UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSRS CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-21348 Name of Fund: Muni Intermediate Duration Fund, Inc. Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer, Muni Intermediate Duration Fund, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (609) 282-2800 Date of fiscal year end: 05/31/06 Date of reporting period: 06/01/05 - 11/30/05 Item 1 - Report to Stockholders Muni Intermediate Duration Fund, Inc. Muni New York Intermediate Duration Fund, Inc. Semi-Annual Reports November 30, 2005 (BULL LOGO) Merrill Lynch Investment Managers www.mlim.ml.com Mercury Advisors A Division of Merrill Lynch Investment Managers www.mercury.ml.com These reports, including the financial information herein, are transmitted to shareholders of Muni Intermediate Duration Fund, Inc. and Muni New York Intermediate Duration Fund, Inc. for their information. This is not a prospectus. The Funds have leveraged their Common Stock and intend to remain leveraged by issuing Preferred Stock to provide the Common Stock shareholders with potentially higher rates of return. Leverage creates risks for Common Stock shareholders, including the likelihood of greater volatility of net asset value and market price of shares of the Common Stock, and the risk that fluctuations in the short-term dividend rates of the Preferred Stock may affect the yield to Common Stock shareholders. Past performance results shown in these reports should not be considered a representation of future performance. Statements and other information herein are as dated and are subject to change. A description of the policies and procedures that the Funds use to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling toll-free 1-800-MER-FUND (1-800-637-3863); (2) at www.mutualfunds.ml.com; and (3) on the Securities and Exchange Commission's Web site at http://www.sec.gov. Information about how the Funds vote proxies relating to securities held in the Funds' portfolios during the most recent 12-month period ended June 30 is available (1) at www.mutualfunds.ml.com; and (2) on the Securities and Exchange Commission's Web site at http://www.sec.gov. Muni Intermediate Duration Fund, Inc. Muni New York Intermediate Duration Fund, Inc. Box 9011 Princeton, NJ 08543-9011 (GO PAPERLESS LOGO) It's Fast, Convenient, & Timely! To sign up today, go to www.icsdelivery.com/live. Muni Intermediate Duration Fund, Inc. Muni New York Intermediate Duration Fund, Inc. The Benefits and Risks of Leveraging The Funds utilize leveraging to seek to enhance the yield and net asset value of their Common Stock. However, these objectives cannot be achieved in all interest rate environments. To leverage, each Fund issues Preferred Stock, which pays dividends at prevailing short-term interest rates, and invests the proceeds in long-term municipal bonds. The interest earned on these investments, net of dividends to Preferred Stock, is paid to Common Stock shareholders in the form of dividends, and the value of these portfolio holdings is reflected in the per share net asset value of each Fund's Common Stock. However, in order to benefit Common Stock shareholders, the yield curve must be positively sloped; that is, short-term interest rates must be lower than long-term interest rates. At the same time, a period of generally declining interest rates will benefit Common Stock shareholders. If either of these conditions change, then the risks of leveraging will begin to outweigh the benefits. To illustrate these concepts, assume a fund's Common Stock capitalization of $100 million and the issuance of Preferred Stock for an additional $50 million, creating a total value of $150 million available for investment in long-term municipal bonds. If prevailing short-term interest rates are approximately 3% and long-term interest rates are approximately 6%, the yield curve has a strongly positive slope. The fund pays dividends on the $50 million of Preferred Stock based on the lower short-term interest rates. At the same time, the fund's total portfolio of $150 million earns the income based on long-term interest rates. In this case, the dividends paid to Preferred Stock shareholders are significantly lower than the income earned on the fund's long-term investments, and therefore the Common Stock shareholders are the beneficiaries of the incremental yield. However, if short-term interest rates rise, narrowing the differential between short-term and long-term interest rates, the incremental yield pickup on the Common Stock will be reduced or eliminated completely. At the same time, the market value of the fund's Common Stock (that is, its price as listed on the New York Stock Exchange) may, as a result, decline. Furthermore, if long-term interest rates rise, the Common Stock's net asset value will reflect the full decline in the price of the portfolio's investments, since the value of the fund's Preferred Stock does not fluctuate. In addition to the decline in net asset value, the market value of the fund's Common Stock may also decline. As a part of its investment strategy, the Funds may invest in certain securities whose potential income return is inversely related to changes in a floating interest rate ("inverse floaters"). In general, income on inverse floaters will decrease when short-term interest rates increase and increase when short-term interest rates decrease. Investments in inverse floaters may be characterized as derivative securities and may subject the Funds to the risks of reduced or eliminated interest payments and losses of invested principal. In addition, inverse floaters have the effect of providing investment leverage and, as a result, the market value of such securities will generally be more volatile than that of fixed-rate, tax-exempt securities. To the extent the Funds invest in inverse floaters, the market value of each Fund's portfolio and the net asset value of each Fund's shares may also be more volatile than if the Funds did not invest in such securities. As of November 30, 2005, the percentage of Muni Intermediate Duration Fund, Inc.'s total net assets invested in inverse floaters was 3.70%, before the deduction of Preferred Stock. As of November 30, 2005, none of Muni New York Intermediate Duration Fund, Inc.'s total net assets was invested in inverse floaters. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 A Letter From the President Dear Shareholder As the financial markets continued to muddle their way through 2005, the Federal Reserve Board (the Fed) advanced its monetary tightening campaign full steam ahead. The 13th consecutive interest rate hike since June 2004 came on December 13, bringing the target federal funds rate to 4.25%. Oil prices, after reaching record highs on more than one occasion over the past several months, moderated somewhat by period-end, as did inflation expectations. Against this backdrop, most major market indexes managed to post positive results for the current reporting period: Total Returns as of November 30, 2005 6-month 12-month U.S. equities (Standard & Poor's 500 Index) + 5.88% + 8.44% Small-cap U.S. equities (Russell 2000 Index) +10.47 + 8.14 International equities (MSCI Europe Australasia Far East Index) +11.23 +13.25 Fixed income (Lehman Brothers Aggregate Bond Index) - 0.48 + 2.40 Tax-exempt fixed income (Lehman Brothers Municipal Bond Index) + 0.36 + 3.88 High yield bonds (Credit Suisse First Boston High Yield Index) + 2.33 + 2.94 With the kick-off of the holiday shopping season, attention turned to the consumer, who has remained resilient even amid high energy prices and rising interest rates. Some observers surmise that a slowdown in residential real estate may ultimately contribute to a weakening in consumer spending. At this juncture, the outlook remains unclear. Equity markets moved sideways for much of 2005, notwithstanding a strong rally in the middle of the fourth quarter. Corporate earnings have continued to surprise on the upside and company profit margins remain high, as does productivity. On the other hand, high energy prices, more Fed interest rate hikes, a consumer slowdown and/or the potential for slower earnings growth pose the greatest risks to U.S. stocks. Internationally, many markets have benefited from strong economic statistics, trade surpluses and solid finances. Emerging markets have had a particularly strong year, partly reflecting high economic growth rates and positive financial reforms. The bond market continued to be characterized by a flattening yield curve. The difference between the two-year and 10-year Treasury yield was just seven basis points (.07%) at period-end, compared to 40 basis points six months ago and 134 basis points 12 months ago. Navigating the financial markets can be a challenge, particularly during uncertain times. With that in mind, we invite you to visit our online magazine at www.mlim.ml.com/shareholdermagazine. Shareholder is a publication designed to provide insights on investing and timely "food for thought" for investors. We are pleased to make the magazine available online, where we are able to expand our reach in terms of content and readership. As always, we thank you for trusting Merrill Lynch Investment Managers with your investment assets, and we look forward to serving you in the months and years ahead. Sincerely, (Robert C. Doll, Jr.) Robert C. Doll, Jr. President and Director SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 A Discussion With Your Funds' Portfolio Managers The Funds remained focused on generating an attractive level of tax-exempt income for shareholders, looking for income-enhancing opportunities as market rates rose late in the period. Describe the recent market environment relative to municipal bonds. Over the past six months, long-term bond yields generally rose. Bond prices, which move opposite of yields, fell as investors focused on inflationary pressures, especially higher energy costs in the wake of the Gulf Coast hurricanes. A strengthening U.S. economy, which grew at a faster- than-expected 4.3% rate in the third quarter of 2005, added further to the inflationary concerns. The Federal Reserve Board (the Fed) continued to raise short-term interest rates at each of its meetings during the period, lifting the federal funds target rate to 4% by period-end (and to 4.25% on December 13). With short-term interest rates increasing more than long-term interest rates, the yield curve continued to flatten. During the past six months, 10-year Treasury note yields rose 49 basis points (.49%) to 4.49%, while 30-year U.S. Treasury yields rose 37 basis points to 4.69%. Tax-exempt bond yields exhibited a similar pattern during the period. According to Municipal Market Data, the yield on AAA-rated issues maturing in 30 years increased 29 basis points to 4.55%, while the yield on AAA-rated issues maturing in 10 years rose 38 basis points to 3.87%. Historically low nominal tax-exempt bond yields continued to encourage municipalities to issue new debt and refund outstanding, higher-couponed issues. During the past six months, almost $207 billion in new municipal bonds was underwritten, a 16.8% increase compared to issuance during the same six months of 2004. Year-to-date through November 30, the volume of refunding issues increased by more than 44% on a year-over-year basis. Refunding issues were heavily weighted in the 10-year - 20-year maturity range, putting pressure on intermediate tax-exempt bond yields while supporting longer-term bond prices. Investor demand for municipal product remained positive during most of the period. The most current statistics from the Investment Company Institute indicate that, year-to-date through October 2005, net new cash flows into long- term municipal bond funds exceeded $6.9 billion - a significant improvement from the $12.7 billion net outflow seen during the same period in 2004. Solid investor demand enabled municipal bonds to perform generally in line with their taxable counterparts, reversing some of their recent underperformance. We believe that attractive yield ratios relative to taxable bonds should continue to attract both traditional and non-traditional investors to the municipal marketplace, especially if municipal bond issuance remains manageable. The communities shattered by Hurricanes Katrina and Rita will require extensive reconstruction. It is too early, however, to estimate the amount of tax-exempt debt that may be required to finance these efforts or assess the overall impact on the municipal market. However, much of the rebuilding is likely to be funded through federal loans and grants, and the reconstruction will likely be spread over a number of years. Consequently, any new municipal bond issuance prompted by the hurricanes is not likely to disrupt the tax- exempt market in the near future. Muni Intermediate Duration Fund, Inc. How did the Fund perform during the period? For the six-month period ended November 30, 2005, the Common Stock of Muni Intermediate Duration Fund, Inc. had net annualized yields of 5.66% and 6.17%, based on a period-end per share net asset value of $15.22 and a per share market price of $13.96, respectively, and $.432 per share income dividends. Over the same period, the total investment return on the Fund's Common Stock was +1.13%, based on a change in per share net asset value from $15.51 to $15.22, and assuming reinvestment of all distributions. The Fund's total return, based on net asset value, exceeded the +.58% average return of the Lipper General Municipal Debt Funds (Leveraged) category for the six-month period. (Funds in this Lipper category invest primarily in municipal debt issues rated in the top four credit-rating categories. These funds can be leveraged via use of debt, preferred equity and/or reverse repurchase agreements.) SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 The Fund's outperformance can be attributed to a modestly overweighted exposure to spread product - lower-quality, higher-yielding municipal bonds, which benefited as credit spreads narrowed during the period. The high yield municipal market continued to perform well on the back of strong demand, as investors, looking for better yields in a low interest rate environment, poured cash into high yield mutual funds. The Fund benefited particularly from issues in the special tax (land secured), senior living and toll road sectors, all of which saw gains in an otherwise down market. The Fund also benefited from price appreciation of its holdings issued by Mississippi Systems Energy, a subsidiary of Entergy Corporation, which was downgraded after Hurricane Katrina struck the Gulf Coast region. Ironically, the credit downgrade caused our bonds to appreciate because it made it less probable that the securities' call feature would be exercised. Of final note, the Fund's underweight stance in airline bonds was a positive. We had no exposure to either Delta Air Lines, Inc. or Northwest Airlines, both of which declared bankruptcy during the period, in part because of the impact of higher fuel costs. For a description of the Fund's total investment return based on a change in the per share market value of the Fund's Common Stock (as measured by the trading price of the Fund's shares on the New York Stock Exchange), and assuming reinvestment of dividends, please refer to the Financial Highlights section of this report. As a closed-end fund, the Fund's shares may trade in the secondary market at a premium or discount to the Fund's net asset value. As a result, total investment returns based on changes in the market value of the Fund's Common Stock may vary significantly from total investment returns based on changes in the Fund's net asset value. What changes were made to the portfolio during the period? Portfolio activity concentrated on uncovering attractive relative value in the municipal marketplace. Given the prospect of continued yield curve flattening, we reduced our exposure to bonds with maturities of 10 years - 18 years while adding to our holdings in bonds longer than 25 years. We also maintained our strategy of purchasing bonds of issuers we believed were more likely to defease their existing debt to help close their budget gaps. When bonds are defeased, it typically means that the securities are retired at their first call date, enabling the bonds to appreciate significantly. The states of California and Massachusetts are two issuers who have been aggressive in implementing this strategy. Purchases during the period also included higher- coupon bonds with shorter call dates, which we believed offered attractive relative yields and the potential for future outperformance. For the six months ended November 30, 2005, the average yield for the Fund's Auction Market Preferred Stock (AMPS) was 1.78% for Series M7; 1.80% for Series T7; 1.83% for Series W7; 1.92% for Series TH7; 1.74% for Series F7; and 2.41% for Series TH28. The Fed's interest rate hikes clearly are having an impact on the Fund's borrowing costs. The Fed raised the short-term interest rate target 100 basis points during the six-month period (and once more on December 13). Still, the tax-exempt yield curve remained relatively steep and continued to generate an income benefit to the holders of Common Stock from the leveraging of Preferred Stock. However, should the spread between short- term and long-term interest rates narrow, the benefits of leveraging will decline and, as a result, reduce the yield on the Fund's Common Stock. At the end of the period, the Fund's leverage amount, due to AMPS, was 35.6% of total net assets, before the deduction of Preferred Stock. (For a more complete explanation of the benefits and risks of leveraging, see page 2 of this report to shareholders.) How would you characterize the Fund's position at the close of the period? Relative to the broader municipal market, we maintained a neutral level of interest rate risk but are positioned for the continued flattening of the yield curve. Having reduced some of our more volatile corporate-backed bonds, the Fund has a more neutral exposure to high yield spread product. With higher interest rates and our outlook for slower economic activity, however, we will be on the lookout for opportunities to slightly increase the Fund's duration. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 A Discussion With Your Funds' Portfolio Managers (concluded) Muni New York Intermediate Duration Fund, Inc. Describe conditions in the State of New York. The State of New York maintains credit ratings of A1, AA and AA- from Moody's, Standard & Poor's (S&P) and Fitch, respectively. Moody's assigns a positive outlook to the state's rating, while Fitch and S&P carry stable outlooks. The state economy continues to improve and revenue collections are increasing. State tax collections remain largely dependent on the performance of the financial sector, but tax receipts for fiscal year 2005 (ended March 31, 2005) were 15% above the prior fiscal year. Due to surging tax collections, particularly income taxes, the fiscal year 2005 operating surplus totaled $1.2 billion. For the first time in more than 20 years, New York lawmakers approved a budget on time. The fiscal year 2006 budget calls for $105 billion in spending and forecasts a 5% increase in tax receipts for the fiscal year (which began April 1, 2005). Aided by this revenue growth, the enacted budget includes most of the governor's original proposals for closing an estimated $4 billion deficit. However, this does not factor in a lawsuit won by the Campaign for Fiscal Equity that could add up to $2 billion in annual state education spending. Crafting balanced budgets beyond fiscal year 2006 will present a challenge given political resistance to additional tax hikes and cuts in popular programs, as well as pressure from local governments for pension and Medicaid relief, and new education spending. Current employment numbers show a 1% increase from year-ago levels. New York ranks fifth-highest among all states in per capita income. Modest income growth through the remainder of 2005 would boost personal income tax receipts, which account for roughly 38% of general fund receipts. How did the Fund perform during the period? For the six-month period ended November 30, 2005, the Common Stock of Muni New York Intermediate Duration Fund, Inc. had net annualized yields of 4.90% and 5.56%, based on a period-end per share net asset value of $14.66 and a per share market price of $12.92, respectively, and $.360 per share income dividends. Over the same period, the total investment return on the Fund's Common Stock was +.02%, based on a change in per share net asset value from $15.05 to $14.66, and assuming reinvestment of all distributions. The Fund's total return, based on net asset value, lagged the +.86% average return of the Lipper New York Municipal Debt Funds category for the six-month period. (Funds in this Lipper category limit their investment to securities exempt from taxation in New York or a city in New York.) Notably, the Lipper category consists primarily of funds with the ability to invest in municipal issues with longer durations, whereas our portfolio is limited to bonds in the intermediate duration range. This put the Fund at a disadvantage relative to the Lipper average as the yield curve continued to flatten, causing shorter- duration and intermediate-duration bonds to underperform longer-dated municipal investments. In addition, airline-related debt, which had benefited Fund performance in the prior period, detracted from returns over the past six months. We continue to hold a core position in airline-related debt issues, as they are a significant contributor to the yield of the portfolio, although we are monitoring our exposure carefully given the inherent volatility in this sector. Also hindering performance was our exposure to Puerto Rico paper, which we had increased during the period. Although these bonds underperformed the broader market over the past six months due to budgetary concerns in Puerto Rico, they continue to offer both good liquidity and positive incremental yield characteristics. For these reasons, coupled with our expectation for a positive resolution to the budgetary concerns, we would view further weakness in Puerto Rico as a buying opportunity. We continued to capitalize on the flattening yield curve by moving into longer- dated securities as opportunities presented themselves, while remaining within our intermediate investment parameters. This strategy helped the Fund's total return as the price of longer-dated bonds increased. For a description of the Fund's total investment return based on a change in the per share market value of the Fund's Common Stock (as measured by the trading price of the Fund's shares on the New York Stock Exchange), and assuming reinvestment of dividends, please refer to the Financial Highlights section of this report. As a closed-end fund, the Fund's shares may trade in the secondary market at a premium or discount to the Fund's net asset value. As a result, total investment returns based on changes in the market value of the Fund's Common Stock may vary significantly from total investment returns based on changes in the Fund's net asset value. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 What changes were made to the portfolio during the period? We entered the period defensively positioned and moved toward neutral as the period progressed. Most activity in the portfolio occurred in the latter part of the six-month period as rates increased all along the yield curve. This provided an opportunity to restructure a portion of the portfolio as more attractively structured, higher-yielding alternatives became available. In general, our strategy was to roll out of shorter, more seasoned holdings (generally in the five-year - 10-year range) into longer-dated bonds (generally in the 25-year range) that we believe could contribute more attractive yield and total return potential. As detailed in the Fund's prospectus, 80% of the bonds we hold in the portfolio must have a duration between three years and 10 years. Because the yield curve measures maturity, not duration, we are able to add bonds with longer maturities without necessarily extending duration. This is accomplished through the purchase of cushion bonds, which have longer maturities but are priced and traded at their relatively short call date (generally 10 years or less). We believe this strategy will benefit Fund performance if the yield curve continues to flatten, as expected, and should allow the Fund to more closely match the maturity profile of its Lipper peers. Overall, the portfolio's average maturity was extended by a little more than a year, for an average maturity just shy of 14 years at period-end. For the six months ended November 30, 2005, the average yield for the Fund's Auction Market Preferred Stock (AMPS) was 2.23%. The Fed's interest rate hikes clearly are having an impact on the Fund's borrowing costs. The Fed raised the short-term interest rate target 100 basis points during the six-month period (and once more on December 13). Still, the tax-exempt yield curve remained relatively steep and continued to generate an income benefit to the holders of Common Stock from the leveraging of Preferred Stock. However, should the spread between short-term and long-term interest rates narrow, the benefits of leveraging will decline and, as a result, reduce the yield on the Fund's Common Stock. At the end of the period, the Fund's leverage amount, due to AMPS, was 33.45% of total net assets, before the deduction of Preferred Stock. (For a more complete explanation of the benefits and risks of leveraging, see page 2 of this report to shareholders.) How would you characterize the Fund's position at the close of the period? We ended the period with a fairly neutral market outlook. At its most recent meeting, the Fed modified its language slightly, removing the long-standing reference to monetary policy that it deems "accommodative." This represented the first hint that the measured monetary tightening campaign may be nearing an end. Until it does, we anticipate continued volatility as investors adjust their assumptions about the markets. Against this backdrop, we will continue to take advantage of the volatility and higher rates in an effort to generate a competitive yield for our shareholders. One benefit of the recent upturn in long-term interest rates is that it has allowed us to restructure the portfolio in terms of coupon, call date and maturity without having a negative impact on yield, and in certain cases, with a favorable impact on yield. Over time, we believe this restructuring should translate into enhanced total return performance. Robert A. DiMella, CFA Vice President and Portfolio Manager Muni Intermediate Duration Fund, Inc. Timothy T. Browse, CFA Vice President and Portfolio Manager Muni New York Intermediate Duration Fund, Inc. December 19, 2005 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Portfolio Information Quality Profiles as of November 30, 2005 Percent of Muni Intermediate Duration Fund, Inc. Total By S&P/Moody's Rating Investments AAA/Aaa 33.2% AA/Aa 4.5 A/A 19.4 BBB/Baa 19.4 BB/Ba 6.7 B/B 0.6 CCC/Caa 1.4 NR (Not Rated) 14.3 Other* 0.5 * Includes portfolio holdings in variable rate demand notes. Muni New York Intermediate Percent of Duration Fund, Inc. Total By S&P/Moody's Rating Investments AAA/Aaa 41.1% AA/Aa 12.8 A/A 13.0 BBB/Baa 12.1 BB/Ba 7.4 CCC/Caa 2.2 NR (Not Rated) 9.6 Other* 1.8 * Includes portfolio holdings in short-term investments. Swap Agreements The Funds may invest in swap agreements, which are over-the-counter contracts in which one party agrees to make periodic payments based on the change in market value of a specified bond, basket of bonds, or index in return for periodic payments based on a fixed or variable interest rate or the change in market value of a different bond, basket of bonds or index. Swap agreements may be used to obtain exposure to a bond or market without owning or taking physical custody of securities. Swap agreements involve the risk that the party with whom each Fund has entered into the swap will default on its obligation to pay the Funds and the risk that the Funds will not be able to meet their obligations to pay the other party to the agreement. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments Muni Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value Alabama--3.8% Jefferson County, Alabama, Limited Obligation School Warrants, Series A: $ 5,500 5.50% due 1/01/2021 $ 5,908 6,500 5.25% due 1/01/2023 6,823 2,400 Sylacauga, Alabama, Health Care Authority Revenue Bonds (Coosa Valley Medical Center), Series A, 6% due 8/01/2025 2,433 6,600 Tuscaloosa, Alabama, Special Care Facilities Financing Authority, Residential Care Facility Revenue Bonds (Capstone Village, Inc. Project), Series A, 5.625% due 8/01/2025 6,572 Arizona--5.0% 3,020 Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project 1), Series A, 6.625% due 7/01/2020 3,029 3,000 Navajo County, Arizona, IDA, IDR (Stone Container Corporation Project), AMT, 7.20% due 6/01/2027 3,124 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project): 1,000 Series C, 6.70% due 7/01/2021 1,057 1,750 Series K/L, 6.375% due 7/01/2031 1,815 Pinal County, Arizona, COP: 2,760 5.25% due 12/01/2018 2,922 2,910 5.25% due 12/01/2019 3,070 3,065 5.25% due 12/01/2020 3,227 3,230 5.25% due 12/01/2021 3,393 3,405 5.25% due 12/01/2022 3,564 3,630 Vistancia Community Facilities District, Arizona, GO, 5% due 7/15/2014 3,577 Arkansas--1.3% Conway, Arkansas, Public Facilities Board, Capital Improvement Revenue Refunding Bonds (Hendrix College Projects): 1,500 Series A, 5% due 10/01/2026 1,529 3,755 Series B, 5% due 10/01/2026 3,829 University of Arkansas, University Revenue Refunding Bonds (UAMS Campus), Series A (d): 1,000 5% due 11/01/2013 1,081 1,250 5% due 11/01/2015 1,346 California--26.9% 8,865 California Pollution Control Financing Authority, PCR, Refunding, DRIVERS, AMT, Series 878Z, 7.324% due 12/01/2009 (d)(h) 9,922 California State Department of Water Resources, Power Supply Revenue Bonds, Series A (i): 8,500 5.25% due 5/01/2012 9,305 11,500 5.375% due 5/01/2012 12,671 Face Amount Municipal Bonds Value California (concluded) $ 5,000 California State, GO, Refunding, 5.25% due 2/01/2027 (d) $ 5,268 10,000 California State Public Works Board, Lease Revenue Bonds (Department of Corrections), Series C, 5.50% due 6/01/2020 10,763 17,500 California State, Various Purpose, GO, 5.50% due 4/01/2028 18,792 2,500 California Statewide Communities Development Authority, Health Facility Revenue Bonds (Memorial Health Services), Series A, 6% due 10/01/2023 2,747 1,180 Chula Vista, California, IDR (San Diego Gas and Electric Company), AMT, Series B, 5% due 12/01/2027 1,188 2,400 Elk Grove, California, Poppy Ridge Community Facilities Number 3 Special Tax, Series 1, 6% due 9/01/2008 (i) 2,571 Los Angeles, California, Unified School District, GO: 10,485 (Election of 1997), Series F, 5% due 7/01/2025 (b) 10,939 26,575 Series A, 5% due 1/01/2028 (d) 27,588 Oakland, California, Sewer Revenue Bonds, Series A (c): 3,565 5% due 6/15/2028 3,703 2,000 5% due 6/15/2029 2,076 5,850 Ontario-Monclair, California, School District, GO (Election of 2002), Series A, 5% due 8/01/2027 (b) 6,054 10,135 Peralta, California, Community College District, GO (Election of 2000), Series D, 5% due 8/01/2030 (c) 10,536 1,515 Rowland, California, Unified School District, GO (Election of 2000), Series B, 5.25% due 8/01/2027 (c) 1,605 Sacramento, California, Special Tax (North Natomas Community Facilities), Series 4-C: 585 5.60% due 9/01/2020 618 1,720 5.75% due 9/01/2022 1,823 500 5.90% due 9/01/2023 534 3,000 6% due 9/01/2028 3,199 3,000 San Jose, California, Airport Revenue Bonds, Series A, 5.25% due 3/01/2017 (b) 3,201 3,100 San Jose, California, GO (Libraries, Parks and Public Safety Projects), 5% due 9/01/2030 (d) 3,202 4,875 Tamalpais, California, Union High School District, GO (Election of 2001), 5% due 8/01/2028 (c) 5,047 2,450 University of California, Limited Project Revenue Bonds, Series B, 5% due 5/15/2033 (c) 2,530 Colorado--2.6% 2,000 Denver, Colorado, City and County Airport Revenue Refunding Bonds, Series E, 5.25% due 11/15/2023 (d) 2,079 900 Elk Valley, Colorado, Public Improvement Revenue Bonds (Public Improvement Fee), Series A, 7.10% due 9/01/2014 964 2,250 Montrose, Colorado, Memorial Hospital, Revenue Bonds, 6.375% due 12/01/2023 2,425 Portfolio Abbreviations To simplify the listings of portfolio holdings in the Schedules of Investments, we have abbreviated the names of many of the securities according to the list at right. AMT Alternative Minimum Tax (subject to) BAN Bond Anticipation Notes COP Certificates of Participation DRIVERS Derivative Inverse Tax-Exempt Receipts EDA Economic Development Authority GO General Obligation Bonds HFA Housing Finance Agency IDA Industrial Development Authority IDB Industrial Development Board IDR Industrial Development Revenue Bonds PCR Pollution Control Revenue Bonds S/F Single-Family TAN Tax Anticipation Notes VRDN Variable Rate Demand Notes SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments (continued) Muni Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value Colorado (concluded) $ 7,500 Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds (Public Improvement Fees), 7.50% due 12/01/2015 $ 8,239 1,000 Southlands, Colorado, Medical District, GO (Metropolitan District Number 1), 6.75% due 12/01/2016 1,090 Connecticut--1.7% 1,160 Connecticut State Development Authority, Airport Facility Revenue Bonds (LearJet Inc. Project), AMT, 7.95% due 4/01/2026 1,385 8,000 Connecticut State Development Authority, PCR, Refunding (Connecticut Light and Power Company), Series A, 5.85% due 9/01/2028 8,517 Florida--4.7% 1,000 Broward County, Florida, Airport Exempt Facility Revenue Bonds (Learjet Inc. Project), AMT, 7.50% due 11/01/2020 1,130 2,970 Harbor Bay, Florida, Community Development District, Capital Improvement Special Assessment Bonds, 6.75% due 5/01/2034 3,219 2,985 Heritage Isle at Viera Community Development District, Florida, Special Assessment Bonds, Series B, 5% due 11/01/2009 2,992 4,705 Lee County, Florida, Revenue Bonds, 5% due 10/01/2022 (a) 4,952 3,500 Midtown Miami, Florida, Community Development District, Special Assessment Revenue Bonds, Series A, 6% due 5/01/2024 3,713 3,670 Orange County, Florida, Health Facilities Authority, Health Care Revenue Refunding Bonds (Orlando Lutheran Towers), 5% due 7/01/2013 3,628 965 Orlando, Florida, Urban Community Development District, Capital Improvement Special Assessment Bonds, 6% due 5/01/2020 1,034 1,085 Portofino Shores, Florida, Community Development District, Special Assessment Bonds, Series A, 6.40% due 5/01/2034 1,138 2,390 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital Inc.), 6.625% due 10/01/2023 2,615 875 Sterling Hill, Florida, Community Development District, Capital Improvement Revenue Refunding Bonds, Series B, 5.50% due 11/01/2010 878 2,060 Watergrass Community Development District, Florida, Special Assessment Revenue Bonds, Series B, 4.875% due 11/01/2010 2,059 Georgia--3.1% 1,500 Atlanta, Georgia, Tax Allocation Bonds (Atlantic Station Project), 7.90% due 12/01/2024 1,621 Brunswick and Glynn County, Georgia, Development Authority, First Mortgage Revenue Bonds (Coastal Community Retirement Corporation Project), Series A: 5,210 7.125% due 1/01/2025 5,454 2,800 7.25% due 1/01/2035 2,926 4,500 Fulton County, Georgia, Residential Care Facilities, Revenue Refunding Bonds (Canterbury Court Project), Series A, 5.80% due 2/15/2018 4,570 Savannah, Georgia, EDA, Revenue Bonds (Marshes of Skidaway), First Mortgage, Series A: 1,245 6.25% due 1/01/2012 1,242 2,245 6.85% due 1/01/2019 2,306 Face Amount Municipal Bonds Value Idaho--0.1% $ 540 Idaho Housing and Finance Association, S/F Mortgage Revenue Bonds, AMT, Series F-2, 5.85% due 7/01/2015 (e) $ 545 Illinois--3.4% 2,510 Chicago, Illinois, O'Hare International Airport Revenue Bonds, 3rd Lien, AMT, Series B-2, 6% due 1/01/2029 (f) 2,781 6,000 Hodgkins, Illinois, Environmental Improvement Revenue Bonds (Metro Biosolids Management LLC Project), AMT, 5.90% due 11/01/2017 6,319 6,930 Illinois, Development Finance Authority Revenue Bonds (Community Rehabilitation Providers Facilities), Series A, 6.625% due 7/01/2032 7,442 1,800 Illinois State Finance Authority Revenue Bonds (Landing At Plymouth Place Project), Series A, 6% due 5/15/2025 1,818 1,580 Village of Wheeling, Illinois, Revenue Bonds (North Milwaukee/Lake-Cook Tax Increment Financing (TIF) Redevelopment Project), 6% due 1/01/2025 1,553 Louisiana--0.9% 5,000 Port New Orleans, Louisiana, IDR, Refunding (Continental Grain Company Project), 6.50% due 1/01/2017 5,110 Maine--1.6% 1,965 Portland, Maine, Housing Development Corporation, Senior Living Revenue Bonds (Avesta Housing Development Corporation Project), Series A, 6% due 2/01/2034 2,030 7,000 Rumford, Maine, Solid Waste Disposal Revenue Refunding Bonds (Boise Cascade Corporation Project), AMT, 6.875% due 10/01/2026 7,463 Maryland--0.3% 500 Maryland State Industrial Development Financing Authority, Economic Development Revenue Bonds (Our Lady of Good Counsel School), Series A, 6% due 5/01/2035 510 1,150 Prince Georges County, Maryland, Special Obligation Bonds (National Harbor Project), 5.20% due 7/01/2034 1,141 Massachusetts--4.7% 4,560 Massachusetts Bay Transportation Authority, Sales Tax Revenue Refunding Bonds, Senior Series A, 5% due 7/01/2032 4,673 Massachusetts State Development Finance Agency, Resource Recovery Revenue Bonds (Ogden Haverhill Associates), AMT, Series B: 1,210 5.35% due 12/01/2015 1,221 2,000 5.50% due 12/01/2019 2,033 9,050 Massachusetts State, HFA, Rental Housing Mortgage Revenue Bonds, AMT, Series A, 5.15% due 7/01/2026 (c) 9,027 10,000 Massachusetts State School Building Authority, Dedicated Sales Tax Revenue Bonds, Series A, 5% due 8/15/2030 (c) 10,373 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments (continued) Muni Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value Michigan--1.5% $ 3,325 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount Clemens General Hospital), Series B, 5.875% due 11/15/2034 $ 3,363 4,795 Michigan State Hospital Finance Authority, Revenue Refunding Bonds (Oakwood Obligated Group), Series A, 6% due 4/01/2022 5,212 Minnesota--0.7% Minneapolis and Saint Paul, Minnesota, Housing and Redevelopment Authority, Health Care System Revenue Bonds (Group Health Plan Inc. Project): 1,000 6% due 12/01/2019 1,093 2,545 6% due 12/01/2021 2,771 Mississippi--1.4% Mississippi Business Finance Corporation, Mississippi, PCR, Refunding (System Energy Resources Inc. Project): 5,000 5.875% due 4/01/2022 5,088 2,910 5.90% due 5/01/2022 2,961 Nevada--0.4% 2,250 Clark County, Nevada, Improvement District Number 142 Special Assessment, 6.375% due 8/01/2023 2,325 New Jersey--15.1% Garden State Preservation Trust of New Jersey, Open Space and Farmland Preservation Revenue Bonds, Series A (c): 3,635 5.80% due 11/01/2021 4,164 5,050 5.80% due 11/01/2023 5,785 New Jersey EDA, Cigarette Tax Revenue Bonds: 10,950 5.625% due 6/15/2018 11,499 9,810 5.75% due 6/15/2029 10,281 17,900 New Jersey EDA, Motor Vehicle Surcharge Revenue Bonds, Series A, 5.25% due 7/01/2033 (d) 18,964 5,540 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 6.625% due 9/15/2012 5,193 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series D: 10,000 5% due 6/15/2018 (a) 10,583 20,000 5% due 6/15/2019 (c) 21,086 New Mexico--2.2% Farmington, New Mexico, PCR, Refunding: 3,000 (Public Service Company of New Mexico-- San Juan), Series D, 6.375% due 4/01/2022 3,183 9,000 (Tucson Electric Power Co.-San Juan Project), Series A, 6.95% due 10/01/2020 9,387 New York--25.5% 1,200 Dutchess County, New York, IDA, Civic Facility Revenue Bonds (Saint Francis Hospital), Series B, 7.25% due 3/01/2019 1,300 Metropolitan Transportation Authority, New York, Revenue Bonds, Series B (a): 5,465 5% due 11/15/2027 5,709 6,600 5% due 11/15/2030 6,846 10,500 Metropolitan Transportation Authority, New York, Revenue Refunding Bonds, Series A, 5.75% due 11/15/2032 11,559 1,755 New York City, New York, City IDA, Civic Facility Revenue Bonds (Special Needs Facilities Pooled Program), Series C-1, 5.50% due 7/01/2007 1,774 Face Amount Municipal Bonds Value New York (concluded) $ 3,500 New York City, New York, City IDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 8.375% due 11/01/2016 $ 3,359 1,110 New York City, New York, City Transitional Finance Authority, Future Tax Secured Revenue Bonds, Series C, 5.50% due 5/01/2009 (i) 1,194 5,000 New York City, New York, GO, Refunding, Series B, 5.75% due 8/01/2015 5,514 2,540 New York City, New York, IDA, Civic Facility Revenue Bonds (Special Needs Facilities Pooled Program), Series C-1, 6.80% due 7/01/2019 2,466 New York City, New York, Sales Tax Asset Receivable Corporation Revenue Bonds (a): 5,550 DRIVERS, Series 1133Z, 7.147% due 10/15/2012 (h) 6,338 4,325 Series A, 5% due 10/15/2032 4,485 3,900 New York Convention Center Development Corporation, New York, Revenue Bonds (Hotel Unit Fee Secured), 5% due 11/15/2027 (a) 4,068 5,580 New York State Dormitory Authority, Lease Revenue Refunding Bonds (Court Facilities), Series A, 5.25% due 5/15/2012 5,998 New York State Dormitory Authority Revenue Bonds: 1,000 (North Shore L I Jewish Group), 5% due 5/01/2012 1,049 7,075 (School Districts Financing Program), Series D, 5.25% due 10/01/2023 (d) 7,598 New York State Dormitory Authority, Revenue Refunding Bonds, Series A: 7,775 (City University System), Consolidated Second Generation, 6.125% due 7/01/2013 (a) 8,653 7,000 (Mount Sinai Health), 6.625% due 7/01/2018 7,528 5,000 (Mount Sinai Health), 6.625% due 7/01/2019 5,369 60 New York State Thruway Authority, Local Highway and Bridge Service Contract, Revenue Refunding Bonds, 5.50% due 4/01/2017 65 New York State Urban Development Corporation, Correctional and Youth Facilities Services Revenue Refunding Bonds, Series A: 4,500 5% due 1/01/2017 4,737 11,650 5.50% due 1/01/2017 12,530 10,000 New York State Urban Development Corporation, Personal Income Tax Revenue Bonds (State Facilities), Series A-1, 5.25% due 3/15/2034 (b) 10,584 Tobacco Settlement Financing Corporation of New York Revenue Bonds: 3,340 Series A-1, 5.50% due 6/01/2016 3,563 6,510 Series A-1, 5.25% due 6/01/2022 (a) 6,924 7,000 Series C-1, 5.50% due 6/01/2021 7,576 10,000 Series C-1, 5.50% due 6/01/2022 10,763 North Carolina--2.2% 3,105 Gaston County, North Carolina, Industrial Facilities and Pollution Control Financing Authority Revenue Bonds (National Gypsum Company Project), AMT, 5.75% due 8/01/2035 3,219 6,000 North Carolina Medical Care Commission, Health Care Facilities, First Mortgage Revenue Refunding Bonds (Presbyterian Homes Project), 7% due 10/01/2031 6,391 3,150 North Carolina Medical Care Commission, Health Care Housing Revenue Bonds (The ARC of North Carolina Projects), Series A, 5.50% due 10/01/2024 3,239 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments (continued) Muni Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value Ohio--0.2% $ 1,280 Port of Greater Cincinnati Development Authority, Ohio, Special Assessment Revenue Bonds (Cooperative Public Parking Infrastructure Project), 6.30% due 2/15/2024 $ 1,358 Pennsylvania--4.6% 3,500 Montgomery County, Pennsylvania, IDA, Revenue Bonds (Whitemarsh Continuing Care Project), 6% due 2/01/2021 3,640 7,710 Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds (National Gypsum Company), AMT, Series A, 6.25% due 11/01/2027 8,216 7,490 Philadelphia, Pennsylvania, Gas Works Revenue Refunding Bonds, 1975 General Ordinance, 17th Series, 5.375% due 7/01/2022 (c) 8,026 Sayre, Pennsylvania, Health Care Facilities Authority, Revenue Refunding Bonds (Guthrie Healthcare System), Series A: 1,750 6.25% due 12/01/2015 1,946 3,000 6.25% due 12/01/2016 3,332 1,490 6.25% due 12/01/2018 1,645 South Carolina--1.7% Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Hospital Facilities, Revenue Refunding Bonds, Series A (d)(e): 4,250 5.25% due 8/15/2023 4,499 3,000 5.25% due 8/15/2024 3,172 2,000 Newberry County, South Carolina, School District, Installment Purchase Revenue Bonds, 5% due 12/01/2030 2,028 Tennessee--3.9% 1,800 Johnson City, Tennessee, Health and Educational Facilities Board, Retirement Facility Revenue Bonds (Appalachian Christian Village Project), Series A, 6% due 2/15/2019 1,814 5,000 McMinn County, Tennessee, IDB, PCR (Calhoun Newsprint Co. Project), AMT, 7.625% due 3/01/2016 5,009 Shelby County, Tennessee, Health, Educational and Housing Facility Board, Hospital Revenue Refunding Bonds (Methodist Healthcare) (i): 6,000 6% due 9/01/2012 6,803 3,500 6.25% due 9/01/2012 4,021 Shelby County, Tennessee, Health, Educational and Housing Facility Board Revenue Bonds (Germantown Village), Series A: 3,550 6.75% due 12/01/2018 3,591 1,450 7% due 12/01/2023 1,476 Texas--15.1% Austin, Texas, Convention Center Revenue Bonds (Convention Enterprises Inc.), First Tier, Series A: 6,445 6.375% due 1/01/2016 6,778 10,260 6.70% due 1/01/2032 10,825 1,500 Bexar County, Texas, Health Facilities Development Corporation, Revenue Refunding Bonds (Army Retirement Residence Project), 6.30% due 7/01/2032 1,594 Face Amount Municipal Bonds Value Texas (concluded) Brazos River Authority, Texas, PCR, Refunding, AMT, Series A: $ 1,500 (TXU Energy Company LLC Project), 6.75% due 4/01/2038 $ 1,686 5,085 (Texas Utility Company), 7.70% due 4/01/2033 5,950 4,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation, Revenue Bonds (Learjet Inc.), AMT, Series A-1, 6.15% due 1/01/2016 4,069 5,000 Dallas-Fort Worth, Texas, International Airport Facility Improvement Corporation, Revenue Refunding Bonds, AMT, Series A-2, 9% due 5/01/2029 4,709 2,440 Gulf Coast, Texas, IDA, Solid Waste Disposal Revenue Bonds (Citgo Petroleum Corporation Project), AMT, 7.50% due 5/01/2025 2,754 6,540 Gulf Coast, Texas, Waste Disposal Authority Revenue Refunding Bonds (International Paper Company), AMT, Series A, 6.10% due 8/01/2024 6,936 4,400 Harris County, Texas, Health Facilities Development Corporation, Hospital Revenue Bonds (Texas Children's Hospital), VRDN, Series B-1, 3% due 10/01/2029 (d)(g) 4,400 Harris County, Texas, Revenue Refunding Bonds, DRIVERS (c)(h): 9,320 Series 1111, 7.135% due 8/15/2009 10,133 6,300 Series 1172-Z, 7.287% due 8/15/2009 6,824 1,500 Houston, Texas, Health Facilities Development Corporation, Retirement Facility Revenue Bonds (Buckingham Senior Living Community), Series A, 7% due 2/15/2023 1,645 7,420 Lower Colorado River Authority, Texas, PCR (Samsung Austin Semiconductor), AMT, 6.95% due 4/01/2030 8,292 2,600 Matagorda County, Texas, Navigation District Number 1, Revenue Refunding Bonds (Reliant Energy Inc.), Series C, 8% due 5/01/2029 2,826 2,300 Port Corpus Christi, Texas, Individual Development Corporation, Environmental Facilities Revenue Bonds (Citgo Petroleum Corporation Project), AMT, 8.25% due 11/01/2031 2,432 5,000 Sabine River Authority, Texas, PCR, Refunding (TXU Electric Company Project/TXU Energy Company LLC), AMT, Series B, 5.75% due 5/01/2030 5,324 Virginia--5.8% James City County, Virginia, IDA, Residential Care Facility Revenue Refunding Bonds, Series A: 3,285 5.75% due 3/01/2017 3,426 1,150 6% due 3/01/2023 1,220 2,250 Loudoun County, Virginia, IDA, IDR, Refunding (Dulles Airport Marriott Hotel), 7.125% due 9/01/2015 2,298 10,735 Pocahontas Parkway Association, Virginia, Toll Road Revenue Bonds, Senior-Series A, 5.50% due 8/15/2028 11,057 15,435 Tobacco Settlement Financing Corporation of Virginia, Asset-Backed Revenue Bonds, 5.625% due 6/01/2037 15,463 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments (concluded) Muni Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value Wyoming--1.6% Sweetwater County, Wyoming, Solid Waste Disposal Revenue Bonds (FMC Corporation Project), AMT: $ 3,895 Series A, 7% due 6/01/2024 $ 3,921 5,000 Series B, 6.90% due 9/01/2024 5,042 Guam--0.4% 2,250 Commonwealth of the Northern Mariana Islands, Guam, GO, Series A, 6.75% due 10/01/2033 2,442 Puerto Rico--8.0% Puerto Rico Electric Power Authority, Power Revenue Bonds: 17,935 Series NN, 5.50% due 7/01/2018 19,159 6,500 Series RR, 5% due 7/01/2025 (f) 6,812 5,390 Puerto Rico Industrial, Medical and Environmental Pollution Control Facilities Financing Authority, Special Facilities Revenue Bonds (American Airlines Inc.), Series A, 6.45% due 12/01/2025 3,817 Face Amount Municipal Bonds Value Puerto Rico (concluded) Puerto Rico Public Buildings Authority, Government Facilities, Revenue Refunding Bonds: $ 5,170 Series D, 5.25% due 7/01/2027 $ 5,285 8,000 Series I, 5.50% due 7/01/2021 8,511 2,525 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.50% due 8/01/2029 2,620 U.S. Virgin Islands--1.6% 1,860 Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds (Hovensa Coker Project), AMT, 6.50% due 7/01/2021 2,097 6,750 Virgin Islands Public Finance Authority, Refinery Facilities Revenue Bonds (Hovensa Refinery), AMT, 6.125% due 7/01/2022 7,374 Total Investments (Cost--$858,125*)--152.0% 880,029 Other Assets Less Liabilities--3.3% 18,913 Preferred Stock, at Redemption Value--(55.3%) (320,073) ---------- Net Assets Applicable to Common Stock--100.0% $ 578,869 ========== * The cost and unrealized appreciation (depreciation) of investments as of November 30, 2005, as computed for federal income tax purposes, were as follows: Aggregate cost $ 857,917 =============== Gross unrealized appreciation $ 24,638 Gross unrealized depreciation (2,526) --------------- Net unrealized appreciation $ 22,112 =============== (a) AMBAC Insured. (b) FGIC Insured. (c) FSA Insured. (d) MBIA Insured. (e) Federal Housing Administration/Veterans' Administration Mortgages packaged by the Federal National Mortgage Association. (f) XL Capital Insured. (g) Security may have a maturity of more than one year at time of issuance, but has variable rate and demand features that qualify it as a short-term security. The rate disclosed is that currently in effect. This rate changes periodically based upon prevailing market rates. (h) The rate disclosed is that currently in effect. This rate changes periodically and inversely based upon prevailing market rates. (i) Prerefunded. Forward interest rate swaps outstanding as of November 30, 2005 were as follows: Notional Unrealized Amount Appreciation Pay a fixed rate of 4.641% and receive a floating rate based on 3-month LIBOR Broker, JPMorgan Chase Bank Expires December 2017 $ 60,000 $ 2,293 See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments Muni New York Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value New York--128.4% $ 760 Albany County, New York, IDA, IDR (Albany College of Pharmacy), Series A, 5.25% due 12/01/2019 $ 792 480 Dutchess County, New York, IDA, Civic Facility Revenue Bonds (Saint Francis Hospital), Series B, 7.25% due 3/01/2019 520 2,000 Erie County, New York, IDA, Life Care Community Revenue Bonds (Episcopal Church Home), Series A, 5.875% due 2/01/2018 2,065 Erie County, New York, IDA, School Facility Revenue Bonds (City of Buffalo Project) (b): 3,835 5.75% due 5/01/2024 4,155 1,000 5.75% due 5/01/2026 1,120 2,000 Hempstead Town, New York, IDA, Resource Recovery Revenue Refunding Bonds (American Refinery - Fuel Co. Project), 5% due 12/01/2010 2,078 1,000 Madison County, New York, IDA, Civic Facility Revenue Bonds (Colgate University Project), Series A, 5% due 7/01/2030 (a) 1,036 1,615 New York City, New York, City Housing Development Corporation, Presidential Revenue Bonds (The Animal Medical Center), Series A, 5.50% due 12/01/2033 1,679 1,415 New York City, New York, City IDA, Civic Facility Revenue Bonds (PSCH Inc. Project), 6.20% due 7/01/2020 1,501 1,000 New York City, New York, City IDA, Revenue Bonds (Visy Paper Inc. Project), AMT, 7.95% due 1/01/2028 1,024 New York City, New York, City IDA, Special Facility Revenue Bonds, AMT: 1,500 (1990 American Airlines Inc. Project), 5.40% due 7/01/2020 990 1,000 (British Airways Plc Project), 7.625% due 12/01/2032 1,074 1,000 (Continental Airlines Inc. Project), 8.375% due 11/01/2016 960 1,000 New York City, New York, City IDA, Special Facilities Revenue Refunding Bonds (Terminal One Group Association Project), AMT, 5.50% due 1/01/2024 1,052 2,980 New York City, New York, City Transitional Finance Authority, Future Tax Secured Revenue Bonds, Series C, 5.50% due 5/01/2009 (h) 3,207 New York City, New York, GO: 1,500 Series J, 5.25% due 5/15/2018 (c) 1,621 3,000 Series J, 5.50% due 6/01/2021 3,227 1,285 Series N, 5% due 8/01/2023 (e) 1,346 New York City, New York, GO, Refunding: 1,000 Series F, 5.25% due 8/01/2009 1,056 2,000 Series G, 5.50% due 8/01/2012 (d) 2,198 500 New York City, New York, Trust for Cultural Resources Revenue Bonds (Museum of American Folk Art), 6.125% due 7/01/2030 (i) 539 New York Convention Center Development Corporation, New York, Revenue Bonds (Hotel Unit Fee Secured) (a): 2,750 5% due 11/15/2024 2,886 1,500 5% due 11/15/2026 1,567 Face Amount Municipal Bonds Value New York (continued) $ 1,000 New York State Dormitory Authority, Mental Health Services Facilities Improvement, Revenue Bonds, Series B, 5% due 2/15/2030 (a) $ 1,033 1,000 New York State Dormitory Authority, Non-State Supported Debt, Insured Revenue Bonds (United Cerebral Palsy Affiliates--Pooled Loan Program), Series A, 5% due 7/01/2034 (j) 1,029 1,000 New York State Dormitory Authority, Non-State Supported Debt, Insured Revenue Refunding Bonds (Canisius College), 5% due 7/01/2018 (c) 1,059 New York State Dormitory Authority Revenue Bonds: 1,500 (North Shore Long Island Jewish Group), 5% due 5/01/2013 1,573 1,735 (Winthrop S. Nassau University), 5.50% due 7/01/2011 1,862 New York State Dormitory Authority, Revenue Refunding Bonds: 1,305 (Lenox Hill Hospital Obligation Group), 5.75% due 7/01/2017 1,345 1,000 (Mount Sinai Health), Series A, 6.50% due 7/01/2015 1,075 1,000 (Mount Sinai Health), Series A, 6.625% due 7/01/2018 1,076 1,000 (State University Educational Facilities), Series A, 5.50% due 5/15/2013 1,099 1,790 New York State Dormitory Authority, State Personal Income Tax Revenue Bonds (Education), Series F, 5% due 3/15/2030 1,842 New York State Dormitory Authority, Supported Debt Revenue Refunding Bonds: 1,500 (Department of Health), Series A, 5% due 7/01/2025 (g) 1,559 1,790 (State University Dormitory Facilities), Series C, 5% due 7/01/2021 (c) 1,893 1,000 New York State Environmental Facilities Corporation, Solid Waste Disposal Revenue Bonds (Waste Management Inc. Project), AMT, Series A, 4.45% due 7/01/2017 1,011 1,000 New York State Environmental Facilities Corporation, State Clean Water and Drinking Revolving Funds Revenue Bonds, Series G, 5.25% due 10/15/2014 1,077 3,500 New York State Local Government Assistance Corporation, Revenue Refunding Bonds, Sub-Lien, Series A-1, 5% due 4/01/2012 (b) 3,759 2,000 New York State Municipal Bond Bank Agency, Special School Purpose Revenue Bonds, Series C, 5.25% due 12/01/2018 2,126 1,000 New York State Thruway Authority, General Revenue Refunding Bonds, Series G, 5% due 1/01/2024 (b) 1,050 3,000 New York State Urban Development Corporation, Correctional and Youth Facilities Services Revenue Refunding Bonds, Series A, 5% due 1/01/2017 3,158 2,000 New York State Urban Development Corporation Revenue Bonds, Subordinate Lien, Corporation Purpose, Series A, 5.125% due 7/01/2019 2,111 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Schedule of Investments (concluded) Muni New York Intermediate Duration Fund, Inc. (In Thousands) Face Amount Municipal Bonds Value New York (concluded) $ 1,000 Niagara Falls, New York, Public Water Authority, Water and Sewer System Revenue Refunding Bonds, 5.50% due 7/15/2034 (d) $ 1,090 Saratoga County, New York, IDA, Civic Facility Revenue Refunding Bonds (The Saratoga Hospital Project), Series A (f): 365 4.375% due 12/01/2013 374 380 4.50% due 12/01/2014 390 395 4.50% due 12/01/2015 404 Schenectady, New York: 500 BAN, 5.25% due 5/26/2006 499 1,000 GO, TAN, 5.90% due 12/30/2005 999 1,085 Suffolk County, New York, IDA, IDR, Refunding (Nissequogue Cogen Partners Facility), AMT, 4.875% due 1/01/2008 1,104 1,000 Tobacco Settlement Financing Corporation of New York, Asset-Backed Revenue Bonds, Series A-1, 5.25% due 6/01/2016 1,061 1,000 Tobacco Settlement Financing Corporation of New York Revenue Bonds, Series C-1, 5.50% due 6/01/2022 1,076 Tompkins County, New York, IDA, Care Community Revenue Refunding Bonds (Kendal at Ithaca), Series A-2: 250 5.75% due 7/01/2018 257 1,000 6% due 7/01/2024 1,031 1,250 Utica, New York, IDA, Civic Facility Revenue Bonds (Utica College Project), Series A, 6.875% due 12/01/2024 1,329 Westchester County, New York, IDA, Civic Facility Revenue Bonds (Special Needs Facilities Pooled Program): 515 Series D-1, 6.80% due 7/01/2019 542 615 Series E-1, 5.50% due 7/01/2007 622 Guam--1.7% 1,000 A.B. Won Guam International Airport Authority, General Revenue Refunding Bonds, AMT, Series C, 5.25% due 10/01/2022 (c) 1,050 Face Amount Municipal Bonds Value Puerto Rico--10.5% Children's Trust Fund Project of Puerto Rico, Tobacco Settlement Revenue Refunding Bonds: $ 750 5% due 5/15/2011 $ 776 1,035 5.375% due 5/15/2033 1,048 1,000 Puerto Rico Commonwealth Highway and Transportation Authority, Transportation Revenue Refunding Bonds, Series K, 5% due 7/01/2030 994 1,100 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series RR, 5% due 7/01/2029 (g) 1,143 425 Puerto Rico Housing Financing Authority, Capital Funding Program Revenue Bonds, 5% due 12/01/2019 442 1,900 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.70% due 2/01/2010 (h) 2,059 U.S. Virgin Islands--2.6% 500 Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds (Hovensa Coker Project), AMT, 6.50% due 7/01/2021 564 1,000 Virgin Islands Public Finance Authority, Senior Lien Revenue Bonds (Matching Fund Loan Note), Series A, 5.25% due 10/01/2024 1,054 Total Municipal Bonds (Cost--$86,202)--143.2% 88,338 Shares Held Short-Term Securities 1,629 CMA New York Municipal Money Fund (k) 1,629 Total Short-Term Securities (Cost--$1,629)--2.7% 1,629 Total Investments (Cost--$87,831*)--145.9% 89,967 Other Assets Less Liabilities--4.4% 2,704 Preferred Stock, at Redemption Value--(50.3%) (31,000) ---------- Net Assets Applicable to Common Stock--100.0% $ 61,671 ========== * The cost and unrealized appreciation (depreciation) of investments as of November 30, 2005, as computed for federal income tax purposes, were as follows: Aggregate cost $ 87,788 =============== Gross unrealized appreciation $ 2,365 Gross unrealized depreciation (186) --------------- Net unrealized appreciation $ 2,179 =============== (a) AMBAC Insured. (b) FSA Insured. (c) MBIA Insured. (d) XL Capital Insured. (e) FGIC. (f) Radian Insured. (g) CIFG Insured. (h) Prerefunded. (i) ACA Insured. (j) Assured Guarantee Insured. (k) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: Net Dividend Affiliate Activity Income CMA New York Municipal Money Fund 1,011 $10 See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Statements of Net Assets Muni Muni New York Intermediate Intermediate Duration Duration As of November 30, 2005 Fund, Inc. Fund, Inc. Assets Investments in unaffiliated securities, at value* $ 880,028,568 $ 88,338,318 Investments in affiliated securities, at value** -- 1,628,894 Unrealized appreciation on forward interest rate swaps 2,292,720 -- Cash 78,368 14,783 Interest receivable 14,742,874 1,399,125 Receivable for securities sold 14,573,878 5,294,062 Prepaid expenses 37,120 19,965 --------------- --------------- Total assets 911,753,528 96,695,147 --------------- --------------- Liabilities Payable for securities purchased 11,998,947 3,932,632 Dividends payable to Common Stock shareholders 504,264 59,771 Payable to investment adviser 235,937 23,975 Offering costs payable 38,709 -- Payable to other affiliates 7,614 5,561 Accrued expenses 26,048 2,193 --------------- --------------- Total liabilities 12,811,519 4,024,132 --------------- --------------- Preferred Stock Preferred Stock, at redemption value, par value $.10 per share++ of AMPS+++ at $25,000 per share liquidation preference 320,073,446 31,000,000 --------------- --------------- Net Assets Applicable to Common Stock Net assets applicable to Common Stock $ 578,868,563 $ 61,671,015 =============== =============== Analysis of Net Assets Applicable to Common Stock Undistributed investment income--net $ 5,233,272 $ 359,285 Undistributed (accumulated) realized capital gains (losses)--net 8,936,825 (454,242) Unrealized appreciation--net 24,196,440 2,135,860 --------------- --------------- Total accumulated earnings--net 38,366,537 2,040,903 --------------- --------------- Common Stock, par value $.10 per share++++ 3,803,493 420,644 Paid-in capital in excess of par $ 536,698,533 $ 59,209,468 --------------- --------------- Net Assets Applicable to Common Stock $ 578,868,563 $ 61,671,015 =============== =============== Net asset value per share of Common Stock $ 15.22 $ 14.66 =============== =============== Market price per share of Common Stock $ 13.96 $ 12.92 =============== =============== * Identified cost in unaffiliated securities $ 858,124,848 $ 86,202,458 =============== =============== ** Identified cost in affiliated securities -- $ 1,628,894 =============== =============== ++ Preferred Stock authorized, issued and outstanding: Series M7 Shares 2,000 -- =============== =============== Series T7 Shares 2,700 -- =============== =============== Series W7 Shares 2,000 -- =============== =============== Series TH7 Shares 2,700 -- =============== =============== Series F7 Shares 2,000 1,240 =============== =============== Series TH28 Shares 1,400 -- =============== =============== ++++ Common Stock issued and outstanding 38,034,934 4,206,439 =============== =============== +++ Auction Market Preferred Stock. See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Statements of Operations Muni Muni New York Intermediate Intermediate Duration Duration For the Six Months Ended November 30, 2005 Fund, Inc. Fund, Inc. Investment Income Interest and amortization of premium and discount earned $ 22,349,152 $ 2,149,438 Dividends from affiliates -- 10,419 --------------- --------------- Total Income 22,349,152 2,159,857 --------------- --------------- Expenses Investment advisory fees $ 2,465,897 $ 258,152 Commission fees 394,958 39,707 Accounting services 128,370 29,835 Transfer agent fees 45,047 15,700 Professional fees 30,342 26,758 Printing and shareholder reports 25,232 3,606 Custodian fees 23,836 5,990 Pricing fees 14,267 4,908 Listing fees 13,402 9,664 Directors' fees and expenses 13,189 13,503 Other 29,337 15,402 --------------- --------------- Total expenses before waiver and reimbursement 3,183,877 423,225 Waiver and reimbursement of expenses (672,517) (72,559) --------------- --------------- Total expenses after waiver and reimbursement 2,511,360 350,666 --------------- --------------- Investment income--net 19,837,792 1,809,191 --------------- --------------- Realized & Unrealized Gain (Loss)--Net Realized gain (loss) on: Investments--net 4,522,485 117,859 Forward interest rate swaps--net (3,070,421) -- --------------- --------------- Total realized gain--net 1,452,064 117,859 Change in unrealized appreciation/depreciation on: Investments--net (17,316,965) (1,685,229) Forward interest rate swaps--net 6,305,190 -- --------------- --------------- Total change in unrealized appreciation/depreciation--net (11,011,775) (1,685,229) --------------- --------------- Total realized and unrealized loss--net (9,559,711) (1,567,370) --------------- --------------- Dividends & Distributions to Preferred Stock Shareholders Investment income--net (2,873,904) (346,692) Realized gain--net (1,412,045) -- --------------- --------------- Total dividends and distributions to Preferred Stock shareholders (4,285,949) (346,692) --------------- --------------- Net Increase (Decrease) in Net Assets Resulting from Operations $ 5,992,132 $ (104,871) =============== =============== See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Statements of Changes in Net Assets Muni Intermediate Duration Fund, Inc. For the Six For the Months Ended Year Ended November 30, May 31, Increase (Decrease) in Net Assets: 2005 2005 Operations Investment income--net $ 19,837,792 $ 38,953,922 Realized gain--net 1,452,064 10,418,746 Change in unrealized appreciation/depreciation--net (11,011,775) 33,195,645 Dividends and distributions to Preferred Stock shareholders (4,285,949) (4,936,122) --------------- --------------- Net increase in net assets resulting from operations 5,992,132 77,632,191 --------------- --------------- Dividends & Distributions to Common Stock Shareholders Investment income--net (16,431,091) (32,862,183) Realized gain--net -- (7,146,878) --------------- --------------- Net decrease in net assets resulting from dividends and distributions to Common Stock shareholders (16,431,091) (40,009,061) --------------- --------------- Stock Transactions Offering and underwriting costs resulting from the issuance of Preferred Stock (494,510) -- --------------- --------------- Net decrease in net assets derived from stock transactions (494,510) -- --------------- --------------- Net Assets Applicable to Common Stock Total increase (decrease) in net assets applicable to Common Stock (10,933,469) 37,623,130 Beginning of period 589,802,032 552,178,902 --------------- --------------- End of period* $ 578,868,563 $ 589,802,032 =============== =============== * Undistributed investment income--net $ 5,233,272 $ 4,700,475 =============== =============== See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Statements of Changes in Net Assets Muni New York Intermediate Duration Fund, Inc. For the Six For the Months Ended Year Ended November 30, May 31, Increase (Decrease) in Net Assets: 2005 2005 Operations Investment income--net $ 1,809,191 $ 3,594,122 Realized gain (loss)--net 117,859 (514,710) Change in unrealized appreciation--net (1,685,229) 2,943,785 Dividends to Preferred Stock shareholders (346,692) (481,976) --------------- --------------- Net increase (decrease) in net assets resulting from operations (104,871) 5,541,221 --------------- --------------- Dividends to Common Stock Shareholders Investment income--net (1,514,318) (3,028,634) --------------- --------------- Net decrease in net assets resulting from dividends to Common Stock shareholders (1,514,318) (3,028,634) --------------- --------------- Net Assets Applicable to Common Stock Total increase (decrease) in net assets applicable to Common Stock (1,619,189) 2,512,587 Beginning of period 63,290,204 60,777,617 --------------- --------------- End of period* $ 61,671,015 $ 63,290,204 =============== =============== * Undistributed investment income--net $ 359,285 $ 411,104 =============== =============== See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Financial Highlights Muni Intermediate Duration Fund, Inc. For the Six For the For the Period Months Ended Year Ended August 1, 2003++ The following per share data and ratios have been derived November 30, May 31, to May 31, from information provided in the financial statements. 2005 2005 2004 Per Share Operating Performance Net asset value, beginning of period $ 15.51 $ 14.52 $ 14.33 ------------ ------------ ------------ Investment income--net .52+++++ 1.02+++++ .79 Realized and unrealized gain (loss)--net (.25) 1.15 .21 Dividends and distributions to Preferred Stock shareholders: Investment income--net (.08) (.11) (.06) Realized gain--net (.04) (.02) -- ------------ ------------ ------------ Total from investment operations .15 2.04 .94 ------------ ------------ ------------ Less dividends and distributions to Common Stock shareholders: Investment income--net (.43) (.86) (.65) Realized gain--net -- (.19) -- ------------ ------------ ------------ Total dividends and distributions to Common Stock shareholders (.43) (1.05) (.65) ------------ ------------ ------------ Offering costs resulting from issuance of Common Stock -- -- (.02) ------------ ------------ ------------ Offering and underwriting costs resulting from issuance of Preferred Stock (.01) -- (.08) ------------ ------------ ------------ Net asset value, end of period $ 15.22 $ 15.51 $ 14.52 ============ ============ ============ Market price per share, end of period $ 13.96 $ 13.94 $ 13.10 ============ ============ ============ Total Investment Return** Based on net asset value per share 1.13%+++ 15.36% 6.09%+++ ============ ============ ============ Based on market price per share 3.21%+++ 14.93% (8.59%)+++ ============ ============ ============ Ratios Based on Average Net Assets of Common Stock Expenses, net of waiver*** .85%* .84% .75%* ============ ============ ============ Expenses*** 1.08%* 1.07% 1.03%* ============ ============ ============ Investment income--net*** 6.75%* 6.77% 6.51%* ============ ============ ============ Amount of dividends to Preferred Stock shareholders .98%* .74% .48%* ============ ============ ============ Investment income--net, to Common Stock shareholders 5.77%* 6.03% 6.03%* ============ ============ ============ Ratios Based on Average Net Assets of Preferred Stock Dividends to Preferred Stock shareholders 1.86%* 1.50% .97%* ============ ============ ============ Supplemental Data Net assets applicable to Common Stock, end of period (in thousands) $ 578,869 $ 589,802 $ 552,179 ============ ============ ============ Preferred Stock outstanding, end of period (in thousands) $ 320,000 $ 285,000 $ 285,000 ============ ============ ============ Portfolio turnover 29.19% 54.55% 70.29% ============ ============ ============ SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Financial Highlights (concluded) Muni Intermediate Duration Fund, Inc. For the Six For the For the Period Months Ended Year Ended August 1, 2003++ The following per share data and ratios have been derived November 30, May 31, to May 31, from information provided in the financial statements. 2005 2005 2004 Leverage Asset coverage per $1,000 $ 2,809 $ 3,069 $ 2,937 ============ ============ ============ Dividends Per Share on Preferred Stock Outstanding Series M7++++--Investment income--net $ 223 $ 372 $ 190 ============ ============ ============ Series T7++++--Investment income--net $ 225 $ 377 $ 192 ============ ============ ============ Series W7++++--Investment income--net $ 229 $ 374 $ 188 ============ ============ ============ Series TH7++++--Investment income--net $ 240 $ 375 $ 188 ============ ============ ============ Series F7++++--Investment income--net $ 218 $ 373 $ 189 ============ ============ ============ Series TH28++++++--Investment income--net $ 198 -- -- ============ ============ ============ * Annualized. ** Total investment returns based on market value, which can be significantly greater or lesser than the net asset value, may result in substantially different returns. Total investment returns exclude the effects of sales charges. *** Do not reflect the effect of dividends to Preferred Stock shareholders. ++ Commencement of operations. ++++ Issued on August 20, 2003. ++++++ Issued on August 3, 2005. +++ Aggregate total investment return. +++++ Based on average shares outstanding. See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Financial Highlights Muni New York Intermediate Duration Fund, Inc. For the Six For the For the Period Months Ended Year Ended August 1, 2003++ The following per share data and ratios have been derived November 30, May 31, to May 31, from information provided in the financial statements. 2005 2005 2004 Per Share Operating Performance Net asset value, beginning of period $ 15.05 $ 14.45 $ 14.33 ------------ ------------ ------------ Investment income--net .43+++++ .85+++++ .68 Realized and unrealized gain (loss)--net (.38) .58 .19 Dividends to Preferred Stock shareholders from investment income--net (.08) (.11) (.06) ------------ ------------ ------------ Total from investment operations (.03) 1.32 .81 ------------ ------------ ------------ Less dividends to Common Stock shareholders from investment income--net (.36) (.72) (.54) ------------ ------------ ------------ Offering costs resulting from issuance of Common Stock -- -- (.03) ------------ ------------ ------------ Offering and underwriting costs resulting from issuance of Preferred Stock -- -- (.12) ------------ ------------ ------------ Net asset value, end of period $ 14.66 $ 15.05 $ 14.45 ============ ============ ============ Market price per share, end of period $ 12.92 $ 13.44 $ 12.79 ============ ============ ============ Total Investment Return** Based on net asset value per share .02%+++ 9.99% 4.71%+++ ============ ============ ============ Based on market price per share (1.30%)+++ 10.97% (11.46%)+++ ============ ============ ============ Ratios Based on Average Net Assets of Common Stock Total expenses, net of waiver and reimbursement*** 1.12%* 1.15% .81%* ============ ============ ============ Total expenses*** 1.35%* 1.38% 1.19%* ============ ============ ============ Total investment income--net*** 5.76%* 5.75% 5.40%* ============ ============ ============ Amount of dividends to Preferred Stock shareholders 1.10%* .77% .45%* ============ ============ ============ Investment income--net, to Common Stock shareholders 4.66%* 4.98% 4.95%* ============ ============ ============ Ratios Based on Average Net Assets of Preferred Stock Dividends to Preferred Stock shareholders 2.23%* 1.55% .96%* ============ ============ ============ Supplemental Data Net assets applicable to Common Stock, end of period (in thousands) $ 61,671 $ 63,290 $ 60,778 ============ ============ ============ Preferred Stock outstanding, end of period (in thousands) $ 31,000 $ 31,000 $ 31,000 ============ ============ ============ Portfolio turnover 29.24% 16.51% 21.02% ============ ============ ============ Leverage Asset coverage per $1,000 $ 2,989 $ 3,042 $ 2,961 ============ ============ ============ Dividends Per Share on Preferred Stock Outstanding Series F7++++--Investment income--net $ 280 $ 389 $ 188 ============ ============ ============ * Annualized. ** Total investment returns based on market value, which can be significantly greater or lesser than the net asset value, may result in substantially different returns. Total investment returns exclude the effects of sales charges. *** Do not reflect the effect of dividends to Preferred Stock shareholders. ++ Commencement of operations. ++++ The Fund's Preferred Stock was issued on August 20, 2003. +++ Aggregate total investment return. +++++ Based on average shares outstanding. See Notes to Financial Statements. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Notes to Financial Statements 1. Significant Accounting Policies: Muni Intermediate Duration Fund, Inc. and Muni New York Intermediate Duration Fund, Inc. (the "Funds" or individually as the "Fund") are registered under the Investment Company Act of 1940, as amended, as non-diversified, closed-end management investment companies. The Funds' financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to present a fair statement of the results for the interim period. All such adjustments are of a normal, recurring nature. The Funds determine and make available for publication the net asset values of their Common Stock on a daily basis. Each Fund's Common Stock shares are listed on the New York Stock Exchange under the symbol MUI for Muni Intermediate Duration Fund, Inc. and MNE for Muni New York Intermediate Duration Fund, Inc. (a) Valuation of investments--Municipal bonds are traded primarily in the over- the-counter ("OTC") markets and are valued at the last available bid price in the OTC market or on the basis of values as obtained by a pricing service. Pricing services use valuation matrixes that incorporate both dealer-supplied valuations and valuation models. The procedures of the pricing service and its valuations are reviewed by the officers of the Funds under the general direction of the Board of Directors. Such valuations and procedures are reviewed periodically by the Board of Directors of the Funds. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their closing prices as of the close of such exchanges. Options written or purchased are valued at the last sale price in the case of exchange- traded options. In the case of options traded in the OTC market, valuation is the last asked price (options written) or the last bid price (options purchased). Swap agreements are valued by quoted fair values received daily by the Fund's pricing service. Short-term investments with a remaining maturity of 60 days or less are valued at amortized cost, which approximates market value, under which method the investment is valued at cost and any premium or discount is amortized on a straight line basis to maturity. Investments in open-end investment companies are valued at their net asset value each business day. Securities and other assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Board of Directors of the Funds. (b) Derivative financial instruments--Each Fund may engage in various portfolio investment strategies both to increase the return of the Fund and to hedge, or protect, their exposure to interest rate movements and movements in the securities markets. Losses may arise due to changes in the value of the contract or if the counterparty does not perform under the contract. * Financial futures contracts--Each Fund may purchase or sell financial futures contracts and options on such futures contracts. Futures contracts are contracts for delayed delivery of securities at a specific future date and at a specific price or yield. Upon entering into a contract, the Fund deposits and maintains as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Fund agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in value of the contract. Such receipts or payments are known as variation margin and are recorded by the Fund as unrealized gains or losses. When the contract is closed, the Fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. * Options--Each Fund may purchase and write call and put options. When the Fund writes an option, an amount equal to the premium received by the Fund is reflected as an asset and an equivalent liability. The amount of the liability is subsequently marked-to-market to reflect the current market value of the option written. When a security is purchased or sold through an exercise of an option, the related premium paid (or received) is added to (or deducted from) the basis of the security acquired or deducted from (or added to) the proceeds of the security sold. When an option expires (or the Fund enters into a closing transaction), the Fund realizes a gain or loss on the option to the extent of the premiums received or paid (or gain or loss to the extent the cost of the closing transaction exceeds the premium paid or received). SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Notes to Financial Statements (continued) Written and purchased options are non-income producing investments. * Forward interest rate swaps--Each Fund may enter into forward interest rate swaps. In a forward interest rate swap, the Fund and the counterparty agree to make periodic net payments on a specified notional contract amount, commencing on a specified future effective date, unless terminated earlier. When the agreement is closed, the Fund records a realized gain or loss in an amount equal to the value of the agreement. (c) Income taxes--It is each Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Therefore, no federal income tax provision is required. (d) Security transactions and investment income--Security transactions are recorded on the dates the transactions are entered into (the trade dates). Realized gains and losses on security transactions are determined on the identified cost basis. Dividend income is recorded on the ex-dividend dates. Interest income is recognized on the accrual basis. The Funds amortize all premiums and discounts on debt securities. (e) Dividends and distributions--Dividends from net investment income are declared and paid monthly. Distributions of capital gains are recorded on the ex-dividend dates. (f) Offering costs--Direct expenses relating to the public offering of each Fund's Preferred Stock were charged to capital at the time of issuance of the shares. 2. Investment Advisory Agreement and Transactions with Affiliates: Each Fund has entered into an Investment Advisory Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. FAM is responsible for the management of each Fund's portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Funds. For such services, each Fund pays a monthly fee at an annual rate of .55% of the Fund's average daily net assets, including proceeds from the issuance of Preferred Stock. FAM has contractually agreed to waive a portion of its fee during the first seven years of each Fund's operations ending July 31, 2010, as follows: Fee Waiver (As a Percentage of Average Daily Net Assets) Years 1 through 5 .15% Year 6 .10% Year 7 .05% Year 8 and thereafter .00% FAM has not agreed to waive any portion of its fee beyond July 31, 2010. For the six months ended November 30, 2005, FAM earned fees and waived a portion of its fees as follows: Investment Advisory Fees Fees Earned Waived Muni Intermediate Duration Fund, Inc. $2,465,897 $672,517 Muni New York Intermediate Duration Fund, Inc. $ 258,152 $ 70,405 In addition, FAM has agreed to reimburse its management fee by the amount of management fees Muni New York Intermediate Duration Fund, Inc. pays to FAM indirectly through its investment in CMA New York Municipal Money Fund. For the six months ended November 30, 2005, FAM reimbursed the Fund in the amount of $2,154. For the six months ended November 30, 2005, MerrillLynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), an affiliate of FAM, received underwriting fees of $350,000 in connection with the issuance of Muni Intermediate Duration Fund, Inc.'s Preferred Stock. For the six months ended November 30, 2005, the Funds reimbursed FAM for certain accounting services. The reimbursements were as follows: Reimbursement Muni Intermediate Duration Fund, Inc. $9,729 Muni New York Intermediate Duration Fund, Inc. $ 952 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Notes to Financial Statements (concluded) Certain officers and/or directors of the Funds are officers and/or directors of FAM, PSI, and/or ML & Co. 3. Investments: Purchases and sales of investments, excluding short-term securities, for the six months ended November 30, 2005 were as follows: Muni Muni New York Intermediate Intermediate Duration Duration Fund, Inc. Fund, Inc. Total Purchases $270,265,460 $26,292,471 Total Sales $258,685,824 $28,969,062 4. Stock Transactions: Each Fund is authorized to issue 200,000,000 shares of stock, including Preferred Stock, par value $.10 per share, all of which were initially classified as Common Stock. The Board of Directors is authorized, however, to reclassify any unissued shares of beneficial interest without approval of the holders of Common Stock. Preferred Stock Auction Market Preferred Stock are redeemable shares of Preferred Stock of the Fund, with a par value of $.10 per share and a liquidation preference of $25,000 per share plus accrued and unpaid dividends, that entitle their holders to receive cash dividends at an annual rate that may vary for the successive dividend periods. The yields in effect at November 30, 2005 were as follows: Muni Muni New York Intermediate Intermediate Duration Duration Fund, Inc. Fund, Inc. Series M7 3.05% -- Series T7 3.05% -- Series TH7 2.95% -- Series W7 2.95% -- Series F7 2.95% 2.75% Series TH28 2.90% -- Muni Intermediate Duration Fund, Inc. Shares issued and outstanding during the six months ended November 30, 2005 increased by 1,400 from the issuance of an additional series of Preferred Stock and during the year ended May 31, 2005 remained constant. Muni New York Intermediate Duration Fund, Inc. Shares issued and outstanding during the six months ended November 30, 2005 and the year ended May 31, 2005 remained constant. Each Fund pays commissions to certain broker-dealers at the end of each auction at an annual rate ranging from .25% to .375%, calculated on the proceeds of each auction. For the six months ended November 30, 2005, MLPF&S earned $333,716 relating to Muni Intermediate Duration Fund, Inc. and $28,971 relating to Muni New York Intermediate Duration Fund, Inc., as commissions. 5. Capital Loss Carryforward: Muni New York Intermediate Duration Fund, Inc. On May 31, 2005, the Fund had a net capital loss carryforward of $572,101, of which $57,391 expires in 2012 and $514,710 expires in 2013. This amount will be available to offset any like amounts of any future taxable gains. 6. Subsequent Event: Each Fund paid a tax-exempt income dividend to holders of Common Stock in the amounts of $.072000 per share and $.060000 per share relating to Muni Intermediate Duration Fund, Inc. and Muni New York Intermediate Duration Fund, Inc., respectively, on December 29, 2005 to shareholders of record on December 15, 2005. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Proxy Results Muni Intermediate Duration Fund, Inc. During the six-month period ended November 30, 2005, Muni Intermediate Duration Fund, Inc.'s Common Stock shareholders voted on the following proposal. The proposal was approved at a shareholders' meeting on August 23, 2005. A description of the proposal and number of shares voted are as follows: Shares Voted Shares Withheld For From Voting 1. To elect the Fund's Directors: Robert C. Doll, Jr. 36,281,553 1,033,143 John Francis O'Brien 36,265,312 1,049,384 David H. Walsh 36,282,267 1,032,429 Fred G. Weiss 36,277,880 1,036,816 During the six-month period ended November 30, 2005, Muni Intermediate Duration Fund, Inc.'s Preferred Stock shareholders (Series F, M, T, TH & W) voted on the following proposal. The proposal was approved at a shareholders' meeting on August 23, 2005. A description of the proposal and number of shares voted are as follows: Shares Voted Shares Withheld For From Voting 1. To elect the Fund's Board of Directors: Robert C. Doll, Jr., Donald W. Burton, Laurie Simon Hodrick, John Francis O'Brien, David H. Walsh and Fred G. Weiss 10,401 20 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Proxy Results Muni New York Intermediate Duration Fund, Inc. During the six-month period ended November 30, 2005, Muni New York Intermediate Duration Fund, Inc.'s Common Stock shareholders voted on the following proposal. The proposal was approved at a shareholders' meeting on August 23, 2005. A description of the proposal and number of shares voted are as follows: Shares Voted Shares Withheld For From Voting 1. To elect the Fund's Directors: Robert C. Doll, Jr. 4,055,051 110,370 John Francis O'Brien 4,055,051 110,370 David H. Walsh 4,053,718 111,703 Fred G. Weiss 4,056,251 109,170 During the six-month period ended November 30, 2005, Muni Intermediate Duration Fund, Inc.'s Preferred Stock shareholders (Series F) voted on the following proposal. The proposal was approved at a shareholders' meeting on August 23, 2005. A description of the proposal and number of shares voted are as follows: Shares Voted Shares Withheld For From Voting 1. To elect the Fund's Board of Directors: Robert C. Doll, Jr., Donald W. Burton, Laurie Simon Hodrick, John Francis O'Brien, David H. Walsh and Fred G. Weiss 1,093 28 SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Disclosure of Investment Advisory Agreement Activities of and Composition of the Board of Directors All but one member of each Fund's Board of Directors is an independent director whose only affiliation with Fund Asset Management, L.P. (the "Investment Adviser") or other Merrill Lynch affiliates is as a director of each Fund and as a trustee or director of certain other funds advised by the Investment Adviser or its affiliates. The Chairmen of the Boards are also independent directors. New director nominees are chosen as nominees by a Nominating Committee consisting of independent directors. All independent directors also are members of each Board's Audit Committee and the independent directors meet in executive session at each in-person Board meeting. The Board and the Audit Committee meet in person for at least two days each quarter and conduct other in-person and telephone meetings throughout the year, some of which are formal board meetings, and some of which are informational meetings. The independent counsel to the independent directors attends all in-person Board and Audit Committee meetings and other meetings at the independent directors' request. Investment Advisory Agreements--Matters Considered by the Board Every year, each Board considers approval of each Fund's investment advisory agreement (the "Investment Advisory Agreement"). Each Board assesses the nature, scope and quality of the services provided to each Fund by the personnel of the Investment Adviser and its affiliates, including administrative services, shareholder services, oversight of fund accounting, marketing services and assistance in meeting legal and regulatory requirements. Each Board also receives and assesses information regarding the services provided to the Fund by certain unaffiliated service providers. At various times throughout the year, each Board also considers a range of information in connection with its oversight of the services provided by the Investment Adviser and its affiliates. Among the matters considered are: (a) fees (in addition to management fees) paid to the Investment Adviser and its affiliates by each Fund; (b) Fund operating expenses paid to third parties; (c) the resources devoted to and compliance reports relating to each Fund's investment objective, policies and restrictions, and its compliance with its Code of Ethics and the Investment Adviser's compliance policies and procedures; and (d) the nature, cost and character of non-investment management services provided by the Investment Adviser and its affiliates. Each Board believes that the Investment Adviser is one of the most experienced global asset management firms and considers the overall services provided by the Investment Adviser to be of high quality. Each Board also believes that the Investment Adviser is financially sound and well managed and notes that the Investment Adviser is affiliated with one of America's largest financial firms. Each Board works closely with the Investment Adviser in overseeing the Investment Adviser's efforts to achieve good performance. As part of this effort, each Board discusses portfolio manager effectiveness and, when performance is not satisfactory, discusses with the Investment Adviser taking steps such as changing investment personnel. Annual Consideration of Approvals by the Board of Directors In the period prior to the Board meeting to consider renewal of the Investment Advisory Agreement, each Board requests and receives materials specifically relating to the Fund's Investment Advisory Agreement. These materials are prepared separately for each Fund, and include (a) information compiled by Lipper Inc. ("Lipper") on the fees and expenses and the investment performance of the Fund as compared to a comparable group of funds as classified by Lipper; (b) information comparing the Fund's market price with its net asset value per share; (c) a discussion by the Fund's portfolio management team of investment strategies used by the Fund during its most recent fiscal year; (d) information on the profitability to the Investment Adviser and its affiliates of the Investment Advisory Agreement and other relationships with the Fund; and (e) information provided by the Investment Adviser concerning services related to the valuation and pricing of Fund portfolio holdings, allocation of Fund brokerage fees, the Fund's portfolio turnover statistics, and direct and indirect benefits to the Investment Adviser and its affiliates from their relationship with the Fund. Certain Specific Renewal Data In connection with the most recent renewal of each Fund's Investment Advisory Agreement in November 2005, the independent directors' and Board's review included the following: Investment Adviser's Services and Fund Performance--Each Board reviewed the nature, extent and quality of services provided by the Investment Adviser, including the investment advisory services and the resulting performance of each Fund. The Boards focused primarily on the Investment Adviser's investment advisory services and each Fund's investment performance, having concluded that the other services provided to each Fund by the Investment Adviser were satisfactory. Each Board compared Fund performance - both including and excluding the effects of each Fund's fees and expenses - to the performance of a comparable group of mutual funds, and the performance of a relevant index or combination of indexes. While each Board reviews performance data quarterly, consistent with the Investment Adviser's investment goals, each Board attaches primary importance to performance over relatively long periods of time, typically three to five years. For a fund in operation for less than three years, such as each of the Funds, the Board considers performance for the life of the fund. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 The Board noted that for the period ended August 31, 2005, Muni Intermediate Duration Fund, Inc.'s performance was in the second quintile for the one-year period. The Board reviewed the Fund's investment objectives and strategies. The Board discussed with senior management of the Investment Adviser responsible for investment operations and the senior management of the Investment Adviser's municipal investing group the strategies being used to achieve the stated objectives. Among other things, the Board considered the size, education and experience of the Investment Adviser's investment staff, its use of technology, and the Investment Adviser's approach to training and retaining portfolio managers and other research, advisory and management personnel. The Board also reviewed the Investment Adviser's compensation policies and practices with respect to the Fund's portfolio manager. The Board also considered the experience of the Fund's portfolio manager and noted that Mr. DiMella has over ten years of experience investing in municipal securities. The Board concluded that the Fund's performance supported the continuation of the Investment Advisory Agreement. The Board noted that Muni New York Intermediate Duration Fund, Inc.'s performance was in the fifth quintile for the one-year period ended August 31, 2005. In considering this measure of relative performance, the Board took into account the fact that the universe of comparable funds was very small. The Board reviewed the Fund's investment objectives and strategies. The Board discussed with senior management of the Investment Adviser responsible for investment operations and the senior management of the Investment Adviser's municipal investing group the strategies being used to achieve the stated objectives. Among other things, the Board considered the size, education and experience of the Investment Adviser's investment staff, its use of technology, and the Investment Adviser's approach to training and retaining portfolio managers and other research, advisory and management personnel. The Board also reviewed the Investment Adviser's compensation policies and practices with respect to the Funds' portfolio manager. The Board also considered the experience of the Funds' portfolio manager and noted that Mr. Browse has over five years of experience investing in municipal securities. The Board concluded that the Fund's performance supported the continuation of the Investment Advisory Agreement. Management Fees and Other Expenses--Each Board reviews the Fund's contractual management fee rate and actual management fee rate as a percentage of total assets at common asset levels - the actual rate includes advisory and administrative service fees and the effects of any fee waivers - compared to the other funds in its Lipper category. It also compares the Fund's total expenses to those of other comparable funds. The Investment Adviser noted that it did not have clients other than investment companies with similar investment mandates. With respect to Muni Intermediate Duration Fund, Inc. the Board noted that the contractual and actual management fee rates, as well as total expenses, were lower than the median fees charged by comparable funds, as determined by Lipper. With respect to Muni New York Intermediate Duration Fund, Inc. the Board noted that contractual and actual management fee rates, as well as total expenses, were equal to the median fees charged by comparable funds, as determined by Lipper. Each Board concluded that the Fund's management fee and fee rate and overall expense ratio are reasonable compared to those of other comparable funds. Profitability--Each Board considers the cost of the services provided to the Fund by the Investment Adviser, and the Investment Adviser's and its affiliates' profits relating to the management and distribution of the Fund and the MLIM/FAM-advised funds. As part of its analysis, each Board reviewed the Investment Adviser's methodology in allocating its costs to the management of the Fund and concluded that there was a reasonable basis for the allocation. The Boards also considered federal court decisions discussing an investment adviser's profitability and profitability levels considered to be reasonable in those decisions. Each Board believes the Investment Adviser's profits are reasonable in relation to the nature and quality of services provided. Economies of Scale--Each Board considered the extent to which economies of scale might be realized as the assets of a Fund increase and whether there should be changes in the management fee rate or structure in order to enable the Fund to participate in these economies of scale. Each Board considered economies of scale to the extent applicable to each Fund's closed-end structure and determined that each Fund appropriately benefits from any economies of scale and no changes were currently necessary. Conclusion After the independent directors deliberated in executive session, each entire Board, including all of the independent directors, approved the renewal of the existing Investment Advisory Agreement, concluding that the advisory fee was reasonable in relation to the services provided and that a contract renewal was in the best interests of the shareholders. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Officers and Directors Robert C. Doll, Jr., President and Director Donald W. Burton, Director Laurie Simon Hodrick, Director John F. O'Brien, Director David H. Walsh, Director Fred G. Weiss, Director Donald C. Burke, Vice President and Treasurer Kenneth A. Jacob, Senior Vice President John M. Loffredo, Senior Vice President Timothy T. Browse, Vice President Robert A. DiMella, Vice President Jeffrey Hiller, Chief Compliance Officer Alice A. Pellegrino, Secretary Custodian State Street Bank and Trust Company P.O. Box 351 Boston, MA 02101 Transfer Agents Common Stock: EquiServe (c/o Computershare Investor Services) P.O. Box 43010 Providence, RI 02940-3010 1-800-426-5523 Preferred Stock: The Bank of New York 101 Barclay Street--7 West New York, NY 10286 Investment Objectives NYSE Symbol Muni Intermediate Duration Fund, Inc. seeks to provide MUI shareholders with high current income exempt from federal income taxes by investing primarily in a portfolio of municipal obligations, the interest on which, in the opinion of bond counsel to the issuer, is exempt from federal income taxes. NYSE Symbol Muni New York Intermediate Duration Fund, Inc. seeks to provide MNE shareholders with high current income exempt from federal income taxes and New York State and New York City personal income taxes by investing primarily in a portfolio of municipal obligations, the interest on which, in the opinion of bond counsel to the issuer, is exempt from federal income taxes and New York State and New York City personal income taxes. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Availability of Quarterly Schedules of Investments The Funds file their complete schedules of portfolio holdings with the Securities and Exchange Commission ("SEC") for the first and third quarters of each fiscal year on Form N-Q. The Funds' Forms N-Q are available on the SEC's Web site at http://www.sec.gov. The Funds' Forms N-Q may also be reviewed and copied at the SEC's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. Electronic Delivery The Funds offer electronic delivery of communications to their shareholders. In order to receive this service, you must register your account and provide us with e-mail information. To sign up for this service, simply access this Web site at http://www.icsdelivery.com/live and follow the instructions. When you visit this site, you will obtain a personal identification number (PIN). You will need this PIN should you wish to update your e-mail address, choose to discontinue this service and/or make any other changes to the service. This service is not available for certain retirement accounts at this time. SEMI-ANNUAL REPORTS NOVEMBER 30, 2005 Item 2 - Code of Ethics - Not Applicable to this semi-annual report Item 3 - Audit Committee Financial Expert - Not Applicable to this semi- annual report Item 4 - Principal Accountant Fees and Services - Not Applicable to this semi-annual report Item 5 - Audit Committee of Listed Registrants - Not Applicable to this semi-annual report Item 6 - Schedule of Investments - Not Applicable Item 7 - Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies - Not Applicable to this semi- annual report Item 8 - Portfolio Managers of Closed-End Management Investment Companies - Not Applicable to this semi-annual report Item 9 - Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers - Not Applicable Item 10 - Submission of Matters to a Vote of Security Holders - Not Applicable Item 11 - Controls and Procedures 11(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. 11(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the last fiscal half-year of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 12 - Exhibits attached hereto 12(a)(1) - Code of Ethics - Not Applicable to this semi-annual report 12(a)(2) - Certifications - Attached hereto 12(a)(3) - Not Applicable 12(b) - Certifications - Attached hereto 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. Muni Intermediate Duration Fund, Inc. By: /s/ Robert C. Doll, Jr. ---------------------------- Robert C. Doll, Jr., Chief Executive Officer of Muni Intermediate Duration Fund, Inc. Date: January 25, 2006 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/ Robert C. Doll, Jr. ---------------------------- Robert C. Doll, Jr., Chief Executive Officer of Muni Intermediate Duration Fund, Inc. Date: January 25, 2006 By: /s/ Donald C. Burke ---------------------------- Donald C. Burke, Chief Financial Officer of Muni Intermediate Duration Fund, Inc. Date: January 25, 2006