded under such agreement and to net amounts owed under each transaction to one net amount payable by one party to the other. This right to close out and net payments across all transactions traded under the ISDA Master Agreement could result in a reduction of the fund’s credit risk to such counterparty equal to any amounts payable by the fund under the applicable transactions, if any. However, absent an event of default by the counterparty or a termination of the agreement, the ISDA Master Agreement does not result in an offset of reported amounts of assets and liabilities in the Statement of Assets and Liabilities across transactions between the fund and the applicable counterparty.

Collateral requirements differ by type of derivative. Collateral or margin requirements are set by the broker or exchange clearing house for exchange traded derivatives (i.e., futures and exchange-traded options) while collateral terms are contract specific for over-the-counter traded derivatives (i.e., forwards, swaps and over-the-counter options). For derivatives traded under an ISDA Master Agreement, the collateral requirements are netted across all

Notes to Financial Statements – continued

transactions traded under such agreement and one amount is posted from one party to the other to collateralize such obligations. Cash collateral that has been pledged to cover obligations of the fund under derivative contracts, if any, will be reported separately on the Statement of Assets and Liabilities as restricted cash. Securities collateral pledged for the same purpose, if any, is noted in the Portfolio of Investments.

Futures Contracts – The fund entered into futures contracts which may be used to gain or to hedge against broad market, interest rate or currency exposure. A futures contract represents a commitment for the future purchase or sale of an asset at a specified price on a specified date.

Upon entering into a futures contract, the fund is required to deposit with the broker, either in cash or securities, an initial margin in an amount equal to a certain percentage of the notional amount of the contract. Subsequent payments (variation margin) are made or received by the fund each day, depending on the daily fluctuations in the value of the contract, and are recorded for financial statement purposes as unrealized gain or loss by the fund until the contract is closed or expires at which point the gain or loss on futures is realized.

The fund bears the risk of interest rates, exchange rates or securities prices moving unexpectedly, in which case, the fund may not achieve the anticipated benefits of the futures contracts and may realize a loss. While futures may present less counterparty risk to the fund since the contracts are exchange traded and the exchange’s clearinghouse guarantees payments to the broker, there is still counterparty credit risk due to the insolvency of the broker. The fund’s maximum risk of loss due to counterparty credit risk is equal to the margin posted by the fund to the broker plus any gains or minus any losses on the outstanding futures contracts.

Inverse Floaters – The fund invests in municipal inverse floating rate securities which are structured by the issuer (known as primary market inverse floating rate securities) or by an investment banker utilizing municipal bonds which have already been issued (known as secondary market inverse floating rate securities) to have variable rates of interest which typically move in the opposite direction of short term interest rates. A secondary market inverse floating rate security is created when an investment banker transfers a fixed rate municipal bond to a special purpose trust, and causes the trust to (a) issue floating rate certificates to third parties, in an amount equal to a fraction of the par amount of the deposited bonds (these certificates usually pay tax-exempt interest at short-term interest rates that typically reset weekly; and the certificate holders typically, on seven days notice, have the option to tender their certificates to the investment banker or another party for redemption at par plus accrued interest), and (b) issue inverse floating rate certificates

Notes to Financial Statements – continued

(sometimes referred to as “inverse floaters”). If the holder of the inverse floater transfers the municipal bonds to an investment banker for the purpose of depositing the municipal bonds into the special purpose trust, the inverse floating rate certificates that are issued by the trust are referred to as “self-deposited inverse floaters.” If the bonds held by the trust are purchased by the investment banker for deposit into the trust from someone other than the purchasers of the inverse floaters, the inverse floating rate certificates that are issued by the trust are referred to as “externally deposited inverse floaters.” Such self-deposited inverse floaters held by the fund are accounted for as secured borrowings, with the municipal bonds reflected in the investments of the fund and amounts owed to the holder of the floating rate certificate under the provisions of the trust, which amounts are paid solely from the assets of the trust, reflected as liabilities of the fund in the Statement of Assets and Liabilities under the caption, “Payable to the holder of the floating rate certificate from trust assets”. The carrying value of the fund’s payable to the holder of the floating rate certificate from trust assets as reported on the fund’s Statement of Assets and Liabilities approximates its fair value. At November 30, 2010, the fund’s payable to the holder of the floating rate certificate from trust assets was $7,505,100 and the interest rate on these floating rate certificates issued by the trust was 0.17%. For the year ended November 30, 2010, the average payable to the holder of the floating rate certificate from trust assets was $ 7,515,863 at a weighted average interest rate of 0.73%. Interest expense and fees relate to interest payments made to the holder of certain floating rate certificates and associated fees, both of which are made from trust assets. Interest expense and fees are recorded as incurred. For the year ended November 30, 2010, interest expense and fees in connection with self-deposited inverse floaters was $54,669. Primary and externally deposited inverse floaters held by the fund are not accounted for as secured borrowings.

Indemnifications – Under the fund’s organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund’s maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred.

Investment Transactions and Income – Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the

Notes to Financial Statements – continued

ex-dividend or ex-interest date in an amount equal to the value of the security on such date. Debt obligations may be placed on non-accrual status or set to accrue at a rate of interest less than the contractual coupon when the collection of all or a portion of interest has become doubtful. Interest income for those debt obligations may be further reduced by the write-off of the related interest receivables when deemed uncollectible.

The fund may receive proceeds from litigation settlements. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations.

Legal fees and other related expenses incurred to preserve and protect the value of a security owned are added to the cost of the security; other legal fees are expensed. Capital infusions made directly to the security issuer, which are generally non-recurring, incurred to protect or enhance the value of high-yield debt securities, are reported as additions to the cost basis of the security. Costs that are incurred to negotiate the terms or conditions of capital infusions or that are expected to result in a plan of reorganization are reported as realized losses. Ongoing costs incurred to protect or enhance an investment, or costs incurred to pursue other claims or legal actions, are expensed.

Fees Paid Indirectly – The fund’s custody fee may be reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. This amount, for the year ended November 30, 2010, is shown as a reduction of total expenses on the Statement of Operations.

Tax Matters and Distributions – The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable and tax-exempt income, including realized capital gains. As a result, no provision for federal income tax is required. The fund’s federal tax returns for the prior three fiscal years remain subject to examination by the Internal Revenue Service.

Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net

Notes to Financial Statements – continued

investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes.

Book/tax differences primarily relate to expiration of capital loss carryforwards, amortization and accretion of debt securities, defaulted bonds and secured borrowings.

The tax character of distributions declared to shareholders for the last two fiscal years is as follows:


	11/30/10		11/30/09
Ordinary income (including any short-term capital gains)		$5,630		$249,596
Tax-exempt income		7,678,579		7,025,846
Total distributions		$7,684,209		$7,275,442

The federal tax cost and the tax basis components of distributable earnings were as follows:


As of 11/30/10
Cost of investments	$150,773,455
Gross appreciation	8,584,180
Gross depreciation	(5,280,331	)
Net unrealized appreciation (depreciation)	$3,303,849
Undistributed ordinary income	23,849
Undistributed tax-exempt income	845,798
Capital loss carryforwards	(21,487,632	)
Other temporary differences	(108,791	)

As of November 30, 2010, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows:


11/30/15	$(7,005,145	)
11/30/16	(6,501,801	)
11/30/17	(5,772,221	)
11/30/18	(2,208,465	)
Total	$(21,487,632	)

(3)

Transactions with Affiliates

Investment Adviser – The fund has an investment advisory agreement with MFS to provide overall investment management and related administrative services and facilities to the fund. The management fee is computed daily and paid monthly at an annual rate of 0.65% of the fund’s average daily net assets (including the value of auction preferred shares).

Notes to Financial Statements – continued

The investment adviser has agreed in writing to reduce its management fee to 0.63% of average daily net assets (including the value of auction preferred shares). This written agreement will continue until modified by the fund’s Board of Trustees, but such agreement will continue at least until November 30, 2011. This management fee reduction amounted to $31,940, which is shown as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended November 30, 2010 was equivalent to an annual effective rate of 0.63% of the fund’s average daily net assets (including the value of auction preferred shares).

The investment adviser has agreed in writing to pay a portion of the fund’s total annual operating expenses, exclusive of, interest, taxes, extraordinary expenses, brokerage and transaction costs and investment-related expenses (including interest expense and fees associated with investments in inverse floating rate instruments) other than preferred shares service fees, such that operating expenses do not exceed 0.89% annually of the fund’s average daily net assets (including the value of auction preferred shares). This written agreement will continue until modified by the fund’s Board of Trustees, but such agreement will continue at least until November 30, 2011. For the year ended November 30, 2010, the fund’s actual operating expenses did not exceed the limit and therefore, the investment adviser did not pay any portion of the fund’s expenses.

Transfer Agent – The fund engages Computershare Trust Company, N.A. (“Computershare”) as the sole transfer agent for the fund’s common shares. MFS Service Center, Inc. (MFSC) monitors and supervises the activities of Computershare for an agreed upon fee approved by the Board of Trustees. For the year ended November 30, 2010, these fees paid to MFSC amounted to $7,053.

Administrator – MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged an annual fixed amount of $17,500 plus a fee based on average daily net assets (including the value of auction preferred shares). The administrative services fee incurred for the year ended November 30, 2010 was equivalent to an annual effective rate of 0.0203% of the fund’s average daily net assets including the value of the auction preferred shares.

Trustees’ and Officers’ Compensation – The fund pays compensation to independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees or to officers of the fund who are also officers of the investment adviser, all of whom receive remuneration for their

Notes to Financial Statements – continued

services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS and MFSC.

Deferred Trustee Compensation – Prior to MFS’ appointment as investment adviser to the fund, the fund’s former independent Trustees participated in a Deferred Compensation Plan (the “Former Colonial Trustees Plan” or “Plan”). The fund’s current independent Trustees are not allowed to defer compensation under the Former Colonial Trustees Plan. Amounts deferred under the Plan are invested in shares of certain non-MFS funds selected by the former independent Trustees as notional investments. Deferred amounts represent an unsecured obligation of the fund until distributed in accordance with the Plan. Included in other assets and payable for independent Trustees’ compensation on the Statement of Assets and Liabilities is $5,416 of deferred Trustees’ compensation. There is no current year expense associated with the Former Colonial Trustees Plan.

Other – This fund and certain other funds managed by MFS (the funds) have entered into services agreements (the Agreements) which provide for payment of fees by the funds to Tarantino LLC and Griffin Compliance LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) and Assistant ICCO, respectively, for the funds. The ICCO and Assistant ICCO are officers of the funds and the sole members of Tarantino LLC and Griffin Compliance LLC, respectively. The funds can terminate the Agreements with Tarantino LLC and Griffin Compliance LLC at any time under the terms of the Agreements. For the year ended November 30, 2010, the aggregate fees paid by the fund to Tarantino LLC and Griffin Compliance LLC were $1,095 and are included in miscellaneous expense on the Statement of Operations. MFS has agreed to reimburse the fund for a portion of the payments made by the fund in the amount of $546, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO and Assistant ICCO.

The fund invests in the MFS Institutional Money Market Portfolio which is managed by MFS and seeks a high level of current income consistent with preservation of capital and liquidity. Income earned on this investment is included in dividends from underlying funds on the Statement of Operations. This money market fund does not pay a management fee to MFS.

(4)

Portfolio Securities

Purchases and sales of investments, other than U.S. Government securities, purchased option transactions, and short-term obligations, aggregated $10,732,596 and $11,992,905, respectively.

Notes to Financial Statements – continued

(5)

Shares of Beneficial Interest

The fund’s Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. The fund reserves the right to repurchase shares of beneficial interest of the fund subject to Trustee approval. During the year ended November 30, 2010, the fund did not repurchase any shares. Transactions in the fund shares were as follows:


	Year ended 11/30/10
	Shares		Amount
Shares issued to shareholders in reinvestment of distributions		23,289		$228,232

(6)

Line of Credit

The fund and certain other funds managed by MFS participate in a $1.1 billion unsecured committed line of credit, subject to a $1 billion sublimit, provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the higher of the Federal Reserve funds rate or one month LIBOR plus an agreed upon spread. A commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. In addition, the fund and other funds managed by MFS have established unsecured uncommitted borrowing arrangements with certain banks for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus an agreed upon spread. For the year ended November 30, 2010, the fund’s commitment fee and interest expense were $1,304 and $0, respectively, and are included in miscellaneous expense on the Statement of Operations.

(7)

Transactions in Underlying Funds – Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be affiliated issuers:

Underlying Funds

Beginning
Shares/Par
Amount

Acquisitions
Shares/Par
Amount

Dispositions
Shares/Par
Amount

Ending
Shares/Par
Amount

MFS Institutional Money

Market Portfolio

1,647,155

23,798,067

(23,537,205

)

1,908,017

Underlying Funds

Realized
Gain (Loss)

Capital Gain
Distributions

Dividend
Income

Ending
Value

MFS Institutional Money

Market Portfolio

$—

$2,681

$1,908,017

Notes to Financial Statements – continued

(8)

Auction Preferred Shares

The fund has 1,950 shares issued and outstanding of Auction Preferred Shares (APS), series M. Dividends are cumulative at a rate that is reset every seven days through an auction process. If the APS are unable to be remarketed on a remarketing date as part of the auction process, the fund would be required to pay the maximum applicable rate on APS to holders of such shares for successive dividend periods until such time when the shares are successfully remarketed. The maximum rate on APS rated aa3/AA- or better is equal to 110% of the higher of (i) the Taxable Equivalent of the Short-Term Municipal Bond Rate or (ii) the “AA” Composite Commercial Paper Rate.

Since February 2008, regularly scheduled auctions for APS issued by closed end funds, including this fund, have consistently failed because of insufficient demand (bids to buy shares) to meet the supply (shares offered for sale) at each auction. In a failed auction, APS holders cannot sell their shares tendered for sale. While repeated auction failures have affected the liquidity for APS, they do not constitute a default or automatically alter the credit quality of the APS, and APS holders have continued to receive dividends at the previously defined “maximum rate”. During the year ended November 30, 2010, the APS dividend rates ranged from 0.26% to 0.66%. For the year ended November 30, 2010, the average dividend rate was 0.41%. These developments with respect to APS do not affect the management or investment policies of the fund. However, one implication of these auction failures for Common shareholders is that the fund’s cost of leverage will be higher than it otherwise would have been had the auctions continued to be successful. As a result, the fund’s future Common share earnings may be lower than they otherwise would have been. To the extent that investments are purchased with the issuance of preferred shares, the fund’s net asset value will increase or decrease at a greater rate than a comparable unleveraged fund.

The fund pays an annual service fee to broker-dealers with customers who are beneficial owners of the preferred shares. The service fee is equivalent to 0.25% of the applicable preferred share liquidation value while the preferred share auctions are successful or to 0.15% or less, varying by broker-dealer, while the auctions are failing. The APS are redeemable at the option of the fund in whole or in part at the redemption price equal to $25,000 per share, plus accumulated and unpaid dividends. The APS are also subject to mandatory redemption if certain requirements relating to its asset maintenance coverage are not satisfied. The fund is required to maintain certain asset coverage with respect to the APS as defined in the fund’s By-Laws and the Investment Company Act of 1940 and, as such is not permitted to declare common share dividends unless the fund’s APS have a minimum asset coverage ratio of 200% after declaration of the common share dividends.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Trustees and Shareholders of MFS Investment Grade Municipal Trust:

We have audited the accompanying statement of assets and liabilities of MFS Investment Grade Municipal Trust (the Fund), including the portfolio of investments, as of November 30, 2010, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the four years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund’s management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The financial highlights for the year ended November 30, 2006 were audited by another independent registered public accounting firm whose report, dated January 25, 2007, expressed an unqualified opinion on those financial highlights.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund’s internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of November 30, 2010 by correspondence with the Fund’s custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Investment Grade Municipal Trust at November 30, 2010, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the four years in the period then ended, in conformity with U.S. generally accepted accounting principles.

LOGO

Boston, Massachusetts

January 14, 2011

RESULTS OF SHAREHOLDER MEETING

(unaudited)

At the annual meeting of shareholders of MFS Investment Grade Municipal Trust, which was held on October 7, 2010, the following actions were taken:

Item 1: To elect the following individuals as Trustees, elected by the holders of common and preferred shares together:


	Number of Shares
Nominee	For		Withheld Authority
Maureen R. Goldfarb		9,969,131.838		216,988.907
Robert J. Manning		9,975,169.243		210,951.502

Item 2: To elect the following individuals as Trustees, elected by the holders of preferred shares only:


	Number of Shares
Nominee	For		Withheld Authority
John P. Kavanaugh		1,260.000		6.000
Laurie J. Thomsen		1,260.000		6.000

TRUSTEES AND OFFICERS — IDENTIFICATION AND BACKGROUND

The Trustees and officers of the Trust, as of January 1, 2011, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116.


Name, Date of Birth	Position(s) Held with Fund	Trustee/Officer Since (h)	Term Expiring	Principal Occupations During the Past Five Years & Other Directorships (j)
INTERESTED TRUSTEES
Robert J. Manning (k) (born 10/20/63)	Trustee	February 2004	2013	Massachusetts Financial Services Company, Chairman, Chief Executive Officer and Director; President (until December 2009); Chief Investment Officer (until July 2010)
Robert C. Pozen (k) (born 8/08/46)	Trustee	February 2004	2012	Massachusetts Financial Services Company, Chairman Emeritus; Chairman (until July 2010); Medtronic, Inc, (medical devices), Director (since 2004); Harvard Business School (education), Senior Lecturer (since 2008); Telesat (satellite communications), Director (until November 2007); Bell Canada Enterprises (telecommunications), Director (until February 2009)
INDEPENDENT TRUSTEES
David H. Gunning (born 5/30/42)	Trustee and Chair of Trustees	January 2004	2012	Retired; Cleveland-Cliffs Inc. (mining products and service provider), Vice Chairman/Director (until May 2007); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director; Development Alternatives, Inc. (consulting), Portman Limited (mining), Director (until 2008)
Robert E. Butler (born 11/29/41)	Trustee	January 2006	2012	Consultant – investment company industry regulatory and compliance matters; PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002)

Trustees and Officers – continued


Name, Date of Birth	Position(s) Held with Fund	Trustee/Officer Since (h)	Term Expiring	Principal Occupations During the Past Five Years & Other Directorships (j)
Maureen R. Goldfarb (born 4/6/55)	Trustee	January 2009	2013	Private investor; John Hancock Financial Services, Inc., Executive Vice President (until 2004); John Hancock Mutual Funds, Trustee and Chief Executive Officer (until 2004)
William R. Gutow (born 9/27/41)	Trustee	December 1993	2011	Private investor and real estate consultant; Capital Entertainment Management Company (video franchise), Vice Chairman; Texas Donuts (donut franchise), Vice Chairman (since 2007); Atlantic Coast Tan (tanning salons), Vice Chairman (until 2007)
Michael Hegarty (born 12/21/44)	Trustee	December 2004	2011	Private investor; AXA Financial (financial services and insurance), Vice Chairman and Chief Operating Officer (until 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until 2001)
John P. Kavanaugh (born 11/4/54)	Trustee	January 2009	2011	Private investor; The Hanover Insurance Group, Inc., Vice President and Chief Investment Officer (until 2006); Allmerica Investment Trust, Allmerica Securities Trust and Opus Investment Trust (investment companies), Chairman, President and Trustee (until 2006)
J. Dale Sherratt (born 9/23/38)	Trustee	June 1989	2012	Insight Resources, Inc. (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner
Laurie J. Thomsen (born 8/05/57)	Trustee	March 2005	2011	Private investor; The Travelers Companies (property and casualty insurance), Director; New Profit, Inc. (venture philanthropy), Executive Partner (until 2010)

Trustees and Officers – continued


Name, Date of Birth	Position(s) Held with Fund	Trustee/Officer Since (h)	Term Expiring	Principal Occupations During the Past Five Years & Other Directorships (j)
Robert W. Uek (born 5/18/41)	Trustee	January 2006	2011	Consultant to investment company industry; PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); TT International Funds (mutual fund complex), Trustee (until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (until 2005)
OFFICERS
Maria F. DiOrioDwyer (k) (born 12/01/58)	President	March 2004	N/A	Massachusetts Financial Services Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006)
Christopher R. Bohane (k) (born 1/18/74)	Assistant Secretary and Assistant Clerk	July 2005	N/A	Massachusetts Financial Services Company, Vice President and Senior Counsel
John M. Corcoran (k) (born 4/13/65)	Treasurer	October 2008	N/A	Massachusetts Financial Services Company, Senior Vice President (since October 2008); State Street Bank and Trust (financial services provider), Senior Vice President, (until September 2008)
Ethan D. Corey (k) (born 11/21/63)	Assistant Secretary and Assistant Clerk	July 2005	N/A	Massachusetts Financial Services Company, Senior Vice President and Associate General Counsel
David L. DiLorenzo (k) (born 8/10/68)	Assistant Treasurer	July 2005	N/A	Massachusetts Financial Services Company, Vice President
Timothy M. Fagan (k) (born 7/10/68)	Assistant Secretary and Assistant Clerk	September 2005	N/A	Massachusetts Financial Services Company, Vice President and Senior Counsel
Mark D. Fischer (k) (born 10/27/70)	Assistant Treasurer	July 2005	N/A	Massachusetts Financial Services Company, Vice President

Trustees and Officers – continued


Name, Date of Birth	Position(s) Held with Fund	Trustee/Officer Since (h)	Term Expiring	Principal Occupations During the Past Five Years & Other Directorships (j)
Robyn L. Griffin (born 7/04/75)	Assistant Independent Chief Compliance Officer	August, 2008	N/A	Griffin Compliance LLC (provider of compliance services), Principal (since August 2008); State Street Corporation (financial services provider), Mutual Fund Administration Assistant Vice President (October 2006 – July 2008); Liberty Mutual Group (insurance), Personal Market Assistant Controller (April 2006 – October 2006); Deloitte & Touche LLP (professional services firm), Senior Manager (prior to April 2006)
Brian E. Langenfeld (k) (born 3/07/73)	Assistant Secretary and Assistant Clerk	June 2006	N/A	Massachusetts Financial Services Company, Vice President and Senior Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (until April 2006)
Ellen Moynihan (k) (born 11/13/57)	Assistant Treasurer	April 1997	N/A	Massachusetts Financial Services Company, Senior Vice President
Susan S. Newton (k) (born 3/07/50)	Assistant Secretary and Assistant Clerk	May 2005	N/A	Massachusetts Financial Services Company, Senior Vice President and Associate General Counsel
Susan A. Pereira (k) (born 11/05/70)	Assistant Secretary and Assistant Clerk	July 2005	N/A	Massachusetts Financial Services Company, Vice President and Senior Counsel
Mark N. Polebaum (k) (born 5/01/52)	Secretary and Clerk	January 2006	N/A	Massachusetts Financial Services Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (until January 2006)
Frank L. Tarantino (born 3/07/44)	Independent Chief Compliance Officer	June 2004	N/A	Tarantino LLC (provider of compliance services), Principal
Richard S. Weitzel (k) (born 7/16/70)	Assistant Secretary and Assistant Clerk	October 2007	N/A	Massachusetts Financial Services Company, Vice President and Assistant General Counsel

Trustees and Officers – continued

Name, Date of Birth

Position(s) Held
with Fund

Trustee/Officer
Since (h)

Term
Expiring

Principal Occupations During
the Past Five Years & Other
Directorships (j)

James O. Yost (k)

(born 6/12/60)

Assistant Treasurer

September 1990

N/A

Massachusetts Financial Services Company, Senior Vice President

(h)

Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. For the period from December 15, 2004 until February 22, 2005, Messrs. Pozen and Manning served as Advisory Trustees. For the period March 2008 until October 2008, Ms. DiOrioDwyer served as Treasurer of the Funds.

(j)	Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., “public companies”).

(k)

“Interested person” of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116.

The Trust holds annual shareholder meetings for the purpose of electing Trustees, and Trustees are elected for fixed terms. The Board of Trustees is currently divided into three classes, each having a term of three years which term expires on the date of the third annual meeting following the election to office of the Trustee’s class. Each year the term of one class expires. Two Trustees, each holding a term of one year, are elected annually by holders of the Trust’s preferred shares. Each Trustee and officer will serve until next elected or his or her earlier death, resignation, retirement or removal.

Messrs. Butler, Kavanaugh, and Uek and Ms. Thomsen are members of the Fund’s Audit Committee.

Each of the Fund’s Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of January 1, 2011, the Trustees served as board members of 99 funds within the MFS Family of Funds.

The Statement of Additional Information for the Fund includes further information about the Trustees and is available without charge upon request by calling 1-800-225-2606.


Investment Adviser		Custodian
Massachusetts Financial Services Company		State Street Bank and Trust
500 Boylston Street, Boston, MA 02116-3741		1 Lincoln Street, Boston, MA 02111-2900
Portfolio Managers		Independent Registered Public Accounting Firm
Michael Dawson		Ernst & Young LLP
Geoffrey Schechter		200 Clarendon Street, Boston, MA 02116

BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT

The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested (“independent”) Trustees, voting separately, annually approve the continuation of the Fund’s investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2010 (“contract review meetings”) for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the “MFS Funds”). The independent Trustees were assisted in their evaluation of the Fund’s investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds’ Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees.

In June 2007, shareholders approved an investment advisory agreement between the Fund and MFS. Effective June 30, 2007, in connection with the consummation of the asset purchase agreement between MFS and Columbia Management Advisors LLC, MFS assumed investment management responsibilities for the Fund.

In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund.

In connection with their contract review meetings, the Trustees received and relied upon materials that included, among other items: (i) information provided by Lipper Inc., an independent third party, on the investment performance (based on net asset value) of the Fund for various time periods ended December 31, 2009 and the investment performance (based on net asset value) of a group of funds with substantially similar investment classifications/objectives (the “Lipper performance universe”), (ii) information provided by

Board Review of Investment Advisory Agreement – continued

Lipper Inc. on the Fund’s advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper Inc. (the “Lipper expense group”), (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee “breakpoints” are observed for the Fund, (v) information regarding MFS’ financial results and financial condition, including MFS’ and certain of its affiliates’ estimated profitability from services performed for the Fund and the MFS Funds as a whole, and compared to MFS’ institutional business, (vi) MFS’ views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS’ senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS.

The Trustees’ conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees’ deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than in others, and that the Trustees’ conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years.

Based on information provided by Lipper Inc., the Trustees reviewed the Fund’s total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund’s common shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2009, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund’s common shares ranked 43rd out of a total of 57 funds in the Lipper performance universe for this three-year period (a ranking of first place out of the total number of funds in the performance

Board Review of Investment Advisory Agreement – continued

universe indicating the best performer and a ranking of last place out of the total number of funds in the performance universe indicating the worst performer). The total return performance of the Fund’s common shares ranked 24th out of a total of 57 funds for the one-year period and 43rd out of a total of 56 funds for the five-year period ended December 31, 2009. Given the size of the Lipper performance universe and information previously provided by MFS regarding differences between the Fund and other funds in its Lipper performance universe, the Trustees also reviewed the Fund’s performance in comparison to the Barclays Capital Municipal Bond Index (the “Index”). The Fund out-performed the Index for the one-year period ended December 21,2009 (34.5% total return for the Fund versus 12.9% total return for the benchmark), and under-performed the Index for each of the three and five-year periods ended December 31, 2009 (three-year: -0.4% total return for the Fund versus 4.4% total return for the benchmark; five-year: 2.2% total return for the Fund versus 4.3% total return for the benchmark). Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report.

The Trustees expressed continued concern to MFS about the substandard investment performance of the Fund. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year as to MFS’ efforts to improve the Fund’s performance, including that MFS became the Fund’s investment advisor in June 2007. In addition, the Trustees requested that they receive a separate update on the Fund’s performance at each of their regular meetings. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that MFS’ responses and efforts and plans to improve investment performance were sufficient to support approval of the continuance of the investment advisory agreement for an additional one-year period, but that they would continue to closely monitor the performance of the Fund.

In assessing the reasonableness of the Fund’s advisory fee, the Trustees considered, among other information, the Fund’s advisory fee and the total expense ratio of the Fund’s common shares as a percentage of average daily net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. The Trustees considered that MFS has agreed in writing to reduce its advisory fee rate, and that MFS currently observes an expense limitation for the Fund, each of which may not be changed without the Trustees’ approval. The Trustees also considered that, according to the Lipper data (which takes into account any fee reductions or

Board Review of Investment Advisory Agreement – continued

expense limitations that were in effect during the Fund’s last fiscal year), the Fund’s effective advisory fee rate was higher than the Lipper expense group median and the Fund’s total expense ratio was approximately at the Lipper expense group median.

The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts.

The Trustees considered that, as a closed-end fund, the Fund is unlikely to experience meaningful asset growth. As a result, the Trustees did not view the potential for realization of economies of scale as the Fund’s assets grow to be a material factor in their deliberations. The Trustees noted that they would consider economies of scale in the future in the event the Fund experiences significant asset growth, such as through a material increase in the market value of the Fund’s portfolio securities.

The Trustees also considered information prepared by MFS relating to MFS’ costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS’ methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability.

After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the services being provided by MFS to the Fund.

In addition, the Trustees considered MFS’ resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the presence of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser that also serves other investment companies as well as other accounts.

The Trustees also considered the nature, quality, cost, and extent of administrative services provided to the Fund by MFS under agreements other

Board Review of Investment Advisory Agreement – continued

than the investment advisory agreement. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund’s behalf, which may include securities lending programs, directed expense payment programs, class action recovery programs, and MFS’ interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory.

The Trustees also considered benefits to MFS from the use of the Fund’s portfolio brokerage commissions, if applicable, to pay for investment research and various other factors. Additionally, the Trustees considered so-called “fall-out benefits” to MFS such as reputational value derived from serving as investment manager to the Fund.

Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund’s investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2010.

A discussion regarding the Board’s most recent review and renewal of the fund’s Investment Advisory Agreement with MFS is available by clicking on the fund’s name under “Closed End Funds” in the “Products and Performance” section of the MFS Web site (mfs.com).

PROXY VOTING POLICIES AND INFORMATION

A general description of the MFS funds’ proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC’s Web site at http://www.sec.gov.

Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC’s Web site at http://www.sec.gov.

QUARTERLY PORTFOLIO DISCLOSURE

The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund’s Form N-Q may be reviewed and copied at the:

Public Reference Room

Securities and Exchange Commission

100 F Street, NE, Room 1580

Washington, D.C. 20549

Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund’s Form N-Q is available on the EDGAR database on the Commission’s Internet Web site at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address.

A shareholder can also obtain the quarterly portfolio holdings report at mfs.com.

FURTHER INFORMATION

From time to time, MFS may post important information about the fund or the MFS funds on the MFS web site (mfs.com). This information is available by visiting the “News & Commentary” section of mfs.com or by clicking on the fund’s name under “Closed End Funds” in the “Products and Performance” section of mfs.com.

FEDERAL TAX INFORMATION (unaudited)

The fund will notify shareholders of amounts for use in preparing 2010 income tax forms in January 2011. The following information is provided pursuant to provisions of the Internal Revenue Code.

Of the dividends paid from net investment income during the fiscal year, 99.93% is designated as exempt interest dividends for federal income tax purposes. If the fund has earned income on private activity bonds, a portion of the dividends paid may be considered a tax preference item for purposes of computing a shareholder’s alternative minimum tax.

MFS® PRIVACY NOTICE

Privacy is a concern for every investor today. At MFS Investment Management® and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries.

Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include

data from investment applications and other forms

share balances and transactional history with us, our affiliates, or others

facts from a consumer reporting agency

We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements.

Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you.

If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day.

Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours.

Transfer Agent, Registrar and Dividend Disbursing Agent

Call

1-800-637-2304

9 a.m. to 5 p.m. Eastern time

Write

Computershare Trust Company, N.A.

P.O. Box 43078

Providence, RI 02940-3078

LOGO


500 Boylston Street, Boston, MA 02116		New York Stock Exchange Symbol: CXH

ITEM 2.

CODE OF ETHICS.

The Registrant has adopted a Code of Ethics pursuant to Section 406 of the Sarbanes-Oxley Act and as defined in Form N-CSR that applies to the Registrant’s principal executive officer and principal financial and accounting officer. The Registrant has not amended any provision in its Code of Ethics (the “Code”) that relates to an element of the Code’s definitions enumerated in paragraph (b) of Item 2 of this Form N-CSR. During the period covered by this report, the Registrant did not grant a waiver, including an implicit waiver, from any provision of the Code.

ITEM 3.

AUDIT COMMITTEE FINANCIAL EXPERT.

Messrs. Robert E. Butler, John P. Kavanaugh and Robert W. Uek and Ms. Laurie J. Thomsen, members of the Audit Committee, have been determined by the Board of Trustees in their reasonable business judgment to meet the definition of “audit committee financial expert” as such term is defined in Form N-CSR. In addition, Messrs. Butler, Kavanaugh and Uek and Ms. Thomsen are “independent” members of the Audit Committee (as such term has been defined by the Securities and Exchange Commission in regulations implementing Section 407 of the Sarbanes-Oxley Act of 2002). The Securities and Exchange Commission has stated that the designation of a person as an audit committee financial expert pursuant to this Item 3 on the Form N-CSR does not impose on such a person any duties, obligations or liability that are greater than the duties, obligations or liability imposed on such person as a member of the Audit Committee and the Board of Trustees in the absence of such designation or identification.

ITEM 4.

PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Items 4(a) through 4(d) and 4(g):

The Board of Trustees has appointed Ernst & Young LLP (“E&Y”) to serve as independent accountants to the Registrant (hereinafter the “Registrant” or the “Fund”). The tables below set forth the audit fees billed to the Fund as well as fees for non-audit services provided to the Fund and/or to the Fund’s investment adviser, Massachusetts Financial Services Company (“MFS”), and to various entities either controlling, controlled by, or under common control with MFS that provide ongoing services to the Fund (“MFS Related Entities”).

For the fiscal years ended November 30, 2010 and 2009, audit fees billed to the Fund by E&Y were as follows:


	Audit Fees
	2010		2009
Fees billed by E&Y:
MFS Investment Grade Municipal Trust		49,127		48,179

For the fiscal years ended November 30, 2010 and 2009, fees billed by E&Y for audit-related, tax and other services provided to the Fund and for audit-related, tax and other services provided to MFS and MFS Related Entities were as follows:


	Audit-Related Fees¹				Tax Fees²				All Other Fees³
	2010		2009		2010		2009		2010		2009
Fees billed by E&Y:
To MFS Investment Grade Municipal Trust		10,000		10,000		9,026		8,849		0		0
To MFS and MFS Related Entities of MFS Investment Grade Municipal Trust*		0		0		0		0		0		0

	2010		2009⁴
Aggregate fees for non-audit services:
To MFS Investment Grade Municipal Trust, MFS and MFS Related Entities#		253,155		247,655

*	This amount reflects the fees billed to MFS and MFS Related Entities for non-audit services relating directly to the operations and financial reporting of the Fund (portions of which services also related to the operations and financial reporting of other funds within the MFS Funds complex).

#	This amount reflects the aggregate fees billed by E&Y for non-audit services rendered to the Fund and for non-audit services rendered to MFS and the MFS Related Entities.

The fees included under “Audit-Related Fees” are fees related to assurance and related services that are reasonably related to the performance of the audit or review of financial statements, but not reported under “Audit Fees,” including accounting consultations, agreed-upon procedure reports, attestation reports, comfort letters and internal control reviews.

²	The fees included under “Tax Fees” are fees associated with tax compliance, tax advice and tax planning, including services relating to the filing or amendment of federal, state or local income tax returns, regulated investment company qualification reviews and tax distribution and analysis.

³	The fees under “All Other Fees” are fees for products and services provided by E&Y other than those reported under “Audit Fees,” “Audit-Related Fees” and “Tax Fees”.

⁴	E&Y fees reported in 2009 have been restated in this filing from those reported in the Registrant’s filing for the reporting period ended November 30, 2009.

Item 4(e)(1):

Set forth below are the policies and procedures established by the Audit Committee of the Board of Trustees relating to the pre-approval of audit and non-audit related services:

To the extent required by applicable law, pre-approval by the Audit Committee of the Board is needed for all audit and permissible non-audit services rendered to the Fund and all permissible non-audit services rendered to MFS or MFS Related Entities if the services relate directly to the operations and financial reporting of the Registrant. Pre-approval is currently on an engagement-by-engagement basis. In the event pre-approval of such services is necessary between regular meetings of the Audit Committee and it is not practical to wait to seek pre-approval at the next regular meeting of the Audit Committee, pre-approval of such services may be referred to the Chair of the Audit Committee for approval; provided that the Chair may not pre-approve any individual engagement for such services exceeding $50,000 or multiple engagements for such services in the aggregate exceeding $100,000 between such regular meetings of the Audit Committee. Any engagement pre-approved by the Chair between regular meetings of the Audit Committee shall be presented for ratification by the entire Audit Committee at its next regularly scheduled meeting.

Item 4(e)(2):

None, or 0%, of the services relating to the Audit-Related Fees, Tax Fees and All Other Fees paid by the Fund and MFS and MFS Related Entities relating directly to the operations and financial reporting of the Registrant disclosed above were approved by the audit committee pursuant to paragraphs (c)(7)(i)(C) of Rule 2-01 of Regulation S-X (which permits audit committee approval after the start of the engagement with respect to services other than audit, review or attest services, if certain conditions are satisfied).

Item 4(f): Not applicable.

Item 4(h): The Registrant’s Audit Committee has considered whether the provision by a Registrant’s independent registered public accounting firm of non-audit services to MFS and MFS Related Entities that were not pre-approved by the Committee (because such services were provided prior to the effectiveness of SEC rules requiring pre-approval or because such services did not relate directly to the operations and financial reporting of the Registrant) was compatible with maintaining the independence of the independent registered public accounting firm as the Registrant’s principal auditors.

ITEM 5.

AUDIT COMMITTEE OF LISTED REGISTRANTS.

The Registrant has an Audit Committee established in accordance with Section 3(a)(58)(A) of the Securities Exchange Act of 1934. The members of the Audit Committee are Messrs. Robert E. Butler, John P. Kavanaugh, and Robert W. Uek and Ms. Laurie J. Thomsen.

ITEM 6.

SCHEDULE OF INVESTMENTS

A schedule of investments of the Registrant is included as part of the report to shareholders of the Registrant under Item 1 of this Form N-CSR.

ITEM 7.

DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

MASSACHUSETTS FINANCIAL SERVICES COMPANY

PROXY VOTING POLICIES AND PROCEDURES

February 1, 2010

Massachusetts Financial Services Company, MFS Institutional Advisors, Inc., MFS International (UK) Limited, MFS Heritage Trust Company, and MFS’ other subsidiaries that perform discretionary investment management activities (except Four Pillars Capital, Inc.) (collectively, “MFS”) have adopted proxy voting policies and procedures, as set forth below (“MFS Proxy Voting Policies and Procedures”), with respect to securities owned by the clients for which MFS serves as investment adviser and has the power to vote proxies, including the registered investment companies sponsored by MFS (the “MFS Funds”). References to “clients” in these policies and procedures include the MFS Funds and other clients of MFS, such as funds organized offshore, sub-advised funds and separate account clients, to the extent these clients have delegated to MFS the responsibility to vote proxies on their behalf under the MFS Proxy Voting Policies and Procedures.

The MFS Proxy Voting Policies and Procedures include:

Voting Guidelines;

Administrative Procedures;

Monitoring System;

Records Retention; and

Reports.

A.	*VOTING GUIDELINES*

General Policy; Potential Conflicts of Interest

MFS’ policy is that proxy voting decisions are made in what MFS believes to be the best long-term economic interests of MFS’ clients, and not in the interests of any other party or in MFS’ corporate interests, including interests such as the distribution of MFS Fund shares, and institutional relationships.

In developing these proxy voting guidelines, MFS reviews corporate governance issues and proxy voting matters that are presented for shareholder vote by either management or shareholders of public companies. Based on the overall

principle that all votes cast by MFS on behalf of its clients must be in what MFS believes to be the best long-term economic interests of such clients, MFS has adopted proxy voting guidelines, set forth below, that govern how MFS generally will vote on specific matters presented for shareholder vote.

As a general matter, MFS votes consistently on similar proxy proposals across all shareholder meetings. However, some proxy proposals, such as certain excessive executive compensation, environmental, social and governance matters, are analyzed on a case-by-case basis in light of all the relevant facts and circumstances of the proposal. Therefore, MFS may vote similar proposals differently at different shareholder meetings based on the specific facts and circumstances of the issuer or the terms of the proposal. In addition, MFS also reserves the right to override the guidelines with respect to a particular proxy proposal when such an override is, in MFS’ best judgment, consistent with the overall principle of voting proxies in the best long-term economic interests of MFS’ clients.

MFS also generally votes consistently on the same matter when securities of an issuer are held by multiple client accounts, unless MFS has received explicit voting instructions to vote differently from a client for its own account. From time to time, MFS may also receive comments on the MFS Proxy Voting Policies and Procedures from its clients. These comments are carefully considered by MFS when it reviews these guidelines and revises them as appropriate.

These policies and procedures are intended to address any potential material conflicts of interest on the part of MFS or its subsidiaries that are likely to arise in connection with the voting of proxies on behalf of MFS’ clients. If such potential material conflicts of interest do arise, MFS will analyze, document and report on such potential material conflicts of interest (see Sections B.2 and E below), and shall ultimately vote the relevant proxies in what MFS believes to be the best long-term economic interests of its clients. The MFS Proxy Voting Committee is responsible for monitoring and reporting with respect to such potential material conflicts of interest.

MFS is also a signatory to the United Nations Principles for Responsible Investment. In developing these guidelines, MFS considered environmental, social and corporate governance issues in light of MFS’ fiduciary obligation to vote proxies in the best long-term economic interest of its clients.

MFS’ Policy on Specific Issues

Election of Directors

MFS believes that good governance should be based on a board with at least a simple majority of directors who are “independent” of management, and whose key committees (e.g., compensation, nominating, and audit committees) are comprised entirely of “independent” directors. While MFS generally supports the board’s nominees in uncontested elections, we will not support a nominee to a board of a U.S. issuer if, as a result of such nominee being elected to the board, the board would be comprised of a majority of members who are not “independent” or, alternatively, the compensation, nominating (including instances in which the full board serves as the nominating committee) or audit committees would include members who are not “independent.”

MFS will also not support a nominee to a board if we can determine that he or she failed to attend at least 75% of the board and/or relevant committee meetings in the previous year without a valid reason stated in the proxy materials or other company communications. In addition, MFS will not support all nominees standing for re-election to a board if we can determine: (1) since the last annual meeting of shareholders and without shareholder approval, the board or its compensation committee has re-priced or exchanged underwater stock options; or (2) since the last annual meeting, the board has either implemented a poison pill without shareholder approval (including those related to net-operating loss carryforwards), or has not taken responsive action to a majority shareholder approved resolution recommending that the poison pill be rescinded. Responsive action would include the rescission of the “poison pill” (without a broad reservation to reinstate the “poison pill” in the event of a hostile tender offer), or assurance in the proxy materials that the terms of the “poison pill” would be put to a binding shareholder vote within the next five to seven years.

MFS will also not support a nominee (other than a nominee who serves as the issuer’s Chief Executive Officer) standing for re-election if such nominee participated (as a director or committee member) in the approval of senior executive compensation that MFS deems to be “excessive” due to pay for performance issues and/or poor pay practices. In the event that MFS determines that an issuer has adopted “excessive” executive compensation, MFS may also not support the re-election of the issuer’s Chief Executive Officer as director regardless of whether the Chief Executive Officer directly participated in the approval of the package. MFS will determine whether senior executive compensation is excessive on a case-by-case basis. Examples of excessive executive compensation practices may include, but are not limited to, a pay-for-performance disconnect, egregious employment contract terms such as guaranteed bonus provisions, excessive pension payouts, backdated stock options, overly generous hiring bonuses for chief executive officers, excessive perquisites, or the potential reimbursement of excise taxes to an executive in regards to a severance package.

MFS evaluates a contested or contentious election of directors on a case-by-case basis considering the long-term financial performance of the company relative to its industry, management’s track record, the qualifications of

the nominees for both slates, if applicable, and an evaluation of what each side is offering shareholders.

Majority Voting and Director Elections

MFS votes for reasonably crafted proposals calling for directors to be elected with an affirmative majority of votes cast and/or the elimination of the plurality standard for electing directors (including binding resolutions requesting that the board amend the company’s bylaws), provided the proposal includes a carve-out for a plurality voting standard when there are more director nominees than board seats (e.g., contested elections) (“Majority Vote Proposals”). MFS considers voting against Majority Vote Proposals if the company has adopted, or has proposed to adopt in the proxy statement, formal corporate governance principles that present a meaningful alternative to the majority voting standard and provide an adequate response to both new nominees as well as incumbent nominees who fail to receive a majority of votes cast. MFS believes that a company’s election policy should address the specific circumstances at that company. In determining whether the issuer has a meaningful alternative to the majority voting standard, MFS considers whether a company’s election policy articulates the following elements to address each director nominee who fails to receive an affirmative majority of votes cast in an election:

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Establish guidelines for the process by which the company determines the status of nominees who fail to receive an affirmative majority of votes cast and disclose the guidelines in the annual proxy statement;

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Guidelines should include a reasonable timetable for resolution of the nominee’s status and a requirement that the resolution be disclosed together with the reasons for the resolution;

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Vest management of the process in the company’s independent directors, other than the nominee in question; and

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Outline the range of remedies that the independent directors may consider concerning the nominee.

Classified Boards

MFS generally opposes proposals to classify a board (e.g. a board in which only one-third of board members is elected each year) for issuers (other than for certain closed-end investment companies). MFS generally supports proposals to declassify a board for issuers (other than for certain closed-end investment companies).

Non-Salary Compensation Programs

MFS votes against stock option programs for officers, employees or non-employee directors that do not require an investment by the optionee, that give “free rides” on the stock price, or that permit grants of stock options with an exercise price below fair market value on the date the options are granted.

MFS also opposes stock option programs that allow the board or the compensation committee, without shareholder approval, to re-price underwater options or to automatically replenish shares (i.e. evergreen plans). MFS will consider proposals to exchange existing options for newly issued options, restricted stock or cash on a case-by-case basis, taking into account certain factors, including, but not limited to, whether there is a reasonable value-for-value exchange and whether senior executives are excluded from participating in the exchange.

MFS opposes stock option programs and restricted stock plans that provide unduly generous compensation for officers, directors or employees, or could result in excessive dilution to other shareholders. As a general guideline, MFS votes against restricted stock plans, stock option, non-employee director, omnibus stock plans and any other stock plan if all such plans for a particular company involve potential dilution, in the aggregate, of more than 15%. However, MFS will also vote against stock plans that involve potential dilution, in aggregate, of more than 10% at U.S. issuers that are listed in the Standard and Poor’s 100 index as of December 31 of the previous year.

Expensing of Stock Options

MFS supports shareholder proposals to expense stock options because we believe that the expensing of options presents a more accurate picture of the company’s financial results to investors. We also believe that companies are likely to be more disciplined when granting options if the value of stock options were treated as an expense item on the company’s income statements.

Executive Compensation

MFS believes that competitive compensation packages are necessary to attract, motivate and retain executives. However, MFS also recognizes that certain executive compensation practices can be “excessive” and not in the best, long-term economic interest of a company’s shareholders. We believe that the election of an issuer’s compensation committee members and votes on stock plans (as outlined above) are currently the most effective mechanisms to express our view on a company’s compensation practices.

MFS also supports reasonably crafted shareholder proposals that (i) require the issuer to adopt a policy to recover the portion of performance-based bonuses and awards paid to senior executives that were not earned based upon a significant negative restatement of earnings unless the company already has adopted a satisfactory policy on the matter, or (ii) expressly prohibit the backdating of stock

options. Although we support linking executive stock option grants to a company’s performance, MFS opposes shareholder proposals that mandate a link of performance-based options to a specific industry or peer group stock index. MFS also opposes shareholder proposals that seek to set rigid restrictions on executive compensation as MFS believes that compensation committees should retain some flexibility to propose the appropriate index or other criteria by which performance-based options should be measured.

Advisory Votes on Executive Compensation

MFS supports reasonably crafted shareholder proposals to include an advisory shareholder vote on an issuer’s executive compensation practices in the issuer’s proxy statement.

For a U.S. issuer that already includes an advisory vote on its executive compensation practices in its proxy statement, MFS will generally support the issuer’s advisory vote, unless MFS has determined that issuer has adopted excessive executive compensation practices.

Employee Stock Purchase Plans

MFS supports the use of a broad-based employee stock purchase plans to increase company stock ownership by employees, provided that shares purchased under the plan are acquired for no less than 85% of their market value and do not result in excessive dilution.

“Golden Parachutes”

From time to time, shareholders of companies have submitted proxy proposals that would require shareholder approval of severance packages for executive officers that exceed certain predetermined thresholds. MFS votes in favor of such shareholder proposals when they would require shareholder approval of any severance package for an executive officer that exceeds a certain multiple of such officer’s annual compensation that is not determined in MFS’ judgment to be excessive.

Anti-Takeover Measures

In general, MFS votes against any measure that inhibits capital appreciation in a stock, including proposals that protect management from action by shareholders. These types of proposals take many forms, ranging from “poison pills” and “shark repellents” to super-majority requirements.

MFS generally votes for proposals to rescind existing “poison pills” and proposals that would require shareholder approval to adopt prospective “poison pills,” unless the company already has adopted a clearly satisfactory policy on the

matter. MFS may consider the adoption of a prospective “poison pill” or the continuation of an existing “poison pill” if we can determine that the following two conditions are met: (1) the “poison pill” allows MFS clients to hold an aggregate position of up to 15% of a company’s total voting securities (and of any class of voting securities); and (2) either (a) the “poison pill” has a term of not longer than five years, provided that MFS will consider voting in favor of the “poison pill” if the term does not exceed seven years and the “poison pill” is linked to a business strategy or purpose that MFS believes is likely to result in greater value for shareholders; or (b) the terms of the “poison pill” allow MFS clients the opportunity to accept a fairly structured and attractively priced tender offer (e.g. a “chewable poison pill” that automatically dissolves in the event of an all cash, all shares tender offer at a premium price). MFS will also consider on a case-by-case basis proposals designed to prevent tenders which are disadvantageous to shareholders such as tenders at below market prices and tenders for substantially less than all shares of an issuer.

MFS will consider any poison pills designed to protect a company’s net-operating loss carryforwards on a case-by-case basis, weighing the accounting and tax benefits of such a pill against the risk of deterring future acquisition candidates.

Reincorporation and Reorganization Proposals

When presented with a proposal to reincorporate a company under the laws of a different state, or to effect some other type of corporate reorganization, MFS considers the underlying purpose and ultimate effect of such a proposal in determining whether or not to support such a measure. MFS generally votes with management in regards to these types of proposals, however, if MFS believes the proposal is in the best long-term economic interests of its clients, then MFS may vote against management (e.g. the intent or effect would be to create additional inappropriate impediments to possible acquisitions or takeovers).

Issuance of Stock

There are many legitimate reasons for the issuance of stock. Nevertheless, as noted above under “Non-Salary Compensation Programs,” when a stock option plan (either individually or when aggregated with other plans of the same company) would substantially dilute the existing equity (e.g. by approximately 10-15% as described above), MFS generally votes against the plan. In addition, MFS typically votes against proposals where management is asking for authorization to issue common or preferred stock with no reason stated (a “blank check”) because the unexplained authorization could work as a potential anti-takeover device. MFS may also vote against the authorization or issuance of common or preferred stock if MFS determines that the requested authorization is excessive and not warranted.

Repurchase Programs

MFS supports proposals to institute share repurchase plans in which all shareholders have the opportunity to participate on an equal basis. Such plans may include a company acquiring its own shares on the open market, or a company making a tender offer to its own shareholders.

Confidential Voting

MFS votes in favor of proposals to ensure that shareholder voting results are kept confidential. For example, MFS supports proposals that would prevent management from having access to shareholder voting information that is compiled by an independent proxy tabulation firm.

Cumulative Voting

MFS opposes proposals that seek to introduce cumulative voting and for proposals that seek to eliminate cumulative voting. In either case, MFS will consider whether cumulative voting is likely to enhance the interests of MFS’ clients as minority shareholders. In our view, shareholders should provide names of qualified candidates to a company’s nominating committee, which, in our view, should be comprised solely of “independent” directors.

Written Consent and Special Meetings

Because the shareholder right to act by written consent (without calling a formal meeting of shareholders) can be a powerful tool for shareholders, MFS generally opposes proposals that would prevent shareholders from taking action without a formal meeting or would take away a shareholder’s right to call a special meeting of company shareholders pursuant to relevant state law.

Independent Auditors

MFS believes that the appointment of auditors for U.S. issuers is best left to the board of directors of the company and therefore supports the ratification of the board’s selection of an auditor for the company. Some shareholder groups have submitted proposals to limit the non-audit activities of a company’s audit firm or prohibit any non-audit services by a company’s auditors to that company. MFS opposes proposals recommending the prohibition or limitation of the performance of non-audit services by an auditor, and proposals recommending the removal of a company’s auditor due to the performance of non-audit work for the company by its auditor. MFS believes that the board, or its audit committee, should have the discretion to hire the company’s auditor for specific pieces of non-audit work in the limited situations permitted under current law.

Environmental, Social and Governance (“ESG”) Issues

MFS believes that a company’s ESG practices may have an impact on the company’s long-term economic financial performance and will generally support proposals relating to ESG issues that MFS believes are in the best long-term economic interest of the company’s shareholders. For those ESG proposals for which a specific policy has not been adopted, MFS considers such ESG proposals on a case-by-case basis. As a result, it may vote similar proposals differently at various shareholder meetings based on the specific facts and circumstances of such proposal.

MFS generally supports proposals that seek to remove governance structures that insulate management from shareholders (i.e., anti-takeover measures) or that seek to enhance shareholder rights. Many of these governance-related issues, including compensation issues, are outlined within the context of the above guidelines. In addition, MFS typically supports proposals that require an issuer to reimburse successful dissident shareholders (who are not seeking control of the company) for reasonable expenses that such dissident incurred in soliciting an alternative slate of director candidates. MFS typically does not support proposals to separate the chairman and CEO positions as we believe that the most beneficial leadership structure of a company should be determined by the company’s board of directors. For any governance-related proposal for which an explicit guideline is not provided above, MFS will consider such proposals on a case-by-case basis and will support such proposals if MFS believes that it is in the best long-term economic interest of the company’s shareholders.

MFS generally supports proposals that request disclosure on the impact of environmental issues on the company’s operations, sales, and capital investments. However, MFS may not support such proposals based on the facts and circumstances surrounding a specific proposal, including, but not limited to, whether (i) the proposal is unduly costly, restrictive, or burdensome, (ii) the company already provides publicly-available information that is sufficient to enable shareholders to evaluate the potential opportunities and risks that environmental matters pose to the company’s operations, sales and capital investments, or (iii) the proposal seeks a level of disclosure that exceeds that provided by the company’s industry peers. MFS will analyze all other environmental proposals on a case-by-case basis and will support such proposals if MFS believes such proposal is in the best long-term economic interest of the company’s shareholders.

MFS will analyze social proposals on a case-by-case basis. MFS will support such proposals if MFS believes that such proposal is in the best long-term economic interest of the company’s shareholders. Generally, MFS will support shareholder proposals that (i) seek to amend a company’s equal employment opportunity policy to prohibit discrimination based on sexual orientation and

gender identity; and (ii) request additional disclosure regarding a company’s political contributions.

The laws of various states or countries may regulate how the interests of certain clients subject to those laws (e.g. state pension plans) are voted with respect to social issues. Thus, it may be necessary to cast ballots differently for certain clients than MFS might normally do for other clients.

Foreign Issuers

MFS generally supports the election of a director nominee standing for re-election in uncontested elections unless it can be determined that (1) he or she failed to attend at least 75% of the board and/or relevant committee meetings in the previous year without a valid reason given in the proxy materials; (2) since the last annual meeting of shareholders and without shareholder approval, the board or its compensation committee has re-priced underwater stock options; or (3) since the last annual meeting, the board has either implemented a poison pill without shareholder approval or has not taken responsive action to a majority shareholder approved resolution recommending that the “poison pill” be rescinded. MFS generally supports the election of auditors, but may determine to vote against the election of a statutory auditor in certain markets if MFS reasonably believes that the statutory auditor is not truly independent.

Some international markets have adopted mandatory requirements for all companies to hold advisory votes on executive compensation. MFS will not support such proposals if MFS determines that a company’s executive compensation practices are excessive, considering such factors as the specific market’s best practices that seek to maintain appropriate pay-for-performance alignment and to create long-term shareholder value.

Many other items on foreign proxies involve repetitive, non-controversial matters that are mandated by local law. Accordingly, the items that are generally deemed routine and which do not require the exercise of judgment under these guidelines (and therefore voted with management) for foreign issuers include, but are not limited to, the following: (i) receiving financial statements or other reports from the board; (ii) approval of declarations of dividends; (iii) appointment of shareholders to sign board meeting minutes; (iv) discharge of management and supervisory boards; and (v) approval of share repurchase programs (absent any anti-takeover concerns). MFS will evaluate all other items on proxies for foreign companies in the context of the guidelines described above, but will generally vote against an item if there is not sufficient information disclosed in order to make an informed voting decision.

In accordance with local law or business practices, many foreign companies or custodians prevent the sales of shares that have been voted for a certain period beginning prior to the shareholder meeting and ending on the day following the

meeting (“share blocking”). Depending on the country in which a company is domiciled, the blocking period may begin a stated number of days prior or subsequent to the meeting (e.g. one, three or five days) or on a date established by the company. While practices vary, in many countries the block period can be continued for a longer period if the shareholder meeting is adjourned and postponed to a later date. Similarly, practices vary widely as to the ability of a shareholder to have the “block” restriction lifted early (e.g. in some countries shares generally can be “unblocked” up to two days prior to the meeting whereas in other countries the removal of the block appears to be discretionary with the issuer’s transfer agent). Due to these restrictions, MFS must balance the benefits to its clients of voting proxies against the potentially serious portfolio management consequences of a reduced flexibility to sell the underlying shares at the most advantageous time. For companies in countries with share blocking periods or in markets where some custodians may block shares, the disadvantage of being unable to sell the stock regardless of changing conditions generally outweighs the advantages of voting at the shareholder meeting for routine items. Accordingly, MFS will not vote those proxies in the absence of an unusual, significant vote that outweighs the disadvantage of being unable to sell the stock.

In limited circumstances, other market specific impediments to voting shares may limit our ability to cast votes, including, but not limited to, late delivery of proxy materials, power of attorney and share re-registration requirements, or any other unusual voting requirements. In these limited instances, MFS votes securities on a best efforts basis in the context of the guidelines described above.

B.	*ADMINISTRATIVE PROCEDURES*

MFS Proxy Voting Committee

The administration of these MFS Proxy Voting Policies and Procedures is overseen by the MFS Proxy Voting Committee, which includes senior personnel from the MFS Legal and Global Investment Support Departments. The Proxy Voting Committee does not include individuals whose primary duties relate to client relationship management, marketing, or sales. The MFS Proxy Voting Committee:

Reviews these MFS Proxy Voting Policies and Procedures at least annually and recommends any amendments considered to be necessary or advisable;

Determines whether any potential material conflict of interest exists with respect to instances in which MFS (i) seeks to override these MFS Proxy Voting Policies and Procedures; (ii) votes on ballot items not governed by these MFS Proxy Voting Policies and Procedures; (iii) evaluates an excessive executive compensation issue in relation to the election of directors; or (iv) requests a vote recommendation from an

MFS portfolio manager or investment analyst (e.g. mergers and acquisitions); and

Considers special proxy issues as they may arise from time to time.

Potential Conflicts of Interest

The MFS Proxy Voting Committee is responsible for monitoring potential material conflicts of interest on the part of MFS or its subsidiaries that could arise in connection with the voting of proxies on behalf of MFS’ clients. Due to the client focus of our investment management business, we believe that the potential for actual material conflict of interest issues is small. Nonetheless, we have developed precautions to assure that all proxy votes are cast in the best long-term economic interest of shareholders. Other MFS internal policies require all MFS employees to avoid actual and potential conflicts of interests between personal activities and MFS’ client activities. If an employee identifies an actual or potential conflict of interest with respect to any voting decision, then that employee must recuse himself/herself from participating in the voting process. Additionally, with respect to decisions concerning all Non-Standard Votes, as defined below, MFS will review the securities holdings reported by the individuals that participate in such decision to determine whether such person has a direct economic interest in the decision, in which case such person shall not further participate in making the decision. Any significant attempt by an employee of MFS or its subsidiaries to influence MFS’ voting on a particular proxy matter should also be reported to the MFS Proxy Voting Committee.

In cases where proxies are voted in accordance with these MFS Proxy Voting Policies and Procedures, no material conflict of interest will be deemed to exist. In cases where (i) MFS is considering overriding these MFS Proxy Voting Policies and Procedures, (ii) matters presented for vote are not governed by these MFS Proxy Voting Policies and Procedures, (iii) MFS evaluates an excessive executive compensation issue in relation to the election of directors, or (iv) a vote recommendation is requested from an MFS portfolio manager or investment analyst (e.g. mergers and acquisitions) (collectively, “Non-Standard Votes”); the MFS Proxy Voting Committee will follow these procedures:

Compare the name of the issuer of such proxy against a list of significant current (i) distributors of MFS Fund shares, and (ii) MFS institutional clients (the “MFS Significant Client List”);

If the name of the issuer does not appear on the MFS Significant Client List, then no material conflict of interest will be deemed to exist, and the proxy will be voted as otherwise determined by the MFS Proxy Voting Committee;

If the name of the issuer appears on the MFS Significant Client List, then the MFS Proxy Voting Committee will be apprised of that fact and each member of the MFS Proxy Voting Committee will carefully evaluate the proposed vote in order to ensure that the proxy ultimately is voted in what MFS believes to be the best long-term economic interests of MFS’ clients, and not in MFS’ corporate interests; and

For all potential material conflicts of interest identified under clause (c) above, the MFS Proxy Voting Committee will document: the name of the issuer, the issuer’s relationship to MFS, the analysis of the matters submitted for proxy vote, the votes as to be cast and the reasons why the MFS Proxy Voting Committee determined that the votes were cast in the best long-term economic interests of MFS’ clients, and not in MFS’ corporate interests. A copy of the foregoing documentation will be provided to MFS’ Conflicts Officer.

The members of the MFS Proxy Voting Committee are responsible for creating and maintaining the MFS Significant Client List, in consultation with MFS’ distribution and institutional business units. The MFS Significant Client List will be reviewed and updated periodically, as appropriate.

From time to time, certain MFS Funds (the “top tier fund”) may own shares of other MFS Funds (the “underlying fund”). If an underlying fund submits a matter to a shareholder vote, the top tier fund will generally vote its shares in the same proportion as the other shareholders of the underlying fund.

Gathering Proxies

Most proxies received by MFS and its clients originate at Broadridge Financial Solutions, Inc. (“Broadridge”). Broadridge and other service providers, on behalf of custodians, send proxy related material to the record holders of the shares beneficially owned by MFS’ clients, usually to the client’s proxy voting administrator or, less commonly, to the client itself. This material will include proxy ballots reflecting the shareholdings of Funds and of clients on the record dates for such shareholder meetings, as well as proxy materials with the issuer’s explanation of the items to be voted upon.

MFS, on behalf of itself and the Funds, has entered into an agreement with an independent proxy administration firm, RiskMetrics Group, Inc., (the “Proxy Administrator”), pursuant to which the Proxy Administrator performs various proxy vote related administrative services, such as vote processing and recordkeeping functions for MFS’ Funds and institutional client accounts. The

Proxy Administrator receives proxy statements and proxy ballots directly or indirectly from various custodians, logs these materials into its database and matches upcoming meetings with MFS Fund and client portfolio holdings, which are input into the Proxy Administrator’s system by an MFS holdings data-feed. Through the use of the Proxy Administrator system, ballots and proxy material summaries for all upcoming shareholders’ meetings are available on-line to certain MFS employees and members of the MFS Proxy Voting Committee.

Analyzing Proxies

Proxies are voted in accordance with these MFS Proxy Voting Policies and Procedures. The Proxy Administrator, at the prior direction of MFS, automatically votes all proxy matters that do not require the particular exercise of discretion or judgment with respect to these MFS Proxy Voting Policies and Procedures as determined by the MFS Proxy Voting Committee. With respect to proxy matters that require the particular exercise of discretion or judgment, MFS considers and votes on those proxy matters. MFS also receives research and recommendations from the Proxy Administrator which it may take into account in deciding how to vote. In addition, MFS expects to rely on the Proxy Administrator to identify circumstances in which a board may have approved excessive executive compensation or whether certain environmental or social proposals warrant consideration. Representatives of the MFS Proxy Voting Committee review, as appropriate, votes cast to ensure conformity with these MFS Proxy Voting Policies and Procedures.

As a general matter, portfolio managers and investment analysts have little or no involvement in specific votes taken by MFS. This is designed to promote consistency in the application of MFS’ voting guidelines, to promote consistency in voting on the same or similar issues (for the same or for multiple issuers) across all client accounts, and to minimize the potential that proxy solicitors, issuers, or third parties might attempt to exert inappropriate influence on the vote. In limited types of votes (e.g. corporate actions, such as mergers and acquisitions, or shareholder proposals relating to environmental and social issues), a representative of MFS Proxy Voting Committee may consult with or seek recommendations from MFS portfolio managers or investment analysts.¹ However, the MFS Proxy Voting Committee would ultimately determine the manner in which all proxies are voted.

As noted above, MFS reserves the right to override the guidelines when such an override is, in MFS’ best judgment, consistent with the overall principle of voting proxies in the best long-term economic interests of MFS’ clients. Any such

From time to time, due to travel schedules and other commitments, an appropriate portfolio manager or research analyst may not be available to provide a recommendation on a merger or acquisition proposal. If such a recommendation cannot be obtained prior to the cut-off date of the shareholder meeting, certain members of the MFS Proxy Voting Committee may determine to abstain from voting.

override of the guidelines shall be analyzed, documented and reported in accordance with the procedures set forth in these policies.

Voting Proxies

In accordance with its contract with MFS, the Proxy Administrator also generates a variety of reports for the MFS Proxy Voting Committee, and makes available on-line various other types of information so that the MFS Proxy Voting Committee may review and monitor the votes cast by the Proxy Administrator on behalf of MFS’ clients.

Securities Lending

From time to time, the MFS Funds or other pooled investment vehicles sponsored by MFS may participate in a securities lending program. In the event MFS or its agent receives timely notice of a shareholder meeting for a U.S. security, MFS and its agent will attempt to recall any securities on loan before the meeting’s record date so that MFS will be entitled to vote these shares. However, there may be instances in which MFS is unable to timely recall securities on loan for a U.S. security, in which cases MFS will not be able to vote these shares. MFS will report to the appropriate board of the MFS Funds those instances in which MFS is not able to timely recall the loaned securities. MFS generally does not recall non-U.S. securities on loan because there may be insufficient advance notice of proxy materials, record dates, or vote cut-off dates to allow MFS to timely recall the shares in certain markets. As a result, non-U.S. securities that are on loan will not generally be voted. If MFS receives timely notice of what MFS determines to be an unusual, significant vote for a non-U.S. security whereas MFS shares are on loan, and determines that voting is in the best long-term economic interest of shareholders, then MFS will attempt to timely recall the loaned shares.

Engagement

The MFS Proxy Voting Policies and Procedures are available on www.mfs.com and may be accessed by both MFS’ clients and the companies in which MFS’ clients invest. From time to time, MFS may determine that it is appropriate and beneficial for representatives from the MFS Proxy Voting Committee to engage in a dialogue with a company or other shareholder regarding certain matters on the company’s proxy statement that are of concern to shareholders, including environmental, social and governance matters. A company or shareholder may also seek to engage with representatives of the MFS Proxy Voting Committee in advance of the company’s formal proxy solicitation to solicit support for certain contemplated proposals.

C.	*MONITORING SYSTEM*

It is the responsibility of the Proxy Administrator and MFS’ Proxy Voting Committee to monitor the proxy voting process. When proxy materials for clients are received by the Proxy Administrator, they are input into the Proxy Administrator’s system. Through an interface with the portfolio holdings database of MFS, the Proxy Administrator matches a list of all MFS Funds and clients who hold shares of a company’s stock and the number of shares held on the record date with the Proxy Administrator’s listing of any upcoming shareholder’s meeting of that company.

When the Proxy Administrator’s system “tickler” shows that the voting cut-off date of a shareholders’ meeting is approaching, a Proxy Administrator representative checks that the vote for MFS Funds and clients holding that security has been recorded in the computer system. If a proxy ballot has not been received from the client’s custodian, the Proxy Administrator contacts the custodian requesting that the materials be forwarded immediately. If it is not possible to receive the proxy ballot from the custodian in time to be voted at the meeting, then MFS may instruct the custodian to cast the vote in the manner specified and to mail the proxy directly to the issuer.

D.	*RECORDS RETENTION*

MFS will retain copies of these MFS Proxy Voting Policies and Procedures in effect from time to time and will retain all proxy voting reports submitted to the Board of Trustees and Board of Managers of the MFS Funds for the period required by applicable law. Proxy solicitation materials, including electronic versions of the proxy ballots completed by representatives of the MFS Proxy Voting Committee, together with their respective notes and comments, are maintained in an electronic format by the Proxy Administrator and are accessible on-line by the MFS Proxy Voting Committee. All proxy voting materials and supporting documentation, including records generated by the Proxy Administrator’s system as to proxies processed, including the dates when proxy ballots were received and submitted, and the votes on each company’s proxy issues, are retained as required by applicable law.

E.	*REPORTS*

MFS Funds

MFS publicly discloses the proxy voting records of the MFS Funds on an annual basis, as required by law. MFS will also report the results of its voting to the Board of Trustees and Board of Managers of the MFS Funds. These reports will include: (i) a summary of how votes were cast; (ii) a summary of votes against management’s recommendation; (iii) a review of situations where MFS did not vote in accordance with the guidelines and the rationale therefore; (iv) a review of the procedures used by MFS to identify material conflicts of interest and any

matters identified as a material conflict of interest; (v) a review of these policies and the guidelines; (vi) a report and impact assessment of instances in which the recall of loaned securities of a U.S. issuer was unsuccessful; and (vii) as necessary or appropriate, any proposed modifications thereto to reflect new developments in corporate governance and other issues. Based on these reviews, the Trustees and Managers of the MFS Funds will consider possible modifications to these policies to the extent necessary or advisable.

All MFS Advisory Clients

At any time, a report can be printed by MFS for each client who has requested that MFS furnish a record of votes cast. The report specifies the proxy issues which have been voted for the client during the year and the position taken with respect to each issue and, upon request, may identify situations where MFS did not vote in accordance with the MFS Proxy Voting Policies and Procedures.

Except as described above, MFS generally will not divulge actual voting practices to any party other than the client or its representatives (unless required by applicable law) because we consider that information to be confidential and proprietary to the client. However, as noted above, MFS may determine that it is appropriate and beneficial to engage in a dialogue with a company regarding certain matters. During such dialogue with the company, MFS may disclose the vote it intends to cast in order to potentially effect positive change at a company in regards to environmental, social or governance issues.

ITEM 8.

PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

General. Information regarding the portfolio manager(s) of the MFS Investment Grade Municipal Trust (the “Fund”) is set forth below.


Portfolio Manager	Primary Role	Since	Title and Five Year History
Michael L. Dawson	Portfolio Manager	2007	Investment Officer of MFS; employed in the investment area of MFS since 1998.

Geoffrey L. Schechter	Portfolio Manager	2007	Investment Officer of MFS; employed in the investment area of MFS since 1993.

Compensation. Portfolio manager compensation is reviewed annually. As of December 31, 2009, portfolio manager total cash compensation is a combination of base salary and performance bonus:

Base Salary – Base salary represents a smaller percentage of portfolio manager total cash compensation than performance bonus.

Performance Bonus – Generally, the performance bonus represents more than a majority of portfolio manager total cash compensation.

The performance bonus is based on a combination of quantitative and qualitative factors, generally with more weight given to the former and less weight given to the latter.

The quantitative portion is based on the pre-tax performance of assets managed by the portfolio manager over one-, three-, and five-year periods relative to peer group universes and/or indices (“benchmarks”). As of December 31, 2009, the following benchmarks were used:


Portfolio Manager		Benchmark(s)
Michael L. Dawson		Lipper Other States Municipal Debt Funds
		Lipper California Municipal Debt Funds
		Lipper Florida Municipal Debt Funds
		Lipper Georgia Municipal Debt Funds
		Lipper Massachusetts Municipal Debt Funds
		Lipper Maryland Municipal Debt Funds
		Lipper North Carolina Municipal Debt Funds
		Lipper New York Municipal Debt Funds
		Lipper Pennsylvania Municipal Debt Funds
		Lipper Virginia Municipal Debt Funds
		Barclays Capital Municipal Bond Index

Geoffrey L. Schechter		Lipper General Municipal Funds
		Lipper Short-Intermediate Municipal Funds
		Lipper High Yield Municipal Funds
		Lipper General US Government Funds
		Barclays Capital Municipal Bond Index
		Barclays Capital U.S. Government/Mortgage Bond Index
		Morningstar Dollar Government Bond Funds
		Lipper Variable Annuity General U.S. Government Funds

Additional or different benchmarks, including versions of indices and custom indices may also be used. Primary weight is given to portfolio performance over a three-year time period with lesser consideration given to portfolio performance over one-year and

five-year periods (adjusted as appropriate if the portfolio manager has served for less than five years).

The qualitative portion is based on the results of an annual internal peer review process (conducted by other portfolio managers, analysts, and traders) and management’s assessment of overall portfolio manager contributions to investor relations and the investment process (distinct from fund and other account performance).

Portfolio managers also typically benefit from the opportunity to participate in the MFS Equity Plan. Equity interests and/or options to acquire equity interests in MFS or its parent company are awarded by management, on a discretionary basis, taking into account tenure at MFS, contribution to the investment process, and other factors.

Finally, portfolio managers also participate in benefit plans (including a defined contribution plan and health and other insurance plans) and programs available generally to other employees of MFS. The percentage such benefits represent of any portfolio manager’s compensation depends upon the length of the individual’s tenure at MFS and salary level, as well as other factors.

Ownership of Fund Shares. The following table shows the dollar range of equity securities of the Fund beneficially owned by the Fund’s portfolio manager(s) as of the fund’s fiscal year ended November 30, 2010. The following dollar ranges apply:

N. None

A. $1 - $10,000

B. $10,001 - $50,000

C. $50,001 - $100,000

D. $100,001 - $500,000

E. $500,001 - $1,000,000

F. Over $1,000,000


Name of Portfolio Manager		Dollar Range of Equity Securities in Fund
Michael L. Dawson		N
Geoffrey L. Schechter		N

Other Accounts. In addition to the Fund, the Fund’s portfolio manager is named as a portfolio manager of certain other accounts managed or subadvised by MFS or an affiliate, the number and assets of which, as of the fund’s fiscal year ended November 30, 2010

Registered Investment
Companies

Other Pooled Investment
Vehicles

Other Accounts

Name

Number of
Accounts*

Total Assets*

Number of
Accounts

Total Assets

Number of
Accounts

Total Assets

Michael L. Dawson

3.1 billion

N/A

Geoffrey L. Schechter

8.5 billion

490.5 million

N/A

*	Includes the Fund.

Advisory fees are not based upon performance of any of the accounts identified in the table above.

Potential Conflicts of Interest. The Adviser seeks to identify potential conflicts of interest resulting from a portfolio manager’s management of both the Fund and other accounts, and has adopted policies and procedures designed to address such potential conflicts.

The management of multiple funds and accounts (including proprietary accounts) gives rise to potential conflicts of interest if the funds and accounts have different objectives and strategies, benchmarks, time horizons and fees as a portfolio manager must allocate his or her time and investment ideas across multiple funds and accounts. In certain instances there are securities which are suitable for the Fund’s portfolio as well as for accounts of the Adviser or its subsidiaries with similar investment objectives. A Fund’s trade allocation policies may give rise to conflicts of interest if the Fund’s orders do not get fully executed or are delayed in getting executed due to being aggregated with those of other accounts of the Adviser or its subsidiaries. A portfolio manager may execute transactions for another fund or account that may adversely affect the value of the Fund’s investments. Investments selected for funds or accounts other than the Fund may outperform investments selected for the Fund.

When two or more clients are simultaneously engaged in the purchase or sale of the same security, the securities are allocated among clients in a manner believed by the Adviser to be fair and equitable to each. It is recognized that in some cases this system could have a detrimental effect on the price or volume of the security as far as the Fund is concerned. In most cases, however, the Adviser believes that the Fund’s ability to participate in volume transactions will produce better executions for the Fund.

The Adviser and/or a portfolio manager may have a financial incentive to allocate favorable or limited opportunity investments or structure the timing of investments to favor accounts other than the Fund, for instance, those that pay a higher advisory fee and/or have a performance adjustment.

ITEM 9.

PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

MFS Investment Grade Municipal Trust


Period	(a) Total number of Shares Purchased		(b) Average Price Paid per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased under the Plans or Programs
12/01/09-12/31/09		0		N/A		0		1,150,900
1/01/10-1/31/10		0		N/A		0		1,150,900
2/01/10-2/28/10		0		N/A		0		1,150,900
3/01/10-3/31/10		0		N/A		0		1,150,900
4/01/10-4/30/10		0		N/A		0		1,150,900
5/01/10-5/31/10		0		N/A		0		1,150,900
6/01/10-6/30/10		0		N/A		0		1,150,900
7/01/10-7/31/10		0		N/A		0		1,150,900
8/01/10-8/31/10		0		N/A		0		1,150,900
9/01/10-9/30/10		0		N/A		0		1,150,900
10/01/10-10/31/10		0		N/A		0		1,150,900
11/01/10-11/30/10		0		N/A		0		1,150,900

*Total*		0				0

Note: The Board of Trustees approves procedures to repurchase shares annually. The notification to shareholders of the program is part of the semi-annual and annual reports sent to shareholders. These annual programs begin on March 1^st of each year. The programs conform to the conditions of Rule 10b-18 of the securities Exchange Act of 1934 and limit the aggregate number of shares that may be purchased in each annual period (March 1 through the following February 28) to 10% of the Registrant’s outstanding shares as of the first day of the plan year (March 1). The aggregate number of shares available for purchase for the March 1, 2010 plan year is 1,150,900.

ITEM 10.

SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There were no material changes to the procedures by which shareholders may send recommendations to the Board for nominees to the Registrant’s Board since the Registrant last provided disclosure as to such procedures in response to the requirements of Item 407(c)(2)(iv) of Regulation S-K or this Item.

ITEM 11.

CONTROLS AND PROCEDURES.

(a)

Based upon their evaluation of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this Form N-CSR, the registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

(b)

There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the second fiscal quarter covered by the report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

ITEM 12.

EXHIBITS.

(a)	File the exhibits listed below as part of this form. Letter or number the exhibits in the sequence indicated.

(1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit: Code of Ethics attached hereto.

(2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.

(3)Any written solicitation to purchase securities under Rule 23c-1 under the Act sent or given during the period covered by the report by or on behalf of the Registrant to 10 or more persons. Not applicable.

(b)

If the report is filed under Section 13(a) or 15(d) of the Exchange Act, provide the certifications required by Rule 30a-2(b) under the Act (17 CFR 270.30a-2(b)), Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act (17 CFR 240.13a-14(b) or 240.15d-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as an exhibit. A certification furnished pursuant to this paragraph will not be deemed “filed” for the purposes of Section 18 of the Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference: Attached hereto.

Notice

A copy of the Agreement and Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of the Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant MFS INVESTMENT GRADE MUNICIPAL TRUST


By (Signature and Title)*		MARIA F. DIORIODWYER
		Maria F. DiOrioDwyer, President

Date: January14, 2011

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.


By (Signature and Title)*		MARIA F. DIORIODWYER
		Maria F. DiOrioDwyer, President (Principal Executive Officer)

Date: January14, 2011


By (Signature and Title)*		JOHN M. CORCORAN
		John M. Corcoran, Treasurer (Principal Financial Officer and Accounting Officer)

Date: January14, 2011

*	Print name and title of each signing officer under his or her signature.