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: 811-07528 ---------------------------------------------- Insured Municipal Income Fund Inc. ------------------------------------------------------------------------------ (Exact name of registrant as specified in charter) 51 West 52nd Street, New York, New York 10019-6114 ------------------------------------------------------------------------------ (Address of principal executive offices) (Zip code) Amy R. Doberman UBS Global Asset Management (US) Inc. 51 West 52nd Street New York, NY 10019-6114 (Name and address of agent for service) Copy to: Jack W. Murphy, Esq. Dechert 1775 I Street, N.W. Washington, DC 20006-2401 Registrant's telephone number, including area code: 212-882 5000 Date of fiscal year end: March 31 Date of reporting period: September 30, 2003 ITEM 1. REPORTS TO STOCKHOLDERS. [UBS LOGO] Global Asset Management Insured Municipal Income Fund Inc. Semiannual Report September 30, 2003 Insured Municipal Income Fund Inc. November 14, 2003 DEAR SHAREHOLDER, We present you with the semiannual report for Insured Municipal Income Fund Inc. for the six months ended September 30, 2003. PERFORMANCE For the six months ended September 30, 2003, Insured Municipal Income Fund Inc.'s net asset value return was 2.07%. On a market price basis, the Fund's return was 3.37%. During the same time period, the Fund's peer group, as measured by the Lipper Insured Municipal Debt Funds (Leveraged) Median, generated net asset value and market price returns of 3.23% and 1.63%, respectively. (For more performance information, please refer to "Performance At A Glance" on page 6). The Fund used leverage during the fiscal period, which was 31.7% of total assets as of September 30, 2003. Leverage can magnify returns on the upside and on the downside, and can create wider dispersions of returns within the Fund's peer group. AN INTERVIEW WITH PORTFOLIO MANAGER WILLIAM VERONDA Q. CAN YOU DESCRIBE THE ECONOMIC ENVIRONMENT DURING THE REPORTING PERIOD? A. As the reporting period began in April 2003, there was a great deal of uncertainty surrounding the economy. First quarter 2003 gross domestic product (GDP) growth came in at 1.4%, unchanged from the prior quarter's figure. Although the war in Iraq had temporarily stimulated the equity markets, its impact on the economy, if any, was at that point uncertain. In addition, heightened concerns about terrorism, widening turmoil in the Middle East and tepid corporate spending appeared to further undermine the economy. The following quarter produced more positive news. The combined effects of significantly higher military spending, an increase in exports and a stronger manufacturing sector fueled an up-tick in economic growth that ultimately resulted in a second quarter 2003 GDP figure of 3.3%. This was followed by a preliminary third quarter 2003 GDP estimate of 7.2%--far higher than anticipated, and the sharpest recorded advance since 1984. Consumer and business spending provided significant impetus behind this figure; consumer spending rose 6.6%, its highest rate since 1988, while business spending surged 11.1%, its best posting since the first quarter of 2000. ---------------------------- INSURED MUNICIPAL INCOME FUND INC. INVESTMENT GOAL: High level of current income exempt from federal income tax, consistent with preservation of capital. PORTFOLIO MANAGER: William Veronda, UBS Global Asset Management (US) Inc. COMMENCEMENT: June 8, 1993 NYSE SYMBOL: PIF DIVIDEND PAYMENTS: Monthly ---------------------------- -------------------------------------------------------------------------------- 1 Insured Municipal Income Fund Inc. Q. WHAT WERE SOME OF THE OTHER FACTORS AFFECTING THE ECONOMY? A. Consumer spending played an integral role in propping up the economy during the period, as the lower interest rate environment engendered a surge in mortgage refinancing. The Bush Administration's tax cut package also appeared to spur on consumers, who now had more disposable income on hand. Conversely, for much of the period, corporations postponed major purchases as they waited for clearer indications of a sustainable economic upturn. More recently, there have been early signs that business spending is slowly improving, although it's not yet clear if spending will increase to the point that it will create new jobs. Q. HOW DID THE FEDERAL RESERVE BOARD (THE "FED") REACT TO THE WEAKENING ECONOMY? A. As the reporting period began, the federal funds rate was at 1.25%--unchanged since November 2002. The Fed had taken the position that it would not implement any further rate cuts, although it would maintain a "heightened surveillance" of the economy in light of the conflict with Iraq. After the war's start, however, and absent any lift in the economy, the Fed made it clear that a future rate cut was likely, citing its view that economic weakness was a greater risk than inflation. This cut occurred during the Fed's June 25, 2003 Federal Open Market Committee meeting, at which time the federal funds rate was lowered by a quarter of a percentage point to 1.0%--its lowest level since 1958. Since that time, the Fed has remained on hold, although it has made clear its willingness to cut rates further if necessary. At its September 16, 2003 meeting, the Fed rationalized this position by noting "an accommodative stance on monetary policy, coupled with robust underlying growth in productivity, is providing important ongoing support to economic activity." Q. HOW DID THE BOND MARKET PERFORM DURING THE SIX-MONTH PERIOD? A. During the first two months of the period, yields fell and prices rose as investors were drawn to the relative safety offered by fixed income securities, including municipal bonds, amid ongoing economic and geopolitical uncertainty. This scenario changed when, beginning in June 2003, fixed income prices began to fall. The combined forces that triggered this selloff were a less-than-hoped-for cut in the fed funds rate, a lessening of concerns regarding the potential for widespread deflation, and increasing fears that an improving economy would lead to higher inflation and a less accommodative fiscal policy. The selloff gained momentum in July before stabilizing during August and September of 2003. Mixed signals in terms of the economy--including stubbornly high unemployment--coupled with heightened geopolitical concerns, helped the bond market recoup some of its losses late in the review period. -------------------------------------------------------------------------------- 2 Insured Municipal Income Fund Inc. Q. MUCH HAS BEEN SAID ABOUT THE COUNTRY'S RISING BUDGET DEFICIT. HOW HAS THIS AFFECTED THE MUNICIPAL BOND MARKET? A. At the federal level, the US Treasury Department estimates that the federal budget deficit was between $370 and $380 billion as of the fiscal year ended September 30, 2003. On a state and local level, budgets that were developed using a "best case" scenario that factored in a strong economy and robust capital gains revenues, operated in an environment characterized by an uneven economy and a lengthy bear market. As a result, tax revenues were less than projected. Although the final numbers have not yet been released, it is projected that over 90% of the states are experiencing shortfalls, and state and local budget deficits could ultimately come in at $50 billion for the fiscal year. Furthermore, many states expect budget shortfalls for fiscal year 2004. While a portion of the state and local shortfalls has been met by drawing down on previous surpluses, these have now been largely depleted. As a result, federal, state and local governments have increased their debt issuance. To a great extent, the marketplace has thus far absorbed this added supply. Q. HOW DID YOU POSITION THE FUND'S PORTFOLIO DURING THE REPORTING PERIOD? A. The Fund's duration was generally in line with that of the Lehman Municipal Bond Index during the period. In terms of sector positioning, we continued to emphasize essential service revenue bonds, including those issued by revenue-producing utilities such as water and sewer authorities. We also liked the fundamentals of certain airport revenue bonds. While there continue to be problems with the airline industry, the need for airfreight and transportation remains, and demand should increase as the economy strengthens. To increase the Fund's level of diversification and maximize investment opportunities, we increased our exposure to investment grade securities whose ratings are among the very highest. These holdings are those that have achieved AAA status on their own merits, without the benefit of insurance. Issuers of these types of credits include Columbia University in New York, which issues bonds through the New York State Dormitory Authority, and Texas A&M University, whose bonds are effectively secured by US Treasuries. Q. CAN YOU PROVIDE SOME EXAMPLES OF NOTEWORTHY PERFORMERS DURING THE PERIOD? A. A number of the Fund's holdings appreciated significantly in price during the period, then were subsequently sold when we felt they had become overvalued. This occurred, for example, with a block of Chicago long-term revenue bonds. Q. CAN YOU GIVE SOME EXAMPLES OF HOLDINGS THAT DID NOT MEET YOUR EXPECTATIONS? A. Securities in the portfolio are constantly monitored to identify possible signs of deteriorating underlying credits. During the period, we sold several holdings that fell into this category, including Birmingham Baptist Medical Center and University of California revenue bonds. -------------------------------------------------------------------------------- 3 Insured Municipal Income Fund Inc. Q. WERE THERE ANY MATERIAL CHANGES TO YOUR INVESTMENT STRATEGY DURING THE PERIOD? A. Up until recently, the Fund had a policy of investing substantially all of its assets in municipal obligations having maturities in excess of 10 years at the time of purchase. In July 2003, the Fund's Board of Directors approved the elimination of this restriction, allowing the Fund increased freedom to invest in shorter-term securities. As a result, while we anticipate that the majority of the Fund's portfolio will retain its longer-term bias, this change will allow us greater flexibility in pursuing compelling opportunities in the marketplace. For example, in the time since the policy change went into effect, we purchased Metropolitan Pier & Expo District Illinois bonds, due in 2010, which we believe are very attractively priced and offer an attractive effective yield. Q. HOW DO YOU ANTICIPATE POSITIONING THE FUND'S PORTFOLIO GOING FORWARD? A. Looking ahead, we anticipate keeping the Fund's duration close to that of the Lehman Municipal Bond Index. As we've seen in recent months, interest rate movements can occur rapidly. Given the mixed signals surrounding the economy, we would expect this type of volatility to continue in the months ahead. In terms of the underlying portfolio, we expect to continue our long-held emphasis on essential service revenue bonds, especially in light of the mounting budget deficits. We also intend to maintain our high-quality bias, and to continue to employ careful credit analysis on securities being considered for the Fund, as well as on those currently held in the portfolio. -------------------------------------------------------------------------------- 4 Insured Municipal Income Fund Inc. Our ultimate objective in managing your investments is to help you successfully meet your financial goals. We thank you for your continued support and welcome any comments or questions you may have. For additional information on UBS funds,* please contact your financial advisor or visit us at www.ubs.com. Sincerely, /s/ Joseph A. Varnas JOSEPH A. VARNAS PRESIDENT Insured Municipal Income Fund Inc. MANAGING DIRECTOR UBS Global Asset Management (US) Inc. /s/ William Veronda WILLIAM VERONDA PORTFOLIO MANAGER Insured Municipal Income Fund Inc. EXECUTIVE DIRECTOR UBS Global Asset Management (US) Inc. This letter is intended to assist shareholders in understanding how the Fund performed during the six months ended September 30, 2003, and reflects our views at the time of its writing. Of course, these views may change in response to changing circumstances, and they do not guarantee the future performance of the markets or the Fund. We encourage you to consult your financial advisor regarding your personal investment program. * Mutual funds are sold by prospectus only. The prospectuses for the funds contain more complete information regarding risks, charges and expenses, and should be read carefully before investing. -------------------------------------------------------------------------------- 5 Insured Municipal Income Fund Inc. PERFORMANCE AT A GLANCE AVERAGE ANNUAL RETURN, PERIODS ENDED 9/30/03 NET ASSET VALUE RETURN 6 MONTHS 1 YEAR 5 YEARS 10 YEARS -------------------------------------------------------------------------------- Insured Municipal Income Fund Inc. 2.07% 3.51% 5.13% 5.41% -------------------------------------------------------------------------------- Lipper Insured Municipal Debt Funds (Leveraged) Median 3.23% 4.41% 5.76% 6.09% -------------------------------------------------------------------------------- MARKET PRICE RETURN -------------------------------------------------------------------------------- Insured Municipal Income Fund Inc. 3.37% 2.65% 5.60% 5.54% -------------------------------------------------------------------------------- Lipper Insured Municipal Debt Funds (Leveraged) Median 1.63% 3.46% 5.40% 6.31% -------------------------------------------------------------------------------- Past performance does not predict future performance. The return and principal value of an investment will fluctuate, so that an investor's shares, when sold, may be worth more or less than their original cost. NAV return assumes, for illustration only, that dividends were reinvested at the net asset value on the ex-dividend dates. Market price return assumes dividends were reinvested under the Dividend Reinvestment Plan. NAV and market price returns for periods of less than one year are cumulative. Returns do not include brokerage commissions or taxes paid on realized capital gains. Lipper peer group data calculated by Lipper Inc.; used with permission. The Lipper Median is the return of the fund that places in the middle of the peer group. SHARE PRICE, DIVIDEND AND YIELDS AS OF 9/30/03 -------------------------------------------------------------------------------- Market Price $14.03 ................................................................................. Net Asset Value (per share applicable to common shareholders) $15.66 ................................................................................. 12-Month Net Investment Income Dividend (ended 9/30/03) $0.840 ................................................................................. September 2003 Dividend $0.070 ................................................................................. Market Yield* 5.99% ................................................................................. NAV Yield* 5.36% ................................................................................. IPO Yield* 5.60% ................................................................................. * Market yield is calculated by multiplying the September dividend by 12 and dividing by the month-end market price. NAV yield is calculated by multiplying the September dividend by 12 and dividing by the month-end net asset value. IPO yield is calculated by multiplying the September dividend by 12 and dividing by the initial public offering price of $15 per share. Prices and yields will vary. -------------------------------------------------------------------------------- 6 Insured Municipal Income Fund Inc. PORTFOLIO STATISTICS CHARACTERISTICS 9/30/03 3/31/03 9/30/02 ----------------------------------------------------------------------------------------------------- Net Assets Applicable to Common Shareholders (mm) $323.1 $325.1 $329.3 ...................................................................................................... Weighted Average Maturity* 13.5 yrs 14.1 yrs 12.9 yrs ...................................................................................................... Weighted Average Duration* 5.2 yrs 4.4 yrs 3.2 yrs ...................................................................................................... Weighted Average Coupon* 4.9% 5.4% 5.5% ...................................................................................................... AMT Paper** 0.0% 0.0% 0.0% ...................................................................................................... Leverage** 31.7% 31.1% 31.0% ...................................................................................................... Callable/Maturing Within Five Years* 14.7% 16.6% 26.5% ...................................................................................................... Callable/Maturing Beyond Five Years* 85.3% 83.4% 73.5% ...................................................................................................... CREDIT QUALITY*** 9/30/03 3/31/03 9/30/02 ...................................................................................................... AAA/Aaa 128.8% 142.6% 140.5% ...................................................................................................... SP-1/MIG-1 1.3 -- 2.8 ...................................................................................................... A1/P1 14.6 3.7 0.3 ...................................................................................................... Liabilities in Excess of Other Assets -- (0.2) -- ...................................................................................................... Other Assets in Excess of Liabilities 1.7 -- 2.0 ...................................................................................................... Liquidation Value of Auction Preferred Shares (46.4) (46.1) (45.6) ...................................................................................................... TOTAL 100.0% 100.0% 100.0% ...................................................................................................... TOP 10 STATES*** 9/30/03 3/31/03 9/30/02 ----------------------------------------------------------------------------------------------------- Texas 27.6% Texas 28.3% Texas 27.0% ...................................................................................................... California 21.0 Illinois 17.9 Illinois 17.7 ...................................................................................................... Illinois 19.1 Pennsylvania 13.4 Pennsylvania 13.9 ...................................................................................................... New York 13.0 Rhode Island 10.5 Rhode Island 10.2 ...................................................................................................... Massachusetts 7.0 California 8.6 Indiana 6.7 ...................................................................................................... Rhode Island 6.2 Indiana 7.4 Kentucky 5.7 ...................................................................................................... Washington 6.1 North Carolina 7.0 Washington 5.2 ...................................................................................................... Nevada 5.6 Alabama 4.8 California 4.9 ...................................................................................................... North Carolina 5.5 Michigan 3.9 Alabama 4.6 ...................................................................................................... Pennsylvania 4.4 Massachusetts 3.9 Michigan 4.6 ...................................................................................................... TOTAL 115.5% 105.7% 100.5% ...................................................................................................... TOP FIVE SECTORS*** 9/30/03 3/31/03 9/30/02 ...................................................................................................... Power 33.6% Power 32.5% Water 28.9% ...................................................................................................... Water 30.8 Pre-refunded 20.1 Power 27.1 ...................................................................................................... Escrow-to-maturity 16.1 Escrow-to-maturity 16.8 Hospital 22.7 ...................................................................................................... Hospital 10.1 Water 14.6 General Obligations 14.1 ...................................................................................................... Airport 8.4 Hospital 9.8 Sales Tax 13.4 ...................................................................................................... TOTAL 99.0% 93.8% 106.2% ...................................................................................................... * Weightings represent percentages of portfolio assets as of the dates indicated. The Fund's portfolio is actively managed and its composition will vary over time. ** As a percentage of total assets as of the dates indicated. *** As a percentage of net assets applicable to common shareholders as of the dates indicated. Credit quality ratings designated by Standard & Poor's Rating Group and Moody's Investor Services, Inc. Both are independent rating agencies. -------------------------------------------------------------------------------- 7 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--128.83% ======================================================================================================= ALABAMA--1.28% $ 1,590 Alabama Water Pollution Control Authority Revolving Fund Loan- Series A (AMBAC Insured) Aaa AAA 08/15/17 6.750% $1,745,597 ........................................................................................................ 2,265 Jefferson County Sewer Revenue-Series A (FGIC Insured) Aaa AAA 02/01/27 5.375 2,381,059 ........................................................................................................ 4,126,656 ------------------------------------------------------------------------------------------------------- CALIFORNIA--20.97% 10,000 California State Department of Water Resources Power Supply Revenue-Series A (AMBAC Insured) Aaa AAA 05/01/16 5.500 11,182,700 ........................................................................................................ 4,000 California State Department of Water Resources Water Revenue-Series W (FSA Insured) Aaa AAA 12/01/14 5.500 4,645,680 ........................................................................................................ 30 California State General Obligation (FGIC Insured) Aaa AAA 11/01/12 7.000 32,471 ........................................................................................................ 3,125 Contra Costa Water District Water Revenue-Series L (FSA Insured) Aaa AAA 10/01/19 5.000 3,301,219 ........................................................................................................ 5,000 Contra Costa Water District Water Revenue-Refunding- Series M (FSA Insured) Aaa AAA 10/01/18 5.000 5,353,500 ........................................................................................................ 2,000 Long Beach Finance Authority Lease Revenue-Aquarium of the South Pacific (AMBAC Insured) Aaa AAA 11/01/15 5.500 2,258,480 ........................................................................................................ 8,475 Los Angeles County Sanitation Districts Financing Authority Revenue-Capital Project- Series A (FSA Insured) Aaa AAA 10/01/20 5.000 8,917,988 ........................................................................................................ 5,000 Los Angeles General Obligation-Series A (MBIA Insured) Aaa AAA 09/01/21 5.000 5,196,700 ........................................................................................................ 3,000 Los Angeles University School District-Series A (FSA Insured) Aaa AAA 07/01/20 5.250 3,234,810 ........................................................................................................ 7,000 Los Angeles Water & Power Revenue-Power Systems- Series A-A-1 (FSA Insured) Aaa AAA 07/01/21 5.250 7,459,550 ........................................................................................................ 3,000 Los Angeles Water & Power Revenue-Power Systems- Series A-SubSeries A-2 (MBIA Insured) Aaa AAA 07/01/16 5.000 3,257,790 ........................................................................................................ -------------------------------------------------------------------------------- 8 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- CALIFORNIA--(CONCLUDED) $ 1,000 Marin Municipal Water District Water Revenue (AMBAC Insured) Aaa AAA 07/01/18 5.000% $1,063,300 ........................................................................................................ 7,000 Sacramento Municipal Utility Revenue-Mud-Series R (MBIA Insured) Aaa AAA 08/15/19 5.000 7,425,250 ........................................................................................................ 4,000 San Francisco City & County Airport Commission International Airport- Second Series 27B (FGIC Insured) Aaa AAA 05/01/15 5.250 4,409,480 ........................................................................................................ 67,738,918 ------------------------------------------------------------------------------------------------------- DISTRICT OF COLUMBIA--1.39% 4,000 District of Columbia Hospital Revenue-Medlantic Healthcare-Series A (Escrowed to Maturity) (MBIA Insured) Aaa AAA 08/15/14 5.750 4,500,960 ........................................................................................................ GEORGIA--1.01% 1,015 Columbus Building Authority Lease Revenue-Series A (FGIC Insured) Aaa AAA 01/01/16 5.250 1,143,184 ........................................................................................................ 2,000 Georgia Municipal Electric Authority Power Revenue- Series A (FSA Insured) Aaa AAA 01/01/18 5.000 2,134,140 ........................................................................................................ 3,277,324 ------------------------------------------------------------------------------------------------------- ILLINOIS--16.22% 8,400 Chicago O'Hare International Airport Revenue-Second Lien-Series A (MBIA Insured) Aaa AAA 01/01/15 6.375 9,067,632 ........................................................................................................ 3,000 Chicago O'Hare International Airport Revenue-Second Lien-Series B (MBIA Insured) Aaa AAA 01/01/15 5.500 3,069,420 ........................................................................................................ 7,325 Chicago Project & Refunding- Series A (AMBAC Insured) Aaa AAA 01/01/42 5.000 7,349,685 ........................................................................................................ 1,000 Chicago Project & Refunding- Series A (MBIA Insured) Aaa AAA 01/01/14 5.500 1,121,500 ........................................................................................................ 4,600 Chicago Public Building Commission-Building Revenue-Series A (Pre-refunded with U.S. Government Securities to 12/01/03 @ 102) (MBIA Insured) Aaa AAA 12/01/18 5.750 4,729,214 ........................................................................................................ 4,000 Illinois Development Finance Authority Pollution Control Revenue-Commonwealth Edison Co. Project-Series D (AMBAC Insured) Aaa AAA 03/01/15 6.750 4,373,280 ........................................................................................................ -------------------------------------------------------------------------------- 9 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- ILLINOIS--(CONCLUDED) $ 4,500 Illinois Health Facilities Authority Revenue- Franciscan Sisters Health Care-Series C (Escrowed to Maturity) (MBIA Insured) Aaa AAA 09/01/18 5.750% $5,308,425 ........................................................................................................ 2,000 Illinois Sales Tax Revenue- Series 2 (FGIC Insured) Aaa AAA 06/15/16 5.500 2,309,440 ........................................................................................................ 3,000 Kane McHenry Cook & De Kalb Counties-United School District No. 300 (MBIA Insured) Aaa AAA 12/01/15 5.500 3,383,730 ........................................................................................................ 5,000 Metropolitan Pier & Exposition Authority-Illinois Dedicated State Tax Capital Appreciation Series A-2002 (FGIC Insured) Aaa AAA 06/15/10 6.650# 3,985,300 ........................................................................................................ 2,395 Metropolitan Pier & Exposition Authority-Illinois Dedicated State Tax-Pre-refunded- Series A-2002 (FGIC Insured) Aaa AAA 12/15/23 5.500 2,707,069 ........................................................................................................ 4,850 Metropolitan Pier & Exposition Authority-Illinois McCormick Place Expansion-Series A (MBIA Insured) Aaa AAA 06/15/42 5.250 4,994,287 ........................................................................................................ 52,398,982 ------------------------------------------------------------------------------------------------------- INDIANA--0.34% 1,000 Indiana University Revenue- Student Fee-Series 0 (FGIC Insured) Aaa AAA 08/01/18 5.250 1,095,660 ........................................................................................................ MAINE--2.52% 7,890 Maine Health & Higher Educational Facilities Authority Revenue- Series A (Escrowed to Maturity) (FSA Insured) Aaa AAA 07/01/23 5.500 8,098,006 ........................................................................................................ 30 Maine Health & Higher Educational Facilities Authority Revenue- Series B (Pre-refunded with U.S. Government Securities to 07/01/04 @ 102) (FSA Insured) Aaa AAA 07/01/24 7.000 31,941 ........................................................................................................ 8,129,947 ------------------------------------------------------------------------------------------------------- MASSACHUSETTS--5.37% 10,000 Massachusetts State Health & Educational Facilities Authority Revenue- Massachusetts Institute of Technology-Series L Aaa AAA 07/01/23 5.000 10,676,200 ........................................................................................................ -------------------------------------------------------------------------------- 10 Insured Municipal Income Fund Inc. Portfolio of Investments-- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- MASSACHUSETTS--(CONCLUDED) $ 2,800 MASSACHUSETTS WATER POLLUTION ABATEMENT TRUST MWRA PROGRAM-SERIES A AAA AAA 08/01/20 5.250% $3,021,424 ........................................................................................................ 3,390 Massachusetts Water Pollution Abatement Trust Pool Program Bonds-Series-8 Aaa AAA 08/01/17 5.000 3,655,776 ........................................................................................................ 17,353,400 ------------------------------------------------------------------------------------------------------- MICHIGAN--3.67% 4,475 Eastern Michigan University Revenue-Series A (FGIC Insured) Aaa AAA 06/01/19 5.000 4,764,174 ........................................................................................................ 2,880 Michigan Municipal Bond Authority Clean Water Revenue Fund Aaa AAA 10/01/19 5.250 3,143,088 ........................................................................................................ 3,625 Michigan Municipal Bond Authority Clean Water Revenue Revolving Fund Aaa AAA 10/01/18 5.250 3,960,784 ........................................................................................................ 11,868,046 ------------------------------------------------------------------------------------------------------- MINNESOTA--1.65% 5,015 Minneapolis & St. Paul Metropolitan Airports Commission Airport Revenue-SubSeries A (MBIA Insured) Aaa AAA 01/01/19 5.000 5,315,699 ........................................................................................................ MISSOURI--1.63% 1,740 St. Louis Airport Revenue- Capital Improvement Project-Series A (MBIA Insured) Aaa AAA 07/01/15 5.375 1,927,294 ........................................................................................................ 2,035 St. Louis Airport Revenue- Capital Improvement Project-Series A (MBIA Insured) Aaa AAA 07/01/16 5.375 2,247,698 ........................................................................................................ 1,000 St. Louis Airport Revenue- Capital Improvement Project-Series A (MBIA Insured) Aaa AAA 07/01/18 5.375 1,089,840 ........................................................................................................ 5,264,832 ------------------------------------------------------------------------------------------------------- NEVADA--3.64% 4,000 Washoe County Gas & Water Facilities Revenue- Sierra Pacific Power Co. Project-Series B (MBIA Insured) Aaa AAA 06/01/23 5.900 4,092,520 ........................................................................................................ 7,500 Washoe County Water Facilities Revenue-Sierra Pacific Power Co. Project-Series A (MBIA Insured) Aaa AAA 06/01/23 5.900 7,673,475 ........................................................................................................ 11,765,995 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 11 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- NEW JERSEY--1.65% $ 5,000 Salem County Industrial Pollution Control Finance Authority Revenue-Public Service Electric & Gas- Series D (MBIA Insured) Aaa AAA 10/01/29 6.550% $5,340,500 ------------------------------------------------------------------------------------------------------- NEW MEXICO--2.78% 8,850 Gallup Pollution Control Revenue-Plains Electric Generation (MBIA Insured) Aaa AAA 08/15/17 6.650 8,977,794 ------------------------------------------------------------------------------------------------------- NEW YORK--5.74% 2,920 New York State Dormitory Authority Revenue- Columbia University- Series A Aaa AAA 07/01/16 5.125 3,237,696 ........................................................................................................ 3,000 New York State Dormitory Authority Revenue-Sloan Kettering Center-Series 1 (MBIA Insured) Aaa AAA 07/01/16 5.000 3,252,720 ........................................................................................................ 2,000 Long Island Power Authority Electric System Revenue- Series A (FSA Insured) Aaa AAA 12/01/22 5.125 2,085,840 ........................................................................................................ 5,000 Metropolitan Transportation Authority Revenue-Series A (AMBAC Insured) Aaa AAA 11/15/16 5.500 5,650,050 ........................................................................................................ 4,000 Metropolitan Transportation Authority Revenue-Series A (FGIC Insured) Aaa AAA 11/15/17 5.000 4,326,720 ........................................................................................................ 18,553,026 ------------------------------------------------------------------------------------------------------- NORTH CAROLINA--5.55% 15,000 North Carolina Eastern Municipal Power Agency Power System Revenue- (AMBAC Insured) Aaa AAA 01/01/18 6.000 17,926,050 ------------------------------------------------------------------------------------------------------- OHIO--0.66% 1,870 Ohio Water Development Authority-Pollution Control Facilities Revenue-Water Control Loan Fund-Water Quality Series (MBIA Insured) Aaa AAA 06/01/13 5.500 2,118,018 ------------------------------------------------------------------------------------------------------- PENNSYLVANIA--3.86% 6,130 North Wales Water Authority- Series A (FGIC Insured) Aaa AAA 11/01/16 5.500 6,150,781 ........................................................................................................ 1,000 Philadelphia General Obligation (FSA Insured) Aaa AAA 03/15/13 5.250 1,104,910 ........................................................................................................ 1,000 Philadelphia General Obligation (FSA Insured) Aaa AAA 03/15/14 5.250 1,103,260 ........................................................................................................ 3,750 Philadelphia School District- Series A (MBIA Insured) Aaa AAA 04/01/16 5.250 4,118,437 ........................................................................................................ 12,477,388 ------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 12 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- RHODE ISLAND--6.15% $10,000 Rhode Island Depositors Economic Protection Corp. Special Obligation-Series A (Escrowed to Maturity) (FSA Insured) NR AAA 08/01/14 5.750% $11,914,500 ........................................................................................................ 7,000 Rhode Island Depositors Economic Protection Corp. Special Obligation-Series B (Pre-refunded with U.S. Government Securities to 02/01/11 @ 100) (MBIA Insured) Aaa AAA 08/01/21 5.250 7,959,840 ........................................................................................................ 19,874,340 ------------------------------------------------------------------------------------------------------- SOUTH CAROLINA--1.18% 2,625 Charleston County Hospital Facilities Revenue-Bon Secours Health System Project (Escrowed to Maturity) (FSA Insured) Aaa AAA 08/15/25 5.625 2,685,611 ........................................................................................................ 1,000 Myrtle Beach Water & Sewer Revenue System (FGIC Insured) Aaa AAA 03/01/15 5.375 1,133,010 ........................................................................................................ 3,818,621 ------------------------------------------------------------------------------------------------------- TEXAS--27.52% 7,945 Bexar Metropolitan Water District Waterworks System Revenue-(MBIA Insured) Aaa AAA 05/01/22 5.875 8,582,348 ........................................................................................................ 2,000 Corpus Christi Utilities System Revenue-Refunding & Improvement (FSA Insured) Aaa AAA 07/15/17 5.250 2,194,520 ........................................................................................................ 2,120 Frisco Certificates Obligation Series A (FGIC Insured) Aaa AAA 02/15/14 5.250 2,324,580 ........................................................................................................ 3,000 Harris County Toll Road Sub-Lien (FGIC Insured) Aaa AAA 08/01/09 6.000 3,536,970 ........................................................................................................ 6,000 Houston Water & Sewer System Revenue-Junior Lien-Series A (FSA Insured) Aaa AAA 12/01/15 5.500 6,755,220 ........................................................................................................ 7,000 Houston Water & Sewer System Revenue-Junior Lien-Series C (FGIC Insured) Aaa AAA 12/01/22 5.250 7,364,350 ........................................................................................................ 2,000 Jefferson County (FGIC Insured) Aaa AAA 08/01/20 5.250 2,145,940 ........................................................................................................ 10,000 Lubbock Health Facilities Development Corp.- Hospital Revenue- Methodist Hospital- Series A (Pre-refunded with U.S. Government Securities to 12/01/05 @ 100) (AMBAC Insured) Aaa AAA 12/01/22 5.900 11,004,700 ........................................................................................................ -------------------------------------------------------------------------------- 13 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONTINUED) ------------------------------------------------------------------------------------------------------- TEXAS--(CONCLUDED) $ 9,005 Matagorda County Navigation District No. 1 Revenue- Houston Light & Power- Series A (AMBAC Insured) Aaa AAA 03/01/27 6.700% $9,131,791 ........................................................................................................ 7,900 North Texas Turnpike Authority Dallas North Turnpike Systems Revenue- Series A (AMBAC Insured) Aaa AAA 01/01/21 5.000 8,213,946 ........................................................................................................ 13,000 San Antonio Electric & Gas Revenue-(Escrowed to Maturity) Aaa AAA 02/01/19 5.650 15,227,680 ........................................................................................................ 155 San Antonio Water Revenue (MBIA Insured) Aaa AAA 05/15/16 6.000 177,924 ........................................................................................................ 720 San Antonio Water Revenue-(Pre-refunded with U.S. Government Securities to 05/15/07 @ 100) (MBIA Insured) Aaa AAA 05/15/16 6.000 849,341 ........................................................................................................ 6,110 Texas A&M University Fund Refunded Aaa NR 07/01/17 5.250 6,783,933 ........................................................................................................ 4,170 Williamson County General Obligation (FSA Insured) Aaa AAA 02/15/17 5.500 4,629,826 ........................................................................................................ 88,923,069 ------------------------------------------------------------------------------------------------------- UTAH--2.07% 2,000 Utah Municipal Power System Revenue-Payson Power Project-Series A (FSA Insured) Aaa AAA 04/01/17 5.250 2,204,340 ........................................................................................................ 2,085 Utah Municipal Power System Revenue-Payson Power Project-Series A (FSA Insured) Aaa AAA 04/01/18 5.000 2,223,006 ........................................................................................................ 2,055 Utah Water Finance Agency Revenue-Pooled Loan Financing Program-Series C (AMBAC Insured) Aaa NR 10/01/18 5.250 2,244,348 ........................................................................................................ 6,671,694 ------------------------------------------------------------------------------------------------------- WASHINGTON--6.13% 2,220 Cowlitz County School District No. 458 Kelso Aaa NR 12/01/15 5.750 2,553,000 ........................................................................................................ 1,000 Cowlitz County School District No. 458 Kelso Aaa NR 12/01/18 5.750 1,131,780 ........................................................................................................ 2,000 Energy Northwest Electric Revenue-Columbia Generator Station- Series F (MBIA Insured) Aaa AAA 07/01/18 5.000 2,133,440 ........................................................................................................ 2,175 Energy Northwest Electric Revenue-Project No. 1- Series A (MBIA Insured) Aaa AAA 07/01/15 5.750 2,496,878 ........................................................................................................ -------------------------------------------------------------------------------- 14 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- LONG-TERM MUNICIPAL BONDS--(CONCLUDED) ------------------------------------------------------------------------------------------------------- WASHINGTON--(CONCLUDED) $ 2,000 KING COUNTY SCHOOL DISTRICT NO. 403 RENTON (FGIC INSURED) AAA AAA 12/01/14 5.250% $2,192,800 ........................................................................................................ 5,000 Seattle Water Systems Revenue Aaa AAA 09/01/19 5.000 5,313,250 ........................................................................................................ 3,625 Snohomish County School District No. 015 Edmonds (FGIC Insured) Aaa AAA 12/01/15 5.250 3,974,450 ........................................................................................................ 19,795,598 ------------------------------------------------------------------------------------------------------- WEST VIRGINIA--3.88% 10,000 Marshall County Pollution Control Revenue-Ohio Power Project-Series D (MBIA Insured) Aaa AAA 04/01/22 5.900 10,233,900 ........................................................................................................ 2,245 West Virginia Water Development Authority Water Development Revenue-Loan Program II Series A-II (FSA Insured) Aaa AAA 11/01/29 5.750 2,299,105 ........................................................................................................ 12,533,005 ------------------------------------------------------------------------------------------------------- WISCONSIN--1.97% 1,500 Wisconsin State Health & Educational Facilities Authority Revenue-Bellin Memorial Hospital (AMBAC Insured) Aaa AAA 02/15/19 5.500 1,534,830 ........................................................................................................ 3,500 Wisconsin State Health & Educational Facilities Authority Revenue- Hospital Sisters Health Services (MBIA Insured) Aaa AAA 06/01/18 5.375 3,580,780 ........................................................................................................ 1,105 Ladysmith-Hawkins School District Refunding (FGIC Insured) Aaa NR 04/01/20 5.500 1,250,529 ........................................................................................................ 6,366,139 ------------------------------------------------------------------------------------------------------- Total Long-Term Municipal Bonds (cost--$398,623,354) 416,211,661 ------------------------------------------------------------------------------------------------------- SHORT-TERM MUNICIPAL NOTES--15.92% ------------------------------------------------------------------------------------------------------- DISTRICT OF COLUMBIA--0.09% 300 District of Columbia Revenue-Multi-Modal Medlantic-Series B (FSA Insured) VMIG-1 A-1+ 10/01/03 1.250* 300,000 ------------------------------------------------------------------------------------------------------- ILLINOIS--2.88% 7,000 Illinois Health Facilities Authority Revenue- Resurrection Health- Series A (FSA Insured) VMIG-1 A-1 10/01/03 1.200* 7,000,000 ........................................................................................................ -------------------------------------------------------------------------------- 15 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- SHORT-TERM MUNICIPAL NOTES--(CONTINUED) ------------------------------------------------------------------------------------------------------- ILLINOIS--(CONCLUDED) $ 2,100 Illinois Health Facilities Authority Revenue- University of Chicago Hospital Project-Series C (MBIA Insured) VMIG-1 A-1+ 10/01/03 1.150%* $2,100,000 ........................................................................................................ 200 Illinois Health Facilities Authority Revenue- University of Chicago Hospitals (MBIA Insured) VMIG-1 A-1 10/01/03 1.250* 200,000 ........................................................................................................ 9,300,000 ------------------------------------------------------------------------------------------------------- LOUISIANA--0.20% 650 Louisiana Public Facilities Authority Revenue- Industrial Development- Kenner Hotel Ltd. P1 NR 10/01/03 1.150* 650,000 ------------------------------------------------------------------------------------------------------- MASSACHUSETTS--1.64% 5,300 Massachusetts State Health & Education Facilities Authority Revenue-Capital Assets Program-Series D (MBIA Insured) VMIG-1 NR 10/01/03 1.150* 5,300,000 ------------------------------------------------------------------------------------------------------- MISSOURI--0.69% 2,240 Missouri State Health & Educational Facilities Authority Health Facilities Revenue-Cox Health Systems (AMBAC Insured) VMIG-1 A-1 10/01/03 1.230* 2,240,000 ------------------------------------------------------------------------------------------------------- NEVADA--1.92% 6,200 CLARK COUNTY SCHOOL DISTRICT-SERIES A (FSA INSURED) VMIG-1 A-1+ 10/01/03 1.150* 6,200,000 ------------------------------------------------------------------------------------------------------- NEW YORK--7.26% 1,900 New York City General Obligation-Series B-2- SubSeries B-5 (MBIA Insured) VMIG-1 A-1+ 10/01/03 1.150* 1,900,000 ........................................................................................................ 2,800 New York City General Obligation-Series H- SubSeries H-2 (MBIA Insured) VMIG-1 A-1 10/01/03 1.150* 2,800,000 ........................................................................................................ 8,600 New York City Municipal Water Finance Authority Water & Sewer Systems Revenue-Series A (FGIC Insured) VMIG-1 A-1+ 10/01/03 1.200* 8,600,000 ........................................................................................................ 10,160 New York City Municipal Water Finance Authority Water & Sewer Systems Revenue-Series C (FGIC Insured) VMIG1 A-1+ 10/01/03 1.150* 10,160,000 ......................................................................................................... 23,460,000 -------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 16 Insured Municipal Income Fund Inc. Portfolio of Investments -- September 30, 2003 (unaudited) PRINCIPAL AMOUNT MOODY'S S&P MATURITY INTEREST (000) RATING RATING DATES RATES VALUE ------------------------------------------------------------------------------------------------------- SHORT-TERM MUNICIPAL BONDS--(CONCLUDED) ------------------------------------------------------------------------------------------------------- OKLAHOMA--0.62% $ 1,990 Oklahoma Industrial Authority Revenue- Refunding Integris Baptist-Series B (MBIA Insured) VMIG-1 A-1+ 10/01/03 1.250%* $1,990,000 ------------------------------------------------------------------------------------------------------- PENNSYLVANIA--0.53% 1,700 PHILADELPHIA HOSPITALS & HIGHER EDUCATION FACILITIES AUTHORITY REVENUE-CHILDRENS HOSPITAL PROJECT-SERIES D (MBIA INSURED) VMIG-1 A-1+ 10/01/03 1.220* 1,700,000 ------------------------------------------------------------------------------------------------------- TEXAS--0.09% 100 Bell County Health Facilities Development Corp. Revenue-Scott & White Memorial Hospital- Series B-2 (MBIA Insured) VMIG-1 A-1+ 10/01/03 1.250* 100,000 ........................................................................................................ 200 Harris County Health Facilities Development Corporate Revenue- Methodist Hospital NR A-1+ 10/01/03 1.250* 200,000 ........................................................................................................ 300,000 ------------------------------------------------------------------------------------------------------- Total Short-Term Municipal Notes (cost--$51,440,000) 51,440,000 ------------------------------------------------------------------------------------------------------- Total Investments (cost--$450,063,354)--144.75% 467,651,661 ........................................................................................................ Other assets in excess of other liabilities--1.68% 5,432,427 ........................................................................................................ Liquidation value of Auction Preferred Shares--(46.43%) (150,000,000) ........................................................................................................ Net Assets applicable to common shareholders--100.00% $323,084,088 ------------------------------------------------------------------------------------------------------- * Variable rate demand notes are payable on demand. The maturity dates shown are the next interest rate reset dates; the interest rates shown are the current rates as of September 30, 2003. # Interest rates shown reflect yield to maturity at purchase date for zero coupon bonds. NR -- Not Rated. AMBAC -- American Municipal Bond Assurance Corporation FGIC -- Financial Guaranty Insurance Company FSA -- Financial Security Assurance Incorporated MBIA -- Municipal Bond Investors Assurance See accompanying notes to financial statements -------------------------------------------------------------------------------- 17 Insured Municipal Income Fund Inc. Statement of Assets and Liabilities -- September 30, 2003 (unaudited) ASSETS: Investments in securities, at value (cost--$450,063,354) $467,651,661 -------------------------------------------------------------------------------- Cash 35,325 ................................................................................. Interest receivable 5,914,658 ................................................................................. Other assets 3,144 ................................................................................. Total assets 473,604,788 ................................................................................. LIABILITIES: Payable to investment advisor and administrator 266,797 ................................................................................. Dividends payable to auction preferred shareholders 38,160 ................................................................................. Accrued expenses and other liabilities 215,743 ................................................................................. Total liabilities 520,700 ................................................................................. Auction Preferred Shares Series A, B, C & D--3,000 non- participating shares authorized, issued and outstanding; $0.001 par value; $50,000 liquidation value per share 150,000,000 ................................................................................. Net assets applicable to common shareholders $323,084,088 ................................................................................. NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS: Common Stock--$0.001 par value; 199,997,000 shares authorized; 20,628,363 shares issued and outstanding 302,699,678 ................................................................................. Undistributed net investment income 2,805,296 ................................................................................. Accumulated net realized loss from investment transactions (9,193) ................................................................................. Net unrealized appreciation of investments 17,588,307 ................................................................................. Net assets applicable to common shareholders $323,084,088 ................................................................................. Net asset value per common share ($323,084,088 applicable to 20,628,363 common shares outstanding) $15.66 -------------------------------------------------------------------------------- See accompanying notes to financial statements -------------------------------------------------------------------------------- 18 Insured Municipal Income Fund Inc. Statement of Operations For the Six Months Ended September 30, 2003 (unaudited) -------------------------------------------------------------------------------- INVESTMENT INCOME: Interest $11,005,288 ................................................................................. EXPENSES: Investment advisory and administration fees 2,132,133 ................................................................................. Auction Preferred Shares expenses 168,944 ................................................................................. Custody and accounting 132,218 ................................................................................. Reports and notices to shareholders 30,275 ................................................................................. Professional fees 30,132 ................................................................................. Transfer agency fees 5,390 ................................................................................. Directors' fees 4,340 ................................................................................. Other expenses 9,484 ................................................................................. 2,512,916 ................................................................................. Less: Fee waivers from investment advisor and administrator (362,019) ................................................................................. Net expenses 2,150,897 ................................................................................. Net investment income 8,854,391 -------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAINS FROM INVESTMENT ACTIVITIES: Net realized gains from investment transactions 5,571,599 ................................................................................. Net change in unrealized appreciation/depreciation of investments (7,010,602) ................................................................................. Net realized and unrealized loss from investment activities (1,439,003) ................................................................................. Dividends to auction preferred shareholders from net investment income (727,505) ................................................................................. Net increase in net assets applicable to common shareholders resulting from operations $6,687,883 -------------------------------------------------------------------------------- See accompanying notes to financial statements -------------------------------------------------------------------------------- 19 Insured Municipal Income Fund Inc. Statement of Changes in Net Assets Applicable to Common Shareholders For the Six Months Ended For the September 30, 2003 Year Ended (unaudited) March 31, 2003 -------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $8,854,391 $20,080,569 ................................................................................. Net realized gains from investment transactions 5,571,599 6,118,115 ................................................................................. Net change in unrealized appreciation/ depreciation of investments (7,010,602) 5,616,365 ................................................................................. Dividends to auction preferred shareholders from net investment income (727,505) (1,978,974) ................................................................................. Net increase in net assets applicable to common shareholders resulting from operations 6,687,883 29,836,075 ................................................................................. DIVIDENDS TO COMMON SHAREHOLDERS FROM: Net investment income (8,663,913) (17,327,825) ................................................................................. Net increase (decrease) in net assets applicable to common shareholders (1,976,030) 12,508,250 ................................................................................. NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS: Beginning of period 325,060,118 312,551,868 ................................................................................. End of period (including undistributed net investment income of $2,805,296 and $3,342,323, respectively) $323,084,088 $325,060,118 -------------------------------------------------------------------------------- See accompanying notes to financial statements -------------------------------------------------------------------------------- 20 Insured Municipal Income Fund Inc. Notes to Financial Statements (unaudited) ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Insured Municipal Income Fund Inc. (the "Fund") was incorporated in Maryland on February 18, 1993, and is registered with the Securities and Exchange Commission under the Investment Company Act of 1940, as amended, as a closed-end diversified management investment company. The Fund's investment objective is to achieve a high level of current income that is exempt from federal income tax, consistent with the preservation of capital. The preparation of financial statements in accordance with accounting principles generally accepted in the United States requires the Fund's management to make estimates and assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from those estimates. The following is a summary of significant accounting policies: VALUATION OF INVESTMENTS--The Fund calculates its net asset value based on the current market value, where available, for its portfolio securities. The Fund normally obtains market values for its securities from independent pricing sources and broker-dealers. Independent pricing sources may use reported last sale prices, current market quotations or valuations from computerized "matrix" systems that derive values based on comparable securities. If a market value is not available from an independent pricing source for a particular security, that security is valued at fair value as determined in good faith by or under the direction of the Fund's Board of Directors (the "Board"). The amortized cost method of valuation, which approximates market value, generally is used to value short-term debt instruments with sixty days or less remaining to maturity, unless the Board determines that this does not represent fair value. INVESTMENT TRANSACTIONS AND INVESTMENT INCOME--Investment transactions are recorded on the trade date. Realized gains and losses from investment transactions are calculated using the identified cost method. Interest income is recorded on an accrual basis. Discounts are accreted and premiums are amortized as adjustments to interest income and the identified cost of investments. DIVIDENDS AND DISTRIBUTIONS--The Fund intends to pay monthly dividends to common shareholders at a level rate that over time will result in the distribution of all of the Fund's net investment income remaining after the payment of dividends on any outstanding auction preferred shares. The dividend rate on the common stock is adjusted as necessary to reflect the earnings rate of the Fund. Dividends and distributions to common shareholders are recorded on the ex-dividend date. Dividends to auction preferred shareholders are accrued daily. The amount of dividends from net investment income and distributions from net realized capital gains is determined in accordance with federal income tax regulations, which may differ from accounting principles generally accepted in the United States. These "book/tax" differences are either considered temporary or permanent in nature. To the extent these differences are permanent in nature, such amounts are reclassified within the capital accounts based on their federal tax-basis treatment; temporary differences do not require reclassification. -------------------------------------------------------------------------------- 21 Insured Municipal Income Fund Inc. Notes to Financial Statements (unaudited) CONCENTRATION OF RISK The Fund follows an investment policy of investing primarily in municipal obligations of various states. Economic changes affecting those states and certain of their public bodies and municipalities may affect the ability of the issuers within those states to pay interest on, or repay principal of, municipal obligations held by the Fund. INVESTMENT ADVISOR AND ADMINISTRATOR The Board has approved an investment advisory and administration contract ("Advisory Contract") with UBS Global Asset Management (US) Inc. ("UBS Global AM") under which UBS Global AM serves as investment advisor and administrator of the Fund. UBS Global AM is an indirect wholly owned asset management subsidiary of UBS AG, an international diversified organization with headquarters in Zurich, Switzerland and operations in many areas of the financial services industry. In accordance with the Advisory Contract, the Fund pays UBS Global AM an investment advisory and administration fee, which is accrued weekly and paid monthly, at the annual rate of 0.90% of the Fund's average weekly net assets. UBS Global AM has agreed to waive 0.20% of the advisory and administration fee, so that the Fund's effective fee is 0.70% of average weekly net assets. This waiver will continue indefinitely unless the Board agrees to any change. At September 30, 2003, the Fund owed UBS Global AM $267,747 representing $344,246 for investment advisory and administration fees less fee waivers of $76,499. For the six months ended September 30, 2003, UBS Global AM waived $362,019 in investment advisory and administration fees from the Fund. COMMON STOCK There are 199,997,000 shares of $0.001 par value common stock authorized and 20,628,363 common shares outstanding at September 30, 2003. AUCTION PREFERRED SHARES The Fund has issued 800 shares of Auction Preferred Shares Series A, 800 shares of Auction Preferred Shares Series B, 800 shares of Auction Preferred Shares Series C and 600 shares of Auction Preferred Shares Series D, which are referred to herein collectively as the "APS." All shares of each series of APS have a liquidation preference of $50,000 per share plus an amount equal to accumulated but unpaid dividends upon liquidation. Dividends, which are cumulative, are generally reset every 7 days for APS Series A, 28 days for APS Series B, 90 days for APS Series C and 7 days for APS Series D. As of the end of November 2003, dividend periods for Series B and C are expected to be reset every 7 days as well. Dividend rates ranged from 0.65% to 1.25% for the six months ended September 30, 2003. The Fund is subject to certain restrictions relating to the APS. Failure to comply with these restrictions could preclude the Fund from declaring any distributions to common shareholders or repurchasing common shares and/or could trigger the mandatory redemption of APS at liquidation value. -------------------------------------------------------------------------------- 22 Insured Municipal Income Fund Inc. Notes to Financial Statements (unaudited) The APS are entitled to one vote per share and, unless otherwise required by law, will vote with holders of common stock as a single class, except that the auction preferred shares will vote separately as a class on certain matters, as required by law. The holders of the auction preferred shares have the right to elect two directors of the Fund. The redemption of the Fund's auction preferred shares is outside of the control of the Fund because it is redeemable upon the occurrence of an event that is not solely within the control of the Fund. It is anticipated that the Fund will issue additional shares of Auction Preferred Shares in December 2003. All shares are expected to have terms similar to those of the existing APS. FEDERAL TAX STATUS For federal income tax purposes, at September 30, 2003, the components of net unrealized appreciation of investments were as follows: Gross appreciation (from investments having an excess value over cost) ..................................... $19,431,089 Gross depreciation (from investments having an excess of cost over value) .................................. (1,842,782) ----------- Net unrealized appreciation of investments ....................... $17,588,307 =========== For the six months ended September 30, 2003, total aggregate purchases and sales of portfolio securities, excluding short-term securities, were $113,462,643 and $159,175,657, respectively. The Fund intends to distribute substantially all of its tax-exempt income and any taxable income and to comply with the other requirements of the Internal Revenue Code applicable to regulated investment companies. Accordingly, no provision for federal income taxes is required. In addition, by distributing during each calendar year substantially all of its net investment income, realized capital gains and certain other amounts, if any, the Fund intends not to be subject to a federal excise tax. The tax character of distributions paid during the fiscal years ended March 31, 2003 and March 31, 2002 were as follows: Distributions paid from: 2003 2002 ----------- ----------- Tax-exempt income .................................. $19,306,799 $18,703,218 ----------- ----------- The tax character of distributions paid and the components of accumulated earnings (deficit) on a tax basis for the current fiscal year will be calculated for the portfolio after the portfolio's fiscal year end at March 31, 2004. -------------------------------------------------------------------------------- 23 Insured Municipal Income Fund Inc. Financial Highlights Selected data for a share of common stock outstanding throughout each period is presented below: FOR THE SIX MONTHS ENDED FOR THE YEARS ENDED MARCH 31, SEPTEMBER 30, 2003 --------------------------------------------------------------------- (UNAUDITED) 2003 2002 2001 2000 1999 ----------------------------------------------------------------------------------------------------------------------------- NET ASSET VALUE, BEGINNING OF PERIOD $15.76 $15.15 $15.30 $14.54 $15.58 $15.40 ............................................................................................................................... Net investment income 0.43 0.97 1.01 1.04 1.04 1.02 ............................................................................................................................... Net realized and unrealized gains (loss) from investment transactions (0.07) 0.58 (0.26) 0.79 (1.05) 0.18 ............................................................................................................................... Common share equivalent of dividends paid to auction preferred shareholders from net investment income (0.04) (0.10) (0.17) (0.31) (0.26) (0.25) ............................................................................................................................... Net increase (decrease) from operations applicable to common shareholders 0.32 1.45 0.58 1.52 (0.27) 0.95 ............................................................................................................................... Dividends paid to common shareholders from net investment income (0.42) (0.84) (0.73) (0.76) (0.77) (0.77) ............................................................................................................................... NET ASSET VALUE, END OF PERIOD $15.66 $15.76 $15.15 $15.30 $14.54 $15.58 ............................................................................................................................... MARKET VALUE, END OF PERIOD $14.03 $13.98 $13.42 $13.11 $12.00 $14.25 ............................................................................................................................... TOTAL INVESTMENT RETURN(1) 3.37% 10.61% 8.04% 16.02% (10.49)% 10.96% ............................................................................................................................... RATIO TO AVERAGE NET ASSETS ATTRIBUTABLE TO COMMON SHARES: ............................................................................................................................... Total expenses, net of waivers from advisor 1.33%* 1.41% 1.42% 1.44% 1.44% 1.46% ............................................................................................................................... Total expenses, before waivers from advisor 1.55%* 1.60% 1.61% 1.63% 1.63% 1.65% ............................................................................................................................... Net investment income before auction preferred shares dividends 5.47%* 6.23% 6.57% 7.00% 7.05% 6.58% ............................................................................................................................... Auction preferred shares dividends 0.45%* 0.61% 1.11% 2.10% 1.75% 1.60% ............................................................................................................................... Net investment income available to common shareholders, net of waivers from advisor 5.02%* 5.62% 5.46% 4.90% 5.30% 4.98% ............................................................................................................................... Net investment income available to common shareholders, before waivers from advisor 4.80%* 5.43% 5.27% 4.71% 5.11% 4.79% ............................................................................................................................... SUPPLEMENTAL DATA: ............................................................................................................................... Net assets applicable to common shareholders, end of period (000's) $323,084 $325,060 $312,552 $315,568 $299,876 $321,361 ............................................................................................................................... Portfolio turnover 26% 24% 14% 2% 8% 5% ............................................................................................................................... Asset coverage per share of auction preferred shares, end of period $157,695 $158,353 $154,184 $155,189 $149,959 $157,120 ------------------------------------------------------------------------------------------------------------------------------ * Annualized. (1) Total investment return is calculated assuming a $10,000 purchase of common stock at the current market price on the first day of each period reported and a sale at the current market price on the last day of each period reported, and assuming reinvestment of dividends and other distributions to common shareholders at prices obtained under the Fund's Dividend Reinvestment Plan. Total investment return does not reflect brokerage commissions and has not been annualized for the period less than one year. Returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions. -------------------------------------------------------------------------------- 24 Insured Municipal Income Fund Inc. GENERAL INFORMATION (UNAUDITED) THE FUND Insured Municipal Income Fund Inc. (the "Fund") is a diversified, closed-end management investment company whose shares trade on the New YorkStock Exchange ("NYSE").The Fund's investment objective is to achieve a high level of current income that is exempt from federal income tax, consistent with the preservation of capital. The Fund's investment advisor and administrator is UBS Global Asset Management (US) Inc. ("UBS Global AM"), an indirect wholly owned asset management subsidiary of UBS AG, which had over $65.0 billion in assets under management as of October 31, 2003. INVESTMENT POLICY CHANGE In July 2003, the Fund's Board approved a change in investment policy. The Fund may now invest in securities whose maturities are less than 10 years at the time of purchase. Prior to this change, the Fund had a policy of investing substantially all of its assets in municipal obligations having maturities in excess of 10 years at the time of purchase. PROXY VOTING POLICIES AND PROCEDURES You may obtain a description of the Fund's proxy voting policies and procedures, without charge, upon request by contacting the Fund directly at 1-800-647-1568 or online on the Fund's Web site www.ubs.com/ubsglobalam-proxy. SHAREHOLDER INFORMATION The Fund's NYSE trading symbol is "PIF." Comparative net asset value and market price information about the Fund is published weekly in THE WALLSTREET JOURNAL, THE NEW YORK TIMES and BARRON'S, as well as in numerous other publications. An annual meeting of shareholders of the Fund was held on August 12, 2003 (reconvened from July 17, 2003). At the meeting Margo N. Alexander, Richard Q. Armstrong, David J. Beaubien, Richard R. Burt, Meyer Feldberg, Frederic V. Malek, Carl W. Schafer, Brian M. Storms and William D. White were elected to serve as directors until the next annual meeting of shareholders, or until their successors are elected and qualified or until they resign or are otherwise removed. The shares were voted as indicated below: -------------------------------------------------------------------------------- 25 Insured Municipal Income Fund Inc. COMMON STOCK AND APS SHARES VOTING AS A SINGLE CLASS SHARES TO VOTE FOR OR WITHHOLD AUTHORITY SHARES WITHHOLD IN THE ELECTION OF: VOTED FOR AUTHORITY -------------------------------------------------------------------------------- Richard Q. Armstrong 19,421,846.2340 385,527.4288 David J. Beaubien 19,425,933.2340 381,440.4288 Richard R. Burt 19,426,140.2340 381,233.4288 Frederic V. Malek 19,415,928.2340 391,445.4288 Carl W. Schafer 19,430,655.2340 376,718.4288 Brian M. Storms 19,442,809.2340 364,564.4288 William D. White 19,419,647.2340 387,726.4288 -------------------------------------------------------------------------------- AUCTION PREFERRED SHARES SHARES TO VOTE FOR OR WITHHOLD AUTHORITY SHARES WITHHOLD IN THE ELECTION OF: VOTED FOR AUTHORITY -------------------------------------------------------------------------------- Margo N. Alexander 2,612 0 Meyer Feldberg 2,612 0 -------------------------------------------------------------------------------- Broker non-votes were as follows: common stock--823,601.3372 shares; and Auction Preferred Shares--388 shares. Subsequent to the shareholder meeting, Mr. Malek resigned from the Fund's board. DIVIDEND REINVESTMENT PLAN The Fund's Board has established a Dividend Reinvestment Plan (the "Plan") under which all common shareholders whose shares are registered in their own names, or in the name of UBS Financial Services Inc. or its nominee, will have all dividends and other distributions on their shares of common stock automatically reinvested in additional shares of common stock, unless such common shareholders elect to receive cash.Common shareholders who elect to hold their shares in the name of another broker or nominee should contact such broker or nominee to determine whether, or how, they may participate in the Plan.The ability of such shareholders to participate in the Plan may change if their shares are transferred into the name of another broker or nominee. A common shareholder may elect not to participate in the Plan or may terminate participation in the Plan at any time without penalty, and common shareholders who have previously terminated participation in the Plan may rejoin it at any time. Changes in elections must be made in writing to the Fund's transfer agent and should include the shareholder's name and address as they appear on the share certificate or in the transfer agent's records. An election to terminate participation in the Plan, until such election is changed, will be deemed an election by a common shareholder to take all subsequent distributions in cash. An election will be effective only for distributions declared and having a record date at least ten days after the date on which the election is received. -------------------------------------------------------------------------------- 26 Insured Municipal Income Fund Inc. GENERAL INFORMATION (UNAUDITED) (CONCLUDED) DIVIDEND REINVESTMENT PLAN (CONCLUDED) Additional shares of common stock acquired under the Plan will be purchased in the open market, on the NYSE or otherwise, at prices that may be higher or lower than the net asset value per share of the common stock at the time of the purchase. The number of shares of common stock purchased with each dividend will be equal to the result obtained by dividing the amount of the dividend payable to a particular shareholder by the average price per share (including applicable brokerage commissions) that the transfer agent was able to obtain in the open market. The Fund will not issue any new shares of common stock in connection with the Plan. There currently is no charge to participants for reinvesting dividends or other distributions. The transfer agent's fees for handling the reinvestment of distributions will be paid by the Fund. However, each participant pays a pro rata share of brokerage commissions incurred with respect to the transfer agent's open market purchases of common stock in connection with the reinvestment of distributions. The automatic reinvestment of dividends and other distributions in shares of common stock does not relieve participants of any income tax that may be payable on such distributions. Experience under the Plan may indicate that changes are desirable. Accordingly, the Fund reserves the right to amend or terminate the Plan with respect to any dividend or other distribution if notice of the change is sent to Plan participants at least 30 days before the record date for such distribution. The Plan also may be amended or terminated by the transfer agent by at least 30 days' written notice to all Plan participants. Additional information regarding the Plan may be obtained from, and all correspondence concerning the Plan should be directed to, the transfer agent at PFPC Inc., P.O. Box 43027, Providence, Rhode Island 02940-3027. For further information regarding the Plan, you may also contact the transfer agent directly at 1-800-331-1710. -------------------------------------------------------------------------------- 27 (This page has been left blank intentionally.) Directors Brian M. Storms Richard R. Burt CHAIRMAN Meyer Feldberg Margo N. Alexander Carl W. Schafer Richard Q. Armstrong William D. White David J. Beaubien PRINCIPAL OFFICERS Joseph A. Varnas Elbridge T. Gerry III PRESIDENT VICE PRESIDENT Amy R. Doberman W. Douglas Beck VICE PRESIDENT AND SECRETARY VICE PRESIDENT Paul H. Schubert VICE PRESIDENT AND TREASURER INVESTMENT ADVISOR AND ADMINISTRATOR UBS Global Asset Management (US) Inc. 51 West 52nd Street New York, New York 10019-6114 THE FINANCIAL INFORMATION INCLUDED HEREIN IS TAKEN FROM THE RECORDS OF THE FUND WITHOUT EXAMINATION BY INDEPENDENT AUDITORS WHO DO NOT EXPRESS AN OPINION THEREON. NOTICE IS HEREBY GIVEN IN ACCORDANCE WITH SECTION 23(C) OF THE INVESTMENT COMPANY ACT OF 1940 THAT FROM TIME TO TIME THE FUND MAY PURCHASE SHARES OF ITS COMMON STOCK IN THE OPEN MARKET AT MARKET PRICES. THIS REPORT IS SENT TO THE SHAREHOLDERS OF THE FUND FOR THEIR INFORMATION. IT IS NOT A PROSPECTUS, CIRCULAR OR REPRESENTATION INTENDED FOR USE IN THE PURCHASE OR SALE OF SHARES OF THE FUND OR OF ANY SECURITIES MENTIONED IN THIS REPORT. (C) 2003 UBS GLOBAL ASSET MANAGEMENT (US) INC. ALL RIGHTS RESERVED. [UBS LOGO] UBS GLOBAL ASSET MANAGEMENT (US) INC. 51 West 52nd Street New York, New York 10019 ITEM 2. CODE OF ETHICS. Form N-CSR disclosure requirement not applicable to this filing of a semi-annual report. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Form N-CSR disclosure requirement not applicable to this filing of a semi-annual report. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Form N-CSR disclosure requirement not yet effective with respect to the registrant. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Form N-CSR disclosure requirement not yet effective with respect to the registrant. ITEM 6. [RESERVED BY SEC FOR FUTURE USE. ] ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED - END MANAGEMENT INVESTMENT COMPANIES. Form N-CSR disclosure requirement not applicable to this filing of a semi-annual report. ITEM 8. [RESERVED BY SEC FOR FUTURE USE. ] ITEM 9. CONTROLS AND PROCEDURES. (a) The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended) are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this document. (b) The registrant's principal executive officer and principal financial officer are aware of no changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 10. EXHIBITS. (a) (1) Code of Ethics - Form N-CSR disclosure requirement not applicable to this filing of a semi-annual report. (a) (2) Certifications of principal executive officer and principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 is attached hereto as Exhibit EX-99.CERT. (b) Certifications of principal executive officer and principal financial officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 is attached hereto as Exhibit EX-99.906CERT. 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. INSURED MUNICIPAL INCOME FUND INC. By: /s/ Joseph A. Varnas --------------------- Joseph A. Varnas President Date: DECEMBER 8, 2003 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: /s/ Joseph A. Varnas --------------------- Joseph A. Varnas President Date: DECEMBER 8, 2003 By: /s/ Paul H. Schubert --------------------- Paul H. Schubert Treasurer Date: DECEMBER 8, 2003