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•

Deferred acquisition costs and value of business acquired - The adjustment consists of two components. The first adjustment is the elimination of Catlin's deferred acquisition costs asset. The second adjustment is the establishment of the value of business acquired asset, which represents the present value of the expected underwriting profit within the unearned premiums liability, net of reinsurance, less costs to service the related policies and a risk premium. This adjustment will be amortized to underwriting, acquisition and insurance expenses over approximately two years, as the contracts for business in-force as of the Acquisition Date expire. The Company has included $21.6 million and $140.4 million, for the three months ended September 30, 2016 and 2015, respectively, and $121.1 million and $323.7 million, for the nine months ended September 30, 2016 and 2015, respectively, in acquisition expenses related to the amortization of the value of business acquired asset.

•

Unpaid losses and loss adjustment expenses - Unpaid losses and loss adjustment expenses acquired include an increase to adjust the carrying value of Catlin's historical unpaid losses and loss adjustment expenses, net of related reinsurance recoverable, to fair value as of the Acquisition Date. The estimated fair value consists of the present value of the expected net loss and loss adjustment expense payments plus a risk premium. This adjustment, plus the unamortized fair value adjustment included in Catlin's historical unpaid losses and loss adjustment expenses, will be amortized to losses and loss adjustment expenses over a weighted average period of approximately 20 years, based on the estimated payout pattern of net reserves as of the Acquisition Date.

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(1)	Short-term investments consist primarily of Other asset-backed securities, U.S. and Non-U.S. Government securities and Corporate securities.

(2)	Cash equivalents balances subject to fair value measurement include certificates of deposit and money market funds. Operating cash balances are not subject to recurring fair value measurement guidance.

(3)

Excluded from Other Investments are $378.4 million and $537.2 million as of September 30, 2016 and December 31, 2015, respectively, measured using Net Asset Value. Based on new accounting guidance, these investments are excluded from the fair value hierarchy table. In addition, the Other investments balance excludes a certain payment obligation. This investment, which totaled $142.0 million as of September 30, 2016 and $141.3 million as of December 31, 2015, is carried at amortized cost. For further information, see Item 8, Note 8, "Other Investments," to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015.

(4)

Other assets and other liabilities include derivative instruments. The derivative balances included in each category are reported on a gross basis by level with a netting adjustment presented separately in the Collateral and Counterparty Netting column. The fair values of the individual derivative contracts are reported gross in their respective levels based on the fair value hierarchy. For further details regarding derivative fair values and associated collateral received or paid, see Note 7, "Derivative Instruments."

(5)

Funds withheld on GreyCastle Life Retro Arrangements (net of future policy benefit reserves recoverable) include balances related to the life retrocession embedded derivative, under which all investment results associated with the Life Funds Withheld Assets related to the GreyCastle Life Retro Arrangements described in Note 1, "Basis of Preparation and Consolidation," accrue to the benefit of GCLR.

(6)	Financial instruments sold, but not yet purchased, represent "short sales" and are included within "Payable for investments purchased" on the balance sheets.

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(1)	Corporate and Other includes other items of our revenue and expenditures that are not evaluated at the segment level for reporting purposes, as well as the Company's run-off life operations.

(2)	The Company has reflected the amortization of certain fair value adjustments recorded in conjunction with the Catlin Acquisition within the respective segments.

(3)	Operating expenses of the segments exclude Corporate operating expenses, shown separately.

(4)	Net investment income - excluding Life Funds Withheld Assets does not include net investment income related to the net results from structured products.

(5)	The net results from P&C structured products include net investment income and interest expense of $14.1 million and $6.4 million, respectively.

(6)	Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(7)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.

(8)	Ratios are based on net premiums earned from P&C operations.

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(1)	Corporate and Other includes other items of our revenue and expenditures that are not evaluated at the segment level for reporting purposes, as well as the Company's run-off life operations.

(2)	The Company has reflected the amortization of certain fair value adjustments recorded in conjunction with the Catlin Acquisition within the respective segments.

(3)	Operating expenses of the segments exclude Corporate operating expenses, shown separately.

(4)	Net investment income - excluding Life Funds Withheld Assets does not include net investment income related to the net results from structured products.

(5)	The net results from P&C structured products include net investment income and interest expense of $15.6 million and $11.1 million, respectively.

(6)	Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(7)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.

(8)	Ratios are based on net premiums earned from P&C operations.

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(1)	Corporate and Other includes other items of our revenue and expenditures that are not evaluated at the segment level for reporting purposes, as well as the Company's run-off life operations.

(2)	The Company has reflected the amortization of certain fair value adjustments recorded in conjunction with the Catlin Acquisition within the respective segments.

(3)	Operating expenses of the segments exclude Corporate operating expenses, shown separately.

(4)	Net investment income - excluding Life Funds Withheld Assets does not include net investment income related to the net results from structured products.

(5)	The net results from P&C structured products include net investment income and interest expense of $40.9 million and $29.1 million, respectively.

(6)	Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(7)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.

(8)	Ratios are based on net premiums earned from P&C operations.

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(1)	Corporate and Other includes other items of our revenue and expenditures that are not evaluated at the segment level for reporting purposes, as well as the Company's run-off life operations.

(2)	The Company has reflected the amortization of certain fair value adjustments recorded in conjunction with the Catlin Acquisition within the respective segments.

(3)	Operating expenses of the segments exclude Corporate operating expenses, shown separately.

(4)	Net investment income - excluding Life Funds Withheld Assets does not include net investment income related to the net results from structured products.

(5)	The net results from P&C structured products include net investment income and interest expense of $46.7 million and $31.7 million, respectively.

(6)	Net fee income and other includes operating expenses from the Company's loss prevention consulting services business.

(7)	Interest expense excludes interest expense related to structured products recorded in the Insurance and Reinsurance segments.

(8)	Ratios are based on net premiums earned from P&C operations.

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(1)	Other within the Insurance segment includes: surety, structured indemnity and certain discontinued lines. Other within the Reinsurance segment includes: whole account contracts, structured indemnity and other lines.

(2)

Amounts from the prior year have been represented to reflect current mapping of underlying lines of business to be consistent with the manner in which they are reflected in the current period. The most significant movements include the following: Energy business previously shown under Specialty is now reflected in Property; Programs business formerly in Other is now reflected in Property or Casualty, depending upon the predominant line for each program; and Excess and Surplus is now reflected primarily in Casualty.

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(1)	Other within the Insurance segment includes: surety, structured indemnity and certain discontinued lines. Other within the Reinsurance segment includes: whole account contracts, structured indemnity and other lines.

(2)

Amounts from the prior year have been represented to reflect current mapping of underlying lines of business to be consistent with the manner in which they are reflected in the current period. The most significant movements include the following: Energy business previously shown under Specialty is now reflected in Property; Programs business formerly in Other is now reflected in Property or Casualty, depending upon the predominant line for each program; and Excess and Surplus is now reflected primarily in Casualty.

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(1)	Represents the non-credit component of OTTI losses, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

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(1)	Represents the non-credit component of OTTI losses, adjusted for subsequent sales of securities. It does not include the change in fair value subsequent to the impairment measurement date.

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▪	$2.1 million related to certain fixed maturities that we no longer intend to hold for a period sufficient to recover their fair value to cost.

▪	$1.1 million related to certain high yield securities where we determined that the likely recovery on these securities was below the carrying value.

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▪	$0.6 million for structured securities, where we determined that the likely recovery on these securities was below the carrying value and, accordingly, recorded an impairment of the securities to the discounted value of the cash flows expected to be received on these securities.

•	$6.1 million related to foreign exchange losses.

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(1)

Derivative instruments in an asset or liability position are included within Other assets or Other liabilities, respectively, in the balance sheets on a net basis where the Company has both a legal right of offset and the intention to settle the contracts on a net basis. The Company often enters into different types of derivative contracts with a single counterparty and these contracts are covered under netting agreements.

(2)

The fair value movements in derivative assets and liabilities relating to modified coinsurance funds withheld contracts are included within the associated asset or liability at each period end on the face of the balance sheets. Notional amounts associated with reinsurance agreements under which the Company assumes reinsurance risk are recorded as asset derivative notional amounts. Notional amounts associated with the GreyCastle Life Retro Arrangements under which the Company cedes reinsurance risk are recorded as liability derivative notional amounts. Included in the liability derivative notional amount as of September 30, 2016 is the cumulative net realized and unrealized loss on the life retrocession embedded derivative of $1.1 billion.

(3)

As of September 30, 2016, the Company held cash collateral related to foreign currency derivative positions and certain other derivative positions of $24.0 million for derivatives in an asset position and paid cash collateral of $8.3 million for derivatives in a liability position. As of December 31, 2015, the Company held cash collateral related to a foreign currency derivative position and certain other derivative positions of $31.0 million for derivatives in an asset position and paid cash collateral of nil for derivatives in a liability position. The assets and liabilities related to the net collateral paid or held were recorded as Other assets and Other liabilities within the unaudited consolidated balance sheets as the collateral and derivative positions are not intended to be settled on a net basis.

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(1)	Derivative gains (losses) from derivative instruments designated as hedges of an investment in a foreign operation are recorded in the cumulative translation adjustment account within AOCI for each period.

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(1)	The underwriting profit of $0.6 million relates to a premium adjustment during the nine months ended September 30, 2015 relating to the GreyCastle Life Retro Arrangements transaction. Excluding this transaction, the impact to comprehensive income relating to the GreyCastle Life Retro Arrangements was nil for the nine months ended September 30, 2015.

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(1)

Excluded from the table are certain credit facilities under which the Company is permitted to utilize up to $1.1 billion and $1.4 billion as of September 30, 2016 and December 31, 2015, respectively, for revolving loans to support general operating and financing needs. However, as of September 30, 2016 and December 31, 2015, $501.5 million and $527.1 million, respectively, were utilized under these facilities to issue letters of credit, leaving $598.5 million and $822.9 million, respectively, available to support other operating and financing needs.

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(1)	As of September 30, 2016 and December 31, 2015, there were fifteen available credit facilities

(2)

As of September 30, 2016 and December 31, 2015, the stated portion of allowable credit facilities permitted to be utilized for revolving loans was $1.1 billion and $1.4 billion, respectively. However, as of September 30, 2016 and December 31, 2015, $501.5 million and $527.1 million, respectively, of such facilities' limits were utilized to issue letters of credit, leaving $598.5 million and $822.9 million, respectively, available either to issue additional letters of credit or to support other operating or financing needs under these particular facilities.

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(1)

For certain annuity contracts that are subject to the GreyCastle Life Retro Arrangements, policy benefit reserves were historically increased for the impact of changes in unrealized gains on investments supporting such contracts as if the gains had been realized, with a corresponding entry to other comprehensive income ("Shadow Adjustments"). Upon completion of the GreyCastle Life Retro Arrangements, no further Shadow Adjustments were recorded. As of December 31, 2015, the cumulative impact of the Shadow Adjustments was $274.4 million. During the nine months ended September 30, 2016, net movements of $(27.8) million were recorded, resulting in a total cumulative net impact of Shadow Adjustments on future policy benefit reserves of $246.6 million as of September 30, 2016.

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(1)	Results for the period include XL-Ireland, which prior to the Redomestication was the ultimate parent and is now in liquidation proceedings as outlined in Note 1, "Basis of Preparation and Consolidation." The Company expects the net assets of XL-Ireland to ultimately be distributed to XL-Bermuda upon completion of the liquidation.

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(1)	Results for the period include XL-Ireland, which prior to the Redomestication was the ultimate parent and is now in liquidation proceedings as outlined in Note 1, "Basis of Preparation and Consolidation." The Company expects the net assets of XL-Ireland to ultimately be distributed to XL-Bermuda upon completion of the liquidation.

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(1)	Results for the period include XL-Ireland, which prior to the Redomestication was the ultimate parent and is now in liquidation proceedings as outlined in Note 1, "Basis of Preparation and Consolidation." The Company expects the net assets of XL-Ireland to ultimately be distributed to XL-Bermuda upon completion of the liquidation.

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(1)	Results for the period include XL-Ireland, which prior to the Redomestication was the ultimate parent and is now in liquidation proceedings as outlined in Note 1, "Basis of Preparation and Consolidation." The Company expects the net assets of XL-Ireland to ultimately be distributed to XL-Bermuda upon completion of the liquidation.

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(1)	Net proceeds from affiliated notional cash pooling arrangements reflect the net impact of bank transfers to settle overdraft positions within the Company's multi-currency cash pool.

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▪	the continuation of downward trends in rates for property and casualty insurance and reinsurance;

▪	changes in the size of our claims relating to unpredictable natural or man-made catastrophe losses, such as hurricanes, typhoons, floods, nuclear accidents or terrorism, due to the preliminary nature of some reports and estimates of loss and damage to date;

▪	changes in the number of insureds and ceding companies impacted or the ultimate number and value of individual claims related to 2016 natural catastrophe events due to the preliminary nature of reports and estimates of loss and damage to date;

▪	changes in the amount or type of business that we write, whether due to our actions, changes in market conditions or other factors, and the amount of premium attributable to those businesses;

▪	the availability, cost or quality of ceded reinsurance, and the timely and full recoverability of such reinsurance, or other amounts due to us, or changes to our projections relating to such recoverables;

▪	actual loss experience from insured or reinsured events and the timing of claims payments being faster or the receipt of reinsurance recoverables being slower than we anticipated;

▪	increased competition on the basis of pricing, capacity, coverage terms or other factors, such as the increased inflow of third-party capital into reinsurance markets, which could harm our ability to maintain or increase our business volumes or profitability;

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▪	greater frequency or severity of claims and loss activity than our underwriting, reserving or investment practices anticipate based on historical experience or industry data;

▪

the impact of changes in the global financial markets, such as the effects of inflation on our business including on pricing and reserving, changes in interest rates, credit spreads and foreign currency exchange rates and future volatility in the world's credit, financial and capital markets that adversely affect the performance and valuation of our investments, future financing activities and access to such markets, our ability to pay claims or our general financial condition;

▪	our ability to successfully implement our business strategy;

▪	our ability to successfully attract and raise additional third party capital for existing or new investment vehicles;

▪	changes in credit ratings or rating agency policies or practices, which could trigger cancellation provisions in our assumed reinsurance agreements or impact the availability of our credit facilities;

▪	the potential for changes to methodologies, estimations and assumptions that underlie the valuation of our financial instruments, that could result in changes to investment valuations;

▪	changes to our assessment as to whether it is more likely than not that we will be required to sell, or have the intent to sell, available-for-sale ("AFS") fixed maturity securities before their anticipated recovery;

▪	unanticipated constraints on our liquidity, including the availability of borrowings and letters of credit under our credit facilities, that may inhibit our ability to support our operations, including our ability to underwrite policies and pay claims;

▪	the ability of our subsidiaries to pay dividends to XL-Bermuda, XLIT Ltd. ("XL-Cayman") and Catlin Insurance Company Ltd;

▪	changes in regulators or regulations applicable to our brokers or customers or to us, such as changes in regulatory capital balances that our operating subsidiaries must maintain;

▪	the effects of business disruption, economic contraction or economic sanctions due to unpredictable global political and social conditions such as war, terrorism or other hostilities, cyber-attacks, or pandemics;

▪	the actual amount of new and renewal business and acceptance of our products and services, including new products and services and the materialization of risks related to such products and services;

▪	changes in the distribution or placement of risks due to increased consolidation of insurance and reinsurance brokers;

▪	bankruptcies or other financial concerns of companies insofar as they affect P&C insurance and reinsurance coverages or claims that we may have as a counterparty;

▪	the loss of key personnel;

▪	the effects of mergers, acquisitions and divestitures, including our ability to modify our internal control over financial reporting, changes to our risk appetite and our ability to realize the strategic value or financial benefits expected, in each case, as a result of such transactions;

▪

changes in general economic conditions, including the political, monetary, economic and operational impacts of the "Brexit" referendum held on June 23, 2016 in which the U.K. electorate voted to withdraw from the E.U., new or continued sovereign debt concerns in Euro-Zone countries or emerging markets such as Brazil or China, or governmental actions for the purpose of stabilizing financial markets;

▪	changes in applicable tax laws, tax treaties or tax regulations or the interpretation or enforcement thereof;

▪	judicial decisions and rulings, new theories of liability or emerging claims coverage issues, legal tactics and settlement terms;

•	the effects of climate change (such as changes to weather patterns, sea levels or temperatures) on our business, which our modeling or risk management practices may not adequately address due to the uncertain nature of climate change; and

•	the other factors set forth in Item 1A, "Risk Factors," included in our Annual Report on Form 10-K for the year ended December 31, 2015 and our other documents on file with the SEC.

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(1)	Net investment income - P&C operations includes all net investment income related to the net results from structured products and excludes all net investment income from the assets supporting the Life Funds Withheld Assets, as defined in Item 1, Note 1, "Basis of Preparation and Consolidation," to the Unaudited Consolidated Financial Statements included herein.

(2)	Represents a non-GAAP financial measure as discussed further below. See "Reconciliation of Non-GAAP Measures" below.

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▪	The combined ratio related to the P&C operations is the sum of the loss and loss expense ratio and the underwriting expense ratio. A combined ratio under 100% represents an underwriting profit and over 100% represents an underwriting loss. In the P&C industry, the combined ratio is a widely used measure of underwriting profitability.

▪	The loss and loss expense ratio related to the P&C operations is calculated by dividing the losses and loss expenses incurred by the net premiums earned for the Insurance and Reinsurance segments.

▪	The underwriting expense ratio related to the P&C operations is the sum of acquisition costs and operating expenses for the Insurance and Reinsurance segments divided by net premiums earned for the Insurance and Reinsurance segments.

▪	The acquisition expense ratio related to the P&C operations is calculated by dividing the acquisition costs incurred by the net premiums earned for the Insurance and Reinsurance segments.

▪	The operating expense ratio related to the P&C operations is calculated by dividing the operating expenses incurred by the net premiums earned for the Insurance and Reinsurance segments.

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(1)

Investment results for the Life Funds Withheld Assets - including interest income, unrealized gains and losses, and gains and losses from sales - are passed directly to the reinsurer pursuant to a contractual arrangement which is accounted for as a derivative. Changes in the fair value of the embedded derivative associated with the GreyCastle Life Retrocession Arrangements are reflected within "Net realized and unrealized (gains) losses on life retrocession embedded derivative and derivative instruments - Life Funds Withheld Assets" in the reconciliation.

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(1)	Source: Bloomberg Finance L.P.

(2)	Source: Merrill Lynch Global Indices.

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(1)	Source: Bloomberg Finance L.P.

(2)	Source: Merrill Lynch Global Indices.

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(1)	Detailed analyses of aggregated in-force exposures and maximum loss levels are done periodically. The measurement dates represent the date of the last completed detailed analysis by geographical zone.

(2)	Probable maximum losses, which include secondary uncertainty that incorporates variability around the expected probable maximum loss for each event, do not represent our maximum potential exposures and are pre-tax.

(3)

Adjusted Tangible Capital, a non-GAAP measure, is defined as Total Shareholders’ Equity ($13.6 billion) plus (i) outstanding subordinated notes due 2025 ($493.1 million) and 2045 ($488.7 million) less (ii) Goodwill and Other Intangible Assets ($2.2 billion) and less (iii) Adjusted Accumulated Other Comprehensive Income ($1.1 billion), which is defined as Accumulated Other Comprehensive Income ($1.5 billion) plus Shadow Adjustments, as defined in Item 1, Note 15, "Accumulated Other Comprehensive Income (Loss)," to the Unaudited Consolidated Financial Statements included herein ($246.6 million) less gross unrealized gains resulting from Life Funds Withheld Assets ($693.2 million).

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▪	Professional - decrease of 2.8% is mainly driven by lower new and renewal business in design and commercial errors & omissions business lines, partially offset by an increase in cyber and international financial lines.

▪	Casualty - decrease of 0.7% is attributable to lower retention in excess and surplus lines, and international casualty lines. This decrease was partially offset by increases in new and renewal business in global risk management, North America construction, and the Allied Specialty acquisition.

▪	EPC - increase of 6.2% due to an increase in new business in property international open market and North American property open market business lines.

▪	Specialty - decrease of 10.4% is driven by lower new business in aerospace and equine, livestock and aquaculture, and life, accident and health. These decreases were partially offset by higher new and renewal business in political risk and trade credit.

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▪	Bermuda - decrease of 13.1% is primarily due to non-renewed business in Property Catastrophe and prior year adjustments on whole account line of business.

▪	North America - increase of 58.7% is largely attributable to new business in Casualty and Property Treaty lines of business and negative premium adjustment in Marine in the prior year.

▪	London - increase of 11.0% is primarily due to new business in Property Catastrophe and Casualty lines of business. Additionally, Casualty share change contributed to the increase which is partially offset by foreign exchange loss.

▪	EMEA - decrease of 15.1% is due to timing of a quota share renewal in Marine line of business in the prior year.

▪	LAC - increase of 37.4% is driven predominantly by the new business in Property Treaty and Credit lines of business. Additionally, our Credit portfolio contributed positive prior year premium adjustment offset by negative premium adjustment in our Crop line of business.

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▪	Net favorable prior year development for the short-tail lines totaled $30.6 million. Details of the significant components are as follows:

▪	For property catastrophe lines, net prior year development was $31.1 million favorable, primarily due to favorable losses incurred but not reported ("IBNR") release on older catastrophe and large losses and due to better than expected experience.

▪	For property other lines, net prior year development was $1.8 million favorable mainly due to better than expected experience on attritional losses.

•	For specialty lines, net prior year development was $2.3 million unfavorable due to worse than expected development on large losses, primarily on the Marine book.

▪	Net favorable prior year development for the long-tail lines totaled $0.3 million and details of the significant components are as follows:

•	For casualty lines, net prior year development was $1.7 million unfavorable due to actual experience being worse than expected on older years for Casualty Treaty business.

•	For other lines, net prior year development was $2.0 million favorable largely due to actual experience being better than expected on the whole account book.

•	Operating expense ratio - decrease was attributable to synergies realized due to the Catlin Acquisition and driven by the adoption of a consistent segment approach to reclassifying expenses to unallocated loss adjustment expenses.

•	Acquisition expense ratio - decrease was driven by a different business mix and lower earnings than the prior year in the Bermuda and London regions.

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(1)	The performance of investment portfolios is measured on a local currency basis. For the aggregate performance calculation, respective local currency balances are translated to U.S. dollars using quarter end rates to calculate composite portfolio results. Performance represents the P&C operations and run-off life operations for the three months ended September 30, 2016 and 2015.

(2)	Performance on Other Portfolios is included in the Total Return on Investments.

(3)	Performance on the hedge fund portfolio reflects the three months ended August 31, 2016 and 2015, respectively, for both equity and non-equity accounted hedge funds.

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(1)	For a summary of realized and unrealized losses on all derivative instruments, see Item 1, Note 7, "Derivative Instruments," to the Unaudited Consolidated Financial Statements included herein.

*	N/M - Not Meaningful

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(1)	Interest expense includes costs related to our debt and collateral facilities and does not include deposit liability accretion, which is included in Net investment results - structured products.

*	N/M - Not Meaningful

*	N/M - Not Meaningful

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▪	Professional - decrease of 1.8% primarily in North America professional and commercial errors and omissions business lines, partially offset by modest growth in the cyber business line.

▪	Casualty - increase of 9.2% is largely a result of the Catlin Acquisition and related to global risk management, North American construction, excess and surplus, and international casualty. Additionally, the Allied Acquisition contributed to the increase in premiums. Compared to the combined books in the prior year, premiums decreased due to rate pressures in several lines.

▪	EPC - increase of 30.4% with increases across all lines of business following the Catlin Acquisition. Compared to the combined books in the prior year, and excluding the effects of foreign exchange, premiums increased slightly, generally in core property lines.

▪	Specialty - increase of 39.6% with improvements across all lines of business following the Catlin Acquisition. Compared to the combined books in the prior year, and excluding the effects of foreign exchange, premiums decreased slightly most notably in the aerospace and marine business lines.

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•

For casualty lines, net prior year development was $44.9 million favorable. This was driven by a release of $28.5 million in International Casualty, primarily to reflect better than expected loss experience reported on the general and professional liability books, and $21.5 million in discontinued casualty primarily due to our reassessment of the IBNR provision for a large risk U.S. Casualty portfolio, discontinued prior to 2008, following favorable claims resolutions in recent years.

•	For EPC lines, net prior year development was $7.6 million favorable driven by reflecting better than expected reported non-catastrophe loss experience.

•

For specialty lines, net prior year development was $14.5 million favorable driven by releases of $7.2 million in discontinued specialty relating to reserve releases following the expiration of a policy, and $9.1 million in marine due to better than expected reported loss experience on the cargo, hull and liability businesses. This was partially offset by modest strengthening in accident and health driven by deteriorations in the U.S. and Switzerland books, and in crisis management relating to deteriorations in large losses.

▪

Acquisition expense ratio - we experienced a slight increase over the prior year as a result of the Catlin Acquisition, which included a larger share of wholesale specialty business where the acquisition costs were higher than the legacy portfolio, combined with lower commissions received from the ceded business, largely resulting from a higher mix of facultative and other excess of loss protections carrying lower ceding commissions than quota share cessions.

▪	Operating expense ratio - decreased 2.2 percentage points due to synergies realized from the Catlin Acquisition.

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▪	Bermuda - increase of 19.2% is primarily in the Property Catastrophe line of business due to the Catlin Acquisition, plus prior year premium adjustments on the whole account line of business.

▪	North America - increase of 47.2% is largely related to increases in Casualty, Property Treaty and Property Facultative lines of business due to the Catlin Acquisition.

▪	London - significant increase is driven from the Catlin Acquisition, producing a substantial Property Catastrophe portfolio, alongside growth in the Marine and Casualty lines of business.

▪	EMEA - increase is primarily related to substantial new business in Casualty line related to Large New Motors quota share treaties. Also contributing to the increase are Whole Account, which is a new initiative for 2016, and new business in Crop and Property Treaty businesses.

▪	LAC - increase is primarily related to growth in Credit, Crop and Property Catastrophe lines of business.

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▪	Net favorable prior year development for the short-tail lines totaled $69.0 million. Details of the significant components are as follows:

•	For property catastrophe lines, net prior year development was $54.4 million favorable, primarily due to favorable IBNR release on older cat and large losses and due to better than expected experience.

•	For property other lines, net prior year development was $5.1 million favorable, mainly due to better than expected development on attritional losses on the property business being partially offset by unfavorable development on attritional losses for the crop business.

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•	For specialty lines, net prior year development was $9.6 million favorable mainly due to better than expected development on attritional losses mainly on the Marine book.

▪	Net favorable prior year development for the long-tail lines totaled $59.1 million and details of the significant components are as follows:

▪	For casualty lines, net prior year development was $50.4 million favorable due to better than expected development on attritional losses for 2014 and prior underwriting years.

▪	For other lines, net prior year development was $8.7 million favorable largely due to better than expected development on attritional losses on the whole account book.

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(1)	The performance of investment portfolios is measured on a local currency basis. For the aggregate performance calculation, respective local currency balances are translated to U.S. dollars using quarter end rates to calculate composite portfolio results.

(2)	Performance on Other Portfolios is included in the Total Return on Investments.

(3)	Performance on the hedge fund portfolio reflects the nine months ended August 31, 2016 and 2015, respectively, for both equity and non-equity accounted hedge funds.

(1)	For a summary of realized and unrealized losses on all derivative instruments, see Item 1, Note 7, "Derivative Instruments," to the Unaudited Consolidated Financial Statements included herein.

*	N/M - Not Meaningful

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(1)	Interest expense includes costs related to our debt and collateral facilities and does not include deposit liability accretion, which is included in Net investment results - structured products.

*	N/M - Not Meaningful

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(1)	Carrying value represents the fair value of AFS fixed maturities.

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(1)

The credit rating for each asset reflected above was principally determined based on the weighted average rating of the individual securities from Standard & Poor's, Moody's Investors Service and Fitch Ratings (when available). U.S. Agency debt and related mortgage-backed securities, whether with implicit or explicit government support, reflect the credit quality rating of the U.S. government for the purpose of these calculations.

•	gross unrealized losses of $86.6 million related to Government and Government-Related holdings. Securities in a gross unrealized loss position had a fair value of $1.9 billion as of September 30, 2016.

•	gross unrealized losses of $64.8 million related to Corporate holdings. Securities in a gross unrealized loss position had a fair value of $1.4 billion as of September 30, 2016.

•	gross unrealized losses of $14.6 million related to Non-Agency RMBS securities (which consists of our holdings of sub-prime Non-Agency RMBS, Alt-A and Prime RMBS). Securities in an unrealized loss position had a fair value of $180.8 million as of September 30, 2016.

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(1)	Cash equivalents balances subject to fair value measurements include certificates of deposit and money market funds.

(2)

Excluded from Other investments balances are $378.4 million at September 30, 2016 measured using Net Asset Value. Based on new accounting guidance, these investments are excluded from the hierarchy table. In addition, the Other investments balance excludes certain structured transactions including certain investments in project finance transactions and a payment obligation that are carried at amortized cost, which totaled $142.0 million at September 30, 2016. For further information, see Item 8, Note 8, "Other Investments," to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2015

(3)	Other assets include derivative instruments, reported on a gross basis.

(4)	Financial instruments sold, but not yet purchased, are included within "Payable for investments purchased" on the balance sheets.

(5)	Other liabilities include derivative instruments, reported on a gross basis.

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•	debt;

•	XL-Cayman and Catlin Insurance Company Ltd. ("Catlin-Bermuda") preference shares;

•	letter of credit facilities and other sources of collateral; and

•	revolving credit facilities.

▪	sufficient capital to maintain our financial strength and credit ratings, as issued by several ratings agencies, at levels considered necessary by management to enable our key operating subsidiaries to compete;

▪	sufficient capital to enable our regulated subsidiaries to meet the regulatory capital levels required in the United States, the U.K., Bermuda, Ireland, Switzerland and other key markets;

▪	letters of credit and other forms of collateral that are required to be posted or deposited, as the case may be, by our operating subsidiaries that are "non-admitted" under U.S. state insurance regulations in order for the U.S. cedant to receive statutory credit for reinsurance. We also use letters of credit to support our operations at Lloyd's; and

▪	revolving credit facilities to meet short-term liquidity needs.

▪	the credit available from banks may be reduced due to market conditions resulting in our need to pledge our investment portfolio to customers, which could result in a lower investment yield;

▪	we may be downgraded by one or more rating agencies, which could materially and negatively impact our business, financial condition, results of operations and/or liquidity; and

▪	the volume of business that our subsidiaries that are not admitted in the United States are able to transact could be reduced if we are unable to obtain letter of credit facilities at an appropriate amount.

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▪	$300 million senior notes due December 2018, with a fixed coupon of 2.30%. The notes are listed on the New York Stock Exchange and are guaranteed by XL-Bermuda. The notes were issued at 99.69% of the face amount and net proceeds were $296.6 million. Related expenses of the offering amounted to $2.5 million.

▪	$400 million senior notes due October 2021, with a fixed coupon of 5.75%. The notes are listed on the New York Stock Exchange and are guaranteed by XL-Bermuda. The notes were issued at 100.0% of the face amount and net proceeds were $395.7 million. Related expenses of the offering amounted to $4.3 million.

▪	$350 million senior notes due November 2024, with a fixed coupon of 6.375%. The notes are publicly traded. The notes were issued at 100.0% of the face amount and net proceeds were $347.8 million. Related expenses of the offering amounted to $2.2 million.

▪	$500 million subordinated notes due March 2025, with a fixed coupon of 4.45%. The notes are listed on the New York Stock Exchange and are guaranteed by XL-Bermuda. The notes were issued at 99.633% of the face amount and net proceeds were $492.2 million. Related expenses of the offering amounted to $5.9 million.

▪	$325 million senior notes due May 2027, with a fixed coupon of 6.25%. The notes are publicly traded. The notes were issued at 99.805% of the face amount and net proceeds were $321.9 million. Related expenses of the offering amounted to $2.5 million.

▪	$300 million senior notes due December 2043, with a fixed coupon of 5.25%. The notes are listed on the New York Stock Exchange and are guaranteed by XL-Bermuda. The notes were issued at 99.77% of the face amount and net proceeds were $296.0 million. Related expenses of the offering amounted to $3.3 million.

▪	$500 million subordinated notes due March 2045, with a fixed coupon of 5.5%. The notes are listed on the New York Stock Exchange and are guaranteed by XL-Bermuda. The notes were issued at 99.115% of the face amount and net proceeds were $488.4 million. Related expenses of the offering amounted to $7.2 million.

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(1)	Terms used in this table are defined in the discussion below.

(2)	As of September 30, 2016, the portion of the total credit facilities permitted to be utilized for revolving loans was $1.1 billion. However, $501.5 million of this allowable portion was utilized to issue letters of credit, leaving $598.5 million available either to issue additional letters of credit or to support other operating or financing needs under these particular facilities.

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•	A bilateral facility pursuant to a continuous credit agreement, available for utilization by Catlin-Bermuda, collateralized by pledged financial assets (the "CICL Facility"). As of September 30, 2016, $230 million of capacity was available under this facility.

•	A bilateral facility pursuant to a continuous credit agreement, available for utilization by Catlin Re Switzerland Ltd ("CRCH"), collateralized by pledged financial assets (the "CRCH Facility"). As of September 30, 2016, $200 million of capacity was available under this facility.

•	A facility managed by Lloyd's, acting for Catlin Syndicate 2003 (the "Syndicate 2003 Facility"). As of September 30, 2016, $12 million of letters of credit were issued under this facility.

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(1)	Government-guaranteed securities and Covered Bonds have been excluded from the above figures.

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(1)	Includes Covered Bonds.

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(1)	The estimated impact on the fair value of our fixed income portfolio of an immediate hypothetical +100 bps adverse parallel shift in global bond curves.

(2)

The estimated impact on the fair value of our investment portfolio of an immediate hypothetical -10% change in the value of equity exposures in our equity portfolio, certain equity-sensitive hedge fund investments and private equity investments. This includes our estimate of equity risk embedded in the hedge fund and private investment portfolios with such estimates utilizing market exposures provided to us by certain individual fund investments, internal statistical analyses, and/or various assumptions regarding illiquidity and concentrations.

(3)	The estimated impact on the fair value of our fixed income portfolio of an immediate hypothetical +100 basis point increase in all global government related, corporate and structured security spreads to which our fixed income portfolio is exposed. This excludes exposure to credit spreads in our hedge fund investments, private investments and counterparty exposure.

(4)	The estimated impact on the fair value of our fixed income portfolio of an immediate hypothetical +10% increase in all global government related, corporate and structured security spreads to which our fixed income portfolio is exposed. This excludes exposure to credit spreads in our hedge fund investments, private investments and counterparty exposure.

(5)	The VaR results are based on a 95% confidence interval, with a one-year holding period, excluding foreign exchange rate risk. Our investment portfolio VaR as of September 30, 2016 is not necessarily indicative of future VaR levels as these are based on statistical estimates of possible price changes and, therefore, exclude other sources of investment return such as coupon and dividend income.

(6)

The VaR results are the standalone VaRs, based on the prescribed methodology, for each component of our Total Investment Portfolio. The standalone VaRs of the individual components are non-additive, with the difference between the summation of the individual component VaRs and their respective aggregations being due to diversification benefits across the individual components. In the case of the VaR results for our Total Investment Portfolio, the results also include the impact associated with our Business and Other investments.

(7)	Our Total Investment Portfolio also includes our Business and Other investments that do not form part of our Fixed Income Portfolio or Non-Fixed Income Portfolio. The individual results reported in the above table for our Total Investment Portfolio therefore represent the aggregate impact on our Fixed Income Portfolio, Non-Fixed Income Portfolio and the majority of our Other investments.

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•	Slow growth in the U.K., the E.U., or globally for the foreseeable future. Such slowing could exacerbate the pressure on pricing of our products, among other impacts.

•	Creation of a prolonged low interest rate environment, which may affect our profitability, cost structure, overall return on equity and solvency position.

•

Heightened and extended market volatility and currency exchange fluctuations, which could impact our mark to market exposure on net asset values or weaken returns in our investment portfolio due to spread tightening, weakness in equity markets, higher default rates and market illiquidity. Due to the interconnectedness of the E.U. and the global financial system in general, shocks from Brexit could spawn financial contagion across global markets.

•

Individual countries may not be incentivized to negotiate a solution for certain issues that will be as favorable to the U.K. as today’s arrangements, thereby adding to the uncertainty and reducing the profitability of our U.K. and European operations. Due to the potential for less cross country cooperation, our industry may be facing a less liberal trading regime in the future which could take the form of tariffs or other protectionist measures.

•	Potential longer term inflationary pressures in the U.K. arising from the devaluation of the British Pound Sterling after the vote, which could adversely affect the carrying value of certain of our liabilities.

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•	Brexit exacerbates the potential for additional referendums within the U.K., such as Scotland, which could lead to a breakup of the U.K.

•

Increased costs of doing business in the U.K., which may include additional capital requirements, including as a result of new and/or additional laws and regulations across a wide variety of areas potentially including, but not limited to, labor laws, data privacy laws, taxation laws and, more generally, the terms of commercial activities between the U.K. and the E.U. Increased costs and capital requirements may also result from the U.K. no longer being part of the Solvency II regime.

•

The potential for further unwinding of the E.U., as other European countries may seek to conduct referenda with respect to their continuing membership with the E.U. A breakup of the E.U. would further reduce passporting benefits, potentially causing us to establish legal entities and/or branches in more countries in order to write business in those countries. This in turn may create the potential for more strained capital and reductions in capital surpluses and additional expense overhead, talent shortages, greater operational complexity and more onerous and duplicative requirements from individual country regulators. In connection with such an unwinding, exiting countries also may seek to redenominate their currencies, which could have a significant impact on our foreign exchange hedging activity and our results of operations and financial condition.

(1)	Shares purchased in connection with the vesting of restricted shares granted under our restricted stock plan do not represent shares purchased as part of publicly announced plans or programs. All such purchases were made in connection with satisfying tax withholding obligations of those employees.

(2)	For information regarding our share buyback activity see Part I, Item 1, Note 9, "Share Capital," to the Unaudited Consolidated Financial Statements included herein.

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*	Filed herewith.

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