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 811-07885 Name of Fund: Master Mid Cap Index Series of Quantitative Master Series LLC Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive Officer, Master Mid Cap Index Series of Quantitative Master Series LLC, 800 Scudders Mill Road, Plainsboro, NJ 08536. Mailing address: P.O. Box 9011, Princeton, NJ 08543-9011 Registrant's telephone number, including area code: (800) 441-7762 Date of fiscal year end: 12/31/2007 Date of reporting period: 01/01/2007 - 12/31/2007 Item 1 - Report to Stockholders Master Mid Cap Index Series of Quantitative Master Series LLC Annual Report, December 31, 2007 PORTFOLIO MANAGEMENT COMMENTARY How did the Series perform? o For the fiscal year ended December 31, 2007, Master Mid Cap Index Series generated returns that were comparable to that of the benchmark Standard & Poor's (S&P(R)) MidCap 400 Index, a market-weighted index composed of 400 common stocks issued by mid-capitalization companies in a wide range of businesses, as each provided a +7.98% return. o Although the value of the S&P MidCap 400 Index fluctuated during the past 12 months, the portfolio's performance generally tracked that of the Index. What factors influenced performance? o In total, equity markets performed quite well in 2007. It was a year of intense market volatility, but still one that resulted in decent gains for most asset classes. Global equity markets benefited from a strong first half, which, in most cases, helped to generate positive performance for the year as a whole. In the U.S., the large-cap S&P 500(R) Index advanced 5.49%, while the small-cap S&P 600 Index lost .30%. Our mid-cap benchmark index outperformed both, with a return of +7.98%. Amid strong performance in the technology sector, the NASDAQ Composite posted an impressive +9.81% return for the year. o The annual period began much like 2006 ended, with some slowing in U.S. economic growth, a Federal Reserve Board (the "Fed") that remained on hold and a generally positive investment environment. Solid earnings growth and continued high levels of merger-and-acquisition activity allowed equities to move upward. o The second half of 2007 was vastly different, however. The benign fundamentals that dominated from 2003 to 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, question marks about the sustainability of the business cycle and rising food and energy prices. Reflecting these woes, U.S. government bond yields plummeted, the dollar's decline intensified, equities became volatile and trendless, and the Fed's focus shifted from inflation fighting to providing liquidity and reducing short-term interest rates in an effort to shore up the functioning of credit markets and fight economic weakness. Beginning in September, the Fed lowered the target federal funds rate by 100 basis points (1.00%), from 5.25% to 4.25%. Describe recent portfolio activity. o Throughout the period, as changes were made to the composition of the S&P MidCap 400 Index, the portfolio purchased and sold securities to maintain its objective of replicating the risks and return of the benchmark. Describe portfolio positioning at period-end. o In keeping with its investment objective, the portfolio remains positioned to match the risk characteristics of its benchmark, irrespective of the market's future direction. 1 Master Mid Cap Index Series Portfolio Information as of December 31, 2007 - -------------------------------------------------------------------------------- Percent of Long- Sector Representation Term Investments - -------------------------------------------------------------------------------- Industrials 15.6% Financials 15.5% Information Technology 14.8% Health Care 12.8% Consumer Discretionary 12.5% Energy 9.9% Utilities 7.9% Materials 7.1% Consumer Staples 3.2% Telecommunication Services 0.7% - -------------------------------------------------------------------------------- For Series compliance purposes, the Series' industry and sector classifications refer to any one or more of the industry and sector sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Series management. This definition may not apply for purposes of this report, which may combine industry and sector sub-classifications for reporting ease. 2 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- Aerospace & Defense - 0.9% 4,699 Alliant Techsystems, Inc. (a) $ 534,558 12,958 BE Aerospace, Inc. (a) 685,478 5,700 DRS Technologies, Inc. 309,339 ------------- 1,529,375 - ----------------------------------------------------------------------------------------------------------------------------------- Airlines - 0.2% 11,800 AirTran Holdings, Inc. (a) 84,488 5,524 Alaska Air Group, Inc. (a) 138,155 25,262 JetBlue Airways Corp. (a)(b) 149,046 ------------- 371,689 - ----------------------------------------------------------------------------------------------------------------------------------- Auto Components - 1.0% 10,045 ArvinMeritor, Inc. 117,828 16,210 BorgWarner, Inc. 784,726 20,027 Gentex Corp. 355,880 10,711 Lear Corp. (a) 296,266 4,121 Modine Manufacturing Co. 68,038 ------------- 1,622,738 - ----------------------------------------------------------------------------------------------------------------------------------- Automobiles - 0.1% 4,862 Thor Industries, Inc. 184,805 - ----------------------------------------------------------------------------------------------------------------------------------- Beverages - 0.4% 8,400 Hansen Natural Corp. (a) 372,036 8,007 PepsiAmericas, Inc. 266,793 ------------- 638,829 - ----------------------------------------------------------------------------------------------------------------------------------- Biotechnology - 1.2% 9,330 Cephalon, Inc. (a) 669,521 44,552 Millennium Pharmaceuticals, Inc. (a) 667,389 16,288 PDL BioPharma, Inc. (a) 285,366 18,354 Vertex Pharmaceuticals, Inc. (a) 426,363 ------------- 2,048,639 - ----------------------------------------------------------------------------------------------------------------------------------- Capital Markets - 1.5% 17,185 Eaton Vance Corp. 780,371 15,072 Jefferies Group, Inc. New Shares 347,410 13,154 Raymond James Financial, Inc. 429,610 17,252 SEI Investments Co. 554,997 11,651 Waddell & Reed Financial, Inc. Class A 420,485 ------------- 2,532,873 - ----------------------------------------------------------------------------------------------------------------------------------- Chemicals - 3.6% 11,186 Airgas, Inc. 582,902 11,062 Albemarle Corp. 456,307 6,660 CF Industries Holdings, Inc. 733,000 9,211 Cabot Corp. 307,095 32,593 Chemtura Corp. 254,225 5,889 Cytec Industries, Inc. 362,645 10,624 FMC Corp. 579,539 5,581 Ferro Corp. 115,694 9,649 Lubrizol Corp. 522,590 2,687 Minerals Technologies, Inc. 179,895 10,348 Olin Corp. 200,027 16,324 RPM International, Inc. 331,377 6,166 The Scotts Miracle-Gro Co. 230,732 6,624 Sensient Technologies Corp. 187,327 12,790 Terra Industries, Inc. (a) 610,850 14,036 Valspar Corp. 316,371 ------------- 5,970,576 - ----------------------------------------------------------------------------------------------------------------------------------- Commercial Banks - 2.5% 17,726 Associated Banc-Corp. 480,197 6,931 Bank of Hawaii Corp. 354,451 7,000 Cathay General Bancorp 185,430 5,587 City National Corp. 332,706 See Notes to Financial Statements. 3 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 21,400 The Colonial BancGroup, Inc. $ 289,756 8,262 Cullen/Frost Bankers, Inc. 418,553 3,770 First Community Bancorp, Inc. 155,475 11,329 FirstMerit Corp. 226,693 4,850 SVB Financial Group (a) 244,440 45,270 Synovus Financial Corp. (a) 461,301 15,265 TCF Financial Corp. 273,701 7,664 Webster Financial Corp. 245,018 4,164 Westamerica Bancorp (b) 185,506 9,483 Wilmington Trust Corp. 333,802 ------------- 4,187,029 - ----------------------------------------------------------------------------------------------------------------------------------- Commercial Services & 6,761 The Brink's Co. 403,902 Supplies - 3.3% 10,270 ChoicePoint, Inc. (a) 374,033 9,788 Copart, Inc. (a) 416,479 5,025 Corporate Executive Board Co. 302,003 7,014 Deluxe Corp. 230,690 8,164 Dun & Bradstreet Corp. 723,575 6,618 HNI Corp. (b) 232,027 8,642 Herman Miller, Inc. 279,914 2,781 Kelly Services, Inc. Class A 51,893 6,539 Korn/Ferry International (a) 123,064 11,398 Manpower, Inc. 648,546 4,100 Mine Safety Appliances Co. 212,667 5,830 Navigant Consulting, Inc. (a) 79,696 22,716 Republic Services, Inc. Class A 712,147 5,359 Rollins, Inc. 102,893 12,210 Stericycle, Inc. (a) 725,274 ------------- 5,618,803 - ----------------------------------------------------------------------------------------------------------------------------------- Communications Equipment - 2.3% 53,481 3Com Corp. (a) 241,734 16,408 ADC Telecommunications, Inc. (a) 255,144 8,557 Adtran, Inc. 182,949 7,083 Avocent Corp. (a) 165,105 9,266 CommScope, Inc. (a) 455,958 5,402 Dycom Industries, Inc. (a) 143,963 11,750 F5 Networks, Inc. (a) 335,110 20,000 Foundry Networks, Inc. (a) 350,400 19,139 Harris Corp. 1,199,633 6,718 Plantronics, Inc. 174,668 12,782 Polycom, Inc. (a) 355,084 ------------- 3,859,748 - ----------------------------------------------------------------------------------------------------------------------------------- Computers & Peripherals - 1.2% 9,224 Diebold, Inc. 267,312 4,799 Imation Corp. 100,779 25,140 NCR Corp. (a) 631,014 14,600 Palm, Inc. (b) 92,564 30,600 Western Digital Corp. (a) 924,426 ------------- 2,016,095 - ----------------------------------------------------------------------------------------------------------------------------------- Construction & Engineering - 1.4% 4,881 Granite Construction, Inc. 176,595 23,610 KBR, Inc. (a) 916,068 23,443 Quanta Services, Inc. (a) 615,144 11,300 URS Corp. (a) 613,929 ------------- 2,321,736 - ----------------------------------------------------------------------------------------------------------------------------------- See Notes to Financial Statements. 4 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- Construction Materials - 0.5% 5,803 Martin Marietta Materials, Inc. (b) $ 769,478 - ----------------------------------------------------------------------------------------------------------------------------------- Consumer Finance - 0.2% 15,906 AmeriCredit Corp. (a)(b) 203,438 11,600 MoneyGram International, Inc. 178,292 ------------- 381,730 - ----------------------------------------------------------------------------------------------------------------------------------- Containers & Packaging - 0.7% 12,988 Packaging Corp. of America 366,262 13,520 Sonoco Products Co. 441,834 14,040 Temple-Inland, Inc. 292,734 ------------- 1,100,830 - ----------------------------------------------------------------------------------------------------------------------------------- Diversified Consumer Services - 12,748 Career Education Corp. (a) 320,485 1.7% 11,838 Corinthian Colleges, Inc. (a) 182,305 8,274 DeVry, Inc. 429,917 4,124 ITT Educational Services, Inc. (a) 351,653 4,120 Matthews International Corp. Class A 193,104 6,162 Regis Corp. 172,290 39,900 Service Corp. International 560,595 9,275 Sotheby's Holdings, Inc. Class A 353,378 2,050 Strayer Education, Inc. 349,689 ------------- 2,913,416 - ----------------------------------------------------------------------------------------------------------------------------------- Diversified Telecommunication 33,839 Cincinnati Bell, Inc. (a) 160,735 Services - 0.1% - ----------------------------------------------------------------------------------------------------------------------------------- Electric Utilities - 1.7% 15,799 DPL, Inc. 468,440 11,986 Great Plains Energy, Inc. 351,430 11,576 Hawaiian Electric Industries, Inc. 263,586 6,218 IDACORP, Inc. 218,998 21,616 Northeast Utilities Inc. 676,797 31,718 Sierra Pacific Resources 538,572 12,823 Westar Energy, Inc. 332,629 ------------- 2,850,452 - ----------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 1.3% 14,577 Ametek, Inc. 682,787 8,280 Hubbell, Inc. Class B 427,248 12,300 Roper Industries, Inc. 769,242 7,127 Thomas & Betts Corp. (a) 349,508 ------------- 2,228,785 - ----------------------------------------------------------------------------------------------------------------------------------- Electronic Equipment & 24,800 Amphenol Corp. Class A 1,149,976 Instruments - 2.3% 17,213 Arrow Electronics, Inc. (a) 676,127 20,913 Avnet, Inc. (a) 731,328 20,400 Ingram Micro, Inc. Class A (a) 368,016 11,783 Kemet Corp. (a) 78,121 7,586 National Instruments Corp. 252,841 7,770 Tech Data Corp. (a) 293,084 25,910 Vishay Intertechnology, Inc. (a) 295,633 ------------- 3,845,126 - ----------------------------------------------------------------------------------------------------------------------------------- Energy Equipment & Services - 30,496 Cameron International Corp. (a) 1,467,772 4.1% 9,127 Exterran Holdings, Inc. (a) 746,589 18,076 FMC Technologies, Inc. (a) 1,024,909 17,885 Grant Prideco, Inc. (a) 992,796 14,122 Helmerich & Payne, Inc. 565,869 21,887 Patterson-UTI Energy, Inc. 427,234 23,267 Pride International, Inc. (a) 788,751 11,360 Superior Energy Services, Inc. (a) 391,011 See Notes to Financial Statements. 5 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 7,401 Tidewater, Inc. $ 406,019 ------------- 6,810,950 - ----------------------------------------------------------------------------------------------------------------------------------- Food & Staples Retailing - 0.3% 9,045 BJ's Wholesale Club, Inc. (a) 305,992 5,140 Ruddick Corp. 178,204 ------------- 484,196 - ----------------------------------------------------------------------------------------------------------------------------------- Food Products - 1.1% 10,390 Corn Products International, Inc. 381,833 9,779 Hormel Foods Corp. 395,854 8,020 The J.M. Smucker Co. 412,549 2,761 Lancaster Colony Corp. 109,612 16,280 Smithfield Foods, Inc. (a) 470,818 3,236 Tootsie Roll Industries, Inc. 88,731 ------------- 1,859,397 - ----------------------------------------------------------------------------------------------------------------------------------- Gas Utilities - 2.0% 10,818 AGL Resources, Inc. 407,189 10,000 Energen Corp. 642,300 16,915 Equitable Resources, Inc. 901,231 11,608 National Fuel Gas Co. 541,861 14,472 Oneok, Inc. 647,911 6,948 WGL Holdings, Inc. 227,616 ------------- 3,368,108 - ----------------------------------------------------------------------------------------------------------------------------------- Health Care Equipment & 8,469 Advanced Medical Optics, Inc. (a) 207,744 Supplies - 4.3% 8,633 Beckman Coulter, Inc. 628,482 21,110 Dentsply International, Inc. 950,372 7,995 Edwards Lifesciences Corp. (a) 367,690 7,375 Gen-Probe, Inc. (a) 464,109 8,655 Hillenbrand Industries, Inc. 482,343 17,459 Hologic, Inc. (a) 1,198,386 5,325 Intuitive Surgical, Inc. (a) 1,727,963 7,500 Kinetic Concepts, Inc. (a) 401,700 10,800 ResMed, Inc. (a) 567,324 9,094 Steris Corp. 262,271 ------------- 7,258,384 - ----------------------------------------------------------------------------------------------------------------------------------- Health Care Providers & Services 6,142 Apria Healthcare Group, Inc. (a) 132,483 - - 2.9% 13,406 Community Health Systems, Inc. (a) 494,145 33,830 Health Management Associates, Inc. Class A 202,303 15,313 Health Net, Inc. (a) 739,618 12,478 Henry Schein, Inc. (a) 766,149 4,230 Kindred Healthcare, Inc. (a) 105,665 8,133 LifePoint Hospitals, Inc. (a) 241,875 11,163 Lincare Holdings, Inc. (a) 392,491 16,950 Omnicare, Inc. (b) 386,630 7,600 Psychiatric Solutions, Inc. (a) 247,000 7,577 Universal Health Services, Inc. Class B 387,942 11,750 VCA Antech, Inc. (a) 519,703 5,830 WellCare Health Plans, Inc. (a) 247,250 ------------- 4,863,254 - ----------------------------------------------------------------------------------------------------------------------------------- Health Care Technology - 0.3% 9,190 Cerner Corp. (a) 518,316 - ----------------------------------------------------------------------------------------------------------------------------------- Hotels, Restaurants & Leisure - 4,955 Bob Evans Farms, Inc. 133,438 1.5% 7,820 Boyd Gaming Corp. 266,427 14,725 Brinker International, Inc. 288,021 3,454 CBRL Group, Inc. 111,875 10,132 The Cheesecake Factory, Inc. (a) 240,230 See Notes to Financial Statements. 6 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 4,560 Chipotle Mexican Grill, Inc. Class A (a)(b) $ 670,639 3,964 International Speedway Corp. Class A 163,238 4,690 Life Time Fitness, Inc. (a) 232,999 7,143 Ruby Tuesday, Inc. 69,644 9,100 Scientific Games Corp. Class A (a) 302,575 ------------- 2,479,086 - ----------------------------------------------------------------------------------------------------------------------------------- Household Durables - 1.4% 7,782 American Greetings Corp. Class A 157,975 3,624 Blyth, Inc. 79,511 6,701 Furniture Brands International, Inc. 67,412 5,233 Hovnanian Enterprises, Inc. Class A (a)(b) 37,521 4,900 MDC Holdings, Inc. 181,937 7,530 Mohawk Industries, Inc. (a) 560,232 750 NVR, Inc. (a) 393,000 5,917 Ryland Group, Inc. 163,013 17,677 Toll Brothers, Inc. (a)(b) 354,601 8,645 Tupperware Corp. 285,544 ------------- 2,280,746 - ----------------------------------------------------------------------------------------------------------------------------------- Household Products - 0.8% 9,143 Church & Dwight Co., Inc. 494,362 7,970 Energizer Holdings, Inc. (a) 893,676 ------------- 1,388,038 - ----------------------------------------------------------------------------------------------------------------------------------- IT Services - 2.2% 9,199 Acxiom Corp. 107,904 10,981 Alliance Data Systems Corp. (a) 823,465 19,030 Broadridge Financial Solutions LLC 426,843 5,358 CSG Systems International, Inc. (a) 78,870 7,057 DST Systems, Inc. (a) 582,555 9,727 Gartner, Inc. Class A (a) 170,806 10,970 Global Payments, Inc. 510,324 13,288 MPS Group, Inc. (a) 145,371 12,230 Metavante Technologies, Inc. (a) 285,204 10,690 NeuStar, Inc. Class A (a) 306,589 5,900 SRA International, Inc. Class A (a) 173,755 ------------- 3,611,686 - ----------------------------------------------------------------------------------------------------------------------------------- Industrial Conglomerates - 0.4% 8,742 Carlisle Cos., Inc. 323,716 5,552 Teleflex, Inc. 349,832 ------------- 673,548 - ----------------------------------------------------------------------------------------------------------------------------------- Insurance - 3.8% 10,474 American Financial Group, Inc. 302,489 13,361 Arthur J. Gallagher & Co. 323,203 15,310 Brown & Brown, Inc. (f) 359,785 5,940 Commerce Group, Inc. 213,721 8,830 Everest Re Group Ltd. 886,532 29,768 Fidelity National Title Group, Inc. Class A 434,910 13,029 First American Corp. 444,549 15,699 HCC Insurance Holdings, Inc. 450,247 6,930 The Hanover Insurance Group, Inc. 317,394 6,100 Horace Mann Educators Corp. 115,534 4,650 Mercury General Corp. 231,617 32,301 Old Republic International Corp. 497,758 9,470 Protective Life Corp. 388,459 6,962 Stancorp Financial Group, Inc. 350,746 See Notes to Financial Statements. 7 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 6,964 Unitrin, Inc. $ 334,202 21,966 W.R. Berkley Corp. 654,806 ------------- 6,305,952 - ----------------------------------------------------------------------------------------------------------------------------------- Internet & Catalog Retail - 0.1% 6,940 NetFlix, Inc. (a)(b) 184,743 - ----------------------------------------------------------------------------------------------------------------------------------- Internet Software & Services - 0.3% 5,600 Digital River, Inc. (a) 185,192 13,970 ValueClick, Inc. (a) 305,943 ------------- 491,135 - ----------------------------------------------------------------------------------------------------------------------------------- Leisure Equipment & Products - 0.1% 9,410 Callaway Golf Co. 164,016 - ----------------------------------------------------------------------------------------------------------------------------------- Life Sciences Tools & Services - 9,600 Affymetrix, Inc. (a) 222,144 2.3% 9,474 Charles River Laboratories International, Inc. (a) 623,389 8,918 Covance, Inc. (a) 772,477 6,475 Invitrogen Corp. (a) 604,830 14,600 Pharmaceutical Product Development, Inc. 589,402 5,525 Techne Corp. (a) 364,926 4,221 Varian, Inc. (a) 275,631 4,060 Ventana Medical Systems, Inc. (a) 354,154 ------------- 3,806,953 - ----------------------------------------------------------------------------------------------------------------------------------- Machinery - 5.2% 12,705 AGCO Corp. (a) 863,686 7,091 Crane Co. 304,204 9,605 Donaldson Co., Inc. 445,480 6,700 Federal Signal Corp. 75,174 7,914 Flowserve Corp. 761,327 9,083 Graco, Inc. 338,433 11,724 Harsco Corp. 751,157 11,160 IDEX Corp. 403,211 15,062 Joy Global, Inc. 991,381 10,800 Kennametal, Inc. 408,888 5,800 Lincoln Electric Holdings, Inc. 412,844 4,499 Nordson Corp. 260,762 10,300 Oshkosh Truck Corp. 486,778 13,954 Pentair, Inc. 485,739 7,410 SPX Corp. 762,119 12,975 Timken Co. 426,229 11,303 Trinity Industries, Inc. 313,771 6,810 Westinghouse Air Brake Technologies Corp. 234,536 ------------- 8,725,719 - ----------------------------------------------------------------------------------------------------------------------------------- Marine - 0.2% 6,021 Alexander & Baldwin, Inc. 311,045 - ----------------------------------------------------------------------------------------------------------------------------------- Media - 1.0% 12,326 Belo Corp. Class A 214,965 3,845 Entercom Communications Corp. 52,638 6,680 Getty Images, Inc. (a) 193,720 7,017 Harte-Hanks, Inc. 121,394 5,950 John Wiley & Sons, Inc. Class A 254,898 11,300 Lamar Advertising Co. Class A 543,191 5,062 Lee Enterprises, Inc. 74,158 3,231 Media General, Inc. Class A 68,659 3,705 Scholastic Corp. (a) 129,267 6,667 Valassis Communications, Inc. (a) 77,937 ------------- 1,730,827 - ----------------------------------------------------------------------------------------------------------------------------------- Metals & Mining - 1.8% 6,960 Carpenter Technology Corp. 523,183 5,770 Cleveland-Cliffs, Inc. 581,616 16,700 Commercial Metals Co. 491,815 9,200 Reliance Steel & Aluminum Co. 498,640 See Notes to Financial Statements. 8 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 13,600 Steel Dynamics, Inc. $ 810,152 9,627 Worthington Industries, Inc. 172,131 ------------- 3,077,537 - ----------------------------------------------------------------------------------------------------------------------------------- Multi-Utilities - 3.5% 15,613 Alliant Energy Corp. 635,293 49,135 Aquila, Inc. (a) 183,273 5,274 Black Hills Corp. 232,583 21,581 Energy East Corp. 587,219 24,928 MDU Resources Group, Inc. 688,262 14,879 NSTAR 538,917 12,819 OGE Energy Corp. 465,202 10,774 PNM Resources, Inc. 231,102 15,805 Puget Energy, Inc. 433,531 16,216 SCANA Corp. 683,504 10,726 Vectren Corp. 311,161 16,329 Wisconsin Energy Corp. 795,386 ------------- 5,785,433 - ----------------------------------------------------------------------------------------------------------------------------------- Multiline Retail - 0.5% 6,576 99 Cents Only Stores (a) 52,345 13,013 Dollar Tree Stores, Inc. (a) 337,297 19,971 Saks, Inc. (a) 414,598 ------------- 804,240 - ----------------------------------------------------------------------------------------------------------------------------------- Office Electronics - 0.2% 9,696 Zebra Technologies Corp. Class A (a) 336,451 - ----------------------------------------------------------------------------------------------------------------------------------- Oil, Gas & Consumable Fuels - 19,910 Arch Coal, Inc. 894,556 5.2% 4,680 Bill Barrett Corp. (a) 195,952 11,600 Cimarex Energy Co. 493,348 34,000 Denbury Resources, Inc. (a) 1,011,500 7,420 Encore Acquisition Co. (a) 247,605 12,307 Forest Oil Corp. (a) 625,688 14,900 Frontier Oil Corp. 604,642 18,215 Newfield Exploration Co. (a) 959,931 3,974 Overseas Shipholding Group, Inc. 295,785 16,854 Pioneer Natural Resources Co. 823,149 15,667 Plains Exploration & Production Co. (a) 846,018 7,100 Quicksilver Resources, Inc. (a) 423,089 23,700 Southwestern Energy Co. (a) 1,320,564 ------------- 8,741,827 - ----------------------------------------------------------------------------------------------------------------------------------- Paper & Forest Products - 0.1% 14,610 Louisiana-Pacific Corp. 199,865 - ----------------------------------------------------------------------------------------------------------------------------------- Personal Products - 0.3% 11,800 Alberto-Culver Co. 289,572 7,900 NBTY, Inc. (a) 216,460 ------------- 506,032 - ----------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 1.1% 18,680 Endo Pharmaceuticals Holdings, Inc. (a) 498,196 7,800 Medicis Pharmaceutical Corp. Class A 202,566 4,983 Par Pharmaceutical Cos., Inc. (a) 119,592 10,883 Perrigo Co. 381,014 15,270 Sepracor, Inc. (a) 400,838 12,773 Valeant Pharmaceuticals International (a) 152,893 ------------- 1,755,099 - ----------------------------------------------------------------------------------------------------------------------------------- Real Estate Investment Trusts 13,896 AMB Property Corp. 799,854 (REITs) - 5.2% 4,450 Alexandria Real Estate Equities, Inc. 452,432 7,100 BRE Properties 287,763 See Notes to Financial Statements. 9 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 7,800 Camden Property Trust $ 375,570 5,290 Cousins Properties, Inc. 116,909 20,110 Duke Realty Corp. 524,469 4,560 Equity One, Inc. 105,017 8,000 Federal Realty Investment Trust 657,200 11,500 Health Care REIT, Inc. 513,935 7,964 Highwoods Properties, Inc. 233,982 13,110 Hospitality Properties Trust 422,404 12,698 Liberty Property Trust 365,829 10,000 The Macerich Co. 710,600 9,465 Mack-Cali Realty Corp. 321,810 12,730 Nationwide Health Properties, Inc. 399,340 5,463 Potlatch Corp. 242,776 10,816 Rayonier, Inc. 510,948 14,100 Realty Income Corp. 380,982 9,725 Regency Centers Corp. 627,165 18,775 UDR, Inc. 372,684 10,775 Weingarten Realty Investors 338,766 ------------- 8,760,435 - ----------------------------------------------------------------------------------------------------------------------------------- Real Estate Management & 5,020 Jones Lang LaSalle, Inc. 357,223 Development - 0.2% - ----------------------------------------------------------------------------------------------------------------------------------- Road & Rail - 0.8% 14,560 Avis Budget Group, Inc. (a) 189,280 6,395 Con-way, Inc. 265,648 12,196 J.B. Hunt Transport Services, Inc. 336,000 10,400 Kansas City Southern (a) 357,032 6,533 Werner Enterprises, Inc. 111,257 8,106 YRC Worldwide, Inc. (a) 138,532 ------------- 1,397,749 - ----------------------------------------------------------------------------------------------------------------------------------- Semiconductors & Semiconductor 62,570 Atmel Corp. (a) 270,302 Equipment - 2.6% 11,843 Cree, Inc. (a)(b) 325,327 22,127 Cypress Semiconductor Corp. (a) 797,236 17,407 Fairchild Semiconductor International, Inc. (a) 251,183 27,320 Integrated Device Technology, Inc. (a) 308,989 10,124 International Rectifier Corp. (a) 343,912 18,563 Intersil Corp. Class A 454,422 18,759 Lam Research Corp. (a) 810,952 40,171 RF Micro Devices, Inc. (a) 229,376 8,907 Semtech Corp. (a) 138,237 7,664 Silicon Laboratories, Inc. (a) 286,864 19,445 TriQuint Semiconductor, Inc. (a) 128,920 ------------- 4,345,720 - ----------------------------------------------------------------------------------------------------------------------------------- Software - 2.9% 5,121 ACI Worldwide, Inc. (a) 97,504 40,521 Activision, Inc. (a)(f) 1,203,474 2,500 Advent Software, Inc. (a) 135,250 38,029 Cadence Design Systems, Inc. (a) 646,873 7,326 Fair Isaac Corp. 235,531 11,017 Jack Henry & Associates, Inc. 268,154 7,702 Macrovision Corp. (a) 141,178 22,237 McAfee, Inc. (a) 833,888 11,743 Mentor Graphics Corp. (a) 126,590 16,000 Parametric Technology Corp. (a) 285,600 See Notes to Financial Statements. 10 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Shares Industry Held Common Stocks Value - ----------------------------------------------------------------------------------------------------------------------------------- 12,739 Sybase, Inc. (a) $ 332,361 19,769 Synopsys, Inc. (a) 512,610 10,483 Wind River Systems, Inc. (a) 93,613 ------------- 4,912,626 - ----------------------------------------------------------------------------------------------------------------------------------- Specialty Retail - 3.8% 13,975 Advance Auto Parts, Inc. 530,910 9,550 Aeropostale, Inc. (a) 253,075 29,327 American Eagle Outfitters, Inc. 609,122 8,200 AnnTaylor Stores Corp. (a) 209,592 6,976 Barnes & Noble, Inc. 240,323 8,183 Borders Group, Inc. 87,149 30,322 Carmax, Inc. (a)(b)(f) 598,860 17,200 Charming Shoppes, Inc. (a) 93,052 23,784 Chico's FAS, Inc. (a) 214,770 8,700 Coldwater Creek, Inc. (a) 58,203 9,145 Collective Brands, Inc. (a) 159,032 11,540 Dick's Sporting Goods, Inc. (a) 320,350 21,425 Foot Locker, Inc. 292,666 7,600 Guess?, Inc. 287,964 15,623 O'Reilly Automotive, Inc. (a) 506,654 9,773 Pacific Sunwear of California, Inc. (a) 137,897 18,341 PetSmart, Inc. 431,564 9,682 Rent-A-Center, Inc. (a) 140,583 19,081 Ross Stores, Inc. 487,901 15,375 Urban Outfitters, Inc. (a) 419,123 11,869 Williams-Sonoma, Inc. 307,407 ------------- 6,386,197 - ----------------------------------------------------------------------------------------------------------------------------------- Textiles, Apparel & Luxury Goods 12,900 Hanesbrands, Inc. (a) 350,493 - - 0.6% 7,870 Phillips-Van Heusen Corp. 290,088 6,586 The Timberland Co. Class A (a) 119,075 6,310 The Warnaco Group, Inc. (a) 219,588 ------------- 979,244 - ----------------------------------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance - 1.1% 11,529 Astoria Financial Corp. 268,280 14,700 First Niagara Financial Group, Inc. 176,988 9,651 IndyMac Bancorp, Inc. (b) 57,423 44,988 New York Community Bancorp, Inc. 790,889 11,229 The PMI Group, Inc. 149,121 11,261 Radian Group, Inc. (b) 131,528 12,213 Washington Federal, Inc. 257,816 ------------- 1,832,045 - ----------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.1% 3,852 Universal Corp. 197,299 - ----------------------------------------------------------------------------------------------------------------------------------- Trading Companies & Distributors 17,602 Fastenal Co. 711,473 - - 0.8% 6,695 GATX Corp. 245,573 6,600 MSC Industrial Direct Co. Class A 267,102 10,199 United Rentals, Inc. (a) 187,254 ------------- 1,411,402 - ----------------------------------------------------------------------------------------------------------------------------------- Water Utilities - 0.2% 18,501 Aqua America, Inc. (b) 392,221 - ----------------------------------------------------------------------------------------------------------------------------------- Wireless Telecommunication 9,258 Telephone & Data Systems, Inc. 579,551 Services - 0.5% 5,583 Telephone & Data Systems, Inc. (Special Shares) 321,581 ------------- 901,132 - ----------------------------------------------------------------------------------------------------------------------------------- Total Common Stocks (Cost - $129,990,566) - 93.9% 157,549,363 - ----------------------------------------------------------------------------------------------------------------------------------- See Notes to Financial Statements. 11 Master Mid Cap Index Series Schedule of Investments as of December 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------------- Beneficial Industry Interest Short-Term Securities Value - ----------------------------------------------------------------------------------------------------------------------------------- $ 10,256,436 BlackRock Liquidity Series, LLC Cash Sweep Series, 5.04% (c)(d) $ 10,256,436 4,038,850 BlackRock Liquidity Series, LLC Money Market Series, 4.78% (c)(d)(e) 4,038,850 - ----------------------------------------------------------------------------------------------------------------------------------- Total Short-Term Securities (Cost - $14,295,286) -8.5% 14,295,286 - ----------------------------------------------------------------------------------------------------------------------------------- Total Investments (Cost - $144,285,852*) - 102.4% 171,844,649 Liabilities in Excess of Other Assets - (2.4%) (4,098,201) ------------- Net Assets - 100.0% $ 167,746,448 ============= * The cost and unrealized appreciation (depreciation) of investments as of December 31, 2007, as computed for federal income tax purposes, were as follows: Aggregate cost $ 145,335,060 ============= Gross unrealized appreciation $ 35,055,187 Gross unrealized depreciation (8,545,598) ------------- Net unrealized appreciation $ 26,509,589 ============= (a) Non-income producing security. (b) Security, or a portion of security, is on loan. (c) Investments in companies considered to be an affiliate of the Series, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: ---------------------------------------------------------------------------------------------------------- Affiliate Net Activity Interest Income ---------------------------------------------------------------------------------------------------------- BlackRock Liquidity Series, LLC Cash Sweep Series $ 1,250,499 $ 783,769 BlackRock Liquidity Series, LLC Money Market Series $ 2,610,350 $ 32,410 ---------------------------------------------------------------------------------------------------------- (d) Represents the current yield as of December 31, 2007. (e) Security was purchased with the cash proceeds from securities loans. (f) All or a portion of security held as collateral in connection with open financial futures contracts. o For Series compliance purposes, the Series' industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Series management. This definition may not apply for purposes of this report, which may combine industry sub-classifications for reporting ease. Industries are shown as a percent of net assets. These industry classifications are unaudited. o Financial futures contracts purchased as of December 31, 2007 were as follows: ----------------------------------------------------------------------------------------------------- Unrealized Number of Contracts Issue Expiration Date Face Value Appreciation ----------------------------------------------------------------------------------------------------- 23 S&P 400 MidCap Index March 2008 $ 9,894,912 $ 50,288 ----------------------------------------------------------------------------------------------------- 12 Master Mid Cap Index Series STATEMENT OF ASSETS AND LIABILITIES As of December 31, 2007 - ------------------------------------------------------------------------------------------------------------------------ Assets: Investments in unaffiliated securities, at value (including securities loaned of $3,897,462) (identified cost - $129,990,566) ........................... $157,549,363 Investments in affiliated securities, at value (identified cost - $14,295,286) 14,295,286 Cash ......................................................................... 12 Receivables: Securities sold ..................................................... $ 708,004 Contributions ....................................................... 400,835 Dividends ........................................................... 105,828 Securities lending .................................................. 6,889 1,221,556 --------- Prepaid expenses ............................................................. 4,049 ------------ Total assets ................................................................. 173,070,266 ------------ - ------------------------------------------------------------------------------------------------------------------------ Liabilities: Collateral on securities loaned, at value .................................... 4,038,850 Payables: Securities purchased ................................................ 1,077,518 Withdrawals ......................................................... 146,210 Variation margin .................................................... 41,400 Investment adviser .................................................. 1,419 Other affiliates .................................................... 1,318 1,267,865 --------- Accrued expenses and other liabilities ....................................... 17,103 ------------ Total liabilities ............................................................ 5,323,818 ------------ Net Assets: Net assets ................................................................... $167,746,448 ============ - ------------------------------------------------------------------------------------------------------------------------ Net Assets Investors' capital ........................................................... $140,137,363 Consist of: Unrealized appreciation-net .................................................. 27,609,085 ------------ Net assets ................................................................... $167,746,448 ============ See Notes to Financial Statements. 13 Master Mid Cap Index Series STATEMENT OF OPERATIONS For the Year Ended December 31, 2007 - -------------------------------------------------------------------------------------------------------- Investment Dividends .......................................... $ 1,519,329 Income: Interest from affiliates ........................... 783,769 Securities lending-net ............................. 32,410 ----------- Total income ....................................... 2,335,508 ----------- - -------------------------------------------------------------------------------------------------------- Expenses: Professional fees .................................. $ 41,862 Accounting services ................................ 41,177 Custodian fees ..................................... 23,550 Investment advisory fees ........................... 14,695 Licensing fees ..................................... 10,000 Directors' fees and expenses ....................... 5,905 Printing and shareholder reports ................... 4,564 Pricing fees ....................................... 143 Other .............................................. 6,395 ------------ Total expenses ..................................... 148,291 ----------- Investment income-net .............................. 2,187,217 ----------- - -------------------------------------------------------------------------------------------------------- Realized & Unrealized Realized gain on: Gain (Loss) - Net: Investments-net ............................... 11,057,926 Financial futures contracts-net ............... 885,166 11,943,092 ------------ Change in unrealized appreciation/depreciation on: Investments-net ............................... (5,098,378) Financial futures contracts-net ............... 183,607 (4,914,771) ------------ ----------- Total realized and unrealized gain-net ............. 7,028,321 ----------- Net Increase in Net Assets Resulting from Operations $ 9,215,538 =========== See Notes to Financial Statements. 14 Master Mid Cap Index Series STATEMENTS OF CHANGES IN NET ASSETS For the Year Ended December 31, Increase (Decrease) in Net Assets: 2007 2006 - ------------------------------------------------------------------------------------------------------------------------ Operations: Investment income-net .................................................. $ 2,187,217 $ 2,025,276 Realized gain-net ...................................................... 11,943,092 16,266,960 Change in unrealized appreciation/depreciation-net ..................... (4,914,771) (4,770,657) ------------- ------------- Net increase in net assets resulting from operations ................... 9,215,538 13,521,579 ------------- ------------- - ------------------------------------------------------------------------------------------------------------------------ Capital Proceeds from contributions ............................................ 84,515,341 114,776,687 Transactions: Fair value of withdrawals .............................................. (46,348,953) (158,466,451) ------------- ------------- Net increase (decrease) in net assets derived from capital transactions. 38,166,388 (43,689,764) ------------- ------------- - ------------------------------------------------------------------------------------------------------------------------ Net Assets: Total increase (decrease) in net assets ................................ 47,381,926 (30,168,185) Beginning of year ...................................................... 120,364,522 150,532,707 ------------- ------------- End of year ............................................................ $ 167,746,448 $ 120,364,522 ============= ============= See Notes to Financial Statements. 15 Master Mid Cap Index Series FINANCIAL HIGHLIGHTS - ------------------------------------------------------------------------------------------------------------------------------- The following ratios have been derived from information provided For the Year Ended December 31, in the financial statements. 2007 2006 2005 2004 2003 - ------------------------------------------------------------------------------------------------------------------------------- Total Investment Return: 7.98% 10.30% 12.56% 16.41% 35.53% =========== =========== =========== =========== =========== - ------------------------------------------------------------------------------------------------------------------------------- Ratios to Expenses, net of reimbursement ........ .10% .09% .08% .09% .17% =========== =========== =========== =========== =========== Average Net Expenses .............................. .10% .09% .08% .09% .17% =========== =========== =========== =========== =========== Assets: Investment income-net ................. 1.49% 1.61% 1.50% 1.12% 1.06% =========== =========== =========== =========== =========== - ------------------------------------------------------------------------------------------------------------------------------- Supplemental Net assets, end of year (in thousands). $ 167,746 $ 120,365 $ 150,533 $ 179,289 $ 83,858 =========== =========== =========== =========== =========== Data: Portfolio turnover .................... 23% 28% 23% 17% 8% =========== =========== =========== =========== =========== See Notes to Financial Statements. 16 Master Mid Cap Index Series NOTES TO FINANCIAL STATEMENTS 1. Significant Accounting Policies: Master Mid Cap Index Series (the "Series"), a non-diversified management investment company, is part of Quantitative Master Series LLC (the "Master LLC"). The Master LLC is registered under the Investment Company Act of 1940, as amended, and is organized as a Delaware limited liability company. Prior to June 15, 2007, the Master LLC was organized as a Delaware statutory trust (the "Trust"). The Master LLC's Limited Liability Company Agreement permits the Directors (and prior to June 15, 2007, the Declaration of Trust permitted the Trustees) to issue non-transferable interests in the Series subject to certain limitations. Throughout this report the Trust and the Master LLC are referred to as the Master LLC and the Board of Trustees of the Trust and the Board of Directors of the Master LLC are referred to as the Board of Directors. The Series' financial statements are prepared in conformity with U.S. generally accepted accounting principles, which may require the use of management accruals and estimates. Actual results may differ from these estimates. All such adjustments are of a normal, recurring nature. The following is a summary of significant accounting policies followed by the Series. (a) Valuation of investments - Equity securities held by the Series that are traded on stock exchanges or the NASDAQ Global Market are valued at the last sale price or official close price on the exchange, as of the close of business on the day the securities are being valued or, lacking any sales, at the last available bid price for long positions, and at the last available asked price for short positions. In cases where equity securities are traded on more than one exchange, the securities are valued on the exchange designated as the primary market by or under the authority of the Board of Directors. Long positions traded in the over-the-counter ("OTC") markets, NASDAQ Capital Market or Bulletin Board are valued at the last available bid price or yield equivalent obtained from one or more dealers or pricing services approved by the Board of Directors. Short positions traded in the OTC markets are valued at the last available asked price. Portfolio securities that are traded both in the OTC markets and on a stock exchange are valued according to the broadest and most representative market. Effective September 4, 2007, exchange-traded options are valued at the mean between the last bid and ask prices at the close of the options market in which the options trade and previously were valued at the last sales price as of the close of options trading on applicable exchanges. Options traded in the OTC market are valued at the last asked price (options written) or the last bid price (options purchased). Swap agreements are valued based upon quoted fair valuations received daily by the Series from a pricing service or counterparty. Financial futures contracts and options thereon, which are traded on exchanges, are valued at their last sale price as of the close of such exchanges. Valuation of short-term investment vehicles is generally based on the net asset value of the underlying investment vehicle or amortized cost. Repurchase agreements are valued at cost plus accrued interest. The Series employs pricing services to provide certain securities prices for the Series. Securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Board of Directors, including valuations furnished by the pricing services retained by the Master LLC, which may use a matrix system for valuations. The procedures of a pricing service and its valuations are reviewed by the officers of the Master LLC under the general supervision of the Board of Directors. Such valuations and procedures will be reviewed periodically by the Board of Directors. Generally, trading in foreign securities, as well as U.S. government securities, money market instruments and certain fixed income securities is substantially completed each day at various times prior to the close of business on the New York Stock Exchange ("NYSE"). The values of such securities used in computing the net assets of the Series are determined as of such times. Foreign currency exchange rates will generally be determined as of the close of business on the NYSE. Occasionally, events affecting the values of such securities and such exchange rates may occur between the times at which they are determined and the close of business on the NYSE that may not be reflected in the computation of the Series' net assets. If events (for example, a company announcement, market volatility or a natural disaster) occur during such periods that are expected to materially affect the value of such securities, those securities will be valued at their fair value as determined in good faith by the Board of Directors or 17 by BlackRock Advisors, LLC (the "Manager"), an indirect, wholly owned subsidiary of BlackRock, Inc., using a pricing service and/or procedures approved by the Board of Directors. (b) Derivative financial instruments - The Series may engage in various portfolio investment strategies both to increase the return of the Series and to hedge, or protect, its exposure to interest rate movements and movements in the securities markets. Losses may arise due to changes in the value of the contract due to an unfavorable change in the price of the underlying security, or index, or if the counterparty does not perform under the contract. The counterparty, for certain instruments, may pledge cash or securities as collateral. o Financial futures contracts - The Series may purchase or sell financial futures contracts and options on such financial futures contracts. Financial futures contracts are contracts for delayed delivery of securities at a specific future date and at a specific price or yield. Upon entering into a contract, the Series deposits, and maintains, as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Series agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in value of the contract. Such receipts or payments are known as variation margin and are recorded by the Series as unrealized gains or losses. When the contract is closed, the Series records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. o Options - The Series may purchase and write call and put options. When the Series writes an option, an amount equal to the premium received by the Series is reflected as an asset and an equivalent liability. The amount of the liability is subsequently marked-to-market to reflect the current market value of the option written. When a security is purchased or sold through an exercise of an option, the related premium paid (or received) is added to (or deducted from) the basis of the security acquired or deducted from (or added to) the proceeds of the security sold. When an option expires (or the Series enters into a closing transaction), the Series realizes a gain or loss on the option to the extent of the premiums received or paid (or a gain or loss to the extent that the cost of the closing transaction exceeds the premium paid or received). Written and purchased options are non-income producing investments. (c) Income taxes - The Series is classified as a partnership for federal income tax purposes. As such, each investor in the Series is treated as owner of its proportionate share of the net assets, income, expenses and realized and unrealized gains and losses of the Series. Therefore, no federal income tax provision is required. It is intended that the Series' assets will be managed so an investor in the Series can satisfy the requirements of Subchapter M of the Internal Revenue Code. (d) Security transactions and investment income - Security transactions are accounted for on the date the securities are purchased or sold (the trade dates). Realized gains and losses on security transactions are determined on the identified cost basis. Dividend income is recorded on the ex-dividend dates. Interest income is recognized on the accrual basis. (e) Securities lending - The Series may lend securities to financial institutions that provide cash or securities issued or guaranteed by the U.S. government as collateral, which will be maintained at all times in an amount equal to at least 100% of the current market value of the loaned securities. The market value of the loaned securities is determined at the close of business of the Series and any additional required collateral is delivered to the Series on the next business day. Where the Series receives securities as collateral for the loaned securities, it collects a fee from the borrower. The Series typically receives the income on the loaned securities but does not receive the income on the collateral. Where the Series receives cash collateral, it may invest such collateral and retain the amount earned on such investment, net of any amount rebated to the borrower. Loans of securities are terminable at any time and the borrower, after notice, is required to return borrowed securities within five business days. The Series may pay reasonable lending agent, administrative and custodial fees in connection with its loans. In the event that the borrower defaults on its obligation to return borrowed securities because of insolvency or for any other reason, the Series could experience delays and costs in gaining access to the collateral. The Series also could suffer a loss where the value of the collateral falls below the market value of the borrowed securities, in the event of borrower default or in the event of losses on investments made with cash collateral. 18 (f) Recent accounting pronouncements - Effective June 29, 2007, the Series implemented Financial Accounting Standards Board ("FASB") Interpretation No. 48, "Accounting for Uncertainty in Income Taxes -- an interpretation of FASB Statement No. 109" ("FIN 48"). FIN 48 prescribes the minimum recognition threshold a tax position must meet in connection with accounting for uncertainties in income tax positions taken or expected to be taken by an entity, including investment companies, before being measured and recognized in the financial statements. Management has evaluated the application of FIN 48 to the Series, and has determined that the adoption of FIN 48 does not have a material impact on the Series' financial statements. The Series files U.S federal and various state and local tax returns. No income tax returns are currently under examination. The statute of limitations on the Series' U.S. federal tax returns remains open for the years ended December 31, 2004 through December 31, 2006. The statute of limitations on the Series' state and local tax returns may remain open for an additional year depending upon the jurisdiction. In September 2006, Statement of Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"), was issued and is effective for fiscal years beginning after November 15, 2007. FAS 157 defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. The impact on the Series' financial statement disclosures, if any, is currently being assessed. In addition, in February 2007, Statement of Financial Accounting Standards No. 159, "The Fair Value Option for Financial Assets and Financial Liabilities" ("FAS 159"), was issued and is effective for fiscal years beginning after November 15, 2007. Early adoption is permitted as of the beginning of a fiscal year that begins on or before November 15, 2007, provided the entity also elects to apply the provisions of FAS 157. FAS 159 permits entities to choose to measure many financial instruments and certain other items at fair value that are not currently required to be measured at fair value. FAS 159 also establishes presentation and disclosure requirements designed to facilitate comparisons between entities that choose different measurement attributes for similar types of assets and liabilities. The impact on the Series' financial statement disclosures, if any, is currently being assessed. 2. Investment Advisory Agreement and Transactions with Affiliates: The Master LLC, on behalf of the Series, has entered into an Investment Advisory Agreement with the Manager. Merrill Lynch & Co. ("Merrill Lynch") and The PNC Financial Services Group, Inc. are the principal owners of BlackRock, Inc. The Manager is responsible for the management of the Series' portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Series. For such services, the Series pays a monthly fee at an annual rate of .01% of the Series' average daily net assets. In addition, the Manager has entered into a sub-advisory agreement with BlackRock Investment Management, LLC ("BIM"), an affiliate of the Manager, under which the Manager pays BIM for services it provides a monthly fee that is a percentage of the management fee paid by the Series to the Manager. The Master LLC, on behalf of the Series, has received an exemptive order from the Securities and Exchange Commission permitting it to lend portfolio securities to Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), a wholly owned subsidiary of Merrill Lynch, or its affiliates. As of December 31, 2007, the Series loaned securities with a value of $132,325 to MLPF&S and its affiliates. Pursuant to that order, the Series also has retained BIM as the securities lending agent for a fee based on a share of the returns on investment of cash collateral. BIM may, on behalf of the Series, invest cash collateral received by the Series for such loans, among other things, in a private investment company managed by the Manager or in registered money market funds advised by the Manager or its affiliates. For the year ended December 31, 2007, BIM received $9,149 in securities lending agent fees. In addition, MLPF&S received $2,171 in commissions on the execution of portfolio security transactions for the year ended December 31, 2007. For the year ended December 31, 2007, the Series reimbursed the Manager $2,621 for certain accounting services. Certain officers and/or directors of the Master LLC are officers and/or directors of BlackRock, Inc. or its affiliates. 19 3. Investments: Purchases and sales of investments, excluding short-term securities, for the year ended December 31, 2007 were $71,266,566 and $30,417,122, respectively. 4. Short-Term Borrowings: The Master LLC, on behalf of the Series, along with certain other funds managed by the Manager and its affiliates, is party to a $500,000,000 credit agreement with a group of lenders. The Series may borrow under the credit agreement to fund shareholder redemptions and for other lawful purposes other than for leverage. The Series may borrow up to the maximum amount allowable under the Series' current prospectus and statement of additional information, subject to various other legal, regulatory or contractual limits. The Series pays a commitment fee of .06% per annum based on the Series' pro rata share of the unused portion of the credit agreement. Amounts borrowed under the credit agreement bear interest at a rate equal to, at each fund's election, the federal funds rate plus .35% or a base rate as defined in the credit agreement. The Series did not borrow under the credit agreement during the year ended December 31, 2007. On November 21, 2007, the credit agreement was renewed for one year under substantially the same terms. 20 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Investors and Board of Directors of Quantitative Master Series LLC: We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Master Mid Cap Index Series, one of the portfolios constituting Quantitative Master Series LLC (formerly Quantitative Master Series Trust) (the "Master LLC"), as of December 31, 2007, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Master LLC's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Master LLC is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Master LLC's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of December 31, 2007, by correspondence with the custodian and brokers; where replies were not received from brokers, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Master Mid Cap Index Series of Quantitative Master Series LLC as of December 31, 2007, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. Deloitte & Touche LLP Princeton, New Jersey February 26, 2008 21 Officers and Directors Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * David O. Beim Director 2007 to Professor of Finance and Economics at the 35 Funds None 40 East 52nd Street present Columbia University Graduate School of 81 Portfolios New York, NY 10022 Business since 1991; Chairman of Outward 1940 Bound USA from 1997 to 2001; Chairman of Wave Hill Inc. from 1990 to 2006; Trustee of Phillips Exeter Academy from 2002 to present. Ronald W. Forbes Director 2007 to Professor Emeritus of Finance, School of 35 Funds None 40 East 52nd Street and Co- present Business, State University of New York at 81 Portfolios New York, NY 10022 Chairman of Albany since 2000 and Professor thereof 1940 the Board of from 1989 to 2000; International Directors Consultant, Urban Institute, Washington, D.C. from 1995 to 1999. Dr. Matina Horner Director 2007 to Executive Vice President of Teachers 35 Funds NSTAR (electric 40 East 52nd Street present Insurance and Annuity Association and 81 Portfolios and gas utility) New York, NY 10022 College Retirement Equities Fund from 1989 1939 to 2003. 22 Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * Rodney D. Johnson Director 2007 to President, Fairmount Capital Advisors, 35 Funds None 40 East 52nd Street and Co- present Inc. since 1987; Director, Fox Chase 81 Portfolios New York, NY 10022 Chairman of Cancer Center since 2002; Member of the 1941 the Board of Archdiocesan Investment Committee of the Directors Archdioceses of Philadelphia since 2003. Herbert I. London Director 2007 to Professor Emeritus, New York University 35 Funds AIMS Worldwide, 40 East 52nd Street and Member present since 2005; John M. Olin Professor of 81 Portfolios Inc. (marketing) New York, NY 10022 of the Audit Humanities, New York University from 1993 1939 Committee to 2005 and Professor thereof from 1980 to 2005; President, Hudson Institute since 1997 and Trustee thereof since 1980; Dean, Gallatin Division of New York University from 1976 to 1993; Distinguished Fellow, Herman Kahn Chair, Hudson Institute from 1984 to 1985; Chairman of the Board of Directors of Vigilant Research, Inc. since 2006; Member of the Board of Directors for Grantham University since 2006; Director of AIMS Worldwide, Inc. since 2006; Director of Reflex Security since 2006; Director of InnoCentive, Inc. since 2006; Director of Cerego, LLC since 2005; Director, Damon Corp. from 1991 to 1995; Overseer, Center for Naval Analyses from 1983 to 1993. 23 Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * Cynthia A. Montgomery Director 2007 to Professor, Harvard Business School since 35 Funds Newell 40 East 52nd Street present 1989; Associate Professor, J.L. Kellogg 81 Portfolios Rubbermaid, Inc. New York, NY 10022 Graduate School of Management, (manufacturing) 1952 Northwestern University from 1985 to 1989; Associate Professor, Graduate School of Business Administration, University of Michigan from 1979 to 1985; Director, Harvard Business School Publishing since 2005; Director, McLean Hospital since 2005. Joseph P. Platt, Jr. Director 2007 to Partner, Amarna Corporation, LLC (private 35 Funds Greenlight 40 East 52nd Street present investment company) since 2002; Director, 81 Portfolios Capital Re, Ltd. New York, NY 10022 Jones and Brown (Canadian insurance (reinsurance 1947 broker) since 1998; Director, Greenlight company) Re Ltd. (reinsurance company) since 2004; Partner, Amarna Financial Company (private investment company) since 2005; Director and Executive Vice President, Johnson and Higgins (insurance brokerage) from 1990 to 1997. 24 Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * Robert C. Robb, Jr. Director 2007 to Partner, Lewis, Eckert, Robb and Company 35 Funds None 40 East 52nd Street present (management and financial consulting firm) 81 Portfolios New York, NY 10022 since 1981; Trustee, Medical College of 1945 Pennsylvania/ Hahnemann University from 1998 to 2002; Trustee, EQK Realty Investors from 1994 to 2000; Director, Tamaqua Cable Products Company from 1981 to 1998; Director, Brynwood Partners from 1984 to 1998; Director, The PNC Bank Corp. from 1994 to 1998; Director, Provident National Bank from 1983 to 1993; Director, Brinks, Inc. from 1981 to 1986. Toby Rosenblatt Director 2007 to President since 1999 and Vice President - 35 Funds A.P. Pharma, Inc. 40 East 52nd Street and Vice present General Partner since 1990, Founders 81 Portfolios (specialty New York, NY 10022 Chairman of Investments Ltd. (private investments); pharmaceuticals) 1938 the Director, Forward Management, LLC since Performance 2007; Trustee, SSR Funds from 1990 to Oversight 2005; Trustee, Metropolitan Series Funds, Committee Inc. from 2001 to 2005. Kenneth L. Urish Director and 2007 to Managing Partner, Urish Popeck & Co., LLC 35 Funds None 40 East 52nd Street Chairman of present (certified public accountants and 81 Portfolios New York, NY 10022 the Audit consultants) since 1976; External Advisory 1951 Committee Board, The Pennsylvania State University Accounting Department since 2001; Trustee, The Holy Family Foundation since 2001; President and Trustee, Pittsburgh Catholic Publishing Associates since 2003; Director, Inter-Tel from 2006 to 2007. 25 Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * Frederick W. Winter Director 2007 to Professor and Dean Emeritus of the Joseph 35 Funds None 40 East 52nd Street and Member present M. Katz School of Business - University of 81 Portfolios New York, NY 10022 of the Audit Pittsburgh since 2005 and Dean therof from 1945 Committee 1997 to 2005; Director, Alkon Corporation (pneumatics) since 1992; Director, Indotronix International (IT service) since 2004; Director, Tippman Sports (recreation) since 2005. * Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. Interested Directors* Richard S. Davis Director 2007 to Managing Director, BlackRock, Inc. since 2005; 184 Funds None 40 East 52nd Street present Chief Executive Officer, State Street Research 289 Portfolios New York, NY 10022 & Management Company from 2000 to 2005; 1945 Chairman of the Board of Trustees, State Street Research mutual funds ("SSR Funds") from 2000 to 2005; Senior Vice President, Metropolitan Life Insurance Company from 1999 to 2000; Chairman SSR Realty from 2000 to 2004. 26 Number of BlackRock- Advised Position(s) Length Principal Funds and Name, Address and Held with of Time Occupation(s) During Portfolios Public Year of Birth Master LLC Served Past Five Years Overseen Directorships Non-Interested Directors * Henry Gabbay Director 2007 to Consultant, BlackRock, Inc. since 2007; 183 Funds None 40 East 52nd Street present Managing Director, BlackRock, Inc. from 1989 288 Portfolios New York, NY 10022 to June 2007; Chief Administrative Officer, 1947 BlackRock Advisors, LLC from 1998 to 2007; President of BlackRock Funds and BlackRock Bond Allocation Target Shares from 2005 to 2007; Treasurer of certain closed-end funds in the BlackRock Fund complex from 1989 to 2006. * Messrs. Davis and Gabbay are both "interested persons," as defined in the Investment Company Act of 1940, of the Master LLC based on their positions with BlackRock, Inc. and its affiliates. Directors serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. Advisory Board Member David R. Advisory 2007 to Chairman, Wilmerding & Associates, Inc. 35 Funds Chestnut Street Wilmerding, Jr.* Board present (investment advisers) from 1989 to 2005; 81 Portfolios Exchange Fund 40 East 52nd Street Member Chairman, Coho Partners, Ltd. (investment (open-end New York, NY 10022 advisers) from 2003 to 2005. Director, Beaver investment 1935 Management Corporation. company) 27 Position(s) Length Principal Name, Address and Held with of Time Occupation(s) During Year of Birth Master LLC Served Past Five Years Non-Interested Directors * Master LLC Officers * Donald C. Burke Fund 2007 to Managing Director of BlackRock, Inc. since 2006; 40 East 52nd Street President present Formerly Managing Director of Merrill Lynch New York, NY 10022 and Chief Investment Managers, L.P. ("MLIM") and Fund Asset 1960 Executive Management, L.P. ("FAM") in 2006; First Vice Officer President thereof from 1997 to 2005; Treasurer thereof from 1999 to 2006 and Vice President thereof from 1990 to 1997. Anne F. Ackerley Vice 2007 to Managing Director of BlackRock, Inc. since 2000 and 40 East 52nd Street President present First Vice President and Chief Operating Officer of New York, NY 10022 Mergers and Acquisitions Group from 1997 to 2000; 1962 First Vice President and Chief Operating Officer of Public Finance Group thereof from 1995 to 1997; First Vice President of Emerging Markets Fixed Income Research of Merrill Lynch & Co., Inc. from 1994 to 1995. Neal J. Andrews Chief 2007 to Managing Director of BlackRock Inc. since 2006; 40 East 52nd Street Financial present Formerly Senior Vice President and Line of Business New York, NY 10022 Officer Head of Fund Accounting and Administration at PFPC 1966 Inc. from 1992 to 2006. Jay M. Fife Treasurer 2007 to Managing Director of BlackRock, Inc. since 2007 and 40 East 52nd Street present Director in 2006; Formerly Assistant Treasurer of New York, NY 10022 the MLIM/FAM advised funds from 2005 to 2006; 1970 Director of MLIM Fund Services Group from 2001 to 2006. 28 Position(s) Length Principal Name, Address and Held with of Time Occupation(s) During Year of Birth Master LLC Served Past Five Years Non-Interested Directors * Brian P. Kindelan Chief 2007 to Chief Compliance Officer of the Funds since 2007; 40 East 52nd Street Compliance present Managing Director and Senior Counsel thereof since New York, NY 10022 Officer 2005; Director and Senior Counsel of BlackRock 1959 Advisors, Inc. from 2001 to 2004 and Vice President and Senior Counsel thereof from 1998 to 2000; Senior Counsel of The PNC Bank Corp. from 1995 to 1998. Howard Surloff Secretary 2007 to Managing Director of BlackRock, Inc. and 40 East 52nd Street present General Counsel of U.S. Funds at BlackRock, Inc. New York, NY 10022 since 2006; Formerly General Counsel (U.S.) of 1965 Goldman Sachs Asset Management, L.P. from 1993 to 2006. * Officers of the Master LLC serve at the pleasure of the Board of Directors. Proxy Results During the six-month period ended December 31, 2007, the shareholders of Master Mid Cap Index Series of Quantitative Master Series LLC voted on the following proposal, which was approved at a special shareholders' meeting on September 7, 2007. This proposal was a part of the reorganization of the Board of Directors of Master Quantitative Series LLC that took effect on November 1, 2007. A description of the proposal and number of shares voted for each Director are as follows: Shares Voted Shares Withheld For From Voting - ------------------------------------------------------------------------------------------------------------ To elect the Board of Directors of Quantitative Master Series LLC: David O. Beim, Richard S. Davis, Ronald W. Forbes, Henry Gabbay, Dr. Matina Horner, Rodney D. Johnson, Herbert I. London, Cynthia A. Montgomery, Joseph P. Platt, Jr., Robert C. Robb, Jr., Toby Rosenblatt, Kenneth L. Urish and Frederick W. Winter 113,613,469 0 - ------------------------------------------------------------------------------------------------------------ 29 Additional Information Custodian JPMorgan Chase Bank Brooklyn, NY 11245 Accounting Agent State Street Bank and Trust Company Princeton, NJ 08540 Independent Registered Public Accounting Firm Deloitte & Touche LLP Princeton, NJ 08540 Legal Counsel Sidley Austin LLP New York, NY 10019 Availability of Quarterly Schedule of Investments The Series files its complete schedule of portfolio holdings with the Securities and Exchange Commission ("SEC") for the first and third quarters of each fiscal year on Form N-Q. The Series' Forms N-Q are available on the SEC's website at http://www.sec.gov. The Series' Forms N-Q may also be reviewed and copied at the SEC's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling (800) SEC-0330. Availability of Proxy Voting A description of the policies and procedures that the Series uses to determine how to vote proxies relating to portfolio securities is available (1) without charge, upon request, by calling toll-free (800) 441-7762; (2) at www.blackrock.com; and (3) on the Securities and Exchange Commission's website at http://www.sec.gov. Information about how the Series voted proxies relating to securities held in the Series' portfolio during the most recent 12-month period ended June 30 is available (1) at www.blackrock.com; and (2) on the Securities and Exchange Commission's website at http://www.sec.gov. Item 2 - Code of Ethics - The registrant (or the "Fund") has adopted a code of ethics, as of the end of the period covered by this report, applicable to the registrant's principal executive officer, principal financial officer and principal accounting officer, or persons performing similar functions. During the period covered by this report, there have been no amendments to or waivers granted under the code of ethics. A copy of the code of ethics is available without charge at www.blackrock.com. Item 3 - Audit Committee Financial Expert - The registrant's board of directors or trustees, as applicable (the "board of directors") has determined that (i) the registrant has the following audit committee financial experts serving on its audit committee and (ii) each audit committee financial expert is independent: Donald W. Burton (term ended, effective November 1, 2007) John F. O'Brien (term ended, effective November 1, 2007) Kenneth L. Urish (term began, effective November 1, 2007) David H. Walsh (term ended, effective November 1, 2007) Fred G. Weiss (term ended, effective November 1, 2007) Under applicable securities laws, a person determined to be an audit committee financial expert will not be deemed an "expert" for any purpose, including without limitation for the purposes of Section 11 of the Securities Act of 1933, as a result of being designated or identified as an audit committee financial expert. The designation or identification as an audit committee financial expert does not impose on such person any duties, obligations, or liabilities greater than the duties, obligations, and liabilities imposed on such person as a member of the audit committee and board of directors in the absence of such designation or identification. Item 4 - Principal Accountant Fees and Services - ---------------------------------------------------------------------------------------------------------------------------------- (a) Audit Fees (b) Audit-Related Fees(1) (c) Tax Fees(2) (d) All Other Fees(3) - ---------------------------------------------------------------------------------------------------------------------------------- Current Previous Current Previous Current Previous Current Previous Fiscal Year Fiscal Fiscal Year Fiscal Fiscal Year Fiscal Fiscal Year Fiscal Entity Name End Year End End Year End End Year End End Year End - ---------------------------------------------------------------------------------------------------------------------------------- Master Mid Cap Index Series of Quantitative Master Series LLC $27,300 $27,300 $0 $0 $9,200 $9,200 $0 $0 - ---------------------------------------------------------------------------------------------------------------------------------- 1 The nature of the services include assurance and related services reasonably related to the performance of the audit of financial statements not included in Audit Fees. 2 The nature of the services include tax compliance, tax advice and tax planning. 3 The nature of the services include a review of compliance procedures and attestation thereto. (e)(1) Audit Committee Pre-Approval Policies and Procedures: The registrant's audit committee (the "Committee") has adopted policies and procedures with regard to the pre-approval of services. Audit, audit-related and tax compliance services provided to the registrant on an annual basis require specific pre-approval by the Committee. The Committee also must approve other non-audit services provided to the registrant and those non-audit services provided to the registrant's affiliated service providers that relate directly to the operations and the financial reporting of the registrant. Certain of these non-audit services that the Committee believes are a) consistent with the SEC's auditor independence rules and b) routine and recurring services that will not impair the independence of the independent accountants may be approved by the Committee without consideration on a specific case-by-case basis ("general pre-approval"). However, such services will only be deemed pre-approved provided that any individual project does not exceed $5,000 attributable to the registrant or $50,000 for all of the registrants the Committee oversees. Any proposed services exceeding the pre-approved cost levels will require specific pre-approval by the Committee, as will any other services not subject to general pre-approval (e.g., unanticipated but permissible services). The Committee is informed of each service approved subject to general pre-approval at the next regularly scheduled in-person board meeting. (e)(2) None of the services described in each of Items 4(b) through (d) 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) Affiliates' Aggregate Non-Audit Fees: -------------------------------------------------------------------- Current Fiscal Previous Fiscal Entity Name Year End Year End -------------------------------------------------------------------- Master Mid Cap Index Series of Quantitative Master Series LLC $293,700 $3,080,650 -------------------------------------------------------------------- (h) The registrant's audit committee has considered and determined that the provision of non-audit services that were rendered to the registrant's investment adviser (not including any non-affiliated sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by the registrant's investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. Regulation S-X Rule 2-01(c)(7)(ii) - $284,500, 0% Item 5 - Audit Committee of Listed Registrants - Not Applicable Item 6 - Schedule of Investments - The registrant's Schedule of Investments is included as part of the Report to Stockholders filed under Item 1 of this form. Item 7 - Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies - Not Applicable Item 8 - Portfolio Managers of Closed-End Management Investment Companies - Not Applicable Item 9 - Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers - Not Applicable Item 10 - Submission of Matters to a Vote of Security Holders - The registrant's Nominating and Governance Committee will consider nominees to the Board recommended by shareholders when a vacancy becomes available. Shareholders who wish to recommend a nominee should send nominations which include biographical information and set forth the qualifications of the proposed nominee to the registrant's Secretary. There have been no material changes to these procedures. Item 11 - Controls and Procedures 11(a) - The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 15d-15(b) under the Securities Exchange Act of 1934, as amended. 11(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 12 - Exhibits attached hereto 12(a)(1) - Code of Ethics - See Item 2 12(a)(2) - Certifications - Attached hereto 12(a)(3) - Not Applicable 12(b) - Certifications - Attached hereto Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Master Mid Cap Index Series of Quantitative Master Series LLC By: /s/ Donald C. Burke ------------------- Donald C. Burke Chief Executive Officer (principal executive officer) of Master Mid Cap Index Series of Quantitative Master Series LLC Date: February 21, 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/ Donald C. Burke ------------------- Donald C. Burke Chief Executive Officer (principal executive officer) of Master Mid Cap Index Series of Quantitative Master Series LLC Date: February 21, 2008 By: /s/ Neal J. Andrews ------------------- Neal J. Andrews Chief Financial Officer (principal financial officer) of Master Mid Cap Index Series of Quantitative Master Series LLC Date: February 21, 2008