UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811-9098 AMERICAN BEACON MASTER TRUST (Exact name of registrant as specified in charter) 4151 Amon Carter Boulevard, MD 2450 Fort Worth, Texas 76155 (Address of principal executive offices)-(Zip code) DOUGLAS G. HERRING, PRESIDENT 4151 Amon Carter Boulevard, MD 2450 Fort Worth, Texas 76155 (Name and address of agent for service) Registrant's telephone number, including area code: (817) 967-3509 Date of fiscal year end: December 31, 2007 Date of reporting period: December 31, 2007 ITEM 1. REPORT TO STOCKHOLDERS. GUIDANCE | VISION | EXPERIENCE (AMERICAN BEACON FUNDS(SM) LOGO) Annual Report December 31, 2007 MONEY MARKET FUND U.S. GOVERNMENT MONEY MARKET FUND ABOUT AMERICAN BEACON ADVISORS Since 1986, American Beacon Advisors has offered a variety of products and investment advisory services to numerous institutional and retail clients, including a variety of mutual funds, corporate cash management, and separate account management. Our clients include defined benefit plans, defined contribution plans, foundations, endowments, corporations, financial planners, and other institutional investors. With American Beacon Advisors, you can put the experience of a multi-billion dollar asset management firm to work for your company. CONTENTS President's Message............................................... 1 Financial Highlights Money Market Fund.............................................. 17 U.S. Government Money Market Fund.............................. 21 Schedule of Investments Money Market Portfolio......................................... 24 U.S. Government Money Market Portfolio......................... 28 Additional Information............................................ Back Cover Any opinions herein, including forecasts, reflect our judgment as of the end of the reporting period and are subject to change. Each advisor's strategies and each Fund's portfolio composition will change depending on economic and market conditions. This report is not a complete analysis of market conditions and therefore, should not be relied upon as investment advice. Although economic and market information has been compiled from reliable sources, American Beacon Advisors, Inc. makes no representation as to the completeness or accuracy of the statements contained herein. December 31, 2007 American Beacon Funds (PHOTO OF DOUGLAS G. HERRING) Fellow Shareholders, I am pleased to present to you the American Beacon Money Market Funds Annual Report for the twelve months ended December 31, 2007. Please review the enclosed material carefully, as it includes important information about the Funds. Renewed volatility affected the fixed income markets during the second half of the year. The change in the investment environment was led by a crisis in the housing sector, due to several years of lax lending standards, which then spilled over into the financial sector during the summer months. By design, American Beacon's conservative credit review process allowed us to avoid many of the pitfalls of the more toxic asset classes. Even with this conservative approach, both the Institutional Class and Cash Management Class of the American Beacon Money Market Fund posted one-year returns of 5.24% and 5.28%, outperforming the Lipper Institutional Money Market Average by 26 basis points (0.26%) and 30 basis points (0.30%), respectively. The American Beacon U.S. Government Money Market Fund - Cash Management Class also outperformed its benchmark, with a one-year total return of 5.13% versus the Lipper Institutional U.S. Government Money Market Average of 4.86%. The turmoil in the U.S. credit markets continued after the close of the Funds' fiscal year and is likely to continue over the shorter term. However, we believe the Funds' fundamental investment philosophy, proven credit selection process and lower than average expense ratio will continue to serve the Funds well over the longer term. As always, we appreciate the opportunity to serve your financial needs. To obtain further details about the American Beacon Funds family or to access your account information, please visit our website at www.americanbeaconfunds.com. Thank you for your continued confidence in the American Beacon Money Market Funds. Sincerely, /s/ Douglas G. Herring Douglas G. Herring President American Beacon Funds 1 PERFORMANCE OVERVIEW AMERICAN BEACON MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) The year of 2007 began with a slowdown in U.S. growth occurring following Federal Reserve Board ("Fed") credit tightening, rising oil prices, and the beginning of concerns around credit and slowing U.S. consumer spending. Earnings growth remained strong on the back of strong export growth, a declining dollar and share buybacks. A transition in leadership from small, value and domestic to large, growth and multinational became evident as the year began. During the second half of the year, the benign fundamentals of 2003-2006--namely strong global growth, rising profitability levels and falling risk premiums--were replaced by credit stress, pressures on the capital position of the financial system, questions about the sustainability of the business cycle, and rising energy and food prices. Reflecting these woes, market prices moved considerably. U.S. Government bond yields plummeted, the dollar fell faster than in earlier years, credit spreads widened and equities turned volatile. The financials and consumer discretionary sectors experienced drops of one-quarter to one-third. Commodity and industrial related multinational companies performed best. In 2007, the Fed moved from an attitude of vigilance about inflation to one of providing liquidity and lowering rates to shore up the functioning of credit markets and fight economic weakness. During the year, the Fed lowered the target federal funds rate by 100 basis points (1.00%), bringing the target rate from 5.25% to 4.25%. In a statement issued following its meeting on December 11, 2007, the Federal Open Market Committee ("FOMC") noted: "Incoming information suggests that economic growth is slowing, reflecting the intensification of the housing correction and some softening in business and consumer spending. Moreover, strains in financial markets have increased in recent weeks." The FOMC also stated its opinion that the rate reduction "combined with the [monetary] policy actions taken earlier, should help promote moderate growth over time." In a cautionary note, however, the FOMC indicated that "[r]eadings on core inflation have improved modestly this year, but elevated energy and commodity prices, among other factors, may put upward pressure on inflation. In this context, the Committee judges that some inflation risks remain, and it will continue to monitor inflation developments carefully." The most recent data from the U.S. Department of Labor's Bureau of Labor Statistics indicated that the U.S. unemployment rate rose to 5.0% in December after holding steady at 4.7% in each of the previous three months. Non-farm payroll employment posted a small increase of 18,000 for the month, and total employment, at 146.2 million, was down following an increase in November. Job declines in manufacturing and construction largely offset job growth in several service industries. The Consumer Price Index ("CPI") increased at a seasonally-adjusted rate of 0.8% in November 2007, according to the Department of Labor, its largest advance since a 1.2% rise in September 2005. The index for energy was up 5.7%, led by a 9.5% rise in petroleum-based energy prices. The index for all items less food and energy increased 0.3% in November, following advances of 0.2% in each of the preceding five months. The overall CPI rose at an unadjusted rate of 2.3% over the previous 12 months. The U.S. gross domestic product ("GDP") grew at an annualized rate of 4.9% in the third quarter of 2007 up significantly from the 3.8% annualized growth rate for the second quarter of the year. According to the U.S. Department of Commerce, the increase in real GDP during the quarter resulted from positive contributions from exports, personal consumption expenditures, private inventory investment, nonresidential structures, federal government spending, equipment and software, and state and local government spending. A decrease in residential fixed investment (purchases of private residential structures and residential equipment that landlords rent to tenants) had a negative effect on the GDP. Additionally, there was an increase in imports, which are a subtraction in the calculation of the GDP. 2 PERFORMANCE OVERVIEW AMERICAN BEACON MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) As the economy began to show signs of weakening during the year, the Federal Reserve ("Fed") started its series of easing monetary policy in September. Since then the Fed has reduced the fed funds rate at each Federal Open Market Committee ("FOMC") meeting, resulting in a 4.25% fed funds rate by year end. These were moves of 50 basis points (0.50%) for the September FOMC meeting followed by 25 basis points (0.25%) at each of the remaining two meetings of the year. In response to the events that caused the Fed to ease, the American Beacon Money Market Fund's weighted-average maturity was maintained around 30 days towards the end of the year. The primary strategy of the Fund for the year was to buy variable-rate securities, short-dated commercial paper and overnight investments. The strategies implemented during the year enabled the Fund to outperform its Lipper peer group. For the twelve months ended December 31, 2007, the total return of the Cash Management Class of the American Beacon Money Market Fund was 5.28%. The Fund outperformed the Lipper Institutional Money Market Average return of 4.98% by 30 basis points (0.30%). Based on annualized total returns, Lipper Inc. ranked the Cash Management Class of the Fund 41 among 382, 25 among 321 and 19 among 264 Institutional Money Market Funds for the one-year, three-year, and five-year periods ended December 31, 2007, respectively. (BAR CHART) ANNUALIZED TOTAL RETURNS AS OF 12/31/2007 --------------------------- 1 YEAR 5 YEARS 10 YEARS ------ ------- -------- Cash Mgmt Class(1, 2, 5)......... 5.28% 3.17% 3.88% Institutional Class (1, 3, 5).... 5.24% 3.08% 3.83% PlanAhead Class (1, 5)........... 4.94% 2.80% 3.54% BBH Comset Class (1, 4, 5)....... 5.28% 3.17% 3.88% 1. Performance shown is historical and may not be indicative of future returns. Investment returns will vary, and shares may be worth more or less at redemption than at original purchase. An investment in this Fund is neither insured nor guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of an investment at $1.00 per share it is possible to lose money by investing in the Fund. Fund performance in the table above does not reflect the deduction of taxes a shareholder would pay on distributions or the redemption of shares. 2. Fund performance for the five and ten-year periods represents the total returns achieved by the Institutional Class from 1/1/98 to 12/1/01, the inception date of the Cash Management Class, and the returns of the Cash Management Class thereafter. Expenses of the Cash Management Class are lower than those of the Institutional Class. Therefore, total returns shown are lower than they would have been had the Cash Management Class been in place since 1/1/98. A portion of the fees charged to the Cash Management Class of the Fund has been waived. Performance prior to waiving fees was lower than the actual returns shown. 3. A portion of the fees charged to the Institutional Class of the Fund has been waived since 2006. Performance prior to waiving fees was lower than the actual returns shown for periods since 2006. 4. Fund performance represents the total returns achieved by the Institutional Class from 1/1/98 to 12/1/01, the total returns achieved by the Cash Management Class from 12/1/01 up to 4/2/07, the inception date of the BBH Comset Class, and the returns of the BBH Comset Class thereafter. Expenses of the BBH Comset Class are lower than those of the Institutional and Cash Management Classes through 12/31/03. Therefore, total returns shown through 12/31/03 are lower than they would have been had the BBH Comset Class been in place during that period. Expenses of the BBH Comset Class have been the same as those of the Cash Management Class since 1/1/04. 5. The total annual Fund operating expense ratio set forth in the most recent Fund prospectus for the Cash Management, Institutional, PlanAhead and the BBH Comset Class shares was 0.20%, 0.23%, 0.49% and 0.19%, respectively. After expense reimbursement, the net expense ratio set forth in the most recent Fund prospectus for the Cash Management, Institutional and BBH Comset Class shares was 0.15%, 0.18% and 0.15%, respectively. The expense ratios above may vary from the expense ratios presented in other sections of this report that are based on expenses incurred during the period covered by this report. 3 PERFORMANCE OVERVIEW AMERICAN BEACON MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) PORTFOLIO STATISTICS AS OF DECEMBER 31, 2007 CASH BBH MANAGEMENT INSTITUTIONAL PLANAHEAD COMSET CLASS CLASS CLASS CLASS ---------- ------------- --------- ------- 7-day Current Yield* 4.78% 4.75% 4.47% 4.78% 7-day Effective Yield* 4.89% 4.86% 4.57% 4.89% 30-day Yield* 4.78% 4.75% 4.47% 4.78% Weighted Avg. Maturity 26 Days 26 Days 26 Days 26 Days Moody's Rating Aaa N/A N/A Aaa S&P Rating AAAm N/A N/A AAAm * Annualized. You may call 1-800-388-3344 to obtain the Fund's current seven day yield. Yield is a more accurate reflection of the Fund's current earnings than total returns. TOP TEN ISSUERS AS OF DECEMBER 31, 2007 % OF NET ASSETS** ------------ General Electric Capital Corp. 5.8% Royal Bank of Scotland plc 4.8% Bank of America 4.5% Deutsche Bank 4.5% Goldman Sachs 4.5% Lehman Brothers 4.5% Barclays Capital, Inc. 4.5% Citigroup 4.5% Societe Generale NA, Inc. 4.2% BNP Paribas 3.4% ** Percent of net assets of American Beacon Master Money Market Portfolio. ASSET ALLOCATION AS OF DECEMBER 31, 2007 % OF NET ASSETS** ------------ Corporate Notes 30.0% Bank CDs, TDs and Notes 22.2% Repurchase Agreements 19.4% Commercial Paper 18.4% S/T Investments 9.6% Liabilities, Net of Other Assets 0.4% ** Percent of net assets of American Beacon Master Money Market Portfolio. 4 PERFORMANCE OVERVIEW AMERICAN BEACON MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) FUND EXPENSE EXAMPLE As a shareholder of the Fund, you incur two types of costs: (1) transaction costs and (2) ongoing costs, including management fees, administrative service fees, and other Fund expenses. The examples below are intended to help you understand the ongoing cost (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The examples are based on an investment of $1,000 invested at the beginning of the period and held for the entire period from July 1, 2007 through December 31, 2007. ACTUAL EXPENSES The "Actual" lines of the table provide information about actual account values and actual expenses. You may use the information in these lines, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the "Actual" line under the heading "Expenses Paid During Period" for the applicable Class to estimate the expenses you paid on your account during this period. Shareholders of the PlanAhead Class that invest in the Fund through an IRA may be subject to a custodial IRA fee of $12 that is typically deducted each December. If your account was subject to a custodial IRA fee during the period, your costs would have been $12 higher. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The "Hypothetical" lines of the table provide information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed 5% per year rate of return before expenses (not the Fund's actual return). You may compare the ongoing costs of investing in the Fund with other funds by contrasting this 5% hypothetical example and the 5% hypothetical examples that appear in the shareholder reports of the other funds. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. Shareholders of the PlanAhead Class that invest in the Fund through an IRA may be subject to a custodial IRA fee of $12 that is typically deducted each December. If your account was subject to a custodial IRA fee during the period, your costs would have been $12 higher. You should also be aware that the expenses shown in the table highlight only your ongoing costs and do not reflect any transaction costs charged by the Fund. Similarly, the expense examples for other funds do not reflect any transaction costs charged by those funds, such as sales charges (loads), redemption fees or exchange fees. Therefore, the "Hypothetical" lines of the table are useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. If you were subject to any transaction costs during the period, your costs would have been higher. Beginning Ending Account Account Expenses Paid Value Value During Period* 7/1/07 12/31/07 7/1/07-12/31/07 --------- --------- --------------- CASH MANAGEMENT CLASS Actual..................................... $1,000.00 $1,025.92 $0.77 Hypothetical (5% return before expenses)... $1,000.00 $1,024.45 $0.77 INSTITUTIONAL CLASS Actual..................................... $1,000.00 $1,025.75 $0.87 Hypothetical (5% return before expenses)... $1,000.00 $1,024.35 $0.87 PLANAHEAD CLASS Actual..................................... $1,000.00 $1,024.18 $2.50 Hypothetical (5% return before expenses)... $1,000.00 $1,022.74 $2.50 BBH COMSET CLASS Actual..................................... $1,000.00 $1,025.92 $0.77 Hypothetical (5% return before expenses)... $1,000.00 $1,024.45 $0.77 * Expenses are equal to the Fund's annualized expense ratios for the six-month period of 0.15%, 0.17%, 0.49% and 0.15% for the Cash Management, Institutional, PlanAhead, and BBHComSet Classes respectively, multiplied by the average account value over the period, multiplied by the number derived by dividing the number of days in the most recent fiscal half-year (184) by days in the year (365) to reflect the half-year period . 5 PERFORMANCE OVERVIEW AMERICAN BEACON U.S. GOVERNMENT MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) As the economy began to show signs of weakening during the year, the Federal Reserve ("Fed") started its series of easing monetary policy in September. Since then the Fed has reduced the fed funds rate at each Federal Open Market Committee ("FOMC") meeting, resulting in a 4.25% fed funds rate by year end. These were moves of 50 basis points (0.50%) for the September FOMC meeting followed by 25 basis points (0.25%) at each of the remaining two meetings of the year. In response to the events that caused the Fed to ease, the American Beacon U.S. Government Money Market Fund's weighted-average maturity was maintained around 10 days towards the end of the year. The primary strategy of the Fund for the year was to buy variable-rate securities, short-dated fixed-rate securities and overnight investments. The strategies implemented during the year enabled the Fund to outperform its Lipper peer group. For the twelve months ended December 31, 2007, the total return of the Cash Management Class of the American Beacon U.S. Government Money Market Fund was 5.13%. The Fund outperformed the Lipper Institutional U.S. Government Money Market Average return of 4.86% by 27 basis points (0.27%). Based on annualized total returns, Lipper Inc. ranked the Cash Management Class of the Fund 8 among 163, 7 among 111 and 7 among 76 Institutional U.S. Government Money Market Funds for the one-year, five-year, and ten-year periods ended December 31, 2007, respectively. (BAR CHART) ANNUALIZED TOTAL RETURNS AS OF 12/31/2007 --------------------------- 1 YEAR 5 YEARS 10 YEARS ------ ------- -------- Cash Management Class (1, 2, 4).. 5.13% 3.08% 3.79% PlanAhead Class (1, 3, 4)........ 4.65% 2.65% 3.39% 1 Performance shown is historical and may not be indicative of future returns. Investment returns will vary, and shares may be worth more or less at redemption than at original purchase. An investment in this Fund is neither insured nor guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of an investment at $1.00 per share it is possible to lose money by investing in the Fund. Fund performance in the table above does not reflect the deduction of taxes a shareholder would pay on distributions or the redemption of shares. 2 Prior to December 1, 2001, the Cash Management Class of the Fund was known as the Institutional Class. A portion of the fees charged to the Cash Management Class of the Fund has been waived since 2002. Performance prior to waiving fees was lower than actual returns shown for periods since 2002. 3 A portion of the fees charged to the PlanAhead Class of the Fund has been waived since 2003. Performance prior to waiving fees was lower than the actual returns shown for periods since 2003. 4 The total annual Fund operating expense ratio set forth in the most recent Fund prospectus for the Cash Management and the PlanAhead Class shares was 0.64% and 1.02%, respectively. After expense reimbursement, the net expense ratio set forth in the most recent Fund prospectus for the Cash Management and PlanAhead shares was 0.15% and 0.63%, respectively. The expense ratios above may vary from the expense ratios presented in other sections of this report that are based on expenses incurred during the period covered by this report. PORTFOLIO STATISTICS AS OF DECEMBER 31, 2007 CASH MANAGEMENT CLASS PLANAHEAD CLASS --------------------- --------------- 7-day Current Yield* 4.43% 4.06% 7-day Effective Yield* 4.53% 4.14% 30-day Yield* 4.41% 4.03% Weighted Avg. Maturity 11 Days 11 Days Moody's Rating Aaa N/A S&P Rating AAAm N/A * Annualized. You may call 1-800-388-3344 to obtain the Fund's current seven day yield. Yield is a more accurate reflection of the Fund's current earnings than total returns. 6 PERFORMANCE OVERVIEW AMERICAN BEACON U.S. GOVERNMENT MONEY MARKET FUND(SM) DECEMBER 31, 2007 (UNAUDITED) ASSET ALLOCATION AS OF DECEMBER 31, 2007 % OF NET ASSETS** ------------ Repurchase Agreements 81.0% Government Securities 18.9% Net Other Assets 0.1% ** Percent of net assets of the American Beacon Master U.S. Government Money Market Portfolio. FUND EXPENSE EXAMPLE As a shareholder of the Fund, you incur two types of costs: (1) transaction costs and (2) ongoing costs, including management fees, administrative service fees, and other Fund expenses. The examples below are intended to help you understand the ongoing cost (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The examples are based on an investment of $1,000 invested at the beginning of the period and held for the entire period from July 1, 2007 through December 31, 2007. ACTUAL EXPENSES The "Actual" lines of the table provide information about actual account values and actual expenses. You may use the information in these lines, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the "Actual" line under the heading "Expenses Paid During Period" for the applicable Class to estimate the expenses you paid on your account during this period. Shareholders of the PlanAhead Class that invest in the Fund through an IRA may be subject to a custodial IRA fee of $12 that is typically deducted each December. If your account was subject to a custodial IRA fee during the period, your costs would have been $12 higher. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The "Hypothetical" lines of the table provide information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed 5% per year rate of return before expenses (not the Fund's actual return). You may compare the ongoing costs of investing in the Fund with other funds by contrasting this 5% hypothetical example and the 5% hypothetical examples that appear in the shareholder reports of the other funds. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. Shareholders of the PlanAhead Class that invest in the Fund through an IRA may be subject to a custodial IRA fee of $12 that is typically deducted each December. If your account was subject to a custodial IRA fee during the period, your costs would have been $12 higher. You should also be aware that the expenses shown in the table highlight only your ongoing costs and do not reflect any transaction costs charged by the Fund. Similarly, the expense examples for other funds do not reflect any transaction costs charged by those funds, such as sales charges (loads), redemption fees or exchange fees. Therefore, the "Hypothetical" lines of the table are useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. If you were subject to any transaction costs during the period, your costs would have been higher. Beginning Ending Account Account Expenses Paid Value Value During Period* 7/1/07 12/31/07 7/1/07-12/31/07 --------- --------- --------------- CASH MANAGEMENT CLASS Actual..................................... $1,000.00 $1,024.73 $0.77 Hypothetical (5% return before expenses)... $1,000.00 $1,024.45 $0.77 PLANAHEAD CLASS Actual..................................... $1,000.00 $1,022.51 $2.96 Hypothetical (5% return before expenses)... $1,000.00 $1,022.28 $2.96 * Expenses are equal to the Fund's annualized expense ratios for the six-month period of 0.15% and 0.58% for the Cash Management and PlanAhead Classes respectively, multiplied by the average account value over the period, multiplied by the number derived by dividing the number of days in the most recent fiscal half-year (184) by days in the year (365) to reflect the half-year period. 7 AMERICAN BEACON FUNDS REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and the Board of Trustees of American Beacon Funds: We have audited the accompanying statements of assets and liabilities of American Beacon Funds, comprised of the American Beacon Money Market Fund and the American Beacon U.S. Government Money Market Fund (collectively, the "Funds") as of December 31, 2007, and the related statements of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Funds' management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Funds' internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Funds' internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of American Beacon Funds as of December 31, 2007, the results of their operations for the year then ended, the changes in their net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Dallas, Texas February 27, 2008 8 AMERICAN BEACON FUNDS STATEMENTS OF ASSETS AND LIABILITIES DECEMBER 31, 2007 (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS) U.S. GOVERNMENT MONEY MARKET MONEY MARKET -------------- --------------- ASSETS: Investment in Portfolio, at value ............................ $ 2,345,276 $ 18,103 Receivable for fund shares sold .............................. 53 -- Receivable from Manager for expense reimbursement (Note 2) ... 117 2 Prepaid expenses ............................................. 23 19 -------------- ----------- TOTAL ASSETS .............................................. 2,345,469 18,124 -------------- ----------- LIABILITIES: Payable for fund shares redeemed ............................. 7 -- Dividends payable ............................................ 6,458 39 Administrative service and service fees payable (Note 2) ..... 172 1 Other liabilities ............................................ 56 23 -------------- ----------- TOTAL LIABILITIES ......................................... 6,693 63 -------------- ----------- NET ASSETS ................................................... $ 2,338,776 $ 18,061 ============== =========== ANALYSIS OF NET ASSETS: Paid-in-capital .............................................. 2,338,776 18,061 -------------- ----------- NET ASSETS ...................................................... $ 2,338,776 $ 18,061 ============== =========== SHARES OUTSTANDING (NO PAR VALUE): Cash Management Class ........................................ 349,248,723 16,432,346 ============== =========== Institutional Class .......................................... 450,661,969 N/A ============== =========== PlanAhead Class .............................................. 112,278,266 1,628,248 ============== =========== BBH ComSet Class ............................................. 1,426,587,073 N/A ============== =========== NET ASSET VALUE, OFFERING AND REDEMPTION PRICE PER SHARE: Cash Management Class ........................................ $ 1.00 $ 1.00 ============== =========== Institutional Class .......................................... $ 1.00 N/A ============== =========== PlanAhead Class .............................................. $ 1.00 $ 1.00 ============== =========== BBH ComSet Class ............................................. $ 1.00 N/A ============== =========== See accompanying notes See accompanying Financial Statements of the American Beacon Master Portfolios 9 AMERICAN BEACON FUNDS STATEMENTS OF OPERATIONS YEAR ENDED DECEMBER 31, 2007 (IN THOUSANDS) U.S. GOVERNMENT MONEY MARKET MONEY MARKET -------------- --------------- INVESTMENT INCOME ALLOCATED FROM PORTFOLIO: Interest income .............................................. $91,208 $ 533 Portfolio expenses ........................................... (1,839) (12) ------- ----- NET INVESTMENT INCOME ALLOCATED FROM PORTFOLIO ............ 89,369 521 ------- ----- FUND EXPENSES: Administrative service fees (Note 2): Cash Management Class ..................................... 442 5 Institutional Class ....................................... 264 -- PlanAhead Class ........................................... 128 2 Platinum Class (Note 1) ................................... 80 10 BBH ComSet Class .......................................... 552 -- Transfer agent fees: Cash Management Class ..................................... 51 1 Institutional Class ....................................... 18 -- PlanAhead Class ........................................... 13 4 Platinum Class (Note 1) ................................... -- 1 BBH ComSet Class .......................................... 5 -- Professional fees ............................................ 29 14 Registration fees and expenses ............................... 114 29 Service fees - PlanAhead Class (Note 2) ...................... 319 5 Distribution fees - Platinum Class (Note 1) .................. 31 4 Prospectus and shareholder reports ........................... 41 -- Other expenses ............................................... 22 5 ------- ----- TOTAL FUND EXPENSES ....................................... 2,109 80 ------- ----- Less waiver and reimbursement of expenses (Note 2) .............. (776) (53) ------- ----- NET FUND EXPENSES ......................................... 1,333 27 ------- ----- NET INVESTMENT INCOME ........................................... 88,036 494 ------- ----- REALIZED GAIN ALLOCATED FROM PORTFOLIO: Net realized gain on investments ............................. 10 -- ------- ----- NET GAIN ON INVESTMENTS ................................... 10 -- ------- ----- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ............ $88,046 $ 494 ------- ----- See accompanying notes See accompanying Financial Statements of the American Beacon Master Portfolios 10 AMERICAN BEACON FUNDS STATEMENTS OF CHANGES IN NET ASSETS DECEMBER 31, 2007 (IN THOUSANDS) MONEY MARKET U.S. GOVERNMENT MONEY MARKET Year Ended December 31, Year Ended December 31, -------------------------- ---------------------------- 2007 2006 2007 2006 ------------ ----------- --------- -------- INCREASE (DECREASE) IN NET ASSETS: OPERATIONS: Net investment income ........................... $ 88,036 $ 36,739 $ 494 $ 607 Net realized gain (loss) on investments ......... 10 1 -- -- ------------ ----------- --------- -------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ................................ 88,046 36,740 494 607 ------------ ----------- --------- -------- DISTRIBUTIONS TO SHAREHOLDERS: Net investment income: Cash Management Class ........................ (32,696) (21,235) (334) (304) Institutional Class .......................... (13,567) (4,754) -- -- PlanAhead Class .............................. (6,183) (9,290) (94) (114) Platinum Class (Note 1) ...................... (543) (1,460) (66) (189) BBH ComSet Class ............................. (35,047) -- -- -- Net realized gain on investments: Cash Management Class ........................ (6) -- -- -- Institutional Class .......................... (3) -- -- -- PlanAhead Class .............................. (1) (1) -- -- Platinum Class (Note 1) ...................... -- -- -- -- BBH ComSet Class ............................. -- -- -- -- ------------ ----------- --------- -------- DISTRIBUTIONS TO SHAREHOLDERS ............. (88,046) (36,740) (494) (607) ------------ ----------- --------- -------- CAPITAL SHARE TRANSACTIONS: Proceeds from sales of shares ................... 11,962,330 5,755,911 145,717 39,131 Reinvestment of dividends and distributions ..... 44,661 32,640 157 225 Cost of shares redeemed ......................... (10,878,697) (5,091,891) (137,451) (58,084) ------------ ----------- --------- -------- NET INCREASE (DECREASE) IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ................ 1,128,294 696,660 8,423 (18,728) ------------ ----------- --------- -------- NET INCREASE (DECREASE) IN NET ASSETS .............. 1,128,294 696,660 8,423 (18,728) ------------ ----------- --------- -------- NET ASSETS: Beginning of period ............................. 1,210,482 513,822 9,638 28,366 ------------ ----------- --------- -------- END OF PERIOD ................................... $ 2,338,776 $ 1,210,482 $ 18,061 $ 9,638 ============ =========== ========= ======== See accompanying notes See accompanying Financial Statements of the American Beacon Master Portfolios 11 AMERICAN BEACON FUNDS NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES American Beacon Funds (the "Trust") is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940 (the "Act"), as amended, as a diversified, no-load, open-end management investment company with separate series. The following series are included in this report: American Beacon Money Market and American Beacon U.S. Government Money Market Funds (each a "Fund" and collectively, the "Funds"). The BBH Comset Class of the Money Market Fund commenced operations on April 2, 2007. The Platinum Class of the Funds was fully liquidated effective May 31, 2007. Each Fund invests all of its investable assets in the corresponding portfolio of the American Beacon Master Trust, an open-end diversified management investment company, as follows: AMERICAN BEACON: (ARROW) invests assets in (ARROW) AMERICAN BEACON MASTER TRUST: - ---------------- ----------------------------- Money Market Fund Money Market Portfolio U.S. Government Money Market Fund U.S. Government Money Market Portfolio Each Fund has the same investment objectives as its corresponding American Beacon Master Trust Portfolio. The value of such investment reflects each Fund's proportionate interest in the net assets of the corresponding portfolio (17.8% and 1.3% at December 31, 2007 of the American Beacon Master Trust Money Market and U.S. Government Money Market Portfolios, respectively) (each a "Portfolio" and collectively the "Portfolios"). The financial statements of the Portfolios are included elsewhere in this report and should be read in conjunction with the Funds' financial statements. American Beacon Advisors, Inc. (the "Manager") is a wholly-owned subsidiary of AMR Corporation and was organized in 1986 to provide business management, advisory, administrative and asset management consulting services to the Trust and other investors. The following is a summary of the significant accounting policies followed by the Funds. Class Disclosure Each Fund has multiple classes of shares designed to meet the needs of different groups of investors. Please note that not all Funds offer all classes. The following table sets forth the differences amongst the classes: CLASS: OFFERED TO: SERVICE AND DISTRIBUTION FEES: - ------ -------------------------------------------------------------- ---------------------------------- CASH MANAGEMENT CLASS Investors making an initial investment of $10 million for Administrative Service Fee - 0.07% Money Market and $2 million for U.S. Government Money Market, or investors investing through an intermediary INSTITUTIONAL CLASS Investors making an initial investment of $2 million Administrative Service Fee - 0.10% PLANAHEAD CLASS General public and investors investing through an intermediary Administrative Service Fee - 0.10% Service Fee - 0.25% BBH COMSET Investors making an initial investment of at least $10 million Administrative Service Fee - 0.08% in BBH ComSet (SM) who meet the eligibility requirements established by Brown Brothers Harriman & Co. Valuation of Investments The Funds record their investment in the Portfolios at fair value. Valuation of securities by the Portfolios is discussed in Note 1 of the Portfolios' Notes to Financial Statements, which are included elsewhere in this report. 12 AMERICAN BEACON FUNDS NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 Investment Income and Dividends to Shareholders Each Fund records its share of net investment income (loss) and realized gain (loss) in the Portfolio each day. All net investment income (loss) and realized gain (loss) of each Portfolio are allocated pro rata among the corresponding Fund and other investors in each Portfolio at the time of such determination. The Funds generally declare dividends daily from net investment income and net short-term capital gain, if any, payable monthly. Dividends to shareholders are determined in accordance with federal income tax principles that may treat certain transactions differently than U.S. generally accepted accounting principles. Allocation of Income, Expenses, Gains and Losses Income, expenses (other than those attributable to a specific class), gains and losses are allocated daily to each class of shares based upon the relative proportion of net assets represented by such class. Operating expenses directly attributable to a specific class are charged against the operations of that class. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results may differ from those estimated. Recently Issued Accounting Pronouncements In September 2006, the FASB issued Statement on Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"). This standard clarifies the definition of fair value for financial reporting, establishes a framework for measuring fair value and requires additional disclosures about the use of fair value measurements. FAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. As of December 31, 2007, the Manager does not believe the adoption of FAS 157 will materially impact the amounts represented in the financial statements; however, additional disclosures will be required about the inputs used to develop the measurements of fair value. Other Under the Trust's organizational documents, its officers and directors are indemnified against certain liability arising out of the performance of their duties to the Trust. In the normal course of business, the Trust enters into contracts that provide indemnification to the other party or parties against potential costs or liabilities. The Trust's maximum exposure under these arrangements is dependent on claims that may be made in the future and, therefore, cannot be estimated. The Trust has had no prior claims or losses pursuant to any such agreement. 2. TRANSACTIONS WITH AFFILIATES Administrative Services Agreement As compensation for providing administrative services to the Funds, the Manager receives an annualized fee of 0.10% of the average daily net assets of each of the Institutional and PlanAhead Classes of the Funds, 0.08% of the average daily net assets of the BBH Class of the Money Market Fund and 0.07% of the Cash Management Class of the Funds. 13 AMERICAN BEACON FUNDS NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 Distribution Plan The Trust has adopted a "defensive" Distribution Plan (the "Plan") in accordance with Rule 12b-1 under the Act, pursuant to which no fees may be charged to the Funds for distribution purposes. However, the Plan authorizes the fees received by the Manager to be used for distribution purposes. Under this plan, the Trust does not intend to compensate the Manager or any other party, either directly or indirectly, for the distribution of Trust shares. Service Agreement The Manager and the Trust entered into a Service Agreement which obligates the Manager to oversee additional shareholder servicing of the PlanAhead Class. As compensation for performing the duties required under the Service Agreement, the Manager receives 0.25% based on the daily net assets of the PlanAhead Class. Reimbursement and Waiver of Expenses The Manager contractually agreed to reimburse the following Funds for distribution and other expenses through February 29, 2008 to the extent total annual fund operating expenses exceed the following amounts: FUND CLASS EXPENSE CAP AMOUNT - ---- ----- ----------- -------- Money Market Fund........................... Institutional 0.18%** $ 97,463 Money Market Fund........................... Cash Management 0.15% 253,808 U.S. Government Money Market Fund........... Cash Management 0.15%* 5,778 U.S. Government Money Market Fund........... PlanAhead 0.65% 1,799 * Prior to March 1, 2007, the expense cap was 0.19%. ** Prior to March 1, 2007, fees were voluntarily waived by the Manager to arrive at expense cap. The Manager voluntarily agreed to reimburse the BBH ComSet Class of the Money Market Fund for other expenses through February 29, 2008 to the extent total annual fund operating expenses exceeded 0.15%. The Manager reimbursed expenses totaling $417,784 to the BBH ComSet Class of the Money Market Fund during the year ended December 31, 2007. Expense Reimbursement Plan The Funds have adopted an Expense Reimbursement Plan whereby the Manager may seek recoupment of fees waived or expenses reimbursed for a period of up to three years. However, recoupment will occur only if the Class' average net assets have grown or expenses have declined sufficiently to allow recoupment without causing its expense ratio to exceed the previously agreed upon expense limit. The table below excludes amounts previously reimbursed to the Platinum Classes of the Funds. The following waived fees or reimbursed expenses are subject to potential recovery expiring in: U.S. GOVERNMENT YEAR MONEY MARKET MONEY MARKET - ---- ------------ --------------- 2008........................................ 293,487 54,846 2009........................................ 260,591 65,678 2010........................................ 769,055 7,577 The Funds have not recorded a liability for this potential reimbursement due to the current assessment that a reimbursement is unlikely. 14 AMERICAN BEACON FUNDS NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 3. FEDERAL INCOME TAXES It is the policy of the Funds to comply with the requirements of Subchapter M of the Internal Revenue Code and to distribute substantially all net investment income as well as any net realized capital gains on the sale of investments. Therefore, no federal income or excise tax provision is required. The Funds adopted the provisions of FASB Interpretation No. 48, "Accounting for Uncertainties in Income Taxes" ("FIN 48"), on January 1, 2007. FIN 48 sets forth a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return. The implementation of FIN 48 did not result in any unrecognized tax benefits in the accompanying financial statements. Each of the tax years in the three year period ended December 31, 2007, remains subject to examination by the Internal Revenue Service. If applicable, the Funds recognize interest accrued related to unrecognized tax benefits in interest expense and penalties in "Other expenses" on the Statements of Operations. Dividends are categorized in accordance with income tax regulations which may treat certain transactions differently than U.S. generally accepted accounting principles. Accordingly, the character of distributions and composition of net assets for tax purposes may differ from those reflected in the accompanying financial statements. The tax character of distributions paid for the years ended December 31, 2007 and December 31, 2006 were as follows (in thousands): MONEY MARKET U.S. GOVERNMENT MONEY MARKET --------------------------- --------------------------- YEAR ENDED YEAR ENDED YEAR ENDED YEAR ENDED DECEMBER 31, DECEMBER 31, DECEMBER 31, DECEMBER 31, 2007 2006 2007 2006 ------------ ------------ ------------ ------------ DISTRIBUTIONS PAID FROM ORDINARY INCOME:* Cash Management Class.................... $32,702 $21,235 $334 $304 Institutional Class...................... 13,570 4,754 -- -- PlanAhead Class.......................... 6,184 9,291 94 114 Platinum Class........................... 543 1,460 66 189 BBH ComSet Class......................... 35,047 -- -- -- ------- ------- ---- ---- TOTAL DISTRIBUTIONS PAID.................... $88,046 $36,740 $494 $607 ======= ======= ==== ==== * For tax purposes short-term capital gains distributions are considered ordinary income distributions. As of December 31, 2007, the components of distributable earnings on a tax basis were the same as book. The cost basis of investments for federal income tax purposes was also the same as the book basis. The Funds do not have capital loss carry forwards as of December 31, 2007. 4. CAPITAL SHARE TRANSACTIONS The tables below summarize the activity in capital shares for each class of the Funds (in thousands). Each share is valued at $1.00: Year Ended December 31, 2007 Cash Management Institutional PlanAhead Platinum Class Class Class Class ---------- ------------- --------- -------- Money Market Fund Shares sold ................................. 4,891,367 1,043,210 631,312 14,014 Reinvestment of dividends ................... 28,101 12,166 3,889 502 Share redeemed .............................. (5,072,125) (1,109,117) (693,440) (48,172) ---------- ---------- -------- ------- Net (decrease) in shares outstanding ........ (152,657) (53,741) (58,239) (33,656) ========== ========== ======== ======= 15 AMERICAN BEACON FUNDS NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 BBH ComSet Class ---------------- Money Market Fund Shares sold ...................................... 5,382,427 Reinvestment of dividends ........................ 3 Shares redeemed .................................. (3,955,843) ---------- Net increase in shares outstanding ............... 1,426,587 ========== Cash Management PlanAhead Platinum Class Class Class ---------- --------- -------- U.S. Government Money Market Fund Shares sold ...................................... 132,887 8,531 4,299 Reinvestment of dividends ........................ 81 14 62 Shares redeemed .................................. (120,104) (8,974) (8,373) ---------- -------- ------- Net increase (decrease) in shares outstanding .... 12,864 (429) (4,012) ========== ======== ======= Year Ended December 31, 2006 Cash Management Institutional PlanAhead Platinum Class Class Class Class ---------- ------------- --------- -------- Money Market Fund Shares sold ...................................... 3,868,924 1,325,652 515,550 45,785 Reinvestment of dividends ........................ 19,760 3,586 7,834 1,460 Shares redeemed .................................. (3,586,788) (861,256) (589,770) (54,077) ---------- --------- -------- ------- Net increase (decrease) in shares outstanding .... 301,896 467,982 (66,386) (6,832) ========== ========= ======== ======= Cash Management PlanAhead Platinum Class Class Class ---------- --------- -------- U.S. Government Money Market Fund Shares sold ...................................... 20,647 8,290 10,194 Reinvestment of dividends ........................ 0 36 189 Shares redeemed .................................. (39,597) (8,201) (10,286) ------- ------ ------- Net increase (decrease) in shares outstanding .... (18,950) 125 97 ======= ====== ======= 16 AMERICAN BEACON MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) Cash Management Class Year Ended December 31, ---------------------------------------------------- 2007 2006 2005 2004 2003 -------- -------- -------- -------- -------- Net asset value, beginning of period ........................ $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 -------- -------- -------- -------- -------- Income from investment operations: Net investment income(A) ................................. 0.05 0.05 0.03 0.01 0.01 Net realized gain on investments(B) ...................... -- -- -- -- -- -------- -------- -------- -------- -------- Total income from investment operations ..................... 0.05 0.05 0.03 0.01 0.01 -------- -------- -------- -------- -------- Less distributions: Dividends from net investment income ..................... (0.05) (0.05) (0.03) (0.01) (0.01) Distributions from net realized gains on investments(B) .. -- -- -- -- -- -------- -------- -------- -------- -------- Total distributions ......................................... (0.05) (0.05) (0.03) (0.01) (0.01) -------- -------- -------- -------- -------- Net asset value, end of period .............................. $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ======== ======== ======== ======== ======== Total return ................................................ 5.28% 5.05% 3.19% 1.30% 1.08% ======== ======== ======== ======== ======== Ratios and supplemental data: Net assets, end of period (in thousands) ................. $349,249 $501,905 $200,010 $434,587 $117,395 Ratios to average net assets (annualized):(A) Expenses, net of waivers .............................. 0.15% 0.15% 0.15% 0.15% 0.16% Expenses, before waivers .............................. 0.19% 0.20% 0.23% 0.23% 0.24% Net investment income, net of waivers ................. 5.18% 5.04% 3.08% 1.34% 1.03% Net investment income, before waivers ................. 5.14% 4.99% 3.00% 1.26% 0.95% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon Master Money Market Portfolio. (B) Amount is less than $0.01 per share. 17 AMERICAN BEACON MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) Institutional Class Year Ended December 31, -------------------------------------------------- 2007 2006 2005 2004 2003 -------- -------- ------- ------- -------- Net asset value, beginning of period ........................ $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 -------- -------- ------- ------- -------- Income from investment operations: Net investment income(A) ................................. 0.05 0.05 0.03 0.01 0.01 Net realized gain on investments(B) ...................... -- -- -- -- -- -------- -------- ------- ------- -------- Total income from investment operations ..................... 0.05 0.05 0.03 0.01 0.01 -------- -------- ------- ------- -------- Less distributions: Dividends from net investment income ..................... (0.05) (0.05) (0.03) (0.01) (0.01) Distributions from net realized gains on investments(B) .. -- -- -- -- -- -------- -------- ------- ------- -------- Total distributions ......................................... (0.05) (0.05) (0.03) (0.01) (0.01) -------- -------- ------- ------- -------- Net asset value, end of period .............................. $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ======== ======== ======= ======= ======== Total return ................................................ 5.24% 4.99% 3.06% 1.20% 0.97% ======== ======== ======= ======= ======== Ratios and supplemental data: Net assets, end of period (in thousands) ................. $450,662 $504,403 $36,421 $34,146 $159,092 Ratios to average net assets (annualized):(A) Expenses, net of waivers .............................. 0.18% 0.19% 0.28% 0.24% 0.27% Expenses, before waivers .............................. 0.22% 0.23% 0.28% 0.24% 0.27% Net investment income, net of waivers ................. 5.13% 5.06% 3.07% 1.05% 1.00% Net investment income, before waivers ................. 5.10% 5.02% 3.07% 1.05% 1.00% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon Master Money Market Portfolio. (B) Amount is less than $0.01 per share. 18 AMERICAN BEACON MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) PlanAhead Class Year Ended December 31, ---------------------------------------------------- 2007 2006 2005 2004 2003 -------- -------- -------- -------- -------- Net asset value, beginning of period ........................ $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 -------- -------- -------- -------- -------- Income from investment operations: Net investment income(A) ................................. 0 .05 0 .05 0 .03 0 .01 0 .01 Net realized gain on investments(B) ...................... -- -- -- -- -- -------- -------- -------- -------- -------- Total income from investment operations ..................... 0.05 0.05 0.03 0.01 0.01 -------- -------- -------- -------- -------- Less distributions: Dividends from net investment income ..................... (0.05) (0.05) (0.03) (0.01) (0.01) Distributions from net realized gains on investments(B) .. -- -- -- -- -- -------- -------- -------- -------- -------- Total distributions ......................................... (0.05) (0.05) (0.03) (0.01) (0.01) -------- -------- -------- -------- -------- Net asset value, end of period .............................. $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ======== ======== ======== ======== ======== Total return ................................................ 4.94% 4.69% 2.82% 0.93% 0.70% ======== ======== ======== ======== ======== Ratios and supplemental data: Net assets, end of period (in thousands) ................. $112,278 $170,518 $236,903 $132,438 $126,972 Ratios to average net assets (annualized):(A) Expenses, net of waivers .............................. 0.47% 0.49% 0.51% 0.51% 0.54% Expenses, before waivers .............................. 0.47% 0.49% 0.51% 0.51% 0.54% Net investment income, net of waivers ................. 4.85% 4.59% 2.83% 0.94% 0.71% Net investment income, before waivers ................. 4.84% 4.59% 2.83% 0.94% 0.71% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon Master Money Market Portfolio. (B) Amount is less than $0.01 per share. 19 AMERICAN BEACON MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) BBH ComSet Class April 2 to December 31, 2007 ------------ Net asset value, beginning of period ........................ $ 1.00 ---------- Income from investment operations: Net investment income(A) ................................. 0 .04 Net realized gain on investments(B) ...................... -- ---------- Total income from investment operations ..................... 0.04 ---------- Less distributions: Dividends from net investment income ..................... (0.04) Distributions from net realized gains on investments(B) .. -- ---------- Total distributions ......................................... (0.04) ---------- Net asset value, end of period .............................. $ 1.00 ========== Total return ................................................ 3.92%(C) ========== Ratios and supplemental data: Net assets, end of period (in thousands) ................. $1,426,587 Ratios to average net assets (annualized):(A) Expenses, net of waivers .............................. 0.15% Expenses, before waivers .............................. 0.21% Net investment income, net of waivers ................. 5.10% Net investment income, before waivers ................. 5.03% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon Master Money Market Portfolio. (B) Amount is less than $0.01 per share. (C) Not annualized. 20 AMERICAN BEACON U.S. GOVERNMENT MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) Cash Management Class Year Ended December 31, ---------------------------------------------- 2007 2006 2005 2004 2003 ------- ------ ------- ------- ------- Net asset value, beginning of period ........................ $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ------- ------ ------- ------- ------- Income from investment operations: Net investment income(A) ................................. 0.05 0.05 0.03 0.01 0.01 Net realized gain on investments(B) ...................... -- -- -- -- -- ------- ------ ------- ------- ------- Total income from investment operations ..................... 0.05 0.05 0.03 0.01 0.01 ------- ------ ------- ------- ------- Less distributions: Dividends from net investment income ..................... (0.05) (0.05) (0.03) (0.01) (0.01) Distributions from net realized gains on investments(B) .. -- -- -- -- -- ------- ------ ------- ------- ------- Total distributions ......................................... (0.05) (0.05) (0.03) (0.01) (0.01) ------- ------ ------- ------- ------- Net asset value, end of period .............................. $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ======= ====== ======= ======= ======= Total return ................................................ 5.13% 4.97% 3.12% 1.22% 1.04% ======= ====== ======= ======= ======= Ratios and supplemental data: Net assets, end of period (in thousands) ................. $16,433 $3,568 $22,518 $28,591 $22,060 Ratios to average net assets (annualized):(A) Expenses, net of waivers .............................. 0.15% 0.19% 0.19% 0.19% 0.19% Expenses, before waivers .............................. 0.60% 0.64% 0.38% 0.29% 0.37% Net investment income, net of waivers ................. 4.87% 4.60% 2.99% 1.21% 1.04% Net investment income, before waivers ................. 4.42% 4.16% 2.80% 1.11% 0.86% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon U.S. Government Master Money Market Portfolio. (B) Amount is less than $0.01 per share. 21 AMERICAN BEACON U.S. GOVERNMENT MONEY MARKET FUND FINANCIAL HIGHLIGHTS (For a share outstanding throughout the period) PlanAhead Class Year Ended December 31, --------------------------------------------- 2007 2006 2005 2004 2003 ------ ------ ------ ------ ------- Net asset value, beginning of period ..................... $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ------ ------ ------ ------ ------- Income from investment operations: Net investment income(A) .............................. 0.05 0.04 0.03 0.00(B) 0 .01 Net realized gain on investments(B) ...................... -- -- -- -- -- ------ ------ ------ ------ ------- Total income from investment operations .................. 0.05 0.04 0.03 -- 0.01 ------ ------ ------ ------ ------- Less distributions: Dividends from net investment income .................. (0.05) (0.04) (0.03) 0.00(B) (0.01) Distributions from net realized gains on investments(B) .. -- -- -- -- -- ------ ------ ------ ------ ------- Total distributions ...................................... (0.05) (0.04) (0.03) -- (0.01) ------ ------ ------ ------ ------- Net asset value, end of period ........................... $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ====== ====== ====== ====== ======= Total return ............................................. 4.65% 4.51% 2.71% 0.85% 0.61% ====== ====== ====== ====== ======= Ratios and supplemental data: Net assets, end of period (in thousands) .............. $1,628 $2,058 $1,933 $5,370 $26,785 Ratios to average net assets (annualized):(A) Expenses, net of waivers ........................... 0.61% 0.63% 0.58% 0.56% 0.58% Expenses, before waivers ........................... 1.20% 1.02% 0.61% 0.57% 0.62% Net investment income, net of waivers .............. 4.56% 4.39% 2.47% 0.68% 0.72% Net investment income, before waivers .............. 3.97% 4.00% 2.44% 0.67% 0.68% - ---------- (A) The per share amounts and ratios reflect income and expenses assuming inclusion of the Fund's proportionate share of the income and expenses of the American Beacon U.S. Government Master Money Market Portfolio. (B) Amount is less than $0.01 per share. 22 AMERICAN BEACON MASTER TRUST REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and the Board of Trustees of American Beacon Master Trust: We have audited the accompanying statements of assets and liabilities of American Beacon Master Trust, comprised of the American Beacon Money Market Portfolio and the American Beacon U.S. Government Money Market Portfolio (collectively, the "Portfolios"), including the schedules of investments, as of December 31, 2007, and the related statements of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Portfolios' management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Portfolios' internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Portfolios' internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2007, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of American Beacon Master Trust as of December 31, 2007, the results of their operations for the year then ended, the changes in their net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Dallas, Texas February 27, 2008 23 AMERICAN BEACON MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2007 PAR AMOUNT VALUE ------------ ----------- (DOLLARS IN THOUSANDS) MEDIUM-TERM NOTES - 26.60% ABN Amro Bank NV, 5.259%, Due 4/18/2008 ++# ................ $ 132,050 $ 132,081 American Honda Finance Corp., 5.171%, Due 1/23/2008 ++# ............................... 40,000 40,001 5.075%, Due 2/22/2008 ++# ............................... 33,200 33,204 4.866%, Due 5/9/2008 ++# ................................ 15,000 15,000 ASIF Global Financing XXI, 5.408%, Due 3/14/2008 ++ # ...... 32,650 32,674 ASIF Global Financing XXXII, 5.08%, Due 2/25/2008 ++ # ..... 206,600 206,626 Bank of America Corp., 5.308%, Due 5/5/2008 ++ ............. 32,000 32,050 Bank of New York Mellon Corp., 4.966%, Due 6/16/2008 ++ .... 17,645 17,645 Bank of Scotland plc, 5.214%, Due 7/17/2008 ++ # ........... 125,800 125,818 Berkshire Hathaway Finance Corp., 5.299%, Due 1/11/2008 ++ ................................ 131,885 131,888 4.938%, Due 5/16/2008 ++ ................................ 23,750 23,760 Citigroup, Inc., 4.944%, Due 5/2/2008 ++ ................... 199,700 199,755 Commonwealth Bank of Australia, 4.96%, Due 1/31/2008 ++ # .. 175,000 175,005 Credit Suisse USA, Inc., 5.234%, Due 6/2/2008 ++ ........... 27,303 27,319 General Electric Capital Corp., 5.29%, Due 1/3/2008 ++ .................................. 211,500 211,501 5.293%, Due 1/15/2008 ++ ................................ 324,455 324,466 5.171%, Due 3/4/2008 ++ ................................. 40,886 40,891 5.303%, Due 4/15/2008 ++ ................................ 65,000 65,018 4.955%, Due 5/19/2008 ++ ................................ 20,000 20,007 HSBC Finance Corp., 4.982%, Due 5/21/2008 ++ ............... 162,770 162,784 JPMorgan Chase & Co., 5.154%, Due 1/25/2008 ++ ............. 295,000 295,016 Merrill Lynch & Co., Inc., 4.90%, Due 2/14/2008 ++ ................................. 61,300 61,305 5.091%, Due 6/16/2008 ++ ................................ 93,350 93,404 Morgan Stanley, 5.334%, Due 1/18/2008 ++ ................... 68,900 68,905 Royal Bank of Scotland plc, 5.259%, Due 4/11/2008 ++# ............................... 435,500 435,549 5.19%, Due 4/21/2008 ++ # ............................... 50,000 50,006 4.942%, Due 8/20/2008 ++ # .............................. 150,000 150,000 Toyota Motor Credit Corp., 5.233%, Due 4/15/2008 ++ ................................ 100,000 100,008 4.961%, Due 6/17/2008 ++ ................................ 24,000 24,002 5.213%, Due 7/7/2008 ++ ................................. 60,500 60,504 Wells Fargo & Co., 5.108%, Due 8/20/2008 ++ ................ 150,000 150,000 ----------- TOTAL MEDIUM-TERM NOTES .................................... 3,506,192 ----------- PROMISSORY NOTES - 3.41% Goldman Sachs Group, Inc., 4.889%, Due 5/9/2008 ++ ......... 450,000 450,000 ----------- CERTIFICATES OF DEPOSIT AND BANK NOTES - 19.14% Bank of America, NA, 5.084%, Due 7/25/2008 ++ .............. 18,300 18,303 See accompanying notes 24 AMERICAN BEACON MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2007 PAR AMOUNT VALUE ------------ ----------- (DOLLARS IN THOUSANDS) Bank of Scotland N.Y., 5.05%, Due 3/14/2008 ................ $ 155,600 $ 155,638 BNP Paribas N.Y., 5.00%, Due 3/13/2008 .................................... 200,000 200,000 5.11%, Due 3/13/2008 .................................... 50,000 50,011 5.00%, Due 3/17/2008 .................................... 100,000 100,000 4.93%, Due 3/27/2008 .................................... 100,000 100,000 Credit Suisse N.Y., 5.00%, Due 2/26/2008 ++ ................ 250,000 250,000 Deutsche Bank N.Y., 4.941%, Due 6/19/2008 ++ ............... 280,000 280,040 HSBC Bank USA, 5.061%, Due 7/28/2008 ++ .................... 71,000 71,033 M&I Marshall & Ilsley Bank, 4.839%, Due 2/15/2008 ++ ....... 196,500 196,501 Nordea Bank Finland N.Y., 4.991%, Due 5/28/2008 ++ ......... 21,600 21,596 Royal Bank of Canada N.Y., 4.896%, Due 3/20/2008 ++ ........ 10,000 10,000 Societe Generale N.Y., 5.00%, Due 3/7/2008 ..................................... 250,000 250,000 4.68%, Due 3/28/2008 .................................... 200,000 200,000 Suntrust Bank, 5.309%, Due 4/2/2008 ++ ..................... 53,020 53,035 Toronto Dominion Bank N.Y., 4.66%, Due 3/28/2008 ........... 250,000 249,999 US Bank, NA, 5.20%, Due 1/3/2008 ++ ........................ 221,500 221,500 Wachovia Bank, NA, 4.976%, Due 6/20/2008 ++ ................ 50,000 50,020 Westpac Bank N.Y., 5.203%, Due 1/15/2008 ++ ................ 46,000 46,000 ----------- TOTAL CERTIFICATES OF DEPOSIT AND BANK NOTES ............... 2,523,676 ----------- COMMERCIAL PAPER - 18.39% Ciesco LLC, 4.92%, Due 1/28/2008 # ......................... 225,000 224,170 Danske Corp., 4.64%, Due 1/31/2008 # ....................... 100,000 99,613 Edison Asset Securitization LLC, 4.84%, Due 2/20/2008 # .... 150,000 148,992 General Electric Capital Corp., 4.83%, Due 2/15/2008 ....... 100,000 99,396 GOVCO, Inc., 4.73%, Due 1/22/2008 # .................................. 100,000 99,724 4.73%, Due 1/23/2008 # .................................. 150,000 149,566 ING US Funding LLC, 4.64%, Due 1/23/2008 .................................... 11,950 11,916 4.89%, Due 1/25/2008 .................................... 35,000 34,886 4.83%, Due 1/28/2008 .................................... 150,000 149,455 Jupiter Securitization, LLC, 5.80%, Due 1/18/2008 # .................................. 55,000 54,849 5.20%, Due 1/22/2008 # .................................. 119,615 119,252 Kitty Hawk Funding Corp., 4.84%, Due 1/18/2008 # .................................. 24,258 24,203 4.78%, Due 1/28/2008 # .................................. 72,628 72,368 Long Lane Master Trust IV, 4.97%, Due 1/22/2008 # .................................. 120,000 119,659 4.78%, Due 1/24/2008 # .................................. 27,000 26,918 5.60%, Due 1/25/2008 # .................................. 110,787 110,402 4.78%, Due 1/28/2008 # .................................. 10,297 10,260 See accompanying notes 25 AMERICAN BEACON MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2007 PAR AMOUNT VALUE ------------ ----------- (DOLLARS IN THOUSANDS) Societe Generate NA, Inc., 4.745%, Due 1/29/2008 ........... $ 100,000 $ 99,631 Three Rivers Funding Corp., 5.00%, Due 1/2/2008 # .......... 450,000 449,937 Toyota Motor Credit Corp., 4.76%, Due 2/22/2008 ............ 200,000 198,625 UBS Finance Delaware LLC, 4.77%, Due 1/24/2008 ............. 53,500 53,337 Variable Funding Capital Corp., 5.35%, Due 1/17/2008 # .................................. 17,606 17,564 5.35%, Due 1/18/2008 # .................................. 50,000 49,874 ----------- TOTAL COMMERCIAL PAPER ..................................... 2,424,597 ----------- TIME DEPOSITS - 3.03% Danske Bank, 5.00%, Due 1/2/2008 ........................... 400,000 400,000 ----------- SHARES ------------ SHORT TERM INVESTMENTS - 9.64% BlackRock Temp Fund ........................................ 630,638,084 630,638 Dreyfus Institutional Cash Advantage Fund .................. 640,000,000 640,000 ----------- TOTAL SHORT TERM INVESTMENTS ............................... 1,270,638 ----------- PAR AMOUNT ------------ REPURCHASE AGREEMENTS - 19.42% Bank of America, NA, 4.68%, Due 1 /2/2008 (Held at Bank of New York, Collateralized by Mortgage Loan Obligations valued at $577,800, 2/23/2036) .......................... $ 540,000 540,000 Barclays Bank plc, 4.65%, Due 1/2/2008 (Held at Bank of New York, Collateralized by Equity Securities valued at $619,500, 1/1/2049) ..................................... 590,000 590,000 Citigroup, Inc., 4.68%, Due 1/2/2008 (Held at Chase NYC, Collateralized by Mortgage Loan Obligations valued at $433,771, 2/28/2037 - 11/29/2037) ....................... 390,000 390,000 Deutsche Bank Securities, Inc., 4.68%, Due 1/2/2008 (Held at Bank of New York, Collateralized by Equity Securities valued at $325,500, 1/1/2049) ........................... 310,000 310,000 Goldman Sachs Group, Inc., 4.75%, Due 1 /2/2008 (Held at Bank of New York, Collateralized by Mortgage Loan Obligations valued at $144,200, 1/1/2010 - 1/1/2020) .... 140,000 140,000 Lehman Brothers, Inc., 4.70%, Due 1 /2/2008 (Held at Chase NYC, Collateralized by Corporate Obligations valued at $55,611, 5.125% - 6.75%, 9/13/2016 - 7/15/2027 and U.S. Government Agency Obligations valued at $546,108, 5.5% - 6.5%, 11/1/2036 -9/1/2037) .............................. 590,000 590,000 ----------- TOTAL REPURCHASE AGREEMENTS ................................ 2,560,000 ----------- TOTAL INVESTMENTS - 99.63% (COST $13,135,103) ................. $13,135,103 OTHER ASSETS, NET OF LIABILITIES - 0.37% ...................... 48,896 ----------- TOTAL NET ASSETS - 100.00% .................................... $13,183,999 =========== See accompanying notes 26 AMERICAN BEACON MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2007 Percentages are stated as a percent of net assets. ++ The coupon rate shown on floating or adjustable rate securities represents the rate at period end. The due date on these types of securities reflects the final maturity date. # Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At the period end, the value of these securities amounted to $3,173,315 or 24.07% of net assets. The Fund has no right to demand registration of these securities. See accompanying notes 27 AMERICAN BEACON U.S. GOVERNMENT MONEY MARKET PORTFOLIO SCHEDULE OF INVESTMENTS DECEMBER 31, 2007 PAR AMOUNT VALUE ------------ ----------- (DOLLARS IN THOUSANDS) U.S. AGENCY OBLIGATIONS - 18.88% FEDERAL HOME LOAN BANK - 8.84% 4.56%, Due 3/17/2008 .................................... $ 7,500 $ 7,428 4.27%, Due 3/26/2008 .................................... 20,000 19,798 4.775%, Due 8/15/2008 ++ ................................ 35,000 35,014 4.841%, Due 9/17/2008 ++ ................................ 25,000 24,992 5.074%, Due 1/5/2009 ++ ................................. 35,000 34,998 ----------- 122,230 ----------- FEDERAL HOME LOAN MORTGAGE CORPORATION - 5.94% 4.25%, Due 1/28/2008 .................................... 29,000 28,907 4.29%, Due 3/24/2008 .................................... 18,382 18,200 4.55%, Due 4/7/2008 ..................................... 10,072 9,948 4.767%, Due 2/11/2009 ++ ................................ 25,000 24,994 ----------- 82,049 ----------- FEDERAL NATIONAL MORTGAGE ASSOCIATION - 4.10% 4.45%, Due 2/6/2008 ..................................... 17,736 17,657 4.27%, Due 3/19/2008 .................................... 15,085 14,946 4.28%, Due 3/26/2008 .................................... 20,044 19,842 4.47%, Due 4/9/2008 ..................................... 4,199 4,147 ----------- 56,592 ----------- TOTAL U.S. AGENCY OBLIGATIONS .............................. 260,871 ----------- REPURCHASE AGREEMENTS - 81.06% Banc of America Securities LLC, 4.62%, Due 1/2/2008 (Held at Bank New York, Collateralized by U.S. Government Agency Obligations valued at $408,000, 5.0%, 6/1/2035) ......... 400,000 400,000 Barclays Capital, Inc., 4.65%, Due 1/2/2008 (Held at Bank of New York, Collateralized by U.S. Government Agency Obligations valued at $306,000, 4.5% - 6.0%, 1/1/2018 - 5/1/2047) ............................................... 300,000 300,000 Goldman Sachs, 4.75%, Due 1/2/2008 (Held at Bank of New York, Collateralized by U.S. Government Agency Obligations valued at $428,682, 4.5% - 7.0%, 7/1/2010 - 12/1/2037) .............................................. 420,276 420,276 ----------- TOTAL REPURCHASE AGREEMENTS ................................ 1,120,276 ----------- TOTAL INVESTMENTS - 99.94% (COST $1,381,147) .................. $ 1,381,147 OTHER ASSETS, NET OF LIABILITIES - 0.06% ...................... 837 ----------- TOTAL NET ASSETS - 100.00% .................................... $ 1,381,984 =========== Percentages are stated as a percent of net assets. ++ The coupon rate shown on floating or adjustable rate securities represents the rate at period end. The due date on these types of securities reflects the final maturity date. See accompanying notes 28 AMERICAN BEACON MASTER TRUST PORTFOLIOS STATEMENT OF ASSETS AND LIABILITIES DECEMBER 31, 2007 (IN THOUSANDS) U.S. GOVERNMENT MONEY MARKET MONEY MARKET ------------ --------------- ASSETS: Investment in securities at value (cost - $10,575,103 and $260,871, respectively)........................................................... $10,575,103 $ 260,871 Repurchase agreement (cost - $2,560,000 and $1,120,276, respectively)... 2,560,000 1,120,276 Dividends and interest receivable....................................... 50,408 1,008 Prepaid expenses........................................................ 8 -- ----------- ---------- TOTAL ASSETS......................................................... 13,185,519 1,382,155 ----------- ---------- LIABILITIES: Management and investment advisory fees payable (Note 2)................ 1,302 107 Other liabilities....................................................... 218 64 ----------- ---------- TOTAL LIABILITIES.................................................... 1,520 171 ----------- ---------- NET ASSETS APPLICABLE TO INVESTORS' BENEFICIAL INTERESTS................... $13,183,999 $1,381,984 =========== ========== See accompanying notes 29 AMERICAN BEACON MASTER TRUST PORTFOLIOS STATEMENT OF OPERATIONS YEAR ENDED DECEMBER 31, 2007 (IN THOUSANDS) U.S. Government Money Market Money Market ------------ --------------- INVESTMENT INCOME: Interest income..................................... $841,750 $48,251 -------- ------- TOTAL INVESTMENT INCOME.......................... 841,750 48,251 -------- ------- EXPENSES: Management and investment advisory fees (Note 2).... 15,926 947 Custodian fees...................................... 443 27 Professional fees................................... 177 43 Other expenses...................................... 381 31 -------- ------- TOTAL EXPENSES................................... 16,927 1,048 -------- ------- NET INVESTMENT INCOME.................................. 824,823 47,203 -------- ------- REALIZED GAIN ON INVESTMENTS: Net realized gain on investments.................... 127 3 -------- ------- NET GAIN ON INVESTMENTS.......................... 127 3 -------- ------- NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS... $824,950 $47,206 ======== ======= See accompanying notes 30 AMERICAN BEACON MASTER TRUST PORTFOLIOS STATEMENT OF CHANGES IN NET ASSETS (IN THOUSANDS) U.S. GOVERNMENT MONEY MARKET MONEY MARKET Year Ended December 31, Year Ended December 31, ---------------------------- ------------------------- 2007 2006 2007 2006 ------------ ------------- ----------- ----------- INCREASE IN NET ASSETS: OPERATIONS: Net investment income....................... $ 824,823 $ 530,893 $ 47,203 $ 17,197 Net realized gain on investments............ 127 12 3 1 ------------ ------------- ----------- ----------- TOTAL INCREASE IN NET ASSETS RESULTING FROM OPERATIONS....................... 824,950 530,905 47,206 17,198 ------------ ------------- ----------- ----------- TRANSACTIONS IN INVESTORS' BENEFICIAL INTERESTS: Contributions............................... 35,059,358 131,682,048 5,041,893 3,002,184 Withdrawals................................. (35,428,478) (126,270,825) (4,270,511) (2,695,546) ------------ ------------- ----------- ----------- NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM TRANSACTIONS IN INVESTORS' BENEFICIAL INTERESTS....... (369,120) 5,411,223 771,382 306,638 ------------ ------------- ----------- ----------- NET INCREASE IN NET ASSETS............... 455,830 5,942,128 818,588 323,836 ------------ ------------- ----------- ----------- NET ASSETS: Beginning of period......................... 12,728,169 6,786,041 563,396 239,560 ------------ ------------- ----------- ----------- END OF PERIOD............................... $ 13,183,999 $ 12,728,169 $ 1,381,984 $ 563,396 ============ ============= =========== =========== See accompanying notes 31 AMERICAN BEACON MASTER TRUST PORTFOLIOS FINANCIAL HIGHLIGHTS Money Market Year Ended December 31, -------------------------------- 2007 2006 2005 2004 2003 ---- ---- ---- ---- ---- Total return................................. 5.33% 5.09% 3.25% 1.34% 1.13% Ratios to average net assets (annualized):... Expenses.................................. 0.11% 0.11% 0.11% 0.11% 0.11% Net investment income..................... 5.19% 5.03% 3.20% 1.30% 1.14% U.S. Government Money Market Year Ended December 31, -------------------------------- 2007 2006 2005 2004 2003 ---- ---- ---- ---- ---- Total return................................. 5.18% 5.04% 3.19% 1.30% 1.11% Ratios to average net assets (annualized):... Expenses.................................. 0.11% 0.12% 0.12% 0.11% 0.12% Net investment income..................... 4.98% 4.97% 3.15% 1.30% 1.13% 32 AMERICAN BEACON MASTER TRUST NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES American Beacon Master Trust (the "Trust") is registered under the Investment Company Act of 1940, as amended, as a no load, open-end management investment company that was organized as a trust under the laws of the Commonwealth of Massachusetts pursuant to a Declaration of Trust dated as of November 1, 2004. Prior to November 1, 2004, the Trust was organized as a trust under the laws of the State of New York. Beneficial interests in the Trust are divided into separate series, each having distinct investment objectives and policies. These financial statements relate to the American Beacon Master Money Market Portfolio and American Beacon Master U.S. Government Money Market Portfolio (each a "Portfolio" and collectively the "Portfolios"). The objective of each Portfolio is current income, liquidity and the maintenance of a stable price of $1.00 per share. The assets of each Portfolio belong only to that Portfolio, and the liabilities of each Portfolio are borne solely by that Portfolio and no other. American Beacon Advisors, Inc. (the "Manager") is a wholly owned subsidiary of AMR Corporation and was organized in 1986 to provide business management, advisory, administrative and asset management consulting services. The following is a summary of the significant accounting policies followed by the Portfolios. Security Valuation Securities of the Portfolios are valued at amortized cost, which approximates fair value. In the event that a deviation of 1/2 of 1% or more exists between the $1.00 per share price of the Portfolios, calculated at amortized cost, and the price per share calculated by reference to market quotations, or if there is any other deviation that the Trust's Board of Trustees (the "Board") believes would result in a material dilution to shareholders or purchasers, the Board will promptly consider the appropriate action that should be initiated. Security Transactions and Investment Income Security transactions are recorded on the trade date of the security purchase or sale. Interest income is earned from settlement date, recorded on the accrual basis, and adjusted, if necessary, for amortization of premiums or accretion of discounts on investment grade short-term securities and zero coupon instruments. For financial and tax reporting purposes, realized gains and losses are determined on the basis of specific lot identification. Federal Income Taxes The Portfolios will be treated as partnerships for federal income tax purposes. As such, each investor in a Portfolio will be taxed on its share of the Portfolio's ordinary income and capital gains. It is intended that each Portfolio's assets will be managed in such a way that an investor in the Portfolio will be able to satisfy the requirements of subchapter M of the Internal Revenue Code. Repurchase Agreements Under the terms of a repurchase agreement, securities are acquired by a Portfolio from a securities dealer or a bank that are subject to resale at a later date. Repurchase agreements are fully collateralized by government securities for the Portfolios. Additionally, repurchase agreements in the Money Market Portfolio may be collateralized by non-government securities. All collateral is valued at cost, which approximates market value and is held at the custodian bank. The collateral is monitored daily by the Manager so that the collateral's market value exceeds the carrying value of the repurchase agreement plus accrued interest. 33 AMERICAN BEACON MASTER TRUST NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results may differ from those estimated. Recently Issued Accounting Pronouncements On July 13, 2006, the Financial Accounting Standards Board ("FASB") released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" ("FIN 48"). FIN 48 provides guidance on how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Portfolios' tax returns to determine whether the tax positions are "more-likely-than-not" of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense in the current year. The Portfolios file tax returns with the U.S. Internal Revenue Service. Generally, the tax authorities can examine all tax returns filed for the last three years. The Portfolios may be subject to taxes imposed by countries in which it invests. Such taxes are generally based on returns on income earned or gains realized or repatriated. Taxes are accrued and applied to net investment income, net realized capital gains and net unrealized appreciation, as applicable, as the income is earned or capital gains are recorded. If applicable, the Portfolios recognize interest accrued related to unrecognized tax benefits in interest expense and penalties in "Other expenses" on the Statements of Operations. The Portfolios adopted the provisions of FIN 48 effective January 1, 2007. Tax positions taken by the Portfolios have been deemed to meet the more likely than not threshold, and therefore there have been no adjustments to the Portfolios' net asset value per share. In September 2006, the FASB issued Statement on Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"). This standard clarifies the definition of fair value for financial reporting, establishes a framework for measuring fair value and requires additional disclosures about the use of fair value measurements. FAS 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. As of December 31, 2007, the Manager does not believe the adoption of FAS 157 will materially impact the amounts represented in the financial statements; however, additional disclosures will be required about the inputs used to develop the measurements of fair value. Other Under the Trust's organizational documents, its officers and directors are indemnified against certain liability arising out of the performance of their duties to the Trust. In the normal course of business, the Trust enters into contracts that provide indemnification to the other party or parties against potential costs or liabilities. The Trust's maximum exposure under these arrangements is dependent on claims that may be made in the future and, therefore, cannot be estimated. The Trust has had no prior claims or losses pursuant to any such agreement. 2. TRANSACTIONS WITH AFFILIATES Management Agreement The Trust and the Manager are parties to a Management Agreement that obligates the Manager to provide or oversee the provision of all administrative, investment advisory and portfolio management services. The Manager serves as the sole investment advisor to each of the Portfolios. As compensation for performing 34 AMERICAN BEACON MASTER TRUST NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2007 the duties required under the Management Agreement, the Manager receives from the Portfolios 0.10% of the average daily net assets of each of the Portfolios. Interfund Lending Program Pursuant to an exemptive order by the Securities and Exchange Commission, the Portfolios, along with other registered investment companies having management contracts with the Manager, may participate in an interfund lending program. This program provides an alternative credit facility allowing the Money Market Portfolio to lend money to other participating series managed by the Manager. For the year ended December 31, 2007, the Money Market Portfolio earned $8,708 under the credit facility. This amount is included in interest income on the financial statements. 35 AMERICAN BEACON FUNDS PRIVACY POLICY & FEDERAL TAX INFORMATION DECEMBER 31, 2007 (UNAUDITED) PRIVACY POLICY The American Beacon Funds recognizes and respects the privacy of our shareholders. We are providing this notice to you so you will understand how shareholder information may be collected and used. We may collect nonpublic personal information about you from one or more of the following sources: - information we receive from you on applications or other forms; - information about your transactions with us or our service providers; and - information we receive from third parties. We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We restrict access to your nonpublic personal information to those employees or service providers who need to know that information to provide products or services to you. To ensure the confidentiality of your nonpublic personal information, we maintain safeguards that comply with federal standards. FEDERAL TAX INFORMATION We are providing this information as required by the Internal Revenue Code. The amounts shown may differ from those in other areas of this report because of differences between tax and financial reporting requirements. The distributions to shareholders during the tax year ended December 31, 2007 include short-term capital gains of $9,550 and $24 for the Money Market Fund and U.S. Government Money Market Fund, respectively. We are required by Internal Revenue Code to advise you within 60 days of the Funds' fiscal year end as to the federal tax status of dividends paid by the Funds during its fiscal year ended December 31, 2007. For purposes of preparing your annual federal income tax returns, you should report the amounts reflected on your Form 1099-DIV, Box 1a. Of the ordinary dividends paid, the percentage of income exempt from federal income taxes is 0% for both the Money Market Fund and the U.S. Government Money Market Fund. Of the ordinary dividends paid to shareholders of the U.S. Government Money Market Fund during the tax year ended December 31, 2007, 8.1% were derived from U.S. Treasury Obligations. Pursuant to Section 852 of the Internal Revenue Code, the Money Market Fund designated $621 as long-term capital gain dividends for the taxable year ended December 31, 2007. 36 TRUSTEES AND OFFICERS OF THE AMERICAN BEACON FUNDS (UNAUDITED) The Trustees and officers of the American Beacon Funds (the "Trust") are listed below, together with their principal occupations during the past five years. Unless otherwise indicated, the address of each person listed below is 4151 Amon Carter Boulevard, MD 2450, Fort Worth, Texas 76155. Each Trustee oversees twenty-seven funds in the fund complex that includes the Trust, the American Beacon Master Trust, the American Beacon Mileage Funds, and the American Beacon Select Funds. The Trust's Statement of Additional Information contains additional information about the Trustees and is available without charge by calling 1-800-658-5811. POSITION, TERM OF OFFICE AND LENGTH OF TIME SERVED PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS NAME, AGE AND ADDRESS WITH THE TRUST AND CURRENT DIRECTORSHIPS - --------------------- --------------------- --------------------------------------------------------- INTERESTED TRUSTEES Term Lifetime of Trust until removal, resignation or retirement* Douglas G. Herring** (50) Trustee since 2006 President (2006-Present) and CEO (2008-Present), American Executive Vice Beacon Advisors, Inc.; Vice President and Controller, President from American Airlines, Inc. (1998-2006); Chairman 2006 to 2007 (2003-Present) and Director (1995-Present), American President since 2007 Airlines Federal Credit Union; Trustee, American Beacon Mileage Funds (2006-Present); Trustee, American Beacon Select Funds (2006-Present); Trustee, American Beacon Master Trust (2006-Present); Director, American Beacon Global Funds SPC (2007-Present); Director, American Beacon Global Funds plc (2007-Present). William F. Quinn** (59) Trustee Chairman (2006-Present), CEO (2006-2007), President since 1987 (1986-2006), and Director (2003-Present), American Beacon President from Advisors, Inc.; Chairman (1989-2003) and Director 1987 to 2007 (1979-1989, 2003-Present), American Airlines Federal Executive Vice Credit Union; Director, Hicks Acquisition I, Inc. President (2007-Present); Director, Crescent Real Estate Equities, since 2007 Inc.(1994-2007); Director, Pritchard, Hubble & Herr, LLC (investment advisor) (2001-2006); Director of Investment Committee, Southern Methodist University Endowment Fund (1996-Present); Member, Southern Methodist University Cox School of Business Advisory Board (1999-2002); Member, New York Stock Exchange Pension Manager Committee (1997-1998, 2000-2002, 2006-Present); Chairman (2007-Present) and Vice Chairman (2004-2007), Committee for the Investment of Employee Benefits; Director, United Way of Metropolitan Tarrant County (1988-2000, 2004-Present); Trustee, American Beacon Mileage Funds (1995-Present); Trustee, American Beacon Select Funds (1999-Present); Trustee, American Beacon Master Trust (1995-Present); Director, American Beacon Global Funds SPC (2002-Present); Director, American Beacon Global Funds plc (2007-Present). Alan D. Feld** (71) Trustee since 1996 Partner, Akin, Gump, Strauss, Hauer & Feld, LLP (law firm) (1960-Present); Director, Clear Channel Communications (1984-Present); Trustee, CenterPoint Properties (1994-2006); Member Board of Trustees, Southern Methodist University; Member, Board of Visitors, The University of Texas M.D. Anderson Cancer Center; Member, Board of Visitors, Zale Lipshy Hospital; Trustee, American Beacon Mileage Funds (1996-Present); Trustee, American Beacon Select Funds (1999-Present); Trustee, American Beacon Master Trust (1996-Present). NON-INTERESTED TRUSTEES Term Lifetime of Trust until removal, resignation or retirement* W. Humphrey Bogart (63) Trustee since 2004 Consultant, New River Canada Ltd. (mutual fund servicing company) (1998-2003); Board Member, Baylor University Medical Center Foundation (1992-2004); President and CEO, Allmerica Trust Company, NA (1996-1997); President and CEO, Fidelity Investments Southwest Company (1983-1995); Senior Vice President of Regional Centers, Fidelity Investments (1988-1995); Trustee, American Beacon Mileage Funds (2004-Present); Trustee, American Beacon Select Funds (2004-Present); Trustee, American Beacon Master Trust (2004-Present). 37 TRUSTEES AND OFFICERS OF THE AMERICAN BEACON FUNDS (UNAUDITED) POSITION, TERM OF OFFICE AND LENGTH OF TIME SERVED PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS NAME, AGE AND ADDRESS WITH THE TRUST AND CURRENT DIRECTORSHIPS - --------------------- --------------------- --------------------------------------------------------- NON-INTERESTED TRUSTEES (CONT.) Brenda A. Cline (47) Trustee since 2004 Executive Vice President, Chief Financial Officer, Treasurer and Secretary, Kimbell Art Foundation (1993-Present); Trustee, Texas Christian University (1998-Present); Trustee, W.I. Cook Foundation, Inc. (d/b/a Cook Children's Health Foundation) (2001-2006); Director, Christian Church Foundation (1999-2007); Trustee, American Beacon Mileage Funds (2004-Present); Trustee, American Beacon Select Funds (2004-Present); Trustee, American Beacon Master Trust (2004-Present). Richard A. Massman (64) Trustee since 2004 Senior Vice President and General Counsel, Hunt Consolidated, Inc. (holding company engaged in oil and gas exploration and production, refining, real estate, farming, ranching, and venture capital activities) (1994-Present); Trustee, American Beacon Mileage Funds (2004-Present); Trustee, American Beacon Select Funds (2004-Present); Trustee, American Beacon Master Trust (2004-Present). Stephen D. O'Sullivan (72) Trustee since 1987 Consultant (1994-Present); Trustee, American Beacon Mileage Funds (1995-Present); Trustee, American Beacon Select Funds (1999-Present); Trustee, American Beacon Master Trust (1995-Present). R. Gerald Turner (62) Trustee since 2001 President, Southern Methodist University (1995-Present); 225 Perkins Admin. Bldg. Director, ChemFirst (1986-2002); Director, J.C. Penney Southern Methodist Univ. Company, Inc. (1996-Present); Director, California Dallas, Texas 75275 Federal Preferred Capital Corp. (2001-2003); Director, Kronus Worldwide Inc. (chemical manufacturing) (2003-Present); Director, First Broadcasting Investment Partners, LLC (2003-2007); Member, Salvation Army of Dallas Board of Directors; Member, Methodist Hospital Advisory Board; Co-Chair, Knight Commission on Intercollegiate Athletics; Trustee, American Beacon Mileage Funds (2001-Present); Trustee, American Beacon Select Funds (2001-Present); Trustee, American Beacon Master Trust (2001-Present). Kneeland Youngblood (52) Trustee since 1996 Managing Partner, Pharos Capital Group, LLC (a private 100 Crescent Court Chairman since equity firm) (1998-Present); Director, Energy Future Suite 1740 2005 Holdings Corp. (2007-Present); Director, Burger King Dallas, Texas 75201 Corporation (2004-Present); Director, Gap, Inc. (2006-Present); Trustee, City of Dallas, Texas Employee Retirement Fund (2004-Present); Director, Starwood Hotels and Resorts (2001-Present); Member, Council on Foreign Relations (1995-Present); Trustee, St. Mark's School of Texas (2002-Present); Trustee, American Beacon Mileage Funds (1996- Present); Trustee, American Beacon Select Funds (1999-Present); Trustee, American Beacon Master Trust (1996-Present). 38 TRUSTEES AND OFFICERS OF THE AMERICAN BEACON FUNDS (UNAUDITED) POSITION, TERM OF OFFICE AND LENGTH OF TIME SERVED PRINCIPAL OCCUPATION(S) DURING PAST 5 YEARS NAME, AGE AND ADDRESS WITH THE TRUST AND CURRENT DIRECTORSHIPS - --------------------- --------------------- --------------------------------------------------------- OFFICERS Term One Year Rosemary K. Behan (48) VP, Secretary and Vice President, Legal and Compliance, American Beacon Chief Legal Advisors, Inc. (2006-Present); Assistant General Counsel, Officer since 2006 First Command Financial Planning, Inc. (2004-2006); Enforcement Attorney (1995-2004), Securities and Exchange Commission. Brian E. Brett (47) VP since 2004 Vice President, Director of Sales and Marketing, American Beacon Advisors, Inc. (2004-Present); Regional Vice President, Neuberger Berman, LLC (investment advisor) (1996-2004). Wyatt Crumpler (41) VP since 2007 Vice President, Trust Investments, American Beacon Advisors, Inc. (2007-Present); Managing Director of Corporate Accounting (2004-2007), Director of IT Strategy and Finance (2002-2004), American Airlines, Inc. Michael W. Fields (53) VP since 1989 Vice President, Fixed Income Investments, American Beacon Advisors, Inc. (1988-Present); Director, American Beacon Global Funds SPC (2002-Present); Director, American Beacon Global Funds plc (2007-Present). Rebecca L. Harris (41) Treasurer since 1995 Vice President, Finance, American Beacon Advisors, Inc. (1995-Present). Christina E. Sears (36) Chief Compliance Chief Compliance Officer, American Beacon Advisors, Inc. Officer since 2004 (2004-Present); Senior Compliance Analyst, American and Asst. Secretary Beacon Advisors, Inc. (1998-2004). since 1999 * The Board has adopted a retirement plan that requires Trustees to retire no later than the last day of the calendar year in which they reach the age of 72, with the exception of Messrs. Quinn and O'Sullivan. ** Messrs. Quinn, Feld and Herring are deemed to be "interested persons" of the Trust, as defined by the 1940 Act. Mr. Quinn is Chairman of the Manager. Mr. Feld's law firm of Akin, Gump, Strauss, Hauer & Feld LLP has provided legal services within the past two years to one or more of the Trust's Investment advisors. Mr. Herring is President and CEO of the Manager. 39 (THIS PAGE INTENTIONALLY LEFT BLANK) 40 (THIS PAGE INTENTIONALLY LEFT BLANK) 41 (AMERICAN BEACON FUNDS(SM) LOGO) DELIVERY OF DOCUMENT To reduce expenses, your financial institution may mail only one copy of the Prospectus, Annual Report and Semi-Annual Report to those addresses shared by two or more accounts. If you wish to receive individual copies of these documents, please contact your financial institution. Delivery of individual copies will commence thirty days after receiving your request. If you invest in the Fund through a financial institution, you may be able to receive the Fund's regulatory mailings, such as the Prospectus, Annual Report and Semi-Annual Report, by e-mail. If you are interested in this option, please go to www.icsdelivery.com and search for your financial institution's name or contact your financial institution directly. TO OBTAIN MORE INFORMATION ABOUT THE FUND: (GRAPHIC) (GRAPHIC) BY E-MAIL: ON THE INTERNET: american_beacon.funds@ambeacon.com Visit our website at www.americanbeaconfunds.com (GRAPHIC) (GRAPHIC) BY TELEPHONE: BY MAIL: Institutional Class American Beacon Funds Call (800) 658-5811 4151 Amon Carter Blvd., MD 2450 PlanAhead Class Fort Worth, TX 76155 Call (800) 388-3344 AVAILABILITY OF QUARTERLY PORTFOLIO AVAILABILITY OF PROXY VOTING POLICY AND SCHEDULES RECORDS In addition to the Schedule of A description of the policies and Investments provided in each procedures the Fund uses to determine semi-annual and annual report, the how to vote proxies relating to Fund files a complete schedule of its portfolio securities is available in the portfolio holdings with the Fund's Statement of Additional Securities and Exchange Commission Information, is available free of charge ("SEC") on Form N-Q as of the first on the Fund's website and third fiscal quarters. The Fund's (www.americanbeaconfunds.com) and by Forms N-Q are available on the SEC's calling 1-800-967-9009 or by accessing website at www.sec.gov. The Forms N-Q the SEC's website at www.sec.gov. The may also be reviewed and copied at Fund's proxy voting record for the most the SEC's Public Reference Room, 450 recent year ended June 30 is filed Fifth Street, NW, Washington, DC annually with the SEC on Form N-PX. The 20549. Information regarding the Fund's Forms N-PX are available on the operation of the SEC's Public SEC's website at www.sec.gov. The Fund's Reference Room may be obtained by proxy voting record may also be obtained calling 1-800-SEC-0330. A complete by calling 1-800-967-9009. schedule of the Fund's portfolio holdings is also available on the Funds' website (www.americanbeaconfunds.com) approximately thirty days after the end of each month. FUND SERVICE PROVIDERS: CUSTODIAN STATE STREET BANK AND TRUST Boston, Massachusetts TRANSFER AGENT BOSTON FINANCIAL DATA SERVICES Kansas City, Missouri INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ERNST & YOUNG LLP Dallas, Texas DISTRIBUTOR FORESIDE FUND SERVICES Portland, Maine This report is prepared for shareholders of the American Beacon Funds and may be distributed to others only if preceded or accompanied by a current prospectus. American Airlines, Inc. is not responsible for investments made in the American Beacon Funds. American Beacon Funds is a service mark of AMR Corporation. PlanAhead Class is a registered service mark of American Beacon Advisors, Inc. American Beacon Money Market Fund and American Beacon U.S. Government Money Market Fund are service marks of American Beacon Advisors, Inc. AR 12/07 541497 ITEM 2. CODE OF ETHICS. The Trust has adopted a code of ethics that applies to its principal executive and financial officers (the "Code"). The Trust did not amend the Code nor did it grant any waivers to the provisions of the Code during the period covered by the shareholder report presented in Item 1. The Code is filed herewith as Exhibit 99.CODE ETH. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. The Trust's Board of Trustees has determined that Brenda Cline, a member of the Trust's Audit and Compliance Committee, is an "audit committee financial expert" as defined in Form N-CSR. Ms. Cline is "independent" as defined in Form N-CSR. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) <Table> <Caption> Audit Fees Fiscal Year Ended - ---------- ----------------- $0 10/31/2006 $73,177 12/31/2006 $0 10/31/2007 $58,964 12/31/2007 </Table> (b) <Table> <Caption> Audit-Related Fees Fiscal Year Ended - ------------------ ----------------- $0 10/31/2006 $0 12/31/2006 $0 10/31/2007 $0 12/31/2007 </Table> (c) <Table> <Caption> Tax Fees Fiscal Year Ended - -------- ----------------- $0 10/31/2006 $0 12/31/2006 $0 10/31/2007 $8,500 12/31/2007 </Table> (d) <Table> <Caption> All Other Fees Fiscal Year Ended - -------------- ----------------- $0 10/31/2006 $0 12/31/2006 $0 10/31/2007 $0 12/31/2007 </Table> (e)(1) Pursuant to its charter, the Trust's Audit and Compliance Committee shall have the following duties and powers pertaining to pre-approval of audit and non-audit services provided by the Trust's principal accountant: - to approve, prior to appointment, the engagement of auditors to annually audit and provide their opinion on the Trusts' financial statements, and, in connection therewith, reviewing and evaluating matters potentially affecting the independence and capabilities of the auditors; - to approve, prior to appointment, the engagement of the auditors to provide non-audit services to the Trusts, an investment adviser to any series of the Trusts or any entity controlling, controlled by, or under common control with an investment adviser ("adviser affiliate") that provides ongoing services to the Trusts, if the engagement relates directly to the operations and financial reporting of the Trusts; - to consider whether the non-audit services provided by a Trust's auditor to an investment adviser or any adviser affiliate that provides ongoing services to a series of the Trusts, which services were not pre-approved by the Committee, are compatible with maintaining the auditor's independence; - to review the arrangements for and scope of the annual audit and any special audits; and - to review and approving the fees proposed to be charged to the Trusts by the auditors for each audit and non-audit service. The Audit and Compliance Committee may delegate any portion of its authority, including the authority to grant pre-approvals of audit and permitted non-audit services, to a subcommittee of one or more members. Any decisions of the subcommittee to grant pre-approvals shall be presented to the full committee at its next regularly scheduled meeting. (e)(2) None of the fees disclosed in paragraphs (b) through (d) above were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. (f) Not applicable. (g) <Table> <Caption> Aggregate Non-Audit Fees for Services Rendered to the: - ------------------------------------------------------ Adviser's Affiliates Providing Registrant Adviser Ongoing Services to Registrant Fiscal Year Ended - ---------- ------- ------------------------------ ----------------- $0 $0 N/A 10/31/2006 $0 $0 N/A 12/31/2006 $0 $0 N/A 10/31/2007 $8,500 $0 N/A 12/31/2007 </Table> (h) Not applicable. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable. ITEM 6. SCHEDULE OF INVESTMENTS. The schedules of investments for the Money Market Portfolio, the Municipal Money Market Portfolio and the U.S. Government Money Market Portfolio of the American Beacon Master Trust are included in the American Beacon Funds shareholder report presented in Item 1. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. The Trust has made no material changes to the procedures by which shareholders may recommend nominees to the Trust's Board of Trustees since the Trust last disclosed such procedures in Schedule 14A. ITEM 11. CONTROLS AND PROCEDURES. (a) Based upon an evaluation within 90 days of the filing date of this report, the principal executive and financial officers concluded that the disclosure controls and procedures of the Trust are effective. (b) There were no changes in the Trust's internal control over financial reporting during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the Trust's internal control over financial reporting. ITEM 12. EXHIBITS. (a)(1) Filed herewith as EX-99.CODE ETH. (a)(2) A separate certification for each principal executive officer and principal financial officer of the Trust as required by Rule 30a-2(a) under the Investment Company Act of 1940 is attached hereto as EX-99.CERT. (a)(3) Not applicable. (b) The certifications required by Rule 30a-2(b) under the Investment Company Act of 1940 are attached hereto as EX-99.906CERT. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant): American Beacon Master Trust By /s/ Douglas G. Herring -------------------- Douglas G. Herring President Date: March 7, 2008 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/ Douglas G. Herring -------------------- Douglas G. Herring President Date: March 7, 2008 By /s/ Rebecca L. Harris --------------------- Rebecca L. Harris Treasurer Date: March 7, 2008