UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSRS CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-09637 811-09739 Name of Fund: Merrill Lynch Large Cap Series Fund, Inc. Master Large Cap Series 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, Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series 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: 10/31/06 Date of reporting period: 11/01/05 - 04/30/06 Item 1 - Report to Stockholders Semi-Annual Reports April 30, 2006 Merrill Lynch Large Cap Series Funds, Inc. A Letter From the President [PHOTO OMITTED] Dear Shareholder You may be aware that changes are on the horizon at Merrill Lynch Investment Managers ("MLIM"). On February 15, 2006, Merrill Lynch announced plans to combine the firm's investment advisory business, including MLIM, with another highly regarded investment manager -- BlackRock, Inc. ("BlackRock"). We believe this merger of asset management strength will benefit our investors. MLIM is a leading investment management organization with over $576 billion in assets under management globally and 2,757 employees in 17 countries. It offers over 100 investment strategies in vehicles ranging from mutual funds to institutional portfolios. BlackRock is one of the largest publicly traded investment management firms in the United States with $463.1 billion in assets under management and 1,839 employees. It manages assets on behalf of institutional and individual investors worldwide through a variety of equity, fixed income, liquidity and alternative investment products. At the completion of the transaction, which is expected in the third quarter of this year, the resultant firm will be a top-10 investment manager worldwide with over $1 trillion in assets under management.* The combined company will provide a wider selection of high-quality investment solutions across a range of asset classes and investment styles. MLIM and BlackRock possess complementary capabilities that together create a well-rounded organization uniting some of the finest money managers in the industry. At the same time, the firms share similar values and beliefs -- they are focused on delivering excellence on behalf of clients, and both make investment performance their single most important mission. In short, the merger only reinforces our commitment to shareholders. Most of MLIM's investment products -- including mutual funds, separately managed accounts, annuities and variable insurance funds -- eventually will carry the "BlackRock" name. As a shareholder in one or more MLIM-advised mutual funds, you will receive a proxy package in the coming weeks in connection with this transaction. After you receive this information, should you have any questions or concerns, do not hesitate to contact your financial advisor. As always, we thank you for entrusting us with your investment assets, and we look forward to continuing to serve your investment needs with even greater strength and scale as the new BlackRock. Sincerely, /s/ Robert C. Doll, Jr. Robert C. Doll, Jr. President and Chief Investment Officer Merrill Lynch Investment Managers * $1.039 trillion in assets under management as of March 31, 2006. Data, including assets under management, are as of March 31, 2006. 2 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 We are pleased to present to you the management team of Merrill Lynch Large Cap Series Funds, Inc. [PHOTO OMITTED] [PHOTO OMITTED] Senior Portfolio Manager Bob Doll, President and Chief Investment Officer of Merrill Lynch Investment Managers, joined Merrill Lynch Investment Managers in 1999. He is the head of Merrill Lynch Large Cap Series Funds, Inc. Mr. Doll received bachelor's degrees from Lehigh University and an MBA from The Wharton School of the University of Pennsylvania. He is a CFA(R) charterholder and a Certified Public Accountant. Mr. Doll's investment team includes Senior Quantitative Analyst Tasos Bouloutas, Director of Equity Operations Brenda Sklar and Fundamental Analyst Dan Hanson. Mr. Bouloutas earned a master's degree and a Ph.D. from Columbia University. Ms. Sklar earned a bachelor's degree from the University of Delaware. She is a Certified Public Accountant. Mr. Hanson received a bachelor's degree from Middlebury College and an MBA from the University of Chicago. He is a CFA charterholder and member of the CFA Institute. ================================================================================ Table of Contents Page - -------------------------------------------------------------------------------- A Letter From the President .............................................. 2 A Discussion With Your Funds' Portfolio Manager .......................... 4 Announcement to Shareholders ............................................. 6 Performance Data ......................................................... 6 Disclosure of Expenses ................................................... 10 Fund Financial Statements ................................................ 12 Fund Financial Highlights ................................................ 18 Fund Notes to Financial Statements ....................................... 28 Portfolio Information .................................................... 34 Master Schedules of Investments .......................................... 36 Master Financial Statements .............................................. 45 Master Financial Highlights .............................................. 50 Master Notes to Financial Statements ..................................... 52 Officers and Directors/Trustees .......................................... 55 CFA(R) and Chartered Financial Analyst(R) are trademarks owned by the CFA Institute. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 3 A Discussion With Your Funds' Portfolio Manager The Funds significantly outperformed their respective benchmarks and Lipper category averages for the period, benefiting largely from successful stock selection across various industry sectors. How did the Merrill Lynch Large Cap Series Funds perform during the period in light of the existing market conditions? For the six-month period ended April 30, 2006, Merrill Lynch Large Cap Core Fund's Class A, Class B, Class C, Class I and Class R Shares had total returns of +14.06%, +13.57%, +13.58%, +14.15% and +13.93%, respectively, well ahead of the +9.92% return of the benchmark Russell 1000 Index and the +11.47% average return of its comparable Lipper category of Multi-Cap Core Funds.* Merrill Lynch Large Cap Growth Fund's Class A, Class B, Class C, Class I and Class R Shares had six-month total returns of +13.99%, +13.49%, +13.51%, +14.10% and +13.89%, respectively, exceeding the +7.06% return of the benchmark Russell 1000 Growth Index and the +11.59% average return of its comparable Lipper category of Multi-Cap Growth Funds.* Merrill Lynch Large Cap Value Fund's Class A, Class B, Class C, Class I and Class R Shares had total returns of +13.61%, +13.13%, +13.13%, +13.71% and +13.40%, respectively, also surpassing the +12.87% return of its benchmark, the Russell 1000 Value Index, and the +11.99% average return of the Lipper Multi-Cap Value Funds category for the six-month period.* (Fund results shown do not reflect sales charges and would be lower if sales charges were included. Complete performance information for each Fund can be found on pages 6 - 9 of this report to shareholders.) Because the Funds invest in large-capitalization stocks that represent a significant part of the U.S. stock market, their portfolios were influenced by the same economic and market events that affected the broader stock market during the past six months. Major U.S. equity indexes rebounded from losses at the beginning of the reporting period to achieve impressive gains by April. Solid economic growth has supported job creation and strong corporate earnings growth. Merger-and-acquisition activity also has been robust during the past several months. The Federal Reserve Board (the Fed), now with new chairman Dr. Ben Bernanke, has continued to remove economic stimulus by advancing the monetary tightening campaign begun in June 2004. Through period-end, the Fed had raised the federal funds target rate in 15 consecutive moves of 25 basis points (.25%) each. A 16th move on May 10, 2006 brought the target short-term interest rate to 5%. Despite the Fed's persistence, inflation and escalating energy prices remained a concern among investors, as the price of crude oil reached record levels above $70 per barrel in April. In the meantime, the U.S. dollar hit a one-year low versus the euro and the housing market started to show some signs of weakness. Of final note, small cap stocks outperformed large caps during the six-month period, as reflected in the +18.91% return of the small cap Russell 2000 Index. What factors most influenced the Funds' performance during the period? In the case of all three Funds, stock selection contributed positively to returns in most sectors, particularly industrials (commercial services and machinery), information technology (semiconductors and computer peripherals) and materials (metals and mining). At the individual stock level, the largest positive contributors to Merrill Lynch Large Cap Core Fund's performance during the period were NuCor Corp., Western Digital Corp., Nvidia Corp., Circuit City Stores, Inc. and CSX Corp. The largest detractors were McAfee, Inc., Pioneer Natural Resources Co., Caremark Rx, Inc., Amgen, Inc. and Mercury Interactive Corp. In the Merrill Lynch Large Cap Growth Fund portfolio, the largest positive contributors to performance included Joy Global, Inc., AMR Corp., NuCor, Western Digital and Nvidia. Stocks that detracted most from that Fund's relative performance included Advanced Micro Devices, Inc., Mercury Interactive, McAfee, Harman International Industries, Inc. and Amgen. In terms of Merrill Lynch Large Cap Value Fund, the largest positive contributors to performance during the six-month period included CSX, Circuit City Stores, Office Depot, Inc., Marathon Oil Corp. and LSI Logic Corp. The * Lipper Multi-Cap funds invest in a variety of market capitalization ranges without concentrating 75% of their equity assets in any one market capitalization range over an extended period of time. Multi-Cap Core funds typically have an average price-to-earnings ratio, price-to-book ratio and three-year sales-per-share growth value compared to the S&P SuperComposite 1500 Index. Multi-Cap Growth funds typically have an above-average price-to-earnings ratio, price-to-book ratio and three-year sales-per-growth value compared to the S&P SuperComposite 1500 Index. Multi-Cap Value funds typically have a below-average price-to-earnings ratio, price-to-book ratio and three-year sales-per-growth value compared to the S&P SuperComposite 1500 Index. 4 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 largest performance detractors were Pioneer Natural Resources, Health Net, Inc., Fair Isaac Corp., Caremark Rx and McAfee. Our underweight position in medical device company Medtronic in the Large Cap Core and Large Cap Growth portfolios, and our underweight position in Symantec in all three portfolios, also had a positive impact on performance, as these were negative contributors within each of the Funds' respective benchmarks. What changes were made to the Portfolios during the period? Overall, we continued to identify companies with favorable growth characteristics and earnings developments, selling at attractive relative valuations. As a result of our bottom-up stock-selection process, we increased our positions in industrials and financials while reducing exposure to the utilities, health care and consumer discretionary sectors. In Master Large Cap Core Portfolio, the largest purchases during the period included Cisco Systems, Inc., Valero Energy Corp., Cardinal Health, Inc., JPMorgan Chase & Co. and Pioneer Natural Resources. The largest sales included Amgen, Intel Corp., UnitedHealth Group, Inc., Burlington Resources, Inc. and EOG Resources, Inc. In Master Large Cap Growth Portfolio, the largest purchases included Cisco Systems, Inc., CA Inc., Cardinal Health, Inc., Starbucks Corp. and Advanced Micro Devices, Inc. The largest sales included Intel, Amgen, UnitedHealth Group, Apple Computer and EOG Resources. In Master Large Cap Value Portfolio, the largest purchases included JPMorgan Chase, Morgan Stanley, Xerox Corp., Archer-Daniels-Midland Co. and The Bear Stearns Cos., Inc. The largest sales included Burlington Resources, Inc., The Allstate Corp., Terex Corp., Viacom, Inc. and Forest Oil Corp. These transactions reflect our ongoing refinement of the Portfolios, as we continue to look for stocks that we believe best meet our investment criteria while pruning those that have deteriorated relative to our original assessment. How would you characterize the Portfolios' positioning at the close of the period? The Portfolios' largest overweights as of April 30, 2006, were in the technology and energy sectors. The largest underweights were in financials, which tend to underperform in periods of rising interest rates, consumer staples, utilities and telecommunications services. We believe the Fed is preparing the markets for the end of its monetary tightening cycle. It is very possible that the Fed will complete its interest rate-hiking action in the second quarter, but certainly will go out of its way to tell investors that a pause does not necessarily mean an end. We have been and remain optimistic in our longer-term outlook for the economy and the markets, driven by our view that long-term inflation is likely to stay reasonably low. However, it is not surprising that investors are somewhat concerned about inflation given rising commodity prices, low unemployment and fairly broad-based global economic expansion. We would argue that economic growth in most of the world, with the notable exception of the United States, has been driven by supply-side expansion. Overall, core inflation remains low and we have seen reasonably solid economic readings. The weaker U.S. dollar is providing support for company earnings, but given the policy backdrop and higher bond yields, the near-term risks remain. As the economy shifts, equity investors should expect some bumps along the way. Against this backdrop, diversification and astute security selection remain key to investment success. Robert C. Doll, Jr. President, Director/Trustee and Senior Portfolio Manager May 15, 2006 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 5 Announcement to Shareholders On February 15, 2006, BlackRock, Inc. ("BlackRock") and Merrill Lynch & Co., Inc. ("Merrill Lynch") entered into an agreement to contribute Merrill Lynch's investment management business, Merrill Lynch Investment Managers, L.P. and certain affiliates (including Fund Asset Management, L.P. and Merrill Lynch Investment Managers International Limited), to BlackRock to create a new independent company that will be one of the world's largest asset management firms with over $1 trillion in assets under management (based on combined assets under management as of March 31, 2006). The transaction is expected to close in the third quarter of 2006, at which time the new company will operate under the BlackRock name. The Fund's/Trust's Board of Directors/Trustees has approved a new investment advisory agreement with BlackRock Advisors, Inc. or its successor ("BlackRock Advisors") on substantially the same terms and for the same advisory fee as the current investment advisory agreement with the Investment Adviser. If the new agreement is approved by the Fund's/Trust's shareholders, BlackRock Advisors is expected to become the Fund's/Trust's investment adviser upon the closing of the transaction between Merrill Lynch and BlackRock. Performance Data About Fund Performance Investors are able to purchase shares of the Funds through multiple pricing alternatives: o Class A Shares incur a maximum initial sales charge (front-end load) of 5.25% and an account maintenance fee of 0.25% per year (but no distribution fee). o Class B Shares are subject to a maximum contingent deferred sales charge of 4% declining to 0% after six years. In addition, Class B Shares are subject to a distribution fee of 0.75% per year and an account maintenance fee of 0.25% per year. These shares automatically convert to Class A Shares after approximately eight years. (There is no initial sales charge for automatic share conversions.) All returns for periods greater than eight years reflect this conversion. o Class C Shares are subject to a distribution fee of 0.75% 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. o Effective December 28, 2005, Class I Shares are no longer 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. Had the sales charge been included, the Fund's Class I Shares' performance would have been lower. o 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 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.mlim.ml.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 ex-dividend 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. 6 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Performance Data (continued) Recent Performance Results 6-Month 12-Month Since Inception As of April 30, 2006 Total Return Total Return Total Return ===================================================================================================== ML Large Cap Core Fund Class A Shares* +14.06% +25.97% + 49.63% - ----------------------------------------------------------------------------------------------------- ML Large Cap Core Fund Class B Shares* +13.57 +24.93 + 42.36 - ----------------------------------------------------------------------------------------------------- ML Large Cap Core Fund Class C Shares* +13.58 +24.94 + 42.36 - ----------------------------------------------------------------------------------------------------- ML Large Cap Core Fund Class I Shares* +14.15 +26.20 + 51.93 - ----------------------------------------------------------------------------------------------------- ML Large Cap Core Fund Class R Shares* +13.93 +25.62 + 47.92 - ----------------------------------------------------------------------------------------------------- ML Large Cap Growth Fund Class A Shares* +13.99 +24.67 + 5.15 - ----------------------------------------------------------------------------------------------------- ML Large Cap Growth Fund Class B Shares* +13.49 +23.73 + 0.12 - ----------------------------------------------------------------------------------------------------- ML Large Cap Growth Fund Class C Shares* +13.51 +23.61 + 0.03 - ----------------------------------------------------------------------------------------------------- ML Large Cap Growth Fund Class I Shares* +14.10 +24.91 + 6.86 - ----------------------------------------------------------------------------------------------------- ML Large Cap Growth Fund Class R Shares* +13.89 +24.39 + 4.12 - ----------------------------------------------------------------------------------------------------- ML Large Cap Value Fund Class A Shares* +13.61 +27.45 +100.27 - ----------------------------------------------------------------------------------------------------- ML Large Cap Value Fund Class B Shares* +13.13 +26.46 + 90.80 - ----------------------------------------------------------------------------------------------------- ML Large Cap Value Fund Class C Shares* +13.13 +26.39 + 90.70 - ----------------------------------------------------------------------------------------------------- ML Large Cap Value Fund Class I Shares* +13.71 +27.74 +103.49 - ----------------------------------------------------------------------------------------------------- ML Large Cap Value Fund Class R Shares* +13.40 +27.06 + 98.16 - ----------------------------------------------------------------------------------------------------- Russell 1000(R) Index** + 9.92 +16.71 + 5.45 - ----------------------------------------------------------------------------------------------------- Russell 1000(R) Growth Index*** + 7.06 +15.18 - 31.56 - ----------------------------------------------------------------------------------------------------- Russell 1000(R) Value Index**** +12.87 +18.30 + 53.48 - ----------------------------------------------------------------------------------------------------- * 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 ex-dividend date. Since inception total return is from 12/22/99. ** This unmanaged broad-based Index measures the performance of the 1,000 largest companies in the Russell 3000(R) Index, which represents approximately 92% of the total market capitalization of the Russell 3000 Index. Since inception total return is from 12/22/99. *** This unmanaged broad-based Index is a subset of the Russell 1000 Index consisting of those Russell 1000 securities with a greater-than-average growth orientation. Since inception total return is from 12/22/99. **** This unmanaged broad-based Index is a subset of the Russell 1000 Index consisting of those Russell 1000 securities with lower price/book ratios and lower forecasted growth values. Since inception total return is from 12/22/99. Russell 1000 is a registered trademark of the Frank Russell Company. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 7 Performance Data (continued) Average Annual Total Return -- Merrill Lynch Large Cap Core Fund Return Without Return With Sales Charge Sales Charge** ================================================================================ Class A Shares* ================================================================================ One Year Ended 4/30/06 +25.97% +19.36% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 8.13 + 6.97 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 6.55 + 5.64 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class B Shares++ ================================================================================ One Year Ended 4/30/06 +24.93% +20.93% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 7.27 + 6.97 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 5.71 + 5.71 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class C Shares+ ================================================================================ One Year Ended 4/30/06 +24.94% +23.94% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 7.27 + 7.27 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 5.71 + 5.71 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class I Shares Return ================================================================================ One Year Ended 4/30/06 +26.20% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 8.37 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 6.80 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class R Shares Return ================================================================================ One Year Ended 4/30/06 +25.62% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 7.94 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 6.35 - -------------------------------------------------------------------------------- * Maximum sales charge is 5.25%. ** Assuming maximum sales charge. + Maximum contingent deferred sales charge is 1% and is reduced to 0% after one year. ++ Maximum contingent deferred sales charge is 4% and is reduced to 0% after six years. +++ Assuming payment of applicable contingent deferred sales charge. Average Annual Total Return -- Merrill Lynch Large Cap Growth Fund Return Without Return With Sales Charge Sales Charge** ================================================================================ Class A Shares* ================================================================================ One Year Ended 4/30/06 +24.67% +18.13% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 4.19 + 3.07 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 0.79 - 0.06 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class B Shares++ ================================================================================ One Year Ended 4/30/06 +23.73% +19.73% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 3.37 + 3.02 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 0.02 + 0.02 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class C Shares+ ================================================================================ One Year Ended 4/30/06 +23.61% +22.61% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 3.38 + 3.38 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 0.00 + 0.00 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class I Shares Return ================================================================================ One Year Ended 4/30/06 +24.91% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 4.45 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 1.05 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class R Shares Return ================================================================================ One Year Ended 4/30/06 +24.39% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 + 4.05 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 + 0.64 - -------------------------------------------------------------------------------- * Maximum sales charge is 5.25%. ** Assuming maximum sales charge. + Maximum contingent deferred sales charge is 1% and is reduced to 0% after one year. ++ Maximum contingent deferred sales charge is 4% and is reduced to 0% after six years. +++ Assuming payment of applicable contingent deferred sales charge. 8 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Performance Data (concluded) Average Annual Total Return -- Merrill Lynch Large Cap Value Fund Return Without Return With Sales Charge Sales Charge** ================================================================================ Class A Shares* ================================================================================ One Year Ended 4/30/06 +27.45% +20.76% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 +11.35 +10.15 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 +11.55 +10.60 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class B Shares++ ================================================================================ One Year Ended 4/30/06 +26.46% +22.46% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 +10.50 +10.23 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 +10.70 +10.70 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Return Return Without CDSC With CDSC+++ ================================================================================ Class C Shares+ ================================================================================ One Year Ended 4/30/06 +26.39% +25.39% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 +10.49 +10.49 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 +10.69 +10.69 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class I Shares Return ================================================================================ One Year Ended 4/30/06 +27.74% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 +11.62 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 +11.83 - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- Class R Shares Return ================================================================================ One Year Ended 4/30/06 +27.06% - -------------------------------------------------------------------------------- Five Years Ended 4/30/06 +11.18 - -------------------------------------------------------------------------------- Inception (12/22/99) through 4/30/06 +11.36 - -------------------------------------------------------------------------------- * Maximum sales charge is 5.25%. ** Assuming maximum sales charge. + Maximum contingent deferred sales charge is 1% and is reduced to 0% after one year. ++ Maximum contingent deferred sales charge is 4% and is reduced to 0% after six years. +++ Assuming payment of applicable contingent deferred sales charge. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 9 Disclosure of Expenses Shareholders of these Funds 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 November 1, 2005 and held through April 30, 2006) is intended to assist shareholders both in calculating expenses based on an investment in each 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 each 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 these Funds 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. Merrill Lynch Large Cap Core Fund Expenses Paid Beginning Ending During the Period* Account Value Account Value November 1, 2005 to November 1, 2005 April 30, 2006 April 30, 2006 ==================================================================================================================== Actual ==================================================================================================================== Class A $ 1,000 $1,140.60 $ 5.93 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,135.70 $ 10.00 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,135.80 $ 10.00 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,141.50 $ 4.62 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,139.30 $ 7.24 ==================================================================================================================== Hypothetical (5% annual return before expenses)** ==================================================================================================================== Class A $ 1,000 $1,018.96 $ 5.59 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,015.13 $ 9.44 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,015.13 $ 9.44 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,020.18 $ 4.36 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,017.73 $ 6.83 - -------------------------------------------------------------------------------------------------------------------- * For each class of the Fund, expenses are equal to the annualized expense ratio for the class (1.13% for Class A, 1.91% for Class B, 1.91% for Class C, .88% for Class I and 1.38% for Class R), multiplied by the average account value over the period, multiplied by 179/365 (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 portfolio 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. 10 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Disclosure of Expenses (concluded) Merrill Lynch Large Cap Growth Fund Expenses Paid Beginning Ending During the Period* Account Value Account Value November 1, 2005 to November 1, 2005 April 30, 2006 April 30, 2006 ==================================================================================================================== Actual ==================================================================================================================== Class A $ 1,000 $1,139.90 $ 6.66 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,134.90 $ 10.73 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,135.10 $ 10.68 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,141.00 $ 5.35 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,138.90 $ 7.97 ==================================================================================================================== Hypothetical (5% annual return before expenses)** ==================================================================================================================== Class A $ 1,000 $1,018.29 $ 6.29 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,014.47 $ 10.13 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,014.52 $ 10.08 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,019.52 $ 5.05 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,017.07 $ 7.52 - -------------------------------------------------------------------------------------------------------------------- * For each class of the Fund, expenses are equal to the annualized expense ratio for the class (1.27% for Class A, 2.05% for Class B, 2.04% for Class C, 1.02% for Class I and 1.52% for Class R), multiplied by the average account value over the period, multiplied by 179/365 (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 portfolio 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. Merrill Lynch Large Cap Value Fund Expenses Paid Beginning Ending During the Period* Account Value Account Value November 1, 2005 to November 1, 2005 April 30, 2006 April 30, 2006 ==================================================================================================================== Actual ==================================================================================================================== Class A $ 1,000 $1,136.10 $ 6.23 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,131.30 $ 10.24 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,131.30 $ 10.24 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,137.10 $ 4.93 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,134.00 $ 7.54 ==================================================================================================================== Hypothetical (5% annual return before expenses)** ==================================================================================================================== Class A $ 1,000 $1,018.66 $ 5.89 - -------------------------------------------------------------------------------------------------------------------- Class B $ 1,000 $1,014.89 $ 9.68 - -------------------------------------------------------------------------------------------------------------------- Class C $ 1,000 $1,014.89 $ 9.68 - -------------------------------------------------------------------------------------------------------------------- Class I $ 1,000 $1,019.89 $ 4.66 - -------------------------------------------------------------------------------------------------------------------- Class R $ 1,000 $1,017.44 $ 7.12 - -------------------------------------------------------------------------------------------------------------------- * For each class of the Fund, expenses are equal to the annualized expense ratio for the class (1.19% for Class A, 1.96% for Class B, 1.96% for Class C, .94% for Class I and 1.44% for Class R), multiplied by the average account value over the period, multiplied by 179/365 (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 portfolio 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. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 11 Statements of Assets and Liabilities Merrill Lynch Large Cap Series Funds, Inc. Merrill Lynch Merrill Lynch Merrill Lynch Large Large Large Cap Core Cap Growth Cap Value As of April 30, 2006 Fund Fund Fund =================================================================================================================================== Assets - ----------------------------------------------------------------------------------------------------------------------------------- Investment in Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio (the"Portfolios")* ... $3,287,266,827 $ 686,633,058 $2,377,251,498 Prepaid expenses and other assets .................................... 138,725 87,781 297,716 ---------------------------------------------------- Total assets ......................................................... 3,287,405,552 686,720,839 2,377,549,214 ---------------------------------------------------- =================================================================================================================================== Liabilities - ----------------------------------------------------------------------------------------------------------------------------------- Payables: Distributor ....................................................... 1,340,446 257,176 820,951 Other affiliates .................................................. 970,944 287,287 783,947 Administrator ..................................................... 627,686 131,487 445,942 ---------------------------------------------------- Total liabilities .................................................... 2,939,076 675,950 2,050,840 ---------------------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Net assets ........................................................... $3,284,466,476 $ 686,044,889 $2,375,498,374 ==================================================== =================================================================================================================================== Net Assets Consist of - ----------------------------------------------------------------------------------------------------------------------------------- Accumulated investment loss--net ..................................... $ (5,918,365) $ (2,223,416) $ (1,195,482) Undistributed (accumulated) realized capital gains (losses) allocated from the Portfolios--net ............................................ 16,946,680 (34,030,783) 43,717,230 Unrealized appreciation allocated from the Portfolios--net ........... 595,248,463 93,952,182 387,805,091 ---------------------------------------------------- Total accumulated earnings--net ...................................... 606,276,778 57,697,983 430,326,839 Class A Shares of Common Stock, $.10 par value, 100,000,000 shares authorized .......................................................... 6,150,454 1,549,311 3,591,787 Class B Shares of Common Stock, $.10 par value, 200,000,000 shares authorized .......................................................... 3,589,366 1,077,304 1,594,524 Class C Shares of Common Stock, $.10 par value, 100,000,000 shares authorized .......................................................... 7,610,907 1,651,223 3,460,114 Class I Shares of Common Stock, $.10 par value, 100,000,000 shares authorized .......................................................... 5,959,148 1,930,729 4,052,014 Class R Shares of Common Stock, $.10 par value, 200,000,000 shares authorized .......................................................... 568,817 431,058 466,107 Paid-in capital in excess of par ..................................... 2,654,311,006 621,707,281 1,932,006,989 ---------------------------------------------------- Net Assets ........................................................... $3,284,466,476 $ 686,044,889 $2,375,498,374 ==================================================== 12 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Assets and Liabilities (concluded) Merrill Lynch Large Cap Series Funds, Inc. Merrill Lynch Merrill Lynch Merrill Lynch Large Large Large Cap Core Cap Growth Cap Value As of April 30, 2006 Fund Fund Fund =================================================================================================================================== Net Asset Value - ----------------------------------------------------------------------------------------------------------------------------------- Class A: Net assets ........................................................ $ 861,443,001 $ 162,774,068 $ 656,786,242 ==================================================== Shares outstanding ................................................ 61,504,537 15,493,107 35,917,872 ==================================================== Net asset value ................................................... $ 14.01 $ 10.51 $ 18.29 ==================================================== Class B: Net assets ........................................................ $ 481,054,129 $ 107,815,531 $ 279,139,841 ==================================================== Shares outstanding ................................................ 35,893,661 10,773,035 15,945,239 ==================================================== Net asset value ................................................... $ 13.40 $ 10.01 $ 17.51 ==================================================== Class C: Net assets ........................................................ $1,017,557,337 $ 165,095,326 $ 604,174,146 ==================================================== Shares outstanding ................................................ 76,109,065 16,512,226 34,601,143 ==================================================== Net asset value ................................................... $ 13.37 $ 10.00 $ 17.46 ==================================================== Class I: Net assets ........................................................ $ 846,906,289 $ 206,193,711 $ 752,339,069 ==================================================== Shares outstanding ................................................ 59,591,479 19,307,289 40,520,140 ==================================================== Net asset value ................................................... $ 14.21 $ 10.68 $ 18.57 ==================================================== Class R: Net assets ........................................................ $ 77,505,720 $ 44,166,253 $ 83,059,076 ==================================================== Shares outstanding ................................................ 5,688,170 4,310,575 4,661,074 ==================================================== Net asset value ................................................... $ 13.63 $ 10.25 $ 17.82 ==================================================== * Identified cost ................................................... $2,692,018,364 $ 592,680,876 $1,989,446,407 ==================================================== See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 13 Statements of Operations Merrill Lynch Large Cap Series Funds, Inc. Merrill Lynch Merrill Lynch Merrill Lynch Large Large Large Cap Core Cap Growth Cap Value For the Six Months Ended April 30, 2006 Fund Fund Fund =================================================================================================================================== Investment Income - ----------------------------------------------------------------------------------------------------------------------------------- Net investment income allocated from the Portfolios: Dividends ......................................................... $ 14,243,891 $ 2,177,170 $ 12,048,489 Interest from affiliates .......................................... 155,956 54,322 215,574 Securities lending--net ........................................... 148,474 27,621 92,392 Expenses .......................................................... (7,074,867) (1,629,216) (5,063,613) ---------------------------------------------------- Total income ......................................................... 7,473,454 629,897 7,292,842 ---------------------------------------------------- =================================================================================================================================== Expenses - ----------------------------------------------------------------------------------------------------------------------------------- Account maintenance and distribution fees--Class C ................... 4,342,151 726,787 2,479,343 Administration fees .................................................. 3,559,970 724,987 2,365,879 Account maintenance and distribution fees--Class B ................... 2,312,300 509,455 1,348,834 Account maintenance fees--Class A .................................... 921,825 169,809 615,409 Transfer agent fees--Class C ......................................... 618,941 145,553 374,663 Transfer agent fees--Class I ......................................... 433,617 144,291 387,700 Transfer agent fees--Class A ......................................... 446,326 121,506 332,798 Transfer agent fees--Class B ......................................... 331,463 104,013 205,737 Account maintenance and distribution fees--Class R ................... 155,448 87,605 154,143 Registration fees .................................................... 100,054 53,337 112,204 Printing and shareholder reports ..................................... 98,926 18,280 46,717 Transfer agent fees--Class R ......................................... 37,448 31,166 41,660 Professional fees .................................................... 23,765 9,182 16,101 Other ................................................................ 9,585 7,342 7,136 ---------------------------------------------------- Total expenses ....................................................... 13,391,819 2,853,313 8,488,324 ---------------------------------------------------- Investment loss--net ................................................. (5,918,365) (2,223,416) (1,195,482) ---------------------------------------------------- =================================================================================================================================== Realized & Unrealized Gain Allocated from the Portfolios--Net - ----------------------------------------------------------------------------------------------------------------------------------- Realized gain on investments--net .................................... 98,578,418 24,131,080 48,571,767 Change in unrealized appreciation on investments--net ................ 263,048,131 46,824,193 183,693,963 ---------------------------------------------------- Total realized and unrealized gain--net .............................. 361,626,549 70,955,273 232,265,730 ---------------------------------------------------- Net Increase in Net Assets Resulting from Operations ................. $ 355,708,184 $ 68,731,857 $ 231,070,248 ==================================================== See Notes to Financial Statements. 14 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Changes in Net Assets Merrill Lynch Large Cap Core Fund For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment loss--net ........................................................... $ (5,918,365) $ (5,488,189) Realized gain--net ............................................................. 98,578,418 169,480,673 Change in unrealized appreciation--net ......................................... 263,048,131 148,113,813 -------------------------------------- Net increase in net assets resulting from operations ........................... 355,708,184 312,106,297 -------------------------------------- =================================================================================================================================== Distributions to Shareholders - ----------------------------------------------------------------------------------------------------------------------------------- Realized gain--net: Class A ..................................................................... (39,150,984) (3,420,110) Class B ..................................................................... (23,738,142) (3,547,724) Class C ..................................................................... (43,104,852) (3,932,578) Class I ..................................................................... (37,101,052) (3,522,593) Class R ..................................................................... (3,102,298) (154,059) -------------------------------------- Net decrease in net assets resulting from distributions to shareholders ........ (146,197,328) (14,577,064) -------------------------------------- =================================================================================================================================== Capital Share Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Net increase in net assets derived from capital share transactions ............. 614,211,158 496,660,002 -------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets ................................................... 823,722,014 794,189,235 Beginning of period ............................................................ 2,460,744,462 1,666,555,227 -------------------------------------- End of period* ................................................................. $ 3,284,466,476 $ 2,460,744,462 ====================================== * Accumulated investment loss--net ............................................... $ (5,918,365) -- ====================================== See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 15 Statements of Changes In Net Assets Merrill Lynch Large Cap Growth Fund For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment loss--net ........................................................... $ (2,223,416) $ (3,266,027) Realized gain--net ............................................................. 24,131,080 27,951,501 Change in unrealized appreciation--net ......................................... 46,824,193 17,275,515 -------------------------------------- Net increase in net assets resulting from operations ........................... 68,731,857 41,960,989 -------------------------------------- =================================================================================================================================== Capital Share Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Net increase in net assets derived from capital share transactions ............. 128,449,639 102,839,683 -------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets ................................................... 197,181,496 144,800,672 Beginning of period ............................................................ 488,863,393 344,062,721 -------------------------------------- End of period* ................................................................. $ 686,044,889 $ 488,863,393 ====================================== * Accumulated investment loss--net ............................................... $ (2,223,416) -- ====================================== See Notes to Financial Statements. 16 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Changes in Net Assets Merrill Lynch Large Cap Value Fund For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment loss--net ........................................................... $ (1,195,482) $ (2,354,785) Realized gain--net ............................................................. 48,571,767 77,262,988 Change in unrealized appreciation--net ......................................... 183,693,963 112,124,763 -------------------------------------- Net increase in net assets resulting from operations ........................... 231,070,248 187,032,966 -------------------------------------- =================================================================================================================================== Distributions to Shareholders - ----------------------------------------------------------------------------------------------------------------------------------- Realized gain--net: Class A ..................................................................... (19,186,811) (8,283,910) Class B ..................................................................... (10,908,503) (10,290,416) Class C ..................................................................... (19,192,363) (10,721,593) Class I ..................................................................... (23,059,853) (8,685,584) Class R ..................................................................... (2,388,871) (707,934) -------------------------------------- Net decrease in net assets resulting from distributions to shareholders ........ (74,736,401) (38,689,437) -------------------------------------- =================================================================================================================================== Capital Share Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Net increase in net assets derived from capital share transactions ............. 684,599,845 576,505,050 -------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets ................................................... 840,933,692 724,848,579 Beginning of period ............................................................ 1,534,564,682 809,716,103 -------------------------------------- End of period* ................................................................. $ 2,375,498,374 $ 1,534,564,682 ====================================== * Accumulated investment loss--net ............................................... $ (1,195,482) -- ====================================== See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 17 Financial Highlights Class A Merrill Lynch Large Cap Core Fund ------------------------------------------------------------------------ For the Six Months Ended For the Year Ended October 31, The following per share data and ratios have been derived April 30, ------------------------------------------------------ from information provided in the financial statements. 2006 2005 2004 2003 2002 ==================================================================================================================================== Per Share Operating Performance - ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, beginning of period ................ $ 13.01 $ 11.15 $ 10.23 $ 8.25 $ 9.06 ----------------------------------------------------------------------- Investment income (loss)--net*** .................... (.01) .01 (.01) (.02) .01 Realized and unrealized gain (loss)--net ............ 1.79 1.94 .93 2.00 (.82) ----------------------------------------------------------------------- Total from investment operations .................... 1.78 1.95 .92 1.98 (.81) ----------------------------------------------------------------------- Less distributions from realized gain--net .......... (.78) (.09) -- -- -- ----------------------------------------------------------------------- Net asset value, end of period ...................... $ 14.01 $ 13.01 $ 11.15 $ 10.23 $ 8.25 ======================================================================= ==================================================================================================================================== Total Investment Return++ - ------------------------------------------------------------------------------------------------------------------------------------ Based on net asset value per share .................. 14.06%+ 17.61% 8.99% 24.00% (8.94%) ======================================================================= ==================================================================================================================================== Ratios to Average Net Assets** - ------------------------------------------------------------------------------------------------------------------------------------ Expenses, net of reimbursement ...................... 1.13%* 1.16% 1.18% 1.23% 1.28% ======================================================================= Expenses ............................................ 1.13%* 1.16% 1.18% 1.23% 1.28% ======================================================================= Investment income (loss)--net ....................... (.11%)* .05% (.09%) (.21%) .10% ======================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) ............ $ 861,443 $ 629,682 $ 392,896 $ 293,144 $ 136,552 ======================================================================= Portfolio turnover of the Portfolios ................ 38.13% 93.95% 135.48% 138.73% 150.18% ======================================================================= * Annualized. ** Includes the Fund's share of the Portfolio's allocated expenses and/or investment income--net. *** Based on average shares outstanding. + Aggregate total investment return. ++ Total investment returns exclude the effects of sales charges. See Notes to Financial Statements. 18 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Merrill Lynch Large Cap Growth Fund Merrill Lynch Large Cap Value Fund - -------------------------------------------------------------- ------------------------------------------------------------ For the Six For the Six Months Ended For the Year Ended October 31, Month Ended For the Year Ended October 31, April 30, ------------------------------------------------ April 30, ----------------------------------------------- 2006 2005 2004 2003 2002 2006 2005 2004 2003 2002 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 9.22 $ 8.26 $ 7.89 $ 6.39 $ 7.47 $ 16.86 $ 14.53 $ 12.77 $ 10.14 $ 10.62 - ------------------------------------------------------------------------------------------------------------------------------------ (.02) (.04) (.06) (.05) (.06) .01 .02 .03 .03 .04 1.31 1.00 .43 1.55 (1.02) 2.23 2.97 1.73 2.60 (.52) - ------------------------------------------------------------------------------------------------------------------------------------ 1.29 .96 .37 1.50 (1.08) 2.24 2.99 1.76 2.63 (.48) - ------------------------------------------------------------------------------------------------------------------------------------ -- -- -- -- -- (.81) (.66) -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ $ 10.51 $ 9.22 $ 8.26 $ 7.89 $ 6.39 $ 18.29 $ 16.86 $ 14.53 $ 12.77 $ 10.14 ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 13.99%+ 11.62% 4.69% 23.47% (14.46%) 13.61%+ 21.20% 13.78% 25.94% (4.52%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 1.27%* 1.33% 1.38% 1.46% 1.54% 1.19%* 1.23% 1.26% 1.28% 1.28% ==================================================================================================================================== 1.27%* 1.33% 1.38% 1.46% 1.56% 1.19%* 1.23% 1.26% 1.28% 1.28% ==================================================================================================================================== (.49%)* (.46%) (.69%) (.81%) (.88%) .10%* .10% .21% .24% .49% ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 162,774 $ 112,887 $ 64,539 $ 27,410 $ 15,874 $ 656,786 $ 371,216 $ 161,867 $ 90,358 $ 46,020 ==================================================================================================================================== 51.87% 131.79% 164.94% 178.11% 177.46% 27.97% 94.95% 127.59% 157.04% 136.92% ==================================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 19 Financial Highlights (continued) Class B Merrill Lynch Large Cap Core Fund ------------------------------------------------------------------------ For the Six Months Ended For the Year Ended October 31, The following per share data and ratios have been derived April 30, ------------------------------------------------------ from information provided in the financial statements. 2006 2005 2004 2003 2002 ==================================================================================================================================== Per Share Operating Performance - ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, beginning of period ................ $ 12.43 $ 10.74 $ 9.93 $ 8.07 $ 8.93 ----------------------------------------------------------------------- Investment loss--net*** ............................. (.06) (.08) (.09) (.08) (.06) Realized and unrealized gain (loss)--net ............ 1.70 1.86 .90 1.94 (.80) ----------------------------------------------------------------------- Total from investment operations .................... 1.64 1.78 .81 1.86 (.86) ----------------------------------------------------------------------- Less distributions from realized gain--net .......... (.67) (.09) -- -- -- ----------------------------------------------------------------------- Net asset value, end of period ...................... $ 13.40 $ 12.43 $ 10.74 $ 9.93 $ 8.07 ======================================================================= ==================================================================================================================================== Total Investment Return++ - ------------------------------------------------------------------------------------------------------------------------------------ Based on net asset value per share .................. 13.57%+ 16.69% 8.16% 23.05% (9.63%) ======================================================================= ==================================================================================================================================== Ratios to Average Net Assets** - ------------------------------------------------------------------------------------------------------------------------------------ Expenses, net of reimbursement ...................... 1.91%* 1.93% 1.95% 2.00% 2.07% ======================================================================= Expenses ............................................ 1.91%* 1.93% 1.95% 2.00% 2.07% ======================================================================= Investment loss--net ................................ (.87%)* (.66%) (.86%) (.96%) (.64%) ======================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) ............ $ 481,054 $ 446,242 $ 412,162 $ 389,598 $ 329,121 ======================================================================= Portfolio turnover of the Portfolios ................ 38.13% 93.95% 135.48% 138.73% 150.18% ======================================================================= * Annualized. ** Includes the Fund's share of the Portfolio's allocated expenses and/or investment income--net. *** Based on average shares outstanding. + Aggregate total investment return. ++ Total investment returns exclude the effects of sales charges. See Notes to Financial Statements. 20 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Merrill Lynch Large Cap Growth Fund Merrill Lynch Large Cap Value Fund - --------------------------------------------------------------- ---------------------------------------------------------------- For the Six For the Six Months Ended For the Year Ended October 31, Month Ended For the Year Ended October 31, April 30, ------------------------------------------------- April 30, -------------------------------------------------- 2006 2005 2004 2003 2002 2006 2005 2004 2003 2002 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 8.82 $ 7.96 $ 7.66 $ 6.25 $ 7.37 $ 16.12 $ 14.02 $ 12.41 $ 9.93 $ 10.48 - ------------------------------------------------------------------------------------------------------------------------------------ (.06) (.10) (.12) (.10) (.12) (.05) (.09) (.07) (.05) (.03) 1.25 .96 .42 1.51 (1.00) 2.12 2.85 1.68 2.53 (.52) - ------------------------------------------------------------------------------------------------------------------------------------ 1.19 .86 .30 1.41 (1.12) 2.07 2.76 1.61 2.48 (.55) - ------------------------------------------------------------------------------------------------------------------------------------ -- -- -- -- -- (.68) (.66) -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ $ 10.01 $ 8.82 $ 7.96 $ 7.66 $ 6.25 $ 17.51 $ 16.12 $ 14.02 $ 12.41 $ 9.93 ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 13.49%+ 10.80% 3.92% 22.56% (15.20%) 13.13%+ 20.29% 12.97% 24.97% (5.25%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 2.05%* 2.11% 2.16% 2.27% 2.32% 1.96%* 2.00% 2.02% 2.05% 2.05% ==================================================================================================================================== 2.05%* 2.11% 2.16% 2.27% 2.34% 1.96%* 2.00% 2.02% 2.05% 2.05% ==================================================================================================================================== (1.26%)* (1.15%) (1.48%) (1.61%) (1.66%) (.62%)* (.60%) (.53%) (.50%) (.28%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 107,816 $ 95,593 $ 93,382 $ 100,683 $ 83,726 $ 279,140 $ 261,345 $ 222,055 $ 202,190 $ 174,623 ==================================================================================================================================== 51.87% 131.79% 164.94% 178.11% 177.46% 27.97% 94.95% 127.59% 157.04% 136.92% ==================================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 21 Financial Highlights (continued) Class C Merrill Lynch Large Cap Core Fund ------------------------------------------------------------------------ For the Six Months Ended For the Year Ended October 31, The following per share data and ratios have been derived April 30, ------------------------------------------------------ from information provided in the financial statements. 2006 2005 2004 2003 2002 ==================================================================================================================================== Per Share Operating Performance - ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, beginning of period................. $ 12.43 $ 10.73 $ 9.93 $ 8.07 $ 8.93 ----------------------------------------------------------------------- Investment loss--net*** ............................. (.06) (.09) (.09) (.08) (.06) Realized and unrealized gain (loss)--net ............ 1.70 1.88 .89 1.94 (.80) ----------------------------------------------------------------------- Total from investment operations .................... 1.64 1.79 .80 1.86 (.86) ----------------------------------------------------------------------- Less distributions from realized gain--net .......... (.70) (.09) -- -- -- ----------------------------------------------------------------------- Net asset value, end of period ...................... $ 13.37 $ 12.43 $ 10.73 $ 9.93 $ 8.07 ======================================================================= ==================================================================================================================================== Total Investment Return++ - ------------------------------------------------------------------------------------------------------------------------------------ Based on net asset value per share .................. 13.58%+ 16.80% 8.06% 23.05% (9.63%) ======================================================================= ==================================================================================================================================== Ratios to Average Net Assets** - ------------------------------------------------------------------------------------------------------------------------------------ Expenses, net of reimbursement ...................... 1.91%* 1.94% 1.96% 2.01% 2.07% ======================================================================= Expenses ............................................ 1.91%* 1.94% 1.96% 2.01% 2.07% ======================================================================= Investment loss--net ................................ (.89%)* (.73%) (.86%) (.97%) (.66%) ======================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) ............ $1,017,557 $ 737,063 $ 430,689 $ 250,491 $ 178,459 ======================================================================= Portfolio turnover of the Portfolios ................ 38.13% 93.95% 135.48% 138.73% 150.18% ======================================================================= * Annualized. ** Includes the Fund's share of the Portfolio's allocated expenses and/or investment income--net. *** Based on average shares outstanding. + Aggregate total investment return. ++ Total investment returns exclude the effects of sales charges. See Notes to Financial Statements. 22 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Merrill Lynch Large Cap Growth Fund Merrill Lynch Large Cap Value Fund - -------------------------------------------------------------- ---------------------------------------------------------------- For the Six For the Six Months Ended For the Year Ended October 31, Month Ended For the Year Ended October 31, April 30, ------------------------------------------------ April 30, -------------------------------------------------- 2006 2005 2004 2003 2002 2006 2005 2004 2003 2002 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 8.81 $ 7.95 $ 7.65 $ 6.25 $ 7.36 $ 16.11 $ 14.01 $ 12.41 $ 9.93 $ 10.48 - ------------------------------------------------------------------------------------------------------------------------------------ (.06) (.10) (.12) (.10) (.12) (.05) (.10) (.07) (.05) (.03) 1.25 .96 .42 1.50 (.99) 2.12 2.86 1.67 2.53 (.52) - ------------------------------------------------------------------------------------------------------------------------------------ 1.19 .86 .30 1.40 (1.11) 2.07 2.76 1.60 2.48 (.55) - ------------------------------------------------------------------------------------------------------------------------------------ -- -- -- -- -- (.72) (.66) -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ $ 10.00 $ 8.81 $ 7.95 $ 7.65 $ 6.25 $ 17.46 $ 16.11 $ 14.01 $ 12.41 $ 9.93 ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 13.51%+ 10.82% 3.92% 22.40% (15.08%) 13.13%+ 20.31% 12.89% 24.97% (5.25%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 2.04%* 2.11% 2.16% 2.27% 2.33% 1.96%* 2.00% 2.03% 2.06% 2.05% ==================================================================================================================================== 2.04%* 2.11% 2.16% 2.27% 2.35% 1.96%* 2.00% 2.03% 2.06% 2.05% ==================================================================================================================================== (1.26%)* (1.19%) (1.48%) (1.62%) (1.67%) (.65%)* (.65%) (.54%) (.51%) (.28%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 165,095 $ 125,150 $ 94,969 $ 68,337 $ 52,872 $ 604,174 $ 409,937 $ 219,806 $ 129,456 $ 95,895 ==================================================================================================================================== 51.87% 131.79% 164.94% 178.11% 177.46% 27.97% 94.95% 127.59% 157.04% 136.92% ==================================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 23 Financial Highlights (continued) Class I Merrill Lynch Large Cap Core Fund ------------------------------------------------------------------------ For the Six Months Ended For the Year Ended October 31, The following per share data and ratios have been derived April 30, ------------------------------------------------------ from information provided in the financial statements. 2006 2005 2004 2003 2002 ==================================================================================================================================== Per Share Operating Performance - ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, beginning of period ................ $ 13.20 $ 11.28 $ 10.33 $ 8.31 $ 9.10 ----------------------------------------------------------------------- Investment income (loss)--net*** .................... .01 .04 .02 .01 .03 Realized and unrealized gain (loss)--net ............ 1.80 1.97 .93 2.01 (.82) ----------------------------------------------------------------------- Total from investment operations .................... 1.81 2.01 .95 2.02 (.79) ----------------------------------------------------------------------- Less distributions from realized gain--net .......... (.80) (.09) -- -- -- ----------------------------------------------------------------------- Net asset value, end of period ...................... $ 14.21 $ 13.20 $ 11.28 $ 10.33 $ 8.31 ======================================================================= ==================================================================================================================================== Total Investment Return++ - ------------------------------------------------------------------------------------------------------------------------------------ Based on net asset value per share .................. 14.15%+ 17.94% 9.20% 24.31% (8.68%) ======================================================================= ==================================================================================================================================== Ratios to Average Net Assets** - ------------------------------------------------------------------------------------------------------------------------------------ Expenses, net of reimbursement ...................... .88%* .91% .93% .98% 1.04% ======================================================================= Expenses ............................................ .88%* .91% .93% .98% 1.04% ======================================================================= Investment income (loss)--net ....................... .14%* .31% .17% .06% .33% ======================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) ............ $ 846,906 $ 601,378 $ 415,647 $ 307,277 $ 214,953 ======================================================================= Portfolio turnover of the Portfolios ................ 38.13% 93.95% 135.48% 138.73% 150.18% ======================================================================= * Annualized. ** Includes the Fund's share of the Portfolio's allocated expenses and/or investment income--net. *** Based on average shares outstanding. + Aggregate total investment return. ++ 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 charge. See Notes to Financial Statements. 24 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Merrill Lynch Large Cap Growth Fund Merrill Lynch Large Cap Value Fund - -------------------------------------------------------------- ------------------------------------------------------------ For the Six For the Six Months Ended For the Year Ended October 31, Month Ended For the Year Ended October 31, April 30, ------------------------------------------------ April 30, ----------------------------------------------- 2006 2005 2004 2003 2002 2006 2005 2004 2003 2002 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 9.36 $ 8.36 $ 7.97 $ 6.44 $ 7.50 $ 17.12 $ 14.71 $ 12.89 $ 10.21 $ 10.67 - ------------------------------------------------------------------------------------------------------------------------------------ (.01) (.02) (.04) (.04) (.05) .03 .06 .07 .06 .05 1.33 1.02 .43 1.57 (1.01) 2.26 3.01 1.75 2.62 (.51) - ------------------------------------------------------------------------------------------------------------------------------------ 1.32 1.00 .39 1.53 (1.06) 2.29 3.07 1.82 2.68 (.46) - ------------------------------------------------------------------------------------------------------------------------------------ -- -- -- -- -- (.84) (.66) -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ $ 10.68 $ 9.36 $ 8.36 $ 7.97 $ 6.44 $ 18.57 $ 17.12 $ 14.71 $ 12.89 $ 10.21 ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 14.10%+ 11.96% 4.89% 23.76% (14.13%) 13.71%+ 21.49% 14.12% 26.25% (4.31%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 1.02%* 1.08% 1.13% 1.22% 1.29% .94%* .98% 1.01% 1.03% 1.03% ==================================================================================================================================== 1.02%* 1.08% 1.13% 1.22% 1.31% .94%* .98% 1.01% 1.03% 1.03% ==================================================================================================================================== (.24%)* (.20%) (.45%) (.57%) (.63%) .36%* .35% .49% .51% .76% ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 206,194 $ 128,667 $ 79,869 $ 53,163 $ 31,989 $ 752,339 $ 446,172 $ 194,625 $ 92,736 $ 66,754 ==================================================================================================================================== 51.87% 131.79% 164.94% 178.11% 177.46% 27.97% 94.95% 127.59% 157.04% 136.92% ==================================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 25 Financial Highlights (concluded) Class R Merrill Lynch Large Cap Core Fund ----------------------------------------------------------------- For the For the Period Six Months For the Year Ended January 3, Ended October 31, 2003@ to The following per share data and ratios have been derived April 30, --------------------------- October 31, from information provided in the financial statements. 2006 2005 2004 2003 ==================================================================================================================================== Per Share Operating Performance - ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, beginning of period ...................... $ 12.68 $ 10.89 $ 10.02 $ 8.12 ----------------------------------------------------------------- Investment income (loss)--net*** .......................... (.02) (.03) (.03) (.05) Realized and unrealized gain--net ......................... 1.73 1.91 .90 1.95 ----------------------------------------------------------------- Total from investment operations .......................... 1.71 1.88 .87 1.90 ----------------------------------------------------------------- Less distributions from realized gain--net ................ (.76) (.09) -- -- ----------------------------------------------------------------- Net asset value, end of period ............................ $ 13.63 $ 12.68 $ 10.89 $ 10.02 ================================================================= ==================================================================================================================================== Total Investment Return - ------------------------------------------------------------------------------------------------------------------------------------ Based on net asset value per share ........................ 13.93%+ 17.39% 8.68% 23.40%+ ================================================================= ==================================================================================================================================== Ratios to Average Net Assets** - ------------------------------------------------------------------------------------------------------------------------------------ Expenses, net of reimbursement ............................ 1.38%* 1.42% 1.43% 1.48%* ================================================================= Expenses .................................................. 1.38%* 1.42% 1.43% 1.48%* ================================================================= Investment income (loss)--net ............................. (.37%)* (.28%) (.32%) (.44%)* ================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) .................. $ 77,506 $ 46,379 $ 15,160 $ 119 ================================================================= Portfolio turnover of the Portfolios ...................... 38.13% 93.95% 135.48% 138.73% ================================================================= * Annualized. ** Includes the Fund's share of the Portfolio's allocated expenses and/or investment income--net. *** Based on average shares outstanding. + Aggregate total investment return. @ Commencement of operations. @@ Amount is less than ($.01) per share. See Notes to Financial Statements. 26 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Merrill Lynch Large Cap Growth Fund Merrill Lynch Large Cap Value Fund - ---------------------------------------------------------- ---------------------------------------------------------- For the For the Period For the For the Period Six Months For the Year Ended January 3, Six Months For the Year Ended January 3, Ended October 31, 2003@ to Ended October 31, 2003@ to April 30, ------------------------ October 31, April 30, ------------------------ October 31, 2006 2005 2004 2003 2006 2005 2004 2003 ============================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------ $ 9.00 $ 8.08 $ 7.74 $ 6.16 $ 16.46 $ 14.23 $ 12.54 $ 10.12 - ------------------------------------------------------------------------------------------------------------------------------ (.04) (.07) (.06) (.05) (.01) (.03) --@@ .01 1.29 .99 .40 1.63 2.16 2.92 1.69 2.41 - ------------------------------------------------------------------------------------------------------------------------------ 1.25 .92 .34 1.58 2.15 2.89 1.69 2.42 - ------------------------------------------------------------------------------------------------------------------------------ -- -- -- -- (.79) (.66) -- -- - ------------------------------------------------------------------------------------------------------------------------------ $ 10.25 $ 9.00 $ 8.08 $ 7.74 $ 17.82 $ 16.46 $ 14.23 $ 12.54 ============================================================================================================================== ============================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------ 13.89%+ 11.39% 4.39% 25.65%+ 13.40%+ 20.93% 13.48% 23.91%+ ============================================================================================================================== ============================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------ 1.52%* 1.58% 1.61% 1.72%* 1.44%* 1.48% 1.53% 1.53%* ============================================================================================================================== 1.52%* 1.58% 1.61% 1.72%* 1.44%* 1.48% 1.53% 1.53%* ============================================================================================================================== (.74%)* (.75%) (.95%) (.94%)* (.15%)* (.19%) (.03%) .01%* ============================================================================================================================== ============================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------ $ 44,166 $ 26,566 $ 11,304 $ 290 $ 83,059 $ 45,894 $ 11,362 $ 12 ============================================================================================================================== 51.87% 131.79% 164.94% 178.11% 27.97% 94.95% 127.59% 157.04% ============================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 27 Notes to Financial Statements Merrill Lynch Large Cap Series Funds, Inc. 1. Significant Accounting Policies: Merrill Lynch Large Cap Core Fund, Merrill Lynch Large Cap Growth Fund and Merrill Lynch Large Cap Value Fund (the "Funds" or individually as the "Fund") constituting Merrill Lynch Large Cap Series Funds, Inc. are registered under the Investment Company Act of 1940, as amended, as diversified, open-end investment companies. The Funds seek to achieve their investment objective by investing all of their assets in the Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio (the "Portfolios" or individually as the "Portfolio"), respectively, constituting Master Large Cap Series Trust, which have the same investment objective and strategies as the corresponding Funds. The value of the Funds' investment in the Portfolios reflect the Funds' proportionate interest in the net assets of the Portfolios. The performance of the Funds is directly affected by the performance of the Portfolios. The financial statements of the Portfolios, including the Schedules of Investments, are included elsewhere in this report and should be read in conjunction with the Funds' financial statements. The Funds' financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to present a fair statement of the results for the interim period. All such adjustments are of a normal, recurring nature. On April 30, 2006, the percentage of Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio owned by Merrill Lynch Large Cap Core Fund, Merrill Lynch Large Cap Growth Fund and Merrill Lynch Large Cap Value Fund, was 94.1%, 100% and 99.9%, respectively. The Funds offer multiple classes of shares. Effective December 28, 2005, Class I Shares are no longer subject to any front-end sales charge. 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 Class A distribution plan). 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 Funds. (a) Valuation of investments -- Each Fund records its investment in the Portfolio at fair value. Valuation of securities held by the Portfolio is discussed in Note 1(a) of the Portfolios' Notes to Financial Statements, which are included elsewhere in this report. (b) Investment income and expenses -- Each Fund records daily its proportionate share of the Portfolio's income, expenses and realized and unrealized gains and losses. In addition, each Fund accrues its own expenses. (c) Income taxes -- It is each Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to shareholders. Therefore, no federal income tax provision is required. Under the applicable foreign tax law, withholding taxes may be imposed on interest, dividends and capital gains at various rates. (d) Prepaid registration fees -- Prepaid registration fees are charged to expense as the related shares are issued. (e) Dividends and distributions -- Dividends and distributions paid by each Fund are recorded on the ex-dividend dates. (f) Investment transactions -- Investment transactions in each Portfolio are accounted for on a trade date basis. 2. Transactions with Affiliates: Each Fund has entered into an Administration 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. Each Fund pays a monthly fee at an annual rate of .25% of the Fund's average daily net assets for the performance of administrative services (other than investment advice and related portfolio activities) necessary for the operation of the Fund. Each Fund has also entered into a Distribution Agreement and Distribution Plans with FAM Distributors, Inc. ("FAMD" or the "Distributor"), which is a wholly-owned subsidiary of Merrill Lynch Group, Inc. 28 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Notes to Financial Statements (continued) Merrill Lynch Large Cap Series Funds, Inc. Pursuant to the Distribution Plans adopted by the Funds in accordance with Rule 12b-1 under the Investment Company Act of 1940, the Funds pay 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 Distribution Maintenance Fee Fee - -------------------------------------------------------------------------------- Class A ................................ .25% -- Class B ................................ .25% .75% Class C ................................ .25% .75% 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 Funds. 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 six months ended April 30, 2006, FAMD earned underwriting discounts and MLPF&S earned dealer concessions on sales of the Funds' Class A and Class I Shares as follows: - -------------------------------------------------------------------------------- FAMD MLPF&S - -------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund Class A .................................... $ 81,940 $1,060,555 Class I .................................... $ 3,549 $ 56,677 - -------------------------------------------------------------------------------- Merrill Lynch Large Cap Growth Fund Class A .................................... $ 11,081 $ 147,870 Class I .................................... $ 2 $ 20 - -------------------------------------------------------------------------------- Merrill Lynch Large Cap Value Fund Class A .................................... $ 36,387 $ 490,552 Class I .................................... $ 77 $ 1,338 - -------------------------------------------------------------------------------- For the six months ended April 30, 2006, MLPF&S received contingent deferred sales charges relating to transactions in Class B and Class C Shares as follows: - -------------------------------------------------------------------------------- Class B Class C - -------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund .............. $170,698 $ 66,223 Merrill Lynch Large Cap Growth Fund ............ $ 26,445 $ 4,666 Merrill Lynch Large Cap Value Fund ............. $ 97,313 $ 23,375 - -------------------------------------------------------------------------------- Furthermore, MLPF&S received contingent deferred sales charges relating to transactions subject to front-end sales charge waivers in Class A Shares as follows: - -------------------------------------------------------------------------------- Class A - -------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund ........................... $47,121 Merrill Lynch Large Cap Growth Fund ......................... -- Merrill Lynch Large Cap Value Fund .......................... $ 543 - -------------------------------------------------------------------------------- Financial Data Services, Inc. ("FDS"), an indirect, wholly-owned subsidiary of ML & Co., is the Funds' transfer agent. Certain officers and/or directors of the Funds are officers and/or directors of FAM, FAMD, PSI, FDS, and/or ML & Co. 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 is expected to close in the third quarter of 2006. 3. Capital Share Transactions: Merrill Lynch Large Cap Core Fund Net increase in net assets derived from capital share transactions was $614,211,158 and $496,660,002 for the six months ended April 30, 2006 and the year ended October 31, 2005, respectively. Transactions in capital shares for each class were as follows: - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund - ------------------------------------------------------------------------------- Class A Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 15,983,799 $ 217,997,180 Automatic conversion of shares ......... 1,223,887 16,553,794 Shares issued resulting from reinvestment of distributions ........ 2,779,136 36,378,888 --------------------------------- Total issued ........................... 19,986,822 270,929,862 Shares redeemed ........................ (6,864,464) (93,514,770) --------------------------------- Net increase ........................... 13,122,358 $ 177,415,092 ================================= - ------------------------------------------------------------------------------- Class A Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 21,630,751 $ 269,694,087 Automatic conversion of shares ......... 1,329,966 16,528,220 Shares issued resulting from reinvestment of distributions ........ 276,770 3,252,048 --------------------------------- Total issued ........................... 23,237,487 289,474,355 Shares redeemed ........................ (10,104,529) (126,772,449) --------------------------------- Net increase ........................... 13,132,958 $ 162,701,906 ================================= MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 29 Notes to Financial Statements (continued) Merrill Lynch Large Cap Series Funds, Inc. - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund (continued) - ------------------------------------------------------------------------------- Class B Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 3,596,193 $ 46,922,201 Shares issued resulting from reinvestment of distributions ........ 1,653,076 20,762,639 --------------------------------- Total issued ........................... 5,249,269 67,684,840 --------------------------------- Automatic conversion of shares ......... (1,279,008) (16,553,794) Shares redeemed ........................ (3,966,565) (51,748,762) --------------------------------- Total redeemed ......................... (5,245,573) (68,302,556) --------------------------------- Net increase (decrease) ................ 3,696 $ (617,716) ================================= - ------------------------------------------------------------------------------- Class B Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 7,261,231 $ 86,386,499 Shares issued resulting from reinvestment of distributions ........ 272,886 3,083,617 --------------------------------- Total issued ........................... 7,534,117 89,470,116 --------------------------------- Automatic conversion of shares ......... (1,386,617) (16,528,220) Shares redeemed ........................ (8,651,655) (102,765,876) --------------------------------- Total redeemed ......................... (10,038,272) (119,294,096) --------------------------------- Net decrease ........................... (2,504,155) $ (29,823,980) ================================= - ------------------------------------------------------------------------------- Class C Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 19,000,378 $ 247,610,407 Shares issued resulting from reinvestment of distributions ........ 3,153,077 39,508,063 --------------------------------- Total issued ........................... 22,153,455 287,118,470 Shares redeemed ........................ (5,333,158) (69,556,552) --------------------------------- Net increase ........................... 16,820,297 $ 217,561,918 ================================= - ------------------------------------------------------------------------------- Class C Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 26,855,950 $ 320,056,553 Shares issued resulting from reinvestment of distributions ........ 316,872 3,580,652 --------------------------------- Total issued ........................... 27,172,822 323,637,205 Shares redeemed ........................ (8,010,043) (95,860,544) --------------------------------- Net increase ........................... 19,162,779 $ 227,776,661 ================================= - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Core Fund (concluded) - ------------------------------------------------------------------------------- Class I Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 17,558,585 $ 242,813,544 Shares issued resulting from reinvestment of distributions ........ 2,153,754 28,580,315 --------------------------------- Total issued ........................... 19,712,339 271,393,859 Shares redeemed ........................ (5,666,091) (78,461,806) --------------------------------- Net increase ........................... 14,046,248 $ 192,932,053 ================================= - ------------------------------------------------------------------------------- Class I Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 16,652,465 $ 209,256,024 Shares issued resulting from reinvestment of distributions ........ 241,544 2,871,965 --------------------------------- Total issued ........................... 16,894,009 212,127,989 Shares redeemed ........................ (8,200,059) (103,663,058) --------------------------------- Net increase ........................... 8,693,950 $ 108,464,931 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 2,981,414 $ 39,508,089 Shares issued resulting from reinvestment of distributions ........ 243,317 3,102,298 --------------------------------- Total issued ........................... 3,224,731 42,610,387 Shares redeemed ........................ (1,193,040) (15,690,576) --------------------------------- Net increase ........................... 2,031,691 $ 26,919,811 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 3,599,772 $ 43,887,267 Shares issued resulting from reinvestment of distributions ........ 13,432 154,059 --------------------------------- Total issued ........................... 3,613,204 44,041,326 Shares redeemed ........................ (1,348,354) (16,500,842) --------------------------------- Net increase ........................... 2,264,850 $ 27,540,484 ================================= 30 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Notes to Financial Statements (continued) Merrill Lynch Large Cap Series Funds, Inc. Merrill Lynch Large Cap Growth Fund Net increase in net assets derived from capital share transactions was $128,449,639 and $102,839,683 for the six months ended April 30, 2006 and the year ended October 31, 2005, respectively. Transactions in capital shares for each class were as follows: - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Growth Fund - ------------------------------------------------------------------------------- Class A Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 4,182,424 $ 43,262,938 Automatic conversion of shares ......... 609,291 6,210,788 --------------------------------- Total issued ........................... 4,791,715 49,473,726 Shares redeemed ........................ (1,542,552) (15,801,169) --------------------------------- Net increase ........................... 3,249,163 $ 33,672,557 ================================= - ------------------------------------------------------------------------------- Class A Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 6,552,650 $ 58,552,118 Automatic conversion of shares ......... 479,396 4,340,086 --------------------------------- Total issued ........................... 7,032,046 62,892,204 Shares redeemed ........................ (2,602,492) (23,247,423) --------------------------------- Net increase ........................... 4,429,554 $ 39,644,781 ================================= - ------------------------------------------------------------------------------- Class B Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 1,927,869 $ 18,994,007 --------------------------------- Automatic conversion of shares ......... (638,265) (6,210,788) Shares redeemed ........................ (1,359,774) (13,235,815) --------------------------------- Total redeemed ......................... (1,998,039) (19,446,603) --------------------------------- Net decrease ........................... (70,170) $ (452,596) ================================= - ------------------------------------------------------------------------------- Class B Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 3,379,386 $ 29,012,975 --------------------------------- Automatic conversion of shares ......... (499,699) (4,340,086) Shares redeemed ........................ (3,768,945) (32,206,346) --------------------------------- Total redeemed ......................... (4,268,644) (36,546,432) --------------------------------- Net decrease ........................... (889,258) $ (7,533,457) ================================= - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Growth Fund (concluded) - ------------------------------------------------------------------------------- Class C Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 3,957,361 $ 38,835,738 Shares redeemed ........................ (1,654,948) (16,202,516) --------------------------------- Net increase ........................... 2,302,413 $ 22,633,222 ================================= - ------------------------------------------------------------------------------- Class C Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 5,368,655 $ 45,981,773 Shares redeemed ........................ (3,102,840) (26,622,404) --------------------------------- Net increase ........................... 2,265,815 $ 19,359,369 ================================= - ------------------------------------------------------------------------------- Class I Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 7,761,977 $ 81,895,221 Shares redeemed ........................ (2,200,743) (23,023,596) --------------------------------- Net increase ........................... 5,561,234 $ 58,871,625 ================================= - ------------------------------------------------------------------------------- Class I Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 7,718,763 $ 69,629,558 Shares redeemed ........................ (3,522,654) (31,902,918) --------------------------------- Net increase ........................... 4,196,109 $ 37,726,640 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 1,903,574 $ 19,201,454 Shares redeemed ........................ (543,925) (5,476,623) --------------------------------- Net increase ........................... 1,359,649 $ 13,724,831 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 2,649,241 $ 23,240,567 Shares redeemed ........................ (1,096,413) (9,598,217) --------------------------------- Net increase ........................... 1,552,828 $ 13,642,350 ================================= MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 31 Notes to Financial Statements (continued) Merrill Lynch Large Cap Series Funds, Inc. Merrill Lynch Large Cap Value Fund Net increase in net assets derived from capital share transactions was $684,599,845 and $576,505,050 for the six months ended April 30, 2006 and the year ended October 31, 2005, respectively. Transactions in capital shares for each class were as follows: - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Value Fund - ------------------------------------------------------------------------------- Class A Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 14,783,115 $ 261,121,998 Automatic conversion of shares ......... 845,270 14,826,008 Shares issued resulting from reinvestment of distributions ........ 975,834 16,637,969 --------------------------------- Total issued ........................... 16,604,219 292,585,975 Shares redeemed ........................ (2,698,771) (47,681,003) --------------------------------- Net increase ........................... 13,905,448 $ 244,904,972 ================================= - ------------------------------------------------------------------------------- Class A Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 14,908,526 $ 240,034,025 Automatic conversion of shares ......... 939,374 14,950,013 Shares issued resulting from reinvestment of distributions ........ 493,981 7,315,852 --------------------------------- Total issued ........................... 16,341,881 262,299,890 Shares redeemed ........................ (5,469,730) (88,547,806) --------------------------------- Net increase ........................... 10,872,151 $ 173,752,084 ================================= - ------------------------------------------------------------------------------- Class B Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 2,192,061 $ 36,997,157 Shares issued resulting from reinvestment of distributions ........ 604,494 9,895,568 --------------------------------- Total issued ........................... 2,796,555 46,892,725 --------------------------------- Automatic conversion of shares ......... (882,692) (14,826,008) Shares redeemed ........................ (2,185,601) (36,987,315) --------------------------------- Total redeemed ......................... (3,068,293) (51,813,323) --------------------------------- Net decrease ........................... (271,738) $ (4,920,598) ================================= - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Value Fund (continued) - ------------------------------------------------------------------------------- Class B Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 4,746,786 $ 72,547,018 Shares issued resulting from reinvestment of distributions ........ 645,906 9,204,154 --------------------------------- Total issued ........................... 5,392,692 81,751,172 --------------------------------- Automatic conversion of shares ......... (978,449) (14,950,013) Shares redeemed ........................ (4,040,521) (61,542,283) --------------------------------- Total redeemed ......................... (5,018,970) (76,492,296) --------------------------------- Net increase ........................... 373,722 $ 5,258,876 ================================= - ------------------------------------------------------------------------------- Class C Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 10,634,262 $ 179,487,100 Shares issued resulting from reinvestment of distributions ........ 1,099,483 17,954,551 --------------------------------- Total issued ........................... 11,733,745 197,441,651 Shares redeemed ........................ (2,577,471) (43,586,491) --------------------------------- Net increase ........................... 9,156,274 $ 153,855,160 ================================= - ------------------------------------------------------------------------------- Class C Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 12,540,291 $ 192,758,758 Shares issued resulting from reinvestment of distributions ........ 699,915 9,966,785 --------------------------------- Total issued ........................... 13,240,206 202,725,543 Shares redeemed ........................ (3,482,254) (53,395,043) --------------------------------- Net increase ........................... 9,757,952 $ 149,330,500 ================================= - ------------------------------------------------------------------------------- Class I Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 17,325,274 $ 310,725,593 Shares issued resulting from reinvestment of distributions ........ 1,250,335 21,630,795 --------------------------------- Total issued ........................... 18,575,609 332,356,388 Shares redeemed ........................ (4,118,087) (73,824,104) --------------------------------- Net increase ........................... 14,457,522 $ 258,532,284 ================================= 32 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Notes to Financial Statements (concluded) Merrill Lynch Large Cap Series Funds, Inc. - ------------------------------------------------------------------------------- Merrill Lynch Large Cap Value Fund (concluded) - ------------------------------------------------------------------------------- Class I Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 17,058,691 $ 286,306,800 Shares issued resulting from reinvestment of distributions ........ 549,731 8,245,964 --------------------------------- Total issued ........................... 17,608,422 294,552,764 Shares redeemed ........................ (4,781,111) (77,304,760) --------------------------------- Net increase ........................... 12,827,311 $ 217,248,004 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Six Months Dollar Ended April 30, 2006 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 2,335,620 $ 40,291,365 Shares issued resulting from reinvestment of distributions ........ 143,647 2,388,851 --------------------------------- Total issued ........................... 2,479,267 42,680,216 Shares redeemed ........................ (607,019) (10,452,189) --------------------------------- Net increase ........................... 1,872,248 $ 32,228,027 ================================= - ------------------------------------------------------------------------------- Class R Shares for the Year Dollar Ended October 31, 2005 Shares Amount - ------------------------------------------------------------------------------- Shares sold ............................ 2,583,162 $ 40,275,219 Shares issued resulting from reinvestment of distributions ........ 48,890 707,934 --------------------------------- Total issued ........................... 2,632,052 40,983,153 Shares redeemed ........................ (641,770) (10,067,567) --------------------------------- Net increase ........................... 1,990,282 $ 30,915,586 ================================= 4. Capital Loss Carrryforward: Merrill Lynch Large Cap Core Fund On October 31, 2005, the Fund had a net capital loss carryforward of $73,378,161, of which $43,235,070 expires in 2008, $14,033,211 expires in 2009, $13,653,465 expires in 2010 and $2,456,415 expires in 2011. This amount will be available to offset like amounts of any future taxable gains. Merrill Lynch Large Cap Growth Fund On October 31, 2005, the Fund had a net capital loss carryforward of $55,312,594, of which $5,224,996 expires in 2007, $2,705,691 expires in 2008, $6,931,833 expires in 2009 and $40,450,074 expires in 2010. This amount will be available to offset like amounts of any future taxable gains. Merrill Lynch Large Cap Value Fund On October 31, 2005, the Fund had a net capital loss carryforward of $191,235, all of which expires in 2010. This amount, subject to limitation, will be available to offset like amounts of any future taxable gains. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 33 Portfolio Information as of April 30, 2006 Master Large Cap Series Trust Sector Representation Percent of Master Large Cap Core Portfolio Total Investments - -------------------------------------------------------------------------------- Information Technology .................................... 22.8% Energy .................................................... 15.2 Financials ................................................ 13.1 Health Care ............................................... 12.3 Industrials ............................................... 10.6 Consumer Discretionary .................................... 8.1 Consumer Staples .......................................... 2.3 Materials ................................................. 2.2 Utilities ................................................. 1.0 Other* .................................................... 12.4 - -------------------------------------------------------------------------------- Percent of Master Large Cap Growth Portfolio Total Investments - -------------------------------------------------------------------------------- Information Technology .................................... 33.0% Industrials ............................................... 16.9 Health Care ............................................... 12.4 Consumer Discretionary .................................... 10.5 Financials ................................................ 7.0 Energy .................................................... 3.8 Materials ................................................. 2.8 Consumer Staples .......................................... 1.6 Producer Durables ......................................... 0.9 Other* .................................................... 11.1 - -------------------------------------------------------------------------------- Percent of Master Large Cap Value Portfolio Total Investments - -------------------------------------------------------------------------------- Financials ................................................ 23.7% Energy .................................................... 19.1 Information Technology .................................... 12.9 Health Care ............................................... 9.4 Consumer Discretionary .................................... 9.0 Industrials ............................................... 6.9 Materials ................................................. 2.0 Consumer Staples .......................................... 1.8 Producer Durables ......................................... 1.1 Telecommunications Services ............................... 1.0 Other* .................................................... 13.1 - -------------------------------------------------------------------------------- * Includes portfolio holdings in short-term investments. For Portfolio compliance purposes, sector and industry classifications refer to any one or more of the sector and industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Portfolio management. This definition may not apply for purposes of this report, which may combine sector and industry sub-classifications for reporting ease. Five Largest Industries Percent of Master Large Cap Core Portfolio Net Assets - -------------------------------------------------------------------------------- Oil, Gas & Consumable Fuels ............................... 17.3% Health Care Providers & Services .......................... 8.8 Semiconductors & Semiconductor Equipment .................. 8.3 Capital Markets ........................................... 6.7 Software .................................................. 6.4 - -------------------------------------------------------------------------------- Percent of Master Large Cap Growth Portfolio Net Assets - -------------------------------------------------------------------------------- Software .................................................. 11.8% Semiconductors & Semiconductor Equipment .................. 11.6 Health Care Providers & Services .......................... 7.7 Communications Equipment .................................. 4.8 Aerospace & Defense ....................................... 4.5 - -------------------------------------------------------------------------------- Percent of Master Large Cap Value Portfolio Net Assets - -------------------------------------------------------------------------------- Oil, Gas & Consumable Fuels ............................... 21.9% Insurance ................................................. 10.5 Capital Markets ........................................... 7.8 Health Care Providers & Services .......................... 7.7 Diversified Financial Services ............................ 5.4 - -------------------------------------------------------------------------------- 34 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Portfolio Information as of April 30, 2006 (concluded) Master Large Cap Series Trust Ten Largest Equity Holdings Percent of Master Large Cap Core Portfolio Net Assets - -------------------------------------------------------------------------------- Exxon Mobil Corp. ......................................... 3.3% Cisco Systems, Inc. ....................................... 1.9 General Electric Co. ...................................... 1.8 Hewlett-Packard Co. ....................................... 1.7 ConocoPhillips ............................................ 1.6 Goldman Sachs Group, Inc. ................................. 1.5 Pfizer, Inc. .............................................. 1.5 Texas Instruments, Inc. ................................... 1.4 Occidental Petroleum Corp. ................................ 1.4 Lehman Brothers Holdings, Inc. ............................ 1.3 - -------------------------------------------------------------------------------- Percent of Master Large Cap Growth Portfolio Net Assets - -------------------------------------------------------------------------------- Cisco Systems, Inc. ....................................... 3.1% General Electric Co. ...................................... 2.3 Texas Instruments, Inc. ................................... 1.9 Microsoft Corp. ........................................... 1.7 Motorola, Inc. ............................................ 1.6 Lockheed Martin Corp. ..................................... 1.5 Starbucks Corp. ........................................... 1.5 Aetna, Inc. ............................................... 1.3 The Charles Schwab Corp. .................................. 1.3 Cardinal Health, Inc. ..................................... 1.3 - -------------------------------------------------------------------------------- Percent of Master Large Cap Value Portfolio Net Assets - -------------------------------------------------------------------------------- Exxon Mobil Corp. ......................................... 5.9% JPMorgan Chase & Co. ...................................... 3.2 Hewlett-Packard Co. ....................................... 2.4 ConocoPhillips ............................................ 2.0 Morgan Stanley ............................................ 1.9 Citigroup, Inc. ........................................... 1.9 Goldman Sachs Group, Inc. ................................. 1.8 Occidental Petroleum Corp. ................................ 1.7 Lehman Brothers Holdings, Inc. ............................ 1.7 Valero Energy Corp. ....................................... 1.6 - -------------------------------------------------------------------------------- MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 35 Schedule of Investments Master Large Cap Core Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Consumer Discretionary--9.3% Auto Components--0.6% The Goodyear Tire & Rubber Co. (c)(d) 1,610,000 $ 22,540,000 -------------------------------------------------------------------------------- Automobiles--0.4% Harley-Davidson, Inc. 240,000 12,201,600 -------------------------------------------------------------------------------- Hotels, Restaurants & Leisure--1.9% Darden Restaurants, Inc. 950,000 37,620,000 Starbucks Corp. (c) 780,000 29,070,600 -------------- 66,690,600 -------------------------------------------------------------------------------- Household Durables--0.9% Harman International Industries, Inc. (d) 340,000 29,916,600 -------------------------------------------------------------------------------- Multiline Retail--2.1% JC Penney Co., Inc. 590,000 38,621,400 Nordstrom, Inc. 940,000 36,030,200 -------------- 74,651,600 -------------------------------------------------------------------------------- Specialty Retail--3.3% AutoNation, Inc. (c) 420,000 9,458,400 Circuit City Stores, Inc. 1,280,000 36,800,000 Office Depot, Inc. (c) 930,000 37,739,400 Staples, Inc. 1,150,000 30,371,500 -------------- 114,369,300 -------------------------------------------------------------------------------- Textiles, Apparel & Luxury Goods--0.1% Polo Ralph Lauren Corp. 60,000 3,643,200 -------------------------------------------------------------------------------- Total Consumer Discretionary 324,012,900 ========================================================================================= Consumer Staples--2.6% Food & Staples Retailing--0.8% The Kroger Co. 1,380,000 27,958,800 -------------------------------------------------------------------------------- Food Products--1.2% Archer-Daniels-Midland Co. 1,150,000 41,791,000 -------------------------------------------------------------------------------- Household Products--0.5% Procter & Gamble Co. 280,000 16,298,800 -------------------------------------------------------------------------------- Tobacco--0.1% Altria Group, Inc. 60,000 4,389,600 -------------------------------------------------------------------------------- Total Consumer Staples 90,438,200 ========================================================================================= Energy--17.3% Oil, Gas & Consumable Fuels--17.3% Amerada Hess Corp. (d) 260,000 37,250,200 Anadarko Petroleum Corp. 410,000 42,976,200 Apache Corp. 460,000 32,678,400 Chevron Corp. 80,000 4,881,600 ConocoPhillips 820,000 54,858,000 Devon Energy Corp. 690,000 41,475,900 Exxon Mobil Corp. 1,820,000 114,805,600 Kerr-McGee Corp. (d) 310,000 30,956,600 Marathon Oil Corp. 540,000 42,854,400 Occidental Petroleum Corp. 460,000 47,260,400 Pioneer Natural Resources Co. (d) 810,000 34,684,200 Sunoco, Inc. 480,000 38,899,200 Tesoro Corp. 520,000 36,358,400 Valero Energy Corp. 710,000 45,965,400 -------------------------------------------------------------------------------- Total Energy 605,904,500 ========================================================================================= Financials--15.0% Capital Markets--6.7% The Bear Stearns Cos., Inc. 280,000 39,902,800 The Charles Schwab Corp. 1,660,000 29,714,000 Goldman Sachs Group, Inc. 330,000 52,895,700 Janus Capital Group, Inc. 1,000,000 19,460,000 Lehman Brothers Holdings, Inc. (d) 310,000 46,856,500 Morgan Stanley 680,000 43,724,000 -------------- 232,553,000 -------------------------------------------------------------------------------- Commercial Banks--0.7% Bank of America Corp. 520,000 25,958,400 -------------------------------------------------------------------------------- Diversified Financial Services--2.3% Citigroup, Inc. 670,000 33,466,500 JPMorgan Chase & Co. 1,000,000 45,380,000 -------------- 78,846,500 -------------------------------------------------------------------------------- Insurance--5.3% AON Corp. (d) 940,000 39,395,400 American International Group, Inc. 110,000 7,177,500 MetLife, Inc. (d) 400,000 20,840,000 Prudential Financial, Inc. (d) 570,000 44,534,100 The St. Paul Travelers Cos., Inc. 810,000 35,664,300 UnumProvident Corp. (d) 1,240,000 25,184,400 W.R. Berkley Corp. 337,500 12,629,250 -------------- 185,424,950 -------------------------------------------------------------------------------- Total Financials 522,782,850 ========================================================================================= Health Care--14.0% Biotechnology--0.9% Applera Corp.--Applied Biosystems Group 600,000 17,304,000 Techne Corp. (c) 260,000 14,731,600 -------------- 32,035,600 -------------------------------------------------------------------------------- Health Care Equipment & Supplies--1.8% Becton Dickinson & Co. 430,000 27,107,200 Dade Behring Holdings, Inc. 570,000 22,230,000 Varian Medical Systems, Inc. (c) 250,000 13,095,000 -------------- 62,432,200 -------------------------------------------------------------------------------- Health Care Providers & Services--8.8% Aetna, Inc. 1,100,000 42,350,000 AmerisourceBergen Corp. 810,000 34,951,500 Cardinal Health, Inc. 600,000 40,410,000 Caremark Rx, Inc. 750,000 34,162,500 Cigna Corp. 210,000 22,470,000 Express Scripts, Inc. (c)(d) 490,000 38,288,600 Humana, Inc. (c) 560,000 25,300,800 McKesson Corp. 720,000 34,984,800 WellPoint, Inc. (c) 500,000 35,500,000 -------------- 308,418,200 -------------------------------------------------------------------------------- Pharmaceuticals--2.5% Johnson & Johnson 240,000 14,066,400 King Pharmaceuticals, Inc. (c) 1,200,000 20,868,000 Pfizer, Inc. 2,030,000 51,419,900 -------------- 86,354,300 -------------------------------------------------------------------------------- Total Health Care 489,240,300 ========================================================================================= 36 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Schedule of Investments (continued) Master Large Cap Core Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Industrials--12.0% Aerospace & Defense--2.8% Lockheed Martin Corp. 570,000 $ 43,263,000 Northrop Grumman Corp. 20,000 1,338,000 Precision Castparts Corp. 350,000 22,043,000 Raytheon Co. 730,000 32,317,100 -------------- 98,961,100 -------------------------------------------------------------------------------- Airlines--1.1% AMR Corp. (c)(d) 1,480,000 36,467,200 -------------------------------------------------------------------------------- Commercial Services & Supplies--1.8% Corporate Executive Board Co. 200,000 21,426,000 Waste Management, Inc. 1,130,000 42,329,800 -------------- 63,755,800 -------------------------------------------------------------------------------- Electrical Equipment--0.9% Rockwell Automation, Inc. (d) 410,000 29,708,600 -------------------------------------------------------------------------------- Industrial Conglomerates--1.8% General Electric Co. 1,820,000 62,953,800 -------------------------------------------------------------------------------- Machinery--1.7% Cummins, Inc. (d) 350,000 36,575,000 Joy Global, Inc. 260,000 17,079,400 Toro Co. 150,000 7,417,500 -------------- 61,071,900 -------------------------------------------------------------------------------- Road & Rail--1.5% CSX Corp. 600,000 41,094,000 Norfolk Southern Corp. 220,000 11,880,000 -------------- 52,974,000 -------------------------------------------------------------------------------- Trading Companies & Distributors--0.4% MSC Industrial Direct Co. Class A 290,000 15,039,400 -------------------------------------------------------------------------------- Total Industrials 420,931,800 ========================================================================================= Information Technology--26.0% Communications Equipment--3.9% Cisco Systems, Inc. (c) 3,160,000 66,202,000 Motorola, Inc. 2,060,000 43,981,000 Tellabs, Inc. (c) 1,640,000 25,994,000 -------------- 136,177,000 -------------------------------------------------------------------------------- Computers & Peripherals--4.3% Dell, Inc. (c) 1,270,000 33,274,000 Hewlett-Packard Co. 1,860,000 60,394,200 NCR Corp. (c) 650,000 25,610,000 Western Digital Corp. (c) 1,480,000 31,139,200 -------------- 150,417,400 -------------------------------------------------------------------------------- IT Services--2.1% CheckFree Corp. (c)(d) 530,000 28,551,100 Computer Sciences Corp. (c) 660,000 38,643,000 Sabre Holdings Corp. Class A 240,000 5,541,600 -------------- 72,735,700 -------------------------------------------------------------------------------- Office Electronics--1.0% Xerox Corp. (c) 2,450,000 34,398,000 -------------------------------------------------------------------------------- Semiconductors & Semiconductor Equipment--8.3% Advanced Micro Devices, Inc. (c)(d) 980,000 31,703,000 Broadcom Corp. Class A (c) 390,000 16,032,900 Intersil Corp. Class A 1,130,000 33,459,300 LSI Logic Corp. (c) 3,100,000 33,015,000 Lam Research Corp. (c) 700,000 34,216,000 Microchip Technology, Inc. 580,000 21,610,800 National Semiconductor Corp. 1,060,000 31,778,800 Nvidia Corp. (c) 1,350,000 39,447,000 Texas Instruments, Inc. 1,450,000 50,329,500 -------------- 291,592,300 -------------------------------------------------------------------------------- Software--6.4% BEA Systems, Inc. (c)(d) 2,650,000 35,112,500 BMC Software, Inc. (c) 1,100,000 23,694,000 CA, Inc. (d) 620,000 15,723,200 Citrix Systems, Inc. (c) 890,000 35,528,800 Compuware Corp. (c) 1,110,000 8,524,800 Intuit, Inc. (c)(d) 700,000 37,919,000 Microsoft Corp. 1,190,000 28,738,500 Red Hat, Inc. (c)(d) 1,260,000 37,031,400 -------------- 222,272,200 -------------------------------------------------------------------------------- Total Information Technology 907,592,600 ========================================================================================= Materials--2.5% Chemicals--0.0% Tronox, Inc. Class B 3 59 -------------------------------------------------------------------------------- Metals & Mining--2.5% Allegheny Technologies, Inc. (d) 120,000 8,320,800 Freeport-McMoRan Copper & Gold, Inc. Class B (d) 580,000 37,456,400 Nucor Corp. (d) 370,000 40,263,400 -------------- 86,040,600 -------------------------------------------------------------------------------- Total Materials 86,040,659 ========================================================================================= Telecommunications Services--1.1% Diversified Telecommunications Services--1.1% Qwest Communications International Inc. (c) 5,710,000 38,314,100 -------------------------------------------------------------------------------- Total Telecommunications Services 38,314,100 ========================================================================================= Total Common Stocks (Cost--$2,842,363,751)--99.8% 3,485,257,909 ========================================================================================= Short-Term Beneficial Securities Interest ========================================================================================= Merrill Lynch Liquidity Series, LLC Cash Sweep Series I, 4.75% (a)(e) $ 6,646,588 6,646,588 Merrill Lynch Liquidity Series, LLC Money Market Series, 4.89% (a)(b)(e) 489,417,300 489,417,300 -------------------------------------------------------------------------------- Total Short-Term Securities (Cost--$496,063,888)--14.2% 496,063,888 ========================================================================================= Total Investments (Cost--$3,338,427,639*)--114.0% 3,981,321,797 Liabilities in Excess of Other Assets--(14.0%) (489,156,982) -------------- Net Assets--100.0% $3,492,164,815 ============== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 37 Schedule of Investments (concluded) Master Large Cap Core Portfolio * The cost and unrealized appreciation (depreciation) of investments as of April 30, 2006, as computed for federal income tax purposes, were as follows: Aggregate cost ............................. $ 3,351,791,829 =============== Gross unrealized appreciation .............. $ 697,407,754 Gross unrealized depreciation .............. (67,877,786) --------------- Net unrealized appreciation ................ $ 629,529,968 =============== (a) Investments in companies considered to be an affiliate of the Portfolio, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: -------------------------------------------------------------------------- Net Interest Affiliate Activity Income -------------------------------------------------------------------------- Merrill Lynch Liquidity Series, LLC Cash Sweep Series I $ 2,525,247 $166,970 Merrill Lynch Liquidity Series, LLC Money Market Series $352,625,100 $158,874 -------------------------------------------------------------------------- (b) Security was purchased with the cash proceeds from securities loans. (c) Non-income producing security. (d) Security, or a portion of security, is on loan. (e) Represents the current yield as of 4/30/2006. o For Portfolio compliance purposes, the Portfolio's sector and industry classifications refer to any one or more of the sector and industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Portfolio management. This definition may not apply for purposes of this report, which may combine sector and industry sub-classifications for reporting ease. Sectors and industries are shown as a percent of net assets. See Notes to Financial Statements. 38 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Schedule of Investments Master Large Cap Growth Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Consumer Discretionary--11.8% Auto Components--1.0% The Goodyear Tire & Rubber Co. (a)(e) 487,000 $ 6,818,000 -------------------------------------------------------------------------------- Automobiles--1.1% Harley-Davidson, Inc. (e) 145,000 7,371,800 -------------------------------------------------------------------------------- Hotels, Restaurants & Leisure--2.6% Darden Restaurants, Inc. (e) 195,000 7,722,000 Starbucks Corp. (a) 268,000 9,988,360 -------------- 17,710,360 -------------------------------------------------------------------------------- Household Durables--0.9% Harman International Industries, Inc. 71,000 6,247,290 -------------------------------------------------------------------------------- Media--0.9% Walt Disney Co. 228,000 6,374,880 -------------------------------------------------------------------------------- Multiline Retail--2.2% JC Penney Co., Inc. 113,000 7,396,980 Nordstrom, Inc. 207,000 7,934,310 -------------- 15,331,290 -------------------------------------------------------------------------------- Specialty Retail--2.2% Circuit City Stores, Inc. 263,000 7,561,250 Claire's Stores, Inc. 208,000 7,325,760 -------------- 14,887,010 -------------------------------------------------------------------------------- Textiles, Apparel & Luxury Goods--0.9% Polo Ralph Lauren Corp. 105,000 6,375,600 -------------------------------------------------------------------------------- Total Consumer Discretionary 81,116,230 ========================================================================================= Consumer Staples--1.8% Beverages--0.9% Pepsi Bottling Group, Inc. 196,000 6,291,600 -------------------------------------------------------------------------------- Household Products--0.9% Procter & Gamble Co. 100,000 5,821,000 -------------------------------------------------------------------------------- Total Consumer Staples 12,112,600 ========================================================================================= Energy--4.3% Oil, Gas & Consumable Fuels--4.3% Anadarko Petroleum Corp. 47,000 4,926,540 ConocoPhillips 44,726 2,992,169 Pioneer Natural Resources Co. 148,000 6,337,360 Sunoco, Inc. 99,000 8,022,960 Tesoro Corp. 105,000 7,341,600 -------------------------------------------------------------------------------- Total Energy 29,620,629 ========================================================================================= Financials--7.8% Capital Markets--3.6% The Charles Schwab Corp. 502,000 8,985,800 Goldman Sachs Group, Inc. 50,000 8,014,500 Morgan Stanley 119,000 7,651,700 -------------- 24,652,000 -------------------------------------------------------------------------------- Diversified Financial Services--1.1% Moody's Corp. 125,000 7,751,250 -------------------------------------------------------------------------------- Insurance--3.1% The Hanover Insurance Group, Inc. 129,000 6,824,100 Prudential Financial, Inc. 95,000 7,422,350 W.R. Berkley Corp. 189,000 7,072,380 -------------- 21,318,830 -------------------------------------------------------------------------------- Total Financials 53,722,080 ========================================================================================= Health Care--13.9% Biotechnology--1.6% Gilead Sciences, Inc. (a) 83,000 4,772,500 Techne Corp. (a) 111,000 6,289,260 -------------- 11,061,760 -------------------------------------------------------------------------------- Health Care Equipment & Supplies--2.6% Becton Dickinson & Co. 98,000 6,177,920 Dade Behring Holdings, Inc. 105,000 4,095,000 Varian Medical Systems, Inc. (a)(e) 146,000 7,647,480 -------------- 17,920,400 -------------------------------------------------------------------------------- Health Care Providers & Services--7.7% Aetna, Inc. 235,000 9,047,500 AmerisourceBergen Corp. 128,000 5,523,200 Cardinal Health, Inc. 133,000 8,957,550 Caremark Rx, Inc. (e) 159,000 7,242,450 Express Scripts, Inc. (a) 103,000 8,048,420 Humana, Inc. (a) 118,000 5,331,240 McKesson Corp. 156,000 7,580,040 WellPoint, Inc. (a) 19,000 1,349,000 -------------- 53,079,400 -------------------------------------------------------------------------------- Pharmaceuticals--2.0% Johnson & Johnson 79,000 4,630,190 Merck & Co., Inc. 143,000 4,922,060 Pfizer, Inc. 156,000 3,951,480 -------------- 13,503,730 -------------------------------------------------------------------------------- Total Health Care 95,565,290 ========================================================================================= Industrials--19.0% Aerospace & Defense--4.5% Boeing Co. (e) 75,000 6,258,750 Lockheed Martin Corp. 133,000 10,094,700 Precision Castparts Corp. 112,000 7,053,760 Raytheon Co. 167,000 7,393,090 -------------- 30,800,300 -------------------------------------------------------------------------------- Airlines--1.1% AMR Corp. (a) 301,000 7,416,640 -------------------------------------------------------------------------------- Commercial Services & Supplies--3.8% Corporate Executive Board Co. 72,000 7,713,360 Dun & Bradstreet Corp. (a) 61,000 4,698,220 Steelcase, Inc. Class A 314,000 5,878,080 Waste Management, Inc. 209,000 7,829,140 -------------- 26,118,800 -------------------------------------------------------------------------------- Electrical Equipment--2.4% Rockwell Automation, Inc. (e) 103,000 7,463,380 Roper Industries, Inc. 48,000 2,278,080 Thomas & Betts Corp. (a) 124,000 7,061,800 -------------- 16,803,260 -------------------------------------------------------------------------------- Industrial Conglomerates--2.2% General Electric Co. (e) 447,000 15,461,730 -------------------------------------------------------------------------------- Machinery--3.9% Caterpillar, Inc. 67,000 5,074,580 Cummins, Inc. (e) 68,000 7,106,000 Joy Global, Inc. 110,000 7,225,900 Toro Co. 143,000 7,071,350 -------------- 26,477,830 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 39 Schedule of Investments (continued) Master Large Cap Growth Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Industrials (concluded) Trading Companies & Distributors--1.1% MSC Industrial Direct Co. Class A 140,000 $ 7,260,400 -------------------------------------------------------------------------------- Total Industrials 130,338,960 ========================================================================================= Information Technology--37.0% Communications Equipment--4.8% Cisco Systems, Inc. (a) 1,032,000 21,620,400 Motorola, Inc. 525,000 11,208,750 -------------- 32,829,150 -------------------------------------------------------------------------------- Computers & Peripherals--3.3% Dell, Inc. (a) 336,000 8,803,200 NCR Corp. (a) 140,000 5,516,000 Western Digital Corp. (a) 390,000 8,205,600 -------------- 22,524,800 -------------------------------------------------------------------------------- Electronic Equipment & Instruments--1.9% AVX Corp. 251,000 4,467,800 Agilent Technologies, Inc. (a) 225,000 8,644,500 -------------- 13,112,300 -------------------------------------------------------------------------------- IT Services--3.6% Ceridian Corp. (a) 284,000 6,881,320 CheckFree Corp. (a) 137,000 7,380,190 Electronic Data Systems Corp. 273,000 7,392,840 Paychex, Inc. 79,000 3,190,810 -------------- 24,845,160 -------------------------------------------------------------------------------- Semiconductors & Semiconductor Equipment--11.6% Advanced Micro Devices, Inc. (a)(e) 250,000 8,087,500 Analog Devices, Inc. 145,000 5,498,400 Broadcom Corp. Class A (a) 150,000 6,166,500 Intersil Corp. Class A 252,000 7,461,720 LSI Logic Corp. (a) 671,000 7,146,150 Lam Research Corp. (a) 165,000 8,065,200 Microchip Technology, Inc. 206,000 7,675,560 National Semiconductor Corp. 281,000 8,424,380 Nvidia Corp. (a)(e) 284,000 8,298,480 Texas Instruments, Inc. (e) 377,000 13,085,670 -------------- 79,909,560 -------------------------------------------------------------------------------- Software--11.8% BEA Systems, Inc. (a) 527,000 6,982,750 BMC Software, Inc. (a) 332,000 7,151,280 CA, Inc. (e) 309,000 7,836,240 Cadence Design Systems, Inc. (a)(e) 394,000 7,458,420 Citrix Systems, Inc. (a) 191,000 7,624,720 Compuware Corp. (a) 586,000 4,500,480 Fair Isaac Corp. (e) 175,000 6,494,250 Intuit, Inc. (a) 145,000 7,854,650 Microsoft Corp. 474,000 11,447,100 Red Hat, Inc. (a)(e) 260,000 7,641,400 Synopsys, Inc. (a) 282,000 6,156,060 -------------- 81,147,350 -------------------------------------------------------------------------------- Total Information Technology 254,368,320 ========================================================================================= Materials--3.1% Metals & Mining--3.1% Allegheny Technologies, Inc. 104,000 7,211,360 Freeport-McMoRan Copper & Gold, Inc. Class B (e) 119,000 7,685,020 Nucor Corp. 59,000 6,420,380 -------------------------------------------------------------------------------- Total Materials 21,316,760 ========================================================================================= Producer Durables--1.1% Road & Rail--1.1% Norfolk Southern Corp. 134,000 7,236,000 -------------------------------------------------------------------------------- Total Producer Durables 7,236,000 -------------------------------------------------------------------------------- Total Common Stocks (Cost--$591,444,687)--99.8% 685,396,869 ========================================================================================= Short-Term Beneficial Securities Interest ========================================================================================= Merrill Lynch Liquidity Series, LLC Cash Sweep Series I, 4.75% (b)(c) $ 2,293,889 2,293,889 Merrill Lynch Liquidity Series, LLC Money Market Series, 4.89% (b)(c)(d) 83,212,600 83,212,600 -------------------------------------------------------------------------------- Total Short-Term Securities (Cost--$85,506,489)--12.5% 85,506,489 ========================================================================================= Total Investments (Cost--$676,951,176*)--112.3% 770,903,358 Liabilities in Excess of Other Assets--(12.3%) (84,270,300) -------------- Net Assets--100.0% $ 686,633,058 ============== 40 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Schedule of Investments (concluded) Master Large Cap Growth Portfolio * The cost and unrealized appreciation (depreciation) of investments as of April 30, 2006, as computed for federal income tax purposes, were as follows: Aggregate cost .............................. $ 679,801,093 ============= Gross unrealized appreciation ............... $ 107,811,287 Gross unrealized depreciation ............... (16,709,022) ------------- Net unrealized appreciation ................. $ 91,102,265 ============= (a) Non-income producing security. (b) Investments in companies considered to be an affiliate of the Portfolio, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: -------------------------------------------------------------------------- Net Interest Affiliate Activity Income -------------------------------------------------------------------------- Merrill Lynch Liquidity Series, LLC Cash Sweep Series I $ 2,109,443 $ 54,322 Merrill Lynch Liquidity Series, LLC Money Market Series $47,513,200 $ 27,621 -------------------------------------------------------------------------- (c) Represents the current yield as of 4/30/2006. (d) Security was purchased with the cash proceeds from securities loans. (e) Security, or a portion of security, is on loan. o For Portfolio compliance purposes, the Portfolio's sector and industry classifications refer to any one or more of the sector and industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Portfolio management. This definition may not apply for purposes of this report, which may combine sector and industry sub-classifications for reporting ease. Sectors and industries are shown as a percent of net assets. See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 41 Schedule of Investments Master Large Cap Value Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Consumer Discretionary--10.3% Auto Components--1.0% The Goodyear Tire & Rubber Co. (c)(d) 1,670,000 $ 23,380,000 -------------------------------------------------------------------------------- Hotels, Restaurants & Leisure--0.6% Darden Restaurants, Inc. (d) 380,000 15,048,000 -------------------------------------------------------------------------------- Household Durables--0.5% Whirlpool Corp. (d) 130,000 11,667,500 -------------------------------------------------------------------------------- Leisure Equipment & Products--0.7% Hasbro, Inc. 830,000 16,359,300 -------------------------------------------------------------------------------- Multiline Retail--2.7% Dillard's, Inc. Class A (d) 840,000 21,907,200 JC Penney Co., Inc. 440,000 28,802,400 Nordstrom, Inc. (d) 340,000 13,032,200 -------------- 63,741,800 -------------------------------------------------------------------------------- Specialty Retail--3.9% AutoNation, Inc. (c)(d) 850,000 19,142,000 Circuit City Stores, Inc. 900,000 25,875,000 Claire's Stores, Inc. (d) 580,000 20,427,600 Office Depot, Inc. (c) 680,000 27,594,400 -------------- 93,039,000 -------------------------------------------------------------------------------- Textiles, Apparel & Luxury Goods--0.9% Polo Ralph Lauren Corp. 360,000 21,859,200 -------------------------------------------------------------------------------- Total Consumer Discretionary 245,094,800 ========================================================================================= Consumer Staples--2.1% Beverages--0.6% Pepsi Bottling Group, Inc. 470,000 15,087,000 -------------------------------------------------------------------------------- Food & Staples Retailing--0.1% The Kroger Co. 130,000 2,633,800 -------------------------------------------------------------------------------- Food Products--1.4% Archer-Daniels-Midland Co. (d) 890,000 32,342,600 -------------------------------------------------------------------------------- Total Consumer Staples 50,063,400 ========================================================================================= Energy--21.9% Oil, Gas & Consumable Fuels--21.9% Amerada Hess Corp. (c)(d) 190,000 27,221,300 Anadarko Petroleum Corp. 310,000 32,494,200 Apache Corp. (d) 380,000 26,995,200 ConocoPhillips 710,000 47,499,000 Devon Energy Corp. (d) 520,000 31,257,200 Exxon Mobil Corp. 2,240,000 141,299,200 Kerr-McGee Corp. 270,000 26,962,160 Marathon Oil Corp. 430,000 34,124,800 Occidental Petroleum Corp. 390,000 40,068,600 Pioneer Natural Resources Co. (d) 550,000 23,551,000 Sunoco, Inc. 310,000 25,122,400 Tesoro Corp. (d) 360,000 25,171,200 Valero Energy Corp. 590,000 38,196,600 -------------------------------------------------------------------------------- Total Energy 519,962,860 ========================================================================================= Financials--27.2% Capital Markets--7.8% The Bear Stearns Cos., Inc. 210,000 29,927,100 Goldman Sachs Group, Inc. (d) 270,000 43,278,300 Janus Capital Group, Inc. (d) 1,230,000 23,935,800 Lehman Brothers Holdings, Inc. (d) 260,000 39,299,000 Morgan Stanley 700,000 45,010,000 State Street Corp. 70,000 4,572,400 -------------- 186,022,600 -------------------------------------------------------------------------------- Commercial Banks--1.5% Bank of America Corp. 690,000 34,444,800 -------------------------------------------------------------------------------- Diversified Financial Services--5.4% CIT Group, Inc. 130,000 7,021,300 Citigroup, Inc. 900,000 44,955,000 JPMorgan Chase & Co. 1,700,000 77,146,000 -------------- 129,122,300 -------------------------------------------------------------------------------- Insurance--10.5% AON Corp. (d) 690,000 28,917,900 American Financial Group, Inc. (d) 360,000 15,940,800 CNA Financial Corp. (c)(d) 280,000 8,999,200 The Hanover Insurance Group, Inc. 50,000 2,645,000 Hartford Financial Services Group, Inc. 60,000 5,515,800 Lincoln National Corp. 380,000 22,070,400 MetLife, Inc. (d) 220,000 11,462,000 Nationwide Financial Services, Inc. Class A 270,000 11,847,600 Old Republic International Corp. (d) 587,500 13,071,875 Principal Financial Group, Inc. (d) 450,000 23,089,500 Prudential Financial, Inc. (d) 440,000 34,377,200 The St. Paul Travelers Cos., Inc. 650,000 28,619,500 UnumProvident Corp. (d) 860,000 17,466,600 W.R. Berkley Corp. 690,000 25,819,800 -------------- 249,843,175 -------------------------------------------------------------------------------- Thrifts & Mortgage Finance--2.0% MGIC Investment Corp. (d) 340,000 24,038,000 The PMI Group, Inc. (d) 510,000 23,536,500 -------------- 47,574,500 -------------------------------------------------------------------------------- Total Financials 647,007,375 ========================================================================================= Health Care--10.7% Biotechnology--1.1% Applera Corp.--Applied Biosystems Group 920,000 26,532,800 -------------------------------------------------------------------------------- Health Care Providers & Services--7.7% Aetna, Inc. 680,000 26,180,000 AmerisourceBergen Corp. 620,000 26,753,000 Cardinal Health, Inc. 400,000 26,940,000 Caremark Rx, Inc. 410,000 18,675,500 Health Net, Inc. (c) 430,000 17,501,000 Humana, Inc. (c) 360,000 16,264,800 McKesson Corp. (d) 520,000 25,266,800 WellPoint, Inc. (c) 350,000 24,850,000 -------------- 182,431,100 -------------------------------------------------------------------------------- 42 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Schedule of Investments (continued) Master Large Cap Value Portfolio Shares Sector Industry Common Stocks Held Value ========================================================================================= Health Care (concluded) Pharmaceuticals--1.9% King Pharmaceuticals, Inc. (c) 1,480,000 $ 25,737,200 Pfizer, Inc. 820,000 20,770,600 -------------- 46,507,800 -------------------------------------------------------------------------------- Total Health Care 255,471,700 ========================================================================================= Industrials--7.9% Aerospace & Defense--3.5% Northrop Grumman Corp. 430,000 28,767,000 Precision Castparts Corp. 400,000 25,192,000 Raytheon Co. 660,000 29,218,200 -------------- 83,177,200 -------------------------------------------------------------------------------- Electrical Equipment--1.1% Rockwell Automation, Inc. 100,000 7,246,000 Thomas & Betts Corp. (c) 310,000 17,654,500 -------------- 24,900,500 -------------------------------------------------------------------------------- Machinery--2.0% Cummins, Inc. (d) 230,000 24,035,000 SPX Corp. (d) 430,000 23,542,500 -------------- 47,577,500 -------------------------------------------------------------------------------- Road & Rail--1.3% CSX Corp. 450,000 30,820,500 Norfolk Southern Corp. 20,000 1,080,000 -------------- 31,900,500 -------------------------------------------------------------------------------- Total Industrials 187,555,700 ========================================================================================= Information Technology--14.7% Communications Equipment--0.7% Motorola, Inc. 750,000 16,012,500 -------------------------------------------------------------------------------- Computers & Peripherals--3.6% Hewlett-Packard Co. 1,770,000 57,471,900 NCR Corp. (c) 290,000 11,426,000 Western Digital Corp. (c) 860,000 18,094,400 -------------- 86,992,300 -------------------------------------------------------------------------------- Electronic Equipment & Instruments--0.9% Arrow Electronics, Inc. (c) 620,000 22,444,000 -------------------------------------------------------------------------------- IT Services--2.2% Ceridian Corp. (c) 570,000 13,811,100 CheckFree Corp. (c) 180,000 9,696,600 Computer Sciences Corp. (c)(d) 480,000 28,104,000 -------------- 51,611,700 -------------------------------------------------------------------------------- Office Electronics--1.2% Xerox Corp. (c) 2,050,000 28,782,000 -------------------------------------------------------------------------------- Semiconductors & Semiconductor Equipment--1.8% Advanced Micro Devices, Inc. (c) 160,000 5,176,000 Intersil Corp. Class A 520,000 15,397,200 LSI Logic Corp. (c) 2,030,000 21,619,500 -------------- 42,192,700 -------------------------------------------------------------------------------- Software--4.3% BEA Systems, Inc. (c) 1,100,000 14,575,000 BMC Software, Inc. (c) 1,050,000 22,617,000 Cadence Design Systems, Inc. (c) 890,000 16,847,700 Compuware Corp. (c) 1,980,000 15,206,400 Fair Isaac Corp. 440,000 16,328,400 Sybase, Inc. (c) 640,000 13,932,800 Synopsys, Inc. (c) 150,000 3,274,500 -------------- 102,781,800 -------------------------------------------------------------------------------- Total Information Technology 350,817,000 ========================================================================================= Materials--2.3% Chemicals--0.0% Tronox, Inc. Class B 3 59 -------------------------------------------------------------------------------- Metals & Mining--1.3% Nucor Corp. 280,000 30,469,600 -------------------------------------------------------------------------------- Paper & Forest Products--1.0% MeadWestvaco Corp. 850,000 24,233,500 -------------------------------------------------------------------------------- Total Materials 54,703,159 ========================================================================================= Producer Durables--1.3% Commercial Services & Supplies--1.3% Waste Management, Inc. 800,000 29,968,000 -------------------------------------------------------------------------------- Total Producer Durables 29,968,000 ========================================================================================= Telecommunications Services--1.2% Diversified Telecommunication Services--1.2% Qwest Communications International Inc. (c)(d) 4,120,000 27,645,200 -------------------------------------------------------------------------------- Total Telecommunications Services 27,645,200 -------------------------------------------------------------------------------- Total Common Stocks (Cost--$1,980,483,601)--99.6% 2,368,289,194 ========================================================================================= Short-Term Beneficial Securities Interest ========================================================================================= Merrill Lynch Liquidity Series, LLC Cash Sweep Series I, 4.75% (a)(e) $ 5,529,885 5,529,885 Merrill Lynch Liquidity Series, LLC Money Market Series, 4.89% (a)(b)(e) 350,224,350 350,224,350 -------------------------------------------------------------------------------- Total Short-Term Securities (Cost--$355,754,235)--15.0% 355,754,235 ========================================================================================= Total Investments (Cost--$2,336,237,836*)--114.6% 2,724,043,429 Liabilities in Excess of Other Assets--(14.6%) (346,766,536) -------------- Net Assets--100.0% $2,377,276,893 ============== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 43 Schedule of Investments (concluded) Master Large Cap Value Portfolio * The cost and unrealized appreciation (depreciation) of investments as of April 30, 2006, as computed for federal income tax purposes, were as follows: Aggregate cost ............................. $ 2,340,901,040 =============== Gross unrealized appreciation .............. $ 406,749,708 Gross unrealized depreciation .............. (23,607,319) --------------- Net unrealized appreciation ................ $ 383,142,389 =============== (a) Investments in companies considered to be an affiliate of the Portfolio, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: -------------------------------------------------------------------------- Net Interest Affiliate Activity Income -------------------------------------------------------------------------- Merrill Lynch Liquidity Series, LLC Cash Sweep Series I $ (2,994,044) $215,574 Merrill Lynch Liquidity Series, LLC Money Market Series $261,937,350 $ 92,392 -------------------------------------------------------------------------- (b) Security was purchased with the cash proceeds from securities loans. (c) Non-income producing security. (d) Security, or a portion of security, is on loan. (e) Represents the current yield as of 4/30/2006. o For Portfolio compliance purposes, the Portfolio's sector and industry classifications refer to any one or more of the sector and industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Portfolio management. This definition may not apply for purposes of this report, which may combine sector and industry sub-classifications for reporting ease. Sectors and industries are shown as a percent of net assets. See Notes to Financial Statements. 44 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Assets and Liabilities Master Large Cap Series Trust Master Large Master Large Master Large Cap Core Cap Growth Cap Value As of April 30, 2006 Portfolio Portfolio Portfolio =================================================================================================================================== Assets - ----------------------------------------------------------------------------------------------------------------------------------- Investments in unaffiliated securities, at value*+ ......... $3,485,257,909 $ 685,396,869 $2,368,289,194 Investments in affiliated securities, at value** ........... 496,063,888 85,506,489 355,754,235 Cash ....................................................... 1,597 -- 1,516,054 Receivables: Securities sold ........................................... 35,232,150 9,336,684 15,082,793 Contributions ............................................. 11,999,269 2,759,537 14,372,609 Dividends ................................................. 1,810,700 255,120 1,960,000 Securities lending ........................................ 28,298 3,194 30,465 Prepaid expenses ........................................... 42,280 8,841 22,579 -------------------------------------------------------- Total assets ............................................... 4,030,436,091 783,266,734 2,757,027,929 -------------------------------------------------------- =================================================================================================================================== Liabilities - ----------------------------------------------------------------------------------------------------------------------------------- Collateral on securities loaned, at value .................. 489,417,300 83,212,600 350,224,350 Bank overdraft ............................................. -- 54,832 -- Payables: Securities purchased ...................................... 42,363,216 11,641,040 25,181,826 Withdrawals ............................................... 5,016,645 1,371,824 3,317,196 Investment adviser ........................................ 1,240,783 263,117 892,303 Other affiliates .......................................... 33,651 6,379 19,950 Accrued expenses ........................................... 199,681 83,884 115,411 -------------------------------------------------------- Total liabilities .......................................... 538,271,276 96,633,676 379,751,036 -------------------------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Net assets ................................................. $3,492,164,815 $ 686,633,058 $2,377,276,893 ======================================================== =================================================================================================================================== Net Assets Consist of - ----------------------------------------------------------------------------------------------------------------------------------- Investors' capital ......................................... $2,849,270,657 $ 592,680,876 $1,989,471,300 Unrealized appreciation--net ............................... 642,894,158 93,952,182 387,805,593 -------------------------------------------------------- Net Assets ................................................. $3,492,164,815 $ 686,633,058 $2,377,276,893 ======================================================== * Identified cost for unaffiliated securities ............. $2,842,363,751 $ 591,444,687 $1,980,483,601 ======================================================== ** Identified cost for affiliated securities ............... $ 496,063,888 $ 85,506,489 $ 355,754,235 ======================================================== + Securities loaned, at value ............................. $ 467,967,223 $ 80,840,537 $ 340,166,024 ======================================================== See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 45 Statements of Operations Master Large Cap Series Trust Master Large Master Large Master Large Cap Core Cap Growth Cap Value For the Six Months Ended April 30, 2006 Portfolio Portfolio Portfolio =================================================================================================================================== Investment Income - ----------------------------------------------------------------------------------------------------------------------------------- Dividends .................................................. $ 15,280,809 $ 2,177,170 $ 12,048,517 Interest from affiliates ................................... 166,970 54,322 215,574 Securities lending--net .................................... 158,874 27,621 92,392 -------------------------------------------------------- Total income ............................................... 15,606,653 2,259,113 12,356,483 -------------------------------------------------------- =================================================================================================================================== Expenses - ----------------------------------------------------------------------------------------------------------------------------------- Investment advisory fees ................................... 7,120,378 1,450,824 4,735,604 Accounting services ........................................ 271,190 109,712 202,540 Custodian fees ............................................. 73,028 26,237 54,056 Professional fees .......................................... 44,922 21,294 27,975 Trustees' fees and expenses ................................ 42,547 13,820 30,029 Pricing fees ............................................... 503 515 532 Other ...................................................... 30,761 6,814 12,889 -------------------------------------------------------- Total expenses ............................................. 7,583,329 1,629,216 5,063,625 -------------------------------------------------------- Investment income--net ..................................... 8,023,324 629,897 7,292,858 -------------------------------------------------------- =================================================================================================================================== Realized & Unrealized Gain--Net - ----------------------------------------------------------------------------------------------------------------------------------- Realized gain on investments--net .......................... 105,686,005 24,131,080 48,571,943 Change in unrealized appreciation on investments--net ...... 283,341,088 46,824,193 183,694,465 -------------------------------------------------------- Total realized and unrealized gain--net .................... 389,027,093 70,955,273 232,266,408 -------------------------------------------------------- Net Increase in Net Assets Resulting from Operations ....... $ 397,050,417 $ 71,585,170 $ 239,559,266 ======================================================== See Notes to Financial Statements. 46 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Changes in Net Assets Master Large Cap Series Trust Master Large Cap Core Portfolio --------------------------------------- For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net .................................................... $ 8,023,324 $ 16,926,054 Realized gain--net ........................................................ 105,686,005 185,237,400 Change in unrealized appreciation--net .................................... 283,341,088 159,284,150 --------------------------------------- Net increase in net assets resulting from operations ...................... 397,050,417 361,447,604 --------------------------------------- =================================================================================================================================== Capital Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Proceeds from contributions ............................................... 794,862,930 1,040,896,976 Fair value of withdrawals ................................................. (366,447,278) (566,946,131) --------------------------------------- Net increase in net assets derived from capital transactions .............. 428,415,652 473,950,845 --------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets .............................................. 825,466,069 835,398,449 Beginning of period ....................................................... 2,666,698,746 1,831,300,297 --------------------------------------- End of period ............................................................. $ 3,492,164,815 $ 2,666,698,746 ======================================= See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 47 Statements of Changes in Net Assets Master Large Cap Series Trust Master Large Cap Growth Portfolio --------------------------------------- For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net .................................................... $ 629,897 $ 1,419,849 Realized gain--net ........................................................ 24,131,080 27,951,501 Change in unrealized appreciation--net .................................... 46,824,193 17,275,515 --------------------------------------- Net increase in net assets resulting from operations ...................... 71,585,170 46,646,865 --------------------------------------- =================================================================================================================================== Capital Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Proceeds from contributions ............................................... 202,189,358 226,416,991 Fair value of withdrawals ................................................. (76,539,592) (128,065,615) --------------------------------------- Net increase in net assets derived from capital transactions .............. 125,649,766 98,351,376 --------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets .............................................. 197,234,936 144,998,241 Beginning of period ....................................................... 489,398,122 344,399,881 --------------------------------------- End of period ............................................................. $ 686,633,058 $ 489,398,122 ======================================= See Notes to Financial Statements. 48 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Statements of Changes in Net Assets Master Large Cap Series Trust Master Large Cap Value Portfolio --------------------------------------- For the Six For the Months Ended Year Ended April 30, October 31, Increase (Decrease) in Net Assets: 2006 2005 =================================================================================================================================== Operations - ----------------------------------------------------------------------------------------------------------------------------------- Investment income--net .................................................... $ 7,292,858 $ 9,203,144 Realized gain--net ........................................................ 48,571,943 77,262,988 Change in unrealized appreciation--net .................................... 183,694,465 112,124,763 --------------------------------------- Net increase in net assets resulting from operations ...................... 239,559,266 198,590,895 --------------------------------------- =================================================================================================================================== Capital Transactions - ----------------------------------------------------------------------------------------------------------------------------------- Proceeds from contributions ............................................... 828,648,213 831,921,820 Fair value of withdrawals ................................................. (226,918,648) (305,014,008) --------------------------------------- Net increase in net assets derived from capital transactions .............. 601,729,565 526,907,812 --------------------------------------- =================================================================================================================================== Net Assets - ----------------------------------------------------------------------------------------------------------------------------------- Total increase in net assets .............................................. 841,288,831 725,498,707 Beginning of period ....................................................... 1,535,988,062 810,489,355 --------------------------------------- End of period ............................................................. $ 2,377,276,893 $ 1,535,988,062 ======================================= See Notes to Financial Statements. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 49 Financial Highlights Master Large Cap Series Trust Master Large Cap Core Portfolio -------------------------------------------------------------------------- For the Six Months Ended For the Year Ended October 31, The following ratios have been derived April 30, --------------------------------------------------------- from information provided in the financial statements 2006 2005 2004 2003 2002 ==================================================================================================================================== Total Investment Return - ------------------------------------------------------------------------------------------------------------------------------------ Total investment return ..................... 14.35%+ 18.35% 9.61% 25.11% (8.13%) ========================================================================= ==================================================================================================================================== Ratios to Average Net Assets - ------------------------------------------------------------------------------------------------------------------------------------ Expenses .................................... .50%* .51% .52% .54% .57% ========================================================================= Investment income--net ...................... .53%* .72% .57% .48% .83% ========================================================================= ==================================================================================================================================== Supplemental Data - ------------------------------------------------------------------------------------------------------------------------------------ Net assets, end of period (in thousands) .... $3,492,165 $2,666,699 $1,831,300 $1,454,109 $ 873,704 ========================================================================= Portfolio turnover .......................... 38.13% 93.95% 135.48% 138.73% 150.18% ========================================================================= * Annualized. + Aggregate total investment return. See Notes to Financial Statements. 50 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Master Large Cap Growth Portfolio Master Large Cap Value Portfolio - --------------------------------------------------------------- ----------------------------------------------------------------- For the Six For the Six Months Ended For the Year Ended October 31, Months Ended For the Year Ended October 31, April 30, ------------------------------------------------- April 30, --------------------------------------------------- 2006 2005 2004 2003 2002 2006 2005 2004 2003 2002 ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ 14.34%+ 12.47% 5.42% 25.01% (13.56%) 13.92%+ 21.93% 14.57% 27.05% (3.40%) ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ .56%* .57% .59% .61% .67% .53%* .55% .56% .57% .60% ==================================================================================================================================== .22%* .33% .09% .04% (.01%) .77%* .80% .93% .97% 1.17% ==================================================================================================================================== ==================================================================================================================================== - ------------------------------------------------------------------------------------------------------------------------------------ $ 686,633 $ 489,398 $ 344,400 $ 250,166 $ 185,676 $2,377,277 $1,535,988 $ 810,489 $ 515,257 $ 386,918 ==================================================================================================================================== 51.87% 131.79% 164.94% 178.11% 177.46% 27.97% 94.95% 127.59% 157.04% 136.92% ==================================================================================================================================== MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 51 Notes to Financial Statements Master Large Cap Series Trust 1. Significant Accounting Policies: Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio (the "Portfolios" or individually as the "Portfolio") constitute the Master Large Cap Series Trust (the "Trust"). The Trust 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 Portfolio, subject to certain limitations. The Portfolios' financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to present a fair statement of the results for the interim period. All such adjustments are of a normal, recurring nature. The following is a summary of significant accounting policies followed by the Portfolio. (a) Valuation of investments -- Equity securities that are held by each Portfolio that 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 over-the-counter ("OTC") market, Nasdaq Small Cap or Bulletin Board are valued at the last available bid price or yield equivalent 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. Options written are valued at the last sale price in the case of exchange-traded options or, in the case of options traded in the OTC market, the last asked price. Options purchased are valued at their last sale price in the case of exchange-traded options or, in the case of options traded in the OTC market, the last bid price. Swap agreements are valued based upon quoted fair valuations received daily by the Portfolios from a pricing service or counterparty. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their last sale price as of the close of such exchanges. Obligations with remaining maturities of 60 days or less are valued at amortized cost unless the Investment Adviser believes that this method no longer produces fair valuations. 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. Each Portfolio employs pricing services to provide certain securities prices for the Portfolio. Securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Board of Trustees of the Trust, including valuations furnished by the pricing services retained by each Portfolio, which may use a matrix system for valuations. The procedures of a pricing service and its valuations are reviewed by the officers of the Trust under the general supervision of the Trust's Board of Trustees. Such valuations and procedures will be reviewed periodically by the Board of Trustees of the Trust. Generally, trading in foreign securities, as well as U.S. government securities, money market instruments, and certain fixed income 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 each Portfolio are determined as of such times. Foreign currency exchange rates also are generally determined prior to 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 each 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. (b) Derivative financial instruments -- Each Portfolio may engage in various portfolio investment strategies both to increase the return of the 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. 52 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Notes to Financial Statements (continued) Master Large Cap Series Trust o Financial futures contracts -- Each Portfolio may purchase or sell financial futures contracts and options on such futures contracts. Futures contracts are contracts for delayed delivery of securities at a specific date and at a specific price or yield. Upon entering into a contract, the 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 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 Portfolio as unrealized gains or losses. When the contract is closed, the 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. o Options -- Each Portfolio may purchase and write call and put options. When the Portfolio writes an option, an amount equal to the premium received by the 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 Portfolio enters into a closing transaction), the 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. (c) Income taxes -- Master Large Cap Core Portfolio is classified as a partnership for federal income tax purposes. Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio are considered as a "pass-through" entity for federal income tax purposes. As such, each investor in the Portfolio is treated as owner of its proportionate share of the net assets, income, expenses and realized and unrealized gains and losses of the Portfolio. Therefore, no federal income tax provision is required. It is intended that the Portfolio's assets will be managed so an investor in the Portfolio can satisfy the requirements of subchapter M of the Internal Revenue Code. (d) 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 Portfolio has determined the ex-dividend date. Interest income is recognized on the accrual basis. (e) Securities lending -- Each 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 Portfolio and any additional required collateral is delivered to the Portfolio on the next business day. Where the Portfolio receives securities as collateral for the loaned securities, it receives a fee from the borrower. The Portfolio typically receives the income on the loaned securities, but does not receive the income on the collateral. Where the 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 Portfolio may pay reasonable finders, 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 Portfolio could experience delays and costs in gaining access to the collateral. The 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. (f) Bank overdraft -- The Master Large Cap Growth Portfolio recorded a bank overdraft, which resulted from management estimates of available cash. 2. Investment Advisory Agreement and Transactions with Affiliates: The Trust has entered into an Investment Advisory Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. FAM is responsible for the management of each Portfolio's investments and provides the necessary personnel, facilities, MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 53 Notes to Financial Statements (concluded) Master Large Cap Series Trust equipment and certain other services necessary to the operations of the Portfolio. For such services the Master Large Cap Core Portfolio pays a monthly fee at an annual rate of .50% of the average daily value of the Portfolio's net assets not exceeding $1 billion and .45% of average daily net assets in excess of $1 billion. Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio each pay a monthly fee at an annual rate of .50% of the average daily value of the Portfolio's net assets. 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 Portfolio. There is no increase in the aggregate fees paid by the Portfolio for these services. The Portfolios have 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 April 30, 2006, the Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio lent securities with values of $165,074,417, $47,535,355 and $167,018,356, respectively, to MLPF&S or its affiliates. Pursuant to that order, the Portfolios also have 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 Portfolios, invest cash collateral received by the Portfolios for such loans, among other things, in a private investment company managed by MLIM, LLC or in registered money market Portfolios advised by Merrill Lynch Investment Managers, L.P. ("MLIM"), an affiliate of FAM. For the six months ended April 30, 2006, MLIM, LLC received $69,922, $11,904 and $41,056 in securities lending agent fees for Master Large Cap Core Portfolio, Master Large Cap Growth Portfolio and Master Large Cap Value Portfolio, respectively. For the six months ended April 30, 2006, the Portfolios reimbursed FAM for certain accounting services as follows: - -------------------------------------------------------------------------------- Reimbursement - -------------------------------------------------------------------------------- Master Large Cap Core Portfolio ............................ $30,607 Master Large Cap Growth Portfolio .......................... $ 6,044 Master Large Cap Value Portfolio ........................... $17,257 - -------------------------------------------------------------------------------- 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. In February 2006, ML & Co. and BlackRock, Inc. entered into an agreement to contribute ML & Co.'s investment management business, including FAM and MLIM, to the investment management business of BlackRock, Inc. The transaction is expected to close in the third quarter of 2006. 3. Investments: Purchases and sales of investments, excluding short-term securities, for the six months ended April 30, 2006 were as follows: - -------------------------------------------------------------------------------- Total Purchases Total Sales - -------------------------------------------------------------------------------- Master Large Cap Core Portfolio ........ $1,610,140,296 $1,178,257,849 Master Large Cap Growth Portfolio ...... $ 429,747,004 $ 304,702,784 Master Large Cap Value Portfolio ....... $1,141,934,865 $ 537,860,194 - -------------------------------------------------------------------------------- 4. Short-Term Borrowings: Each Portfolio, along with certain other funds managed by FAM and its affiliates, is party to a $500,000,000 credit agreement with a group of lenders. The Portfolio may borrow under the credit agreement to fund shareholder redemptions and for other lawful purposes other than for leverage. The Portfolio may borrow up to the maximum amount allowable under the Portfolio's current prospectus and statement of additional information, subject to various other legal, regulatory or contractual limits. The Portfolio pays a commitment fee of ..07% per annum based on the 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 Portfolio's election, the federal funds rate plus ..50% or a base rate as defined in the credit agreement. None of the Portfolios borrowed under the credit agreement during the six months ended April 30, 2006. On November 23, 2005, the credit agreement was renewed for one year under substantially the same terms. 5. Subsequent Event: Effective May 9, 2006, FAM has contractually agreed to implement an additional breakpoint for a portion of its investment advisory fee. For such services, Master Large Cap Core Portfolio pays a monthly fee at an annual rate of .50% of the average daily net assets not exceeding $1 billion, .45% of average daily net assets in excess of $1 billion but not exceeding $5 billion and .40% of average daily net assets in excess of $5 billion; Master Large Cap Growth Portfolio pays a monthly fee at an annual rate of .50% of the average daily net assets not exceeding $5 billion and .45% of average daily net assets in excess of $5 billion; and Master Large Cap Value Portfolio pays a monthly fee at an annual rate of .50% of the average daily net assets not exceeding $3 billion and .45% of average daily net assets in excess of $3 billion. 54 MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 Officers and Directors/Trustees Robert C. Doll, Jr., President, Director/Trustee and Portfolio Manager James H. Bodurtha, Director/Trustee Kenneth A. Froot, Director/Trustee Joe Grills, Director/Trustee Herbert I. London, Director/Trustee Roberta Cooper Ramo, Director/Trustee Robert S. Salomon, Jr., Director/Trustee Donald C. Burke, Vice President and Treasurer Jeffrey Hiller, Chief Compliance Officer Alice A. Pellegrino, Secretary Custodian Brown Brothers Harriman & Co. 40 Water Street Boston, MA 02109-3661 Transfer Agent Financial Data Services, Inc. 4800 Deer Lake Drive East Jacksonville, FL 32246-6484 800-637-3863 - -------------------------------------------------------------------------------- Effective January 1, 2006, Stephen B. Swensrud retired as Director/Trustee of Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series Trust. The Fund's/Trust's Board of Directors/Trustees wishes Mr. Swensrud well in his retirement. - -------------------------------------------------------------------------------- Availability of Quarterly Schedule of Investments The Funds file their complete schedules of portfolio holdings with the Securities and Exchange Commission ("SEC") for the first and third quarters of each fiscal year on Form N-Q. The Funds' Forms N-Q are available on the SEC's Web site at http://www.sec.gov. The Funds' Forms N-Q may also be reviewed and copied at the SEC's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. Electronic Delivery The Funds offer electronic delivery of communications to their shareholders. In order to receive this service, you must register your account and provide us with e-mail information. To sign up for this service, simply access this Web site at http://www.icsdelivery.com/live and follow the instructions. When you visit this site, you will obtain a personal identification number (PIN). You will need this PIN should you wish to update your e-mail address, choose to discontinue this service and/or make any other changes to the service. This service is not available for certain retirement accounts at this time. MERRILL LYNCH LARGE CAP SERIES FUNDS, INC. APRIL 30, 2006 55 [LOGO] Merrill Lynch Investment Managers www.mlim.ml.com - -------------------------------------------------------------------------------- Mercury Advisors A Division of Merrill Lynch Investment Managers www.mercury.ml.com This report is not authorized for use as an offer of sale or a solicitation of an offer to buy shares of the Funds unless accompanied or preceded by the Funds' 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 Funds use to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling toll-free 1-800-637-3863; (2) at www.mutualfunds.ml.com; and (3) on the Securities and Exchange Commission's Web site at http://www.sec.gov. Information about how each Fund voted proxies relating to securities held in the Funds' portfolios during the most recent 12-month period ended June 30 is available (1) at www.mutualfunds.ml.com and (2) on the Securities and Exchange Commission's Web site at http://www.sec.gov. Merrill Lynch Large Cap Series Funds, Inc. Box 9011 Princeton, NJ 08543-9011 #CAPSERIES -- 4/06 Item 2 - Code of Ethics - Not Applicable to this semi-annual report Item 3 - Audit Committee Financial Expert - Not Applicable to this semi-annual report Item 4 - Principal Accountant Fees and Services - Not Applicable to this semi-annual report Item 5 - Audit Committee of Listed Registrants - Not Applicable 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 - Not Applicable Item 11 - Controls and Procedures 11(a) - The registrant's certifying officers have reasonably designed such disclosure controls and procedures to ensure material information relating to the registrant is made known to us by others particularly during the period in which this report is being prepared. The registrant's certifying officers have determined that the registrant's disclosure controls and procedures are effective based on our evaluation of these controls and procedures as of a date within 90 days prior to the filing date of this report. 11(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the last fiscal half-year of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 12 - Exhibits attached hereto 12(a)(1) - Code of Ethics - Not Applicable to this semi-annual report 12(a)(2) - Certifications - Attached hereto 12(a)(3) - Not Applicable 12(b) - Certifications - Attached hereto Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series Trust By: /s/ Robert C. Doll, Jr. --------------------------- Robert C. Doll, Jr., Chief Executive Officer of Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series Trust Date: June 22, 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 Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series Trust Date: June 22, 2006 By: /s/ Donald C. Burke --------------------------- Donald C. Burke, Chief Financial Officer of Merrill Lynch Large Cap Series Fund, Inc. and Master Large Cap Series Trust Date: June 22, 2006