n23c2_022510.htm
 
Securities and Exchange Commission
Washington, DC 20549
Rule 23c-2 Notice of Intention to
Redeem Securities
 
of
 
Nuveen Insured Municipal Opportunity Fund, Inc.
333 West Wacker Drive
Chicago, Illinois  60606
 
under the
 
Investment Company Act of 1940
 
Investment Company Act File No. 811-06379
 
The undersigned registered closed-end investment company hereby notifies the Securities and Exchange Commission (“SEC”) that it intends to redeem securities of which it is the issuer, as set forth below in accordance with the requirements of Rule 23c-2 under the Investment Company Act of 1940 (the “Act”), and states that it is filing this notice with the Commission pursuant to permission granted by the Commission staff fewer than 30 days prior to the date set for the redemption.
 
(1)  
Title of the class of securities of Nuveen Insured Municipal Opportunity Fund, Inc. (the “Fund”) to be redeemed:
 
Municipal Auction Rate Cumulative Preferred Shares, Liquidation Preference $25,000 per share, Series M (CUSIP #670984202), Series T (CUSIP #670984301), Series W (CUSIP #670984608), Series W2 (CUSIP #670984806), Series W3 (CUSIP #670984889), Series TH (CUSIP #670984400), Series TH2 (CUSIP #670984707), Series TH3 (CUSIP #670984871) and Series F (CUSIP #670984509) (the “MuniPreferred Shares”).
 
(2)  
Date on which the securities are to be called or redeemed:
 
Series
Date
M
March 26, 2010
T
March 22, 2010
W
March 23, 2010
W2
March 23, 2010
W3
March 23, 2010
TH
March 24, 2010
TH2
March 24, 2010
TH3
March 24, 2010
F
March 25, 2010
 
 
 
(3)  
Applicable provisions of the governing instrument pursuant to which the securities are to be redeemed:
 
The MuniPreferred Shares are to be redeemed pursuant to Section 11(a)(i) of the Statement Establishing and Fixing the Rights and Preferences of Municipal Auction Rate Cumulative Preferred Shares of the Fund.
 
(4)  
The number of shares to be redeemed and the basis upon which the shares to be redeemed are to be selected:
 
The Fund intends to redeem, by lot (as determined by The Depository Trust Company), the number of outstanding MuniPreferred Shares set forth below:
 
Series
Number of Shares
M
53
T
53
W
53
W2
43
W3
24
TH
53
TH2
53
TH3
41
F
53

 
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SIGNATURE
 
Pursuant to the requirement of Rule 23c-2 under the Investment Company Act of 1940, the Fund has duly caused this Notice of Intention to Redeem Securities to be signed on its behalf by the undersigned on this 1st day of March, 2010.
 
 
NUVEEN INSURED MUNICIPAL OPPORTUNITY FUND, INC.
  
       
 
By:
/s/Mark L. Winget  
   
Name:  Mark L. Winget
  
   
Title:     Vice President and Assistant Secretary