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 811-02857 811-21434 Name of Fund: BlackRock Bond Fund of BlackRock Bond Fund, Inc. Master Bond Trust Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer, BlackRock Bond Fund of BlackRock Bond Fund, Inc. and Master Bond Trust, 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: 09/30/06 Date of reporting period: 10/01/05 - 09/30/06 Item 1 - Report to Stockholders ALTERNATIVES BLACKROCK SOLUTIONS EQUITIES FIXED INCOME LIQUIDITY REAL ESTATE BlackRock Bond Fund OF BLACKROCK BOND FUND, INC. ANNUAL REPORT SEPTEMBER 30, 2006 (BLACKROCK logo) NOT FDIC INSURED MAY LOSE VALUE NO BANK GUARANTEE This report is not authorized for use as an offer of sale or a solicitation of an offer to buy shares of the Fund unless accompanied or preceded by the Fund's current prospectus. Past performance results shown in this report should not be considered a representation of future performance. Investment return and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Statements and other information herein are as dated and are subject to change. A description of the policies and procedures that the Fund uses to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling toll-free 1-800-441-7762; (2) at www.blackrock.com; and (3) on the Securities and Exchange Commission's Web site at http://www.sec.gov. Information about how the Fund voted proxies relating to securities held in the Fund's portfolio during the most recent 12-month period ended June 30 is available (1) at www.blackrock.com and (2) on the Securities and Exchange Commission's Web site at http://www.sec.gov. BlackRock Bond Fund, Inc. Box 9011 Princeton, NJ 08543-9011 (GO PAPERLESS...logo) It's Fast, Convenient, & Timely! To sign up today, go to www.blackrock.com/edelivery. BlackRock Bond Fund of BlackRock Bond Fund, Inc. Proxy Results During the six-month period ended September 30, 2006, BlackRock Bond Fund of BlackRock Bond Fund, Inc.'s shareholders voted on the following proposals. Proposals 1 and 3 were approved at a shareholders' meeting on August 15, 2006. A description of the proposals and number of shares voted were as follows: Shares Voted Shares Voted Shares Voted For Against Abstain 1. To approve a new investment advisory agreement with BlackRock Advisors, Inc. 101,759,257 1,499,907 1,565,165 3. To approve a contingent subadvisory agreement with BlackRock Advisors, Inc. 101,601,755 1,583,342 1,639,231 Important Tax Information The following information is provided with respect to the ordinary income distributions paid by BlackRock Bond Fund of BlackRock Bond Fund, Inc. for the fiscal year ended September 30, 2006: Federal Obligation Interest Month Paid: October 2005 - September 2006 7.47%* Interest-Related Dividends for Non-U.S. Residents Month Paid: November 2005 .80%** December 2005 90.65%** January 2006 - September 2006 75.45%** * The law varies in each state as to whether and what percentage of dividend income attributable to Federal Obligations is exempt from state income tax. We recommend that you consult your tax adviser to determine if any portion of the dividends you received is exempt from state income taxes. ** Represents the portion of the taxable ordinary income dividends eligible for exemption from U.S. withholding tax for nonresident aliens and foreign corporations. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 A Letter to Shareholders Dear Shareholder It is my pleasure to welcome you to BlackRock. On September 29, 2006, BlackRock, Inc. ("BlackRock") and Merrill Lynch Investment Managers, L.P. ("MLIM") united to form one of the largest asset management firms in the world. Now with more than $1 trillion in assets under management, over 4,000 employees in 18 countries and representation in key markets worldwide, BlackRock's global presence means greater depth and scale to serve you. The new BlackRock unites some of the finest money managers in the industry. Our ranks include more than 500 investment professionals globally - portfolio managers, research analysts, risk management professionals and traders. With offices strategically located around the world, our investment professionals have in-depth local knowledge and the ability to leverage our global presence and robust infrastructure to deliver focused investment solutions. BlackRock's professional investors are supported by disciplined investment processes and best-in-class technology, ensuring that our portfolio managers are well equipped to research, uncover and capitalize on the opportunities the world's markets have to offer. The BlackRock culture emphasizes excellence, teamwork and integrity in the management of a variety of equity, fixed income, cash management, alternative investment and real estate products. Our firm's core philosophy is grounded in the belief that experienced investment and risk professionals using disciplined investment processes and sophisticated analytical tools can consistently add value to client portfolios. As you probably are aware, most former MLIM investment products now carry the "BlackRock" name. This is reflected in newspapers and online fund reporting resources. Your account statements, as of the October month-end reporting period, also reflect the BlackRock name. Unless otherwise communicated to you, your funds maintain the same investment objectives that they did prior to the combination of MLIM and BlackRock. Importantly, this union does not affect your brokerage account or your relationship with your financial advisor. Clients of Merrill Lynch remain clients of Merrill Lynch. We view this combination of asset management leaders as a complementary union that reinforces our commitment to shareholders. Individually, each firm made investment performance its single most important mission. Together, we are even better prepared to capitalize on market opportunities on behalf of our shareholders. Our focus on investment excellence is accompanied by an unwavering commitment to service, enabling us to assist clients, in cooperation with their financial professionals, in working toward their investment goals. We thank you for allowing us the opportunity, and we look forward to serving your investment needs in the months and years ahead as the new BlackRock. Sincerely, (Robert C. Doll, Jr.) Robert C. Doll, Jr. Vice Chairman BlackRock, Inc. Data, including assets under management, are as of June 30, 2006. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 A Discussion With Your Fund's Portfolio Managers We maintained a relatively conservative approach throughout the fiscal year, looking to our yield curve positioning and duration profile as the key drivers of relative performance. How did the Fund perform during the fiscal year in light of the existing market conditions? For the 12-month period ended September 30, 2006, BlackRock Bond Fund of BlackRock Bond Fund, Inc.'s (formerly Core Bond Portfolio of Merrill Lynch Bond Fund, Inc.) Class A, Class B, Class C, Class I and Class R Shares had total returns of +3.13%, +2.60%, +2.46%, +3.39% and +2.88%, respectively. For the same period, the benchmark Lehman Brothers Aggregate Bond Index returned +3.67%. (Fund results shown do not reflect sales charges and would be lower if sales charges were included. Complete performance information can be found on pages 6 and 7 of this report to shareholders.) The past year was characterized by reasonable (albeit slowing) economic growth, inflationary fears propagated by high energy prices and a continued vigilant Federal Reserve Board (the Fed). The Fed raised interest rates six times during the fiscal period before pausing on August 8, at last acknowledging a slowdown in economic growth. At this point, the bond market began to rally, with the benchmark 10-year Treasury yield falling as bond prices correspondingly rose. Still, year-over-year, yields rose across the curve and uncertainty prevailed as the markets struggled to interpret the intentions of new Fed Chairman Ben Bernanke. On balance, it was a fairly challenging period for fixed income investment. The Fund's performance was influenced by our duration profile, yield curve strategy and sector allocation decisions. In the first half of the year, we had positioned the portfolio for a flattening yield curve, expressed largely through an underexposure in the two-year - five-year part of the curve and an above-average position in the 30-year area. Because bond prices move in the opposite direction of yields, our strategy was correct as short-term yields rose more than long-term yields. This effect reversed in March as the yield curve began to resteepen, and we took the opportunity to begin moving away from our flattening bias. Similarly, we began the fiscal year with a relatively short duration but started to limit that bias somewhat as the Fed approached its desired "neutral" federal funds target. By mid-year, the Fund was positioned with a slightly long duration, a posture we assumed as the 10-year Treasury yield approached 5.25%. Our increasing duration hurt performance at times when interest rates rose (as a shorter duration means less sensitivity to interest rate risk, and vice versa). However, our longer relative duration was a positive in the final quarter of the period as yields began to move lower. In terms of specific fixed income sectors, we maintained a neutral-to-slightly underweight position in corporate bonds and mortgages for much of the year, a strategy that benefited performance compared to the benchmark. This was particularly true in the second quarter of 2006 as credit spreads (versus Treasury issues of comparable maturity) widened. Conversely, we overweighted structured products, such as asset-backed securities (ABS) and commercial mortgage-backed securities (CMBS), a move that enhanced performance as these sectors offered an incremental yield advantage over Treasury issues. Exposure to Treasury Inflation Protected Securities (TIPS) early in the year detracted from performance. What changes were made to the portfolio during the period? We actively adjusted the portfolio's duration profile based on our assessment of interest rate direction. Although interest rates rose year-over-year, they also fell at times when the Fed began to soften its stance on inflation and expectations for future interest rate hikes declined. As Chairman Bernanke sought to establish credibility with the markets, his statements often resulted in ambiguity regarding the direction of interest rates. We worked to manage the Fund's duration amid the uncertainty. We began the year with a relatively short duration. In March, the Treasury curve steepened by 20 basis points (.20%) between the two-year and 30-year sectors. This was a dramatic one-month move considering the flatness of the curve, and served to support the short end as the long end normalized. This prompted us to remove some of our curve flattening bias and to move from a short duration bias toward a more neutral duration profile. By the second quarter of 2006, as long-term interest rates continued to rise, the Fund's duration was slightly longer than that of the benchmark index. In our view, the 10-year U.S. Treasury began to represent value as its yield approached 5.25%. By period-end, as long-term interest rates moved lower, we returned to a slightly short duration bias in an effort to shield the portfolio from any potential backup in rates. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Turning to sectors, the portfolio was underweight in corporate bonds for much of the year as credit spreads remained tight, meaning there was little additional yield to be gained in exchange for the risk involved. In the final three months of the period, we reestablished some exposure to corporate bonds as spreads widened and value was restored to the sector. We felt corporate bonds should perform well if rates remained at or near the low levels reached in the second quarter. With this additional exposure, the portfolio's position in corporate bonds increased from an underweight versus the benchmark to an overweight. At period-end, 23.6% of the Fund's net assets was invested in investment grade corporate bonds. For the most part, we continued to favor high-quality spread sectors throughout the year for their yield-enhancement potential. Having said that, we did reduce exposure to these sectors in the second quarter of 2006 in keeping with a general theme of risk reduction in the portfolio. Overall, we preferred CMBS and ABS for their relatively high credit quality and potential to generate additional yield for the portfolio. How would you characterize the Fund's position at the close of the period? In our last report to shareholders, we noted that a slowdown in economic activity should help to calm some of the inflationary fears propagated by the Fed. This seemed to materialize as the Fed opted to interrupt its two-year interest rate-hiking campaign in August, and again chose to leave rates unchanged on September 20, citing an obvious slowdown in the economy as a factor in its decision. Indeed, inflation is a lagging indicator, and we believe we have yet to feel the full effects of the Fed's 17 consecutive interest rate hikes. In addition, the housing market is weakening and high energy prices have taken a bite out of consumption. All of this gives us reason for optimism. As such, we shifted the portfolio slightly to take advantage of a more favorable credit environment. John Burger Vice President and Portfolio Manager Patrick Maldari Vice President and Portfolio Manager James J. Pagano Vice President and Portfolio Manager Frank Viola Vice President and Portfolio Manager October 2, 2006 Effective October 2, 2006, Portfolio Managers Keith Anderson, Scott Amero, Matthew Marra and Andrew Phillips assumed responsibility for the day-to-day management of the Fund's portfolio. Mr. Anderson is a Vice Chairman of BlackRock, Inc., Chief Investment Officer for Fixed Income and a member of the firm's Executive and Management Committees. He is Chairman of the Investment Strategy Group and is responsible for global fixed income strategy, asset allocation and the overall management of client portfolios. Mr. Anderson is a founding partner of BlackRock, which was established in 1988. Mr. Amero is a Managing Director of BlackRock, co-head of the fixed income portfolio management team and a member of the Management Committee and the Investment Strategy Group. Mr. Amero joined BlackRock in 1990. Mr. Marra, a Managing Director of BlackRock and portfolio manager, is a member of the Investment Strategy Group. He joined BlackRock in 1995. Mr. Phillips, a Managing Director of BlackRock and portfolio manager, also is a member of the Investment Strategy Group. He joined BlackRock in 1991. Effective October 2, 2006, the Portfolio's Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. As previously communicated to shareholders, new sales charge schedules came into effect at the same time for certain of these classes. Class R Shares remain the same. On October 16, 2006, the Fund acquired all of the net assets of BlackRock Intermediate Term Fund of BlackRock Bond Fund, Inc. pursuant to a plan of reorganization. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Performance Data About Fund Performance The Fund has multiple classes of shares: * Class A Shares incur a maximum initial sales charge (front-end load) of 4% and an account maintenance fee of 0.25% per year (but no distribution fee). * Class B Shares are subject to a maximum contingent deferred sales charge of 4%, declining to 0% after six years. All Class B Shares purchased prior to December 1, 2002 will maintain the four-year schedule. In addition, Class B Shares are subject to a distribution fee of 0.50% per year and an account maintenance fee of 0.25% per year. These shares automatically convert to Class A Shares after approximately 10 years. (There is no initial sales charge for automatic share conversions.) *Class C Shares are subject to a distribution fee of 0.55% per year and an account maintenance fee of 0.25% per year. In addition, Class C Shares are subject to a 1% contingent deferred sales charge if redeemed within one year of purchase. * Class I Shares are not subject to any front-end sales charge. Class I Shares bear no ongoing distribution or account maintenance fees and are available only to eligible investors. * Class R Shares do not incur a maximum sales charge (front-end load) or deferred sales charge. These shares are subject to a distribution fee of 0.25% per year and an account maintenance fee of 0.25% per year. Class R Shares are available only to certain retirement plans. Prior to inception, Class R Share performance results are those of the Class I Shares (which have no distribution or account maintenance fees) restated for Class R Share fees. None of the past results shown should be considered a representation of future performance. Current performance may be lower or higher than the performance data quoted. Refer to www.blackrock.com to obtain performance data current to the most recent month-end. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. Figures shown in each of the following tables assume reinvestment of all dividends and capital gain distributions, if any, at net asset value on the payable date. Investment return and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Dividends paid to each class of shares will vary because of the different levels of account maintenance, distribution and transfer agency fees applicable to each class, which are deducted from the income available to be paid to shareholders. The Portfolio's Investment Adviser waived a portion of its fee. Without such waiver, the Portfolio's performance would have been lower. Recent Performance Results 6-Month 12-Month 10-Year Standardized As of September 30, 2006 Total Return Total Return Total Return 30-day Yield Class A Shares* +3.37% +3.13% +69.41% 4.32% Class B Shares* +3.10 +2.60 +60.88 3.97 Class C Shares* +2.98 +2.46 +59.89 3.93 Class I Shares* +3.50 +3.39 +73.68 4.75 Class R Shares* +3.24 +2.88 +66.12 4.25 Lehman Brothers Aggregate Bond Index** +3.73 +3.67 +86.31 -- Merrill Lynch U.S. Corporate Master Index*** +4.08 +3.46 +94.59 -- * Investment results shown do not reflect sales charges; results shown would be lower if a sales charge was included. Cumulative total investment returns are based on changes in net asset values for the periods shown, and assume reinvestment of all dividends and capital gains distributions at net asset value on the payable date. ** This unmanaged market-weighted Index is comprised of investment grade corporate bonds (rated BBB or better), mortgages and U.S. Treasury and government agency issues with at least one year to maturity. *** This unmanaged Index is comprised of all investment grade corporate bonds rated BBB or higher, of all maturities. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Performance Data (concluded) Total Return Based on a $10,000 Investment A line graph illustrating the growth of a $10,000 investment in Class A Shares*++, Class B Shares*++, Class C Shares*++, Class I Shares*++ and Class R Shares*++ compared to a similar investment in Lehman Brothers Aggregate Bond Index++++ and Merrill Lynch U.S. Corporate Master Index++++++. Values illustrated are as follows: Class A Shares*++ Date Value September 1996 $ 9,600.00 September 1997 $10,459.00 September 1998 $11,481.00 September 1999 $11,248.00 September 2000 $11,789.00 September 2001 $13,107.00 September 2002 $14,083.00 September 2003 $14,858.00 September 2004 $15,390.00 September 2005 $15,769.00 September 2006 $16,263.00 Class B Shares*++ Date Value September 1996 $10,000.00 September 1997 $10,839.00 September 1998 $11,837.00 September 1999 $11,547.00 September 2000 $12,041.00 September 2001 $13,318.00 September 2002 $14,236.00 September 2003 $14,943.00 September 2004 $15,397.00 September 2005 $15,681.00 September 2006 $16,088.00 Class C Shares*++ Date Value September 1996 $10,000.00 September 1997 $10,824.00 September 1998 $11,824.00 September 1999 $11,519.00 September 2000 $12,005.00 September 2001 $13,271.00 September 2002 $14,178.00 September 2003 $14,873.00 September 2004 $15,318.00 September 2005 $15,606.00 September 2006 $15,989.00 Class I Shares*++ Date Value September 1996 $10,000.00 September 1997 $10,922.00 September 1998 $12,019.00 September 1999 $11,815.00 September 2000 $12,414.00 September 2001 $13,837.00 September 2002 $14,903.00 September 2003 $15,764.00 September 2004 $16,369.00 September 2005 $16,799.00 September 2006 $17,368.00 Class R Shares*++ Date Value September 1996 $10,000.00 September 1997 $10,868.00 September 1998 $11,901.00 September 1999 $11,640.00 September 2000 $12,170.00 September 2001 $13,497.00 September 2002 $14,465.00 September 2003 $15,293.00 September 2004 $15,812.00 September 2005 $16,147.00 September 2006 $16,612.00 Lehman Brothers Aggregate Bond Index++++ Date Value September 1996 $10,000.00 September 1997 $10,971.00 September 1998 $12,234.00 September 1999 $12,189.00 September 2000 $13,041.00 September 2001 $14,731.00 September 2002 $15,997.00 September 2003 $16,863.00 September 2004 $17,483.00 September 2005 $17,971.00 September 2006 $18,631.00 Merrill Lynch U.S. Corporate Master Index++++++ Date Value September 1996 $10,000.00 September 1997 $11,123.00 September 1998 $12,311.00 September 1999 $12,185.00 September 2000 $12,878.00 September 2001 $14,623.00 September 2002 $15,731.00 September 2003 $17,468.00 September 2004 $18,281.00 September 2005 $18,807.00 September 2006 $19,459.00 * Assuming maximum sales charge, if any, transaction costs and other operating expenses, including advisory fees. ++ The Fund invests primarily in long-term, fixed income securities that are rated in the four highest categories of the recognized rating agencies (Baa or better by Moody's Investors Service, Inc. or BBB or better by Standard & Poor's Corp.). ++++ This unmanaged market-weighted Index is comprised of investment grade corporate bonds (rated BBB or better), mortgages and U.S. Treasury and government agency issues with at least one year to maturity. ++++++ This unmanaged Index is comprised of all investment grade corporate bonds rated BBB or higher, of all maturities. Past performance is not indicative of future results. Average Annual Total Return Return Without Return With Sales Charge Sales Charge** Class A Shares* One Year Ended 9/30/06 +3.13% -0.99% Five Years Ended 9/30/06 +4.41 +3.56 Ten Years Ended 9/30/06 +5.41 +4.98 Return Return Without CDSC With CDSC++++++ Class B Shares++ One Year Ended 9/30/06 +2.60% -1.35% Five Years Ended 9/30/06 +3.85 +3.50 Ten Years Ended 9/30/06 +4.87 +4.87 Return Return Without CDSC With CDSC++++++ Class C Shares++++ One Year Ended 9/30/06 +2.46% +1.47% Five Years Ended 9/30/06 +3.80 +3.80 Ten Years Ended 9/30/06 +4.81 +4.81 Class I Shares Return One Year Ended 9/30/06 +3.39% Five Years Ended 9/30/06 +4.65 Ten Years Ended 9/30/06 +5.68 Class R Shares Return One Year Ended 9/30/06 +2.88% Five Years Ended 9/30/06 +4.24 Ten Years Ended 9/30/06 +5.21 * Maximum sales charge is 4%. ** Assuming maximum sales charge. ++ Maximum contingent deferred sales charge is 4% and is reduced to 0% after six years. ++++ Maximum contingent deferred sales charge is 1% and is reduced to 0% after one year. ++++++ Assuming payment of applicable contingent deferred sales charge. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Disclosure of Expenses Shareholders of this Fund may incur the following charges: (a) expenses related to transactions, including sales charges, redemption fees and exchange fees; and (b) operating expenses including advisory fees, distribution fees including 12b-1 fees, and other Fund expenses. The following example (which is based on a hypothetical investment of $1,000 invested on April 1, 2006 and held through September 30, 2006) is intended to assist shareholders both in calculating expenses based on an investment in the Fund and in comparing these expenses with similar costs of investing in other mutual funds. The first table below provides information about actual account values and actual expenses. In order to estimate the expenses a shareholder paid during the period covered by this report, shareholders can divide their account value by $1,000 and then multiply the result by the number in the first line under the heading entitled "Expenses Paid During the Period." The second table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses. In order to assist shareholders in comparing the ongoing expenses of investing in this Fund and other funds, compare the 5% hypothetical example with the 5% hypothetical examples that appear in other funds' shareholder reports. The expenses shown in the table are intended to highlight shareholders' ongoing costs only and do not reflect any transactional expenses, such as sales charges, redemption fees or exchange fees. Therefore, the second table is useful in comparing ongoing expenses only, and will not help shareholders determine the relative total expenses of owning different funds. If these transactional expenses were included, shareholder expenses would have been higher. Expenses Paid Beginning Ending During the Period* Account Value Account Value April 1, 2006 to April 1, September 30, September 30, 2006 2006 2006 Actual Class A $1,000 $1,033.70 $4.26 Class B $1,000 $1,031.00 $6.89 Class C $1,000 $1,029.80 $7.19 Class I $1,000 $1,035.00 $2.99 Class R $1,000 $1,032.40 $5.52 Hypothetical (5% annual return before expenses)** Class A $1,000 $1,020.71 $4.23 Class B $1,000 $1,018.12 $6.84 Class C $1,000 $1,017.82 $7.14 Class I $1,000 $1,021.96 $2.97 Class R $1,000 $1,019.46 $5.49 * For each class of the Fund, expenses are equal to the annualized expense ratio for the class (.84% for Class A, 1.36% for Class B, 1.42% for Class C, .59% for Class I and 1.09% for Class R), multiplied by the average account value over the period, multiplied by 182/365 (to reflect the one-half year period shown). Because the Fund is a feeder fund, the expense table example reflects the expenses of both the feeder fund and the master fund in which it invests. ** Hypothetical 5% annual return before expenses is calculated by pro-rating the number of days in the most recent fiscal half year divided by 365. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statement of Assets and Liabilities BlackRock Bond Fund As of September 30, 2006 Assets Investment in Master Bond Portfolio (the "Master Portfolio"), at value (identified cost--$2,033,601,134) $ 2,038,977,045 Prepaid expenses 58,478 --------------- Total assets 2,039,035,523 --------------- Liabilities Payables: Dividends to shareholders $ 2,321,158 Distributor 602,454 Other affiliates 568,800 Administrator 471,855 3,964,267 --------------- Accrued expenses 10,365 --------------- Total liabilities 3,974,632 --------------- Net Assets Net assets $ 2,035,060,891 =============== Net Assets Consist of+++ Class A Shares of Common Stock, $.10 par value, 100,000,000 shares authorized $ 5,221,997 Class B Shares of Common Stock, $.10 par value, 250,000,000 shares authorized 2,168,844 Class C Shares of Common Stock, $.10 par value, 100,000,000 shares authorized 3,884,854 Class I Shares of Common Stock, $.10 par value, 250,000,000 shares authorized 6,088,247 Class R Shares of Common Stock, $.10 par value, 250,000,000 shares authorized 328,821 Paid-in capital in excess of par 2,055,765,345 Accumulated distributions in excess of investment income--net $ (4,103,401) Accumulated realized capital losses allocated from the Master Portfolio--net (39,669,727) Unrealized appreciation allocated from the Master Portfolio--net 5,375,911 --------------- Total accumulated losses--net (38,397,217) --------------- Net Assets $ 2,035,060,891 =============== Net Asset Value+++ Class A--Based on net assets of $600,846,716 and 52,219,966 shares outstanding $ 11.51 =============== Class B--Based on net assets of $249,402,994 and 21,688,436 shares outstanding $ 11.50 =============== Class C--Based on net assets of $446,869,865 and 38,848,543 shares outstanding $ 11.50 =============== Class I--Based on net assets of $700,102,967 and 60,882,471 shares outstanding $ 11.50 =============== Class R--Based on net assets of $37,838,349 and 3,288,206 shares outstanding $ 11.51 =============== +++ Effective October 2, 2006, Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statement of Operations BlackRock Bond Fund For the Year Ended September 30, 2006 Investment Income Net investment income allocated from the Master Portfolio: Interest $ 96,545,875 Securities lending--net 513,405 Dividends 474,392 Expenses (2,250,376) --------------- Total income 95,283,296 --------------- Expenses Investment advisory fees $ 7,170,155 Account maintenance and distribution fees--Class C* 3,149,400 Account maintenance and distribution fees--Class B* 2,066,698 Account maintenance fees--Class A* 1,399,581 Transfer agent fees--Class I* 1,158,128 Transfer agent fees--Class A* 969,921 Transfer agent fees--Class C* 775,824 Transfer agent fees--Class B* 545,228 Account maintenance and distribution fees--Class R 166,103 Printing and shareholder reports 137,665 Registration fees 118,347 Transfer agent fees--Class R 57,373 Professional fees 32,303 Other 20,057 --------------- Total expenses before waiver 17,766,783 Waiver of expenses (1,283,411) --------------- Total expenses after waiver 16,483,372 --------------- Investment income--net 78,799,924 --------------- Realized & Unrealized Gain (Loss) Allocated from the Master Portfolio--Net Realized loss on investments, financial futures contracts, swaps, foreign currency transactions, short sales and options written--net (25,215,213) Change in unrealized appreciation/depreciation on investments, financial futures contracts, swaps, foreign currency transactions and options written--net 4,743,094 --------------- Total realized and unrealized loss--net (20,472,119) --------------- Net Increase in Net Assets Resulting from Operations $ 58,327,805 =============== * Effective October 2, 2006, Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statements of Changes in Net Assets BlackRock Bond Fund For the Year Ended September 30, Increase (Decrease) in Net Assets: 2006 2005 Operations Investment income--net $ 78,799,924 $ 54,578,615 Realized gain (loss)--net (25,215,213) 10,753,875 Change in unrealized appreciation/depreciation--net 4,743,094 (23,100,353) --------------- --------------- Net increase in net assets resulting from operations 58,327,805 42,232,137 --------------- --------------- Dividends to Shareholders** Investment income--net: Class A (25,610,838) (18,788,805) Class B (11,168,766) (10,552,895) Class C (15,660,465) (8,357,501) Class I (32,593,771) (27,408,790) Class R (1,426,041) (706,809) --------------- --------------- Net decrease in net assets resulting from dividends to shareholders (86,459,881) (65,814,800) --------------- --------------- Capital Share Transactions Net increase in net assets derived from capital share transactions 129,269,937 300,568,513 --------------- --------------- Net Assets Total increase in net assets 101,137,861 276,985,850 Beginning of year 1,933,923,030 1,656,937,180 --------------- --------------- End of year* $ 2,035,060,891 $ 1,933,923,030 =============== =============== * Undistributed (accumulated distributions in excess of) investment income--net $ (4,103,401) $ 7,388,887 =============== =============== ** Effective October 2, 2006, Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Financial Highlights BlackRock Bond Fund The following per share data and ratios have been derived from information Class A** Class B** provided in the financial For the Year Ended September 30, For the Year Ended September 30, statements. 2006 2005 2004++++ 2003 2002 2006 2005 2004++++ 2003 2002 Per Share Operating Performance Net asset value, beginning of year $ 11.68 $ 11.83 $ 11.73 $ 11.52 $ 11.21 $ 11.67 $ 11.83 $ 11.73 $ 11.52 $ 11.21 ----------------------------------------------------------- ---------------------------------------------------------- Investment income--net .47++ .37++ .34++ .39++ .50 .41++ .30++ .27++ .34++ .44 Realized and unrealized gain (loss)--net (.07) (.08) .07 .23 .31 (.07) (.11) .08 .22 .31 ----------------------------------------------------------- ---------------------------------------------------------- Total from investment operations .40 .29 .41 .62 .81 .34 .19 .35 .56 .75 ----------------------------------------------------------- ---------------------------------------------------------- Less dividends from investment income--net (.57) (.44) (.31) (.41) (.50) (.51) (.35) (.25) (.35) (.44) ----------------------------------------------------------- ---------------------------------------------------------- Net asset value, end of year $ 11.51 $ 11.68 $ 11.83 $ 11.73 $ 11.52 $ 11.50 $ 11.67 $ 11.83 $ 11.73 $ 11.52 =========================================================== ========================================================== Total Investment Return* Based on net asset value per share 3.13% 2.46% 3.58% 5.51% 7.44% 2.60% 1.84% 3.04% 4.96% 6.89% =========================================================== ========================================================== Ratios to Average Net Assets Expenses, net of waiver .86%+++ .85%+++ .85%+++ .85% .84% 1.38%+++ 1.37%+++ 1.36%+++ 1.36% 1.36% =========================================================== ========================================================== Expenses .92%+++ .92%+++ .89%+++ .85% .84% 1.45%+++ 1.44%+++ 1.47%+++ 1.36% 1.36% =========================================================== ========================================================== Investment income--net 4.17%+++ 3.08%+++ 2.65%+++ 3.39% 4.43% 3.60%+++ 2.54%+++ 2.14%+++ 2.94% 3.93% =========================================================== ========================================================== Supplemental Data Net assets, end of year (in thousands)$ 600,847 $ 563,606 $ 426,393 $ 484,030 $ 286,726 $ 249,403 $ 308,944 $ 344,585 $449,985 $487,746 =========================================================== ========================================================== Portfolio turnover 207.94%+++++ 234.92%+++++ 258.01%+++++ 287.00% 281.67% 207.94%+++++ 234.92%+++++ 258.01%+++++ 287.00% 281.67% =========================================================== ========================================================== * Total investment returns exclude the effects of sales charges. ** Effective October 2, 2006, Class A and Class B Shares were redesignated Investor A and Investor B Shares, respectively. ++ Based on average shares outstanding. ++++ On October 1, 2003, the Fund converted from a stand-alone investment company to a "feeder" fund that seeks to achieve its investment objective by investing all of its assets in the Master Portfolio, which has the same investment objective as the Fund. All investments will be made at the Master Portfolio level. This structure is sometimes called a "master/feeder" structure. +++ Includes the Fund's share of the Master Portfolio's allocated expenses and/or investment income--net. +++++ Portfolio turnover for the Master Portfolio. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Financial Highlights (continued) BlackRock Bond Fund The following per share data and ratios have been derived from information Class C** Class I** provided in the financial For the Year Ended September 30, For the Year Ended September 30, statements. 2006 2005 2004++++ 2003 2002 2006 2005 2004++++ 2003 2002 Per Share Operating Performance Net asset value, beginning of year $ 11.68 $ 11.83 $ 11.73 $ 11.52 $ 11.21 $ 11.67 $ 11.83 $ 11.73 $ 11.52 $ 11.21 ----------------------------------------------------------- ---------------------------------------------------------- Investment income--net .41++ .30++ .26++ .33++ .43 .50++ .39++ .37++ .43++ .53 Realized and unrealized gain (loss)--net (.09) (.08) .09 .23 .31 (.07) (.07) .07 .22 .31 ----------------------------------------------------------- ---------------------------------------------------------- Total from Investment operations .32 .22 .35 .56 .74 .43 .32 .44 .65 .84 ----------------------------------------------------------- ---------------------------------------------------------- Less dividends from investment income--net (.50) (.37) (.25) (.35) (.43) (.60) (.48) (.34) (.44) (.53) ----------------------------------------------------------- ---------------------------------------------------------- Net asset value, end of year $ 11.50 $ 11.68 $ 11.83 $ 11.73 $ 11.52 $ 11.50 $ 11.67 $ 11.83 $ 11.73 $ 11.52 =========================================================== ========================================================== Total Investment Return* Based on net asset value per share 2.46% 1.88% 2.99% 4.91% 6.83% 3.39% 2.63% 3.84% 5.77% 7.71% =========================================================== ========================================================== Ratios to Average Net Assets Expenses, net of waiver 1.43%+++ 1.42%+++ 1.39%+++ 1.42% 1.42% .61%+++ .60%+++ .60%+++ .60% .59% =========================================================== ========================================================== Expenses 1.50%+++ 1.49%+++ 1.39%+++ 1.42% 1.42% .67%+++ .67%+++ .68%+++ .60% .59% =========================================================== ========================================================== Investment income--net 3.63%+++ 2.52%+++ 2.12%+++ 2.86% 3.85% 4.42%+++ 3.32%+++ 2.90%+++ 3.67% 4.68% =========================================================== ========================================================== Supplemental Data Net assets, end of year (in thousands)$ 446,870 $ 343,060 $ 188,416 $ 131,739 $ 110,065 $ 700,103 $ 690,854 $ 683,828 $ 823,981 $ 645,820 =========================================================== ========================================================== Portfolio turnover 207.94%+++++ 234.92%+++++ 258.01%+++++ 287.00% 281.67% 207.94%+++++ 234.92%+++++ 258.01%+++++ 287.00% 281.67% =========================================================== ========================================================== * Total investment returns exclude the effects of sales charges. Effective December 28, 2005, Class I Shares are no longer subject to any front-end sales charges. ** Effective October 2, 2006, Class C and Class I Shares were redesignated Investor C1 and Institutional Shares, respectively. ++ Based on average shares outstanding. ++++ On October 1, 2003, the Fund converted from a stand-alone investment company to a "feeder" fund that seeks to achieve its investment objective by investing all of its assets in the Master Portfolio, which has the same investment objective as the Fund. All investments will be made at the Master Portfolio level. This structure is sometimes called a "master/feeder" structure. +++ Includes the Fund's share of the Master Portfolio's allocated expenses and/or investment income--net. +++++ Portfolio turnover for the Master Portfolio. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Financial Highlights (concluded) BlackRock Bond Fund Class R For the Period January 3, 2003++ to The following per share data and ratios have been derived For the Year Ended September 30, September 30, from information provided in the financial statements. 2006 2005 2004++++ 2003 Per Share Operating Performance Net asset value, beginning of period $ 11.68 $ 11.84 $ 11.74 $ 11.49 --------------- --------------- --------------- --------------- Investment income--net** .45 .34 .32 .21 Realized and unrealized gain (loss)--net (.07) (.08) .07 .35 --------------- --------------- --------------- --------------- Total from investment operations .38 .26 .39 .56 --------------- --------------- --------------- --------------- Less dividends from investment income--net (.55) (.42) (.29) (.31) --------------- --------------- --------------- --------------- Net asset value, end of period $ 11.51 $ 11.68 $ 11.84 $ 11.74 =============== =============== =============== =============== Total Investment Return Based on net asset value per share 2.88% 2.12% 3.39% 4.97%+++ =============== =============== =============== =============== Ratios to Average Net Assets Expenses, net of waiver 1.11%+++++ 1.10%+++++ .78%+++++ 1.11%* =============== =============== =============== =============== Expenses 1.17%+++++ 1.17%+++++ .78%+++++ 1.11%* =============== =============== =============== =============== Investment income--net 3.96%+++++ 2.85%+++++ 2.70%+++++ 2.37%* =============== =============== =============== =============== Supplemental Data Net assets, end of period (in thousands) $ 37,838 $ 27,460 $ 13,716 $ 46 =============== =============== =============== =============== Portfolio turnover 207.94%++++++++ 234.92%++++++++ 258.01%++++++++ 287.00% =============== =============== =============== =============== * Annualized. ** Based on average shares outstanding. ++ Commencement of operations. ++++ On October 1, 2003, the Fund converted from a stand-alone investment company to a "feeder" fund that seeks to achieve its investment objective by investing all of its assets in the Master Portfolio, which has the same investment objective as the Fund. All investments will be made at the Master Portfolio level. This structure is sometimes called a "master/feeder" structure. +++ Aggregate total investment return. +++++ Includes the Fund's share of the Master Portfolio's allocated expenses and/or investment income--net. ++++++++ Portfolio turnover for the Master Portfolio. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements BlackRock Bond Fund 1. Significant Accounting Policies: On September 29, 2006, Core Bond Portfolio (the "ML Fund") and Merrill Lynch Bond Fund, Inc., which the ML Fund is a part of, were renamed BlackRock Bond Fund (the "Fund") and BlackRock Bond Fund, Inc. (the "Bond Fund"), respectively. The Bond Fund is registered under the Investment Company Act of 1940, as amended, as a diversified, open-end management investment company. The Fund seeks to achieve its investment objective by investing all of its assets in Master Core Bond Portfolio which was renamed on September 29, 2006, Master Bond Portfolio (the "Master Portfolio"), of Master Bond Trust, a mutual fund that has the same investment objective and strategies as the Fund. The value of the Fund's investment in the Master Portfolio reflects the Fund's proportionate interest in the net assets of the Master Portfolio. The performance of the Fund is directly affected by the performance of the Master Portfolio. The financial statements of the Master Portfolio, including the Schedule of Investments, are included elsewhere in this report and should be read in conjunction with the Fund's financial statements. The Fund's financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. The percentage of the Master Portfolio owned by the Fund at September 30, 2006 was 70.3%. The Fund offers multiple classes of shares. Class A Shares are sold with a front-end sales charge. Shares of Class B and Class C may be subject to a contingent deferred sales charge. Class I Shares are sold only to certain eligible investors. Class R Shares are sold only to certain retirement plans. All classes of shares have identical voting, dividend, liquidation and other rights and the same terms and conditions, except that Class A, Class B, Class C and Class R Shares bear certain expenses related to the account maintenance of such shares, and Class B, Class C and Class R Shares also bear certain expenses related to the distribution of such shares. Each class has exclusive voting rights with respect to matters relating to its account maintenance and distribution expenditures (except that Class B shareholders may vote on certain changes to the Class A distribution plan). Effective October 2, 2006, Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. Class R Shares were not redesignated. Income, expenses (other than expenses attributable to a specific class) and realized and unrealized gains and losses are allocated daily to each class based on its relative net assets. The following is a summary of significant accounting policies followed by the Fund. (a) Valuation of investments--The Fund records its investment in the Master Portfolio at fair value. Valuation of securities held by the Master Portfolio is discussed in Note 1(a) of the Master Portfolio's Notes to Financial Statements, which is included elsewhere in this report. (b) Investment income and expenses--The Fund records daily its proportionate share of the Master Portfolio's income, expenses and realized and unrealized gains and losses. In addition, the Fund accrues its own expenses. (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) Recent accounting pronouncement--In July 2006, the Financial Accounting Standards Board ("FASB") issued Interpretation No. 48 ("FIN 48") entitled "Accounting for Uncertainty in Income Taxes--an interpretation of FASB Statement No. 109." FIN 48 prescribes the minimum recognition threshold a tax position must meet in connection with accounting for uncertainties in income tax positions taken or expected to be taken by an entity including mutual funds before being measured and recognized in the financial statements. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006. The impact on the Fund's financial statements, if any, is currently being assessed. (e) Prepaid registration fees--Prepaid registration fees are charged to expense as the related shares are issued. (f) Dividends and distributions--Dividends from net investment income are declared daily and paid monthly. Distributions of capital gains are recorded on the ex-dividend dates. (g) Investment transactions--Investment transactions in the Master Portfolio are accounted for on a trade date basis. (h) Expenses--Certain expenses have been allocated to the individual funds in the Bond Fund on a pro rata basis based upon the respective aggregate net asset value of each fund included in the Bond Fund. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (continued) BlackRock Bond Fund (i) Reclassification--U.S. generally accepted accounting principles require that certain components of net assets be adjusted to reflect permanent differences between financial and tax reporting. Accordingly, during the current year, $3,832,331 has been reclassified between accumulated distributions in excess of net investment income and accumulated net realized capital losses allocated from the Master Portfolio as a result of permanent differences attributable to accounting for swap agreements, accounting for principal paydowns, foreign currency transactions and amortization methods on fixed income securities. This reclassification has no effect on net assets or net asset values per share. 2. Transactions with Affiliates: The Bond 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 Funds and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Bond Fund. For such services, FAM receives, at the end of each month, a fee with respect to each Fund at the annual rates set forth below which are based upon the aggregate average daily value of the Bond Fund's net assets at the following annual rates: .50% of the Bond Fund's average daily net assets not exceeding $250 million; .45% of the average daily net assets in excess of $250 million but not exceeding $500 million; .40% of average daily net assets in excess of $500 million but not exceeding $750 million; and .35% of average daily net assets in excess of $750 million. For the year ended September 30, 2006, the aggregate average daily net assets of the Bond Fund, including the Bond Fund's BlackRock High Income Fund (formerly High Income Portfolio of Merrill Lynch Bond Fund, Inc.) and BlackRock Intermediate Term Fund (formerly Intermediate Bond Fund of Merrill Lynch Bond Fund, Inc.) was approximately $3,794,317,000. FAM has contractually agreed to waive the Fund's investment advisory fee in the amount of the Fund's share of the investment advisory fee paid by the Master Portfolio. For the year ended September 30, 2006, FAM earned fees of $7,170,155 of which $1,283,411 were waived. FAM has entered into a Sub- Advisory Agreement with Merrill Lynch Asset Management U.K. Limited ("MLAM U.K."), an affiliate of FAM, pursuant to which MLAM U.K. provides investment advisory services to FAM with respect to the Bond Fund. There is no increase in the aggregate fees paid by the Bond Fund for these services. The Bond Fund has also entered into a Distribution Agreement and Distribution Plan with FAM Distributors, Inc. ("FAMD" or the "Distributor"), a wholly owned subsidiary of Merrill Lynch Group, Inc. Pursuant to the Distribution Plan adopted by the Bond Fund in accordance with Rule 12b-1 under the Investment Company Act of 1940, the Fund pays the Distributor ongoing account maintenance and distribution fees. The fees are accrued daily and paid monthly at annual rates based upon the average daily net assets of the shares as follows: Account Maintenance Distribution Fee Fee Class A .25% -- Class B .25% .50% Class C .25% .55% Class R .25% .25% Pursuant to a sub-agreement with the Distributor, Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), an affiliate of FAM, also provides account maintenance and distribution services to the Bond Fund. The ongoing account maintenance fee compensates the Distributor and MLPF&S for providing account maintenance services to Class A, Class B, Class C and Class R shareholders. The ongoing distribution fee compensates the Distributor and MLPF&S for providing shareholder and distribution-related services to Class B, Class C and Class R shareholders. For the year ended September 30, 2006, FAMD earned underwriting discounts and direct commissions and MLPF&S earned dealer concessions on sales of the Fund's Class A and Class I Shares as follows: FAMD MLPF&S Class A $ 90,953 $ 855,400 Class I $ 20,247 $ 123,393 For the year ended September 30, 2006, MLPF&S received contingent deferred sales charges of $191,479 and $84,238 relating to transactions in Class B and Class C Shares, respectively. Furthermore, MLPF&S received contingent deferred sales charges of $305 relating to transactions subject to front-end sales charge waivers in Class A Shares. Financial Data Services, Inc. ("FDS"), a wholly owned subsidiary of ML & Co., is the Fund's transfer agent. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (continued) BlackRock Bond Fund In February 2006, ML & Co. and BlackRock, Inc. entered into an agreement to contribute ML & Co.'s investment management business, including FAM, to the investment management business of BlackRock, Inc. The transaction closed on September 29, 2006. On August 15, 2006, shareholders of the Fund approved a new Investment Advisory Agreement for the Bond Fund and the Master Portfolio, with BlackRock Advisors, Inc. (the "Manager"), a wholly owned subsidiary of BlackRock, Inc. BlackRock Advisors, Inc. was reorganized into BlackRock Advisors, LLC. The new advisory agreement became effective on September 29, 2006 and the investment advisory fee is unchanged. In connection with the closing, the Fund's Transfer Agent became PFPC, Inc., an affiliate of the Manager. In addition, BlackRock Distributors, Inc., an affiliate of BlackRock, Inc., became an additional distributor. Prior to the closing, certain officers and/or directors of the Bond Fund are officers and/or directors of FAM, PSI, MLAM UK, FAMD, FDS, and/or ML & Co. Commencing September 29, 2006, certain officers and/or directors of the Bond Fund are officers and/or directors of BlackRock, Inc. or its affiliates. 3. Capital Share Transactions: Net increase in net assets derived from capital share transactions was $129,269,937 and $300,568,513 for the years ended September 30, 2006 and September 30, 2005, respectively. Effective October 2, 2006, Class A, Class B, Class C and Class I Shares were redesignated Investor A, Investor B, Investor C1 and Institutional Shares, respectively. Class R Shares were not redesignated. Transactions in capital shares for each class were as follows: Class A Shares for the Year Dollar Ended September 30, 2006 Shares Amount Shares sold 16,972,405 $ 194,072,215 Automatic conversion of shares 1,870,912 21,438,141 Shares issued to shareholders in reinvestment of dividends 1,579,698 18,086,007 --------------- --------------- Total issued 20,423,015 233,596,363 Shares redeemed (16,453,089) (188,159,675) --------------- --------------- Net increase 3,969,926 $ 45,436,688 =============== =============== Class A Shares for the Year Dollar Ended September 30, 2005 Shares Amount Shares sold 20,905,660 $ 245,781,409 Automatic conversion of shares 1,447,307 17,058,681 Shares issued to shareholders in reinvestment of dividends 1,085,827 12,794,431 --------------- --------------- Total issued 23,438,794 275,634,521 Shares redeemed (11,219,888) (132,159,272) --------------- --------------- Net increase 12,218,906 $ 143,475,249 =============== =============== Class B Shares for the Year Dollar Ended September 30, 2006 Shares Amount Shares sold 4,599,227 $ 52,626,057 Shares issued to shareholders in reinvestment of dividends 751,108 8,596,874 --------------- --------------- Total issued 5,350,335 61,222,931 --------------- --------------- Automatic conversion of shares (1,872,112) (21,438,141) Shares redeemed (8,254,583) (94,409,523) --------------- --------------- Total redeemed (10,126,695) (115,847,664) --------------- --------------- Net decrease (4,776,360) $ (54,624,733) =============== =============== Class B Shares for the Year Dollar Ended September 30, 2005 Shares Amount Shares sold 6,699,065 $ 78,957,081 Shares issued to shareholders in reinvestment of dividends 663,930 7,822,569 --------------- --------------- Total issued 7,362,995 86,779,650 --------------- --------------- Automatic conversion of shares (1,448,349) (17,058,681) Shares redeemed (8,586,115) (101,193,823) --------------- --------------- Total redeemed (10,034,464) (118,252,504) --------------- --------------- Net decrease (2,671,469) $ (31,472,854) =============== =============== Class C Shares for the Year Dollar Ended September 30, 2006 Shares Amount Shares sold 15,402,885 $ 176,203,833 Shares issued to shareholders in reinvestment of dividends 1,142,653 13,067,235 --------------- --------------- Total issued 16,545,538 189,271,068 Shares redeemed (7,071,636) (80,734,523) --------------- --------------- Net increase 9,473,902 $ 108,536,545 =============== =============== BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (concluded) BlackRock Bond Fund Class C Shares for the Year Dollar Ended September 30, 2005 Shares Amount Shares sold 17,528,641 $ 206,659,943 Shares issued to shareholders in reinvestment of dividends 557,630 6,568,541 --------------- --------------- Total issued 18,086,271 213,228,484 Shares redeemed (4,638,791) (54,689,966) --------------- --------------- Net increase 13,447,480 $ 158,538,518 =============== =============== Class I Shares for the Year Dollar Ended September 30, 2006 Shares Amount Shares sold 15,640,780 $ 178,724,066 Shares issued to shareholders in reinvestment of dividends 911,041 10,418,819 --------------- --------------- Total issued 16,551,821 189,142,885 Shares redeemed (14,848,369) (170,034,152) --------------- --------------- Net increase 1,703,452 $ 19,108,733 =============== =============== Class I Shares for the Year Dollar Ended September 30, 2005 Shares Amount Shares sold 13,599,517 $ 160,238,065 Shares issued to shareholders in reinvestment of dividends 736,001 8,671,445 --------------- --------------- Total issued 14,335,518 168,909,510 Shares redeemed (12,978,398) (152,923,772) --------------- --------------- Net increase 1,357,120 $ 15,985,738 =============== =============== Class R Shares for the Year Dollar Ended September 30, 2006 Shares Amount Shares sold 2,071,808 $ 23,789,947 Shares issued to shareholders in reinvestment of dividends 116,456 1,332,089 --------------- --------------- Total issued 2,188,264 25,122,036 Shares redeemed (1,250,270) (14,309,332) --------------- --------------- Net increase 937,994 $ 10,812,704 =============== =============== Class R Shares for the Year Dollar Ended September 30, 2005 Shares Amount Shares sold 1,981,579 $ 23,372,004 Shares issued to shareholders in reinvestment of dividends 55,175 650,293 --------------- --------------- Total issued 2,036,754 24,022,297 Shares redeemed (845,469) (9,980,435) --------------- --------------- Net increase 1,191,285 $ 14,041,862 =============== =============== 4. Distributions to Shareholders: The tax character of distributions paid during the fiscal years ended September 30, 2006 and September 30, 2005 was as follows: 9/30/2006 9/30/2005 Distributions paid from: Ordinary income $ 86,459,881 $ 65,814,800 --------------- --------------- Total taxable distributions $ 86,459,881 $ 65,814,800 =============== =============== As of September 30, 2006, the components of accumulated losses on a tax basis were as follows: Accumulated distributions in excess of investment income--net $ (698,268) Undistributed long-term capital gains--net -- --------------- Accumulated distributions in excess of investment income--net (698,268) Capital loss carryforward (15,296,383)* Unrealized gains--net (22,402,566)** --------------- Total accumulated losses--net $ (38,397,217) =============== * On September 30, 2006, the Fund had a net capital loss carry- forward of $15,296,383, of which $2,086,933 expires in 2007, $392,843 expires in 2008 and $12,816,607 expires in 2009. This amount will be available to offset like amounts of any future taxable gains. ** The difference between book-basis and tax-basis net unrealized losses is attributable primarily to the tax deferral of losses on wash sales, the tax deferral of losses on straddles, the realization for tax purposes of unrealized gains (losses) on certain futures and forward foreign currency contracts, the difference between book and tax amortization methods for premiums and discounts on fixed income securities, the realization for tax purposes of unrealized gains on investments in passive foreign investment companies, the deferral of post-October capital losses for tax purposes and other book/tax temporary differences. 5. Acquisition of BlackRock Intermediate Term Fund of BlackRock Bond Fund, Inc.: On October 16, 2006, the Fund acquired all of the net assets of BlackRock Intermediate Term Fund of BlackRock Bond Fund, Inc. pursuant to a plan of reorganization. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Report of Independent Registered Public Accounting Firm BlackRock Bond Fund To the Shareholders and Board of Directors of BlackRock Bond Fund, Inc.: We have audited the accompanying statement of assets and liabilities of BlackRock Bond Fund, one of the portfolios constituting BlackRock Bond Fund, Inc. (the "Fund"), formerly Core Bond Portfolio of Merrill Lynch Bond Fund, Inc., as of September 30, 2006 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 the standards of the Public Company Accounting Oversight Board (United States). 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. The Fund is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, 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 BlackRock Bond Fund of BlackRock Bond Fund, Inc. as of September 30, 2006, 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 U.S. generally accepted accounting principles. Deloitte & Touche LLP Princeton, New Jersey November 22, 2006 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Portfolio Information as of September 30, 2006 Master Bond Portfolio Percent of Total Asset Mix Investments Government & Agency Obligations 18.1% Corporate Bonds 14.3 Asset-Backed Securities 11.9 Government Agency Mortgage-Backed Securities 11.4 Non-Government Agency Mortgage-Backed Securities 8.5 Foreign Government Obligations 1.2 Preferred Securities 1.1 Other* 33.5 * Includes portfolio holdings in short-term investments and options. Percent of Quality Ratings by Total S&P/Moody's Investments AAA/Aaa 46.4% AA/Aa 5.8 A/A 4.4 BBB/Baa 6.5 BB/Ba 0.8 B/B 0.5 NR (Not Rated) 1.8 Other* 33.8 * Includes portfolio holdings in preferred stocks, options and short-term investments. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments Master Bond Portfolio (in U.S. dollars) Face Amount Asset-Backed Securities++ Value ACE Securities Corp. (b): USD 1,165,298 Series 2003-OP1 Class A2, 5.69% due 12/25/2033 $ 1,166,118 9,653,000 Series 2005-ASP1 Class M1, 6.01% due 9/25/2035 9,729,444 25,050,000 Series 2005-HE6 Class A2B, 5.53% due 10/25/2035 25,059,754 457,010 Aegis Asset Backed Securities Trust Series 2004-1 Class A, 5.68% due 4/25/2034 (b) 457,083 4,339,200 Altius Funding Ltd. Series 2005-2A Class D, 8.071% due 12/05/2040 (a)(b) 4,339,200 Ameriquest Mortgage Securities, Inc. (b): 10,075,000 Series 2003-7 Class M1, 6.18% due 8/25/2033 10,169,526 7,550,000 Series 2004-R1 Class M2, 5.91% due 2/25/2034 7,575,889 3,472,164 Argent Securities, Inc. Series 2004-W11 Class A3, 5.69% due 11/25/2034 (b) 3,473,677 Bear Stearns Asset Backed Securities, Inc. (b): 1,661,634 Series 2004-HE9 Class 1A2, 5.70% due 3/25/2032 1,662,337 12,381,708 Series 2005-4 Class A, 5.66% due 1/25/2036 12,388,332 25,300,000 Series 2005-HE10 Class A2, 5.62% due 8/25/2035 25,368,085 9,857,000 Series 2005-SD1 Class 1A2, 5.63% due 7/25/2027 9,880,765 2,630,000 Buckingham CDO Ltd. Series 2005-2A Class E, 8.321% due 4/05/2041 (a)(b) 2,603,700 Capital Auto Receivables Asset Trust: 576,576 Series 2003-2 Class B, 5.61% due 1/15/2009 (b) 576,636 4,150,000 Series 2004-2 Class D, 5.82% due 5/15/2012 (a) 4,095,267 Countrywide Asset Backed Certificates (b): 7,963,561 Series 2003-2 Class M1, 6.028% due 6/26/2033 7,975,544 769,233 Series 2003-BC3 Class A2, 5.64% due 9/25/2033 769,734 3,866,299 Series 2004-5 Class A, 5.78% due 10/25/2034 3,901,174 7,550,000 Series 2004-5 Class M2, 6% due 7/25/2034 7,609,976 8,950,000 Series 2004-13 Class AF4, 4.583% due 1/25/2033 8,819,924 9,365,000 Series 2004-13 Class MF1, 5.071% due 12/25/2034 9,158,000 9,200,000 Credit-Based Asset Servicing and Securitization Series 2005-CB2 Class AV2, 5.53% due 4/25/2036 (b) 9,203,230 5,400,000 Duke Funding High Grade II-S/EGAM, Ltd. Series 2006-1A Class D, 8.32% due 10/04/2050 (a)(b) 5,400,000 13,036,000 Equifirst Mortgage Loan Trust Series 2004-2 Class M1, 5.88% due 7/25/2034 (b) 13,118,549 Face Amount Asset-Backed Securities++ Value First Franklin Mortgage Loan Asset Backed Certificates (b): USD 225,332 Series 2003-FF5 Class A2, 6.052% due 3/25/2034 $ 224,532 11,087,547 Series 2004-FF10 Class A2, 5.73% due 12/25/2032 11,112,827 20,517,437 Series 2005-FF10 Class A6, 5.68% due 11/25/2035 20,535,645 13,500,000 GE Dealer Floorplan Master Note Trust Series 2004-2 Class B, 5.62% due 7/20/2009 (b) 13,516,218 Home Equity Asset Trust (b): 7,850,919 Series 2005-1 Class A2, 5.61% due 5/25/2035 7,866,443 5,352,317 Series 2005-3 Class 1A2, 5.58% due 8/25/2035 5,354,759 7,931,182 Irwin Home Equity Series 2005-C Class 1A1, 5.59% due 4/25/2030 (b) 7,934,065 Long Beach Mortgage Loan Trust (b): 1,574,413 Series 2002-4 Class 2A, 5.79% due 11/26/2032 1,575,341 716,979 Series 2004-1 Class A3, 5.63% due 2/25/2034 717,144 Morgan Stanley ABS Capital I, Inc. (b): 4,892,329 Series 2003-NC5 Class M2, 7.33% due 4/25/2033 4,914,421 1,639,584 Series 2004-NC1 Class A2, 5.70% due 12/27/2033 1,640,126 9,888,032 Series 2005-HE1 Class A2MZ, 5.63% due 12/25/2034 9,910,411 3,162,755 Series 2005-NC2 Class A1MZ, 5.58% due 3/25/2035 3,164,416 3,227,927 Series 2005-NC2 Class A2MZ, 5.58% due 3/25/2035 3,229,614 New Century Home Equity Loan Trust (b): 4,598,925 Series 2004-3 Class A3, 5.72% due 11/25/2034 4,602,885 10,213,876 Series 2005-2 Class A2MZ, 5.59% due 6/25/2035 10,228,538 Option One Mortgage Loan Trust (b): 2,446,930 Series 2003-4 Class A2, 5.65% due 7/25/2033 2,453,305 3,050,000 Series 2005-1 Class M5, 6.58% due 2/25/2035 3,079,852 Park Place Securities, Inc. Series 2005-WCH1 (b): 4,145,722 Class A1B, 5.63% due 1/25/2035 4,152,146 3,465,175 Class A3D, 5.67% due 1/25/2035 3,470,831 3,470,000 Popular ABS Mortgage Pass-Through Trust Series 2005-1 Class M2, 5.507% due 5/25/2035 3,404,985 17,889,198 RAAC Series 2005-SP2 Class 2A, 5.63% due 6/25/2044 (b) 17,907,510 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Face Amount Asset-Backed Securities++ Value Residential Asset Mortgage Products, Inc. (b): USD 14,695,265 Series 2004-RS11 Class A2, 5.60% due 12/25/2033 $ 14,728,783 12,300,000 Series 2005-RS3 Class AI2, 5.50% due 3/25/2035 12,325,561 3,244,031 Residential Asset Securities Corp. Series 2003-KS5 Class AIIB, 5.62% due 7/25/2033 (b) 3,245,391 21,500,000 Soundview Home Equity Loan Trust Series 2005-OPT3 Class A4, 5.63% due 11/25/2035 (b) 21,554,851 Structured Asset Investment Loan Trust (b): 14,750,000 Series 2003-BC6 Class M1, 6.08% due 7/25/2033 14,805,464 14,550,000 Series 2003-BC7 Class M1, 6.08% due 7/25/2033 14,604,226 4,897,000 Series 2004-8 Class M4, 6.33% due 9/25/2034 4,924,724 4,855,994 Structured Asset Securities Corp. Series 2004-23XS Class 2A1, 4.55% due 1/25/2035 (b) 4,867,779 6,970,748 Wells Fargo Home Equity Trust Series 2004-2 Class A32, 5.67% due 2/25/2032 (b) 6,982,799 836,632 Whole Auto Loan Trust Series 2004-1 Class D, 5.60% due 3/15/2011 834,590 Total Asset-Backed Securities (Cost--$424,347,280)--14.6% 424,372,126 Government & Agency Obligations Fannie Mae: 46,913,000 4% due 2/28/2007 46,664,596 21,400,000 7.125% due 1/15/2030 27,068,817 15,400,000 Federal Home Loan Bank System, 2.75% due 11/15/2006 15,352,014 U.S. Treasury Bonds: 3,175,000 7.50% due 11/15/2016 3,889,375 1,935,000 8.125% due 8/15/2019 2,551,781 6,745,000 7.25% due 8/15/2022 (i) 8,537,167 1,395,000 6.25% due 8/15/2023 1,619,617 1,395,000 6.625% due 2/15/2027 1,715,415 45,120,000 5.375% due 2/15/2031 (j) 48,733,119 19,060,000 4.50% due 2/15/2036 (j) 18,263,349 U.S. Treasury Inflation Indexed Bonds: 15,651,536 3.875% due 1/15/2009 16,100,907 13,706,642 3.50% due 1/15/2011 14,356,639 32,605,524 1.625% due 1/15/2015 31,013,461 U.S. Treasury Notes: 205,000,000 4% due 8/31/2007 (j) 203,262,215 386,000 4.375% due 1/31/2008 383,708 995,000 3.75% due 5/15/2008 979,492 6,425,000 4.50% due 2/15/2009 (j) 6,402,159 5,190,000 4.875% due 5/15/2009 5,220,003 3,300,000 4.875% due 8/15/2009 3,322,430 Face Amount Government & Agency Obligations Value U.S. Treasury Notes (concluded): USD 1,580,000 3.875% due 5/15/2010 $ 1,542,783 3,030,000 3.625% due 6/15/2010 2,932,828 685,000 4.125% due 8/15/2010 673,735 583,000 4.25% due 10/15/2010 575,758 43,160,000 4.25% due 1/15/2011 (j) 42,571,600 550,000 5% due 2/15/2011 559,732 10,190,000 4.50% due 2/28/2011 (j) 10,151,788 29,395,000 4.625% due 8/31/2011 (j) 29,427,158 6,320,000 3.625% due 5/15/2013 5,971,414 30,690,000 4.50% due 11/15/2015 (j) 30,392,675 28,155,000 4.50% due 2/15/2016 27,872,352 80,000 5.125% due 5/15/2016 82,988 40,025,000 4.875% due 8/15/2016 (j) 40,781,713 Total Government & Agency Obligations (Cost--$642,237,078)--22.4% 648,972,788 Government Agency Mortgage-Backed Securities++ Fannie Mae Guaranteed Pass-Through Certificates: 12,688,468 5.00% due 9/01/2035 - 10/01/2035 12,200,177 79,409,000 5.50% due 10/15/2036 (k) 78,217,865 18,600,000 6.00% due 10/01/2036 18,685,785 8,935,852 6.50% due 12/01/2028 - 9/01/2036 9,126,065 Freddie Mac Mortgage Participation Certificates: 135,701,467 5.00% due 10/15/2036 (k) 130,485,374 38,811,289 5.50% due 1/01/2021 - 2/01/2021 38,798,645 113,508,828 5.50% due 1/01/2035 - 10/15/2036 (k) 111,938,326 906,010 6.00% due 5/01/2035 910,987 3,085,518 7.00% due 2/01/2031 - 4/01/2032 3,178,722 Ginnie Mae MBS Certificates: 2,818,331 6.50% due 4/15/2032 2,894,529 644,315 7.50% due 4/15/2031 - 3/15/2032 670,649 Total Government Agency Mortgage-Backed Securities (Cost--$405,858,455)--14.0% 407,107,124 Non-Government Agency Mortgage-Backed Securities++ Collateralized Mortgage Obligations--3.4% 16,336 BlackRock Capital Finance LP Series 1997-R2 Class AP, 8.017% due 12/25/2035 (a)(b)(d) 16,336 29,909 Collateralized Mortgage Obligation Trust Series 57 Class D, 9.90% due 2/01/2019 30,110 Impac Secured Assets CMN Owner Trust Series 2004-3 (b): 8,172,078 Class 1A4, 5.73% due 11/25/2034 8,196,113 10,300,000 Class M1, 5.93% due 11/25/2034 10,337,961 15,398,669 JPMorgan Mortgage Trust Series 2005-A2 Class 4A1, 5.209% due 4/25/2035 (b) 15,064,287 13,586,747 Morgan Stanley Mortgage Loan Trust Series 2006-3AR Class 2A3, 5.907% due 3/25/2036 (b) 13,709,517 59,915 Ocwen Residential MBS Corp. Series 1998-R2 Class AP, 8.36% due 11/25/2034 (a)(b) 47,932 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Face Non-Government Agency Amount Mortgage-Backed Securities++ Value Collateralized Mortgage Obligations (concluded) USD 8,946,457 RMAC Plc Series 2003-NS2A Class A2C, 5.79% due 9/12/2035 (b) $ 8,966,177 20,206,916 Residential Accredit Loans, Inc. Series 2005-QS12 Class A8, 5.669% due 8/25/2035 (b) 20,218,291 Structured Asset Securities Corp. (b): 4,256,017 Series 2005-GEL2 Class A, 5.61% due 4/25/2035 4,258,353 12,055,313 Series 2005-OPT1 Class A4M, 5.68% due 11/25/2035 12,061,542 Washington Mutual (b): 1,158 Series 2000-1 Class B1, 9.33% due 1/25/2040 (a) 1,156 5,036,174 Series 2005-AR2 Class B4, 6.23% due 1/25/2045 5,019,649 -------------- 97,927,424 Commercial Mortgage-Backed Securities--7.1% 32,000,000 Banc of America Commercial Mortgage, Inc. Series 2006-2 Class A4, 5.93% due 5/10/2045 (b) 33,132,202 6,350,000 Bear Stearns Commercial Mortgage Security Series 2002-FL1A Class D, 5.772% due 8/03/2014 (b) 6,350,000 33,000,000 Credit Suisse Mortgage Capital Certificates Series 2006-C3 Class A3, 6.022% due 6/15/2038 (b) 34,303,711 700,000 GMAC Commercial Mortgage Securities, Inc. Series 2004-C3 Class AAB, 4.702% due 12/10/2041 678,467 16,300,000 GS Mortgage Securities Corp. II Series 2006-GG6 Class A2, 5.506% due 4/10/2038 (b) 16,493,998 Greenwich Capital Commercial Funding Corp.: 16,000,000 Series 2004-GG1 Class A4, 4.755% due 6/10/2036 15,820,981 19,700,000 Series 2006-GG7 Class A4, 6.11% due 7/10/2038 (b) 20,625,498 JPMorgan Chase Commercial Mortgage Securities Corp. (b): 35,200,000 Series 2006-CB15 Class A4, 5.814% due 6/12/2043 36,395,952 28,200,000 Series 2006-LDP7 Class A4, 6.066% due 4/15/2045 29,456,316 13,700,000 LB-UBS Commercial Mortgage Trust Series 2005-C3 Class A5, 4.739% due 7/15/2030 13,144,233 -------------- 206,401,358 Total Non-Government Agency Mortgage-Backed Securities (Cost--$299,508,068)--10.5% 304,328,782 Corporate Bonds Aerospace & Defense--0.6% 8,188,000 Goodrich Corp., 6.29% due 7/01/2016 (a) 8,451,564 3,640,000 Honeywell International, Inc., 5.70% due 3/15/2036 3,655,412 5,015,000 Raytheon Co., 8.30% due 3/01/2010 5,479,198 -------------- 17,586,174 Face Amount Corporate Bonds Value Airlines--0.2% USD 2,359,574 American Airlines, Inc. Series 2003-1, 3.857% due 1/09/2012 $ 2,235,460 2,080,000 Continental Airlines, Inc. Series 2002-1, 6.563% due 8/15/2013 2,164,513 2,380,000 Southwest Airlines Co., 7.875% due 9/01/2007 2,427,281 -------------- 6,827,254 Beverages--0.2% Anheuser-Busch Cos., Inc.: 1,810,000 5.95% due 1/15/2033 1,878,632 3,070,000 5.75% due 4/01/2036 3,091,775 185,000 Diageo Capital Plc, 3.50% due 11/19/2007 181,375 -------------- 5,151,782 Capital Markets--1.3% 6,560,000 Credit Suisse First Boston USA, Inc., 4.70% due 6/01/2009 6,489,309 4,325,000 FBG Finance Ltd., 5.875% due 6/15/2035 (a) 4,019,378 Goldman Sachs Group, Inc.: 11,820,000 5.70% due 9/01/2012 12,021,023 6,170,000 5.25% due 10/15/2013 6,088,778 Mellon Funding Corp.: 885,000 4.875% due 6/15/2007 882,123 250,000 6.40% due 5/14/2011 261,195 6,570,000 Morgan Stanley, 5.30% due 3/01/2013 6,559,895 2,035,000 State Street Bank & Trust Co., 5.30% due 1/15/2016 2,022,957 -------------- 38,344,658 Commercial Banks--0.9% 2,705,000 Bank One Corp., 8% due 4/29/2027 3,331,832 5,690,000 Barclays Bank Plc, 8.55% (a)(c) 6,395,497 4,435,000 Corporacion Andina de Fomento, 6.875% due 3/15/2012 4,725,155 4,995,000 HSBC Bank USA NA, 5.875% due 11/01/2034 4,964,136 2,340,000 Popular North America, Inc., 3.875% due 10/01/2008 2,275,608 4,395,000 Shinsei Finance II (Cayman) Ltd., 7.16% (a)(b)(c) 4,386,759 -------------- 26,078,987 Commercial Services & Supplies--0.1% 2,355,000 Aramark Services, Inc., 6.375% due 2/15/2008 2,363,126 Communications Equipment--0.1% 1,535,000 Harris Corp., 5% due 10/01/2015 1,446,807 Construction Materials--0.2% 5,280,000 Lafarge SA, 6.15% due 7/15/2011 5,393,356 Consumer Finance--0.8% 6,410,000 American Express Co., 6.80% due 9/01/2066 (b) 6,767,331 HSBC Finance Corp.: 4,695,000 6.50% due 11/15/2008 4,812,849 1,905,000 5.875% due 2/01/2009 1,936,486 3,135,000 MBNA America Bank NA, 4.625% due 8/03/2009 3,094,439 MBNA Corp.: 3,240,000 6.25% due 1/17/2007 3,247,656 870,000 5.625% due 11/30/2007 872,858 2,750,000 4.625% due 9/15/2008 2,719,313 -------------- 23,450,932 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Face Amount Corporate Bonds Value Containers & Packaging--0.2% USD 6,125,000 Sealed Air Corp., 5.625% due 7/15/2013 (a) $ 6,026,749 Diversified Financial Services--3.0% 4,625,000 Bank of America Corp., 4.875% due 9/15/2012 4,547,263 Citigroup, Inc.: 8,865,000 5.625% due 8/27/2012 9,026,316 4,730,000 5.85% due 12/11/2034 4,768,743 8,605,000 General Electric Capital Corp., 6.75% due 3/15/2032 9,835,859 JPMorgan Chase & Co.: 10,000 4.50% due 11/15/2010 9,754 5,915,000 5.75% due 1/02/2013 6,048,768 4,760,000 4.75% due 3/01/2015 4,540,488 2,745,000 4.891% due 9/01/2015 (b) 2,696,317 Links Finance Corp. (b): 6,300,000 5.64% due 9/15/2010 6,304,738 6,300,000 Series 54, 5.64% due 9/15/2010 6,304,738 3,300,000 Series 55, 5.64% due 9/15/2010 3,296,710 Sigma Finance Corp. (b)(h): 21,350,000 7.405% due 8/15/2011 21,350,000 9,600,000 5.372% due 3/31/2014 9,626,371 -------------- 88,356,065 Diversified Telecommunication Services--0.9% 2,760,000 BellSouth Corp., 6% due 11/15/2034 2,590,710 2,740,000 Deutsche Telekom International Finance BV, 8.25% due 6/15/2030 3,347,431 7,020,000 GTE Corp., 6.84% due 4/15/2018 7,425,791 5,070,000 SBC Communications, Inc., 6.45% due 6/15/2034 5,091,578 4,960,000 TELUS Corp., 7.50% due 6/01/2007 5,024,698 3,865,000 Telecom Italia Capital SA, 6% due 9/30/2034 3,455,534 -------------- 26,935,742 Electric Utilities--1.1% 4,655,000 AEP Texas Central Co. Series D, 5.50% due 2/15/2013 4,629,281 1,695,000 Jersey Central Power & Light, 6.40% due 5/15/2036 (a) 1,772,284 3,280,000 Nevada Power Co., 6.65% due 4/01/2036 (a) 3,389,887 3,350,000 Progress Energy, Inc., 5.625% due 1/15/2016 3,347,762 3,905,000 Public Service Co. of New Mexico, 4.40% due 9/15/2008 3,828,278 4,225,000 SPI Electricity & Gas Australia Holdings Pty Ltd., 6.15% due 11/15/2013 (a) 4,388,858 4,480,000 Sierra Pacific Power Co., 6% due 5/15/2016 (a) 4,491,648 4,050,000 Southern California Edison Co., 5.625% due 2/01/2036 3,930,302 2,855,000 Westar Energy, Inc., 6% due 7/01/2014 2,926,915 -------------- 32,705,215 Energy Equipment & Services--0.1% 2,870,000 Weatherford International Ltd., 5.50% due 2/15/2016 2,826,531 Food Products--0.4% 6,005,000 Cadbury Schweppes US Finance LLC, 3.875% due 10/01/2008 (a) 5,840,913 4,470,000 Tyson Foods, Inc., 6.60% due 4/01/2016 4,602,553 -------------- 10,443,466 Face Amount Corporate Bonds Value Gas Utilities--0.1% USD 3,980,000 Panhandle Eastern Pipe Line Series B, 2.75% due 3/15/2007 $ 3,931,416 Health Care Providers & Services--0.2% 3,025,000 UnitedHealth Group, Inc., 5.80% due 3/15/2036 2,970,429 4,375,000 WellPoint, Inc., 5.85% due 1/15/2036 4,243,492 -------------- 7,213,921 Hotels, Restaurants & Leisure--0.1% 2,760,000 Harrah's Operating Co., Inc., 5.625% due 6/01/2015 2,565,459 350,000 Hilton Hotels Corp., 7.625% due 12/01/2012 372,313 -------------- 2,937,772 Industrial Conglomerates--0.2% 4,330,000 Hutchison Whampoa International (03/33) Ltd., 7.45% due 11/24/2033 (a) 4,907,687 Insurance--0.7% 4,590,000 American International Group, Inc., 6.25% due 5/01/2036 4,822,580 5,520,000 Fund American Cos., Inc., 5.875% due 5/15/2013 5,456,095 8,335,000 Montpelier Re Holdings Ltd., 6.125% due 8/15/2013 8,052,085 735,000 Principal Life Global Funding I, 3.625% due 4/30/2008 (a) 716,050 1,450,000 Prudential Financial, Inc., 4.104% due 11/15/2006 1,448,092 -------------- 20,494,902 Media--1.0% 6,185,000 Comcast Corp., 6.50% due 1/15/2017 6,456,157 3,435,000 Cox Communications, Inc., 7.125% due 10/01/2012 3,660,765 News America, Inc.: 4,500,000 6.40% due 12/15/2035 4,413,294 4,625,000 6.75% due 1/09/2038 4,791,352 8,360,000 Time Warner Companies, Inc., 9.125% due 1/15/2013 9,740,930 -------------- 29,062,498 Metals & Mining--0.3% 2,745,000 Alcan, Inc., 5.75% due 6/01/2035 2,601,198 5,935,000 Vale Overseas Ltd., 6.25% due 1/11/2016 5,890,488 -------------- 8,491,686 Multi-Utilities--0.3% 750,000 Ameren Corp., 4.263% due 5/15/2007 744,786 2,695,000 Consolidated Edison Co. of New York, 5.85% due 3/15/2036 2,692,636 2,835,000 Puget Energy, Inc., 5.483% due 6/01/2035 2,600,667 2,145,000 Xcel Energy, Inc., 6.50% due 7/01/2036 2,263,065 -------------- 8,301,154 Office Electronics--0.3% 9,570,000 Xerox Corp., 6.40% due 3/15/2016 9,522,150 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Face Amount Corporate Bonds Value Oil, Gas & Consumable Fuels--1.8% Consolidated Natural Gas Co.: USD 2,875,000 5% due 12/01/2014 $ 2,729,999 230,000 Series B, 5.375% due 11/01/2006 229,962 3,980,000 Enterprise Products Operating LP Series B, 5.75% due 3/01/2035 3,585,650 4,176,400 Kern River Funding Corp., 4.893% due 4/30/2018 (a) 4,045,720 2,410,000 Motiva Enterprises LLC, 5.20% due 9/15/2012 (a) 2,388,137 5,825,000 Northwest Pipeline Corp., 7% due 6/15/2016 (a) 5,956,063 15,500,000 Pemex Project Funding Master Trust, 6.69% due 6/15/2010 (a)(b) 15,841,000 4,230,000 Petro-Canada, 5.95% due 5/15/2035 4,036,642 3,410,000 Talisman Energy, Inc., 5.85% due 2/01/2037 3,178,884 8,610,000 Ultramar Diamond Shamrock Corp., 6.75% due 10/15/2037 9,308,727 -------------- 51,300,784 Pharmaceuticals--0.2% 84,000 Eli Lilly & Co., 7.125% due 6/01/2025 98,490 4,325,000 Wyeth, 6% due 2/15/2036 4,372,532 -------------- 4,471,022 Real Estate Investment Trusts (REITs)--0.5% Developers Diversified Realty Corp.: 2,075,000 6.625% due 1/15/2008 2,103,689 2,752,000 5.375% due 10/15/2012 2,723,833 2,000,000 5.50% due 5/01/2015 1,963,412 1,545,000 Highwoods Properties, Inc., 7% due 12/01/2006 1,547,766 1,913,000 Nationwide Health Properties, Inc., 6.59% due 7/07/2038 1,951,861 4,250,000 Westfield Capital Corp. Ltd., 5.125% due 11/15/2014 (a) 4,124,111 -------------- 14,414,672 Road & Rail--0.3% Canadian National Railway Co.: 2,085,000 6.90% due 7/15/2028 2,395,784 2,395,000 6.20% due 6/01/2036 2,559,450 3,080,000 Norfolk Southern Corp., 7.05% due 5/01/2037 3,590,424 -------------- 8,545,658 Semiconductors & Semiconductor Equipment--0.7% 19,081,000 International Rectifier Corp., 4.25% due 7/15/2007 (e) 18,842,488 Software--0.2% 5,990,000 Oracle Corp. and Ozark Holding, Inc., 5.25% due 1/15/2016 5,894,567 Thrifts & Mortgage Finance--0.4% 5,605,000 Countrywide Financial Corp., 6.25% due 5/15/2016 5,688,414 6,420,000 Washington Mutual Bank, 6.75% due 5/20/2036 6,895,574 -------------- 12,583,988 Wireless Telecommunication Services--0.2% 2,298,000 AT&T Wireless Services, Inc., 8.75% due 3/01/2031 2,937,763 2,710,000 Sprint Capital Corp., 8.75% due 3/15/2032 3,304,842 -------------- 6,242,605 Total Corporate Bonds (Cost--$513,188,012)--17.6% 511,095,814 Face Amount Foreign Government Obligations Value EUR 23,840,000 Bundesobligation Series 143, 3.50% due 10/10/2008 $ 30,166,469 Mexico Government International Bond: USD 7,180,000 9.875% due 2/01/2010 8,192,380 2,086,000 6.375% due 1/16/2013 2,193,429 2,380,000 5.875% due 1/15/2014 2,433,550 Total Foreign Government Obligations (Cost--$41,824,555)--1.5% 42,985,828 Preferred Securities Capital Trusts Commercial Banks--0.6% 3,060,000 BAC Capital Trust VI, 5.625% due 3/08/2035 2,837,587 4,395,000 MUFG Capital Finance 1 Ltd., 6.346% (b)(c) 4,430,648 3,200,000 RBS Capital Trust I, 5.512% (b)(c) 3,109,299 6,410,000 USB Capital IX, 6.189% (b)(c) 6,482,786 -------------- 16,860,320 Commercial Services & Supplies--0.1% 3,200,000 ILFC E-Capital Trust II, 6.25% due 12/21/2065 (a)(b) 3,198,957 Electric Utilities--0.1% 1,485,000 Alabama Power Capital Trust V, 5.50% due 10/01/2042 (b) 1,481,800 Oil, Gas & Consumable Fuels--0.1% 3,055,000 Pemex Project Funding Master Trust, 7.375% due 12/15/2014 3,302,455 Total Capital Trusts (Cost--$24,569,715)--0.9% 24,843,532 Shares Held Preferred Stocks Commercial Banks--0.1% 3,190,000 Barclays Bank Plc, 6.278% 3,047,567 Electric Utilities--0.0% 9,000 Duquesne Light Co., 6.50% 445,545 Thrifts & Mortgage Finance--0.3% 183,800 Fannie Mae, 7.085% (b) 9,729,913 Total Preferred Stocks (Cost--$13,568,177)--0.4% 13,223,025 Total Preferred Securities (Cost--$38,137,892)--1.3% 38,066,557 Face Amount Short-Term Securities Commercial Paper**--19.5% USD 75,480,000 Barton Capital Corp., 5.25% due 10/18/2006 75,303,880 50,000,000 CBA (Delaware) Finance Inc., 5.24% due 10/18/2006 49,883,556 50,000,000 E.I. du Pont de Nemours & Co., 5.20% due 10/25/2006 49,833,889 100,000,000 IXIS Commercial Paper Corp., 5.24% due 10/16/2006 99,796,222 40,000,000 Old Line Funding, LLC, 5.26% due 10/24/2006 39,871,422 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Face Amount Short-Term Securities Value Commercial Paper** (concluded) Rabobank USA Financial Corp.: USD 50,000,000 5.35% due 10/02/2006 $ 50,000,000 100,000,000 5.225% due 10/12/2006 99,854,861 100,000,000 Wal-Mart Stores, Inc., 5.18% due 10/17/2006 99,784,167 -------------- 564,327,997 U.S. Government Agency Obligations**--7.8% Federal Home Loan Bank System: 107,000,000 4.40% due 10/02/2006 107,000,000 120,300,000 5.12% due 10/16/2006 120,060,469 -------------- 227,060,469 Beneficial Interest USD 403,300,250 BlackRock Liquidity Series, LLC Money Market Series, 5.33% (d)(f)(g) 403,300,250 Total Short-Term Securities (Cost--$1,194,688,716)--41.2% 1,194,688,716 Number of Contracts Options Purchased Value 1,311 U.S. Treasury Bonds, expiring October 2006 at USD 107 $ 1,556,813 Total Options Purchased (Premiums Paid--$659,853)--0.0% 1,556,813 Total Investments (Cost--$3,560,449,909)--123.1% 3,573,174,548 Options Written 1,311 U.S. Treasury Bonds, expiring October 2006 at USD 105 (20,484) Total Options Written (Premiums Received--$528,241)--(0.0%) (20,484) Total Investments, Net of Options Written (Cost--$3,559,921,668*)--123.1% 3,573,154,064 Liabilities in Excess of Other Assets--(23.1%) (670,917,429) -------------- Net Assets--100.0% $2,902,236,635 ============== * The cost and unrealized appreciation (depreciation) of investments, net of options written, as of September 30, 2006, as computed for federal income tax purposes, were as follows: Aggregate cost $ 3,565,527,762 ================ Gross unrealized appreciation $ 23,712,134 Gross unrealized depreciation (16,085,832) ---------------- Net unrealized appreciation $ 7,626,302 ================ ** Commercial Paper and certain U.S. Government Agency Obligations are traded on a discount basis; the interest rates shown reflect the discount rates paid at the time of purchase. ++ Asset-Backed and Mortgage-Backed Securities are subject to principal paydowns. As a result of prepayments or refinancings of the underlying instruments, the average life may be substantially less than the original maturity. (a) The security may be offered and sold to "qualified institutional buyers" under Rule 144A of the Securities Act of 1933. (b) Floating rate security. (c) The security is a perpetual bond and has no stated maturity date. (d) Investments in companies considered to be an affiliate of the Master Portfolio, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: Net Interest Affiliate Activity Income BlackRock Capital Finance LP Series 1997-R2 Class AP, 8.017% due 12/25/2035 $ (7,762) $ 1,467 BlackRock Liquidity Series, LLC Money Market Series $17,233,875 $743,882 (e) Convertible security. (f) Represents the current yield as of September 30, 2006. (g) Security was purchased with the cash proceeds from securities loans. (h) Restricted securities as to resale, representing approximately 1.1% of net assets, were as follows: Acquisition Issue Date Cost Value Sigma Finance Corp., 7.405% due 8/15/2011 2/13/2004 $ 21,350,000 $ 21,350,000 Sigma Finance Corp., 5.372% due 3/31/2014 3/26/2004 9,600,000 9,626,371 ------------ ------------ Total $ 30,950,000 $ 30,976,371 ============ ============ (i) All or a portion of security held as collateral in connection with open financial futures contracts. (j) Security, or a portion of security, is on loan. (k) Represents or includes a "to-be-announced" transaction. The Master Portfolio has committed to purchasing securities for which all specific information is not available at this time. o For Master Portfolio compliance purposes, the Master Portfolio's industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Master Portfolio management. This definition may not apply for purposes of this report, which may combine industry sub-classifications for reporting ease. Industries are shown as a percent of net assets. These industry classifications are unaudited. o Financial futures contracts purchased as of September 30, 2006 were as follows: Number of Expiration Face Unrealized Contracts Issue Date Value Appreciation 1,285 5-Year U.S. Treasury Note December 2006 $134,677,261 $ 910,317 o Financial futures contracts sold as of September 30, 2006 were as follows: Number of Expiration Face Unrealized Contracts Issue Date Value Depreciation 593 2-Year U.S. Treasury Note December 2006 $120,886,759 $ (381,741) 2,650 10-Year U.S. Treasury Note December 2006 $284,190,228 (2,175,397) 943 30-Year U.S. Treasury Bond December 2006 $104,258,061 (1,741,033) ------------- Total Unrealized Depreciation $ (4,298,171) ============= BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) o Swaps outstanding as of September 30, 2006 were as follows: Unrealized Notional Appreciation Amount (Depreciation) Receive (pay) a variable return based on the change in the since inception return of the U.S. Agency Index and pay a floating rate based on 1-month LIBOR minus 0.05% Broker, Lehman Brothers Special Finance Expires October 2006 $ 79,600,000 -- Receive (pay) a variable return based on the change in the since inception return of the Lehman Brothers MBS Fixed Rate Index and pay a floating rate based on 1-month LIBOR minus 0.035% Broker, UBS Warburg Expires October 2006 $150,900,000 -- Receive (pay) a variable return based on the change in the since inception return of the Lehman Brothers U.S. Treasury Index and pay a floating rate based on 1-month LIBOR minus 0.12% Broker, Lehman Brothers Special Finance Expires November 2006 $139,100,000 -- Receive (pay) a variable return based on the change in the since inception return of the Lehman Brothers MBS Fixed Rate Index and pay a floating rate based on 1-month LIBOR minus 0.06% Broker, UBS Warburg Expires December 2006 $377,200,000 -- Receive (pay) a variable return based on the change in the since inception return of the Lehman Brothers U.S. Treasury Index and pay a floating rate based on 1-month LIBOR minus 0.13% Broker, Lehman Brothers Special Finance Expires January 2007 $ 86,300,000 -- Receive (pay) a variable return rate based on the change in the since inception return of the Lehman Brothers U.S. Treasury Index and pay a floating rate based on 1-month LIBOR minus 0.13% Broker, Lehman Brothers Special Finance Expires February 2007 $130,000,000 -- Receive a fixed rate of 5.3225% and pay a floating rate based on 3-month LIBOR Broker, Lehman Brothers Special Finance Expires April 2007 $582,000,000 $ (628,333) Unrealized Notional Appreciation Amount (Depreciation) Receive a fixed rate of 4.095% and pay a floating rate based on 3-month LIBOR Broker, Citibank, N.A. Expires September 2007 $152,000,000 $ (1,704,334) Sold credit default protection on Sprint Capital Corp. and receive 1.50% Broker, Morgan Stanley Capital Services Inc. Expires September 2008 $ 5,490,000 137,772 Sold credit default protection on Comcast Cable Communications, Inc. and receive 1.15% Broker, Morgan Stanley Capital Services Inc. Expires September 2008 $ 5,490,000 108,806 Receive a fixed rate of 3.401% and pay 3.875% on Treasury Inflation Protected Securities (TIPS) adjusted principal Broker, JPMorgan Chase Expires January 2009 $ 16,302,000 (314,145) Sold credit default protection on Raytheon Co. and receive 0.73% Broker, JPMorgan Chase Expires March 2009 $ 3,165,000 47,968 Sold credit default protection on Nextel Communications, Inc. Class A and receive 1.72% Broker, JPMorgan Chase Expires September 2009 $ 6,360,000 257,415 Bought credit default protection on Valero Energy Corp. and pay 1.03% Broker, Deutsche Bank AG London Expires June 2010 $ 3,250,000 (84,305) Sold credit default protection on BellSouth Corp. and receive 0.26% Broker, Lehman Brothers Special Finance Expires June 2010 $ 3,155,000 6,518 Bought credit default protection on Valero Energy Corp. and pay 1.00% Broker, Lehman Brothers Special Finance Expires June 2010 $ 3,250,000 (84,305) Sold credit default protection on CSX Corp. and receive 0.34% Broker, JPMorgan Chase Expires December 2010 $ 6,555,000 35,115 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (continued) Master Bond Portfolio (in U.S. dollars) Swaps outstanding as of September 30, 2006 were as follows (continued): Unrealized Notional Appreciation Amount (Depreciation) Bought credit default protection on Sara Lee Corp. and pay 0.57% Broker, Lehman Brothers Special Finance Expires December 2010 $ 6,555,000 $ (50,008) Bought credit default protection on Brunswick Corp. and pay 0.60% Broker, JPMorgan Chase Expires December 2010 $ 6,590,000 (2,590) Bought credit default protection on ConAgra Foods, Inc. and pay 0.57% Broker, Lehman Brothers Special Finance Expires December 2010 $ 6,555,000 (90,210) Bought credit default protection on HJ Heinz Co. and pay 0.37% Broker, UBS Warburg Expires December 2010 $ 6,555,000 (20,052) Bought credit default protection on CVS Corp. and pay 0.48% Broker, Morgan Stanley Capital Services Inc. Expires December 2010 $ 6,590,000 (70,546) Sold credit default protection on Goodrich Corp. and receive 0.44% Broker, UBS Warburg Expires December 2010 $ 6,555,000 52,886 Bought credit default protection on RadioShack Corp. and pay 1.16% Broker, UBS Warburg Expires December 2010 $ 6,590,000 (39,771) Bought credit default protection on Campbell Soup Co. and pay 0.26% Broker, UBS Warburg Expires December 2010 $ 6,555,000 (40,182) Bought credit default protection on Kohl's Corp. and pay 0.39% Broker, Morgan Stanley Capital Services Inc. Expires December 2010 $ 6,590,000 (50,414) Bought credit default protection on TJX Cos., Inc. and pay 0.57% Broker, Morgan Stanley Capital Services Inc. Expires December 2010 $ 6,590,000 (98,283) Unrealized Notional Appreciation Amount (Depreciation) Bought credit default protection on Limited Brands, Inc. and pay 1.065% Broker, UBS Warburg Expires December 2010 $ 6,590,000 $ (149,165) Sold credit default protection on Lehman Brothers Holdings, Inc. and receive 0.271% Broker, UBS Warburg Expires December 2010 $ 6,555,000 22,831 Sold credit default protection on Dow Jones CDX North America Investment Grade Index Series 5 and receive 0.45% Broker, Deutsche Bank AG London Expires December 2010 $ 33,735,000 130,289 Sold credit default protection on Dow Jones CDX North America Investment Grade Index Series 5 and receive 0.45% Broker, Lehman Brothers Special Finance Expires December 2010 $ 32,960,000 141,638 Sold credit default protection on Dow Jones CDX North America Investment Grade High Volatility Index Series 5 and receive 0.85% Broker, JPMorgan Chase Expires December 2010 $ 16,480,000 221,291 Receive a fixed rate of 4.17% and pay 3.50% on Treasury Inflation Protected Securities (TIPS) adjusted principal Broker, Morgan Stanley Capital Services Inc. Expires January 2011 $ 14,075,000 (673,822) Bought credit default protection on Kohl's Corp. and pay 0.43% Broker, Lehman Brothers Special Finance Expires March 2011 $ 6,725,000 (60,222) Bought credit default protection on Campbell Soup Co. and pay 0.25% Broker, Lehman Brothers Special Finance Expires March 2011 $ 6,725,000 (38,305) BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Schedule of Investments (concluded) Master Bond Portfolio (in U.S. dollars) Swaps outstanding as of September 30, 2006 were as follows (concluded): Unrealized Notional Appreciation Amount (Depreciation) Bought credit default protection on Sara Lee Corp. and pay 0.604% Broker, JPMorgan Chase Expires March 2011 $ 6,725,000 $ (54,513) Bought credit default protection on Limited Brands, Inc. and pay 0.73% Broker, Lehman Brothers Special Finance Expires March 2011 $ 6,725,000 (56,356) Sold credit default protection on Federated Department Stores, Inc. and receive 0.38% Broker, JPMorgan Chase Expires March 2011 $ 6,745,000 (29,294) Bought credit default protection on Tyson Foods, Inc. and pay 1.185% Broker, JPMorgan Chase Expires June 2011 $ 7,300,000 (31,010) Bought credit default protection on Computer Sciences Corp. and pay 0.88% Broker, Morgan Stanley Capital Services Inc. Expires June 2011 $ 6,790,000 (144,131) Sold credit default protection on Dow Jones CDX North America Investment Grade Crossover Index Series 6 and receive 1.90% Broker, JPMorgan Chase Expires June 2011 $ 16,485,000 72,986 Sold credit default protection on Dow Jones CDX North America Investment Grade Crossover Index Series 6 and receive 1.90% Broker, Morgan Stanley Capital Services Inc. Expires June 2011 $ 24,850,000 104,960 Sold credit default protection on Dow Jones CDX North America Investment Grade Index Series 6 and receive 0.40% Broker, Lehman Brothers Special Finance Expires June 2011 $ 16,485,000 22,529 Unrealized Notional Appreciation Amount (Depreciation) Sold credit default protection on Dow Jones CDX North America Investment Grade Index Series 6 and receive 0.40% Broker, JPMorgan Chase Expires June 2011 $ 65,945,000 $ 241,340 Sold credit default protection on Dow Jones CDX North America Investment Grade High Volatility Index Series 6 and receive 0.75% Broker, Lehman Brothers Special Finance Expires June 2011 $ 20,150,000 50,964 Sold credit default protection on Dow Jones CDX North America Investment Grade High Volatility Index Series 6 and receive 0.75% Broker, Lehman Brothers Special Finance Expires June 2011 $ 32,975,000 55,929 Sold credit default protection on Dow Jones CDX North America Investment Grade High Volatility Index Series 6 and receive 0.75% Broker, JPMorgan Chase Expires June 2011 $ 66,265,000 28,631 Receive a floating rate based on 1-month LIBOR plus 0.47%, which is capped at a fixed coupon of 6.0%, and pay a floating rate based on 1-month LIBOR Broker, CS First Boston International Expires June 2011 $146,250,000 (40,040) Bought credit default protection on MeadWestvaco Corp. and pay 0.85% Broker, Morgan Stanley Capital Services Inc. Expires September 2013 $ 6,845,000 479 Bought credit default protection on Eastman Chemical Co. and pay 0.68% Broker, Morgan Stanley Capital Services Inc. Expires September 2013 $ 6,845,000 (43,829) ------------ Total $(2,857,818) ============ o Currency Abbreviations: EUR Euro USD U.S. Dollar See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statement of Assets and Liabilities Master Bond Portfolio As of September 30, 2006 Assets Investments in unaffiliated securities, at value (including securities loaned of $392,479,100) (identified cost--$3,156,473,569) $ 3,168,301,149 Investments in affiliated securities, at value (identified cost--$403,316,487) 403,316,586 Options purchased, at value (premiums paid--$659,853) 1,556,813 Unrealized appreciation on swaps 1,740,347 Swap premiums paid 11,105 Cash 410,486 Receivables: Interest $ 15,799,631 Swaps 15,497,100 Contributions 15,245,229 Variation margin 195,922 Dividends 180,893 Securities lending 27,102 Principal paydowns 19,700 46,965,577 --------------- Prepaid expenses 42,533 --------------- Total assets 3,622,344,596 --------------- Liabilities Collateral on securities loaned, at value 403,300,250 Options written, at value (premiums received--$528,241) 20,484 Unrealized depreciation on swaps 4,598,165 Swap premiums received 376,324 Payables: Securities purchased 303,765,232 Swaps 4,558,183 Withdrawals 3,065,198 Investment adviser 140,093 Other affiliates 13,791 311,542,497 --------------- Accrued expenses 270,241 --------------- Total liabilities 720,107,961 --------------- Net Assets Net assets $ 2,902,236,635 =============== Net Assets Consist of Investors' capital $ 2,895,233,435 Unrealized appreciation--net 7,003,200 --------------- Net Assets $ 2,902,236,635 =============== See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statement of Operations Master Bond Portfolio For the Year Ended September 30, 2006 Investment Income Interest (including $1,467 from affiliates) $ 139,677,452 Securities lending--net 743,882 Dividends 686,795 --------------- Total income 141,108,129 --------------- Expenses Investment advisory fees $ 1,857,632 Accounting services 643,095 Interest from securities sold short 381,528 Custodian fees 130,023 Professional fees 75,802 Pricing fees 43,940 Trustees' fees and expenses 34,471 Printing and shareholder reports 2,242 Other 92,798 --------------- Total expenses 3,261,531 --------------- Investment income--net 137,846,598 --------------- Realized & Unrealized Gain (Loss)--Net Realized gain (loss) on: Investments (including $(15) from affiliates)--net (40,385,336) Financial futures contracts and swaps--net 1,287,101 Short sales--net 1,822,309 Options written--net (535,607) Foreign currency transactions--net 179,845 (37,631,688) --------------- Change in unrealized appreciation/depreciation on: Investments--net 11,896,243 Financial futures contracts and swaps--net (5,218,994) Options written--net 535,157 Foreign currency transactions--net (332,085) 6,880,321 --------------- --------------- Total realized and unrealized loss--net (30,751,367) --------------- Net Increase in Net Assets Resulting from Operations $ 107,095,231 =============== See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Statements of Changes in Net Assets Master Bond Portfolio For the Year Ended September 30, Increase (Decrease) in Net Assets: 2006 2005 Operations Investment income--net $ 137,846,598 $ 107,950,389 Realized gain (loss)--net (37,631,688) 14,824,889 Change in unrealized appreciation/depreciation--net 6,880,321 (33,001,657) --------------- --------------- Net increase in net assets resulting from operations 107,095,231 89,773,621 --------------- --------------- Capital Transactions Proceeds from contributions 636,922,287 715,008,502 Fair value of withdrawals (713,610,950) (659,703,618) --------------- --------------- Net increase (decrease) in net assets derived from capital transactions (76,688,663) 55,304,884 --------------- --------------- Net Assets Total increase in net assets 30,406,568 145,078,505 Beginning of year 2,871,830,067 2,726,751,562 --------------- --------------- End of year $ 2,902,236,635 $ 2,871,830,067 =============== =============== See Notes to Financial Statements. Financial Highlights Master Bond Portfolio For the Period For the Year Ended October 1, 2003++ The following ratios have been derived from September 30, to September 30, information provided in the financial statements. 2006 2005 2004 Total Investment Return Total investment return 3.88% 3.13% 4.34%++++ =============== =============== =============== Ratios to Average Net Assets Expenses .12% .10% .10% =============== =============== =============== Investment income--net 4.90% 3.81% 3.39% =============== =============== =============== Supplemental Data Net assets, end of period (in thousands) $ 2,902,237 $ 2,871,830 $ 2,726,752 =============== =============== =============== Portfolio turnover 207.94% 234.92% 258.01% =============== =============== =============== ++ Commencement of operations. ++++ Aggregate total investment return. See Notes to Financial Statements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements Master Bond Portfolio 1. Significant Accounting Policies: On September 29, 2006, Master Core Bond Portfolio was renamed Master Bond Portfolio (the "Master Portfolio"), which is part of Master Bond Trust (the "Trust"). The Master Portfolio is registered under the Investment Company Act of 1940, as amended, and is organized as a Delaware statutory trust. The Declaration of Trust permits the Trustees to issue nontransferable interests in the Master Portfolio, subject to certain limitations. The Master Portfolio's financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. The following is a summary of significant accounting policies followed by the Master Portfolio. (a) Valuation of investments--Debt securities are traded primarily in the over- the-counter ("OTC") markets and are valued at the last available bid price in the OTC market or on the basis of values obtained by a pricing service. Pricing services use valuation matrixes that incorporate both dealer-supplied valuations and valuation models. The procedures of the pricing service and its valuations are reviewed by the officers of the Trust under the general direction of the Board of Trustees. Such valuations and procedures will be reviewed periodically by the Board of Trustees of the Trust. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their closing prices as of the close of such exchanges. Options written or purchased are valued at the last sale price in the case of exchange-traded options. In the case of options traded in the OTC market, valuation is the last asked price (options written) or the last bid price (options purchased). Swap agreements are valued based upon quoted fair valuations received daily by the Master Portfolio from a pricing service or counterparty. Short-term investments with a remaining maturity of 60 days or less are valued at amortized cost, which approximates market value, under which method the investment is valued at cost and any premium or discount is amortized on a straight line basis to maturity. Valuation of other short-term investment vehicles is generally based on the net asset value of the underlying investment vehicle or amortized cost. Repurchase agreements are valued at cost plus accrued interest. Investments in open-end investment companies are valued at their net asset value each business day. Securities and other assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Board of Trustees of the Trust. Equity securities that are held by the Master Portfolio, which are traded on stock exchanges or the Nasdaq National Market, are valued at the last sale price or official close price on the exchange, as of the close of business on the day the securities are being valued or, lacking any sales, at the last available bid price for long positions, and at the last available asked price for short positions. In cases where equity securities are traded on more than one exchange, the securities are valued on the exchange designated as the primary market by or under the authority of the Board of Trustees of the Trust. Long positions traded in the OTC market, Nasdaq Small Cap or Bulletin Board are valued at the last available bid price obtained from one or more dealers or pricing services approved by the Board of Trustees of the Trust. Short positions traded in the OTC market are valued at the last available asked price. Portfolio securities that are traded both in the OTC market and on a stock exchange are valued according to the broadest and most representative market. Generally, trading in foreign securities is substantially completed each day at various times prior to the close of business on the New York Stock Exchange ("NYSE"). The values of such securities used in computing the net assets of the Master Portfolio are determined as of such times. Foreign currency exchange rates also are generally determined prior to the close of business on the NYSE. As of October 2, 2006, foreign currency exchange rates will be determined as of the close of business on the NYSE. Occasionally, events affecting the values of such securities and such exchange rates may occur between the times at which they are determined and the close of business on the NYSE that may not be reflected in the computation of the Master Portfolio's net assets. If events (for example, a company announcement, market volatility or a natural disaster) occur during such periods that are expected to materially affect the value of such securities, those securities may be valued at their fair value as determined in good faith by the Trust's Board of Trustees or by the Investment Adviser using a pricing service and/or procedures approved by the Trust's Board of Trustees. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (continued) Master Bond Portfolio (b) Derivative financial instruments--The Master Portfolio may engage in various portfolio investment strategies both to increase the return of the Master Portfolio 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. * Financial futures contracts--The Master Portfolio may purchase or sell financial futures contracts and options on such financial futures contracts. Financial 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 Master Portfolio deposits and maintains as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Master Portfolio 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 Master Portfolio as unrealized gains or losses. When the contract is closed, the Master Portfolio records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. * Options--The Master Portfolio may purchase and write call and put options. When the Master Portfolio writes an option, an amount equal to the premium received by the Master Portfolio 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 Master Portfolio enters into a closing transaction), the Master Portfolio realizes a gain or loss on the option to the extent of the premiums received or paid (or a gain or loss to the extent that the cost of the closing transaction exceeds the premium paid or received). Written and purchased options are non-income producing investments. * Forward foreign exchange contracts--The Master Portfolio may enter into forward foreign exchange contracts as a hedge against either specific transactions or portfolio positions. The contract is marked-to-market daily and the change in market value is recorded by the Master Portfolio as an unrealized gain or loss. When the contract is closed, the Master Portfolio records a realized gain or loss equal to the difference between the value at the time it was opened and the value at the time it was closed. * Foreign currency options and futures--The Master Portfolio may also purchase or sell listed or OTC foreign currency options, foreign currency futures and related options on foreign currency futures as a short or long hedge against possible variations in foreign exchange rates. Such transactions may be effected with respect to hedges on non-U.S. dollar-denominated securities owned by the Master Portfolio, sold by the Master Portfolio but not yet delivered, or committed or anticipated to be purchased by the Master Portfolio. * Swaps--The Master Portfolio may enter into swap agreements, which are OTC contracts in which the Master Portfolio and a counterparty agree to make periodic net payments on a specified notional amount. The net payments can be made for a set period of time or may be triggered by a predetermined credit event. The net periodic payments may be based on a fixed or variable interest rate; the change in market value of a specified security, basket of securities, or index; or the return generated by a security. These periodic payments received or made by the Master Portfolio are recorded in the accompanying Statement of Operations as realized gains or losses, respectively. Gains or losses are also realized upon termination of the swap agreements. Swaps are marked-to-market daily and changes in value are recorded as unrealized appreciation (depreciation). Risks include changes in the returns of the underlying instruments, failure of the counterparties to perform under the contracts' terms and the possible lack of liquidity with respect to the swap agreements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (continued) Master Bond Portfolio (c) Foreign currency transactions--Transactions denominated in foreign currencies are recorded at the exchange rate prevailing when recognized. Assets and liabilities denominated in foreign currencies are valued at the exchange rate at the end of the period. Foreign currency transactions are the result of settling (realized) or valuing (unrealized) assets or liabilities expressed in foreign currencies into U.S. dollars. Realized and unrealized gains or losses from investments include the effects of foreign exchange rates on investments. The Master Portfolio invests in foreign securities, which may involve a number of risk factors and special considerations not present with investments in securities of U.S. corporations. (d) Income taxes--The Master Portfolio is classified as a partnership for federal income tax purposes. As such, each investor in the Master Portfolio is treated as owner of its proportionate share of the net assets, income, expenses and realized and unrealized gains and losses of the Master Portfolio. Therefore, no federal income tax provision is required. Under the applicable foreign tax law, a withholding tax may be imposed on interest, dividends and capital gains at various rates. It is intended that the Master Portfolio's assets will be managed so an investor in the Master Portfolio can satisfy the requirements of Subchapter M of the Internal Revenue Code. (e) Recent accounting pronouncement--In July 2006, the Financial Accounting Standards Board ("FASB") issued Interpretation No. 48 ("FIN 48") entitled "Accounting for Uncertainty in Income Taxes--an interpretation of FASB Statement No. 109." FIN 48 prescribes the minimum recognition threshold a tax position must meet in connection with accounting for uncertainties in income tax positions taken or expected to be taken by an entity including mutual funds before being measured and recognized in the financial statements. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006. The impact on the Master Portfolio's financial statements, if any, is currently being assessed. (f) Security transactions and investment income--Security transactions are accounted for on the date the securities are purchased or sold (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. Dividends from foreign securities where the ex-dividend date may have passed are subsequently recorded when the Master Portfolio has determined the ex-dividend date. Interest income is recognized on the accrual basis. (g) Securities lending--The Master Portfolio may lend securities to financial institutions that provide cash or securities issued or guaranteed by the U.S. government as collateral, which will be maintained at all times in an amount equal to at least 100% of the current market value of the loaned securities. The market value of the loaned securities is determined at the close of business of the Master Portfolio and any additional required collateral is delivered to the Master Portfolio on the next business day. Where the Master Portfolio receives securities as collateral for the loaned securities, it collects a fee from the borrower. The Master Portfolio typically receives the income on the loaned securities but does not receive the income on the collateral. Where the Master Portfolio receives cash collateral, it may invest such collateral and retain the amount earned on such investment, net of any amount rebated to the borrower. Loans of securities are terminable at any time and the borrower, after notice, is required to return borrowed securities within five business days. The Master Portfolio may pay reasonable finder's, lending agent, administrative and custodial fees in connection with its loans. In the event that the borrower defaults on its obligation to return borrowed securities because of insolvency or for any other reason, the Master Portfolio could experience delays and costs in gaining access to the collateral. The Master Portfolio also could suffer a loss where the value of the collateral falls below the market value of the borrowed securities, in the event of borrower default or in the event of losses on investments made with cash collateral. (h) Short sales--When the Master Portfolio engages in a short sale, an amount equal to the proceeds received by the Master Portfolio is reflected as an asset and an equivalent liability. The amount of the liability is subsequently marked-to-market to reflect the market value of the short sale. The Master Portfolio maintains a segregated account of securities as collateral for the short sales. The Master Portfolio is exposed to market risk based on the amount, if any, that the market value of the security exceeds the market value of the securities in the segregated account. The Master Portfolio is required to repay the counterparty any dividends or interest received on the security sold short. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (continued) Master Bond Portfolio 2. Investment Advisory Agreement and Transactions with Affiliates: The Trust, on behalf of the Master Portfolio, 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 Master Portfolio's investments and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Master Portfolio. For such services, the Master Portfolio pays a monthly fee with respect to the Master Portfolio based upon the aggregate average daily value of the Master Portfolio's net assets and BlackRock Bond Fund, Inc. (the "Fund") (formerly Merrill Lynch Bond Fund, Inc.), BlackRock High Income and BlackRock Intermediate Term Funds' (formerly High Income and Intermediate Portfolios, respectively) net assets at an annual rate of .20% of the average daily net assets not exceeding $250 million; .15% of average daily net assets in excess of $250 million but less than $500 million; .10% of average daily net assets in excess of $500 million but less than $750 million and .05% in excess of $750 million. For the year ended September 30, 2006, the aggregate average daily net assets of the Master Portfolio, including the Fund's High Income Fund and Intermediate Term Fund, was approximately $4,670,883,000. FAM has entered into a Sub-Advisory Agreement with Merrill Lynch Asset Management U.K. Limited ("MLAM U.K."), an affiliate of FAM, pursuant to which MLAM U.K. provides investment advisory services to MLIM with respect to the Master Portfolio. There is no increase in the aggregate fees paid by the Master Portfolio for these services. The Master Portfolio has received an exemptive order from the Securities and Exchange Commission permitting it to lend portfolio securities to Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), an affiliate of FAM, or its affiliates. As of September 30, 2006, the Master Portfolio lent securities with a value of $91,721,300 to MLPF&S or its affiliates. Pursuant to that order, the Master Portfolio also has retained Merrill Lynch Investment Managers, LLC ("MLIM, LLC"), an affiliate of FAM, as the securities lending agent for a fee based on a share of the returns on investment of cash collateral. MLIM, LLC may, on behalf of the Master Portfolio, invest cash collateral received by the Trust for such loans, among other things, in a private investment company managed by MLIM, LLC or in registered money market funds advised by Merrill Lynch Investment Managers, L.P. ("MLIM"), an affiliate of FAM. For the year ended September 30, 2006, MLIM, LLC received $317,937 in securities lending agent fees. In addition, MLPF&S received $489 in commissions on the execution of portfolio security transactions for the Master Portfolio for the year ended September 30, 2006. For the year ended September 30, 2006, the Master Portfolio reimbursed FAM $64,595 for certain accounting services. In February 2006, ML & Co. and BlackRock, Inc. entered into an agreement to contribute ML & Co.'s investment management business, including FAM, to the investment management business of BlackRock, Inc. The transaction closed on September 29, 2006. On August 15, 2006, the shareholders of the investors of the Master Portfolio approved a new Investment Advisory Agreement with BlackRock Advisors, Inc., (the "Manager") a wholly owned subsidiary of BlackRock, Inc. BlackRock Advisors, Inc. was reorganized into BlackRock Advisors, LLC. The new advisory agreement became effective on September 29, 2006 and the investment advisory fee is unchanged. In addition, the Manager has entered into a sub-advisory agreement with BlackRock Financial Management, Inc., an affiliate, under which the Manager pays the Sub-Adviser for services it provides a fee equal to 59% of the management fee paid to the Manager. In connection with the closing, MLIM, LLC, the security lending agent, will become BlackRock Investment Managers, LLC. Prior to the closing, certain officers and/or trustees of the Trust are officers and/or directors of FAM, PSI, MLAM U.K., ML & Co., MLIM, and/or MLIM, LLC. Commencing September 29, 2006, certain officers and/or trustees of the Trust are officers and/or directors of BlackRock, Inc. or its affiliates. 3. Investments: Purchases and sales (including paydowns) of investments, excluding short-term securities, for the year ended September 30, 2006 were $5,381,237,325 and $5,527,724,533, respectively. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Notes to Financial Statements (concluded) Master Bond Portfolio Transactions in call options written for the year ended September 30, 2006 were as follows: Number of Premiums Contracts* Received Outstanding call options written, beginning of year 2,872 $ 746,399 Options written -- -- Options closed (329) (398,300) Options expired (2,543) (348,099) --------------- --------------- Outstanding call options written, end of year -- $ -- =============== =============== * Some contracts include a notional amount of $1,000,000. Transactions in put options written for the year ended September 30, 2006 were as follows: Number of Premiums Contracts* Received Outstanding put options written, beginning of year 329 $ 992,250 Options written 2,720 2,407,271 Options closed (1,738) (2,871,280) Options expired -- -- --------------- --------------- Outstanding put options written, end of year 1,311 $ 528,241 =============== =============== * Some contracts include a notional amount of $1,000,000. 4. Short-Term Borrowings: The Master Portfolio, along with certain other funds managed by FAM and its affiliates, is a party to a $500,000,000 credit agreement with a group of lenders, which expires November 26, 2006. The Master Portfolio may borrow under the credit agreement to fund shareholder redemptions and for other lawful purposes other than for leverage. The Master Portfolio may borrow up to the maximum amount allowable under the Master Portfolio's current prospectus and statement of additional information, subject to various other legal, regulatory or contractual limits. The Master Portfolio pays a commitment fee of .07% per annum based on the Master Portfolio's pro rata share of the unused portion of the credit agreement. Amounts borrowed under the credit agreement bear interest at a rate equal to, at each Master Portfolio's election, the federal funds rate plus .50% or a base rate as defined in the credit agreement. The Master Portfolio did not borrow under the credit agreement during the year ended September 30, 2006. 5. Acquisition of BlackRock Intermediate Term Fund of BlackRock Bond Fund, Inc.: On October 16, 2006, an investor of the Master Portfolio acquired all of the net assets of BlackRock Intermediate Term Fund of BlackRock Bond Fund, Inc. pursuant to a plan of reorganization. As a result of the reorganization the Master Portfolio received an in-kind contribution of portfolio securities. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Report of Independent Registered Public Accounting Firm Master Bond Portfolio To the Investors and Board of Trustees of Master Bond Trust: We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Master Bond Portfolio, formerly Master Core Bond Portfolio, of Master Bond Trust (the "Trust") as of September 30, 2006 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 the respective periods then ended. These financial statements and financial highlights are the responsibility of the Trust'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 the standards of the Public Company Accounting Oversight Board (United States). 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. The Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Trust's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of September 30, 2006 by correspondence with the custodian and brokers; where replies were not received, we performed other auditing procedures. 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 Master Bond Portfolio of Master Bond Trust as of September 30, 2006, 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 the respective periods then ended, in conformity with U.S. generally accepted accounting principles. Deloitte & Touche LLP Princeton, New Jersey November 22, 2006 BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Disclosure of New Investment Advisory Agreement New BlackRock Investment Advisory Agreement--Matters Considered by the Boards BlackRock Bond Fund (the "Fund") of BlackRock Bond Fund, Inc. is a "feeder" fund that invests all its assets in Master Bond Portfolio of Master Bond Trust (the "Trust"), which has the same investment objectives and strategies as the Fund. All investments are made at the Trust level. In connection with the combination of Merrill Lynch's investment advisory business, including Fund Asset Management, L.P. (the "Previous Investment Adviser"), with that of BlackRock, Inc. ("BlackRock") to create a new independent company ("New BlackRock") (the "Transaction"), the Board of Trustees of the Trust considered and approved a new investment advisory agreement between the Master Bond Trust, on behalf of the Master Bond Portfolio, and BlackRock Advisors, LLC ("BlackRock Advisors"). The Fund's shareholders subsequently approved the Trust's BlackRock investment advisory agreement and it became effective on September 29, 2006, replacing the investment advisory agreement with the Previous Investment Adviser. In addition, in connection with the Transaction, the Board of Directors of the Fund considered and approved a new investment advisory agreement between BlackRock Bond Fund, Inc., on behalf of the Fund, and BlackRock Advisors (together with the new advisory agreement for the Trust, the "BlackRock Investment Advisory Agreements"). The Fund's shareholders subsequently approved the Fund's BlackRock Investment Advisory Agreement and it became effective on September 29, 2006, replacing the investment advisory agreement with the Previous Investment Adviser (together with the Trust's investment advisory agreement with the Previous Investment Adviser, the "Previous Investment Advisory Agreements"). Each Board discussed the respective BlackRock Investment Advisory Agreement at telephonic and in-person meetings held during April and May 2006. Each Board, including the independent directors/trustees, approved the respective BlackRock Investment Advisory Agreement at an in-person meeting held on May 12, 2006. The Fund's Board also approved the issuance of new classes of shares and new distribution arrangements with respect to these new share classes, including higher distribution fees for certain new share classes, to take effect after the closing of the Transaction. The Fund's Board also approved revised front-end sales charge schedules with respect to certain classes of shares of the Fund. To assist each Board in its consideration of the respective BlackRock Investment Advisory Agreement, BlackRock provided materials and information about BlackRock, including its financial condition and asset management capabilities and organization, and Merrill Lynch provided materials and information about the Transaction. The independent directors/trustees, through their independent legal counsel, also requested and received additional information from Merrill Lynch and BlackRock in connection with their consideration of the respective BlackRock Investment Advisory Agreement. The additional information was provided in advance of the May 12, 2006 meetings. In addition, the independent directors consulted with their counsel and counsel for the Fund and the Trust on numerous occasions, discussing, among other things, the legal standards and certain other considerations relevant to each Board's deliberations. At each Board meeting, the directors/trustees discussed with Merrill Lynch management and certain BlackRock representatives the Transaction, its strategic rationale and BlackRock's general plans and intentions regarding the Fund and the Trust. At these Board meetings, representatives of Merrill Lynch and BlackRock made presentations to and responded to questions from each Board. Each Board also inquired about the plans for and anticipated roles and responsibilities of certain employees and officers of the Previous Investment Adviser, and of its affiliates, to be transferred to BlackRock in connection with the Transaction. The independent directors/trustees also conferred separately and with their counsel about the Transaction, including a proposed reorganization in which the Fund would acquire the assets and the liabilities of the BlackRock Intermediate Term Portfolio of BlackRock Bond Fund, Inc., and other matters related to the Transaction on a number of occasions, including in connection with the April and May 2006 meetings. After the presentations and after reviewing the written materials provided, the independent directors/ trustees met in executive sessions with their counsel to consider the BlackRock Investment Advisory Agreements. In connection with each Board's review of the respective BlackRock Investment Advisory Agreement, Merrill Lynch and/or BlackRock advised the Boards about a variety of matters. The advice included the following, among other matters: * that there was not expected to be any diminution in the nature, quality and extent of services provided to the Fund and the Trust and their shareholders by BlackRock Advisors, including compliance services; BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 * that operation of New BlackRock as an independent investment management firm would enhance its ability to attract and retain talented professionals; * that the Fund and the Trust were expected to benefit from having access to BlackRock's state of the art technology and risk management analytic tools, including investment tools, provided under the BlackRock Solutions (R) brand name; * that BlackRock had no present intention to alter any applicable expense waivers or reimbursements that were currently in effect and, while it reserved the right to do so in the future, it would seek the approval of each Board before making any changes; * that BlackRock and Merrill Lynch would enter into an agreement, for an initial three-year period and automatically renewable from year to year thereafter, in connection with the Transaction under which Merrill Lynch- affiliated broker-dealers would continue to offer the Fund as an investment product; * that BlackRock Advisors would have substantially the same access to the Merrill Lynch sales force when distributing shares of the Fund as was currently being provided to the Previous Investment Adviser and that other arrangements between the Previous Investment Adviser and Merrill Lynch sales channels would be preserved; * that the Fund would have access to BlackRock's network of third party brokers, retirement plan platforms and registered investment advisers; * that in connection with the Transaction, Merrill Lynch and BlackRock had agreed to conduct, and use reasonable best efforts to cause their respective affiliates to conduct, their respective businesses in compliance with the conditions of Section 15(f) of the Investment Company Act of 1940 (the "1940 Act") in relation to any public funds advised by BlackRock or the Previous Investment Adviser (or affiliates), respectively; and * that, Merrill Lynch and BlackRock would derive benefits from the Transaction and that, as a result, they had a financial interest in the matters being considered that was different from that of Fund or Trust shareholders. Each Board considered the information provided by Merrill Lynch and BlackRock above, and, among other factors, the following: * the potential benefits to Fund and Trust shareholders from being part of a combined fund family with BlackRock-sponsored funds, including possible economies of scale and access to investment opportunities; * the potential for expanding distribution of Fund shares through improved access to third party distribution; * the reputation, financial strength and resources of BlackRock and its investment advisory subsidiaries and the anticipated financial strength and resources of New BlackRock; * the compliance policies and procedures of BlackRock Advisors; * the terms and conditions of the BlackRock Investment Advisory Agreements, including the fact that the schedule of the Fund's/Trust's total advisory fees would not increase under the BlackRock Investment Advisory Agreements, but would remain the same; * that in February 2006, each Board had performed a full annual review of each respective Previous Investment Advisory Agreement, as required by the 1940 Act, and had determined that the Previous Investment Adviser had the capabilities, resources and personnel necessary to provide the advisory and administrative services that were then being provided to the Fund/Trust; and that the advisory and/or management fees paid by the Fund/Trust, taking into account any applicable agreed-upon fee waivers and breakpoints, had represented reasonable compensation to the Previous Investment Adviser in light of the services provided, the costs to the Previous Investment Adviser of providing those services, economies of scale, the fees and other expenses paid by similar funds (including information provided by Lipper Inc. ["Lipper"]), and such other matters as the directors/trustees had considered relevant in the exercise of their reasonable judgment; and * that Merrill Lynch had agreed to pay all expenses of the Fund and Trust in connection with the Board's consideration of the BlackRock Investment Advisory Agreements and related agreements and all costs of shareholder approval of the BlackRock Investment Advisory Agreements and as a result the Fund and the Trust would bear no costs in obtaining shareholder approval of the BlackRock Investment Advisory Agreements. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Disclosure of New Investment Advisory Agreement (continued) Certain of these considerations are discussed in more detail below. In its review of the respective BlackRock Investment Advisory Agreements, each Board assessed the nature, quality and scope of the services to be provided to the Fund and the Trust by the personnel of BlackRock Advisors and its affiliates, including administrative services, shareholder services, oversight of fund accounting, marketing services and assistance in meeting legal and regulatory requirements. In its review of the respective BlackRock Investment Advisory Agreement, each Board also considered a range of information in connection with its oversight of the services to be provided by BlackRock Advisors and its affiliates. Among the matters considered were: (a) fees (in addition to management fees) to be paid to BlackRock Advisors and its affiliates by the Fund and the Trust; (b) Fund and Trust operating expenses paid to third parties; (c) the resources devoted to and compliance reports relating to the Fund's and the Trust's investment objective, policies and restrictions, and their compliance with their Code of Ethics and BlackRock Advisors' compliance policies and procedures; and (d) the nature, cost and character of non-investment management services to be provided by BlackRock Advisors and its affiliates. In the period prior to the Board meetings to consider renewal of the Previous Investment Advisory Agreements, each Board had requested and received materials specifically relating to the Previous Investment Advisory Agreements. These materials included (a) information compiled by Lipper on the fees and expenses and the investment performance of the Fund as compared to a comparable group of funds as classified by Lipper; (b) a discussion by the Fund's/Trust's portfolio management team on investment strategies used by the Fund/Trust during its most recent fiscal year; (c) information on the profitability to the Previous Investment Adviser of the Previous Investment Advisory Agreements and other payments received by the Previous Investment Adviser and its affiliates from the Fund and the Trust; and (d) information provided by the Previous Investment Adviser concerning services related to the valuation and pricing of the Trust's portfolio holdings, allocation of Trust brokerage fees, the Trust's portfolio turnover statistics, and direct and indirect benefits to the Previous Investment Adviser and its affiliates from their relationship with the Fund and the Trust. In its deliberations, each Board considered information received in connection with its most recent approval of the continuance of the respective Previous Investment Advisory Agreement, in addition to information provided by BlackRock and BlackRock Advisors in connection with their evaluation of the terms and conditions of the BlackRock Investment Advisory Agreements. The directors/ trustees did not identify any particular information that was all-important or controlling, and each director/trustee attributed different weights to the various factors. The directors/trustees made their determinations separately in respect of the Fund and the Trust. Each Board, including a majority of the Board's independent directors/trustees, concluded that the terms of the respective BlackRock Investment Advisory Agreement are appropriate, that the fees to be paid are reasonable in light of the services to be provided to the Fund/Trust, and that the BlackRock Investment Advisory Agreement should be approved and recommended to Fund/Trust shareholders. Nature, Quality and Extent of Services Provided--Each Board reviewed the nature, quality and extent of services provided by the Previous Investment Adviser, including the investment advisory services and the resulting performance of the Fund and the Trust, as well as the nature, quality and extent of services expected to be provided by BlackRock Advisors. Each Board focused primarily on the Previous Investment Adviser's investment advisory services and the investment performance of the Fund and the Trust, but also considered certain areas in which both the Previous Investment Adviser and the Fund/Trust received services as part of the Merrill Lynch complex. Each Board compared the Fund's performance - both including and excluding the effects of fees and expenses - to the performance of a comparable group of mutual funds, and the performance of a relevant index or combination of indexes. While each Board reviews performance data at least quarterly, consistent with the Previous Investment Adviser's investment goals, the Board attaches more importance to performance over relatively long periods of time, typically three to five years. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 In evaluating the nature, quality and extent of the services to be provided by BlackRock Advisors under the BlackRock Investment Advisory Agreements, each Board considered, among other things, the expected impact of the Transaction on the operations, facilities, organization and personnel of New BlackRock and how it would affect the Fund and the Trust; the ability of BlackRock Advisors to perform its duties after the Transaction; and any anticipated changes to the investment and other practices of the Fund or the Trust. The directors/ trustees considered the fact that it was being proposed that the Fund acquire the assets and liabilities of the BlackRock Intermediate Term Portfolio of BlackRock Bond Fund, Inc., as part of a reorganization. Each Board was given information with respect to the potential benefits to the Fund and the Trust and their shareholders from having access to BlackRock's state of the art technology and risk management analytic tools, including the investment tools provided under the BlackRock Solutions brand name. Each Board was advised that, as a result of Merrill Lynch's equity interest in BlackRock after the Transaction, the Fund and the Trust would continue to be subject to restrictions concerning certain transactions involving Merrill Lynch affiliates (for example, transactions with a Merrill Lynch broker-dealer acting as principal) absent revised or new regulatory relief. Each Board was advised that a revision of existing regulatory relief with respect to these restrictions was being sought from the Securities and Exchange Commission and was advised of the possibility of receipt of such revised regulatory relief. Based on their review of the materials provided and the assurances they had received from the management of Merrill Lynch and of BlackRock, the directors/ trustees determined that the nature and quality of services to be provided to the Fund/Trust under the BlackRock Investment Advisory Agreements were expected to be as good as or better than that provided under the Previous Investment Advisory Agreements. It was noted, however, that changes in personnel were expected to follow the Transaction and the combination of the operations of the Previous Investment Adviser and its affiliates with those of BlackRock. The directors/trustees noted that if portfolio managers or other personnel were to cease to be available prior to the closing of the Transaction, each Board would consider all available options, including seeking the investment advisory or other services of BlackRock affiliates. Accordingly, each Board concluded that, overall, the Board was satisfied at the present time with assurances from BlackRock and BlackRock Advisors as to the expected nature, quality and extent of the services to be provided to the Fund/Trust under the BlackRock Investment Advisory Agreements. Costs of Services Provided and Profitability--It was noted that, in conjunction with its recent review of the respective Previous Investment Advisory Agreement, each Board had received, among other things, a report from Lipper comparing the Fund's fees and expenses to those of a peer group selected by Lipper, and information as to the fees charged by the Previous Investment Adviser or its affiliates to other registered investment company clients for investment management services. Each Board reviewed the Fund's/Trust's contractual management fee rate and actual management fee rate as a percentage of total assets at common asset levels - the actual rate includes advisory fees and the effects of any fee waivers - compared to the other funds in the Fund's Lipper category. Each Board also compared the Fund's/Trust's total expenses to those of other comparable funds. The information showed that the Fund/Trust had fees and expenses within the range of fees and expenses of comparable funds. Each Board considered the services to be provided by and the fees to be charged by BlackRock Advisors to other funds with similar investment mandates and noted that the fees charged by BlackRock Advisors in those cases, including fee waivers and expense reimbursements, were generally comparable to those being charged to the Fund/Trust. The Boards also noted that, as a general matter, according to the information provided by BlackRock, fees charged to institutional clients were lower than the fees charged to the Fund, but BlackRock Advisors provided less extensive services to such clients. Each Board concluded that the Fund's/Trust's management fee and fee rate and overall expense ratio are reasonable compared to those of other comparable funds. In evaluating the costs of the services to be provided by BlackRock Advisors under the BlackRock Investment Advisory Agreements, each Board considered, among other things, whether advisory fees or other expenses would change as a result of the Transaction. Based on their review of the materials provided and the fact that each BlackRock Investment Advisory Agreement is substantially similar to the respective Previous Investment Advisory Agreement in all material respects, including the rate of compensation, each Board determined that the Transaction should not increase the total fees payable, including any fee waivers and expense reimbursements, for advisory and administrative services. Each Board noted that it was not possible to predict how the Transaction would affect BlackRock Advisors' profitability from its relationship with the Fund and the Trust. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Disclosure of New Investment Advisory Agreement (concluded) Each Board discussed with BlackRock Advisors its general methodology to be used in determining New BlackRock's profitability with respect to its relationship with the Fund and the Trust. The directors/trustees noted that they expect to receive profitability information from BlackRock Advisors on at least an annual basis and thus be in a position to evaluate whether any adjustments in the Fund's/Trust's fees and/or fee breakpoints would be appropriate. Fees and Economies of Scale--Each Board considered the extent to which economies of scale might be realized as the assets of the Fund and the Trust increase and whether there should be changes in the management fee rate or structure in order to enable the Fund and the Trust to participate in these economies of scale. Each Board determined that changes were not currently necessary. In reviewing the Transaction, each Board considered, among other things, whether advisory fees or other expenses would change as a result of the Transaction. Based on the fact that the BlackRock Investment Advisory Agreements are substantially similar to the Previous Investment Advisory Agreements in all material respects, including the rates of compensation, each Board determined that as a result of the Transaction, the Fund's/Trust's total advisory fees would be no higher than the fees under the Previous Investment Advisory Agreements. Each Board noted that in conjunction with the most recent deliberations concerning the Previous Investment Advisory Agreements, the directors/trustees had determined that the total fees for advisory and administrative services for the Fund and the Trust were reasonable in light of the services provided. It was noted that in conjunction with the recent review of the Previous Investment Advisory Agreements, the Boards had received, among other things, a report from Lipper comparing the Fund's/Trust's fees, expenses and performance to those of a peer group selected by Lipper, and information as to the fees charged by the Previous Investment Adviser to other registered investment company clients for investment management services. Each Board concluded that because the rates for advisory fees for the Fund/Trust would be no higher than the fee rates in effect at the time, the proposed management fee structures, including any fee waivers, were reasonable and that no additional changes were currently necessary. Fall-Out Benefits--In evaluating the fall-out benefits to be received by BlackRock Advisors under the BlackRock Investment Advisory Agreements, each Board considered whether BlackRock Advisors would experience such benefits to the same extent that the Previous Investment Adviser was experiencing such benefits under the Previous Investment Advisory Agreements. Based on their review of the materials provided, including materials received in connection with their most recent approval of the continuance of the Previous Investment Advisory Agreements, and their discussions with management of the Previous Investment Adviser and BlackRock, the directors/trustees determined that BlackRock Advisors' fall-out benefits could include increased ability for BlackRock to distribute shares of its funds and other investment products and to obtain research services using the Trust's portfolio transaction brokerage commissions. Each Board noted that fall-out benefits were difficult to quantify with certainty at this time, and indicated that the Board would continue to evaluate them going forward. Investment Performance--Each Board considered investment performance for the Fund and the Trust. Each Board compared the Fund's/Trust's performance - both including and excluding the effects of fees and expenses - to the performance of a comparable group of mutual funds, and the performance of a relevant index or combination of indexes. The comparative information received from Lipper showed Fund performance at various levels within the range of performance of comparable funds over different time periods. While each Board reviews performance data at least quarterly, consistent with the Previous Investment Adviser's investment goals, the Board attaches more importance over relatively long periods of time, typically three to five years. Each Board believed the Fund's performance was satisfactory. Also, each Board took into account the investment performance of funds advised by BlackRock Advisors. Each Board considered comparative information from Lipper which showed that the performance of the funds advised by BlackRock Advisors was within the range of performance of comparable funds over different time periods. Each Board noted BlackRock's considerable investment management experience and capabilities, but was unable to predict what effect, if any, consummation of the Transaction would have on the future performance of the Fund. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Conclusion--After the independent directors of the Fund and the independent trustees of the Trust deliberated in executive session, each entire Board, including the independent directors/trustees, approved the respective BlackRock Investment Advisory Agreement, concluding that the advisory fee rate was reasonable in relation to the services provided and that the BlackRock Investment Advisory Agreement was in the best interests of the Fund's/Trust's shareholders. In approving the respective BlackRock Investment Advisory Agreement, each Board noted that it anticipated reviewing the continuance of the agreement in advance of the expiration of the initial two-year period. New BlackRock Sub-Advisory Agreement--Matters Considered by the Boards At an in-person meeting held on August 14-16, 2006, the Board of Directors of the Fund, including the independent directors, and the Board of Trustees of the Trust, including the independent trustees, discussed and approved the respective sub-advisory agreement (each, a "BlackRock Sub-Advisory Agreement" and, together, the "BlackRock Sub-Advisory Agreements") between BlackRock Advisors and its affiliate, BlackRock Financial Management, Inc. (the "Sub- Adviser") for each of the Fund and the Trust. The BlackRock Sub-Advisory Agreements became effective on September 29, 2006, at the same time the BlackRock Investment Advisory Agreements became effective. Pursuant to the BlackRock Sub-Advisory Agreement, the Sub-Adviser receives a monthly fee from BlackRock Advisors equal to 59% of the advisory fee received by BlackRock Advisors from the Fund and the Trust. BlackRock Advisors pays the Sub-Adviser out of its own resources, and there is no increase in Fund or Trust expenses as a result of the BlackRock Sub-Advisory Agreements. In approving each respective BlackRock Sub-Advisory Agreement at the August in- person meeting, each Board reviewed its considerations in connection with its approval of the BlackRock Investment Advisory Agreements in May 2006. The Boards relied on the same information and considered the same factors as those discussed above in connection with the approval of the BlackRock Investment Advisory Agreements, and came to the same conclusions. In reviewing the sub- advisory fee rate provided in each BlackRock Sub-Advisory Agreement, each Board noted the fact that both BlackRock Advisors and the Sub-Adviser have significant responsibilities under their respective advisory agreements. BlackRock Advisors remains responsible for oversight of the Fund's and the Trust's operations and administration, and the Sub-Adviser provides advisory services to the Fund/Trust and is responsible for the day-to-day management of the Fund's/Trust's portfolio under the BlackRock Sub-Advisory Agreements. The Boards also took into account the fact that there is no increase in total advisory fees paid by the Fund or the Trust as a result of the BlackRock Sub- Advisory Agreements. Under all of the circumstances, each Board concluded that it was a reasonable allocation of fees for the Sub-Adviser to receive 59% of the advisory fee paid to BlackRock Advisors. After the independent directors of the Fund and the independent trustees of the Trust deliberated in executive session, each entire Board, including the independent directors/trustees, approved the respective BlackRock Sub-Advisory Agreement, concluding that the sub-advisory fee was reasonable in relation to the services provided and that the BlackRock Sub-Advisory Agreement was in the best interests of Fund/Trust shareholders. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 BlackRock Privacy Principles BlackRock is committed to maintaining the privacy of its current and former fund investors and individual clients (collectively, "Clients") and to safeguarding their nonpublic personal information. The following information is provided to help you understand what personal information BlackRock collects, how we protect that information and why in certain cases we share such information with select parties. If you are located in a jurisdiction where specific laws, rules or regulations require BlackRock to provide you with additional or different privacy-related rights beyond what is set forth below, then BlackRock will comply with those specific laws, rules or regulations. BlackRock obtains or verifies personal nonpublic information from and about you from different sources, including the following: (i) information we receive from you or, if applicable, your financial intermediary, on applications, forms or other documents; (ii) information about your transactions with us, our affiliates, or others; (iii) information we receive from a consumer reporting agency; and (iv) from visits to our Web sites. BlackRock does not sell or disclose to nonaffiliated third parties any nonpublic personal information about its Clients, except as permitted by law or as is necessary to service Client accounts. These nonaffiliated third parties are required to protect the confidentiality and security of this information and to use it only for its intended purpose. We may share information with our affiliates to service your account or to provide you with information about other BlackRock products or services that may be of interest to you. In addition, BlackRock restricts access to nonpublic personal information about its Clients to those BlackRock employees with a legitimate business need for the information. BlackRock maintains physical, electronic and procedural safeguards that are designed to protect the nonpublic personal information of its Clients, including procedures relating to the proper storage and disposal of such information. Officers and Directors/Trustees Number of Portfolios in Other Public Fund Complex Directorships Position(s) Length of Overseen by Held by Held with Time Director/ Director/ Name, Address & Age Fund Served Principal Occupation(s) During Past 5 Years Trustee Trustee Interested Director Robert C. Doll, Jr.* President 2005 to Vice Chairman and Director of BlackRock, and 129 Funds None P.O. Box 9011 and present Global Chief Investment Officer for Equities, 174 Portfolios Princeton, Director/ Chairman of the BlackRock Private Client NJ 08543-9011 Trustee Operating Committee, and member of the Age: 52 BlackRock Executive Committee since 2006; President of the Funds advised by Merrill Lynch Investment Managers ("MLIM") and its affiliates ("MLIM/FAM-advised funds") from 2005 to 2006 and Chief Investment Officer thereof from 2001 to 2006; President of MLIM and Fund Asset Management, L.P. ("FAM") from 2001 to 2006; Co-Head (Americas Region) thereof from 2000 to 2001 and Senior Vice President from 1999 to 2001; President and Director of Princeton Services, Inc. ("Princeton Services") since 2001; President of Princeton Administrators, L.P. ("Princeton Administrators") from 2001 to 2006; Chief Investment Officer of OppenheimerFunds, Inc. in 1999 and Executive Vice President thereof from 1991 to 1999. * Mr. Doll is a director, trustee or member of an advisory board of certain other investment companies for which BlackRock acts as investment adviser. Mr. Doll is an "interested person," as described in the Investment Company Act, of the Fund based on his current and former positions with BlackRock, Inc. and its affiliates. Directors/Trustees serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. As Fund President, Mr. Doll serves at the pleasure of the Board of Directors/Trustees. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Officers and Directors/Trustees (continued) Number of Portfolios in Other Public Fund Complex Directorships Position(s) Length of Overseen by Held by Held with Time Director/ Director/ Name, Address & Age Fund Served Principal Occupation(s) During Past 5 Years Trustee Trustee Independent Directors/Trustees* Ronald W. Forbes** Director/ 1981 to Professor Emeritus of Finance, School of 50 Funds None P.O. Box 9095 Trustee present Business,State University of New York at 52 Portfolios Princeton, Albany since 2000 and Professor thereof from NJ 08543-9095 1989 to 2000; International Consultant, Urban Age: 66 Institute, Washington, D.C. from 1995 to 1999. Cynthia A. Montgomery Director/ 1994 to Professor, Harvard Business School since 1989; 50 Funds Newell P.O. Box 9095 Trustee present Associate Professor, J.L. Kellogg Graduate School 52 Portfolios Rubbermaid, Inc. Princeton, of Management, Northwestern University from (manufacturing) NJ 08543-9095 1985 to 1989; Associate Professor, Graduate Age: 54 School of Business Administration, University of Michigan from 1979 to 1985; Director, Harvard Business School Publishing since 2005; Director, McLean Hospital since 2005. Jean Margo Reid Director/ 2004 to Self-employed consultant since 2001; Counsel 50 Funds None P.O. Box 9095 Trustee present of Alliance Capital Management (investment 52 Portfolios Princeton, adviser) in 2000; General Counsel, Director and NJ 08543-9095 Secretary of Sanford C. Bernstein & Co., Inc. Age: 61 (investment adviser/broker-dealer) from 1997 to 2000; Secretary, Sanford C. Bernstein Fund, Inc. from 1994 to 2000; Director and Secretary of SCB, Inc. since 1998; Director and Secretary of SCB Partners, Inc. since 2000; and Director of Covenant House from 2001 to 2004. Roscoe S. Suddarth Director/ 2000 to President, Middle East Institute, from 1995 to 50 Funds None P.O. Box 9095 Trustee present 2001; Foreign Service Officer, United States 52 Portfolios Princeton, Foreign Service, from 1961 to 1995 and Career NJ 08543-9095 Minister from 1989 to 1995; Deputy Inspector Age: 71 General, U.S. Department of State, from 1991 to 1994; U.S. Ambassador to the Hashemite Kingdom of Jordan from 1987 to 1990. Richard R. West Director/ 1980 to Professor of Finance from 1984 to 1995, Dean 50 Funds Bowne & Co., P.O. Box 9095 Trustee present from 1984 to 1993 and since 1995 Dean 52 Portfolios Inc. (financial Princeton, Emeritus of New York University's Leonard N. printers); NJ 08543-9095 Stern School of Business Administration. Vornado Realty Age: 68 Trust (real estate company); Alexander's, Inc. (real estate company) Edward D. Zinbarg Director/ 2000 to Self-employed financial consultant since 1994; 50 Funds None P.O. Box 9095 Trustee present Executive Vice President of the Prudential 52 Portfolios Princeton, Insurance Company of America from 1988 to NJ 08543-9095 1994; Former Director of Prudential Reinsurance Age: 71 Company and former Trustee of the Prudential Foundation. * Directors/Trustees serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. ** Chairman of the Board of Directors/Trustees and the Audit Committee. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Officers and Directors/Trustees (concluded) Position(s) Length of Held with Time Name, Address & Age Fund Served Principal Occupation(s) During Past 5 Years Fund Officers* Donald C. Burke Vice 1993 to Managing Director of BlackRock since 2006; Managing Director of MLIM and FAM P.O. Box 9011 President present from 2006; First Vice President of MLIM and FAM from 1997 to 2005 and Treasurer Princeton, and and thereof from 1999 to 2006; Vice President of MLIM and FAM from 1990 to 1997. NJ 08543-9011 Treasurer 1999 to Age: 46 present Jeffrey Hiller Fund Chief 2004 to Managing Director of BlackRock and Fund Chief Compliance Officer since 2006; Chief P.O. Box 9011 Compliance present Compliance Officer of the MLIM/FAM-advised funds and First Vice President and Chief Princeton, Officer Compliance Officer of MLIM (Americas Region) from 2004 to 2006; Chief Compliance NJ 08543-9011 Officer of the IQ Funds since 2004; Global Director of Compliance at Morgan Stanley Age: 55 Investment Management from 2002 to 2004; Managing Director and Global Director of Compliance at Citigroup Asset Management from 2000 to 2002; Chief Compliance Officer at Soros Fund Management in 2000; Chief Compliance Officer at Prudential Financial from 1995 to 2000; Senior Counsel in the Securities and Exchange Commission's Division of Enforcement in Washington, D.C. from 1990 to 1995. Alice A. Pellegrino Secretary 2004 to Director of BlackRock since 2006; Director (Legal Advisory) of MLIM from 2002 to P.O. Box 9011 present 2006; Vice President of MLIM from 1999 to 2002; Attorney associated with MLIM Princeton, from 1997 to 2006; Secretary of MLIM, FAM, FAMD and Princeton Services from NJ 08543-9011 2004 to 2006. Age: 46 * Officers of the Fund serve at the pleasure of the Board of Directors/Trustees. Further information about the Fund's Officers and Directors/Trustees is available in the Fund's Statement of Additional Information, which can be obtained without charge by calling 1-800-441-7762. Custodian State Street Bank and Trust Company P.O. Box 351 Boston, MA 02101 Transfer Agent Pre Transaction (Until September 29, 2006) Financial Data Services, Inc. 4800 Deer Lake Drive East Jacksonville, FL 32246-6484 Post Transaction (After September 29, 2006) PFPC Inc. Wilmington, DE 19809 Availability of Quarterly Schedule of Investments The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission ("SEC") for the first and third quarters of each fiscal year on Form N-Q. The Fund's Forms N-Q are available on the SEC's Web site at http://www.sec.gov. The Fund's Forms N-Q may also be reviewed and copied at the SEC's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. Electronic Delivery Electronic copies of most financial reports and prospectuses are available on the Fund's Web site. Shareholders can sign up for e-mail notifications of quarterly statements, annual and semi-annual reports and prospectuses by enrolling in the Fund's electronic delivery program. To enroll: Shareholders Who Hold Accounts with Investment Advisers, Banks or Brokerages: Please contact your financial adviser. Please note that not all investment advisers, banks or brokerages may offer this service. Shareholders Who Hold Accounts Directly with BlackRock: 1) Access the BlackRock Web site at http://www.blackrock.com/edelivery 2) Log into your account BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 A World-Class Mutual Fund Family BlackRock now offers an expanded lineup of open-end mutual funds. Our range includes more than 85 funds crossing all investment styles and managed by experts in equity, fixed income and tax-exempt investing. Equity Portfolios BlackRock All-Cap Global Resources Portfolio BlackRock Aurora Portfolio BlackRock Asset Allocation Portfolio++ BlackRock Balanced Capital Fund++ BlackRock Basic Value Fund BlackRock Developing Capital Markets Fund BlackRock Equity Dividend Fund BlackRock EuroFund BlackRock Focus Twenty Fund BlackRock Focus Value Fund BlackRock Fundamental Growth Fund BlackRock Global Allocation Fund++ BlackRock Global Dynamic Equity Fund BlackRock Global Financial Services Fund BlackRock Global Growth Fund BlackRock Global Opportunities Portfolio BlackRock Global Resources Portfolio* BlackRock Global Science & Technology Opportunities Portfolio BlackRock Global SmallCap Fund BlackRock Global Technology Fund BlackRock Global Value Fund BlackRock Healthcare Fund BlackRock Health Sciences Opportunities Portfolio BlackRock Index Equity Portfolio* BlackRock International Fund BlackRock International Index Fund BlackRock International Opportunities Portfolio* BlackRock International Value Fund BlackRock Investment Trust BlackRock Large Cap Core Fund BlackRock Large Cap Growth Fund BlackRock Large Cap Value Fund BlackRock Latin America Fund BlackRock Legacy Portfolio BlackRock Mid-Cap Growth Equity Portfolio BlackRock Mid-Cap Value Equity Portfolio BlackRock Mid Cap Value Opportunities Fund BlackRock Natural Resources Trust BlackRock Pacific Fund BlackRock Small Cap Core Equity Portfolio BlackRock Small Cap Growth Equity Portfolio BlackRock Small Cap Growth Fund II BlackRock Small Cap Index Fund BlackRock Small Cap Value Equity Portfolio* BlackRock Small/Mid-Cap Growth Portfolio BlackRock S&P 500 Index Fund BlackRock U.S. Opportunities Portfolio BlackRock Utilities and Telecommunications Fund BlackRock Value Opportunities Fund Fixed Income Portfolios BlackRock Bond Fund BlackRock Enhanced Income Portfolio BlackRock GNMA Portfolio BlackRock Government Income Portfolio BlackRock High Income Fund BlackRock High Yield Bond Portfolio BlackRock Inflation Protected Bond Portfolio BlackRock Intermediate Bond Portfolio BlackRock Intermediate Bond Portfolio II BlackRock Intermediate Government Bond Portfolio BlackRock International Bond Portfolio BlackRock Low Duration Bond Portfolio BlackRock Managed Income Portfolio BlackRock Real Investment Fund BlackRock Short-Term Bond Fund BlackRock Total Return Portfolio BlackRock Total Return Portfolio II BlackRock World Income Fund Municipal Bond Portfolios BlackRock AMT-Free Municipal Bond Portfolio BlackRock California Insured Municipal Bond Fund BlackRock Delaware Municipal Bond Portfolio BlackRock Florida Municipal Bond Fund BlackRock High Yield Municipal Fund BlackRock Intermediate Municipal Fund BlackRock Kentucky Municipal Bond Portfolio BlackRock Municipal Insured Fund BlackRock National Municipal Fund BlackRock New Jersey Municipal Bond Fund BlackRock New York Municipal Bond Fund BlackRock Ohio Municipal Bond Portfolio BlackRock Pennsylvania Municipal Bond Fund BlackRock Short-Term Municipal Fund Money Market Portfolios BlackRock Money Market Portfolio BlackRock Municipal Money Market Portfolio+++ BlackRock NC Municipal MM Portfolio+++ BlackRock NJ Municipal MM Portfolio+++ BlackRock OH Municipal MM Portfolio+++ BlackRock PA Municipal MM Portfolio+++ BlackRock Summit Cash Reserves Fund* BlackRock U.S. Treasury MM Portfolio BlackRock VA Municipal MM Portfolio+++ * See the prospectus for information on specific limitations on investments in the fund. ++ Mixed asset fund. +++ Tax-exempt fund. BlackRock mutual funds are distributed by BlackRock Distributors, Inc. You should consider the investment objectives, risks, charges and expenses of the funds under consideration carefully before investing. Each fund's prospectus contains this and other information and is available at www.blackrock.com or by calling 800-882-0052 or from your financial advisor. The prospectus should be read carefully before investing. BLACKROCK BOND FUND OF BLACKROCK BOND FUND, INC. SEPTEMBER 30, 2006 Item 2 - Code of Ethics - 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 at www.blackrock.com. Item 3 - Audit Committee Financial Expert - 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) Ronald W. Forbes, (2) Richard R. West, and (3) Edward D. Zinbarg. Item 4 - Principal Accountant Fees and Services BlackRock Bond Fund (a) Audit Fees - Fiscal Year Ending September 30, 2006 - $6,600 Fiscal Year Ending September 30, 2005 - $6,500 (b) Audit-Related Fees - Fiscal Year Ending September 30, 2006 - $0 Fiscal Year Ending September 30, 2005 - $0 (c) Tax Fees - Fiscal Year Ending September 30, 2006 - $6,000 Fiscal Year Ending September 30, 2005 - $7,615 The nature of the services include tax compliance, tax advice and tax planning. (d) All Other Fees - Fiscal Year Ending September 30, 2006 - $0 Fiscal Year Ending September 30, 2005 - $0 Master Bond Trust (a) Audit Fees - Fiscal Year Ending September 30, 2006 - $45,500 Fiscal Year Ending September 30, 2005 - $43,000 (b) Audit-Related Fees - Fiscal Year Ending September 30, 2006 - $0 Fiscal Year Ending September 30, 2005 - $0 (c) Tax Fees - Fiscal Year Ending September 30, 2006 - $ 9,200 Fiscal Year Ending September 30, 2005 - $10,300 The nature of the services include tax compliance, tax advice and tax planning. (d) All Other Fees - Fiscal Year Ending September 30, 2006 - $0 Fiscal Year Ending September 30, 2005 - $0 (e)(1) The registrant's audit committee (the "Committee") has adopted policies and procedures with regard to the pre-approval of services. Audit, audit-related and tax compliance services provided to the registrant on an annual basis require specific pre- approval by the Committee. The Committee also must approve other non-audit services provided to the registrant and those non-audit services provided to the registrant's affiliated service providers that relate directly to the operations and the financial reporting of the registrant. Certain of these non-audit services that the Committee believes are a) consistent with the SEC's auditor independence rules and b) routine and recurring services that will not impair the independence of the independent accountants may be approved by the Committee without consideration on a specific case- by-case basis ("general pre-approval"). However, such services will only be deemed pre-approved provided that any individual project does not exceed $5,000 attributable to the registrant or $50,000 for all of the registrants the Committee oversees. Any proposed services exceeding the pre-approved cost levels will require specific pre-approval by the Committee, as will any other services not subject to general pre-approval (e.g., unanticipated but permissible services). The Committee is informed of each service approved subject to general pre-approval at the next regularly scheduled in-person board meeting. (e)(2) 0% (f) Not Applicable (g) Fiscal Year Ending September 30, 2006 - $3,050,250 Fiscal Year Ending September 30, 2005 - $6,827,388 (h) The registrant's audit committee has considered and determined that the provision of non-audit services that were rendered to the registrant's 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. Regulation S-X Rule 2-01(c)(7)(ii) - $1,739,500 , 0% Item 5 - Audit Committee of Listed Registrants - Not Applicable Item 6 - Schedule of Investments - Not Applicable Item 7 - Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies - Not Applicable Item 8 - Portfolio Managers of Closed-End Management Investment Companies - Not Applicable Item 9 - Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers - Not Applicable Item 10 - Submission of Matters to a Vote of Security Holders - The registrant's Nominating Committee will consider nominees to the Board recommended by shareholders when a vacancy becomes available. Shareholders who wish to recommend a nominee should send nominations which include biographical information and sets forth the qualifications of the proposed nominee to the registrant's Secretary. There have been no material changes to these procedures. Item 11 - Controls and Procedures 11(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. 11(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the second fiscal half- year of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 12 - Exhibits attached hereto 12(a)(1) - Code of Ethics - See Item 2 12(a)(2) - Certifications - Attached hereto 12(a)(3) - Not Applicable 12(b) - Certifications - Attached hereto Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. BlackRock Bond Fund of BlackRock Bond Fund, Inc. and Master Bond Trust By: /s/ Robert C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer of BlackRock Bond Fund of BlackRock Bond Fund, Inc. and Master Bond Trust Date: November 17, 2006 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By: /s/ Robert C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer of BlackRock Bond Fund of BlackRock Bond Fund, Inc. and Master Bond Trust Date: November 17, 2006 By: /s/ Donald C. Burke ----------------------- Donald C. Burke, Chief Financial Officer of BlackRock Bond Fund of BlackRock Bond Fund, Inc. and Master Bond Trust Date: November 17, 2006