UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-6692 Name of Fund: MuniYield California Insured Fund, Inc. Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Terry K. Glenn, President, MuniYield California Insured 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: 10/31/03 Date of reporting period: 11/01/02 - 10/31/03 Item 1 - Attach shareholder report [LOGO] Merrill Lynch Investment Managers www.mlim.ml.com MuniYield California Insured Fund, Inc. Annual Report October 31, 2003 [LOGO] Merrill Lynch Investment Managers MuniYield California Insured Fund, Inc. The Benefits and Risks of Leveraging MuniYield California Insured Fund, Inc. utilizes leveraging to seek to enhance the yield and net asset value of its Common Stock. However, these objectives cannot be achieved in all interest rate environments. To leverage, the 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 the 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. Of course, increases in short-term interest rates would reduce (and even eliminate) the dividends on the Common Stock. 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 Fund 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 Fund 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 Fund invests in inverse floaters, the market value of the Fund's portfolio and the net asset value of the Fund's shares may also be more volatile than if the Fund did not invest in these securities. As of October 31, 2003, the percentage of the Fund's total net assets invested in inverse floaters was 10.03%. Swap Agreements The Fund may also 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. 2 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 A Letter From the President Dear Shareholder As 2003 draws to a close, it seems appropriate to reflect on what has been a meaningful year in many respects. We saw the beginning and the end of all-out war in Iraq, equity market uncertainty turned to strength and sub par gross domestic product growth of 1.4% in the first quarter of 2003 grew to an extraordinary 8.2% in the third quarter. Amid the good news, fixed income investments, which had become the asset class of choice during the preceding three-year equity market decline, faced new challenges. During 2003, municipal bond yields rose and fell in reaction to geopolitical events, equity market performance, economic activity and employment figures. By the end of October, long-term municipal revenue bond yields were slightly higher than they were one year earlier, at 5.24% as measured by the Bond Buyer Revenue Bond Index. With many state deficits at record levels, municipalities issued nearly $400 billion in new long-term tax-exempt bonds during the 12-month period ended October 31, 2003. The availability of bonds, together with attractive yield ratios relative to U.S. Treasury issues, made municipal bonds a popular fixed income investment alternative. Throughout the year, our portfolio managers continued to work diligently to deliver on our commitment to provide superior performance within reasonable expectations for risk and return. This included striving to outperform our peers and the market indexes. With that said, remember that the advice and guidance of a skilled financial advisor often can mean the difference between successful and unsuccessful investing. A financial professional can help you choose those investments that will best serve you as you plan for your financial future. Finally, I am proud to premiere a new look to our shareholder communications. Our portfolio manager commentaries have been trimmed and organized in such a way that you can get the information you need at a glance, in plain language. Today's markets are confusing enough. We want to help you put it all in perspective. The report's new size also allows us certain mailing efficiencies. Any cost savings in production or postage are passed on to the Fund and, ultimately, to Fund shareholders. 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, /s/ Terry K. Glenn Terry K. Glenn President and Director MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 3 [LOGO] Merrill Lynch Investment Managers A Discussion With Your Fund's Portfolio Manager In a very volatile period for interest rates, we maintained our focus on enhancing the credit quality of the portfolio while protecting the Fund from net asset value volatility. Describe the market environment relative to municipal bonds during the fiscal year. At the end of October, long-term tax-exempt bond yields were 90% - 95% of comparable U.S. Treasury securities, substantially exceeding their historical average of 85% - 88%. Considering their tax-free status, this made long-term municipal bonds an attractive investment alternative during the past 12 months. Long-term U.S. Treasury bond yields declined throughout most of the first seven months of the fiscal year, while bond prices -- which move in the opposite direction of yields -- rose in response to weak equity markets, concerns about a growing conflict in Iraq and continued sub par U.S. economic growth. The Federal Reserve Board continued to lower short-term interest rates to stimulate business and consumer economic activity. Bond yields reversed course in July and August, rising sharply as economic conditions began to improve and as most analysts agreed the Federal Reserve Board had finished lowering interest rates. In mid-August, U.S. Treasury bond yields reached 5.45%, their highest level during the period, before again moving lower for the remainder of the fiscal year. At the end of the 12-month period, long-term U.S. Treasury bond yields were 5.13%, 15 basis points (.15%) higher than a year earlier. The relatively modest yield increase year-over-year masks the considerable month-to-month volatility in interest rates during the period. Long-term tax-exempt bond yields also rose from year-ago levels, although to a lesser extent than U.S. Treasury bonds. Yield movements were less volatile than those experienced by U.S. Treasury issues, because municipal bond prices typically are less sensitive to short-term economic and geopolitical pressures. By the end of October, long-term municipal revenue bond yields stood at 5.24%, a small increase compared to the previous year. Yields for long-term Aaa-rated tax-exempt bonds (the highest rated) declined 10 basis points during the past year. The decline largely reflected investors' growing demand for high-quality bonds, which provided valuable stability in an uncertain market. The municipal market's outperformance of the U.S. Treasury market was especially impressive given the dramatic increase in new bond issuance during the fiscal year. State and local governments took advantage of historically low interest rates to finance existing infrastructure needs and refinance outstanding high-interest-rate debt. During the past 12 months, municipalities issued nearly $400 billion in new securities, an increase of more than 12% compared to last year's issuance. More recently, however, new municipal bond issuance slowed as tax-exempt bond yields rose, making borrowing more expensive. Less than $90 billion in long-term tax-exempt bonds was underwritten during the period's last three months, a decline of nearly 10% versus the same three months of 2002. This decline in supply helped support the tax-exempt market's recent performance. Describe conditions in the state of California during the period. In July 2003, Standard & Poor's downgraded California's credit rating to BBB, the lowest of any state in the nation. The credit downgrade stemmed from uncertainty about California's financial situation, characterized by a deficit that then exceeded $38 billion. Since that time, the state managed to pass a budget. Unfortunately for California's finances, the budget included record amounts of new borrowing and lacked provisions to significantly cut government spending or increase tax revenues. To close its budget gap, California plans to issue new general obligation debt, quasi-state-backed bonds secured by a legal settlement with the tobacco industry, and "fiscal recovery" bonds to refinance California's high-interest-rate debt. Some of these bond issues, however, are likely to face legal challenges. California's political situation was clarified in October, when Arnold Schwarzenegger won a recall election to succeed Gray Davis as governor. It is, however, unclear whether this election will lead to significant changes in the state's fiscal responsibility or in its financial condition. California general debt obligations offered as much as 75 basis points of additional yield relative to comparable AAA-rated municipal bonds during the period, reflecting investors' concern about the state's credit problems. As the period progressed, that spread narrowed to 35 basis points before widening to 50 basis points late in the period. The more recent wider spreads were prompted by renewed skepticism following the recall and anticipated new bond supply. How did the Fund perform during the period in light of the existing market conditions? For the year ended October 31, 2003, the Common Stock of MuniYield California Insured Fund, Inc. had a net annualized 4 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 yield of 5.76%, based on a year-end per share net asset value of $15.10 and $.870 per share income dividends. Over the same period, the total investment return on the Fund's Common Stock was +5.29%, based on a change in per share net asset value from $15.26 to $15.10, and assuming reinvestment of $.867 per share ordinary income dividends. For the six-month period ended October 31, 2003, the total investment return on the Fund's Common Stock was +.44%, based on a change in per share net asset value from $15.51 to $15.10 and assuming reinvestment of $.438 per share ordinary income dividends. For the six-month period ended October 31, 2003, the Fund's Auction Market Preferred Stock had average yields as follows: .88% for Series A; .74% for Series B; .68% for Series C; .78% for Series D; and .69% for Series E. 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 the Financial Statements included in 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 can vary significantly from total investment return based on changes in the Fund's net asset value. The Fund's total return performance, based on net asset value, trailed that of its comparable Lipper category of California Insured Municipal Debt Funds, which had an average return of +5.5% for the same 12-month period. In terms of yield, we intend to restructure the portfolio to improve our competitive position. We believe this is best accomplished after interest rates rise, which should allow us to create a portfolio with a higher-than-average coupon structure. Until then, we remain focused on protecting the Fund's net asset value by maintaining a defensive market stance with a low duration asset mix. What changes were made to the portfolio during the period? We made few significant changes to the portfolio during the fiscal year. We continued to adopt a defensive portfolio structure, with approximately 85% of the Fund invested in insured California bonds on October 31, 2003 -- consistently above the Fund's mandated limit of 80%. We also raised the average couponing of the Fund's holdings during the period and concentrated assets in parts of the yield curve that we believe offer the best value for the level of interest rate risk taken. As mentioned earlier, we sought to restructure the portfolio to generate higher average coupon payments from the Fund's holdings, but believe this would be most advantageous in a higher-interest-rate environment. In the meantime, we focused on seeking to protect the Fund's net asset value through our defensive approach, which also included keeping the Fund's duration -- its sensitivity to interest rates -- relatively low. Another defensive action was to use interest rate swaps in an effort to cushion the Fund from the negative effects that an interest rate increase would have on bond prices. In terms of leverage, the Fund's borrowing costs remained between .75% - 1.25% during the fiscal year. These attractive funding levels, in combination with a steep tax-exempt yield curve, generated a significant income benefit to the Fund's Common Stock shareholders. Further declines in the Fund's borrowing costs would require significant easing of monetary policy by the Federal Reserve Board. While such action is not expected, neither is an imminent increase in short-term interest rates. We expect short-term borrowing costs to remain near current attractive levels for the coming months. However, should the spread between short-term and long-term interest rates narrow, the benefits of leverage will decline, and as a result, reduce the yield on the Fund's Common 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 portfolio's position at the close of the period? We continued to position the portfolio defensively, keeping its duration shorter than our Lipper group. Our focus is on maintaining the Fund's net asset value, as we anticipate continued interest rate volatility. We believe the Fund's defensive structure should mute some of the price volatility that may result if long-term market rates continue to rise. Walter C. O'Connor Vice President and Portfolio Manager November 11, 2003 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 5 [LOGO] Merrill Lynch Investment Managers Schedule of Investments (in Thousands) S&P Moody's Face Ratings@ Ratings@ Amount Municipal Bonds Value =================================================================================================================================== California--134.0% - ----------------------------------------------------------------------------------------------------------------------------------- AAA Aaa $ 7,000 ABAG Finance Authority for Nonprofit Corporations, California, COP (Children's Hospital Medical Center), 6% due 12/01/2029 (a) $ 7,805 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,985 Arcadia, California, Unified School District, GO, Series B, 6.50% due 7/01/2015 (b) 2,190 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,675 Bakersfield, California, COP, Refunding (Convention Center Expansion Project), 5.80% due 4/01/2017 (g) 4,135 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 Bay Area Government Association, California, Revenue Refunding Bonds (California Redevelopment Agency Pool), Series A, 6% due 12/15/2024 (e) 2,142 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,990 Brentwood, California, Infrastructure Refinancing Authority, Infrastructure Revenue Refunding Bonds, Series A, 5.20% due 9/02/2029 (e) 4,102 ----------------------------------------------------------------------------------------------------------- California Community College Financing Authority, Lease Revenue Bonds, Series A (g): AAA Aaa 3,215 5.95% due 12/01/2022 3,620 AAA Aaa 1,100 6% due 12/01/2029 1,237 ----------------------------------------------------------------------------------------------------------- California Educational Facilities Authority Revenue Bonds: AAA NR* 28,000 (Pepperdine University), Series A, 5.50% due 8/01/2032 (g) 29,607 AAA Aaa 3,400 (University of Redlands), 5% due 6/01/2033 (b) 3,418 NR* A2 5,000 (University of San Diego), Series A, 5.50% due 10/01/2032 5,172 ----------------------------------------------------------------------------------------------------------- AAA NR* 24,170 California Educational Facilities Authority, Student Loan Revenue Bonds (CalEdge Loan Program), AMT, 5.55% due 4/01/2028 (a) 24,935 ----------------------------------------------------------------------------------------------------------- California HFA, Home Mortgage Revenue Bonds, VRDN (j): A1+ VMIG1+ 5,855 AMT, Series B, 1.20% due 8/01/2033 (e) 5,855 A1+ VMIG1+ 9,210 AMT, Series R, 1.15% due 8/01/2023 (a) 9,210 A1 VMIG1+ 13,200 Series F, 1.15% due 2/01/2033 (a) 13,200 ----------------------------------------------------------------------------------------------------------- NR* Aaa 985 California HFA, Revenue Bonds, RIB, AMT, Series 150, 10.12% due 2/01/2029 (g)(i) 1,025 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,750 California Health Facilities Finance Authority Revenue Bonds (Kaiser Permanente), Series A, 5.50% due 6/01/2022 (e) 2,950 ----------------------------------------------------------------------------------------------------------- California Health Facilities Finance Authority Revenue Refunding Bonds, VRDN (j): A1+ VMIG1+ 400 (Adventist Hospital), Series A, 1.08% due 9/01/2028 (g) 400 A1+ VMIG1+ 6,800 (Adventist Hospital), Series B, 1.08% due 9/01/2028 (g) 6,800 A1+ VMIG1+ 1,720 (Adventist Hospital), Series B, 1.12% due 9/01/2028 (g) 1,720 A1+ VMIG1+ 1,000 (Sutter/Catholic Healthcare System), Series B, 1.10% due 7/01/2012 (a) 1,000 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,000 California Infrastructure and Economic Development Bank, Insured Revenue Bonds (Rand Corporation), Series A, 5.50% due 4/01/2032 (a) 3,168 ----------------------------------------------------------------------------------------------------------- BBB+ Baa2 21,000 California Pollution Control Financing Authority, Solid Waste Disposal Revenue Refunding Bonds (Republic Services Inc. Project), AMT, Series C, 5.25% due 6/01/2023 20,937 ----------------------------------------------------------------------------------------------------------- California Rural Home Mortgage Finance Authority, S/F Mortgage Revenue Bonds (Mortgage-Backed Securities Program), AMT: AAA NR* 2,480 Series A, 6.35% due 12/01/2029 (c)(d) 2,615 NR* Aaa 710 Series A-1, 6.90% due 12/01/2024 (c)(f) 750 AAA NR* 1,865 Series B, 6.25% due 12/01/2031 (d) 1,968 ----------------------------------------------------------------------------------------------------------- California State, Department of Veteran Affairs, Home Purpose Revenue Refunding Bonds: AAA Aaa 12,680 Series A, 5.35% due 12/01/2027 (a) 13,051 A Aa2 7,500 Series C, 6.15% due 12/01/2027 7,684 ----------------------------------------------------------------------------------------------------------- BBB+ A3 7,500 California State, Department of Water Resources, Power Supply Revenue Bonds, Series A, 5.75% due 5/01/2017 8,185 Portfolio Abbreviations To simplify the listings of MuniYield California Insured Fund, Inc.'s portfolio holdings in the Schedule of Investments, we have abbreviated the names of many of the securities according to the list at right. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation DRIVERS Derivative Inverse Tax-Exempt Receipts GO General Obligation Bonds HFA Housing Finance Agency RIB Residual Interest Bonds RITR Residual Interest Trust Receipts S/F Single-Family VRDN Variable Rate Demand Notes 6 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Schedule of Investments (continued) (in Thousands) S&P Moody's Face Ratings@ Ratings@ Amount Municipal Bonds Value =================================================================================================================================== California (continued) - ----------------------------------------------------------------------------------------------------------------------------------- California State, GO: AAA Aaa $ 860 6.25% due 10/01/2019 (g) $ 886 BBB A3 3,450 Various Purpose, 5.50% due 11/01/2033 3,500 ----------------------------------------------------------------------------------------------------------- California State, GO, Refunding: AAA NR* 9,935 DRIVERS, AMT, Series 239, 10% due 12/01/2032 (a)(i) 10,595 AAA Aaa 3,000 Series BX, 5.50% due 12/01/2031 (e) 3,064 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,530 California State Public Works Board, Lease Revenue Bonds (Department of Corrections--Tentative Administration), Series A, 5.25% due 3/01/2020 (a) 4,777 ----------------------------------------------------------------------------------------------------------- AAA Aaa 16,675 California State Public Works Board, Lease Revenue Refunding Bonds (Department of Corrections), Series B, 5.625% due 11/01/2016 (g) 18,764 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,375 California State University and Colleges, Housing System Revenue Refunding Bonds, 5.90% due 11/01/2021 (b) 2,625 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,100 California Statewide Communities Development Authority, COP (Kaiser Permanente), 5.30% due 12/01/2015 (e) 4,436 ----------------------------------------------------------------------------------------------------------- A- A3 3,685 California Statewide Communities Development Authority, Health Facility Revenue Bonds (Memorial Health Services), Series A, 6% due 10/01/2023 3,896 ----------------------------------------------------------------------------------------------------------- A+ A1 1,000 California Statewide Communities Development Authority Revenue Bonds (Sutter Health), Series B, 5.50% due 8/15/2028 1,011 ----------------------------------------------------------------------------------------------------------- AAA Aaa 8,900 Central Unified School District, California, COP, 3.50% due 1/01/2035 (a) 9,104 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,600 Ceres, California, Redevelopment Agency, Tax Allocation Bonds (Ceres Redevelopment Project Area Number 1), 5.75% due 11/01/2030 (g) 5,036 ----------------------------------------------------------------------------------------------------------- AAA Aaa 6,000 Chaffey, California, Union High School District, GO, Series C, 5.375% due 5/01/2023 (e) 6,350 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,590 Clovis, California, Public Financing Authority, Water Revenue Refunding Bonds, 5% due 3/01/2028 (a) 4,631 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,540 Coalinga, California, Redevelopment Agency Tax Allocation Bonds, 5.90% due 9/15/2025 (g) 2,811 ----------------------------------------------------------------------------------------------------------- AAA Aaa 12,180 Contra Costa County, California, COP, Refunding (Merrithew Memorial Hospital Project), 5.375% due 11/01/2017 (g) 13,173 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 Coronado, California, Community Development Agency, Tax Allocation Bonds (Coronado Community Development Project), 5.60% due 9/01/2030 (g) 2,150 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,520 El Camino, California, Community College District, GO (Election of 2002), Series A, 2.50% due 8/01/2005 (g) 3,601 ----------------------------------------------------------------------------------------------------------- El Monte, California, City School District, GO, Refunding, Series A (e): AAA Aaa 1,000 6.25% due 5/01/2020 1,164 AAA Aaa 1,500 6.25% due 5/01/2025 1,713 ----------------------------------------------------------------------------------------------------------- El Monte, California, School District, GO, Series B (b): AAA Aaa 3,025 5.375% due 5/01/2022 3,225 AAA Aaa 2,525 5.375% due 5/01/2027 2,654 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,040 Fontana, California, Unified School District, GO, Series C, 6.25% due 5/01/2012 (b) 3,510 ----------------------------------------------------------------------------------------------------------- AAA Aaa 10,755 Fremont, California, Unified School District, Alameda County, GO, Series A, 5.50% due 8/01/2026 (b) 11,482 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,295 Fresno, California, Joint Powers Financing Authority, Lease Revenue Bonds, Series A, 5.75% due 6/01/2026 (e) 4,685 ----------------------------------------------------------------------------------------------------------- BBB Baa2 2,500 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Bonds, Series A-2, 7.90% due 6/01/2042 2,572 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,800 Las Lomitas, California, School District, Election of 2001, GO, 5.50% due 7/01/2022 (e) 4,113 ----------------------------------------------------------------------------------------------------------- NR* Aa3 7,575 Long Beach, California, Harbor Revenue Bonds, RIB, AMT, Series 786-X, 9.42% due 5/15/2024 (i) 7,955 ----------------------------------------------------------------------------------------------------------- Los Angeles, California, Community Redevelopment Agency, Tax Allocation Refunding Bonds (Bunker Hill), Series H (e): AAA Aaa 1,500 6.50% due 12/01/2015 1,536 AAA Aaa 3,500 6.50% due 12/01/2016 3,585 ----------------------------------------------------------------------------------------------------------- AAA Aaa 5,000 Los Angeles, California, Convention and Exhibition Center Authority, Lease Revenue Refunding Bonds, Series A, 2% due 8/15/2006 (a) 5,073 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 7 [LOGO] Merrill Lynch Investment Managers Schedule of Investments (continued) (in Thousands) S&P Moody's Face Ratings@ Ratings@ Amount Municipal Bonds Value =================================================================================================================================== California (continued) - ----------------------------------------------------------------------------------------------------------------------------------- Los Angeles, California, Department of Airports, Airport Revenue Bonds, AMT (b): AAA Aaa $ 710 (Los Angeles International Airport), Series D, 5.625% due 5/15/2005 (h) $ 761 AAA Aaa 290 (Los Angeles International Airport), Series D, 5.625% due 5/15/2012 310 AAA Aaa 2,500 (Ontario International Airport), Series A, 6% due 5/15/2017 2,741 ----------------------------------------------------------------------------------------------------------- Los Angeles, California, Department of Water and Power, Electric Plant Revenue Refunding Bonds (g)(h): AAA Aaa 3,400 5.50% due 2/15/2005 3,623 AAA Aaa 4,000 5.875% due 2/15/2005 4,282 AAA Aaa 8,000 6% due 2/15/2005 8,576 AAA Aaa 7,140 6.125% due 2/15/2005 7,665 ----------------------------------------------------------------------------------------------------------- Los Angeles, California, Harbor Department Revenue Bonds, AMT (g)(i): NR* Aaa 7,365 RIB, Series 349, 11.12% due 11/01/2026 9,121 AAA Aaa 7,000 Trust Receipts, Class R, Series 7, 11.099% due 11/01/2026 8,669 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,165 Los Angeles, California, Water and Power Revenue Refunding Bonds (Power System), Series A-A-2, 5.375% due 7/01/2021 (g) 3,380 ----------------------------------------------------------------------------------------------------------- AAA Aaa 9,825 Los Angeles County, California, Metropolitan Transportation Authority, Sales Tax Revenue Bonds (Proposition C), Second Series A, 5% due 7/01/2005 (a)(h) 10,442 ----------------------------------------------------------------------------------------------------------- AAA Aaa 9,330 Los Angeles County, California, Public Works Financing Authority, Revenue Refunding Bonds (Flood Control District), Series A, 3% due 3/01/2006 (g) 9,677 ----------------------------------------------------------------------------------------------------------- AAA Aaa 5,830 Los Gatos, California, Joint Union High School District, Election of 1998, GO, Series C, 5.375% due 6/01/2022 (e) 6,219 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,000 Menlo Park, California, Community Development Agency, Tax Allocation (Las Pulgas Community Development Project), 5.55% due 6/01/2030 (a) 1,069 ----------------------------------------------------------------------------------------------------------- AAA NR* 2,985 Milpitas, California, Redevelopment Agency, Tax Allocation Refunding Bonds (Redevelopment Project Area Number 1), 2.50% due 9/01/2005 (g) 3,056 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,175 Mount Pleasant, California, Elementary School District, GO, Series B, 6.35% due 12/01/2024 (e) 2,517 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,245 Nevada County, California, COP, Refunding, 5.25% due 10/01/2019 (g) 4,519 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 New Haven, California, Unified School District, GO, Refunding, 5.75% due 8/01/2020 (e) 2,220 ----------------------------------------------------------------------------------------------------------- Newhall, California, School District, GO, Series A (e): AAA Aaa 2,135 6.25% due 5/01/2020 2,486 AAA Aaa 5,715 6.40% due 5/01/2025 6,637 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 Oakland, California, State Building Authority, Lease Revenue Bonds (Elihu M. Harris), Series A, 5.50% due 4/01/2014 (a) 2,234 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,245 Orange County, California, Airport Revenue Refunding Bonds, AMT, 5.625% due 7/01/2012 (g) 1,379 ----------------------------------------------------------------------------------------------------------- AAA Aaa 6,360 Orange County, California, Public Financing Authority, Lease Revenue Refunding Bonds (Juvenile Justice Center Facility), 5.375% due 6/01/2018 (a) 6,953 ----------------------------------------------------------------------------------------------------------- AAA Aaa 16,920 Orange County, California, Recovery COP, Refunding, Series A, 6% due 7/01/2026 (g) 18,927 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,360 Orchard, California, School District, GO, Series A, 6.50% due 8/01/2005 (b)(h) 4,844 ----------------------------------------------------------------------------------------------------------- AAA Aaa 9,645 Oxnard, California, Unified High School District, GO, Refunding, Series A, 6.20% due 8/01/2030 (g) 11,013 ----------------------------------------------------------------------------------------------------------- AAA Aaa 7,500 Pioneers Memorial Hospital District, California, GO, Refunding, 6.50% due 10/01/2024 (a) 8,020 ----------------------------------------------------------------------------------------------------------- AAAr Aaa 10,000 Port Oakland, California, RITR, AMT, Class R, Series 5, 10.164% due 11/01/2012 (b)(i) 11,756 ----------------------------------------------------------------------------------------------------------- AAA Aaa 7,500 Port Oakland, California, Revenue Bonds, AMT, Series K, 5.75% due 11/01/2029 (b) 7,868 ----------------------------------------------------------------------------------------------------------- AAA Aaa 19,035 Port Oakland, California, Revenue Refunding Bonds, AMT, Series L, 5.375% due 11/01/2027 (b) 19,556 ----------------------------------------------------------------------------------------------------------- AAA Aaa 6,000 Riverside, California, Unified School District, Election, GO, Series A, 5.25% due 2/01/2023 (b) 6,277 ----------------------------------------------------------------------------------------------------------- NR* Aaa 2,250 Riverside County, California, Asset Leasing Corporation, Leasehold Revenue Refunding Bonds, RIB, Series 148, 10.07% due 6/01/2016 (g)(i) 2,807 8 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Schedule of Investments (continued) (in Thousands) S&P Moody's Face Ratings@ Ratings@ Amount Municipal Bonds Value =================================================================================================================================== California (continued) - ----------------------------------------------------------------------------------------------------------------------------------- NR* Aaa $ 3,245 San Bernardino County, California, S/F Home Mortgage Revenue Refunding Bonds, AMT, Series A-1, 6.25% due 12/01/2031 (d) $ 3,372 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,875 San Diego, California, Community College District, GO, Refunding (Election of 2002), Series A, 2.50% due 5/01/2007 (e) 2,947 ----------------------------------------------------------------------------------------------------------- AAA Aaa 4,865 San Diego, California, Unified School District, GO (Election 1998), Series E, 5% due 7/01/2028 (e) 4,909 ----------------------------------------------------------------------------------------------------------- San Diego County, California, COP: AAA Aaa 1,000 (North County Regional Center Expansion), 5.25% due 11/15/2019 (a) 1,065 AAA Aaa 3,570 (Salk Institute for Bio Studies), 5.75% due 7/01/2022 (g) 3,920 AAA Aaa 5,200 (Salk Institute for Bio Studies), 5.75% due 7/01/2031 (g) 5,657 ----------------------------------------------------------------------------------------------------------- San Francisco, California, City and County Airport Commission, International Airport Revenue Bonds, Second Series: AAA Aaa 3,500 AMT, Issue 5, 6.50% due 5/01/2019 (b) 3,660 AAA Aaa 3,000 AMT, Issue 6, 6.50% due 5/01/2018 (a) 3,137 AAA Aaa 2,000 AMT, Issue 6, 6.60% due 5/01/2020 (a) 2,092 AAA Aaa 8,500 AMT, Issue 11, 6.25% due 5/01/2005 (b)(h) 9,193 AAA Aaa 3,000 Issue 12-B, 5.625% due 5/01/2021 (b) 3,280 AAA Aaa 8,015 Issue 26B, 5% due 5/01/2026 (b) 8,054 ----------------------------------------------------------------------------------------------------------- San Francisco, California, City and County Airports Commission, International Airport Revenue Refunding Bonds, Second Series 28B (g): AAA Aaa 3,000 5.25% due 5/01/2023 3,129 AAA Aaa 6,455 5.25% due 5/01/2024 6,701 ----------------------------------------------------------------------------------------------------------- San Francisco, California, City and County Airports Commission, International Airport, Special Facilities Lease Revenue Bonds (SFO Fuel Company LLC), AMT, Series A (e): AAA Aaa 1,000 6.10% due 1/01/2020 1,115 AAA Aaa 1,000 6.125% due 1/01/2027 1,109 ----------------------------------------------------------------------------------------------------------- AAA Aaa 20,160 San Francisco, California, City and County Public Utilities Commission, Clean Water Revenue Refunding Bonds, Series A, 3% due 10/01/2007 (g) 21,040 ----------------------------------------------------------------------------------------------------------- San Francisco, California, City and County Redevelopment Agency, Lease Revenue Refunding Bonds (George R. Moscone Convention Center)(e): AAA Aaa 2,800 6.75% due 7/01/2015 2,957 AAA Aaa 1,200 6.80% due 7/01/2019 1,267 AAA Aaa 5,110 6.75% due 7/01/2024 5,395 ----------------------------------------------------------------------------------------------------------- San Francisco, California, Community College District, GO, Refunding, Series A (b): NR* Aaa 1,735 5.375% due 6/15/2019 1,880 NR* Aaa 1,730 5.375% due 6/15/2020 1,861 NR* Aaa 1,925 5.375% due 6/15/2021 2,056 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 San Francisco, California, State Building Authority, Lease Revenue Bonds (San Francisco Civic Center Complex), Series A, 5.25% due 12/01/2016 (a) 2,174 ----------------------------------------------------------------------------------------------------------- NR* Aaa 3,650 San Jose, California, Redevelopment Agency, Tax Allocation Bonds, RIB, AMT Series 149, 10.32% due 8/01/2027 (g)(i) 4,139 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,000 Santa Ana, California, Community Redevelopment Agency Tax Allocation Refunding Bonds (South Main Street Redevelopment Project), Series B, 2.50% due 9/01/2006 (b) 1,028 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,595 Santa Clara, California, Redevelopment Agency, Tax Allocation Bonds (Bayshore North Project), Series A, 5.25% due 6/01/2019 (a) 2,760 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,000 Santa Clara County, California, Financing Authority, Lease Revenue Bonds (VMC Facility Replacement Project), Series A, 7.75% due 11/15/2011 (a) 2,614 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,100 Santa Clara Valley, California, Water District, Water Utility System Revenue Bonds, Series A, 5.125% due 6/01/2031 (b) 1,115 ----------------------------------------------------------------------------------------------------------- AAA Aaa 2,150 Santa Clarita, California, Community College District, COP (College of Canyons Improvement Project), 5.125% due 8/01/2031 (g) 2,190 ----------------------------------------------------------------------------------------------------------- AAA Aaa 3,000 Santa Rosa, California, High School District, GO, 5.375% due 8/01/2026 (e) 3,146 ----------------------------------------------------------------------------------------------------------- AAA Aaa 1,000 Southeast Resource Recovery Facilities Authority, California, Lease Revenue Refunding Bonds, Series A, 4% due 12/01/2005 (a) 1,056 ----------------------------------------------------------------------------------------------------------- AAA NR* 1,055 Stockton, California, Public Financing Revenue Refunding Bonds, Series A, 5.875% due 9/02/2016 (e) 1,110 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 9 [LOGO] Merrill Lynch Investment Managers Schedule of Investments (concluded) (in Thousands) S&P Moody's Face Ratings@ Ratings@ Amount Municipal Bonds Value =================================================================================================================================== California (concluded) - ----------------------------------------------------------------------------------------------------------------------------------- AAA Aaa $ 1,500 Tehachapi, California, COP, Refunding (Installment Sale), 5.75% due 11/01/2016 (e) $ 1,704 --------------------------------------------------------------------------------------------------------- AAA Aaa 7,155 Turlock, California, Public Financing Authority, Sewer Revenue Bonds, Series A, 5% due 9/15/2033 (b) 7,193 --------------------------------------------------------------------------------------------------------- AAA Aaa 4,790 University of California Revenue Bonds, Series O, 5.125% due 9/01/2031 (b) 4,873 --------------------------------------------------------------------------------------------------------- AAA Aaa 6,130 Vacaville, California, Unified School District, GO (Election of 2001), 5.25% due 8/01/2028 (e) 6,362 --------------------------------------------------------------------------------------------------------- Ventura County, California, Public Financing Authority II, COP (e): AAA Aaa 1,225 2.50% due 8/15/2005 1,253 AAA Aaa 1,135 2.50% due 8/15/2006 1,166 --------------------------------------------------------------------------------------------------------- AAA Aaa 2,185 Walnut, California, Public Financing Authority, Tax Allocation Revenue Bonds (Walnut Improvement Project), 5.375% due 9/01/2021 (a) 2,325 --------------------------------------------------------------------------------------------------------- AAA NR* 7,190 West Contra Costa, California, Unified School District, GO, Series B, 5% due 8/01/2032 (e) 7,229 =================================================================================================================================== Puerto Rico--7.8% - ----------------------------------------------------------------------------------------------------------------------------------- AAAr Aaa 4,750 Puerto Rico Commonwealth, GO, Refunding, RITR, Class R, Series 3, 10.097% due 7/01/2016 (g)(i) 6,232 --------------------------------------------------------------------------------------------------------- NR* Aaa 10,000 Puerto Rico Municipal Finance Agency, GO, RIB, Series 225, 10.17% due 8/01/2012 (e)(i) 12,780 --------------------------------------------------------------------------------------------------------- BBB+ Baa3 20,000 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.75% due 8/01/2030 21,307 --------------------------------------------------------------------------------------------------------- Total Municipal Bonds (Cost--$700, 817)--141.8% 735,714 =================================================================================================================================== Shares Held Short-Term Securities =================================================================================================================================== 16 CMA California Municipal Money Fund++ 16 --------------------------------------------------------------------------------------------------------- Total Short-Term Securities (Cost--$16)--0.0% 16 =================================================================================================================================== Total Investments (Cost--$700,833)--141.8% 735,730 Unrealized Appreciation on Forward Interest Swaps**--0.1% 756 Other Assets Less Liabilities--2.4% 12,332 Preferred Stock, at Redemption Value--(44.3%) (230,032) --------- Net Assets Applicable to Common Stock--100.0% $ 518,786 ========= (a) AMBAC Insured. (b) FGIC Insured. (c) FHLMC Collateralized. (d) FNMA/GNMA Collateralized. (e) FSA Insured. (f) GNMA Collateralized. (g) MBIA Insured. (h) Prerefunded. (i) The interest rate is subject to change periodically and inversely based upon prevailing market rates. The interest rate shown is the rate in effect at October 31, 2003. (j) The interest rate is subject to change periodically based upon prevailing market rates. The interest rate shown is the rate in effect at October 31, 2003. * Not Rated. ** Forward interest rate swaps entered into as of October 31, 2003 were as follows: (in Thousands) -------------------------------------------------------------------------- Notional Unrealized Amount Appreciation -------------------------------------------------------------------------- Receive a variable rate equal to 7-day Bond Market Association rate at quarterly reset date and pay a fixed rate equal to 4.129%. $37,000 $ 756 Broker, Morgan Stanley Capital Services, Inc. Expires January 2, 2024 -------------------------------------------------------------------------- + Highest short-term rating by Moody's Investors Service, Inc. ++ Investments in companies considered to be an affiliate of the Fund (such companies are defined as "Affiliated Companies" in Section 2 (a)(3) of the Investment Company Act of 1940) are as follows: (in Thousands) -------------------------------------------------------------------------- Net Dividend Affiliate Activity Income -------------------------------------------------------------------------- CMA California Municipal Money Fund 16 $17 -------------------------------------------------------------------------- @ Ratings of issues shown are unaudited. See Notes to Financial Statements. 10 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Statement of Net Assets As of October 31, 2003 =================================================================================================================================== Assets - ----------------------------------------------------------------------------------------------------------------------------------- Investments, at value (identified cost--$700,833,363) ....................... $ 735,730,333 Cash ........................................................................ 182,272 Unrealized appreciation on forward interest rate swaps ...................... 756,132 Receivables: Interest ................................................................. $ 13,469,894 Securities sold .......................................................... 6,935,112 20,405,006 ------------- Prepaid expenses and other assets ........................................... 66,726 ------------- Total assets ................................................................ 757,140,469 ------------- =================================================================================================================================== Liabilities - ----------------------------------------------------------------------------------------------------------------------------------- Payables: Securities purchased ..................................................... 7,597,837 Investment adviser ....................................................... 357,501 Dividends to Common Stock shareholders ................................... 298,205 Other affiliates ......................................................... 5,397 8,258,940 ------------- Accrued expenses ............................................................ 63,967 ------------- Total liabilities ........................................................... 8,322,907 ------------- =================================================================================================================================== Preferred Stock - ----------------------------------------------------------------------------------------------------------------------------------- Preferred Stock, at redemption value, par value $.10 per share (1,800 Series A Shares, 1,800 Series B Shares and 1,600 Series C Shares, 2,000 Series D Shares and 2,000 Series E Shares of AMPS* issued and outstanding at $25,000 per share liquidation preference) .............. 230,031,752 ------------- =================================================================================================================================== Net Assets Applicable to Common Stock - ----------------------------------------------------------------------------------------------------------------------------------- Net assets applicable to Common Stock ....................................... $ 518,785,810 ============= =================================================================================================================================== Analysis of Net Assets Applicable to Common Stock - ----------------------------------------------------------------------------------------------------------------------------------- Common Stock, par value $.10 per share (34,361,200 shares issued and outstanding) .............................................................. $ 3,436,120 Paid-in capital in excess of par ............................................ 494,852,784 Undistributed investment income--net ........................................ $ 6,480,413 Accumulated realized capital losses on investments--net ..................... (21,636,609) Unrealized appreciation on investments--net ................................. 35,653,102 ------------- Total accumulated earnings--net ............................................. 20,496,906 ------------- Total--Equivalent to $15.10 net asset value per share of Common Stock (market price--$13.82) .................................................... $ 518,785,810 ============= * Auction Market Preferred Stock. See Notes to Financial Statements. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 11 [LOGO] Merrill Lynch Investment Managers Statement of Operations For the Year Ended October 31, 2003 =================================================================================================================================== Investment Income - ----------------------------------------------------------------------------------------------------------------------------------- Interest .................................................................... $ 37,666,984 Dividends from affiliates ................................................... 17,390 ------------- Total income ................................................................ 37,684,374 ------------- =================================================================================================================================== Expenses - ----------------------------------------------------------------------------------------------------------------------------------- Investment advisory fees .................................................... $ 3,794,973 Commission fees ............................................................. 584,936 Accounting services ......................................................... 232,642 Transfer agent fees ......................................................... 87,445 Professional fees ........................................................... 66,828 Custodian fees .............................................................. 40,337 Directors' fees and expenses ................................................ 37,237 Printing and shareholder reports ............................................ 34,767 Listing fees ................................................................ 31,485 Pricing fees ................................................................ 27,838 Other ....................................................................... 41,310 ------------- Total expenses before reimbursement ......................................... 4,979,798 Reimbursement of expenses ................................................... (9,948) ------------- Total expenses after reimbursement .......................................... 4,969,850 ------------- Investment income--net ...................................................... 32,714,524 ------------- =================================================================================================================================== Realized & Unrealized Loss on Investments--Net - ----------------------------------------------------------------------------------------------------------------------------------- Realized loss on investments--net ........................................... (598,996) Change in unrealized appreciation on investments--net ....................... (6,051,332) ------------- Total realized and unrealized loss on investments--net ...................... (6,650,328) ------------- =================================================================================================================================== Dividends to Preferred Stock Shareholders - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net ...................................................... (1,972,130) ------------- Net Increase in Net Assets Resulting from Operations ........................ $ 24,092,066 ============= See Notes to Financial Statements. 12 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Statements of Changes in Net Assets For the Year Ended October 31, ------------------------------- Increase (Decrease) in Net Assets: 2003 2002 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net ...................................................... $ 32,714,524 $ 29,318,898 Realized gain (loss) on investments--net .................................... (598,996) 1,662,413 Change in unrealized appreciation on investments--net ....................... (6,051,332) (2,673,126) Dividends and distributions to Preferred Stock shareholders ................. (1,972,130) (2,578,760) ------------------------------- Net increase in net assets resulting from operations ........................ 24,092,066 25,729,425 ------------------------------- =================================================================================================================================== Dividends & Distributions to Common Stock Shareholders - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net ...................................................... (29,791,160) (23,314,427) Realized gain on investments--net ........................................... -- (112,798) ------------------------------- Net decrease in net assets resulting from dividends and distributions to Common Stock shareholders ................................................. (29,791,160) (23,427,225) ------------------------------- =================================================================================================================================== Common Stock Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Proceeds from issuance of Common Stock resulting from reorganization ........ -- 238,629,327 ------------------------------- =================================================================================================================================== Net Assets Applicable to Common Stock - ----------------------------------------------------------------------------------------------------------------------------------- Total increase (decrease) in net assets applicable to Common Stock .......... (5,699,094) 240,931,527 Beginning of year ........................................................... 524,484,904 283,553,377 ------------------------------- End of year* ................................................................ $ 518,785,810 $ 524,484,904 =============================== * Undistributed investment income--net ................................... $ 6,480,413 $ 5,529,179 =============================== See Notes to Financial Statements. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 13 [LOGO] Merrill Lynch Investment Managers Financial Highlights The following per share data and ratios have been derived from information provided in the financial statements. For the Year Ended October 31, ------------------------------------------------------- Increase (Decrease) in Net Asset Value: 2003 2002 2001+ 2000+ 1999+ ================================================================================================================================== Per Share Operating Performance - ---------------------------------------------------------------------------------------------------------------------------------- Net asset value, beginning of year ........................... $ 15.26 $ 15.44 $ 14.24 $ 13.14 $ 16.25 ------------------------------------------------------- Investment income--net ....................................... .95@@ .95 1.00 1.02 1.03 Realized and unrealized gain (loss) on investments--net ...... (.18) (.22) 1.21 1.14 (2.37) Dividends and distributions to Preferred Stock shareholders: Investment income--net .................................... (.06) (.09) (.20) (.25) (.15) Realized gain on investments--net ......................... -- --@ -- -- (.06) In excess of realized gain on investments--net ............ -- -- --@ -- (.05) ------------------------------------------------------- Total from investment operations ............................. .71 .64 2.01 1.91 (1.60) ------------------------------------------------------- Less dividends and distributions to Common Stock shareholders: Investment income--net .................................... (.87) (.81) (.81) (.81) (.87) Realized gain on investments--net ......................... -- (.01) -- -- (.33) In excess of realized gain on investments--net ............ -- -- --@ -- (.31) ------------------------------------------------------- Total dividends and distributions to Common Stock shareholders (.87) (.82) (.81) (.81) (1.51) ------------------------------------------------------- Net asset value, end of year ................................. $ 15.10 $ 15.26 $ 15.44 $ 14.24 $ 13.14 ======================================================= Market price per share, end of year .......................... $ 13.82 $ 13.68 $ 14.46 $ 13.625 $12.6875 ======================================================= ================================================================================================================================== Total Investment Return* - ---------------------------------------------------------------------------------------------------------------------------------- Based on market price per share .............................. 7.50% .20% 12.33% 14.23% (12.83%) ======================================================= Based on net asset value per share ........................... 5.29% 4.68% 14.76% 15.28% (10.76%) ======================================================= ================================================================================================================================== Ratios Based on Average Net Assets of Common Stock - ---------------------------------------------------------------------------------------------------------------------------------- Total expenses, net of reimbursement and excluding reorganization expenses** .................................. .94% .96% 1.06% 1.04% 1.02% ======================================================= Total expenses, excluding reorganization expenses** .......... .94% .96% 1.06% 1.04% 1.02% ======================================================= Total expenses** ............................................. .94% 1.00% 1.06% 1.04% 1.02% ======================================================= Total investment income--net** ............................... 6.20% 6.38% 6.74% 7.43% 6.86% ======================================================= Amount of dividends to Preferred Stock shareholders .......... .37% .56% 1.36% 1.81% .98% ======================================================= Investment income--net, to Common Stock shareholders ......... 5.83% 5.82% 5.38% 5.62% 5.88% ======================================================= ================================================================================================================================== Ratios Based on Average Net Assets of Common and Preferred Stock** - ---------------------------------------------------------------------------------------------------------------------------------- Total expenses, net of reimbursement and excluding reorganization expenses .................................... .65% .67% .72% .68% .69% ======================================================= Total expenses, excluding reorganization expenses ............ .66% .67% .72% .68% .69% ======================================================= Total expenses ............................................... .66% .70% .72% .68% .69% ======================================================= Total investment income--net ................................. 4.31% 4.42% 4.57% 4.88% 4.65% ======================================================= ================================================================================================================================== Ratios Based on Average Net Assets of Preferred Stock - ---------------------------------------------------------------------------------------------------------------------------------- Dividends to Preferred Stock shareholders .................... .85% 1.25% 2.86% 3.46% 2.08% ======================================================= 14 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Financial Highlights (concluded) The following per share data and ratios have been derived from information provided in the financial statements. For the Year Ended October 31, ---------------------------------------------------- Increase (Decrease) in Net Asset Value: 2003 2002 2001+ 2000+ 1999+ ================================================================================================================================== Supplemental Data - ---------------------------------------------------------------------------------------------------------------------------------- Net assets applicable to Common Stock, end of year (in thousands) $518,786 $524,485 $283,553 $261,474 $240,973 ==================================================== Preferred Stock outstanding, end of year (in thousands) ......... $230,000 $230,000 $130,000 $130,000 $130,000 ==================================================== Portfolio turnover .............................................. 52.17% 77.13% 59.36% 78.52% 86.51% ==================================================== ================================================================================================================================== Leverage - ---------------------------------------------------------------------------------------------------------------------------------- Asset coverage per $1,000 ....................................... $ 3,256 $ 3,280 $ 3,181 $ 3,011 $ 2,854 ==================================================== ================================================================================================================================== Dividends Per Share on Preferred Stock Outstanding++ - ---------------------------------------------------------------------------------------------------------------------------------- Series A--Investment income--net ................................ $ 216 $ 359 $ 758 $ 879 $ 493 ==================================================== Series B--Investment income--net ................................ $ 212 $ 324 $ 700 $ 838 $ 555 ==================================================== Series C--Investment income--net ................................ $ 204 $ 320 $ 683 $ 884 $ 503 ==================================================== Series D--Investment income--net ................................ $ 242 $ 203 -- -- -- ==================================================== Series E--Investment income--net ................................ $ 196 $ 201 -- -- -- ==================================================== * 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. + Certain prior year amounts have been reclassified to conform to current year presentation. ++ The Fund's Preferred Stock was issued on November 30, 1992 (Series A and B), January 27, 1997 (Series C) and February 4, 2002 (Series D and E). @ Amount is less than $(.01) per share. @@ Based on average shares outstanding. See Notes to Financial Statements. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 15 [LOGO] Merrill Lynch Investment Managers Notes to Financial Statements 1. Significant Accounting Policies: MuniYield California Insured Fund, Inc. (the "Fund") is registered under the Investment Company Act of 1940, as amended, as a non-diversified, closed-end management investment company. The Fund's financial statements are prepared in conformity with accounting principles generally accepted in the United States of America, which may require the use of management accruals and estimates. The Fund determines and makes available for publication the net asset value of its Common Stock on a weekly basis. The Fund's Common Stock is listed on the New York Stock Exchange under the symbol MCA. The following is a summary of significant accounting policies followed by the Fund. (a) Valuation of investments -- Municipal bonds are traded primarily in the over-the-counter markets and are valued at the last available bid price in the over-the-counter market or on the basis of yield equivalents as obtained by the Fund's pricing service from one or more dealers that make markets in such securities. 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 over-the-counter 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 from the counterparty. Short-term securities with a remaining maturity of sixty days or less are valued at amortized cost, which approximates market value. Securities and 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 Fund, including valuations furnished by a pricing service retained by the Fund, which may utilize a matrix system for valuations. The procedures of the pricing service and its valuations are reviewed by the officers of the Fund under the general supervision of the Board of Directors. b) Derivative financial instruments -- The Fund may engage in various portfolio investment strategies both to increase the return of the Fund and to hedge, or protect, its 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. o Financial futures contracts -- The 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. o Options -- The Fund is authorized to write covered call options and purchase 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). 16 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Notes to Financial Statements (continued) Written and purchased options are non-income producing investments. o Forward interest rate swaps -- The 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 the 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 fund amortizes 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. 2. Investment Advisory Agreement and Transactions with Affiliates: The 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 the Fund's portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Fund. For such services, the Fund pays a monthly fee at an annual rate of .50% of the Fund's average weekly net assets, including proceeds from the issuance of Preferred Stock. For the year ended October 31, 2003, FAM reimbursed the Fund in the amount of $9,948. Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S") received $650 in commissions on the execution of portfolio security transactions for the Fund for the year ended October 31, 2003. For the year ended October 31, 2003, the Fund reimbursed FAM $17,831 for certain accounting services. Certain officers and/or directors of the Fund 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 year ended October 31, 2003 were $389,731,959 and $368,489,107, respectively. Net realized gains (losses) for the year ended October 31, 2003 and net unrealized gains as of October 31, 2003 were as follows: - -------------------------------------------------------------------------------- Realized Unrealized Gains (Losses) Gains - -------------------------------------------------------------------------------- Long-term investments ................... $ 3,839,881 $34,896,970 Financial futures contracts ............. (5,112,277) -- Forward interest rate swaps ............. 673,400 756,132 ------------------------------- Total ................................... $ (598,996) $35,653,102 =============================== MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 17 [LOGO] Merrill Lynch Investment Managers Notes to Financial Statements (continued) As of October 31, 2003, net unrealized appreciation for Federal income tax purposes aggregated $34,889,695, of which $35,624,150 related to appreciated securities and $734,455 related to depreciated securities. The aggregate cost of investments at October 31, 2003 for Federal income tax purposes was $700,840,638. 4. Stock Transactions: The 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 stock without approval of holders of Common Stock. Common Stock Shares issued and outstanding during the year ended October 31, 2003 remained constant and for the year ended October 31, 2002 increased by 16,002,080 as a result of issuance of Common Stock from a reorganization. Preferred Stock Auction Market Preferred Stock ("AMPS") 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 October 31, 2003 were as follows: Series A, .73%; Series B, .76%; Series C, .75%; Series D, .74%; and Series E, ..80%. Shares issued and outstanding during the year ended October 31, 2003, remained constant and during the year ended October 31, 2002, increased by 4,000 as a result of issuance of Preferred Stock from a reorganization. The 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 year ended October 31, 2003 Merrill Lynch, Pierce, Fenner & Smith Incorporated, an affiliate of FAM, earned $152,364 as commissions. 5. Distributions to Shareholders: The Fund paid a tax-exempt income dividend to holders of Common Stock in the amount of $.073000 per share on November 26, 2003 to shareholders of record on November 14, 2003. 18 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Notes to Financial Statements (concluded) The tax character of distributions paid during the fiscal years ended October 31, 2003 and October 31, 2002 was as follows: - -------------------------------------------------------------------------------- 10/31/2003 10/31/2002 - -------------------------------------------------------------------------------- Distributions paid from: Tax-exempt income .................... $31,763,290 $25,864,643 Ordinary income ...................... -- 141,342 ------------------------------- Total distributions .................... $31,763,290 $26,005,985 =============================== As of October 31, 2003, the components of accumulated earnings on a tax basis were as follows: - ----------------------------------------------------------------------------- Undistributed tax-exempt income--net .................... $ 6,462,631 Undistributed long-term capital gains--net .............. -- ------------ Total undistributed earnings--net ....................... 6,462,631 Capital loss carryforward ............................... (12,682,535)* Unrealized gains--net ................................... 26,716,810** ------------ Total accumulated earnings--net ......................... $ 20,496,906 ============ * On October 31, 2003, the Fund had a net capital loss carryforward of $12,682,535, of which $2,049,123 expires in 2007, $5,722,654 expires in 2008, $9,668 expires in 2009 and $4,901,090 expires in 2011. This amount will be available to offset like amounts of any future taxable gains. ** The difference between book-basis and tax-basis net unrealized gains is attributable primarily to the tax deferral of losses on wash sales, the tax deferral of losses on straddles and the difference between book and tax amortization methods for premiums and discounts on fixed income securities. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 19 [LOGO] Merrill Lynch Investment Managers Independent Auditors' Report To the Shareholders and Board of Directors of MuniYield California Insured Fund, Inc.: We have audited the accompanying statement of net assets, including the schedule of investments, of MuniYield California Insured Fund, Inc. as of October 31, 2003, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included confirmation of securities owned as of October 31, 2003, by correspondence with the custodian and brokers; where replies were not received from brokers, we performed other auditing procedures. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MuniYield California Insured Fund, Inc. as of October 31, 2003, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. Deloitte & Touche LLP Princeton, New Jersey December 17, 2003 20 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Dividend Policy The Fund's dividend policy is to distribute all or a portion of its net investment income to its shareholders on a monthly basis. In order to provide shareholders with a more stable level of dividend distributions, the Fund may at times pay out less than the entire amount of net investment income earned in any particular month and may at times in any particular month pay out such accumulated but undistributed income in addition to net investment income earned in that month. As a result, the dividends paid by the Fund for any particular month may be more or less than the amount of net investment income earned by the Fund during such month. The Fund's current accumulated but undistributed net investment income, if any, is disclosed in the Statement of Net Assets, which comprises part of the financial information included in this report. Quality Profile (unaudited) The quality ratings of securities in the Fund as of October 31, 2003 were as follows: - -------------------------------------------------------------------------------- Percent of Total S&P Rating/Moody's Rating Investments - -------------------------------------------------------------------------------- AAA/Aaa ................................................ 83.6% AA/Aa .................................................. 2.1 A/A .................................................... 3.0 BBB/Ba ................................................. 6.1 Other+ ................................................. 5.2 - -------------------------------------------------------------------------------- + Temporary investments in short-term variable rate municipal securities. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 21 [LOGO] Merrill Lynch Investment Managers Automatic Dividend Reinvestment Plan The following description of the Fund's Automatic Dividend Reinvestment Plan (the "Plan") is sent to you annually as required by Federal securities laws. Pursuant to the Fund's Plan, unless a holder of Common Stock otherwise elects, all dividend and capital gains distributions will be automatically reinvested by EquiServe (the "Plan Agent"), as agent for shareholders in administering the Plan, in additional shares of Common Stock of the Fund. Holders of Common Stock who elect not to participate in the Plan will receive all distributions in cash paid by check mailed directly to the shareholder of record (or, if the shares are held in street or other nominee name then to such nominee) by EquiServe, as dividend paying agent. Such participants may elect not to participate in the Plan and to receive all distributions of dividends and capital gains in cash by sending written instructions to EquiServe, as dividend paying agent, at the address set forth below. Participation in the Plan is completely voluntary and may be terminated or resumed at any time without penalty by written notice if received by the Plan Agent not less than ten days prior to any dividend record date; otherwise such termination will be effective with respect to any subsequently declared dividend or distribution. Whenever the Fund declares an income dividend or capital gains distribution (collectively referred to as "dividends") payable either in shares or in cash, non-participants in the Plan will receive cash and participants in the Plan will receive the equivalent in shares of Common Stock. The shares will be acquired by the Plan Agent for the participant's account, depending upon the circumstances described below, either (i) through receipt of additional unissued but authorized shares of Common Stock from the Fund ("newly issued shares") or (ii) by purchase of outstanding shares of Common Stock on the open market ("open-market purchases") on the New York Stock Exchange or elsewhere. If on the payment date for the dividend, the net asset value per share of the Common Stock is equal to or less than the market price per share of the Common Stock plus estimated brokerage commissions (such conditions being referred to herein as "market premium"), the Plan Agent will invest the dividend amount in newly issued shares on behalf of the participant. The number of newly issued shares of Common Stock to be credited to the participant's account will be determined by dividing the dollar amount of the dividend by the net asset value per share on the date the shares are issued, provided that the maximum discount from the then current market price per share on the date of issuance may not exceed 5%. If on the dividend payment date the net asset value per share is greater than the market value (such condition being referred to herein as "market discount"), the Plan Agent will invest the dividend amount in shares acquired on behalf of the participant in open-market purchases. In the event of a market discount on the dividend payment date, the Plan Agent will have until the last business day before the next date on which the shares trade on an "ex-dividend" basis or in no event more than 30 days after the dividend payment date (the "last purchase date") to invest the dividend amount in shares acquired in open-market purchases. It is contemplated that the Fund will pay monthly income dividends. Therefore, the period during which open-market purchases can be made will exist only from the payment date on the dividend through the date before the next "ex-dividend" date, which typically will be approximately ten days. If, before the Plan Agent has completed its open-market purchases, the market price of a share of Common Stock exceeds the net asset value per share, the average per share purchase price paid by the Plan Agent may exceed the net asset value of the Fund's shares, resulting in the acquisitions of fewer shares than if the dividend had been paid in newly issued shares on the dividend payment date. Because of the foregoing difficulty with respect to open-market purchases, the Plan provides that if the Plan Agent is unable to invest the full dividend amount in open-market purchases during the purchase period or if the market discount shifts to a market premium during the purchase period, the Plan Agent will cease making open-market purchases and will invest the uninvested portion of the dividend amount in newly issued shares at the close of business on the last purchase date determined by dividing the uninvested portion of the dividend by the net asset value per share. The Plan Agent maintains all shareholders' accounts in the Plan and furnishes written confirmation of all transactions in the account, including information needed by shareholders for tax records. Shares in the account of each Plan participant will be held by the Plan Agent in non-certificated form in the name of the participant, and each shareholder's proxy will include those shares purchased or received pursuant to the Plan. The Plan Agent will forward all proxy solicitation materials to participants and vote proxies for shares held pursuant to the Plan in accordance with the instructions of the participants. In the case of shareholders such as banks, brokers or nominees which hold shares of others who are the beneficial owners, the Plan Agent will administer the Plan on the basis of the number of shares certified from time to time by the record shareholders 22 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Automatic Dividend Reinvestment Plan (concluded) as representing the total amount registered in the record shareholder's name and held for the account of beneficial owners who are to participate in the Plan. There will be no brokerage charges with respect to shares issued directly by the Fund as a result of dividends or capital gains distributions payable either in shares or in cash. However, each participant will pay a pro rata share of brokerage commissions incurred with respect to the Plan Agent's open-market purchases in connection with the reinvestment of dividends. The automatic reinvestment of dividends and distributions will not relieve participants of any Federal, state or local income tax that may be payable (or required to be withheld) on such dividends. Shareholders participating in the Plan may receive benefits not available to shareholders not participating in the Plan. If the market price plus commissions of the Fund's shares is above the net asset value, participants in the Plan will receive shares of the Fund at less than they could otherwise purchase them and will have shares with a cash value greater than the value of any cash distribution they would have received on their shares. If the market price plus commissions is below the net asset value, participants will receive distributions in shares with a net asset value greater than the value of any cash distribution they would have received on their shares. However, there may be insufficient shares available in the market to make distributions in shares at prices below the net asset value. Also, since the Fund does not redeem shares, the price on resale may be more or less than the net asset value. The value of shares acquired pursuant to the Plan will generally be excluded from gross income to the extent that the cash amount reinvested would be excluded from gross income. If, when the Fund's shares are trading at a premium over net asset value, the Fund issues shares pursuant to the Plan that have a greater fair market value than the amount of cash reinvested, it is possible that all or a portion of such discount (which may not exceed 5% of the fair market value of the Fund's shares) could be viewed as a taxable distribution. If the discount is viewed as a taxable distribution, it is also possible that the taxable character of this discount would be allocable to all the shareholders, including shareholders who do not participate in the Plan. Thus, shareholders who do not participate in the Plan might be required to report as ordinary income a portion of their distributions equal to their allocable share of the discount. Experience under the Plan may indicate that changes are desirable. Accordingly, the Fund reserves the right to amend or terminate the Plan. There is no direct service charge to participants in the Plan; however, the Fund reserves the right to amend the Plan to include a service charge payable by the participants. All correspondence concerning the Plan should be directed to the Plan Agent at EquiServe, P.O. Box 43010, Providence, RI 02940-3010, Telephone: 800-426-5523. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 23 [LOGO] Merrill Lynch Investment Managers Officers and Directors (unaudited) Number of Portfolios in Other Public Position(s) Length Fund Complex Directorships Held of Time Overseen by Held by Name Address & Age with Fund Served Principal Occupation(s) During Past 5 Years Director Director ==================================================================================================================================== Interested Director - ------------------------------------------------------------------------------------------------------------------------------------ Terry K. P.O. Box 9011 President 1999 to President and Chairman of Merrill Lynch Investment 124 Funds None Glenn* Princeton, NJ and present Managers, L.P. ("MLIM")/Fund Asset Management, 163 Portfolios 08543-9011 Director and L.P. ("FAM")--Advised Funds since 1999; Chairman Age: 63 1992 to (Americas Region) of MLIM from 2000 to 2002; present Executive Vice President of FAM and MLIM (which terms as used herein include their corporate predecessors) from 1983 to 2002; President of FAM Distributors, Inc. ("FAMD") from 1986 to 2002 and Director thereof from 1991 to 2002; Executive Vice President and Director of Princeton Services, Inc. ("Princeton Services") from 1993 to 2002; President of Princeton Administrators, L.P. from 1989 to 2002; Director of Financial Data Services, Inc. since 1985. ------------------------------------------------------------------------------------------------------------------------ * Mr. Glenn is a director, trustee or member of an advisory board of certain other investment companies for which FAM or MLIM acts as investment adviser. Mr. Glenn is an "interested person," as described in the Investment Company Act, of the Fund based on his former positions with FAM, MLIM, FAMD, Princeton Services and Princeton Administrators, L.P. The Director's term is unlimited. Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. As Fund President, Mr. Glenn serves at the pleasure of the Board of Directors. ==================================================================================================================================== Independent Directors* - ------------------------------------------------------------------------------------------------------------------------------------ James H. P.O. Box 9095 Director 1995 to Director, The China Business Group, Inc. since 1996 40 Funds None Bodurtha Princeton, NJ present and Executive Vice President thereof from 1996 to 59 Portfolios 08543-9095 2003; Chairman of the Board, Berkshire Holding Age: 59 Corporation since 1980; Partner, Squire, Sanders & Dempsey from 1980 to 1993. - ------------------------------------------------------------------------------------------------------------------------------------ Joe Grills P.O. Box 9095 Director 2002 to Member of the Committee of Investment of 40 Funds Kimco Realty Princeton, NJ present Employee Benefit Assets of the Association of 59 Portfolios Corporation 08543-9095 Financial Professionals ("CIEBA") since 1986 and Age: 68 its Chairman from 1991 to 1992; Member of the Investment Advisory Committees of the State of New York Common Retirement Fund since 1989; Member of the Investment Advisory Committee of the Howard Hughes Medical Institute from 1997 to 2000; Director, Duke Management Company since 1992 and Vice Chairman thereof since 1998; Director, LaSalle Street Fund from 1995 to 2001; Director, Kimco Realty Corporation since 1997; Member of the Investment Advisory Committee of the Virginia Retirement System since 1998 and Vice Chairman thereof since 2002; Director, Montpelier Foundation since 1998 and Vice Chairman thereof since 2000; Member of the Investment Committee of the Woodberry Forest School since 2000; Member of the Investment Committee of the National Trust for Historic Preservation since 2000. - ------------------------------------------------------------------------------------------------------------------------------------ Herbert I. P.O. Box 9095 Director 1992 to John M. Olin Professor of Humanities, New York 40 Funds None London Princeton, NJ present University since 1993 and Professor thereof since 59 Portfolios 08543-9095 1980; President of Hudson Institute since 1997 and Age: 64 Trustee thereof since 1980. - ------------------------------------------------------------------------------------------------------------------------------------ 24 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Officers and Directors (unaudited) (concluded) Number of Portfolios in Other Public Position(s) Length Fund Complex Directorships Held of Time Overseen by Held by Name Address & Age with Fund Served Principal Occupation(s) During Past 5 Years Director Director ==================================================================================================================================== Independent Directors* (concluded) - ------------------------------------------------------------------------------------------------------------------------------------ Andre F. P.O. Box 9095 Director 1992 to George Gund Professor of Finance and Banking, 40 Funds None Perold Princeton, NJ present Harvard Business School since 2000 and a member 59 Portfolios 08543-9095 of the faculty since 1979; Director and Chairman Age: 51 of the Board, UNX, Inc. since 2003; Director, Sanlam Limited and Sanlam Life since 2001; Director, Genbel Securities and Gensec Bank since 1999; Director, Stockback.com from 2002 to 2002; Director, Bulldogresearch.com from 2000 to 2001; Director, Sanlam Investment Management from 1999 to 2001; Director, Quantec Limited from 1991 to 1999. - ------------------------------------------------------------------------------------------------------------------------------------ Roberta P.O. Box 9095 Director 1999 to Shareholder, Modrall, Sperling, Roehl, Harris & 40 Funds None Cooper Princeton, NJ present Sisk, P.A. since 1993; Director of Cooper's, Inc. 59 Portfolios Ramo 08543-9095 since 1999 and Chairman of the Board since 2000; Age: 61 Director of ECMC, Inc. since 2001. - ------------------------------------------------------------------------------------------------------------------------------------ Robert S. P.O. Box 9095 Director 2002 to Principal of STI Management since 1994; Trustee 40 Funds None Salomon, Princeton, NJ present of Commonfund from 1980 to 2001; Director of 59 Portfolios Jr. 08543-9095 Rye Country Day School since 2001. Age: 66 - ------------------------------------------------------------------------------------------------------------------------------------ Stephen B. P.O. Box 9095 Director 2002 to Chairman, Fernwood Advisors (investment adviser) 41 Funds None Swensrud Princeton, NJ present since 1996; Principal of Fernwood Associates 60 Portfolios 08543-9095 (financial consultant) since 1975; Chairman of RPP Age: 70 Corporation since 1978; Director, International Mobile Communications, Inc. since 1998. ------------------------------------------------------------------------------------------------------------------------ * The Director's term is unlimited. Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. - ------------------------------------------------------------------------------------------------------------------------------------ Position(s) Length Held of Time Name Address & Age with Fund Served* Principal Occupation(s) During Past 5 Years ==================================================================================================================================== Fund Officers - ------------------------------------------------------------------------------------------------------------------------------------ Donald C. P.O. Box 9011 Vice 1993 to First Vice President of FAM and MLIM since 1997 and Treasurer thereof since 1999; Burke Princeton, NJ President present Senior Vice President and Treasurer of Princeton Services since 1999; Vice 08543-9011 and and President of FAMD since 1999; Director of MLIM Taxation since 1990. Age: 43 Treasurer 1999 to present - ------------------------------------------------------------------------------------------------------------------------------------ Kenneth A. P.O. Box 9011 Senior Vice 2002 to Managing Director of MLIM since 2000; Director (Municipal Tax-Exempt Fund Jacob Princeton, NJ President present Management) of MLIM from 1997 to 2000. 08543-9011 Age: 52 - ------------------------------------------------------------------------------------------------------------------------------------ John M. P.O. Box 9011 Senior Vice 2002 to Managing Director of MLIM since 2000; Director (Municipal Tax-Exempt Fund Loffredo Princeton, NJ President present Management) of MLIM from 1998 to 2000. 08543-9011 Age: 39 - ------------------------------------------------------------------------------------------------------------------------------------ Walter P.O. Box 9011 Vice 2002 to Managing Director of MLIM since 2003; Director (Municipal Tax-Exempt Fund O'Connor Princeton, NJ President present Management) of MLIM from 2000 to 2003; Vice President of MLIM from 1994 to 2000. 08543-9011 Age: 42 - ------------------------------------------------------------------------------------------------------------------------------------ Brian D. P.O. Box 9011 Secretary 2003 to Vice President (Legal Advisory) of MLIM since 2002; Attorney with Reed Smith from Stewart Princeton, NJ present 2001 to 2002; Attorney with Saul Ewing from 1999 to 2001. 08543-9011 Age: 34 ------------------------------------------------------------------------------------------------------------------------ * Officers of the Fund serve at the pleasure of the Board of Directors. - ------------------------------------------------------------------------------------------------------------------------------------ Custodian State Street Bank and Trust Company P.O. Box 351 Boston, MA 02101 Transfer Agents Common Stock: EquiServe P.O. Box 43010 Providence, RI 02940-3010 Preferred Stock: The Bank of New York 100 Church Street New York, NY 10286 NYSE Symbol MCA MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 25 [LOGO] Merrill Lynch Investment Managers Important Tax Information (unaudited) All of the net investment income distributions paid by MuniYield California Insured Fund, Inc. during its taxable year ended October 31, 2003 qualify as tax-exempt interest dividends for Federal income tax purposes. Please retain this information for your records. 26 MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 Electronic Delivery The Fund is now offering electronic delivery of communications to its 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 website 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. MUNIYIELD CALIFORNIA INSURED FUND, INC. OCTOBER 31, 2003 27 [LOGO] Merrill Lynch Investment Managers www.mlim.ml.com MuniYield California Insured Fund, Inc. seeks to provide shareholders with as high a level of current income exempt from Federal and California income taxes as is consistent with its investment policies and prudent investment management by investing primarily in a portfolio of long-term investment-grade municipal obligations the interest on which, in the opinion of bond counsel to the issuer, is exempt from Federal and California income taxes. This report, including the financial information herein, is transmitted to shareholders of MuniYield California Insured Fund, Inc. for their information. It is not a prospectus. Past performance results shown in this report should not be considered a representation of future performance. The Fund has leveraged its Common Stock and intends to remain leveraged by issuing Preferred Stock to provide the Common Stock shareholders with a potentially higher rate 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. Statements and other information herein are as dated and are subject to change. MuniYield California Insured Fund, Inc. Box 9011 Princeton, NJ 08543-9011 #16388 -- 10/03 Item 2 - Did registrant adopt a code of ethics, as of the end of the period covered by this report, that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party? If not, why not? Briefly describe any amendments or waivers that occurred during the period. State here if code of ethics/amendments/waivers are on website and give website address-. State here if fund will send code of ethics to shareholders without charge upon request-- The registrant has adopted a code of ethics, as of the end of the period covered by this report, that applies to the registrant's principal executive officer, principal financial officer and principal accounting officer, or persons performing similar functions. A copy of the code of ethics is available without charge upon request by calling toll-free 1-800-MER-FUND (1-800-637-3863). Item 3 - Did the registrant's board of directors determine that the registrant either: (i) has at least one audit committee financial expert serving on its audit committee; or (ii) does not have an audit committee financial expert serving on its audit committee? If yes, disclose name of financial expert and whether he/she is "independent," (fund may, but is not required, to disclose name/independence of more than one financial expert) If no, explain why not. - The registrant's board of directors has determined that (i) the registrant has the following audit committee financial experts serving on its audit committee and (ii) each audit committee financial expert is independent: (1) Joe Grills, (2) Andre Perold, (3) Robert S. Salomon, Jr., and (4) Stephen B. Swensrud. Item 4 - Disclose annually only (not answered until December 15, 2003) (a) Audit Fees - Disclose aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. N/A. (b) Audit-Related Fees - Disclose aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant's financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (c) Tax Fees - Disclose aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (d) All Other Fees - Disclose aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A. (e)(1) Disclose the audit committee's pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X. N/A. (e)(2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. N/A. (f) If greater than 50%, disclose the percentage of hours expended on the principal accountant's engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A. (g) Disclose the aggregate non-audit fees billed by the registrant's accountant for services rendered to the registrant, and rendered to the registrant's investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. N/A. (h) Disclose whether the registrant's audit committee has considered whether the provision of non-audit services that were rendered to the registrant's investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. N/A. Item 5 - If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act, state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act. If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant's audit committee in Section 3(a)(58)(B) of the Exchange Act, so state. If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act regarding an exemption from the listing standards for audit committees. N/A (Listed issuers must be in compliance with the new listing rules by the earlier of their first annual shareholders meeting after January 2004, or October 31, 2004 (annual requirement)) Item 6 - Reserved Item 7 - For closed-end funds that contain voting securities in their portfolio, describe the policies and procedures that it uses to determine how to vote proxies relating to those portfolio securities. Proxy Voting Policies and Procedures Each Fund's Board of Directors/Trustees has delegated to Merrill Lynch Investment Managers, L.P. and/or Fund Asset Management, L.P. (the "Investment Adviser") authority to vote all proxies relating to the Fund's portfolio securities. The Investment Adviser has adopted policies and procedures ("Proxy Voting Procedures") with respect to the voting of proxies related to the portfolio securities held in the account of one or more of its clients, including a Fund. Pursuant to these Proxy Voting Procedures, the Investment Adviser's primary objective when voting proxies is to make proxy voting decisions solely in the best interests of each Fund and its shareholders, and to act in a manner that the Investment Adviser believes is most likely to enhance the economic value of the securities held by the Fund. The Proxy Voting Procedures are designed to ensure that the Investment Adviser considers the interests of its clients, including the Funds, and not the interests of the Investment Adviser, when voting proxies and that real (or perceived) material conflicts that may arise between the Investment Adviser's interest and those of the Investment Adviser's clients are properly addressed and resolved. In order to implement the Proxy Voting Procedures, the Investment Adviser has formed a Proxy Voting Committee (the "Committee"). The Committee is comprised of the Investment Adviser's Chief Investment Officer (the "CIO"), one or more other senior investment professionals appointed by the CIO, portfolio managers and investment analysts appointed by the CIO and any other personnel the CIO deems appropriate. The Committee will also include two non-voting representatives from the Investment Adviser's Legal department appointed by the Investment Adviser's General Counsel. The Committee's membership shall be limited to full-time employees of the Investment Adviser. No person with any investment banking, trading, retail brokerage or research responsibilities for the Investment Adviser's affiliates may serve as a member of the Committee or participate in its decision making (except to the extent such person is asked by the Committee to present information to the Committee, on the same basis as other interested knowledgeable parties not affiliated with the Investment Adviser might be asked to do so). The Committee determines how to vote the proxies of all clients, including a Fund, that have delegated proxy voting authority to the Investment Adviser and seeks to ensure that all votes are consistent with the best interests of those clients and are free from unwarranted and inappropriate influences. The Committee establishes general proxy voting policies for the Investment Adviser and is responsible for determining how those policies are applied to specific proxy votes, in light of each issuer's unique structure, management, strategic options and, in certain circumstances, probable economic and other anticipated consequences of alternate actions. In so doing, the Committee may determine to vote a particular proxy in a manner contrary to its generally stated policies. In addition, the Committee will be responsible for ensuring that all reporting and recordkeeping requirements related to proxy voting are fulfilled. The Committee may determine that the subject matter of a recurring proxy issue is not suitable for general voting policies and requires a case-by-case determination. In such cases, the Committee may elect not to adopt a specific voting policy applicable to that issue. The Investment Adviser believes that certain proxy voting issues require investment analysis - such as approval of mergers and other significant corporate transactions - akin to investment decisions, and are, therefore, not suitable for general guidelines. The Committee may elect to adopt a common position for the Investment Adviser on certain proxy votes that are akin to investment decisions, or determine to permit the portfolio manager to make individual decisions on how best to maximize economic value for a Fund (similar to normal buy/sell investment decisions made by such portfolio managers). While it is expected that the Investment Adviser will generally seek to vote proxies over which the Investment Adviser exercises voting authority in a uniform manner for all the Investment Adviser's clients, the Committee, in conjunction with a Fund's portfolio manager, may determine that the Fund's specific circumstances require that its proxies be voted differently. To assist the Investment Adviser in voting proxies, the Committee has retained Institutional Shareholder Services ("ISS"). ISS is an independent adviser that specializes in providing a variety of fiduciary-level proxy-related services to institutional investment managers, plan sponsors, custodians, consultants, and other institutional investors. The services provided to the Investment Adviser by ISS include in-depth research, voting recommendations (although the Investment Adviser is not obligated to follow such recommendations), vote execution, and recordkeeping. ISS will also assist the Fund in fulfilling its reporting and recordkeeping obligations under the Investment Company Act. The Investment Adviser's Proxy Voting Procedures also address special circumstances that can arise in connection with proxy voting. For instance, under the Proxy Voting Procedures, the Investment Adviser generally will not seek to vote proxies related to portfolio securities that are on loan, although it may do so under certain circumstances. In addition, the Investment Adviser will vote proxies related to securities of foreign issuers only on a best efforts basis and may elect not to vote at all in certain countries where the Committee determines that the costs associated with voting generally outweigh the benefits. The Committee may at any time override these general policies if it determines that such action is in the best interests of a Fund. From time to time, the Investment Adviser may be required to vote proxies in respect of an issuer where an affiliate of the Investment Adviser (each, an "Affiliate"), or a money management or other client of the Investment Adviser (each, a "Client") is involved. The Proxy Voting Procedures and the Investment Adviser's adherence to those procedures are designed to address such conflicts of interest. The Committee intends to strictly adhere to the Proxy Voting Procedures in all proxy matters, including matters involving Affiliates and Clients. If, however, an issue representing a non-routine matter that is material to an Affiliate or a widely known Client is involved such that the Committee does not reasonably believe it is able to follow its guidelines (or if the particular proxy matter is not addressed by the guidelines) and vote impartially, the Committee may, in its discretion for the purposes of ensuring that an independent determination is reached, retain an independent fiduciary to advise the Committee on how to vote or to cast votes on behalf of the Investment Adviser's clients. In the event that the Committee determines not to retain an independent fiduciary, or it does not follow the advice of such an independent fiduciary, the powers of the Committee shall pass to a subcommittee, appointed by the CIO (with advice from the Secretary of the Committee), consisting solely of Committee members selected by the CIO. The CIO shall appoint to the subcommittee, where appropriate, only persons whose job responsibilities do not include contact with the Client and whose job evaluations would not be affected by the Investment Adviser's relationship with the Client (or failure to retain such relationship). The subcommittee shall determine whether and how to vote all proxies on behalf of the Investment Adviser's clients or, if the proxy matter is, in their judgment, akin to an investment decision, to defer to the applicable portfolio managers, provided that, if the subcommittee determines to alter the Investment Adviser's normal voting guidelines or, on matters where the Investment Adviser's policy is case-by-case, does not follow the voting recommendation of any proxy voting service or other independent fiduciary that may be retained to provide research or advice to the Investment Adviser on that matter, no proxies relating to the Client may be voted unless the Secretary, or in the Secretary's absence, the Assistant Secretary of the Committee concurs that the subcommittee's determination is consistent with the Investment Adviser's fiduciary duties In addition to the general principles outlined above, the Investment Adviser has adopted voting guidelines with respect to certain recurring proxy issues that are not expected to involve unusual circumstances. These policies are guidelines only, and the Investment Adviser may elect to vote differently from the recommendation set forth in a voting guideline if the Committee determines that it is in a Fund's best interest to do so. In addition, the guidelines may be reviewed at any time upon the request of a Committee member and may be amended or deleted upon the vote of a majority of Committee members present at a Committee meeting at which there is a quorum. The Investment Adviser has adopted specific voting guidelines with respect to the following proxy issues: o Proposals related to the composition of the Board of Directors of issuers other than investment companies. As a general matter, the Committee believes that a company's Board of Directors (rather than shareholders) is most likely to have access to important, nonpublic information regarding a company's business and prospects, and is therefore best-positioned to set corporate policy and oversee management. The Committee, therefore, believes that the foundation of good corporate governance is the election of qualified, independent corporate directors who are likely to diligently represent the interests of shareholders and oversee management of the corporation in a manner that will seek to maximize shareholder value over time. In individual cases, the Committee may look at a nominee's history of representing shareholder interests as a director of other companies or other factors, to the extent the Committee deems relevant. o Proposals related to the selection of an issuer's independent auditors. As a general matter, the Committee believes that corporate auditors have a responsibility to represent the interests of shareholders and provide an independent view on the propriety of financial reporting decisions of corporate management. While the Committee will generally defer to a corporation's choice of auditor, in individual cases, the Committee may look at an auditors' history of representing shareholder interests as auditor of other companies, to the extent the Committee deems relevant. o Proposals related to management compensation and employee benefits. As a general matter, the Committee favors disclosure of an issuer's compensation and benefit policies and opposes excessive compensation, but believes that compensation matters are normally best determined by an issuer's board of directors, rather than shareholders. Proposals to "micro-manage" an issuer's compensation practices or to set arbitrary restrictions on compensation or benefits will, therefore, generally not be supported. o Proposals related to requests, principally from management, for approval of amendments that would alter an issuer's capital structure. As a general matter, the Committee will support requests that enhance the rights of common shareholders and oppose requests that appear to be unreasonably dilutive. o Proposals related to requests for approval of amendments to an issuer's charter or by-laws. As a general matter, the Committee opposes poison pill provisions. o Routine proposals related to requests regarding the formalities of corporate meetings. o Proposals related to proxy issues associated solely with holdings of investment company shares. As with other types of companies, the Committee believes that a fund's Board of Directors (rather than its shareholders) is best-positioned to set fund policy and oversee management. However, the Committee opposes granting Boards of Directors authority over certain matters, such as changes to a fund's investment objective, that the Investment Company Act envisions will be approved directly by shareholders. o Proposals related to limiting corporate conduct in some manner that relates to the shareholder's environmental or social concerns. The Committee generally believes that annual shareholder meetings are inappropriate forums for discussion of larger social issues, and opposes shareholder resolutions "micromanaging" corporate conduct or requesting release of information that would not help a shareholder evaluate an investment in the corporation as an economic matter. While the Committee is generally supportive of proposals to require corporate disclosure of matters that seem relevant and material to the economic interests of shareholders, the Committee is generally not supportive of proposals to require disclosure of corporate matters for other purposes. Item 8 -- Reserved Item 9(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. Item 9(b) -- There were no significant changes in the registrant's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Item 10 - Exhibits 10(a) - Attach code of ethics or amendments/waivers, unless code of ethics or amendments/waivers is on website or offered to shareholders upon request without charge. N/A. 10(b) - Attach certifications pursuant to Section 302 of the Sarbanes-Oxley Act. 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. MuniYield California Insured Fund, Inc. By: /s/ Terry K. Glenn ------------------------------ Terry K. Glenn, President of MuniYield California Insured Fund, Inc. Date: December 22, 2003 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Terry K. Glenn ------------------------------ Terry K. Glenn, President of MuniYield California Insured Fund, Inc. Date: December 22, 2003 By: /s/ Donald C. Burke ------------------------------ Donald C. Burke, Chief Financial Officer of MuniYield California Insured Fund, Inc. Date: December 22, 2003 Attached hereto as a furnished exhibit are the certifications pursuant to Section 906 of the Sarbanes-Oxley Act.