UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 -------- FORM N-CSRS -------- CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES INVESTMENT COMPANY ACT FILE NUMBER 811-07257 SEI INSTITUTIONAL INVESTMENTS TRUST (Exact name of registrant as specified in charter) -------- C/O CT CORPORATION 101 FEDERAL ST. BOSTON, MA 02110 (Address of principal executive offices) (Zip code) SEI INVESTMENTS ONE FREEDOM VALLEY DRIVE OAKS, PA 19456 (Name and address of agent for service) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 1-800-342-5734 DATE OF FISCAL YEAR END: MAY 31, 2008 DATE OF REPORTING PERIOD: NOVEMBER 30, 2007 ITEM 1. REPORTS TO STOCKHOLDERS. [LOGO] SEI New Ways. New Answers.(R) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust - -------------------------------------------------------------------------------- Semi-Annual Report as of November 30, 2007 - -------------------------------------------------------------------------------- Large Cap Fund Large Cap Diversified Alpha Fund Large Cap Disciplined Equity Fund Large Cap Index Fund Small Cap Fund Small/Mid Cap Equity Fund International Equity Fund World Equity Ex-US Fund Enhanced Income Fund Core Fixed Income Fund High Yield Bond Fund Long Duration Fund Extended Duration Fund Emerging Markets Debt Fund Real Return Plus Fund - -------------------------------------------------------------------------------- TABLE OF CONTENTS - -------------------------------------------------------------------------------- Schedules of Investments 1 - ------------------------------------------------------------------------------- Statements of Assets and Liabilities 198 - ------------------------------------------------------------------------------- Statements of Operations 202 - ------------------------------------------------------------------------------- Statements of Changes in Net Assets 206 - ------------------------------------------------------------------------------- Financial Highlights 212 - ------------------------------------------------------------------------------- Notes to Financial Statements 214 - ------------------------------------------------------------------------------- Disclosure of Fund Expenses 227 - ------------------------------------------------------------------------------- Board of Trustees Consideration in Approving the Advisory and Sub-Advisory Agreements 229 - ------------------------------------------------------------------------------- The Trust files its complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year on Form N-Q within sixty days after the end of the period. The Trust's Forms N-Q are available on the Commission's website at http://www.sec.gov, and may be reviewed and copied at the Commission's Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 1-800-SEC-0330. A description of the policies and procedures that the Trust uses to determine how to vote proxies relating to portfolio securities, as well as information relating to how a Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30, is available (i) without charge, upon request, by calling 1-800-DIAL-SEI; and (ii) on the Commission's website at http://www.sec.gov. SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Information Technology 15.6% Financials 15.5% Health Care 11.6% Energy 10.3% Consumer Discretionary 10.0% Short-Term Investments 9.9% Consumer Staples 8.8% Industrials 8.0% Telecommunication Services 4.0% Materials 3.1% Utilities 3.0% U.S. Treasury Obligation 0.2% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 96.8% CONSUMER DISCRETIONARY -- 10.8% Amazon.com (B)* 4,600 $ 417 Amerigon* 2,000 37 AnnTaylor Stores* 1,200 37 Apollo Group, Cl A (B)* 3,000 230 Asbury Automotive Group 5,900 99 Autoliv 4,000 234 Autozone* 1,387 155 Barnes & Noble 4,300 165 Best Buy (B) 7,200 368 Big Lots (B)* 4,300 80 BorgWarner 2,000 193 Brinker International 24,616 567 Brunswick 4,600 94 Cablevision Systems, Cl A* 10,026 271 Career Education* 2,700 78 Carmax (B)* 1,400 32 Carnival 200 9 CBS, Cl B (B) 38,569 1,058 Centex 3,300 69 Central European Media Entertainment, Cl A* 500 55 Cheesecake Factory (B)* 3,200 75 Christopher & Banks 4,500 73 Clear Channel Communications 4,325 155 Coach* 8,973 333 Comcast, Cl A (B)* 32,497 667 CROCS (B)* 3,000 117 Dick's Sporting Goods (B)* 5,400 169 DIRECTV Group* 31,100 773 Discovery Holding, Cl A* 10,500 257 Dollar Tree Stores (B)* 14,200 407 Dow Jones (B) 1,800 108 DreamWorks Animation SKG, Cl A* 300 8 Eastman Kodak (B) 12,600 296 EchoStar Communications, Cl A* 3,543 153 Expedia* 7,400 241 Family Dollar Stores 700 16 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Ford Motor (B)* 10,100 $ 76 Fortune Brands 10,408 798 GameStop, Cl A* 2,600 149 Gannett (B) 13,700 503 Garmin* 600 64 General Motors (B) 17,961 536 Gentex 14,200 281 Genuine Parts 1,358 65 Goodyear Tire & Rubber* 10,600 305 Group 1 Automotive (B) 1,100 30 Guess?* 2,300 108 Gymboree* 5,100 170 Hanesbrands* 3,200 90 Harley-Davidson 1,300 62 Harman International Industries 1,400 103 Harrah's Entertainment 2,326 205 Hasbro 19,500 542 Home Depot 52,550 1,501 IAC/InterActive (B)* 13,259 369 Idearc 10,032 190 International Game Technology 45,000 1,965 Interpublic Group (B)* 16,800 159 ITT Educational Services* 1,500 170 J.C. Penney 6,097 269 Jack in the Box* 7,200 216 Jarden* 700 18 John Wiley & Sons, Cl A 800 34 Johnson Controls 9,616 371 Jones Apparel Group (B) 4,700 88 KB Home (B) 7,800 163 Kimball International, Cl B 1,900 25 Kohl's* 2,794 138 Lamar Advertising, Cl A (B) 5,854 304 Liberty Global, Cl A (B)* 13,374 543 Liberty Media Holding-Capital, Ser A* 4,800 571 Liberty Media Holding-Interactive, Cl A* 500 10 Limited Brands 3,600 72 Lowe's 37,070 905 Macy's 14,700 436 Magna International, Cl A* 1,800 152 Marvel Entertainment* 4,000 111 Mattel 22,500 450 McDonald's 55,345 3,236 McGraw-Hill 28,697 1,408 Meredith 1,000 55 MGM Mirage* 21,500 1,860 Mohawk Industries (B)* 1,200 97 Morgans Hotel Group* 5,700 105 Newell Rubbermaid 12,534 336 News, Cl A 15,239 321 Nike, Cl B (B) 18,130 1,190 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 1 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Nordstrom 900 $ 30 Omnicom Group (B) 2,860 139 Orient-Express Hotels, Cl A 400 25 Panera Bread, Cl A (B)* 900 36 Papa John's International (B)* 2,200 52 Penn National Gaming* 2,200 131 Phillips-Van Heusen 1,400 59 Polo Ralph Lauren 2,122 146 Pulte Homes (B) 5,200 53 R.H. Donnelley (B)* 3,200 142 RadioShack (B) 6,000 111 Regal Entertainment Group, Cl A (B) 1,200 24 Rent-A-Center* 3,900 55 Reuters Group ADR* 13,000 974 Ross Stores 1,100 29 Royal Caribbean Cruises 100 4 Saks (B) 3,900 80 Service International 9,800 130 Shaw Communications, Cl B* 11,800 292 Sherwin-Williams 5,825 366 Snap-On 617 30 Staples* 77,000 1,825 Starbucks* 17,940 420 Target 8,464 508 Thor Industries 4,200 148 Tiffany 2,000 93 Tim Hortons 1,395 54 Time Warner 108,763 1,877 Time Warner Cable, Cl A (B)* 1,200 31 TJX 1,300 38 Tribune (B) 7,548 234 Urban Outfitters* 900 24 Valassis Communications (B)* 6,700 83 VF 3,059 229 Viacom, Cl B* 22,858 960 WABCO Holdings* 1,433 67 Walt Disney 32,142 1,065 Warnaco Group* 3,300 122 Weight Watchers International 27,400 1,308 Wendy's International 3,100 87 Whirlpool 1,100 89 Williams-Sonoma (B) 12,210 355 Winnebago Industries (B) 5,100 110 Wyndham Worldwide 2,800 82 Wynn Resorts (B)* 800 102 Yum! Brands 16,054 596 -------------- 43,436 -------------- CONSUMER STAPLES -- 9.4% Alberto-Culver 3,300 84 Altria Group 26,444 2,051 Anheuser-Busch 16,279 858 Archer-Daniels-Midland 11,400 414 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Avon Products 3,600 $ 148 Brown-Forman, Cl B 500 35 Bunge 1,200 135 Campbell Soup 6,445 237 Church & Dwight (B) 2,100 118 Coca-Cola 48,201 2,993 Coca-Cola Enterprises 18,000 467 Colgate-Palmolive 13,426 1,075 ConAgra Foods 25,800 646 Corn Products International 1,800 71 Costco Wholesale (B) 17,400 1,173 CVS 53,477 2,144 Dean Foods 2,833 71 Energizer Holdings (B)* 2,100 239 Estee Lauder, Cl A 1,900 85 General Mills 9,546 574 Hansen Natural* 200 9 HJ Heinz 4,907 232 Hormel Foods 6,600 262 JM Smucker 2,300 113 Kellogg 5,182 280 Kimberly-Clark 10,554 737 Kraft Foods, Cl A 12,344 426 Kroger 46,222 1,329 Loews - Carolina 3,159 281 McCormick 781 30 Molson Coors Brewing, Cl B 8,500 458 NBTY* 2,000 60 Nu Skin Enterprises, Cl A 3,500 62 Pepsi Bottling Group 6,700 286 PepsiAmericas 1,200 41 PepsiCo 47,997 3,704 Pilgrim's Pride 2,400 63 Prestige Brands Holdings (B)* 2,300 19 Procter & Gamble 110,528 8,179 Ralcorp Holdings* 600 37 Reynolds American (B) 13,560 949 Safeway (B) 23,076 803 Sara Lee 12,700 214 Smithfield Foods* 600 18 Supervalu 16,581 694 Sysco 424 14 Tyson Foods, Cl A 20,100 300 UST 2,200 127 Wal-Mart Stores 49,312 2,362 Walgreen (B) 43,000 1,573 WM Wrigley Jr. 10,586 678 -------------- 37,958 -------------- ENERGY -- 11.1% Apache 2,904 281 Baker Hughes 36,151 2,902 BP ADR* 1,200 87 - -------------------------------------------------------------------------------- 2 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cabot Oil & Gas 2,600 $ 90 Cameron International* 8,829 823 Cheniere Energy (B)* 1,600 56 Chesapeake Energy (B) 14,900 564 Chevron 68,398 6,003 Cimarex Energy 2,400 93 ConocoPhillips 45,527 3,644 Denbury Resources* 300 16 Devon Energy 11,890 985 Diamond Offshore Drilling 400 47 Dresser-Rand Group* 3,500 125 EOG Resources 2,000 166 Exxon Mobil 137,535 12,263 FMC Technologies* 500 28 Forest Oil* 300 14 Frontier Oil 100 4 Global Industries* 3,600 80 Grant Prideco* 700 34 Halliburton 41,700 1,527 Helmerich & Payne 1,300 45 Hess 6,053 431 Holly 3,100 150 Hornbeck Offshore Services (B)* 7,200 296 Marathon Oil 34,588 1,933 Murphy Oil 500 36 National Oilwell Varco* 2,600 177 Noble 1,500 78 Noble Energy 4,374 315 Occidental Petroleum 24,070 1,679 Oceaneering International* 200 13 Patterson-UTI Energy 11,300 213 Petro-Canada* 4,800 232 Quicksilver Resources (B)* 100 5 Range Resources 900 37 Schlumberger 40,406 3,776 SEACOR Holdings* 1,200 109 Smith International 1,400 88 Southwestern Energy* 400 20 Suncor Energy* 19,522 1,869 Sunoco (B) 8,900 597 Superior Energy Services* 1,300 45 Teekay Shipping (B) 1,100 62 Tesoro 5,000 246 Tidewater 900 44 Transocean (B) 1,880 258 Unit* 300 13 Valero Energy 10,900 709 Weatherford International (B)* 18,260 1,143 Williams 800 28 XTO Energy 1,510 93 -------------- 44,572 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- FINANCIALS -- 16.6% ACE 1,600 $ 96 Aflac 2,140 134 Alleghany* 204 83 Allied Capital 67 2 Allied World Assurance Holdings 300 14 Allstate 29,260 1,496 American Capital Strategies (B) 1,046 39 American Express 27,772 1,638 American Financial Group 10,200 298 American International Group 68,320 3,971 Ameriprise Financial 5,158 303 Annaly Capital Management+ 22,400 385 Anthracite Capital+ (B) 294 2 AON (B) 8,261 413 Apollo Investment 400 7 Assurant 7,507 491 Astoria Financial 7,061 177 Axis Capital Holdings 14,900 568 Bank of America 132,109 6,094 Bank of New York Mellon 6,986 335 BB&T 10,634 384 Bear Stearns 444 44 Charles Schwab 53,665 1,305 Chubb 19,560 1,067 CIT Group 26,748 711 Citigroup 147,063 4,897 City National 400 26 CME Group 4,439 2,924 Comerica 23,897 1,094 Countrywide Financial (B) 5,100 55 Credicorp 300 21 Discover Financial Services* 31,683 550 Eaton Vance 7,600 333 Endurance Specialty Holdings 4,800 194 Everest Re Group 2,600 273 Fannie Mae 8,114 312 Federated Investors, Cl B 4,200 171 Fidelity National Financial, Cl A 9,900 155 Fifth Third Bancorp 12,200 365 First American 3,300 113 Forest City Enterprises, Cl A 2,352 118 Franklin Resources 5,171 637 Freddie Mac 40,342 1,415 General Growth Properties+ 2,100 98 Genworth Financial, Cl A 11,100 291 Goldman Sachs Group 8,164 1,850 Hartford Financial Services Group 7,825 746 Hudson City Bancorp 8,600 131 Huntington Bancshares 800 13 IndyMac Bancorp (B) 5,100 49 IntercontinentalExchange (B)* 14,000 2,337 iStar Financial+ 600 18 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 3 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Janus Capital Group 16,100 $ 540 JER Investors Trust+ (B) 5,100 50 Jones Lang LaSalle 4,900 412 JPMorgan Chase 117,405 5,356 Keycorp 22,317 588 Legg Mason 5,170 394 Lehman Brothers Holdings (B) 6,664 417 Leucadia National (B) 2,500 117 Lincoln National 2,400 148 Loews 11,947 571 Markel* 329 159 Marsh & McLennan 3,625 91 MBIA (B) 10,200 372 Merrill Lynch 21,828 1,308 Metlife 6,490 426 MF Global* 2,100 61 MGIC Investment (B) 4,900 115 Montpelier Re Holdings (B) 5,300 92 Moody's (B) 9,259 349 Morgan Stanley 40,472 2,134 National City 12,399 245 Nationwide Financial Services, Cl A 6,300 282 New York Community Bancorp 1,300 24 Newcastle Investment+ (B) 11,300 147 Northern Trust 465 38 NorthStar Realty Finance+ (B) 13,500 124 Old Republic International 15,800 237 Oriental Financial Group 3,800 51 PartnerRe 500 41 Platinum Underwriters Holdings 1,100 40 PNC Financial Services Group 1,629 119 Prudential Financial 7,000 659 Regions Financial 30,662 810 Safeco (B) 12,062 696 SeaBright Insurance Holdings* 2,000 31 Security Capital Assurance (B) 4,300 30 SL Green Realty+ 516 54 SLM 1,400 53 State Street 101 8 SunTrust Banks 9,368 657 T. Rowe Price Group 232 14 TD Ameritrade Holding (B)* 22,800 426 Thomas Properties Group 1,900 20 Torchmark 4,245 262 Travelers 44,234 2,349 UnionBanCal 3,700 200 United PanAm Financial* 2,100 12 UnumProvident 10,750 267 US Bancorp 36,052 1,193 Wachovia 38,389 1,651 Washington Mutual (B) 46,724 911 Wells Fargo 49,946 1,620 WR Berkley 5,700 174 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- XL Capital, Cl A 5,658 $ 331 Zions Bancorporation 51 3 -------------- 66,722 -------------- HEALTH CARE -- 12.5% Abbott Laboratories 30,608 1,760 Aetna 5,100 285 Alcon 1,008 140 Allergan 50,274 3,370 AmerisourceBergen 8,642 392 Amgen* 5,700 315 Amylin Pharmaceuticals (B)* 12,050 460 Baxter International 19,114 1,144 Beckman Coulter 400 28 Becton Dickinson 9,897 819 Biogen Idec* 300 22 Bristol-Myers Squibb 8,913 264 C.R. Bard 200 17 Cardinal Health 6,784 411 Celgene* 16,736 1,030 Cerner* 600 36 Charles River Laboratories International* 2,500 159 Chemed 1,300 70 Cigna 21,744 1,166 Covance* 1,200 105 Coventry Health Care* 300 17 Covidien* 3,000 120 Cutera* 1,500 23 Dentsply International 400 17 Dionex* 400 34 Eli Lilly 14,904 789 Express Scripts* 10,000 678 Forest Laboratories* 272 11 Gen-Probe* 400 27 Genentech* 40,460 3,085 Gilead Sciences* 40,298 1,876 Health Net* 1,700 83 Hillenbrand Industries 1,300 70 HLTH* 4,400 62 Hospira* 300 13 Idexx Laboratories* 3,000 182 Intuitive Surgical* 300 98 Invitrogen* 5,800 563 Johnson & Johnson 64,094 4,342 Kinetic Concepts (B)* 2,100 123 King Pharmaceuticals* 36,384 385 Laboratory of America Holdings* 852 62 Manor Care (B) 1,887 122 McKesson 717 48 Medco Health Solutions* 5,573 557 Medtronic 11,471 583 Mentor (B) 3,500 132 Merck 85,274 5,062 - -------------------------------------------------------------------------------- 4 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Millennium Pharmaceuticals* 500 $ 7 Mylan Laboratories (B) 18,200 262 OSI Pharmaceuticals* 1,700 79 PDL BioPharma (B)* 6,900 122 PerkinElmer 5,000 136 Pfizer 219,879 5,224 Pharmaceutical Product Development 500 21 Possis Medical* 900 14 Quest Diagnostics 300 17 Respironics* 100 5 Schering-Plough 47,668 1,492 Sierra Health Services* 1,100 46 Spectranetics* 3,700 56 St. Jude Medical* 33,830 1,345 Stryker* 18,491 1,343 Tenet Healthcare (B)* 19,500 107 Thermo Fisher Scientific* 23,853 1,375 UnitedHealth Group 64,707 3,559 VCA Antech* 958 39 Warner Chilcott, Cl A* 1,900 35 Waters* 1,900 148 Watson Pharmaceuticals* 900 26 WellCare Health Plans* 700 27 WellPoint* 13,260 1,117 Wyeth 23,360 1,147 Zimmer Holdings* 22,500 1,456 -------------- 50,362 -------------- INDUSTRIALS -- 8.7% 3M 1,998 166 Acuity Brands 3,100 122 Administaff 5,500 180 AGCO (B)* 1,600 110 Alliant Techsystems* 400 47 Allied Waste Industries* 9,200 105 Ametek 400 18 Applied Industrial Technologies 1,700 51 Avis Budget Group* 6,260 94 BE Aerospace* 1,800 85 Boeing 7,680 711 Burlington Northern Santa Fe 285 24 C.H. Robinson Worldwide 387 20 Carlisle 900 36 Caterpillar 8,000 575 Ceradyne* 1,200 59 ChoicePoint* 5,500 208 Con-way 366 15 Cooper Industries, Cl A 1,000 50 Corrections of America* 4,100 125 CRA International* 1,000 46 Crane 300 14 CSX 4,490 189 Cummins 4,300 503 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Danaher 1,280 $ 111 Deere 1,900 326 Delta Air Lines* 1,900 38 Diamond Management & Technology Consultants (B) 2,600 19 Dun & Bradstreet 907 81 Eaton 6,991 624 Emerson Electric 34,164 1,948 Expeditors International Washington 35,000 1,642 Fastenal 900 36 First Solar* 600 142 Flowserve 200 19 Fluor 300 44 Foster Wheeler* 1,100 164 General Cable* 500 37 General Dynamics 1,786 159 General Electric 259,943 9,953 Goodrich 1,200 86 Harsco 600 36 Hertz Global Holdings* 1,500 29 Honeywell International 22,118 1,252 Hubbell, Cl B 900 49 Illinois Tool Works 300 17 Ingersoll-Rand, Cl A 17,661 912 ITT 1,060 68 Jacobs Engineering Group* 600 50 JB Hunt Transport Services (B) 2,700 71 Kansas City Southern* 200 7 Kennametal 400 31 L-3 Communications Holdings 1,900 210 Labor Ready* 6,400 96 Lennox International 2,000 68 Lockheed Martin 11,085 1,227 Manitowoc 1,900 83 Manpower 2,300 141 Masco 22,700 508 McDermott International* 600 31 MSC Industrial Direct, Cl A 1,300 56 Norfolk Southern 5,200 266 Northrop Grumman 22,475 1,771 Northwest Airlines* 2,100 38 Nuco2* 1,200 33 Oshkosh Truck 700 34 Paccar 2,914 147 Pall 3,800 145 Parker Hannifin 11,200 890 Pentair 1,000 34 PeopleSupport* 2,800 39 Precision Castparts 3,425 505 Quanta Services* 4,000 110 Raytheon 5,588 346 Robert Half International 4,400 119 Rockwell Automation 7,700 523 Rockwell Collins 132 10 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 5 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares $ Thousands) - -------------------------------------------------------------------------------- Roper Industries 52 $ 3 RR Donnelley & Sons 1,500 55 Ryder System 3,200 139 Saia* 2,400 31 Shaw Group* 400 25 SPX 1,229 125 Steelcase, Cl A 17,700 268 Stericycle* 8,302 489 Sunpower, Cl A (B)* 300 37 Teleflex 300 18 Terex* 2,200 142 Textron 500 35 Thomas & Betts* 3,800 207 Timken 1,000 32 Toro 1,000 56 Trane 500 18 Trinity Industries (B) 5,200 132 Tyco International 2,300 92 UAL* 100 4 Union Pacific 1,481 187 United Parcel Service, Cl B 24,908 1,835 United Rentals (B)* 1,300 30 United Technologies 24,499 1,832 Waste Management 6,500 223 WW Grainger 200 18 -------------- 34,967 -------------- INFORMATION TECHNOLOGY -- 16.8% Accenture, Cl A (B) 6,400 221 Activision* 2,200 49 ADC Telecommunications* 1,900 31 Adobe Systems* 4,832 204 Advent Software (B)* 1,400 71 Agilent Technologies* 14,300 541 Alliance Data Systems (B)* 1,400 109 Analog Devices 2,200 68 Apple* 23,157 4,220 Applied Materials 7,740 146 Arrow Electronics* 7,265 269 Autodesk* 700 33 Automatic Data Processing 8,946 403 Avnet* 10,700 369 BMC Software* 5,021 166 Cadence Design Systems (B)* 16,496 274 Check Point Software Technologies* 6,600 151 Ciena* 1,000 44 Cisco Systems* 116,420 3,262 Citrix Systems* 1,100 41 CommScope* 2,500 101 Computer Sciences* 5,500 290 Compuware* 10,700 88 Cree (B)* 800 20 Cypress Semiconductor* 1,900 63 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Dell* 3,800 $ 93 Diebold 1,400 47 DST Systems* 922 78 eBay* 77,600 2,602 Electronic Arts (B)* 28,556 1,604 Electronic Data Systems 7,500 152 EMC* 7,000 135 F5 Networks* 1,100 29 Factset Research Systems 1,000 63 Fidelity National Information Services 3,951 171 Google, Cl A* 10,935 7,578 Harris 1,800 113 Hewitt Associates, Cl A* 3,700 139 Hewlett-Packard 55,660 2,848 Ingram Micro, Cl A* 3,600 72 Integrated Device Technology* 8,300 101 Intel 104,586 2,728 International Business Machines (B) 25,936 2,728 Intersil, Cl A 11,200 279 Intuit* 78,000 2,287 Jabil Circuit 3,000 51 Juniper Networks* 32,700 972 Kla-Tencor 200 10 Lam Research* 8,800 403 Linear Technology (B) 21,567 657 Mastercard, Cl A 1,900 381 McAfee* 3,800 148 MEMC Electronic Materials* 1,754 136 Mettler Toledo International* 1,265 147 Microchip Technology 1,300 37 Microsoft 153,034 5,142 Motorola 12,900 206 MPS Group* 2,000 22 NAVTEQ* 1,000 75 NCR* 2,500 60 Network Appliance* 13,800 341 Nvidia* 10,150 320 Oracle* 24,511 495 Paychex (B) 54,000 2,106 Phoenix Technologies* 2,300 31 Qualcomm 124,837 5,091 Red Hat* 2,200 44 Research In Motion* 44,270 5,039 SanDisk (B)* 28,500 1,067 Sanmina-SCI* 34,739 61 Seagate Technology (B) 110,500 2,850 Silicon Laboratories* 300 11 SYKES Enterprises* 2,500 46 Symantec (B)* 27,840 495 Synopsys* 3,109 76 Tech Data* 2,816 106 Teradata* 54,500 1,415 Texas Instruments 9,532 301 Trimble Navigation (B)* 900 33 - -------------------------------------------------------------------------------- 6 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Tyco Electronics* 1,500 $ 56 Varian Semiconductor Equipment Associates* 2,200 91 VeriFone Holdings* 200 10 VeriSign* 1,400 57 Vishay Intertechnology* 18,400 230 VMware, Cl A (B)* 200 18 Western Digital* 6,300 174 Western Union 72,772 1,645 Xerox* 48,679 822 Yahoo! (B)* 21,061 565 Zoran* 10,200 223 -------------- 67,347 -------------- MATERIALS -- 3.3% Air Products & Chemicals 300 30 AK Steel Holding* 4,000 178 Albemarle 1,300 57 Alcoa 32,200 1,171 Allegheny Technologies 1,400 137 Ball 1,500 69 Cabot 400 14 Carpenter Technology 2,400 181 Celanese, Ser A 4,700 187 Cleveland-Cliffs 1,100 99 Crown Holdings* 3,200 82 Domtar* 13,000 99 Dow Chemical 41,340 1,734 E.I. Du Pont de Nemours 14,965 691 Eastman Chemical 4,200 270 FMC 300 16 Freeport-McMoRan Copper & Gold, Cl B 308 31 Huntsman 1,900 48 International Flavors & Fragrances 2,200 110 International Paper 23,000 776 Lubrizol 7,803 501 Lyondell Chemical 3,800 179 Martin Marietta Materials (B) 1,600 215 MeadWestvaco 500 16 Methanex 6,000 179 Monsanto 1,492 148 Mosaic* 3,700 256 Nalco Holding 4,900 117 Newmont Mining 1,300 65 Nova Chemicals 3,500 113 Nucor 11,500 681 Olin 9,300 195 Owens-Illinois* 5,600 251 Pactiv* 4,500 114 PPG Industries 3,100 213 Praxair 23,051 1,968 Reliance Steel & Aluminum 1,700 88 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Rohm & Haas 1,700 $ 92 Sealed Air 260 6 Smurfit-Stone Container* 6,100 67 Sonoco Products 6,076 185 Southern Copper (B) 1,900 210 Steel Dynamics 600 30 Temple-Inland 4,600 211 United States Steel 6,300 616 Valspar 11,600 261 Vulcan Materials (B) 2,697 240 Weyerhaeuser 3,000 220 -------------- 13,417 -------------- TELECOMMUNICATION SERVICES -- 4.4% American Tower, Cl A* 20,407 929 AT&T 198,597 7,589 Atlantic Tele-Network 500 19 CenturyTel 7,929 338 Citizens Communications (B) 7,218 94 Crown Castle International* 53,043 2,225 Embarq 2,499 127 Leap Wireless International* 1,200 42 Sprint Nextel 123,646 1,919 Telephone & Data Systems 3,100 193 Verizon Communications 88,733 3,834 Vodafone Group ADR* 1,000 37 Windstream 13,300 172 -------------- 17,518 -------------- UTILITIES -- 3.2% AES* 26,500 579 Allegheny Energy* 522 32 Alliant Energy 6,700 278 Ameren (B) 9,600 517 American Electric Power 27,331 1,303 Atmos Energy 7,000 183 Centerpoint Energy (B) 11,600 207 CMS Energy 8,850 154 Consolidated Edison (B) 6,400 310 Constellation Energy Group 4,599 461 Dominion Resources (B) 8,704 411 DTE Energy (B) 13,500 662 Duke Energy 12,200 241 Dynegy, Cl A* 11,900 91 Edison International 6,000 336 Energen 2,100 134 Entergy 3,900 466 Equitable Resources 3,500 185 Exelon 1,054 85 FirstEnergy 18,103 1,241 FPL Group 6,600 460 MDU Resources Group 121 3 Mirant (B)* 10,000 386 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 7 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- National Fuel Gas 1,400 $ 67 Northeast Utilities 2,700 85 NRG Energy (B)* 9,686 411 Oneok 2,700 126 Pepco Holdings 11,200 315 PG&E 10,819 501 Portland General Electric 900 24 PPL 4,765 243 Progress Energy 2,600 127 Public Service Enterprise Group 6,720 643 Questar 500 27 Reliant Energy* 22,600 589 Sempra Energy 1,967 123 Southern 539 20 UGI 1,900 50 Wisconsin Energy 4,700 225 Xcel Energy (B) 21,945 506 -------------- 12,807 -------------- Total Common Stock (Cost $317,148) ($ Thousands) 389,106 -------------- CORPORATE OBLIGATION (C) (E) -- 0.1% FINANCIALS -- 0.1% SLM MTN 4.660%, 12/17/07 $ 563 563 -------------- Total Corporate Obligation (Cost $563) ($ Thousands) 563 -------------- Number of Warrants ---------- WARRANTS -- 0.0% FINANCIALS -- 0.0% Lucent Technologies, Expires 12/10/07* 758 -- -------------- Total Warrants (Cost $--) ($ Thousands) -- -------------- CASH EQUIVALENTS -- 10.6% First Union Cash Management Program, 4.370%** 811,038 811 SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%**++ 10,589,267 10,589 SEI Liquidity Fund L.P., 5.110%**++ (C) 31,260,121 31,260 -------------- Total Cash Equivalents (Cost $42,660) ($ Thousands) 42,660 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- U.S. TREASURY OBLIGATION (A) (D) -- 0.2% U.S. Treasury Bill 3.023%, 02/21/08 $ 975 $ 969 -------------- Total U.S. Treasury Obligation (Cost $969) ($ Thousands) 969 -------------- Total Investments -- 107.7% (Cost $361,340) ($ Thousands) $ 433,298 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------- UNREALIZED TYPE OF NUMBER OF EXPIRATION DEPRECIATION CONTRACT CONTRACTS DATE ($ THOUSANDS) - -------------------------------------------------------------------------- S&P 500 Composite Index 21 Dec-2007 $(162) S&P Mid 400 Index E-Mini 14 Dec-2007 (32) ----- $(194) ===== Percentages are based on Net Assets of $402,155 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $30,978 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of November 30, 2007 was $31,823 ($ Thousands). (D) The rate reported is the effective yield at time of purchase. (E) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. ADR -- American Depositary Receipt Cl -- Class L.P. -- Limited Partnership MTN -- Medium Term Note Ser -- Series Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 8 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Large Cap Diversified Alpha Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Information Technology 15.7% Mutual Fund 14.0% Financials 12.9% Health Care 11.2% Consumer Discretionary 10.6% Industrials 9.8% Energy 8.1% Consumer Staples 6.7% Materials 3.5% Telecommunication Services 3.0% Utilities 2.5% Short-Term Investment 1.1% U.S. Treasury Obligations 0.9% +++ Percentages based on total investments. - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 95.8% CONSUMER DISCRETIONARY -- 12.0% Abercrombie & Fitch, Cl A (B) 6,300 $ 517 Amazon.com* 6,926 627 American Eagle Outfitters 2,800 64 Amerigon* 2,800 51 AnnTaylor Stores* (B) 10,820 330 Apollo Group, Cl A* 900 69 Asbury Automotive Group 5,700 95 Autozone* 1,700 190 Best Buy (B) 40,165 2,050 Big Lots* (B) 41,853 781 BorgWarner 900 87 Brinker International (B) 33,600 774 Cablevision Systems, Cl A* (B) 26,906 727 Career Education* 3,100 89 Carmax* 1,200 27 Carnival 400 18 CBS, Cl B 11,100 305 Central European Media Entertainment, Cl A* 500 55 Cheesecake Factory* (B) 18,600 433 Choice Hotels International 307 11 Christopher & Banks 6,800 110 Clear Channel Communications 5,538 199 Coach* (B) 17,800 661 Coldwater Creek* 272 2 Comcast, Cl A* (B) 40,726 837 CROCS* 3,400 133 Darden Restaurants (B) 9,500 378 DIRECTV Group* (B) 85,944 2,137 Discovery Holding, Cl A* 13,200 323 Dollar Tree Stores* (B) 28,000 803 Dow Jones 2,255 135 DreamWorks Animation SKG, Cl A* 600 16 Eastman Kodak (B) 16,320 383 EchoStar Communications, Cl A* (B) 18,699 806 Expedia* 10,073 328 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Family Dollar Stores 2,900 $ 68 Ford Motor* (B) 87,643 658 GameStop, Cl A* 3,000 172 Gannett 2,200 81 Gap 3,093 63 Garmin* 700 75 General Motors (B) 16,613 496 Gentex (B) 24,100 478 Genuine Parts 1,500 72 Goodyear Tire & Rubber* 18,088 520 Group 1 Automotive 800 22 Guess?* 2,800 131 Gymboree* 9,600 320 Hanesbrands* (B) 21,528 608 Harley-Davidson 4,600 221 Harman International Industries 1,600 118 Harrah's Entertainment 2,827 249 Hasbro (B) 30,219 839 Home Depot (B) 22,700 648 IAC/InterActive* 11,883 331 Idearc 9,060 171 International Game Technology 60,000 2,620 Interpublic Group* 78,584 746 ITT Educational Services* 1,700 192 J Crew Group* 4,600 221 J.C. Penney (B) 7,600 335 Jack in the Box* 7,500 225 Jarden* 2,405 63 John Wiley & Sons, Cl A 900 38 Johnson Controls (B) 13,184 509 Jones Apparel Group 2,800 52 Kimball International, Cl B 2,000 27 Kohl's* (B) 2,443 120 Lamar Advertising, Cl A 8,600 447 Leggett & Platt 2,400 49 Liberty Global, Cl A* (B) 26,700 1,085 Liberty Media Holding-Capital, Ser A* 4,700 560 Liberty Media Holding-Interactive, Cl A* 600 12 Limited Brands 7,700 155 Magna International, Cl A* (B) 5,800 489 Marriott International, Cl A (B) 17,913 672 Marvel Entertainment* 3,000 83 Mattel 17,400 348 McDonald's (B) 30,300 1,772 McGraw-Hill (B) 9,000 442 Meredith 1,400 77 MGM Mirage* 28,905 2,500 Mohawk Industries* 1,200 97 Morgans Hotel Group* 4,900 91 Newell Rubbermaid 2,100 56 News, Cl A 18,100 381 Nike, Cl B (B) 14,000 919 Nordstrom 1,000 34 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 9 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- NVR* 100 $ 49 Office Depot* 500 9 Omnicom Group 2,900 141 Orient-Express Hotels, Cl A 400 25 Panera Bread, Cl A* (B) 8,300 333 Papa John's International* 1,200 28 Penn National Gaming* 2,500 149 Penske Auto Group (B) 27,002 540 PetSmart 5,100 145 Phillips-Van Heusen 7,900 335 Polo Ralph Lauren 2,600 179 R.H. Donnelley* 3,800 169 RadioShack 7,200 133 Regal Entertainment Group, Cl A 1,600 32 Rent-A-Center* 3,400 48 Reuters Group ADR* 18,000 1,348 Ross Stores 1,200 32 Royal Caribbean Cruises 300 12 Saks 4,600 95 Service International 11,600 154 Shaw Communications, Cl B* 13,400 332 Sherwin-Williams (B) 10,400 653 Snap-On (B) 9,245 452 Sonic* 3,000 73 Stamps.com* 800 10 Staples* 92,000 2,180 Target 3,434 206 Thor Industries 9,300 328 Tiffany 2,300 107 Tim Hortons 1,483 57 Time Warner (B) 90,500 1,562 Time Warner Cable, Cl A* 5,186 135 TRW Automotive Holdings* 22,179 498 Urban Outfitters* 1,200 31 Valassis Communications* 4,500 56 VF 6,129 458 Viacom, Cl B* (B) 11,900 500 WABCO Holdings* 366 17 Walt Disney (B) 65,391 2,168 Warnaco Group* 7,700 284 Weight Watchers International 40,300 1,924 Whirlpool (B) 4,080 330 Williams-Sonoma 6,500 189 Winnebago Industries 2,700 58 Wyndham Worldwide (B) 22,601 659 Wynn Resorts* (B) 3,400 432 Yum! Brands (B) 33,900 1,259 -------------- 55,223 -------------- CONSUMER STAPLES -- 7.6% Alberto-Culver 3,800 97 Altria Group (B) 27,319 2,119 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Anheuser-Busch (B) 17,400 $ 917 Archer-Daniels-Midland (B) 42,708 1,552 Avon Products 4,400 181 BJ's Wholesale Club* 514 19 Brown-Forman, Cl B 300 21 Bunge 700 79 Campbell Soup 700 26 Church & Dwight 2,400 135 Clorox 7,100 461 Coca-Cola 15,700 975 Coca-Cola Enterprises 5,981 155 Colgate-Palmolive 5,500 440 ConAgra Foods 4,100 103 Constellation Brands, Cl A* 4,085 96 Corn Products International 10,975 432 Costco Wholesale 1,052 71 CVS 3,004 120 Dean Foods 18,556 463 Energizer Holdings* 2,500 284 Estee Lauder, Cl A 8,600 386 General Mills (B) 11,000 662 Hansen Natural* 300 13 Herbalife (B) 12,900 540 HJ Heinz 3,500 165 JM Smucker 2,700 133 Kellogg 3,100 167 Kimberly-Clark (B) 12,000 838 Kraft Foods, Cl A 2,517 87 Kroger (B) 85,524 2,459 Loews - Carolina 3,700 329 McCormick 700 27 Molson Coors Brewing, Cl B 8,400 452 NBTY* (B) 11,000 329 Pepsi Bottling Group (B) 19,000 811 PepsiAmericas 1,200 41 PepsiCo (B) 26,800 2,068 Procter & Gamble (B) 74,394 5,505 Ralcorp Holdings* 300 18 Reynolds American (B) 20,785 1,455 Rite Aid* (B) 114,659 426 Safeway (B) 32,300 1,124 Sara Lee 1,200 20 Smithfield Foods* 8,549 257 Supervalu 18,373 769 Sysco 24,387 793 Tyson Foods, Cl A (B) 46,063 687 UST 2,500 145 Wal-Mart Stores (B) 69,116 3,311 Walgreen (B) 60,500 2,214 WM Wrigley Jr. 3,000 192 -------------- 35,169 -------------- - -------------------------------------------------------------------------------- 10 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- ENERGY -- 9.3% Apache 526 $ 51 Baker Hughes 400 32 Cabot Oil & Gas 3,000 103 Cameron International* (B) 8,300 774 Cheniere Energy* 1,900 66 Chesapeake Energy (B) 14,500 549 Chevron (B) 73,533 6,454 Cimarex Energy 7,200 278 CNX Gas* 608 19 ConocoPhillips (B) 39,424 3,156 Denbury Resources* 300 16 Devon Energy 4,476 371 Diamond Offshore Drilling 500 58 Dresser-Rand Group* 4,881 174 EnCana (B) 8,800 574 Exxon Mobil (B) 139,992 12,482 FMC Technologies* 500 28 Forest Oil* 780 37 Frontier Oil (B) 11,200 495 Global Industries* 6,400 142 Grant Prideco* 600 29 Gulf Island Fabrication 1,300 41 Halliburton (B) 36,425 1,334 Helmerich & Payne (B) 22,900 791 Hess (B) 15,353 1,093 Holly (B) 11,300 547 Hornbeck Offshore Services* (B) 10,300 424 Marathon Oil (B) 42,941 2,400 Murphy Oil 13,623 974 National Oilwell Varco* 11,444 780 Noble (B) 10,700 558 Noble Energy 700 50 Occidental Petroleum (B) 13,292 927 Oceaneering International* 300 19 Patriot Coal* 1,456 49 Patterson-UTI Energy (B) 18,000 339 Petro-Canada* (B) 11,200 542 Plains Exploration & Production* 377 19 Pride International* (B) 12,895 425 Quicksilver Resources* 300 15 Range Resources 1,000 41 Schlumberger (B) 11,717 1,095 SEACOR Holdings* 2,100 190 Smith International 1,400 88 Southwestern Energy* 900 45 Sunoco (B) 14,200 953 Superior Energy Services* 1,400 49 Teekay Shipping 1,200 68 Tesoro 5,300 261 Tidewater 1,200 59 Transocean 3,412 468 Unit* 400 18 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Valero Energy (B) 21,600 $ 1,406 Weatherford International* 1,745 109 Williams (B) 14,931 518 XTO Energy 1,800 111 -------------- 42,694 -------------- FINANCIALS -- 14.8% ACE (B) 11,175 669 Aflac 2,500 157 Alleghany* 437 179 Allied Capital 1,524 37 Allied World Assurance Holdings 300 14 Allstate (B) 24,500 1,252 AMBAC Financial Group 5,800 158 American Capital Strategies 1,200 45 American Express 4,500 265 American Financial Group (B) 25,804 754 American International Group (B) 32,900 1,913 American National Insurance 568 68 AmeriCredit* 16,033 184 Ameriprise Financial 1,653 97 Annaly Capital Management+ (B) 39,301 676 AON (B) 19,554 977 Arch Capital Group* 500 35 Arthur J. Gallagher 100 3 Ashford Hospitality Trust+ 25,800 200 Assurant (B) 9,853 645 AvalonBay Communities+ (B) 4,177 415 Axis Capital Holdings 23,400 893 Bank of America (B) 68,061 3,140 Bank of New York Mellon (B) 22,006 1,055 BankUnited Financial, Cl A 1,600 13 BB&T 3,900 141 BlackRock (B) 4,111 816 BOK Financial 965 53 Boston Properties+ 3,446 339 Brandywine Realty Trust+ (B) 16,400 336 BRE Properties, Cl A+ 1,982 88 Camden Property Trust+ 360 19 Capital One Financial (B) 12,707 677 CBL & Associates Properties+ 900 26 Charles Schwab (B) 65,089 1,582 Chubb (B) 21,800 1,189 CIT Group 7,800 208 Citigroup (B) 72,500 2,414 City National 500 32 CME Group 4,672 3,077 Colonial BancGroup 1,900 30 Colonial Properties Trust+ 300 7 Comerica (B) 15,700 719 Credicorp 2,800 199 Crystal River Capital+ 1,000 14 Discover Financial Services* (B) 11,061 192 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 11 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Eaton Vance (B) 13,400 $ 586 Endurance Specialty Holdings 5,100 206 Everest Re Group (B) 6,910 725 Fairfax Financial 1,100 315 Fannie Mae 2,000 77 Federated Investors, Cl B 8,600 351 Fidelity National Financial, Cl A 2,857 45 First American 3,700 127 First Citizens BancShares, Cl A 630 99 Forest City Enterprises, Cl A 2,700 135 Franklin Resources (B) 13,096 1,613 General Growth Properties+ (B) 9,200 427 Genworth Financial, Cl A 2,600 68 Goldman Sachs Group (B) 10,500 2,380 Hanover Insurance Group 1,700 77 Hartford Financial Services Group (B) 7,710 735 Hospitality Properties Trust+ 2,700 99 Host Hotels & Resorts+ 12,731 244 Hudson City Bancorp (B) 30,900 470 Huntington Bancshares 17,600 276 IntercontinentalExchange* 17,900 2,989 Investment Technology Group* 2,559 117 iStar Financial+ (B) 12,500 366 Janus Capital Group (B) 36,759 1,234 Jones Lang LaSalle (B) 10,909 917 JPMorgan Chase (B) 119,298 5,442 Keycorp (B) 23,300 614 Kilroy Realty+ 527 29 Legg Mason 2,700 206 Lehman Brothers Holdings (B) 3,700 232 Leucadia National 2,900 136 Loews (B) 47,588 2,274 Markel* 400 193 Marsh & McLennan 8,083 203 MBIA (B) 7,200 263 Merrill Lynch (B) 12,700 761 Metlife (B) 11,843 777 MF Global* 8,400 242 Montpelier Re Holdings 6,800 118 Moody's 7,400 279 Morgan Stanley (B) 25,612 1,350 Nationwide Financial Services, Cl A 1,300 58 New York Community Bancorp 900 17 NewStar Financial* 1,500 14 Northern Trust (B) 7,062 572 NorthStar Realty Finance+ 36,100 331 PartnerRe 13,054 1,078 Platinum Underwriters Holdings 600 22 PNC Financial Services Group (B) 12,987 951 Popular 14,900 143 Prudential Financial 4,048 381 Public Storage+ 5 -- Rayonier+ (B) 16,536 767 Regions Financial 6,544 173 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Safeco (B) 9,800 $ 566 SL Green Realty+ 549 57 SLM 1,734 66 Stancorp Financial Group 6,900 359 State Street 1,343 107 SunTrust Banks 900 63 T. Rowe Price Group 100 6 TD Ameritrade Holding* (B) 23,700 443 TFS Financial* 2,887 36 Torchmark 700 43 Transatlantic Holdings 5,528 411 Travelers (B) 58,445 3,104 UnionBanCal 8,100 437 UnumProvident 4,500 112 US Bancorp 9,800 324 Wachovia (B) 20,989 903 Washington Mutual (B) 31,800 620 Wells Fargo (B) 42,400 1,375 White Mountains Insurance Group 272 140 XL Capital, Cl A (B) 6,500 380 -------------- 67,858 -------------- HEALTH CARE -- 12.8% Abbott Laboratories (B) 15,700 903 Abraxis Bioscience* 143 8 Aetna (B) 15,871 887 Allergan 42,300 2,836 AmerisourceBergen (B) 44,255 2,008 Amgen* 9,817 542 APP Pharmaceuticals* 571 7 Applera -- Applied Biosystems Group 2,847 97 Aspect Medical Systems* 900 13 Baxter International (B) 16,272 974 Beckman Coulter 600 42 Becton Dickinson (B) 8,300 687 Biogen Idec* (B) 5,100 378 Biovail* (B) 18,000 275 Bristol-Myers Squibb 20,951 621 C.R. Bard 300 25 Cardinal Health (B) 36,216 2,193 Celgene* 2,400 148 Cerner* 5,252 314 Charles River Laboratories International* 5,300 337 Chemed 3,300 179 Cigna (B) 42,622 2,285 Covance* (B) 5,300 463 Coventry Health Care* 300 17 Covidien* (B) 14,920 598 Cubist Pharmaceuticals* 12,200 259 Cutera* 4,400 67 Eli Lilly (B) 14,134 748 Endo Pharmaceuticals Holdings* (B) 21,143 580 Express Scripts* (B) 19,499 1,321 - -------------------------------------------------------------------------------- 12 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Forest Laboratories* 1,300 $ 50 Gen-Probe* 300 20 Genentech* (B) 52,903 4,034 Gilead Sciences* (B) 22,700 1,056 Health Net* (B) 32,914 1,599 Hillenbrand Industries 6,340 341 HLTH* 4,900 69 Hologic* 2,600 173 Hospira* 2,927 127 Humana* (B) 13,386 1,031 Idexx Laboratories* (B) 7,200 436 ImClone Systems* (B) 300 14 Intuitive Surgical* (B) 2,300 754 Invitrogen* (B) 11,900 1,154 Johnson & Johnson (B) 44,300 3,001 Kinetic Concepts* 2,500 147 King Pharmaceuticals* 29,700 315 Laboratory of America Holdings* 6,038 439 Manor Care 2,200 142 McKesson (B) 28,218 1,883 Medco Health Solutions* (B) 25,884 2,588 Medtronic (B) 20,100 1,022 Mentor (B) 9,400 353 Merck (B) 24,600 1,460 Millennium Pharmaceuticals* 21,832 322 OSI Pharmaceuticals* 8,500 396 PDL BioPharma* 18,500 328 PerkinElmer 7,783 212 Pfizer (B) 173,150 4,114 Pharmaceutical Product Development 400 17 Possis Medical* 1,100 17 Quest Diagnostics 300 16 Quidel* 12,000 227 Respironics* 400 20 Schering-Plough 22,338 699 Sierra Health Services* 6,842 286 Spectranetics* 5,900 89 St. Jude Medical* 1,400 56 Stryker* 4,200 305 Tenet Healthcare* 5,246 29 Thermo Fisher Scientific* 6,300 363 UnitedHealth Group (B) 78,800 4,334 VCA Antech* 2,800 115 Warner Chilcott, Cl A* 2,100 38 Waters* (B) 8,100 632 Watson Pharmaceuticals* 600 18 WebMD Health, Cl A* 1,999 85 WellCare Health Plans* 1,200 47 WellPoint* (B) 11,974 1,008 Wyeth (B) 19,704 967 Zimmer Holdings* 30,900 2,000 -------------- 58,760 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- INDUSTRIALS -- 11.1% 3M (B) 6,500 $ 541 Acuity Brands 2,300 91 Administaff 2,300 75 AGCO* 7,300 503 Aircastle 600 16 Alexander & Baldwin 727 37 Alliant Techsystems* 400 47 Allied Waste Industries* (B) 34,201 390 AMR* 5,882 125 Apogee Enterprises 2,600 58 Armstrong World Industries* 4,165 178 Avis Budget Group* 1,800 27 BE Aerospace* 2,200 103 Boeing (B) 42,894 3,969 Brink's 100 6 Burlington Northern Santa Fe 300 25 C.H. Robinson Worldwide (B) 13,071 674 Carlisle 5,548 221 Caterpillar (B) 12,300 884 ChoicePoint* (B) 8,800 333 Con-way 1,200 51 Cooper Industries, Cl A 900 45 Copart* 6,500 243 Corporate Executive Board 3,800 255 Corrections of America* 4,700 143 CRA International* 500 23 Crane 2,935 132 CSX 5,600 235 Cummins (B) 7,900 924 Danaher 200 17 Deere 1,500 258 Delta Air Lines* (B) 34,120 674 Donaldson 130 6 Dun & Bradstreet 1,000 89 Eaton (B) 9,100 813 Emerson Electric 1,200 68 Expeditors International Washington 48,000 2,252 Fastenal 600 24 FedEx (B) 11,816 1,164 First Solar* 2,200 522 Flowserve (B) 6,042 569 Fluor (B) 5,436 800 Foster Wheeler* 1,300 194 Gardner Denver* 4,100 136 GATX 1,166 43 General Cable* 4,479 333 General Dynamics 1,900 169 General Electric (B) 168,185 6,440 Goodrich (B) 9,600 684 Granite Construction 400 16 Harsco 2,938 177 Hertz Global Holdings* 7,077 135 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 13 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Honeywell International (B) 26,604 $ 1,506 Hubbell, Cl B 7,300 401 Illinois Tool Works 900 50 Ingersoll-Rand, Cl A (B) 12,500 646 ITT 4,100 264 Jacobs Engineering Group* (B) 7,514 629 JB Hunt Transport Services 3,200 84 Kansas City Southern* 400 14 KBR* 6,446 257 Kennametal 400 31 L-3 Communications Holdings 5,100 564 Labor Ready* 9,400 141 Landstar System 1,000 40 Lennox International 12,677 429 Lockheed Martin (B) 14,652 1,622 Manitowoc 2,200 96 Manpower (B) 10,275 628 Masco 21,400 479 McDermott International* 900 47 MSC Industrial Direct, Cl A 6,000 259 Northrop Grumman (B) 17,505 1,379 Northwest Airlines* 9,995 182 Nuco2* 900 25 Oshkosh Truck 800 39 Owens Corning* 9,014 198 Paccar 3,375 171 Pall 4,400 168 Parker Hannifin (B) 12,187 968 Pentair 1,000 34 PeopleSupport* 3,500 49 Polypore International* 700 12 Precision Castparts 7,500 1,105 Quanta Services* 4,800 131 Raytheon (B) 21,309 1,318 Republic Services 8,500 282 Robert Half International 13,000 351 Rockwell Automation (B) 10,700 726 Rockwell Collins 100 7 RR Donnelley & Sons (B) 17,755 651 Ryder System (B) 1,984 86 Shaw Group* 3,773 239 Spirit Aerosystems Holdings, Cl A* 872 31 SPX (B) 3,368 343 Steelcase, Cl A 25,555 387 Stericycle* (B) 10,000 589 Sunpower, Cl A* 400 50 Teleflex 900 54 Terex* 3,655 236 Textron 500 35 Thomas & Betts* (B) 12,200 663 Timken (B) 16,961 541 Toro 1,100 61 Trane 700 26 Trinity Industries 9,400 238 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Tyco International (B) 9,060 $ 364 UAL* 100 4 Union Pacific 6,500 820 United Parcel Service, Cl B 34,071 2,510 United Rentals* 1,600 37 United Technologies 5,300 396 URS* (B) 8,657 498 Waste Management 10,495 360 WESCO International* 4,840 196 WW Grainger (B) 5,108 451 -------------- 51,135 -------------- INFORMATION TECHNOLOGY -- 18.0% Accenture, Cl A 11,502 397 Activision* 3,100 69 ADC Telecommunications* 2,100 35 Adobe Systems* 1,300 55 Advent Software* 1,700 86 Agilent Technologies* (B) 13,477 510 Alliance Data Systems* 1,700 132 Amdocs* (B) 13,756 455 Analog Devices 2,400 74 Anaren* 1,300 20 Apple* (B) 16,041 2,923 Applied Materials (B) 20,600 388 Arrow Electronics* (B) 29,685 1,099 Atmel* 34,251 150 Autodesk* 600 28 Automatic Data Processing (B) 17,200 775 Avnet* (B) 22,171 765 AVX 392 6 BMC Software* 18,700 619 Broadcom, Cl A* 9,774 261 Cadence Design Systems* (B) 23,300 387 Check Point Software Technologies* (B) 21,500 491 Checkfree* 2,544 121 Ciena* 6,200 273 Cisco Systems* (B) 88,909 2,491 Cognos* (B) 10,900 624 CommScope* 4,100 166 Computer Sciences* (B) 15,695 829 Compuware* (B) 63,400 524 Convergys* 7,067 115 Corning 1,600 39 Cree* 900 22 Cypress Semiconductor* 2,000 66 Dell* 3,054 75 Diebold 1,500 51 DST Systems* 1,200 102 Earthlink* 9,900 67 eBay* (B) 114,792 3,849 Electronic Data Systems (B) 49,964 1,012 EMC* (B) 16,914 326 - -------------------------------------------------------------------------------- 14 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- F5 Networks* 1,200 $ 32 Factset Research Systems 3,000 188 Fair Isaac 2,200 81 Fairchild Semiconductor International* (B) 38,212 606 Fidelity National Information Services 4,644 201 Global Payments 7,400 320 Google, Cl A* (B) 9,175 6,358 Harris (B) 7,900 496 Hewitt Associates, Cl A* 11,400 427 Hewlett-Packard (B) 99,175 5,074 Ingram Micro, Cl A* (B) 45,075 897 Integrated Device Technology* 32,200 391 Intel (B) 71,237 1,858 International Business Machines (B) 25,178 2,648 Intersil, Cl A (B) 16,100 401 Intuit* (B) 95,100 2,788 Jabil Circuit 39,260 665 JDS Uniphase* 4,638 62 Juniper Networks* (B) 40,200 1,195 Kla-Tencor 100 5 Lam Research* (B) 15,900 729 Lexmark International, Cl A* 9,500 331 Linear Technology 10,000 305 Mastercard, Cl A 2,922 586 McAfee* 5,100 199 MEMC Electronic Materials* 2,400 186 Mettler Toledo International* 3,100 361 Microchip Technology 900 26 Microsoft (B) 167,452 5,626 MoneyGram International 9,674 149 Motorola (B) 40,805 652 National Instruments 400 13 NAVTEQ* 1,000 75 NCR* 18,570 445 Network Appliance* (B) 17,100 423 Nvidia* 15,200 479 Oracle* (B) 67,000 1,352 Paychex 55,000 2,145 QLogic* 19,500 264 Qualcomm (B) 104,800 4,274 Red Hat* 2,500 50 Research In Motion* 30,400 3,460 SanDisk* 32,500 1,217 Seagate Technology (B) 119,000 3,069 Semtech* 700 11 Silicon Laboratories* (B) 12,400 461 SPSS* 2,100 76 Sun Microsystems* (B) 25,806 536 SYKES Enterprises* 6,000 111 Symantec* (B) 53,700 956 Synopsys* 10,615 261 Tech Data* (B) 22,089 831 Teradata* 76,702 1,991 Texas Instruments (B) 75,425 2,381 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Trimble Navigation* 600 $ 22 Tyco Electronics* (B) 15,351 574 Unisys* 69,583 345 Varian Semiconductor Equipment Associates* (B) 11,700 486 VeriFone Holdings* 400 19 VeriSign* 3,574 146 Vignette* 2,100 32 Vishay Intertechnology* 28,028 350 VMware, Cl A* 200 18 Western Union (B) 6,766 153 Xerox* (B) 45,582 769 Zebra Technologies, Cl A* 6,600 255 Zoran* 7,600 166 -------------- 82,536 -------------- MATERIALS -- 4.0% Air Products & Chemicals 200 20 Airgas 1,661 82 AK Steel Holding* 4,600 205 Albemarle 1,600 71 Alcoa (B) 17,776 647 Allegheny Technologies 1,600 156 Ashland 13,042 642 Ball 5,800 268 Cabot 3,096 107 Carpenter Technology 8,000 604 Celanese, Ser A 5,500 218 Chemtura 4,705 35 Cleveland-Cliffs 1,400 126 Commercial Metals 2,600 80 Crown Holdings* (B) 33,236 853 Domtar* 7,900 60 Dow Chemical (B) 20,900 877 E.I. Du Pont de Nemours 5,156 238 Eastman Chemical 4,255 273 Ecolab 5,100 244 FMC (B) 2,711 148 Freeport-McMoRan Copper & Gold, Cl B 3,293 326 Huntsman 1,700 43 International Flavors & Fragrances 2,700 135 International Paper (B) 20,112 679 Lubrizol 1,800 116 Lyondell Chemical 4,400 208 Martin Marietta Materials 3,462 466 MeadWestvaco 500 16 Methanex 11,500 342 Monsanto (B) 5,952 591 Mosaic* 4,700 325 Nalco Holding 13,627 327 Newmont Mining 3,300 164 Nova Chemicals (B) 11,600 375 Nucor (B) 12,600 746 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 15 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Olin 8,700 $ 182 Owens-Illinois* (B) 7,437 334 Pactiv* 20,027 509 PPG Industries 4,566 313 Praxair 28,600 2,442 Reliance Steel & Aluminum 2,000 103 Rohm & Haas (B) 12,468 678 Scotts Miracle-Gro, Cl A 1,050 39 Sealed Air 700 16 Smurfit-Stone Container* 29,512 325 Sonoco Products 2,300 70 Southern Copper (B) 7,600 841 Steel Dynamics 700 35 Temple-Inland 5,600 257 Terra Industries* 7,000 265 United States Steel 7,600 743 Valspar 6,200 140 Vulcan Materials 3,877 344 Weyerhaeuser 2,100 154 -------------- 18,603 -------------- TELECOMMUNICATION SERVICES -- 3.4% American Tower, Cl A* 6,525 297 AT&T (B) 153,650 5,871 Bell Aliant Regional Communications Income Fund (Canada) 254 7 CenturyTel (B) 12,800 546 Citizens Communications 8,200 106 Crown Castle International* 52,000 2,181 Embarq 2,925 149 Leap Wireless International* 1,900 66 NeuStar, Cl A* 463 15 Qwest Communications International* 60,018 398 Rogers Communications, Cl B* (B) 8,900 372 Sprint Nextel (B) 70,526 1,095 Telephone & Data Systems 3,600 224 US Cellular* (B) 10,545 865 Verizon Communications (B) 64,079 2,769 Windstream (B) 41,050 532 -------------- 15,493 -------------- UTILITIES -- 2.8% AES* 16,200 354 AGL Resources 1,600 59 Allegheny Energy* 600 36 Alliant Energy 10,952 455 American Electric Power 8,700 415 Atmos Energy 5,800 152 Centerpoint Energy 16,600 296 CMS Energy (B) 31,179 543 Consolidated Edison (B) 11,200 543 Constellation Energy Group 3,300 331 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Dominion Resources 6,469 $ 305 DPL 1,613 49 DTE Energy 1,000 49 Duke Energy 20,100 398 Dynegy, Cl A* 14,800 113 Edison International (B) 15,100 845 Energen (B) 8,700 555 Entergy 2,700 323 Equitable Resources 4,100 217 Exelon 1,300 105 FirstEnergy (B) 10,500 720 FPL Group 7,900 551 MDU Resources Group 150 4 Mirant* 13,300 513 National Fuel Gas 2,032 97 NiSource 3,400 63 Northeast Utilities 10,800 341 NRG Energy* 11,000 466 Oneok 3,200 149 Pepco Holdings 1,400 39 PG&E (B) 16,189 749 PPL 5,000 255 Progress Energy 5,100 249 Public Service Enterprise Group (B) 14,305 1,370 Questar 300 16 Reliant Energy* (B) 28,554 744 Sempra Energy 2,300 144 Sierra Pacific Resources 7,100 122 Southern 800 30 Southern Union 2,529 75 UGI 5,800 153 Xcel Energy 4,100 95 -------------- 13,088 -------------- Total Common Stock (Cost $414,657) ($ Thousands) 440,559 -------------- MUTUAL FUND -- 16.0% SEI LIBOR Plus Portfolio, 5.830%++** 7,609,389 73,735 -------------- Total Mutual Fund (Cost $76,029) ($ Thousands) 73,735 -------------- CASH EQUIVALENT -- 1.3% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020% (B)++** 5,944,856 5,945 -------------- Total Cash Equivalent (Cost $5,945) ($ Thousands) 5,945 -------------- - -------------------------------------------------------------------------------- 16 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- U.S. TREASURY OBLIGATIONS (A) -- 1.1% U.S. Treasury Bills 4.864%, 12/13/07 $ 200 $ 200 3.023%, 02/21/08 4,655 4,623 -------------- Total U.S. Treasury Obligations (Cost $4,823) ($ Thousands) 4,823 -------------- Total Investments -- 114.2% (Cost $501,454) ($ Thousands) $ 525,062 ============== COMMON STOCK SOLD SHORT -- (14.8)% CONSUMER DISCRETIONARY -- (3.6)% Advance Auto Parts (9,731) (350) Amazon.com* (2,500) (226) Apollo Group, Cl A* (6,651) (509) Barnes & Noble (5,600) (215) Black And Decker (125) (10) Career Education* (4,056) (117) Carmax* (25,800) (590) Centex (10,500) (219) Central European Media Entertainment, Cl A* (5,589) (613) Circuit City Stores (24,290) (157) Coldwater Creek* (13,100) (108) Corinthian Colleges* (18,200) (318) CROCS* (5,970) (233) CTC Media* (5,700) (137) Dillards, Cl A (10,700) (218) Discovery Holding, Cl A* (11,844) (290) DR Horton (52,632) (630) Dreamworks Animation SKG, Cl A* (8,837) (232) E.W. Scripps, Cl A (500) (22) Eastman Kodak (4,500) (106) Gamestop, Cl A* (6,628) (381) Gannett (3,976) (146) Gentex (43,490) (862) Getty Images* (615) (18) H&R Block (24,900) (490) Harley-Davidson (5,455) (262) Harte-Hanks (5,203) (87) Hearst-Argyle Television (1,845) (36) Home Depot (5,818) (166) Interpublic Group (57,800) (549) J.C. Penney (1,133) (50) KB Home (10,792) (225) Las Vegas Sands* (9,600) (1,089) Lennar, Cl A (38,827) (615) Liberty Media Interactive, Cl A* (6,082) (123) Limited Brands (11,300) (227) Mattel (2,677) (53) MDC Holdings (6,658) (236) MGM Mirage (5,000) (433) - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- News, Cl A (2,800) $ (59) Nordstrom (7,100) (238) O'Reilly Automotive* (12,100) (398) Orient Express Hotels, Cl A (12,200) (755) Pulte Homes (52,476) (536) Quiksilver* (27,200) (288) R.H. Donnelley (3,261) (145) Ryland Group (10,429) (240) Saks (20,600) (424) Sally Beauty Holdings (26,300) (240) Scientific Games, Cl A* (11,900) (385) Sears Holdings* (2,502) (264) Sirius Satellite Radio* (10,834) (41) Target (2,300) (138) Tiffany (5,387) (250) WABCO (2,235) (105) Warner Music Group (28,000) (211) Weight Watchers International (801) (38) Wynn Resorts* (2,111) (268) -------------- (16,371) -------------- CONSUMER STAPLES -- (0.2)% Avon Products (1,317) (54) Bare Escentuals* (5,493) (116) Church & Dwight (698) (39) Clorox (4,712) (306) Hansen Natural* (1,281) (56) Lowes - Carolina (1,555) (138) NBTY* (1,952) (58) -------------- (767) -------------- ENERGY -- (1.9)% Anadarko Petroleum (7,444) (421) Arch Coal (12,700) (481) Baker Hughes (3,200) (257) BJ Services (9,500) (234) Cameco (11,600) (480) CNX Gas* (17,400) (536) Continental Resources* (7,900) (188) Denbury Resources* (10,500) (560) Diamond Offshore Drilling (2,100) (245) Enbridge (13,200) (492) Forest Oil* (6,200) (292) Frontier Oil (3,670) (162) Massey Energy (1,720) (58) Nabors Industries* (908) (24) Oceaneering International* (271) (17) Patterson - UTI Energy (18,001) (339) Peabody Energy (19,300) (1,074) Quicksilver Resources* (13,437) (680) Range Resources (5,300) (216) Rowan (4,300) (152) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 17 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Superior Energy Services* (10,900) $ (380) Teekay Shipping (5,120) (288) Tesoro (2,132) (105) Tetra Technologies* (15,300) (242) TransCanada (13,700) (546) Unit* (2,642) (118) W&T Offshore (7,400) (195) XTO Enegy (1,131) (70) -------------- (8,852) -------------- FINANCIALS -- (2.4)% Affiliated Managers Group* (200) (25) AMB Property+ (5,500) (336) AMBAC Financial Group (8,700) (237) American Capital Strategies (11,500) (433) AvalonBay Communities+ (3,200) (318) Bear Stearns (8,233) (821) Brandywine Realty Trust (2,087) (43) Camden Property Trust+ (2,700) (142) Capital Source (12,470) (209) Capitol Federal Financial (15,600) (529) City National (500) (32) Conseco* (25,000) (321) Countrywide Financial (7,713) (83) Douglas Emmett+ (19,251) (462) Equity Residential+ (2,900) (108) Federal Realty Investment Trust (1,000) (83) Fidelity National Financial, Cl A (48,459) (757) First American (9,200) (314) Fulton Financial (1,100) (14) Hudson City Bancorp (8,023) (122) Huntington Bancshares (1,575) (25) Jefferies Group (10,600) (271) Leucadia National (18,203) (855) Markel* (300) (145) Marsh & McLennan (1,600) (40) MBIA (22,511) (822) MGIC Investment (9,872) (232) Old Republic International (15,001) (225) OneBeacon Insurance Group (291) (6) Peoples United Financial (21,420) (363) Plum Creek Timber+ (2,900) (134) PMI Group (12,745) (169) Popular (8,055) (77) Progressive (5,600) (103) Rayonier+ (800) (37) SL Green Realty+ (2,500) (260) T. Rowe Price Group (4,900) (301) TCF Financial (19,068) (370) Unitrin (2,000) (93) Valley National Bancorp (26,970) (529) - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Ventas (3,687) $ (161) Washington Mutual (7,201) (140) White Mountains Insurance Group (300) (155) -------------- (10,902) -------------- HEALTH CARE -- (2.0)% Abraxis Bioscience* (650) (38) Advanced Medical Optics (3,000) (76) Affymetrix* (10,300) (215) Allergan (4,800) (322) APP Pharmaceuticals* (2,600) (30) Biogen Idec* (1,300) (96) Biomarin Pharmaceutical* (14,500) (399) Brookdale Senior Living (17,183) (569) Cephalon* (3,700) (277) Community Health Care Systems* (2,300) (77) Cooper (15,100) (650) DaVita* (6,300) (390) Health Management Associates, Cl A (20,753) (141) ImClone Systems* (2,500) (113) IMS Health (13,800) (322) Kinetic Concepts* (4,207) (247) LifePoint Hospitals* (17,195) (544) Lincare Holdings* (10,000) (342) McKesson (5,000) (334) Millipore (2,300) (188) Mylan (13,923) (200) Omnicare (14,396) (367) Patterson* (2,200) (71) Pharmaceutical Product Development (24,000) (1,016) Resmed* (21,800) (998) Respironics* (800) (39) Tenet Healthcare* (94,000) (518) Varian Medical Systems* (8,800) (440) VCA Antech* (6,600) (271) Vertex Pharmaceuticals* (3,500) (89) Waters* (957) (75) -------------- (9,454) -------------- INDUSTRIALS -- (1.4)% Aircastle (1,913) (51) Alliant Techsystems* (539) (63) AMR* (16,400) (347) BE Aerospace* (9,200) (432) ChoicePoint* (2,079) (79) Copa Holdings, Cl A (9,605) (347) Corporate Executive Board (7,852) (527) Corrections Corporation of America* (3,000) (92) Covanta Holding* (16,200) (437) Danaher (500) (43) - -------------------------------------------------------------------------------- 18 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- DRS Technologies (1,569) $ (93) Expeditors International Washington (3,400) (160) First Solar* (334) (79) Flowserve (4,000) (376) General Cable (5,500) (409) Graco (10,170) (379) Joy Global (7,600) (441) Kansas City Southern (3,100) (107) McDermott International (1,581) (83) Northwest Airlines* (1,300) (24) Pitney Bowes (15,322) (590) Quanta Services* (4,000) (110) Republic Services (153) (5) Stericycle* (5,618) (331) Sunpower, Cl A* (4,800) (597) Toro (3,516) (196) -------------- (6,398) -------------- INFORMATION TECHNOLOGY -- (2.1)% Advanced Micro Devices* (18,600) (182) Amphenol,Cl A (9,800) (425) Applied Materials (11,700) (220) Brocade Communication Systems* (10,873) (79) Cypress Semiconductor* (28,900) (960) Diebold (7,100) (241) Electronic Arts* (5,900) (332) Equinix* (4,200) (437) F5 Networks* (7,251) (192) Fair Isaac (7,527) (278) Global Payments (2,902) (125) International Rectifier* (600) (20) Iron Mountain* (1,000) (36) Kla-Tencor (7,000) (338) Linear Technology (17,474) (532) Marvel Technology* (3,455) (52) MEMIC Electronic Materials* (7,534) (584) Micron Technology (31,100) (259) Novell* (8,900) (62) Paychex (14,920) (582) QLogic* (29,490) (399) Qualcomm (2,585) (105) Rambus* (31,636) (613) Riverbed Technology* (6,728) (190) Salesforce.com* (8,900) (505) SanDisk* (1,000) (37) SAVVIS* (9,200) (295) Silicon Laboratories* (4,687) (174) Tellabs* (7,592) (53) VeriFone Holdings* (19,306) (927) Vishay Intertechnology* (13,700) (171) Zebra Technology, Cl A* (7,781) (300) -------------- (9,705) -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- INFORMATION TECHNOLOGY -- (0.1)% Microchip Technology (17,201) $ (495) -------------- MATERIALS -- (0.7)% Bemis (20,968) (569) Cleveland-Cliffs (700) (63) Eagle Materials (1,842) (72) Ivanhoe Mines* (43,300) (488) Louisiana-Pacific (26,059) (401) Potash of Saskatchewan (5,800) (695) Sealed Air (800) (19) Silver Standard Resources* (10,100) (366) Sonoco Products (2,280) (69) Temple-Inland (6,300) (290) Weyerhaeuser (1,300) (95) -------------- (3,127) -------------- TELECOMMUNICATION SERVICES -- (0.3)% Citizens Communications (22,454) (291) Leap Wireless International* (507) (18) Level 3 Communications* (33,698) (113) NII Holdings, Cl B* (10,300) (568) Windstream (16,269) (211) -------------- (1,201) -------------- UTILITIES -- (0.1)% Equitable Resources (6,100) (323) Pinnacle West Capital (2,527) (108) Wisconsin Energy (4,500) (215) -------------- (646) -------------- UTILITIES -- (0.0)% SCANA (2,611) (111) -------------- Total Common Stock Sold Short (Proceeds $(71,356)) ($ Thousands) $ (68,029) -------------- A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- NUMBER OF UNREALIZED TYPE OF CONTRACTS EXPIRATION APPRECIATION CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- S&P 500 Index 230 Dec-2007 $ 123 S&P 500 Index E-Mini 6 Dec-2007 3 -------------- $ 126 ============== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 19 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Diversified Alpha Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $459,684 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts.The rate reported is the effective yield at time of purchase. (B) All or a portion of this security is held as collateral for securities sold short. The total value of collateral for securities sold short at November 30, 2007 was $206,421 ($ Thousands). ADR -- American Depositary Receipt Cl -- Class Ser -- Series The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 20 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Large Cap Disciplined Equity Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Mutual 17.2% Financials 14.1% Information Technology 11.0% Health Care 9.2% Industrials 9.2% Energy 8.1% Short-Term Investments 8.1% Consumer Staples 7.3% Consumer Discretionary 6.4% Telecommunication Services 3.1% Materials 2.7% Utilities 2.6% U.S. Treasury Obligations 1.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 77.6% CONSUMER DISCRETIONARY -- 6.8% Abercrombie & Fitch, Cl A 16,700 $ 1,370 Amazon.com* 147,300 13,339 AnnTaylor Stores* 70,900 2,159 Apollo Group, Cl A* 35,800 2,739 Asbury Automotive Group 78,200 1,309 Autozone* 39,700 4,432 Best Buy (B) 659,668 33,676 Big Lots (B)* 167,100 3,120 Bob Evans Farms (B) 37,800 1,166 Brinker International (B) 175,750 4,048 Cablevision Systems, Cl A* 439,972 11,892 CBS, Cl B (B) 358,740 9,840 Cheesecake Factory (B)* 21,800 508 Christopher & Banks (B) 50,600 816 Clear Channel Communications 55,119 1,979 Coach* 279,500 10,381 Comcast, Cl A (B)* 1,159,924 23,825 Darden Restaurants 177,100 7,047 DIRECTV Group* 1,652,078 41,087 Dollar Tree Stores* 19,600 562 Dow Jones 68,300 4,081 Eastman Kodak 6,800 160 EchoStar Communications, Cl A* 66,237 2,855 Expedia* 95,900 3,126 Family Dollar Stores 31,700 747 Ford Motor (B)* 1,983,487 14,896 General Motors (B) 512,052 15,274 Gentex 86,800 1,720 Goodyear Tire & Rubber* 295,300 8,490 Group 1 Automotive (B) 9,300 250 Gymboree* 147,300 4,914 Harley-Davidson 84,000 4,034 Harman International Industries 26,800 1,972 Harrah's Entertainment 28,710 2,528 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Hasbro 194,900 $ 5,412 Home Depot 691,195 19,741 IAC/InterActive* 166,300 4,628 Interpublic Group* 223,900 2,125 J.C. Penney (B) 290,100 12,799 Jack in the Box (B)* 153,200 4,588 Johnson Controls 186,136 7,189 Jones Apparel Group (B) 86,800 1,618 Kellwood 32,100 481 Kohl's* 75,400 3,716 Leggett & Platt 31,100 640 Limited Brands (B) 139,900 2,809 Marriott International, Cl A 473,780 17,767 Marvel Entertainment (B)* 62,900 1,742 Mattel 603,200 12,052 McDonald's 616,532 36,049 McGraw-Hill 114,000 5,595 Meredith 8,000 440 MGM Mirage* 129,564 11,207 Morgans Hotel Group (B)* 23,100 427 News, Cl A 784,800 16,536 Nike, Cl B 45,500 2,987 Nordstrom 267,126 8,959 Panera Bread, Cl A (B)* 27,800 1,114 Papa John's International (B)* 38,500 907 Polo Ralph Lauren 88,800 6,125 RadioShack 215,700 3,990 Rent-A-Center* 173,200 2,453 Sears Holdings* 15,800 1,667 Sherwin-Williams 92,500 5,812 Snap-On 29,800 1,457 Sonic (B)* 57,200 1,396 Stanley Works 17,300 902 Target (B) 354,423 21,287 Tempur-Pedic International (B) 22,800 677 Tiffany 140,200 6,509 Time Warner 1,395,428 24,085 TRW Automotive Holdings (B)* 45,509 1,022 Valassis Communications (B)* 124,700 1,538 VF 131,500 9,835 Viacom, Cl B* 319,400 13,421 Walt Disney 1,177,238 39,025 Warnaco Group* 57,000 2,103 Wendy's International 31,400 880 Whirlpool 24,300 1,967 Winnebago Industries (B) 25,400 547 Wolverine World Wide 8,400 208 Wyndham Worldwide 16,200 473 Yum! Brands (B) 353,300 13,125 -------------- 582,374 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 21 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Disciplined Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CONSUMER STAPLES -- 7.6% Altria Group 1,045,953 $ 81,124 Anheuser-Busch 417,125 21,991 Archer-Daniels-Midland 791,733 28,780 Avon Products 32,800 1,346 Brown-Forman, Cl B 11,000 777 Campbell Soup 5,900 217 Chattem (B)* 5,900 418 Coca-Cola 776,487 48,220 Coca-Cola Enterprises 271,401 7,048 Colgate-Palmolive 153,500 12,292 Corn Products International 47,466 1,867 Costco Wholesale (B) 70,241 4,734 CVS 186,608 7,481 Dean Foods 29,100 726 Estee Lauder, Cl A 8,800 395 General Mills (B) 105,800 6,364 Green Mountain Coffee Roasters (B)* 7,200 235 Herbalife (B) 69,200 2,897 HJ Heinz 9,200 435 Kimberly-Clark 381,959 26,665 Kraft Foods, Cl A 345,003 11,920 Kroger 1,316,687 37,855 Molson Coors Brewing, Cl B 92,000 4,953 PepsiCo 661,327 51,041 Pilgrim's Pride (B) 30,700 801 Procter & Gamble 1,822,778 134,886 Reynolds American (B) 320,400 22,434 Safeway (B) 491,800 17,115 Sanderson Farms 16,500 513 Supervalu 298,100 12,482 Sysco 208,343 6,773 Tyson Foods, Cl A (B) 1,318,923 19,665 UST 80,300 4,649 Wal-Mart Stores 1,661,177 79,570 Walgreen 12,003 439 WM Wrigley Jr. 11,600 742 -------------- 659,850 -------------- ENERGY -- 8.6% Apache 41,900 4,055 Baker Hughes 19,600 1,573 Chesapeake Energy (B) 367,400 13,906 Chevron 1,457,881 127,958 ConocoPhillips 1,124,062 89,970 Consol Energy 10,100 599 Devon Energy 274,742 22,751 El Paso 68,200 1,097 ENSCO International 33,800 1,820 Exxon Mobil 2,993,572 266,907 Halliburton 597,216 21,864 Hess 124,600 8,874 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Holly (B) 16,800 $ 814 Hornbeck Offshore Services* 117,000 4,817 Marathon Oil 702,090 39,247 Murphy Oil 17,900 1,280 National Oilwell Varco* 199,600 13,603 Noble 255,200 13,304 Noble Energy 28,600 2,060 Occidental Petroleum 125,098 8,728 Pride International* 267,419 8,817 Rowan 28,300 1,002 Schlumberger 341,594 31,922 SEACOR Holdings* 8,800 797 Smith International 60,300 3,782 Sunoco (B) 31,100 2,087 Tesoro 69,500 3,418 Transocean 29,243 4,015 Valero Energy 240,600 15,656 Weatherford International* 33,400 2,092 Williams 501,442 17,405 XTO Energy 46,900 2,899 -------------- 739,119 -------------- FINANCIALS -- 14.7% ACE 508,525 30,425 Aflac 25,400 1,591 Alleghany* 549 225 Allstate (B) 476,447 24,356 AMBAC Financial Group (B) 10,400 283 American Capital Strategies 16,600 624 American Express 452,903 26,712 American Financial Group 105,600 3,086 American International Group 1,277,200 74,244 American National Insurance 1,526 182 Ameriprise Financial 126,810 7,443 Annaly Capital Management+ 134,700 2,318 AON (B) 271,400 13,562 Apartment Investment & Management, Cl A+ 10,600 422 Apollo Investment (B) 55,900 990 Arch Capital Group* 18,307 1,277 Ashford Hospitality Trust+ 63,700 493 AvalonBay Communities+ (B) 48,623 4,835 Axis Capital Holdings 34,500 1,316 Bank of America 2,990,623 137,957 Bank of New York Mellon 391,955 18,798 BB&T (B) 112,600 4,063 BlackRock (B) 68,181 13,525 BOK Financial (B) 4,033 221 Boston Properties+ 309,162 30,428 Brandywine Realty Trust+ 67,500 1,384 Capital One Financial (B) 274,329 14,625 CB Richard Ellis Group, Cl A* 234,700 5,574 - -------------------------------------------------------------------------------- 22 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Charles Schwab 824,395 $ 20,041 Chubb 208,600 11,379 CIT Group (B) 25,600 681 Citigroup 2,905,176 96,742 Citizens Republic Bancorp 29,200 415 CME Group 2,700 1,778 Comerica 20,500 939 Crystal River Capital+ (B) 28,600 404 Discover Financial Services* 41,240 716 Endurance Specialty Holdings 43,900 1,773 Fannie Mae 100,800 3,873 Fifth Third Bancorp 137,200 4,104 First Citizens BancShares, Cl A 1,406 220 First Industrial Realty Trust+ (B) 37,300 1,362 Franklin Resources 264,909 32,632 Freddie Mac 15,917 558 General Growth Properties+ 12,900 599 Genworth Financial, Cl A 67,600 1,774 Goldman Sachs Group 258,103 58,496 Hartford Financial Services Group 119,464 11,387 Host Hotels & Resorts+ (B) 130,081 2,496 Hudson City Bancorp 461,100 7,018 Huntington Bancshares 276,000 4,330 IntercontinentalExchange* 15,000 2,504 iStar Financial+ (B) 9,200 269 Janus Capital Group (B) 370,100 12,424 JPMorgan Chase 2,623,741 119,695 Keycorp (B) 158,300 4,170 Kimco Realty+ 43,800 1,730 Lehman Brothers Holdings (B) 246,084 15,412 Leucadia National 128,600 6,039 Lincoln National 7,592 467 Loews 787,171 37,619 MBIA (B) 26,100 953 Merrill Lynch 515,544 30,902 Metlife (B) 726,733 47,666 MFA Mortgage Investments+ 43,300 380 Montpelier Re Holdings (B) 43,100 747 Moody's 10,170 383 Morgan Stanley 378,616 19,961 Newcastle Investment+ (B) 103,300 1,344 Northern Trust 119,881 9,709 NorthStar Realty Finance+ (B) 170,300 1,562 NYSE Euronext 35,500 3,074 Platinum Underwriters Holdings 31,800 1,155 PNC Financial Services Group 155,531 11,386 Prologis+ 5,100 334 Provident Bankshares 10,400 244 Prudential Financial 532,048 50,087 Public Storage+ 1,900 147 Regions Financial 433,200 11,449 Simon Property Group+ 57,281 5,639 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- SLM 66,276 $ 2,524 Strategic Hotels & Resorts+ (B) 47,100 862 Sunstone Hotel Investors+ 25,800 599 SunTrust Banks 76,000 5,328 T. Rowe Price Group 81,628 5,019 TD Ameritrade Holding (B)* 271,500 5,074 Travelers 928,132 49,293 Umpqua Holdings (B) 23,100 373 UnumProvident 186,100 4,623 US Bancorp 745,868 24,681 Vornado Realty Trust+ 28,700 2,583 Wachovia 675,279 29,037 Washington Mutual (B) 190,541 3,716 Wells Fargo 1,548,150 50,207 XL Capital, Cl A (B) 77,600 4,542 -------------- 1,270,588 -------------- HEALTH CARE -- 9.7% Abbott Laboratories 566,616 32,586 Aetna 74,713 4,175 AmerisourceBergen (B) 472,892 21,455 Amgen* 83,688 4,624 Baxter International 870,466 52,115 Becton Dickinson 134,000 11,086 Biogen Idec* 8,600 637 Bristol-Myers Squibb 716,773 21,238 Cardinal Health 524,404 31,753 Celgene* 156,400 9,626 Cigna 544,826 29,208 Coventry Health Care* 10,000 579 Covidien* 672,889 26,990 Cubist Pharmaceuticals (B)* 153,500 3,260 Eli Lilly 392,272 20,771 Express Scripts* 289,900 19,641 Genentech* 320,674 24,451 Gilead Sciences* 369,000 17,173 Health Net* 291,076 14,140 Henry Schein* 11,444 677 Hospira* 51,605 2,235 Humana* 138,777 10,690 Idexx Laboratories (B)* 10,200 617 Invitrogen (B)* 47,700 4,627 Johnson & Johnson 1,015,811 68,811 King Pharmaceuticals* 118,600 1,256 Laboratory of America Holdings* 55,300 4,019 Manor Care 94,300 6,094 McKesson 386,521 25,793 Medco Health Solutions* 344,781 34,475 Medtronic 334,149 16,991 Mentor (B) 108,600 4,082 Merck 783,794 46,526 Millennium Pharmaceuticals* 170,300 2,510 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 23 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Disciplined Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Millipore* 6,200 $ 508 OSI Pharmaceuticals (B)* 97,500 4,546 PerkinElmer 96,500 2,633 Pfizer 3,684,891 87,553 Schering-Plough 1,358,029 42,506 St. Jude Medical* 49,100 1,952 Stryker* 93,500 6,791 Thermo Fisher Scientific* 161,300 9,297 UnitedHealth Group 466,745 25,671 Waters* 162,700 12,697 Watson Pharmaceuticals* 53,300 1,562 WellPoint* 424,674 35,762 Wyeth 461,949 22,682 Zimmer Holdings* 64,700 4,188 -------------- 833,259 -------------- INDUSTRIALS -- 9.7% 3M 236,644 19,703 Acuity Brands (B) 12,700 502 Administaff 51,100 1,670 Allied Waste Industries* 402,380 4,591 American Reprographics (B)* 32,800 508 Apogee Enterprises 16,600 369 Boeing 810,383 74,993 Burlington Northern Santa Fe 104,100 8,694 C.H. Robinson Worldwide 23,300 1,201 Caterpillar 75,528 5,430 Cooper Industries, Cl A 24,300 1,220 CRA International (B)* 13,900 643 CSX 413,000 17,346 Cummins 87,820 10,266 Deere 64,200 11,030 Delta Air Lines* 61,382 1,213 Eaton 51,000 4,555 Emerson Electric 285,530 16,281 EnPro Industries* 27,800 851 Expeditors International Washington 34,300 1,609 FedEx 282,225 27,791 Flowserve 38,681 3,639 Fluor 91,310 13,438 Gardner Denver* 24,000 795 General Dynamics 140,500 12,474 General Electric 5,395,557 206,596 Goodrich 55,600 3,964 Granite Construction (B) 26,100 1,071 Herman Miller (B) 26,500 727 Honeywell International 724,122 41,000 Hubbell, Cl B 17,700 972 Huron Consulting Group* 32,500 2,381 Illinois Tool Works (B) 125,000 6,937 Ingersoll-Rand, Cl A 347,300 17,935 ITT 55,000 3,544 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Jacobs Engineering Group* 231,847 $ 19,422 L-3 Communications Holdings 14,900 1,649 Labor Ready (B)* 115,900 1,744 Lockheed Martin (B) 515,035 56,999 Manitowoc 22,700 995 Northrop Grumman 216,576 17,064 Paccar (B) 335,069 16,958 Pall 144,400 5,523 Parker Hannifin 5,800 461 PeopleSupport (B)* 22,400 315 Precision Castparts 81,800 12,052 Raytheon 385,431 23,839 Robert Half International 122,000 3,289 Rockwell Automation 202,600 13,754 Rockwell Collins 18,200 1,313 RR Donnelley & Sons 154,391 5,660 Ryder System 15,300 663 Shaw Group* 141,384 8,967 Steelcase, Cl A 103,500 1,566 Stericycle* 38,500 2,266 Terex* 167,398 10,789 Textron 15,400 1,063 Thomas & Betts* 99,800 5,425 Timken 18,600 593 Trane 60,800 2,232 Trinity Industries (B) 94,900 2,402 Tyco International 481,128 19,308 Union Pacific 59,000 7,442 United Parcel Service, Cl B 363,085 26,752 United Technologies 315,344 23,578 Waste Management 227,800 7,818 WW Grainger 90,862 8,023 -------------- 835,863 -------------- INFORMATION TECHNOLOGY -- 11.7% Accenture, Cl A (B) 85,700 2,962 Adobe Systems* 115,900 4,884 Advent Software (B)* 9,900 502 Agilent Technologies* 319,300 12,079 Altera 24,400 458 Amdocs* 75,843 2,510 Analog Devices 43,600 1,342 Apple* 289,984 52,841 Applied Materials 22,900 431 Arrow Electronics* 406,050 15,028 Autodesk* 14,700 692 Automatic Data Processing 344,353 15,517 Avnet (B)* 336,679 11,615 BMC Software* 185,100 6,123 Cadence Design Systems* 24,200 402 Ciena* 54,100 2,379 Cisco Systems* 2,605,210 72,998 - -------------------------------------------------------------------------------- 24 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Citrix Systems* 32,100 $ 1,187 Cognizant Technology Solutions, Cl A* 119,800 3,726 Compuware (B)* 237,800 1,964 Convergys* 89,800 1,465 Corning 69,500 1,688 Dell* 180,100 4,420 Earthlink* 123,300 837 eBay* 576,300 19,323 Electronic Data Systems (B) 1,037,629 21,022 EMC* 419,300 8,080 Emulex (B)* 62,200 1,042 Exar* 46,000 423 Fidelity National Information Services 110,100 4,758 Google, Cl A* 104,995 72,762 Hewlett-Packard 2,055,393 105,154 Ingram Micro, Cl A* 687,047 13,672 Integrated Device Technology* 36,800 446 Intel 1,612,939 42,065 International Business Machines (B) 1,033,522 108,706 Intuit* 322,600 9,459 j2 Global Communications (B)* 17,100 416 Jabil Circuit 105,900 1,795 Juniper Networks (B)* 655,200 19,473 Kla-Tencor 17,800 856 Lam Research (B)* 211,000 9,674 Linear Technology (B) 199,200 6,068 MEMC Electronic Materials* 72,200 5,601 Microchip Technology 82,800 2,384 Microsoft 3,934,443 132,197 Motorola 179,273 2,863 NCR* 599,960 14,363 Network Appliance* 226,100 5,587 Novellus Systems* 12,500 325 Nvidia* 532,150 16,784 Oracle* 1,227,216 24,765 Qualcomm 309,100 12,605 SanDisk* 14,900 558 Seagate Technology 181,100 4,671 Semtech* 38,500 587 SPSS* 20,400 737 Sun Microsystems* 898,610 18,673 SYKES Enterprises* 19,600 362 Symantec (B)* 707,200 12,588 Tech Data* 85,366 3,211 Teradata* 348,820 9,055 Teradyne* 37,400 407 Texas Instruments 1,148,014 36,243 Tyco Electronics* 287,127 10,736 VeriSign* 87,800 3,591 Xerox* 1,159,991 19,581 Yahoo!* 13,600 365 Zoran* 121,300 2,647 -------------- 1,004,730 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- MATERIALS -- 2.8% Air Products & Chemicals 5,200 $ 515 Alcoa 535,200 19,465 Allegheny Technologies 130,500 12,756 Ashland 77,748 3,828 Ball 76,500 3,538 Crown Holdings* 746,999 19,168 Dow Chemical 728,022 30,533 E.I. Du Pont de Nemours 276,691 12,769 Eastman Chemical 45,100 2,896 Ecolab 6,000 287 Freeport-McMoRan Copper & Gold, Cl B (B) 243,321 24,072 Hercules 30,100 584 International Flavors & Fragrances 86,400 4,332 International Paper 191,300 6,456 MeadWestvaco 73,900 2,429 Monsanto 253,347 25,175 Mosaic* 148,794 10,289 Newmont Mining 43,262 2,150 Nucor 139,400 8,254 Olin 155,000 3,246 OM Group* 35,800 2,015 Owens-Illinois* 74,010 3,322 Pactiv* 289,200 7,346 PPG Industries 6,900 474 Rohm & Haas 36,428 1,981 Temple-Inland 171,200 7,870 Titanium Metals* 14,600 433 United States Steel 143,700 14,040 Vulcan Materials 96,800 8,596 Weyerhaeuser 61,800 4,523 Zep (B)* 12,500 164 -------------- 243,506 -------------- TELECOMMUNICATION SERVICES -- 3.2% American Tower, Cl A* 70,100 3,192 AT&T 4,455,946 170,262 CenturyTel 155,800 6,642 Embarq 74,900 3,816 Qwest Communications International (B)* 968,719 6,423 Sprint Nextel 1,268,400 19,686 US Cellular* 86,212 7,069 Verizon Communications 1,289,920 55,737 Windstream (B) 484,813 6,278 -------------- 279,105 -------------- UTILITIES -- 2.8% AES* 331,000 7,232 Allegheny Energy* 287,814 17,485 American Electric Power 225,300 10,740 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 25 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Disciplined Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Atmos Energy 26,100 $ 684 Centerpoint Energy 328,200 5,858 CMS Energy 88,600 1,544 Consolidated Edison (B) 217,000 10,514 Constellation Energy Group 109,700 10,993 Dominion Resources (B) 97,600 4,610 DTE Energy (B) 38,900 1,908 Duke Energy (B) 881,900 17,453 Dynegy, Cl A* 490,000 3,729 Edison International 408,286 22,856 Entergy 70,600 8,440 Exelon 223,482 18,118 FirstEnergy 85,500 5,862 FPL Group 154,100 10,750 Mirant (B)* 39,500 1,524 Nicor (B) 35,700 1,504 NiSource 44,200 818 Pepco Holdings 33,300 936 PG&E 442,623 20,480 Portland General Electric 62,400 1,670 PPL 98,500 5,020 Public Service Enterprise Group 311,695 29,842 Questar 17,900 957 Reliant Energy* 534,461 13,917 Sempra Energy 36,530 2,287 Southern (B) 73,900 2,780 -------------- 240,511 -------------- Total Common Stock (Cost $5,973,184) ($ Thousands) 6,688,905 -------------- MUTUAL FUND -- 18.2% SEI LIBOR Plus Portfolio, 5.830%++** 161,902,719 1,568,837 -------------- Total Mutual Fund (Cost $1,616,888) ($ Thousands) 1,568,837 -------------- CORPORATE OBLIGATION (C) (E) -- 0.1% FINANCIALS -- 0.1% SLM MTN 4.660%, 12/17/07 $ 8,739 8,739 -------------- Total Corporate Obligation (Cost $8,739) ($ Thousands) 8,739 -------------- - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CASH EQUIVALENTS -- 8.6% FIMAT USA 2,850,489 $ 2,850 First Union Cash Management Program, 4.370%** 5,382,501 5,383 SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 245,963,681 245,964 SEI Liquidity Fund L.P., 5.110%++** (C) 484,906,404 484,906 UBS Margin Deposit 279,483 279 -------------- Total Cash Equivalents (Cost $739,712) ($ Thousands) 739,382 -------------- U.S. TREASURY OBLIGATIONS (A) (D) -- 1.0% U.S. Treasury Bills 4.854%, 12/13/07 $ 2,575 2,572 3.898%, 12/20/07 500 499 3.023%, 02/21/08 90,065 89,453 -------------- Total U.S. Treasury Obligations (Cost $92,519) ($ Thousands) 92,524 -------------- Total Investments -- 105.5% (Cost $8,430,712) ($ Thousands) $ 9,098,387 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION/ TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- 90-Day Euro$ (13) Mar-2008 $ (11) 90-Day GBP Libor (24) Mar-2008 4 3-Month Euribor (1) Mar-2008 -- Australia 10 Year Bond Index 21 Dec-2007 (4) Amsterdam Index 3 Dec-2007 1 CAC40 10 Euro (1) Dec-2007 (2) Canadian 10 Year Bond Index 60 Mar-2008 26 DAX Index 1 Dec-2007 10 Euro-Bobl 4 Dec-2007 6 Euro-Bond 157 Dec-2007 89 FTSE 100 Index 1 Dec-2007 3 Japan 10 Year Bond Index 26 Dec-2007 68 Long Gilt 10 Year Index (97) Mar-2008 22 S&P 500 Index 5,179 Dec-2007 1,887 S&P 500 Index E-Mini (3) Dec-2007 8 SPI 200 Index 1 Dec-2007 5 Topix Index (2) Dec-2007 8 U.S. 5 Year Treasury Note (7) Mar-2008 1 U.S. 10 Year Treasury Note 94 Dec-2007 29 U.S. 10 Year Treasury Note (95) Mar-2008 18 U.S. Long Treasury Bond (1) Mar-2008 1 -------------- $ 2,169 ============== - -------------------------------------------------------------------------------- 26 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007 is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY TO CURRENCY TO APPRECIATION/ MATURITY DELIVER RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 12/19/07 AUD 900 USD 798 $ 2 12/19/07 CAD 3,800 USD 3,818 15 12/19/07 CHF 4,625 USD 3,955 (147) 12/19/07 EUR 2,000 USD 2,840 (97) 12/19/07 GBP 1,750 USD 3,553 (43) 12/19/07 JPY 342,500 USD 2,996 (98) 12/19/07 NZD 1,000 USD 755 (11) 12/19/07 SEK 18,000 USD 2,708 (111) 12/19/07 USD 7,018 AUD 7,950 8 12/19/07 USD 4,336 CAD 4,400 68 12/19/07 USD 6,050 CHF 7,125 269 12/19/07 USD 12,482 EUR 8,575 109 12/19/07 USD 5,473 GBP 2,688 50 12/19/07 USD 4,004 JPY 437,500 (52) 12/19/07 USD 1,532 NOK 8,500 1 12/19/07 USD 2,552 NZD 3,425 70 12/19/07 USD 9,565 SEK 61,500 67 -------------- $ 100 ============== - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $8,621,955 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or a portion thereof, has been pledged as collateral on open future contracts. (B) This security or a partial position of this security is on loan at November 30, 2007. The total value of securities on loan at November 30, 2007 was $482,193 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan. The total value of such securities as of November 30, 2007 was $493,645 ($ Thousands). (D) The rate reported is the effective yield at time of purchase. (E) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. AUD -- Australian Dollar CAD -- Canadian Dollar CHF -- Swiss Franc Cl -- Class EUR -- Euro GBP -- British Pound Sterling JPY -- Japanese Yen L.P.-- Limited Partnership MTN -- Medium Term Note NOK -- Norwegian Krone NZD -- New Zealand Dollar SEK -- Swedish Krona Ser -- Series USD -- U.S. Dollar Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 27 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Financials 16.4% Information Technology 14.2% Short-Term Investments 10.8% Health Care 10.8% Industrials 10.5% Energy 10.2% Consumer Discretionary 8.7% Consumer Staples 8.5% Utilities 3.4% Materials 3.3% Telecommunication Services 3.0% U.S. Treasury Obligation 0.2% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 97.2% CONSUMER DISCRETIONARY -- 9.5% Abercrombie & Fitch, Cl A 2,102 $ 172 Advance Auto Parts 2,808 101 Amazon.com (B)* 7,589 687 American Eagle Outfitters 4,671 107 AnnTaylor Stores* 1,847 56 Apollo Group, Cl A (B)* 3,664 280 Autoliv 2,118 124 Autonation* 4,132 68 Autozone* 1,207 135 Barnes & Noble 1,238 48 Bed Bath & Beyond* 7,015 221 Best Buy (B) 8,547 436 Big Lots (B)* 2,800 52 Black & Decker 1,468 121 BorgWarner 1,441 139 Boyd Gaming 1,651 64 Brinker International 2,683 62 Brunswick (B) 2,533 52 Burger King Holdings 2,000 53 Cablevision Systems, Cl A* 5,342 144 Career Education* 2,459 71 Carmax (B)* 5,860 134 Carnival 11,200 505 CBS, Cl B (B) 14,869 408 Centex 3,256 68 Central European Media Entertainment, Cl A* 800 88 Cheesecake Factory (B)* 2,046 48 Chico's FAS* 4,616 52 Choice Hotels International 884 31 Circuit City Stores (B) 4,985 32 Clear Channel Communications (B) 12,735 457 Clear Channel Outdoor Holdings, Cl A* 700 19 Coach* 9,467 352 Coldwater Creek (B)* 1,700 14 Comcast, Cl A (B)* 73,925 1,518 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CROCS (B)* 2,000 $ 78 CTC Media* 1,700 41 Darden Restaurants 3,322 132 Dick's Sporting Goods* 2,058 64 Dillard's, Cl A (B) 1,675 34 DIRECTV Group* 17,658 439 Discovery Holding, Cl A* 7,242 177 Dollar Tree Stores* 2,653 76 Dow Jones 1,377 82 DR Horton 7,268 87 DreamWorks Animation SKG, Cl A* 1,934 51 E.W. Scripps, Cl A 2,272 99 Eastman Kodak (B) 6,967 164 EchoStar Communications, Cl A* 5,162 222 Expedia* 4,534 148 Family Dollar Stores 3,462 82 Foot Locker (B) 4,469 58 Ford Motor (B)* 49,924 375 Fortune Brands 3,720 285 GameStop, Cl A* 3,900 224 Gannett (B) 5,959 219 Gap 15,259 311 Garmin* 3,000 322 General Motors (B) 11,881 354 Gentex 3,932 78 Genuine Parts 4,271 205 Getty Images* 1,519 44 Goodyear Tire & Rubber* 5,052 145 Guess?* 1,300 61 H&R Block (B) 7,725 152 Hanesbrands* 2,643 75 Harley-Davidson 5,903 283 Harman International Industries 1,568 115 Harrah's Entertainment 4,775 421 Harte-Hanks 1,489 25 Hasbro 3,767 105 Hearst-Argyle Television 863 17 Home Depot 42,215 1,206 IAC/InterActive (B)* 4,664 130 Idearc 3,955 75 International Game Technology 8,443 369 International Speedway, Cl A 912 39 Interpublic Group (B)* 12,575 119 ITT Educational Services* 1,121 127 J.C. Penney 5,751 254 Jarden* 2,000 53 John Wiley & Sons, Cl A 1,242 52 Johnson Controls (B) 14,745 569 Jones Apparel Group (B) 1,753 33 KB Home (B) 2,080 43 Kohl's* 8,219 405 - -------------------------------------------------------------------------------- 28 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Lamar Advertising, Cl A (B) 2,140 $ 111 Las Vegas Sands* 2,593 294 Leggett & Platt 4,919 101 Lennar, Cl A (B) 3,530 56 Liberty Global, Cl A (B)* 9,871 401 Liberty Media Holding-Capital, Ser A* 3,292 392 Liberty Media Holding-Interactive, Cl A (B)* 14,947 301 Limited Brands (B) 7,657 154 Liz Claiborne 2,661 67 Lowe's 37,510 916 Macy's 11,030 327 Marriott International, Cl A 8,050 302 Mattel 9,542 191 McClatchy, Cl A (B) 1,417 19 McDonald's 29,880 1,747 McGraw-Hill 8,439 414 MDC Holdings (B) 816 29 Meredith 1,358 75 MGM Mirage* 2,992 259 Mohawk Industries (B)* 1,366 110 New York Times, Cl A (B) 3,524 58 Newell Rubbermaid 7,365 197 News, Cl A 56,885 1,199 Nike, Cl B (B) 8,848 581 Nordstrom 6,012 202 Nutri/System (B)* 900 23 NVR (B)* 124 61 O'Reilly Automotive* 2,640 87 Office Depot* 6,889 118 OfficeMax 1,974 49 Omnicom Group (B) 8,444 412 Orient-Express Hotels, Cl A 1,000 62 Panera Bread, Cl A (B)* 762 31 Penn National Gaming* 1,689 101 Penske Auto Group 1,200 24 PetSmart 3,173 90 Phillips-Van Heusen 1,400 59 Polo Ralph Lauren 1,480 102 Pool (B) 1,292 28 Pulte Homes (B) 6,018 61 R.H. Donnelley (B)* 1,761 78 RadioShack (B) 3,871 72 Regal Entertainment Group, Cl A (B) 1,988 39 Ross Stores 3,871 102 Royal Caribbean Cruises 3,300 134 Ryland Group (B) 1,075 25 Saks (B) 3,306 68 Scientific Games, Cl A* 1,466 47 Sears Holdings (B)* 1,828 193 Service International 6,794 90 Sherwin-Williams 2,737 172 Sirius Satellite Radio (B)* 38,952 149 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Snap-On 1,491 $ 73 Stanley Works 2,109 110 Staples* 18,364 435 Starbucks* 19,006 445 Starwood Hotels & Resorts Worldwide 4,884 262 Target (B) 21,385 1,284 Thor Industries 1,000 35 Tiffany 3,525 164 Tim Hortons 4,986 192 Time Warner 94,237 1,627 Time Warner Cable, Cl A (B)* 3,900 101 TJX 11,154 327 Toll Brothers (B)* 3,351 69 Tractor Supply (B)* 1,000 41 Tribune 1,865 58 TRW Automotive Holdings* 993 22 Urban Outfitters (B)* 3,120 82 VF 2,117 158 Viacom, Cl B* 15,069 633 Virgin Media (B) 7,620 145 WABCO Holdings* 1,624 76 Walt Disney 49,584 1,644 Warner Music Group 662 5 Washington Post, Cl B 157 127 Weight Watchers International 962 46 Wendy's International 2,013 56 Whirlpool 1,987 161 Williams-Sonoma (B) 2,062 60 Wyndham Worldwide 4,468 130 Wynn Resorts (B)* 1,396 177 XM Satellite Radio Holdings, Cl A* 7,837 122 Yum! Brands 13,448 500 -------------- 36,590 -------------- CONSUMER STAPLES -- 9.3% Alberto-Culver (B) 2,187 56 Altria Group 52,768 4,093 Anheuser-Busch 18,979 1,001 Archer-Daniels-Midland 16,679 606 Avon Products 11,206 460 Bare Escentuals (B)* 700 15 BJ's Wholesale Club* 1,872 70 Brown-Forman, Cl B 1,875 132 Bunge (B) 3,100 348 Campbell Soup 5,578 205 Church & Dwight 1,632 92 Clorox 3,303 214 Coca-Cola 58,120 3,609 Coca-Cola Enterprises 7,515 195 Colgate-Palmolive 12,775 1,023 ConAgra Foods 12,686 317 Constellation Brands, Cl A (B)* 4,631 109 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 29 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Corn Products International 1,700 $ 67 Costco Wholesale (B) 11,081 747 CVS 36,952 1,481 Dean Foods 3,487 87 Del Monte Foods 5,258 46 Energizer Holdings (B)* 1,341 152 Estee Lauder, Cl A 2,654 119 General Mills 7,996 481 Hansen Natural* 1,600 69 Herbalife 1,200 50 Hershey 4,198 168 HJ Heinz 8,337 394 Hormel Foods 1,939 77 JM Smucker 1,255 62 Kellogg (B) 6,003 324 Kimberly-Clark 10,618 741 Kraft Foods, Cl A 40,040 1,383 Kroger 17,573 505 Loews - Carolina 2,593 231 McCormick 3,093 118 Molson Coors Brewing, Cl B 2,862 154 NBTY* 1,300 39 Pepsi Bottling Group 3,682 157 PepsiAmericas 1,494 51 PepsiCo 40,837 3,152 Procter & Gamble 79,277 5,867 Reynolds American (B) 4,310 302 Rite Aid (B)* 19,101 71 Safeway (B) 11,220 391 Sara Lee 18,751 316 Smithfield Foods (B)* 2,775 83 Supervalu 5,489 230 Sysco 15,748 512 Tyson Foods, Cl A 6,165 92 UST (B) 3,969 230 Wal-Mart Stores 60,679 2,907 Walgreen 24,925 912 Whole Foods Market (B) 3,352 144 WM Wrigley Jr. (B) 5,900 378 -------------- 35,835 -------------- ENERGY -- 11.1% Anadarko Petroleum 11,840 670 Apache 8,259 799 Arch Coal 3,312 125 Baker Hughes 8,001 642 BJ Services 7,288 179 Cabot Oil & Gas 2,200 76 Cameron International* 2,722 254 Cheniere Energy (B)* 900 31 Chesapeake Energy (B) 11,366 430 Chevron 54,102 4,749 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cimarex Energy 2,300 $ 89 CNX Gas* 800 25 ConocoPhillips 41,176 3,296 Consol Energy 4,444 263 Continental Resources* 400 10 Denbury Resources* 2,824 151 Devon Energy 11,113 920 Diamond Offshore Drilling 1,709 199 Dresser-Rand Group* 2,134 76 El Paso 17,103 275 ENSCO International (B) 3,723 200 EOG Resources 6,245 517 Exxon Mobil 141,512 12,617 FMC Technologies* 3,160 176 Forest Oil* 2,214 104 Foundation Coal Holdings 1,300 59 Frontier Oil 3,000 133 Frontline (B)* 1,100 51 Global Industries* 2,500 55 Grant Prideco* 3,027 146 Halliburton 22,797 835 Helix Energy Solutions Group* 2,400 97 Helmerich & Payne 2,850 98 Hess 7,112 507 Holly 1,300 63 Marathon Oil 18,076 1,010 Massey Energy 1,961 67 Murphy Oil (B) 4,754 340 Nabors Industries* 7,100 191 National Oilwell Varco* 8,984 612 Newfield Exploration* 3,099 155 Noble 6,800 355 Noble Energy 4,162 300 Occidental Petroleum 20,854 1,455 Oceaneering International* 1,500 96 Overseas Shipholding Group 927 66 Patriot Coal* 667 23 Patterson-UTI Energy 3,632 68 Peabody Energy (B) 6,674 371 Pioneer Natural Resources 3,244 145 Plains Exploration & Production* 2,691 136 Pride International* 4,429 146 Quicksilver Resources (B)* 1,101 56 Range Resources 3,939 160 Rowan 2,986 106 Schlumberger 29,700 2,775 SEACOR Holdings* 600 54 Smith International (B) 4,931 309 Southwestern Energy* 4,488 223 Spectra Energy* 16,009 394 St Mary Land & Exploration 1,600 63 Sunoco (B) 2,956 198 Superior Energy Services* 2,200 77 - -------------------------------------------------------------------------------- 30 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Teekay Shipping (B) 1,000 $ 56 Tesoro 3,246 160 Tetra Technologies* 2,000 32 Tidewater 1,570 77 Transocean (B) 7,796 1,070 Unit* 1,127 50 Valero Energy 13,936 907 W&T Offshore 400 11 Weatherford International (B)* 8,600 539 Western Refining 600 17 Williams 15,246 529 XTO Energy 9,111 563 -------------- 42,879 -------------- FINANCIALS -- 17.7% ACE 8,400 503 Affiliated Managers Group (B)* 733 91 Aflac 12,156 761 Alleghany* 132 54 Allied Capital (B) 3,964 96 Allied World Assurance Holdings 1,500 69 Allstate 14,225 727 AMB Property+ 2,644 162 AMBAC Financial Group (B) 2,468 67 American Capital Strategies (B) 4,521 170 American Express 25,934 1,530 American Financial Group 2,414 71 American International Group 56,376 3,277 American National Insurance 422 50 AmeriCredit (B)* 3,072 35 Ameriprise Financial 5,800 340 Annaly Capital Management+ 10,111 174 AON (B) 7,450 372 Apartment Investment & Management, Cl A+ 2,584 103 Arch Capital Group* 1,200 84 Arthur J. Gallagher 2,604 68 Associated Banc 3,384 92 Assurant 2,893 189 Astoria Financial 2,314 58 AvalonBay Communities+ 2,089 208 Axis Capital Holdings 3,900 149 Bancorpsouth 2,200 54 Bank of America 111,723 5,154 Bank of Hawaii 1,382 72 Bank of New York Mellon 28,309 1,358 BB&T (B) 13,606 491 Bear Stearns 3,074 307 BlackRock (B) 1,585 314 BOK Financial 475 26 Boston Properties+ 2,584 254 Brandywine Realty Trust+ (B) 2,500 51 BRE Properties, Cl A+ 1,320 59 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Brown & Brown 2,824 $ 69 Camden Property Trust+ (B) 1,447 76 Capital One Financial (B) 9,725 518 CapitalSource+ (B) 2,782 47 Capitol Federal Financial 527 18 CB Richard Ellis Group, Cl A (B)* 5,117 122 CBL & Associates Properties+ 1,906 55 Charles Schwab 25,985 632 Chubb 9,918 541 Cincinnati Financial (B) 4,086 163 CIT Group 4,924 131 Citigroup 124,545 4,147 City National 1,038 67 CME Group 1,332 877 CNA Financial 700 25 Colonial BancGroup 3,954 63 Colonial Properties Trust+ (B) 1,300 32 Comerica 3,953 181 Commerce Bancorp 4,854 193 Commerce Bancshares 2,010 91 Conseco* 5,277 68 Countrywide Financial (B) 15,275 165 Cullen/Frost Bankers 1,668 88 Developers Diversified Realty+ (B) 3,253 144 Discover Financial Services* 11,989 208 Douglas Emmett+ 3,000 72 Duke Realty+ 3,709 98 E*Trade Financial (B)* 11,438 53 East West Bancorp (B) 1,488 40 Eaton Vance 2,710 119 Endurance Specialty Holdings 1,400 57 Equity Residential+ 7,087 264 Erie Indemnity, Cl A 1,119 58 Essex Property Trust+ 669 69 Everest Re Group 1,600 168 Fannie Mae (B) 24,333 935 Federal Realty Investment Trust+ 1,496 124 Federated Investors, Cl B 2,058 84 Fidelity National Financial, Cl A 5,904 92 Fifth Third Bancorp 14,082 421 First American (B) 2,084 71 First Citizens BancShares, Cl A 200 31 First Horizon National (B) 3,229 71 First Marblehead (B) 1,798 54 Forest City Enterprises, Cl A 1,942 97 Franklin Resources 4,103 505 Freddie Mac 16,507 579 Fulton Financial 4,195 53 General Growth Properties+ 5,540 257 Genworth Financial, Cl A 11,092 291 GLG Partners (B)* 1,900 26 Goldman Sachs Group 10,275 2,329 Hanover Insurance Group 1,293 58 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 31 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Hartford Financial Services Group 7,910 $ 754 HCC Insurance Holdings 2,841 87 HCP+ 5,174 173 Health Care+ (B) 2,083 93 Hospitality Properties Trust+ 2,466 90 Host Hotels & Resorts+ (B) 12,800 246 HRPT Properties Trust+ 5,102 42 Hudson City Bancorp 13,128 200 Huntington Bancshares 9,734 153 IndyMac Bancorp (B) 2,099 20 IntercontinentalExchange* 1,800 301 Investment Technology Group* 1,200 55 iStar Financial+ 3,295 96 Janus Capital Group 4,265 143 Jefferies Group 3,214 82 Jones Lang LaSalle 1,000 84 JPMorgan Chase 86,022 3,924 Keycorp 9,895 261 Kilroy Realty+ 900 50 Kimco Realty+ 5,244 207 Lazard, Cl A 1,200 58 Legg Mason 3,181 243 Lehman Brothers Holdings (B) 13,294 833 Leucadia National (B) 4,220 198 Liberty Property Trust+ 2,306 72 Lincoln National 6,688 412 Loews 10,818 517 M&T Bank 1,683 153 Macerich+ 1,868 145 Mack-Cali Realty+ 1,898 68 Markel* 250 121 Marsh & McLennan 12,765 321 Marshall & Ilsley 6,360 200 MBIA (B) 3,159 115 Mercury General 696 36 Merrill Lynch 22,249 1,334 Metlife (B) 11,738 770 MF Global* 2,200 63 MGIC Investment (B) 2,315 54 Moody's (B) 5,127 193 Morgan Stanley 26,378 1,391 NASDAQ Stock Market (B)* 3,100 134 National City (B) 14,176 280 Nationwide Financial Services, Cl A 1,361 61 New York Community Bancorp (B) 8,172 152 Northern Trust 5,405 438 Nymex Holdings (B) 2,300 286 NYSE Euronext 6,500 563 Old Republic International 5,890 88 OneBeacon Insurance Group 1,100 23 PartnerRe 1,400 116 People's United Financial 5,334 91 Philadelphia Consolidated Holding* 1,648 70 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Plum Creek Timber+ (B) 4,421 $ 205 PMI Group (B) 2,343 31 PNC Financial Services Group 8,603 630 Popular (B) 7,230 70 Principal Financial Group 6,818 447 Progressive 17,180 316 Prologis+ 6,588 431 Protective Life 1,809 75 Prudential Financial 11,563 1,089 Public Storage+ 3,268 253 Radian Group (B) 2,198 25 Raymond James Financial 2,421 79 Rayonier+ 1,903 88 Regency Centers+ 1,608 107 Regions Financial 17,487 462 Reinsurance Group of America 799 43 RenaissanceRe Holdings 1,800 106 Safeco 2,235 129 SEI (F) 3,642 113 Simon Property Group+ (B) 5,452 537 SL Green Realty+ (B) 1,568 163 SLM 10,214 389 Sovereign Bancorp (B) 10,558 124 St. Joe (B) 2,061 59 Stancorp Financial Group 1,442 75 State Street 9,894 790 Student Loan 102 14 SunTrust Banks 8,846 620 Synovus Financial 7,072 176 T. Rowe Price Group (B) 6,580 405 Taubman Centers+ 1,500 80 TCF Financial 3,001 58 TD Ameritrade Holding* 6,145 115 TFS Financial* 2,300 28 Thornburg Mortgage+ (B) 3,241 35 Torchmark 2,250 139 Transatlantic Holdings 655 49 Travelers 16,544 879 UDR+ 3,819 84 UnionBanCal 1,097 59 Unitrin 1,260 58 UnumProvident (B) 9,405 234 US Bancorp 43,443 1,438 Valley National Bancorp (B) 3,008 59 Ventas+ 3,544 155 Vornado Realty Trust+ 3,310 298 Wachovia 49,888 2,145 Washington Federal (B) 2,263 53 Washington Mutual (B) 21,927 428 Webster Financial 1,346 45 Weingarten Realty Investors+ (B) 2,067 74 Wells Fargo 85,586 2,776 Wesco Financial 41 18 - -------------------------------------------------------------------------------- 32 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- White Mountains Insurance Group 200 $ 103 Whitney Holding 1,557 43 Wilmington Trust 1,692 60 WR Berkley 4,214 129 XL Capital, Cl A 4,800 281 Zions Bancorporation 2,802 153 -------------- 68,224 -------------- HEALTH CARE -- 11.8% Abbott Laboratories 38,576 2,218 Abraxis Bioscience* 140 8 Advanced Medical Optics (B)* 1,627 41 Aetna 12,734 712 Allergan 7,796 523 AmerisourceBergen 4,462 202 Amgen* 27,167 1,501 Amylin Pharmaceuticals (B)* 3,100 118 APP Pharmaceuticals* 563 7 Applera -- Applied Biosystems Group 4,394 150 Barr Pharmaceuticals* 2,582 139 Baxter International 16,275 974 Beckman Coulter 1,512 107 Becton Dickinson 6,244 517 Biogen Idec* 7,300 541 Boston Scientific* 32,939 416 Bristol-Myers Squibb 49,213 1,458 Brookdale Senior Living (B) 1,200 40 C.R. Bard 2,485 210 Cardinal Health 9,029 547 Celgene* 9,692 597 Cephalon* 1,748 131 Cerner (B)* 1,774 106 Charles River Laboratories International* 1,843 117 Cigna 7,055 378 Community Health Systems* 2,262 76 Cooper 1,104 47 Covance* 1,536 134 Coventry Health Care* 3,962 229 Covidien* 12,300 493 DaVita* 2,708 168 Dentsply International 3,598 154 Edwards Lifesciences* 1,507 74 Eli Lilly 24,861 1,316 Endo Pharmaceuticals Holdings* 3,697 101 Express Scripts* 5,522 374 Forest Laboratories* 8,073 311 Gen-Probe* 1,327 89 Genentech* 11,585 883 Genzyme* 6,753 506 Gilead Sciences* 23,250 1,082 Health Management Associates, Cl A (B) 6,222 42 Health Net* 3,002 146 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Henry Schein* 2,284 $ 135 Hillenbrand Industries 1,724 93 HLTH* 4,456 62 Hologic* 157 10 Hospira* 4,081 177 Humana* 4,075 314 Idexx Laboratories* 1,652 100 ImClone Systems (B)* 1,728 78 IMS Health 4,661 109 Intuitive Surgical* 900 295 Invitrogen (B)* 1,290 125 Johnson & Johnson 72,909 4,939 Kinetic Concepts* 1,413 83 King Pharmaceuticals* 6,226 66 Laboratory of America Holdings* 2,811 204 LifePoint Hospitals* 1,376 44 Lincare Holdings* 2,327 80 Manor Care (B) 1,994 129 McKesson 7,566 505 Medco Health Solutions* 7,110 711 Medtronic 28,785 1,464 Merck 54,340 3,226 Millennium Pharmaceuticals (B)* 7,816 115 Millipore* 1,486 122 Mylan Laboratories (B) 6,619 95 Omnicare (B) 3,131 80 Patterson (B)* 3,583 115 PDL BioPharma (B)* 3,031 54 Pediatrix Medical Group* 1,100 71 PerkinElmer 3,334 91 Pfizer 176,655 4,197 Pharmaceutical Product Development 2,684 114 Quest Diagnostics (B) 3,744 206 Resmed* 2,155 99 Respironics* 1,840 91 Schering-Plough 40,509 1,268 Sepracor (B)* 2,861 76 Sierra Health Services* 1,334 56 St. Jude Medical* 8,346 332 Stryker* 7,504 545 Techne* 941 61 Tenet Healthcare (B)* 12,694 70 Thermo Fisher Scientific* 10,425 601 UnitedHealth Group 33,529 1,844 Universal Health Services, Cl B 1,188 61 Varian Medical Systems* 3,030 151 VCA Antech (B)* 2,339 96 Vertex Pharmaceuticals (B)* 3,400 86 Warner Chilcott, Cl A* 2,100 38 Waters* 2,672 208 Watson Pharmaceuticals* 2,518 74 WebMD Health, Cl A* 300 13 WellCare Health Plans* 1,100 43 WellPoint* 14,431 1,215 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 33 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Wyeth 33,640 $ 1,652 Zimmer Holdings* 6,025 390 -------------- 45,262 -------------- INDUSTRIALS -- 11.5% 3M 18,046 1,502 AGCO (B)* 2,200 152 Aircastle 900 24 Alexander & Baldwin 1,082 56 Alliant Techsystems* 736 86 Allied Waste Industries* 6,933 79 Ametek 2,547 112 AMR* 6,386 135 Armstrong World Industries* 700 30 Avery Dennison 2,610 136 Avis Budget Group* 2,784 42 BE Aerospace* 2,300 108 Boeing 19,891 1,841 Brink's 1,300 83 Burlington Northern Santa Fe 8,898 743 C.H. Robinson Worldwide 4,286 221 Carlisle 1,666 66 Caterpillar 15,988 1,150 ChoicePoint* 1,797 68 Cintas 3,657 117 Con-way 1,323 56 Continental Airlines, Cl B (B)* 2,600 73 Cooper Industries, Cl A 4,700 236 Copa Holdings 600 22 Copart* 1,813 68 Corporate Executive Board 796 53 Corrections of America* 3,300 101 Covanta Holding* 3,200 86 Crane 1,500 67 CSX 11,232 472 Cummins 2,556 299 Danaher 6,051 525 Deere 5,709 981 Delta Air Lines* 5,900 117 Donaldson 1,972 92 Dover 4,957 229 DRS Technologies 1,100 65 Dun & Bradstreet 1,456 130 Eaton 3,726 333 Emerson Electric 19,820 1,130 Equifax 3,556 132 Expeditors International Washington 5,148 242 Fastenal (B) 3,262 129 FedEx 7,644 753 First Solar* 900 213 Flowserve 1,300 122 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Fluor 2,204 $ 324 Foster Wheeler* 1,800 268 Gardner Denver* 1,500 50 GATX 1,300 48 General Cable* 1,300 97 General Dynamics 10,072 894 General Electric 258,423 9,895 Goodrich 2,992 213 Graco 1,824 68 Harsco 2,270 136 Hertz Global Holdings* 8,100 155 HNI 1,322 48 Honeywell International 19,490 1,104 Hubbell, Cl B 1,592 87 IDEX 2,193 78 Illinois Tool Works 12,380 687 Ingersoll-Rand, Cl A 6,700 346 ITT 4,602 297 Jacobs Engineering Group* 3,002 251 JB Hunt Transport Services (B) 2,272 60 Joy Global 2,533 147 Kansas City Southern (B)* 2,100 72 KBR* 4,384 175 Kennametal 900 70 Kirby* 1,500 72 L-3 Communications Holdings 3,077 340 Landstar System 1,465 58 Lennox International 1,700 58 Lincoln Electric Holdings 1,200 84 Lockheed Martin 8,929 988 Manitowoc 3,000 132 Manpower 2,284 140 Masco 9,609 215 McDermott International* 5,600 293 Monster Worldwide* 3,418 115 MSC Industrial Direct, Cl A 1,120 48 Norfolk Southern 9,733 498 Northrop Grumman 8,578 676 Northwest Airlines* 6,600 120 Oshkosh Truck 1,959 94 Owens Corning (B)* 2,700 59 Paccar (B) 9,270 469 Pall 3,345 128 Parker Hannifin 4,504 358 Pentair (B) 2,761 94 Pitney Bowes 5,485 211 Precision Castparts 3,446 508 Quanta Services* 4,500 123 Raytheon 11,068 685 Republic Services 3,923 130 Robert Half International 3,576 96 Rockwell Automation 3,604 245 - -------------------------------------------------------------------------------- 34 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Rockwell Collins 4,262 $ 307 Roper Industries 2,100 133 RR Donnelley & Sons 5,677 208 Ryder System 1,506 65 Shaw Group* 2,200 140 Southwest Airlines (B) 17,920 254 Spirit Aerosystems Holdings, Cl A* 1,600 56 SPX 1,411 144 Steelcase, Cl A 2,475 37 Stericycle* 2,226 131 Sunpower, Cl A (B)* 700 87 Teleflex 840 51 Terex* 2,548 164 Textron 6,322 437 Thomas & Betts* 1,367 74 Timken 2,260 72 Toro 1,060 59 Trane 4,272 157 Trinity Industries (B) 2,200 56 Tyco International 12,300 494 UAL (B)* 2,800 115 Union Pacific 6,708 846 United Parcel Service, Cl B 17,041 1,256 United Rentals (B)* 2,100 49 United Technologies 25,166 1,882 URS* 1,400 80 US Airways Group (B)* 2,400 50 USG (B)* 1,798 66 UTI Worldwide 2,400 57 Waste Management 12,794 439 WESCO International* 1,300 53 WW Grainger 1,581 140 YRC Worldwide (B)* 1,708 30 -------------- 44,273 -------------- INFORMATION TECHNOLOGY -- 15.6% Accenture, Cl A (B) 14,700 508 Activision* 6,778 150 Acxiom 2,400 30 ADC Telecommunications* 2,967 49 Adobe Systems* 14,602 615 Advanced Micro Devices (B)* 13,734 134 Affiliated Computer Services, Cl A* 2,147 90 Agilent Technologies* 10,264 388 Akamai Technologies* 3,918 149 Alliance Data Systems* 2,112 164 Altera (B) 8,873 167 Amdocs* 5,000 165 Amphenol, Cl A 4,292 186 Analog Devices 8,312 256 Apple* 21,723 3,958 Applied Materials 34,355 647 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Arrow Electronics* 2,889 $ 107 Atmel* 12,000 53 Autodesk* 5,837 275 Automatic Data Processing 13,692 617 Avnet* 3,610 125 AVX 1,424 20 BEA Systems* 10,507 166 BMC Software* 4,889 162 Broadcom, Cl A* 11,568 309 Broadridge Financial Solutions* 3,873 88 Brocade Communications Systems* 9,800 71 CA (B) 10,338 253 Cadence Design Systems (B)* 6,863 114 Checkfree* 2,072 99 Ciena (B)* 2,314 102 Cisco Systems* 152,827 4,282 Citrix Systems* 4,487 166 Cognizant Technology Solutions, Cl A* 7,488 233 CommScope* 1,500 61 Computer Sciences* 4,164 220 Compuware* 8,751 72 Convergys* 3,669 60 Corning 39,158 951 Cree (B)* 2,222 55 Cypress Semiconductor (B)* 3,600 120 Dell* 56,843 1,395 Diebold 1,829 62 Dolby Laboratories, Cl A* 843 42 DST Systems* 1,295 110 eBay* 28,511 956 Electronic Arts* 7,665 431 Electronic Data Systems (B) 12,942 262 EMC* 52,364 1,009 F5 Networks* 2,038 54 Factset Research Systems 1,200 75 Fair Isaac (B) 1,626 60 Fairchild Semiconductor International* 3,400 54 Fidelity National Information Services 5,028 217 Fiserv* 4,269 219 Genpact (B)* 1,400 20 Global Payments 1,834 79 Google, Cl A* 5,708 3,956 Harris 3,489 219 Hewitt Associates, Cl A* 2,163 81 Hewlett-Packard 67,401 3,448 Ingram Micro, Cl A* 4,123 82 Integrated Device Technology* 5,600 68 Intel 146,258 3,814 International Business Machines (B) 34,298 3,608 International Rectifier (B)* 1,755 57 Intersil, Cl A 3,261 81 Intuit* 8,486 249 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 35 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Iron Mountain* 4,363 $ 159 Jabil Circuit 4,874 83 JDS Uniphase (B)* 5,140 69 Juniper Networks* 12,725 378 Kla-Tencor 4,809 231 Lam Research* 2,991 137 Lexmark International, Cl A* 2,186 76 Linear Technology (B) 5,557 169 LSI Logic* 16,948 94 Marvell Technology Group* 11,900 178 Mastercard, Cl A (B) 2,000 401 McAfee* 3,773 147 MEMC Electronic Materials* 5,738 445 Metavante Technologies* 2,120 48 Mettler Toledo International* 1,036 121 Microchip Technology 5,622 162 Micron Technology (B)* 19,416 162 Microsoft 206,600 6,942 Molex 3,570 98 MoneyGram International 2,400 37 Motorola 57,734 922 National Instruments 1,436 48 National Semiconductor (B) 6,656 152 NAVTEQ (B)* 2,569 192 NCR* 4,389 105 Network Appliance* 9,055 224 Novell* 8,426 59 Novellus Systems* 2,877 75 Nvidia* 13,956 440 Oracle* 96,567 1,949 Paychex (B) 8,307 324 QLogic* 4,180 57 Qualcomm 42,150 1,719 Rambus* 2,500 49 Red Hat (B)* 5,327 107 Riverbed Technology* 300 9 Salesforce.com* 2,438 138 SanDisk (B)* 5,743 215 Sanmina-SCI* 14,365 25 Seagate Technology 13,800 356 Silicon Laboratories* 1,400 52 Sun Microsystems* 22,069 459 Symantec (B)* 23,048 410 Synopsys* 3,882 96 Tech Data* 1,550 58 Tellabs* 11,889 83 Teradata* 4,389 114 Teradyne* 4,963 54 Texas Instruments 35,808 1,131 Total System Services (B) 969 27 Trimble Navigation (B)* 3,114 115 Tyco Electronics* 12,200 456 Unisys* 8,532 42 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Varian Semiconductor Equipment Associates* 1,800 $ 75 VeriFone Holdings (B)* 1,800 87 VeriSign* 5,385 220 Vishay Intertechnology* 4,350 54 VMware, Cl A (B)* 900 82 Western Digital* 5,930 164 Western Union 19,028 430 Xerox* 24,051 406 Xilinx 7,557 166 Yahoo! (B)* 30,081 807 Zebra Technologies, Cl A* 1,825 70 -------------- 60,105 -------------- MATERIALS -- 3.6% Air Products & Chemicals 5,394 534 Airgas 2,015 100 AK Steel Holding* 2,700 120 Albemarle 2,144 95 Alcoa 21,602 786 Allegheny Technologies 2,497 244 Ashland 1,576 78 Ball 2,375 110 Bemis (B) 2,774 75 Cabot 1,673 58 Carpenter Technology 1,400 106 Celanese, Ser A 3,383 134 Chemtura 6,854 51 Cleveland-Cliffs 1,000 90 Commercial Metals 2,800 86 Crown Holdings* 4,551 117 Cytec Industries 1,081 66 Domtar* 10,737 82 Dow Chemical 23,770 997 E.I. Du Pont de Nemours 23,092 1,066 Eagle Materials (B) 1,400 55 Eastman Chemical 2,142 137 Ecolab 4,191 201 FMC 2,060 113 Freeport-McMoRan Copper & Gold, Cl B (B) 9,512 941 Huntsman 2,429 62 International Flavors & Fragrances 1,891 95 International Paper 11,155 376 Louisiana-Pacific 2,846 44 Lubrizol 1,734 111 Lyondell Chemical 6,009 284 Martin Marietta Materials (B) 1,063 143 MeadWestvaco 4,758 156 Monsanto 13,750 1,366 Mosaic* 3,778 261 Nalco Holding 3,317 79 - -------------------------------------------------------------------------------- 36 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Newmont Mining 10,533 $ 523 Nucor 7,690 455 Owens-Illinois* 4,091 184 Packaging of America 2,699 76 Pactiv* 3,483 88 PPG Industries 4,123 283 Praxair 7,925 677 Reliance Steel & Aluminum 1,800 93 Rohm & Haas 3,653 199 RPM International 2,969 57 Scotts Miracle-Gro, Cl A 1,006 37 Sealed Air (B) 4,268 100 Sigma-Aldrich 3,148 166 Smurfit-Stone Container* 6,845 75 Sonoco Products 2,646 80 Southern Copper (B) 1,816 201 Steel Dynamics 2,200 111 Temple-Inland 2,575 118 Titanium Metals (B)* 1,558 46 United States Steel 2,983 291 Valspar 2,664 60 Vulcan Materials 2,657 236 Westlake Chemical 600 12 Weyerhaeuser 5,478 401 -------------- 13,988 -------------- TELECOMMUNICATION SERVICES -- 3.3% American Tower, Cl A* 10,722 488 AT&T 155,233 5,931 CenturyTel 2,701 115 Citizens Communications (B) 9,155 119 Clearwire, Cl A (B)* 900 14 Crown Castle International* 5,596 235 Embarq 3,932 200 Leap Wireless International* 1,400 49 Level 3 Communications (B)* 40,400 136 MetroPCS Communications* 1,400 24 NeuStar, Cl A* 1,700 54 NII Holdings* 4,220 233 Qwest Communications International (B)* 39,596 263 SBA Communications, Cl A* 2,400 90 Sprint Nextel 70,244 1,090 Telephone & Data Systems 2,502 156 US Cellular* 431 35 Verizon Communications 72,815 3,146 Windstream 11,947 155 -------------- 12,533 -------------- UTILITIES -- 3.8% AES* 16,424 359 AGL Resources 1,947 72 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Allegheny Energy* 4,266 $ 259 Alliant Energy 2,676 111 Ameren (B) 5,390 290 American Electric Power 10,150 484 Aqua America (B) 3,177 70 Atmos Energy 2,491 65 Centerpoint Energy (B) 8,015 143 CMS Energy (B) 6,142 107 Consolidated Edison (B) 7,016 340 Constellation Energy Group 4,458 447 Dominion Resources (B) 14,512 685 DPL 3,246 98 DTE Energy (B) 4,264 209 Duke Energy (B) 31,219 618 Dynegy, Cl A* 7,918 60 Edison International 8,279 463 Energen 1,637 104 Energy East 4,167 115 Entergy 4,898 586 Equitable Resources 2,866 152 Exelon 16,829 1,364 FirstEnergy 7,781 533 FPL Group 10,373 724 Great Plains Energy 2,271 67 Hawaiian Electric Industries 2,146 50 Integrys Energy Group 2,002 102 MDU Resources Group 4,621 126 Mirant (B)* 6,261 242 National Fuel Gas (B) 2,289 109 NiSource 7,421 137 Northeast Utilities 3,907 123 NRG Energy (B)* 6,100 259 NSTAR 2,928 103 OGE Energy 2,268 81 Oneok 2,529 118 Pepco Holdings 4,944 139 PG&E 8,718 403 Pinnacle West Capital 2,592 111 PPL 9,826 501 Progress Energy (B) 6,361 311 Public Service Enterprise Group 6,326 606 Puget Energy 2,661 75 Questar 4,146 222 Reliant Energy* 8,259 215 SCANA (B) 3,020 129 Sempra Energy 6,523 408 Sierra Pacific Resources 5,600 96 Southern 18,703 704 Southern Union 2,768 83 TECO Energy 4,800 83 UGI 2,950 78 Vectren 1,991 58 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 37 SCHEDULE OF INVESTMENTS (Unaudited) Large Cap Index Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wisconsin Energy 2,749 $ 132 Xcel Energy (B) 9,881 228 -------------- 14,557 -------------- Total Common Stock (Cost $248,608) ($ Thousands) 374,246 -------------- CORPORATE OBLIGATION (C)(E) -- 0.1% FINANCIALS -- 0.1% SLM MTN 4.660%, 12/17/07 $ 668 668 -------------- Total Corporate Obligation (Cost $668) ($ Thousands) 668 -------------- CASH EQUIVALENTS -- 11.8% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 8,278,457 8,278 SEI Liquidity Fund L.P. 5.110%++** (C) 37,058,978 37,059 -------------- Total Cash Equivalents (Cost $45,337) ($ Thousands) 45,337 -------------- U.S. TREASURY OBLIGATION (A) (D) -- 0.2% U.S. Treasury Bill 4.194%, 12/06/07 755 755 -------------- Total U.S. Treasury Obligation (Cost $754) ($ Thousands) 755 -------------- Total Investments -- 109.3% (Cost $295,367) ($ Thousands) $ 421,006 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED TYPE OF NUMBER OF EXPIRATION DEPRECIATION CONTRACT CONTRACTS DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- S&P 500 Index E-Mini 137 Dec-2007 $ (67) S&P Mid 400 Index E-Mini 7 Dec-2007 (3) -------------- $ (70) ============== - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $385,112 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007. The total value of securities on loan at November 30, 2007 was $36,986 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan. The total value of such securities as of November 30, 2007 was $37,727 ($ Thousands). (D) The rate reported is the effective yield at time of purchase. (E) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (F) The Fund may purchase securities of sertain companies with which it is affiliated to the extent these companies are represented in its benchmark Index. Cl -- Class L.P. -- Limited Partnership MTN -- Medium Term Note Ser -- Series The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 38 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Short-Term Investments 24.1% Information Technology 16.1% Financials 14.1% Industrials 10.6% Consumer Discretionary 10.2% Health Care 9.7% Energy 5.0% Materials 3.7% Utilities 2.5% Consumer Staples 2.3% Telecommunication Services 1.5% Convertible Bond 0.1% U.S. Treasury Obligation 0.1% Exchange Traded Fund 0.0% Warrants 0.0% Rights 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 96.8% CONSUMER DISCRETIONARY -- 13.1% Advance Auto Parts (B) 24,400 $ 877 Aeropostale* 60,781 1,553 AFC Enterprises* 3,900 43 Aftermarket Technology (B)* 46,907 1,310 Airmedia Group ADR (B)* 50,400 889 Amazon.com* 861 78 American Axle & Manufacturing Holdings (B) 102,280 2,365 American Greetings, Cl A (B) 140,367 3,265 AnnTaylor Stores* 49,711 1,514 Arctic Cat 68,600 732 ArvinMeritor (B) 112,700 1,139 Audiovox, Cl A* 9,856 126 Bally Technologies* 32,322 1,348 Bebe Stores (B) 73,200 988 Belo, Cl A 118,572 1,964 Big Lots* 31,096 581 BJ's Restaurants (B)* 52,700 938 Blockbuster, Cl A* 151,288 540 Blue Nile (B)* 16,500 1,218 Bluegreen* 11,399 82 Blyth 64,455 1,268 Bob Evans Farms 4,257 131 Bright Horizons Family Solutions* 3,000 113 Brinker International 11,773 271 Brown Shoe 62,258 1,056 Buckle 25,700 907 California Pizza Kitchen* 21,900 348 Capella Education* 20,705 1,458 Carrols Restaurant Group* 68,060 726 Carter's* 92,913 2,084 Casual Male Retail Group (B)* 223,000 1,383 Cato, Cl A 77,000 1,160 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cavco Industries* 10,670 $ 403 CBRL Group (B) 97,781 3,272 CEC Entertainment* 23,870 680 Century Casinos* 89,770 557 Champion Enterprises (B)* 56,700 511 Charlotte Russe Holding* 29,600 487 Charming Shoppes* 336,600 1,861 Charter Communications, Cl A* 33,803 45 Cheesecake Factory* 24,900 580 Chico's FAS* 4,800 54 Childrens Place Retail Stores* 46,000 1,309 Chipotle Mexican Grill, Cl A (B)* 9,800 1,305 Cinemark Holdings* 28,231 471 CKE Restaurants 23,700 346 Coach* 52,100 1,935 Collective Brands* 27,100 415 Cooper Tire & Rubber 151,160 2,325 Core-Mark Holding* 5,400 145 Corinthian Colleges* 117,101 2,045 Courier 18,029 593 CROCS (B)* 208,147 8,124 CSK Auto* 48,630 474 CSS Industries 10,000 396 Ctrip.com International ADR* 18,595 1,118 Dana (B) 228,600 13 Denny's* 55,115 226 DeVry 15,143 833 Dick's Sporting Goods* 27,547 861 Dolan Media* 47,695 1,264 Domino's Pizza 37,700 522 Dover Downs Gaming & Entertainment (B) 27,650 306 DreamWorks Animation SKG, Cl A* 6,500 171 Dress Barn* 54,037 764 Drew Industries (B)* 35,000 956 DSW, Cl A (B)* 83,500 1,878 Dufry South America (United Kingdom)* 41,300 1,203 Eddie Bauer Holdings (B)* 229,300 1,534 Einstein Noah Restaurant Group* 20,300 362 Entercom Communications 43,144 703 Entravision Communications, Cl A* 16,042 120 Ethan Allen Interiors (B) 96,513 2,756 Focus Media Holding ADR (B)* 34,825 1,966 Furniture Brands International (B) 114,900 1,164 G-III Apparel Group* 12,800 184 Gaiam, Cl A (B)* 138,811 3,269 Gaylord Entertainment (B)* 10,400 437 Genius Products* 425,550 796 Getty Images* 5,983 174 Gildan Activewear* 34,700 1,323 Global Sources (B)* 18,700 569 Group 1 Automotive (B) 66,700 1,793 GSI Commerce (B)* 126,991 3,317 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 39 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Gymboree* 78,935 $ 2,633 Handleman (B) 59,100 131 Harris Interactive* 190,144 797 hhgregg* 91,360 1,284 Hibbett Sports (B)* 121,729 2,607 IHOP 6,686 339 Interactive Data 10,400 325 iRobot* 7,400 119 ITT Educational Services* 1,971 223 J Crew Group (B)* 20,100 966 Jackson Hewitt Tax Service 106,486 3,434 Jakks Pacific* 84,435 2,131 Jamba (B)* 47,900 164 Jarden (B)* 88,850 2,342 Jo-Ann Stores* 25,063 413 Jos. A. Bank Clothiers (B)* 46,235 1,197 Journal Communications, Cl A 152,400 1,387 Journal Register 65,680 144 Kellwood 53,000 794 La-Z-Boy 53,926 294 Lakeland Industries* 104,494 1,129 Leapfrog Enterprises (B)* 96,522 647 Lear* 30,000 883 Lee Enterprises 65,200 913 Libbey 111,529 1,730 Life Time Fitness (B)* 95,942 5,212 Lifetime Brands 105,010 1,346 Lin TV, Cl A* 35,090 394 LKQ* 77,200 3,066 Lumber Liquidators (B)* 12,700 114 M/I Homes (B) 3,700 37 Maidenform Brands* 13,300 174 MarineMax (B)* 55,400 906 Martha Stewart Living Omnimedia, Cl A (B)* 132,600 1,346 Marvel Entertainment (B)* 77,870 2,157 McCormick & Schmick's Seafood Restaurants* 105,511 1,547 MDC Partners, Cl A* 403,310 3,815 Media General, Cl A 29,509 731 Men's Wearhouse 26,058 899 Modine Manufacturing 65,400 1,330 Monarch Casino & Resort* 19,800 506 Morgans Hotel Group (B)* 58,710 1,086 Morningstar* 15,893 1,293 Movado Group 22,387 620 Movie Gallery* 16,023 1 National CineMedia* 62,174 1,721 Nautilus (B) 48,200 277 NetFlix* 17,526 405 NexCen Brands* 74,938 337 Nexstar Broadcasting Group, Cl A* 17,300 157 Noah Education ADR (B)* 64,400 503 Nutri/System (B)* 73,032 1,837 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- O'Charleys (B) 56,768 $ 846 Orient-Express Hotels, Cl A 25,900 1,603 Outdoor Channel Holdings (B)* 31,400 219 Pacific Sunwear of California* 94,070 1,541 PC Mall* 10,515 114 Perry Ellis International* 39,533 637 PF Chang's China Bistro* 21,000 537 Phillips-Van Heusen 41,200 1,748 Pier 1 Imports (B)* 100,500 414 Pinnacle Entertainment* 68,800 1,889 Playboy Enterprises, Cl B* 7,525 71 Polaris Industries (B) 57,700 2,629 Pool (B) 22,700 484 Pre-Paid Legal Services* 4,362 218 priceline.com (B)* 34,715 3,951 Princeton Review* 64,900 493 Quiksilver (B)* 707,100 7,495 Raser Technologies (B)* 14,500 181 RC2* 40,462 1,177 RCN 11,823 172 Red Robin Gourmet Burgers (B)* 35,600 1,408 Regis (B) 115,120 3,383 Rent-A-Center* 137,370 1,945 RRSat Global Communications Network* 65,600 1,384 Ruby Tuesday (B) 73,100 958 Ruth's Chris Steak House (B)* 44,400 537 Ryland Group (B) 45,287 1,042 Sally Beauty Holdings (B)* 116,104 1,058 Scholastic* 50,826 1,791 Sealy 18,464 241 Select Comfort* 32,234 343 Shoe Carnival* 33,417 389 Shuffle Master* 18,995 254 Shutterfly (B)* 128,100 3,650 Sinclair Broadcast Group, Cl A (B) 12,100 125 Skechers U.S.A., Cl A* 35,400 802 Smith & Wesson Holding* 9,003 90 Snap-On 20,335 994 Sonic Automotive, Cl A (B) 136,200 3,148 Sotheby's Holdings (B) 51,196 1,917 Stage Stores 31,137 527 Stamps.com* 5,450 69 Standard Motor Products 6,821 51 Standard-Pacific 90,479 313 Starwood Hotels & Resorts Worldwide 73,500 3,945 Stewart Enterprises, Cl A 50,304 412 Stoneridge* 27,800 231 Sturm Ruger* 5,344 49 Sun-Times Media Group, Cl A 44,045 44 Talbots (B) 87,800 1,362 Tecnisa (Brazil)* 251,700 1,700 Tempur-Pedic International (B) 70,800 2,102 Tenneco* 4,811 142 - -------------------------------------------------------------------------------- 40 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Texas Roadhouse, Cl A* 67,952 $ 855 Thor Industries 30,875 1,088 Thunderbird Resorts* 140,900 1,268 Timberland, Cl A (B)* 113,200 1,843 Town Sports International Holdings* 19,100 193 Triarc, Cl B 38,600 325 True Religion Apparel (B)* 93,400 1,627 Tupperware Brands 90,660 3,162 Tween Brands* 11,700 295 Ulta Salon Cosmetics & Fragrance* 4,450 115 Under Armour, Cl A (B)* 63,515 3,155 Universal Electronics* 31,620 1,168 Universal Technical Institute* 4,500 79 Vail Resorts (B)* 35,666 1,980 Valassis Communications* 48,400 597 Valuevision Media, Cl A* 77,620 511 Visteon* 34,878 153 Volcom (B)* 47,505 1,281 Warnaco Group* 31,313 1,155 Warner Music Group (B) 137,811 1,040 West Marine* 13,214 117 WMS Industries (B)* 80,350 2,684 World Wrestling Entertainment, Cl A 52,800 832 XM Satellite Radio Holdings, Cl A* 55,400 864 Zale (B)* 77,400 1,385 Zumiez (B)* 97,863 2,721 -------------- 243,531 -------------- CONSUMER STAPLES -- 3.0% Alliance One International* 324,279 1,339 American Dairy* 4,600 77 American Oriental Bioengineering (B)* 13,300 156 Andersons 7,712 327 Asiatic Development (Malaysia)* 856,700 1,884 B&G Foods, Cl A 34,700 371 Bare Escentuals (B)* 28,900 608 BJ's Wholesale Club* 79,100 2,962 Boston Beer, Cl A* 28,309 940 Casey's General Stores 23,678 687 Central Garden and Pet (B)* 61,593 331 Central Garden and Pet, Cl A (B)* 77,694 408 Chattem (B)* 20,875 1,480 Chiquita Brands International* 77,045 1,478 Coca-Cola Bottling 2,040 116 Corn Products International 33,478 1,317 Cosan SA Industria e Comercio (Brazil)* 182,500 2,156 Darling International* 119,680 1,227 Dean Foods 39,818 993 Del Monte Foods 75,200 662 Elizabeth Arden* 44,217 1,063 Fresh Del Monte Produce 20,967 648 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Green Mountain Coffee Roasters* 5,120 $ 167 Hain Celestial Group (B)* 42,500 1,406 Herbalife 26,551 1,112 Imperial Sugar 4,097 93 Inter Parfums 56,500 1,032 J&J Snack Foods 17,813 577 JM Smucker 12,054 592 Lancaster Colony 27,325 1,053 Lance 134,977 2,799 Longs Drug Stores 76,036 4,024 Molson Coors Brewing, Cl B 44,000 2,369 Nash Finch (B) 52,596 1,877 NBTY* 13,541 404 Pantry (B)* 67,240 1,936 Performance Food Group* 26,759 741 Prestige Brands Holdings* 50,100 420 Ralcorp Holdings (B)* 24,333 1,494 Revlon, Cl A* 226,432 254 Ruddick 86,963 3,112 Sanderson Farms (B) 40,900 1,270 Spartan Stores 11,400 257 TreeHouse Foods* 36,545 861 United Natural Foods* 2,705 79 Universal (B) 79,255 4,254 USANA Health Sciences (B)* 12,900 538 WD-40 2,786 111 Weis Markets 41,200 1,686 -------------- 55,748 -------------- ENERGY -- 6.4% Allis-Chalmers Energy* 8,847 134 Alon USA Energy (B) 42,103 1,171 American Oil & Gas* 72,200 465 Approach Resources* 37,600 485 Arena Resources* 84,845 3,189 Arlington Tankers (B) 81,000 1,738 Atlas America 20,383 1,157 ATP Oil & Gas* 61,072 2,723 Atwood Oceanics* 7,200 628 Aurora Oil & Gas* 231,150 312 BA Energy PIPE (Canada) (F) (G) (H)* 119,000 833 BA Energy, Deal #3 PIPE (Canada) (F) (G) (H)* 30,500 214 Basic Energy Services (B)* 89,813 1,751 Berry Petroleum, Cl A 30,332 1,255 Bill Barrett* 10,074 389 Bois d'Arc Energy* 39,300 770 BP Prudhoe Bay Royalty Trust* 1,200 88 BPZ Energy PIPE (F) (G) (H)* 205,289 2,340 BPZ Resources* 26,500 302 Cal Dive International (B)* 231,700 2,875 CARBO Ceramics (B) 32,100 1,274 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 41 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Carrizo Oil & Gas* 35,289 $ 1,710 Cimarex Energy (B) 50,300 1,943 Complete Production Services (B)* 146,800 2,601 Comstock Resources* 54,400 1,822 Core Laboratories* 16,280 1,909 Crosstex Energy 2,600 93 CVR Energy (B)* 70,700 1,557 Delek US Holdings 100,400 1,851 Delta Petroleum (B)* 55,182 848 Denbury Resources* 19,767 1,054 Double Hull Tankers 75,020 995 Dresser-Rand Group* 35,200 1,253 Dril-Quip* 36,077 2,036 Edge Petroleum 116,900 690 Encore Acquisition (B)* 27,550 897 Energy Partners* 145,782 1,805 EXCO Resources* 31,459 440 Exterran Holdings* 38,572 3,087 Forest Oil* 5,300 250 Foundation Coal Holdings 13,700 623 FX Energy* 9,600 71 GeoMet* 186,750 908 Global Industries (B)* 53,500 1,186 GMX Resources* 14,061 450 Goodrich Petroleum (B)* 29,400 718 Grey Wolf (B)* 440,800 2,239 Gulf Island Fabrication 16,900 538 Gulfmark Offshore (B)* 12,700 564 Harvest Natural Resources* 29,875 389 Helix Energy Solutions Group* 2,800 114 Helmerich & Payne 29,735 1,027 Hercules Offshore* 87,653 2,192 Holly 14,500 703 Horizon Offshore* 17,000 288 Infinity Bio-Energy* 607,719 2,935 ION Geophysical (B)* 300,435 4,636 Kodiak Oil & Gas* 314,800 749 Lufkin Industries 12,500 650 Mariner Energy (B)* 69,300 1,502 Matrix Service* 25,507 666 McMoRan Exploration* 24,313 286 Meridian Resource* 27,641 48 Mitcham Industries* 15,347 279 NATCO Group, Cl A* 31,080 1,478 Natural Gas Services Group* 26,400 476 Newpark Resources* 262,920 1,415 North American Energy Partners* 33,200 428 Oil States International* 51,100 1,620 Oilsands Quest (B)* 226,600 1,020 Oilsands Quest PIPE (F) (G) (H)* 74,000 333 OPTI (Canada)* 103,800 1,848 Parallel Petroleum* 45,628 874 Parker Drilling* 70,800 506 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Penn Virginia 24,037 $ 1,000 PetroHawk Energy* 61,165 997 Petroleum Development* 16,160 819 Pioneer Drilling* 10,517 125 Quicksilver Resources* 1,800 91 Regency Energy Partners LP 3,975 123 Rentech (B)* 834,031 1,735 Rosetta Resources (B)* 114,943 2,104 RPC (B) 136,200 1,512 SEACOR Holdings* 10,200 924 St Mary Land & Exploration 18,600 731 StealthGas 73,100 1,192 Stone Energy (B)* 62,681 2,833 Superior Energy Services* 68,361 2,386 Superior Well Services (B)* 83,500 1,619 Swift Energy* 75,834 3,072 Synenco Energy (Canada) (F) (G) (H)* 27,419 204 Synenco Energy, Cl A (Canada)* 185,000 1,379 Tesoro 44,682 2,198 Tetra Technologies* 59,900 947 Trico Marine Services* 363 13 TXCO Resources* 5,100 62 Uranium One (Canada)* 127,375 1,183 Uranium Resources* 22,220 264 USEC (B)* 73,963 607 Vaalco Energy* 45,838 200 Venoco* 27,900 509 W-H Energy Services* 56,834 2,870 Warren Resources* 25,400 324 Willbros Group* 4,500 169 World Fuel Services 30,700 971 -------------- 117,856 -------------- FINANCIALS -- 17.7% Acadia Realty Trust+ 54,300 1,433 Advance America Cash Advance Centers 77,251 705 Advanta, Cl B (B) 46,147 462 Affiliated Managers Group (B)* 54,982 6,832 Alesco Financial* 137,200 510 Alexander's+* 727 283 Alexandria Real Estate Equities+ 9,320 916 AMB Property+ (B) 34,700 2,122 AmCOMP* 24,810 245 Amcore Financial (B) 43,120 1,013 American Campus Communities 27,258 705 American Equity Investment Life Holding (B) 134,705 1,214 American Physicians Capital 13,500 566 Ameris Bancorp 8,700 146 Amerisafe* 61,087 932 Anchor Bancorp Wisconsin (B) 23,100 587 Annaly Capital Management+ 161,838 2,785 - -------------------------------------------------------------------------------- 42 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Anthracite Capital+ (B) 99,917 $ 763 Anworth Mortgage Asset+ 50,359 354 AON 41,900 2,094 Arbor Realty Trust+ (B) 68,652 1,174 Ares Capital 36,200 545 Argo Group International Holdings* 14,119 558 Ashford Hospitality Trust+ 141,370 1,094 Aspen Insurance Holdings (B) 47,800 1,377 Assured Guaranty 42,000 948 AvalonBay Communities+ (B) 36,600 3,640 BancFirst (B) 7,800 365 Bancorpsouth 113,181 2,768 Bank Mutual 91,331 924 Bank of the Ozarks (B) 12,800 372 Bankunited Financial, Cl A 123,877 989 Berkshire Hills Bancorp 21,700 527 BioMed Realty Trust+ (B) 20,800 470 Boston Properties+ (B) 41,600 4,094 Brandywine Realty Trust+ (B) 67,100 1,376 Brasil Brokers Participacoes* 2,700 1,747 Calamos Asset Management, Cl A 30,190 894 Canaccord Capital (Canada)* 61,100 970 Canaccord Capital (Canada) 15,100 240 Capital Lease Funding+ 173,400 1,526 Capital Trust, Cl A+ (B) 7,545 232 CapitalSource+ 103,127 1,728 Capstead Mortgage+ 159,500 1,946 Cardinal Financial 64,253 616 Cascade Bancorp (B) 21,002 364 Cash America International 69,407 2,497 Castlepoint Holdings* 134,500 1,582 CB Richard Ellis Group, Cl A* 42,988 1,021 Center Financial 18,000 221 Centerline Holding 12,300 149 Central Pacific Financial 34,699 701 Chemical Financial (B) 54,900 1,378 Chimera Investment* 47,074 730 Citizens Republic Bancorp (B) 43,247 615 City Bank (B) 7,308 152 City Holding 9,500 342 CME Group 1,634 1,076 CNA Surety* 53,300 1,100 Cohen & Steers (B) 35,000 993 Columbia Bancorp (B) 18,100 322 Commerce Group (B) 54,200 1,948 Community Bancorp* 6,137 111 Community Bank System (B) 32,900 664 Community Trust Bancorp 13,192 373 Companhia Brasileira de Desenvolvimento Imobiliari Turistico (Brazil)* 3,800 1,740 CompuCredit* 26,080 338 Corporate Office Properties Trust+ 79,600 2,875 Corus Bankshares (B) 42,291 401 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cousins Properties+ (B) 47,900 $ 1,139 Crawford, Cl B* 13,724 55 Darwin Professional Underwriters* 30,800 708 DCT Industrial Trust+ (B) 57,800 583 Dearborn Bancorp* 38,346 392 Delphi Financial Group, Cl A 96,500 3,709 DiamondRock Hospitality+ (B) 51,111 885 Digital Realty Trust+ 12,090 461 Dime Community Bancshares 52,822 717 Discover Financial Services* 22,554 392 Dollar Financial (B)* 64,591 1,930 Downey Financial 12,000 499 DuPont Fabros Technology* 46,332 869 East West Bancorp (B) 63,550 1,713 Eaton Vance 36,968 1,618 Education Realty Trust+ 72,733 872 eHealth (B)* 23,881 740 EMC Insurance Group 5,271 128 Employers Holdings (B) 77,084 1,371 Encore Bancshares* 14,430 296 Endurance Specialty Holdings 17,176 694 Equity Lifestyle Properties+ 14,442 670 Equity One+ (B) 46,519 1,101 Equity Residential+ 125,600 4,674 Essex Property Trust+ (B) 20,300 2,106 Evercore Partners, Cl A 142,900 2,997 Extra Space Storage+ (B) 121,400 1,731 Ezcorp, Cl A* 63,552 798 FBL Financial Group, Cl A 40,400 1,498 FBR Capital Markets* 26,115 263 FCStone Group* 37,592 1,587 Federal Agricultural Mortgage, Cl C 20,500 558 Federal Realty Investment Trust+ 25,500 2,121 Federated Investors, Cl B 54,800 2,235 FelCor Lodging Trust+ (B) 45,141 790 Financial Federal (B) 35,800 791 First American (B) 48,400 1,654 First Cash Financial Services* 81,600 1,387 First Financial Bancorp (B) 84,087 965 First Financial Bankshares 10,100 394 First Financial Holdings 1,400 38 First Industrial Realty Trust+ (B) 11,856 433 First Marblehead 10,000 300 First Merchants 34,800 755 First Mercury Financial* 61,381 1,303 First Midwest Bancorp 74,668 2,442 First Niagara Financial Group 99,300 1,234 First Regional Bancorp* 3,400 75 First State Bancorporation 19,250 281 FirstFed Financial (B)* 81,525 2,855 FirstMerit (B) 159,395 3,285 Flagstar Bancorp (B) 82,300 518 Flushing Financial 34,900 561 FNB (Pennsylvania) 25,442 395 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 43 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Fpic Insurance Group* 29,200 $ 1,248 Frontier Financial (B) 27,525 527 GAMCO Investors, Cl A 17,247 919 General Shopping Brasil (Brazil)* 218,300 2,087 GFI Group* 800 78 Glacier Bancorp (B) 19,682 392 Gluskin Sheff + Associates (Canada)* 60,500 1,530 GMP Capital Trust (Canada) 59,500 1,399 Gramercy Capital+ (B) 135,782 3,229 Greenhill (B) 42,300 3,058 Grubb & Ellis (B)* 31,000 160 Grubb & Ellis Realty Advisors* 326,900 2,043 Hallmark Financial Services* 12,900 193 Hancock Holding (B) 39,739 1,558 Hanmi Financial (B) 41,699 400 Hanover Insurance Group 22,314 1,006 Harleysville Group 4,600 161 HCP+ 58,700 1,964 Health Care+ 12,928 579 Hercules Technology Growth Capital 110,361 1,303 Hersha Hospitality Trust+ 241,600 2,459 Highbury Financial (B)* 27,700 129 Highbury Financial Units* 118,000 649 Hilb Rogal & Hobbs (B) 66,100 2,826 Horace Mann Educators 40,208 786 Horizon Financial 8,525 147 HRPT Properties Trust+ 159,600 1,321 IMPAC Mortgage Holdings+ (B) 87,200 53 Imperial Capital Bancorp 5,264 120 Independent Bank 16,286 156 IndyMac Bancorp 28,259 270 Infinity Property & Casualty 24,129 943 IntercontinentalExchange* 4,900 818 International Bancshares 15,945 351 Intervest Bancshares 2,950 47 Investors Bancorp* 26,300 386 Investors Real Estate Trust+ (B) 160,700 1,617 IPC Holdings (B) 24,442 723 Irwin Financial 47,500 386 Jefferies Group 133,400 3,410 Jones Lang LaSalle 4,284 360 Kansas City Life Insurance 17,790 802 KBW (B)* 28,600 755 LandAmerica Financial Group (B) 12,600 332 Lazard, Cl A 20,590 1,002 Luminent Mortgage Capital+ (B) 151,300 156 Macerich+ (B) 37,100 2,881 Mack-Cali Realty+ 85,600 3,055 Maguire Properties+ 16,029 405 MarketAxess Holdings* 38,370 551 Marlin Business Services* 44,698 603 Marsh & McLennan 57,392 1,442 Max Capital 29,100 824 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Meadowbrook Insurance Group* 174,070 $ 1,600 Meruelo Maddux Properties* 279,900 1,176 MFA Mortgage Investments+ 354,340 3,111 MGIC Investment 6,722 158 Mid-America Apartment Communities+ 20,556 993 Montpelier Re Holdings 24,700 428 Move* 623,939 1,466 MSCI, Cl A (B)* 62,685 1,733 MVC Capital 25,800 415 Nara Bancorp 26,300 351 NASDAQ Stock Market (B)* 27,800 1,205 National Financial Partners 20,827 946 National Health Investors+ 7,072 201 National Retail Properties+ (B) 90,396 2,214 Navigators Group* 25,164 1,477 NBT Bancorp (B) 55,400 1,381 Nelnet, Cl A 57,405 792 New Westfield Financial* 10,000 97 New York Community Bancorp 51,760 963 NewAlliance Bancshares (B) 92,097 1,188 Newcastle Investment+ (B) 38,073 495 NNN Realty Advisors* (F) (G) (H) 169,500 1,017 NorthStar Realty Finance+ 73,650 675 Novastar Financial (B)* 5,575 11 NYSE Euronext 3,700 320 Ocwen Financial* 28,237 158 Odyssey Re Holdings 24,100 929 Old National Bancorp (B) 148,500 2,373 Old Second Bancorp (B) 11,000 291 Omega Healthcare Investors+ 12,768 206 optionsXpress Holdings (B) 59,847 1,820 Pacific Capital Bancorp (B) 28,362 583 Parkway Properties+ 1,908 76 PennantPark Investment* 28,500 327 PFF Bancorp 22,036 207 Pico Holdings (B)* 27,658 1,065 Piper Jaffray (B)* 66,944 3,101 Platinum Underwriters Holdings 102,783 3,733 PMA Capital, Cl A* 23,119 202 Portfolio Recovery Associates (B) 30,240 1,218 Post Properties+ (B) 55,238 2,006 Potlatch 10,028 460 Powershares QQQ 9,790 502 Preferred Bank 20,246 541 Presidential Life 38,700 667 ProAssurance (B)* 40,763 2,235 Procentury 16,870 237 Prologis+ 85,700 5,607 Provident Bankshares (B) 25,100 589 PS Business Parks+ 7,300 394 Public Storage+ 47,924 3,706 Rainier Pacific Financial Group 13,122 194 RAIT Financial Trust+ (B) 133,103 1,151 - -------------------------------------------------------------------------------- 44 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Ram Holdings Ltd* 86,300 $ 501 Ramco-Gershenson Properties+ 6,527 165 Realty Income+ 42,509 1,212 RenaissanceRe Holdings 12,000 709 Renasant 16,900 330 RLI 30,738 1,833 Safety Insurance Group (B) 53,346 1,948 Santander BanCorp 43,665 427 Selective Insurance Group 24,130 569 Sierra Bancorp (B) 3,600 90 Signature Bank (B)* 63,899 2,367 Simon Property Group+ 59,400 5,848 SL Green Realty+ (B) 22,800 2,369 South Financial Group 75,919 1,360 Southwest Bancorp 16,129 290 St. Joe 34,178 972 Sterling Bancshares (B) 63,232 780 Sterling Financial, Washington Shares 92,837 1,665 Stewart Information Services 72,200 1,954 Stifel Financial* 1,100 51 Strategic Hotels & Resorts+ (B) 130,600 2,391 Sun Communities+ 56,200 1,376 Sunstone Hotel Investors+ 33,500 777 Superior Bancorp (B)* 136,707 819 Susquehanna Bancshares (B) 58,400 1,162 SVB Financial Group (B)* 52,595 2,708 SWS Group 9,172 124 Taubman Centers+ 41,400 2,216 Taylor Capital Group 5,554 123 TCF Financial 24,878 483 TD Ameritrade Holding* 40,331 754 Technology Investment Capital 45,700 478 Texas Capital Bancshares* 4,800 101 TFS Financial* 5,100 63 Thornburg Mortgage+ 54,351 579 Titanium Asset* 122,200 688 Tompkins Trustco 6,700 285 Tower Group 26,180 849 TradeStation Group* 39,200 468 Triad Guaranty* 22,384 193 Trico Bancshares 3,700 78 Trustmark 36,249 923 UCBH Holdings 138,824 2,232 UMB Financial 10,869 409 UnionBanCal 20,601 1,112 United America Indemnity, Cl A* 10,900 216 United Bankshares 37,905 1,178 United Financial Bancorp 37,600 376 United Fire & Casualty 31,300 965 Universal American Financial* 27,512 656 Universal Health Realty Income Trust+ 4,672 154 Validus Holdings* 37,300 929 Ventas+ (B) 84,600 3,689 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Victory Acquisition* 48,847 $ 469 ViewPoint Financial Group 15,800 282 Virginia Commerce Bancorp (B)* 4,700 59 Waddell & Reed Financial, Cl A 50,439 1,724 Washington Federal 88,940 2,087 Washington Real Estate Investment Trust+ 16,690 535 Weingarten Realty Investors+ (B) 77,700 2,770 WesBanco (B) 44,700 1,072 West Coast Bancorp 13,200 263 Westamerica Bancorporation 17,115 805 Westfield Financial 72,300 698 Wilshire Bancorp 35,600 332 Winthrop Realty Trust+ (B) 63,800 341 Wintrust Financial 14,519 513 World Acceptance* 47,176 1,489 WR Berkley 26,100 798 WSFS Financial (B) 23,500 1,313 Zenith National Insurance 74,095 3,114 -------------- 327,294 -------------- HEALTH CARE -- 12.4% 3SBio ADR* 99,400 1,560 Abaxis (B)* 34,265 1,137 Abraxis Bioscience (B)* 8,300 490 Acadia Pharmaceuticals (B)* 77,500 879 Accelrys* 126,600 1,017 Achillion Pharmaceuticals* 71,640 356 Acorda Therapeutics* 25,130 470 Adams Respiratory Therapeutics (B)* 32,938 1,421 Advanced Medical Optics (B)* 64,900 1,637 Affymax (B)* 11,100 283 Affymetrix (B)* 162,817 3,395 Air Methods* 5,578 294 Albany Molecular Research* 56,796 750 Alexion Pharmaceuticals* 14,886 1,083 Align Technology (B)* 88,039 1,487 Alkermes* 202,229 2,884 Alliance Imaging* 22,462 215 Allscripts Healthcare Solutions* 20,100 356 Alpharma, Cl A 42,628 895 Altus Pharmaceuticals (B)* 59,200 627 AMAG Pharmaceuticals* 3,308 191 Amedisys* 60,260 2,571 America Service Group* 30,600 247 American Medical Systems Holdings (B)* 22,507 308 AMERIGROUP* 12,089 415 AMN Healthcare Services (B)* 155,700 2,628 Amsurg (B)* 92,421 2,390 Analogic 9,156 493 APP Pharmaceuticals (B)* 78,700 925 Applera -- Celera Group* 97,100 1,468 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 45 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Apria Healthcare Group (B)* 105,900 $ 2,295 Arena Pharmaceuticals (B)* 185,400 1,622 Ariad Pharmaceuticals (B)* 275,400 1,239 Array Biopharma (B)* 78,058 864 Arthrocare (B)* 7,998 433 Axcan Pharma* 109,666 2,476 Bio-Rad Laboratories, Cl A* 11,000 1,110 Bio-Reference Labs* 13,263 444 BioForm Medical* 116,950 908 BioMarin Pharmaceuticals (B)* 135,597 3,729 Bradley Pharmaceuticals* 20,987 413 Cambrex 106,091 821 Cell Genesys (B)* 238,500 556 Centene* 11,054 276 Cephalon (B)* 83,900 6,286 Charles River Laboratories International* 2,700 172 Chemed 62,354 3,376 Community Health Systems* 54,400 1,818 Computer Programs & Systems 44,401 989 Conceptus (B)* 41,600 836 Conmed (B)* 89,638 2,230 Cooper (B) 77,333 3,328 Covance* 700 61 Cross Country Healthcare (B)* 120,900 1,760 Cubist Pharmaceuticals (B)* 229,419 4,873 Cutera* 3,600 54 CV Therapeutics (B)* 509,500 4,443 Cynosure, Cl A (B)* 59,485 1,766 Cypress Bioscience (B)* 26,300 321 Datascope 6,491 237 DexCom* 47,080 407 Dionex (B)* 29,764 2,514 Discovery Laboratories (B)* 282,305 824 Eclipsys* 62,489 1,450 Emergency Medical Services, Cl A (B)* 52,024 1,600 Emergent Biosolutions* 24,200 135 Encysive Pharmaceuticals (B)* 383,300 257 eResearch Technology* 80,503 955 ev3* 12,108 177 Exelixis (B)* 250,142 2,184 Five Star Quality Care (B)* 43,500 410 Greatbatch* 29,796 613 Hanger Orthopedic Group* 65,300 683 Hansen Medical* 2,541 75 HealthExtras* 37,900 1,007 Healthspring* 149,597 2,827 HealthTronics* 159,727 677 Healthways (B)* 40,604 2,370 HMS Holdings* 4,647 144 Hologic (B)* 65,846 4,372 Human Genome Sciences (B)* 213,100 2,218 I-Flow* 98,676 1,645 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- ICU Medical* 20,400 $ 757 Illumina (B)* 87,917 5,081 Immucor* 31,300 1,038 IMS Health 13,400 313 Incyte (B)* 323,871 2,779 Indevus Pharmaceuticals* 65,968 494 InterMune (B)* 23,575 383 Intuitive Surgical* 700 229 Invacare 14,864 386 Inverness Medical Innovations (B)* 36,181 2,123 Isis Pharmaceuticals (B)* 65,091 1,151 ISTA Pharmaceuticals (B)* 161,300 834 Kendle International (B)* 36,180 1,562 Kensey Nash* 59,513 1,604 Kindred Healthcare (B)* 81,163 1,994 Landauer 4,797 241 LCA-Vision 4,500 73 LeMaitre Vascular* 57,500 405 LHC Group* 36,385 931 Lifecell* 6,400 260 LifePoint Hospitals* 113,979 3,606 Magellan Health Services* 69,163 3,143 MannKind* 69,150 650 Martek Biosciences (B)* 38,345 992 Matria Healthcare* 21,040 478 Matrixx Initiatives* 23,860 386 Medarex (B)* 450,400 5,720 Medcath* 46,636 1,185 Medical Staffing Network Holdings* 76,700 468 Medicines* 52,200 923 Medicis Pharmaceutical, Cl A (B) 95,900 2,580 Medtox Scientific* 8,421 153 Merge Technologies (B)* 25,700 34 Meridian Bioscience 47,290 1,459 Metabolix* 85,900 1,849 MGI Pharma* 40,132 1,389 Micrus Endovascular (B)* 82,000 1,501 Minrad International* 35,900 97 Molina Healthcare* 20,673 775 MWI Veterinary Supply* 25,556 1,075 Myriad Genetics (B)* 106,983 5,157 National Dentex* 21,200 332 Neurocrine Biosciences (B)* 78,600 1,023 NovaMed* 44,924 210 NuVasive* 11,243 479 Odyssey HealthCare (B)* 202,000 2,020 Omnicare (B) 34,666 883 Omnicell* 56,464 1,489 Omrix Biopharmaceuticals* 35,570 1,188 Onyx Pharmaceuticals (B)* 15,830 863 OraSure Technologies (B)* 129,265 1,225 Orthofix International* 14,732 860 OSI Pharmaceuticals (B)* 41,552 1,938 Owens & Minor (B) 72,783 2,858 - -------------------------------------------------------------------------------- 46 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Panacos Pharmaceuticals* 104,014 $ 214 Par Pharmaceutical (B)* 48,270 929 Parexel International* 27,295 1,208 Patterson* 38,161 1,228 PDL BioPharma (B)* 15,600 276 Pediatrix Medical Group* 23,860 1,543 Penwest Pharmaceuticals (B)* 216,100 1,316 Perrigo (B) 93,226 2,881 Pharmacopeia Drug Discovery* 80,329 365 PharMerica (B)* 105,053 1,547 Pozen (B)* 23,500 245 Profarma Distribuidora de Produtos Farmaceuticos (Brazil)* 93,300 1,919 Providence Service* 21,765 609 PSS World Medical (B)* 157,693 3,025 Psychiatric Solutions* 78,417 2,865 Qiagen* 123,011 2,592 Quidel* 9,600 181 Regeneron Pharmaceuticals (B)* 71,450 1,556 Res-Care* 29,922 682 Rigel Pharmaceuticals* 123,700 886 Salix Pharmaceuticals (B)* 34,700 394 Savient Pharmaceuticals* 4,761 67 Sciele Pharma (B)* 174,406 3,893 Sirona Dental Systems (B)* 40,304 1,091 Somanetics* 33,300 666 Spectranetics (B)* 70,463 1,069 STERIS 61,749 1,726 Sun Healthcare Group* 40,800 677 Symmetry Medical* 51,929 874 Tercica (B)* 82,600 548 Theravance* 16,015 386 TomoTherapy* 41,220 767 Trizetto Group* 43,600 673 United Therapeutics (B)* 44,338 4,437 Varian* 13,699 960 Ventana Medical Systems* 10,090 896 Viropharma (B)* 32,400 290 Vnus Medical Technologies* 38,069 536 WellCare Health Plans* 1,398 54 Wright Medical Group (B)* 73,100 1,972 Xenoport* 3,100 163 -------------- 229,984 -------------- INDUSTRIALS -- 13.6% ABM Industries 5,600 114 ABX Air* 22,245 99 ACCO Brands* 74,184 1,240 Accuride* 59,826 454 Actuant, Cl A (B) 58,154 1,842 Acuity Brands (B) 32,430 1,281 Administaff 11,133 364 Advisory Board* 47,813 3,108 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Aecom Technology* 48,600 $ 1,292 AGCO* 33,783 2,329 Alaska Air Group* 54,674 1,385 Albany International, Cl A 68,079 2,633 Allen-Vanguard* 114,500 979 Altra Holdings* 22,000 353 Amerco* 3,912 256 American Commercial Lines (B)* 137,146 2,385 American Ecology 5,381 120 American Woodmark (B) 43,670 846 Ampco-Pittsburgh 18,900 666 Amrep 1,300 43 AO Smith 79,300 2,806 Apogee Enterprises 127,824 2,840 Applied Industrial Technologies 28,200 852 Arkansas Best (B) 55,400 1,263 Ascent Solar Technologies (B)* 22,300 379 Astec Industries (B)* 11,000 413 ASV* 12,791 149 Atlas Air Worldwide Holdings* 1,100 58 Avis Budget Group* 50,817 764 Barnes Group (B) 37,650 1,166 BE Aerospace* 112,988 5,310 Beacon Roofing Supply* 60,300 555 Belden CDT (B) 48,941 2,254 Bowne (B) 65,590 1,185 Brady, Cl A (B) 35,137 1,407 Briggs & Stratton 79,915 1,822 Brink's 34,200 2,188 Bucyrus International, Cl A (B) 23,485 2,060 Celadon Group* 8,800 69 Cenveo* 5,620 116 Ceradyne (B)* 68,409 3,382 Chart Industries* 36,200 1,006 Chicago Bridge & Iron 76,707 4,077 CIRCOR International 39,178 1,700 Clarcor 39,525 1,407 Clean Harbors (B)* 52,426 2,817 Columbus McKinnon* 34,966 1,088 Commercial Vehicle Group* 55,900 745 COMSYS IT Partners* 44,589 595 Con-way 13,900 588 Consolidated Graphics* 11,734 607 Continental Airlines, Cl B* 10,837 305 Corrections of America* 51,104 1,559 CoStar Group (B)* 50,854 2,451 CRA International (B)* 39,024 1,805 Crane 61,055 2,744 Cubic (B) 16,405 648 Curtiss-Wright 32,686 1,763 Danaos 23,300 713 Deluxe 120,457 3,805 Diamond Management & Technology Consultants (B) 96,900 720 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 47 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Duff & Phelps* 43,643 $ 870 Dynamic Materials 57,700 3,662 DynCorp International, Cl A* 18,859 394 EDO 19,500 1,088 Electro Rent* 9,971 136 EMCOR Group* 78,601 2,094 Encore Wire 2,704 46 EnerSys* 3,277 76 EnPro Industries* 58,016 1,775 ESCO Technologies (B)* 33,504 1,239 Esterline Technologies* 22,906 1,196 Evergreen Solar (B)* 87,500 1,152 Federal Signal 47,729 549 First Advantage, Cl A* 17,000 309 First Consulting Group* 161,770 2,071 Flow International* 139,200 1,100 Force Protection (F) (G) (H)* 166,100 1,796 Force Protection (B)* 33,500 362 Forward Air 47,220 1,528 FTI Consulting* 33,972 1,936 Fuel Tech* 9,746 238 G&K Services 14,710 598 GATX 16,500 611 Genco Shipping & Trading (B) 14,500 918 GenCorp* 37,200 450 General Cable (B)* 46,590 3,465 Genesee & Wyoming, Cl A* 15,923 417 Genlyte Group (B)* 28,883 2,722 Geo Group* 134,275 3,419 GeoEye* 37,300 1,183 Goodman Global (B)* 42,659 1,009 GrafTech International (B)* 75,527 1,214 Great Lakes Dredge & Dock* 57,500 512 H&E Equipment Services* 189,130 3,266 Hardinge 5,325 84 Heartland Express (B) 81,275 1,181 Heico, Cl A 30,870 1,235 Heidrick & Struggles International (B)* 3,200 116 Hexcel (B)* 61,600 1,569 Horizon Lines, Cl A 61,045 1,215 Hubbell, Cl B 30,600 1,681 Hudson Highland Group* 92,503 824 Huron Consulting Group (B)* 20,890 1,531 ICF International* 17,700 458 ICT Group* 7,900 88 IDEX 16,408 586 IHS, Cl A* 41,487 2,910 II-VI (B)* 22,900 768 IKON Office Solutions (B) 157,689 1,992 Innerworkings (B)* 103,611 1,642 Innovative Solutions & Support* 1 -- Interface, Cl A 53,759 938 Ionatron* 37,800 131 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- JA Solar Holdings ADR* 48,743 $ 2,892 JetBlue Airways* 86,400 605 Kadant* 23,542 694 Kansas City Southern (B)* 50,166 1,727 Kaydon (B) 31,469 1,593 KBR* 35,800 1,426 Kenexa (B)* 49,600 961 Kforce* 116,751 1,267 Kirby* 26,627 1,280 Knight Transportation (B) 43,800 666 Knoll (B) 111,582 1,950 Korn/Ferry International* 38,185 658 Labor Ready* 50,400 758 Ladish* 5,026 222 Landstar System 26,005 1,034 LB Foster, Cl A* 7,543 346 LECG* 109,623 1,739 Lincoln Electric Holdings 25,400 1,772 LSI Industries 12,625 261 Lydall* 5,242 51 Marten Transport (B)* 12,700 139 Mcgrath Rentcorp 7,779 207 Medis Technologies* 4,000 51 Merrimac Industries* 16,900 155 Mesa Air Group* 278,268 1,052 Michael Baker* 25,791 901 Middleby (B)* 18,040 1,369 Milacron (B)* 19,814 57 Mine Safety Appliances 9,128 447 Moog, Cl A* 26,022 1,173 Mueller Industries 20,300 614 Multi-Color 4,350 104 NACCO Industries, Cl A 1,885 191 Navios Maritime Holdings* 14,230 208 Navistar International* 9,900 514 NCI Building Systems (B)* 58,200 1,998 Nuco2* 49,565 1,367 Old Dominion Freight Line* 34,675 781 Orbital Sciences (B)* 62,000 1,492 Orion Marine Group (F) (G) (H)* 139,600 1,989 Pacer International 40,300 554 Pall 63,100 2,414 PeopleSupport* 156,630 2,201 Perini* 112,864 6,003 Pinnacle Airlines (B)* 36,964 601 Power-One (B)* 180,431 843 PRG-Schultz International* 19,506 182 Quanta Services (B)* 93,064 2,548 RBC Bearings* 43,280 1,592 Regal-Beloit 13,700 645 Republic Airways Holdings (B)* 121,070 2,431 Resources Connection 57,980 1,196 RSC Holdings (B)* 233,800 2,871 Ryder System 54,300 2,354 - -------------------------------------------------------------------------------- 48 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Saia* 15,710 $ 205 Schawk 24,200 348 School Specialty (B)* 26,286 938 Simpson Manufacturing 13,627 363 Skywest 47,891 1,260 Spherion (B)* 173,208 1,348 Spirit Aerosystems Holdings, Cl A* 4,600 161 Standard Parking* 4,220 196 Standard Register 22,494 271 Steelcase, Cl A 10,600 160 Sunpower, Cl A* 4,138 515 Superior Essex* 27,546 668 TAL International Group 57,800 1,309 Taleo, Cl A* 96,447 2,723 TBS International, Cl A (B)* 14,600 637 Tecumseh Products, Cl A* 85,100 2,023 Teledyne Technologies (B)* 43,268 2,346 TeleTech Holdings* 38,100 789 Tetra Tech (B)* 67,647 1,402 Textainer Group ADR 128,700 2,104 Titan International 16,715 459 Tredegar 11,077 160 Triumph Group 14,800 1,203 UAP Holding 30,765 920 Ultrapetrol Bahamas* 44,100 766 United Rentals (B)* 22,100 514 United Stationers* 58,376 2,957 Universal Forest Products 16,500 472 URS* 31,726 1,824 Volt Information Sciences* 13,974 178 Wabtec 61,876 2,100 Walter Industries 40,350 1,400 Waste Connections* 83,062 2,644 Waste Industries USA 14,600 493 Watson Wyatt Worldwide, Cl A (B) 98,625 4,542 Watts Water Technologies, Cl A (B) 22,081 646 WESCO International* 21,468 869 YRC Worldwide (B)* 31,300 554 -------------- 251,933 -------------- INFORMATION TECHNOLOGY -- 20.7% ACI Worldwide* 12,600 288 Acme Packet (B)* 115,200 1,417 Actel* 50,700 556 ADC Telecommunications* 49,301 816 Advanced Analogic Technologies* 195,685 2,108 Advanced Energy Industries* 38,168 554 Advent Software (B)* 6,200 315 Akamai Technologies* 22,992 875 Alliance Semiconductor 95,200 149 AMIS Holdings (B)* 152,946 1,173 Amkor Technology (B)* 216,900 1,787 Anadigics (B)* 84,951 935 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Anixter International* 2,217 $ 143 Ansys* 25,519 992 Applied Micro Circuits (B)* 181,800 456 Ariba* 88,011 1,045 ARM Holdings ADR (B)* 172,400 1,419 Arris Group (B)* 237,332 2,475 Art Technology Group* 581,803 2,432 Aspen Technology (B)* 56,400 957 Asyst Technologies* 393,096 1,352 Atheros Communications (B)* 88,715 2,616 Atmel* 385,612 1,693 ATMI (B)* 88,171 2,653 Avanex (B)* 193,900 291 Avid Technology* 9,414 250 Avocent (B)* 148,021 3,686 Axcelis Technologies* 38,604 183 Axesstel* 431,541 117 Bankrate* 30,765 1,204 BearingPoint (B)* 183,600 670 Benchmark Electronics* 96,700 1,736 BigBand Networks (B)* 8,700 52 Black Box (B) 41,982 1,545 Blackboard* 5,841 228 BluePhoenix Solutions* 51,875 944 Brightpoint* 18,492 307 Broadridge Financial Solutions* 63,800 1,453 Brocade Communications Systems* 468,700 3,417 Brooks Automation* 36,900 496 C-COR* 18,745 230 Cabot Microelectronics* 4,602 172 CACI International, Cl A (B)* 83,605 3,795 Captaris* 13,246 54 Cavium Networks* 28,200 723 Ceragon Networks* 51,320 663 Checkpoint Systems* 61,165 1,453 China Digital TV ADR (B)* 67,400 2,108 Chordiant Software* 65,400 656 Ciber (B)* 144,100 983 Cirrus Logic (B)* 171,066 975 CNET Networks (B)* 104,100 789 Cogent (B)* 10,000 111 Cognex 52,000 1,054 Coherent (B)* 43,503 1,252 Cohu 8,583 134 CommScope (B)* 35,935 1,455 Commvault Systems* 73,000 1,626 Comtech Group (B)* 49,100 871 Comtech Telecommunications* 18,019 895 Comverge (B)* 13,738 432 Comverse Technology (B)* 106,100 1,719 Concur Technologies (B)* 101,425 3,810 Conexant Systems (B)* 255,700 284 Constant Contact (B)* 39,974 761 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 49 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CPI International* 68,171 $ 1,145 Credence Systems* 104,928 215 CSG Systems International (B)* 120,666 1,999 CTS (B) 139,700 1,477 Cybersource* 29,783 435 Cymer* 60,120 2,469 Cypress Semiconductor* 63,305 2,103 Daktronics (B) 67,064 1,565 Data Domain (B)* 53,900 1,390 DealerTrack Holdings* 95,791 4,075 DemandTec* 34,837 572 Digimarc* 45,000 423 Digital River* 2,787 108 Diodes (B)* 63,366 1,864 DivX (B)* 68,605 1,161 Double-Take Software* 57,900 1,436 DSP Group* 155,800 2,108 DTS* 39,385 975 Dycom Industries* 48,382 1,361 Earthlink (B)* 240,500 1,633 Echelon (B)* 26,013 437 EFJ* 134,800 395 Electronic Arts* 26,767 1,504 Electronics for Imaging (B)* 136,593 3,133 Elixir Gaming Technologies* 147,535 581 Emergis (Canada)* 209,800 1,719 EMS Technologies* 3,239 94 Emulex (B)* 145,729 2,441 Entegris (B)* 142,000 1,230 Epicor Software (B)* 42,100 456 EPIQ Systems* 41,691 726 Equinix (B)* 41,966 4,369 Euronet Worldwide (B)* 104,152 3,412 Factset Research Systems 18,305 1,147 Fairchild Semiconductor International* 55,861 886 FalconStor Software (B)* 91,080 1,103 Flir Systems* 15,975 1,098 Foundry Networks* 79,400 1,400 Genesis Microchip* 44,490 224 Gevity HR (B) 64,300 273 Harmonic* 125,400 1,300 Harris Stratex Networks, Cl A* 104,245 1,795 Heartland Payment Systems 16,072 519 Hewitt Associates, Cl A* 19,156 718 Hittite Microwave* 28,475 1,230 Hutchinson Technology* 66,600 1,752 i2 Technologies* 8,573 139 ICX Technologies (B)* 37,600 349 Ikanos Communications (B)* 84,300 500 Imation 120,500 2,418 Immersion (B)* 35,148 461 Infinera (B)* 25,541 557 Informatica (B)* 57,900 993 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Information Services Group* 119,470 $ 804 Insight Enterprises* 45,653 904 InterDigital (B)* 63,900 1,150 Intermec* 9,351 201 Internap Network Services* 28,900 288 Internet Capital Group* 43,102 481 Interwoven* 12,200 150 Intevac (B)* 58,000 911 IPG Photonics* 113,805 2,316 Itron* 25,328 1,964 Jack Henry & Associates 3,500 94 JDA Software Group* 156,680 3,281 JDS Uniphase (B)* 76,000 1,023 Juniper Networks* 39,838 1,184 Jupitermedias (B)* 218,500 937 Kemet* 114,100 707 Keynote Systems* 73,000 1,004 Kulicke & Soffa Industries* 27,197 193 Lawson Software (B)* 368,948 3,586 LeCroy (B)* 71,700 623 Liquidity Services* 75,525 902 Littelfuse (B)* 43,069 1,436 LoJack* 39,900 699 LTX* 330,804 794 Macrovision* 4,664 116 Magma Design Automation* 14,300 191 Manhattan Associates* 64,205 1,742 Mantech International, Cl A* 22,067 854 Marchex, Cl B (B)* 116,800 1,438 Mastec* 42,576 430 Mattson Technology* 7,000 58 MAXIMUS 8,514 332 McAfee* 15,300 596 Mentor Graphics (B)* 255,456 2,782 Mercadolibre (B)* 15,776 669 Mercury Computer Systems* 56,600 830 Methode Electronics (B) 211,522 2,549 Micrel 43,332 387 Micros Systems* 20,185 1,456 Microsemi (B)* 300,085 6,866 MicroStrategy, Cl A* 2,400 242 Microtune* 24,000 125 MIPS Technologies (B)* 316,400 1,797 MKS Instruments (B)* 30,000 545 Monolithic Power Systems* 84,568 1,614 MPS Group (B)* 127,200 1,412 MTS Systems 13,699 562 Navisite* 121,000 1,127 Net 1 UEPS Technologies (B)* 32,460 1,005 Netezza (B)* 82,600 1,094 Netgear* 38,185 1,294 Netlogic Microsystems (B)* 39,174 1,146 Neutral Tandem* 6,940 127 Novatel Wireless (B)* 224,975 3,496 - -------------------------------------------------------------------------------- 50 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Nuance Communications (B)* 112,618 $ 2,273 O2Micro International ADR* 71,050 1,010 Omniture (B)* 97,190 2,761 Omnivision Technologies* 31,600 588 ON Semiconductor (B)* 363,757 3,343 Openwave Systems* 18,981 52 Orbotech* 125,600 1,930 OSI Systems* 48,900 1,212 Packeteer* 27,900 189 Palm (B)* 138,600 966 Parametric Technology (B)* 169,815 2,836 Park Electrochemical 49,200 1,449 Parkervision (B)* 128,500 1,263 PC Connection (B)* 28,700 367 PDF Solutions* 11,500 91 Perfect World ADR* 56,300 1,364 Perficient* 98,756 1,656 Perot Systems, Cl A (B)* 106,515 1,401 Photon Dynamics* 5,926 53 Photronics* 72,862 750 Pixelworks* 84,970 74 Plantronics (B) 34,767 933 Plexus* 69,870 2,079 PLX Technology* 201,029 1,978 PMC - Sierra (B)* 298,300 2,094 Polycom (B)* 304,300 7,385 Power Integrations* 54,984 1,654 Powerwave Technologies (B)* 254,757 1,055 Presstek (B)* 71,780 429 Quality Systems (B) 12,322 365 Quantum* 472,300 1,497 Quest Software* 16,023 259 Rackable Systems (B)* 193,200 2,058 Radisys (B)* 25,600 398 RADWARE* 102,420 1,375 RealNetworks* 71,600 442 Red Hat (B)* 403,400 8,076 RF Micro Devices (B)* 1,045,305 6,042 Richardson Electronics 36,191 236 RightNow Technologies (B)* 57,050 1,035 Riverbed Technology* 86,000 2,432 Rofin-Sinar Technologies* 940 86 Rogers* 7,136 314 Rubicon Technology* 42,423 785 Rudolph Technologies* 152,700 1,825 S1* 26,157 194 SAVVIS* 46,640 1,494 Seachange International* 311,400 2,348 Seagate Technology (B) 17,352 448 Secure Computing (B)* 154,536 1,402 ShoreTel* 92,500 1,436 SI International* 50,900 1,321 Sigma Designs (B)* 21,000 1,365 Silicon Image* 116,700 548 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Silicon Motion Technology ADR* 67,815 $ 1,281 Sina* 29,525 1,420 Sirf Technology Holdings (B)* 128,989 3,107 SkillSoft ADR* 64,800 628 Skyworks Solutions (B)* 985,558 8,949 Solera Holdings* 52,075 1,198 SPSS* 28,695 1,037 SRA International, Cl A (B)* 56,829 1,554 Standard Microsystems (B)* 45,971 1,621 Stratasys (B)* 47,431 1,185 Sun Microsystems* 40,089 833 Sybase (B)* 195,101 5,002 Symmetricom* 15,122 65 Synaptics (B)* 37,370 2,076 Synchronoss Technologies (B)* 69,471 2,287 SYNNEX* 45,100 932 Synopsys* 37,907 933 Tech Data* 25,800 970 Technitrol* 115,261 3,086 TechTarget* 34,406 470 Tekelec (B)* 151,214 1,860 Terremark Worldwide* 175,948 987 Tessco Technologies* 3,497 57 Tessera Technologies* 14,275 551 THQ* 183,406 4,484 TIBCO Software (B)* 246,200 1,928 TNS 38,510 605 Trident Microsystems* 144,200 906 Trina Solar ADR (B)* 50,900 2,181 Triquint Semiconductor* 375,200 2,225 TTM Technologies (B)* 154,000 1,862 Tyler Technologies* 13,904 209 Ultimate Software Group* 29,880 976 Ultra Clean Holdings* 52,739 758 Ultratech (B)* 137,500 1,647 United Online (B) 239,936 3,609 Universal Display (B)* 95,111 1,575 Utstarcom (B)* 144,500 419 Valueclick* 95,389 2,255 Varian Semiconductor Equipment Associates* 15,450 641 Vasco Data Security International (B)* 84,337 1,893 Veeco Instruments* 49,876 837 VeriFone Holdings (B)* 74,995 3,602 Verigy* 48,575 1,230 Verint Systems* 74,700 1,289 VeriSign* 41,453 1,695 Viasat* 35,155 1,172 Vignette (B)* 48,957 753 Virtusa* 60,142 1,063 VistaPrint (B)* 56,331 2,501 Visual Sciences* 8,000 127 Volterra Semiconductor* 7,894 98 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 51 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Wavecom ADR (B)* 32,337 $ 627 Websense* 4,615 75 WidePoint* 281,700 287 Wind River Systems (B)* 402,700 4,112 Wright Express* 80,636 3,060 Xyratex* 133,453 1,967 Zoran* 141,129 3,079 Zygo* 112,241 1,267 -------------- 383,296 -------------- MATERIALS -- 4.7% ADA-ES (B)* 24,500 237 AK Steel Holding* 36,929 1,646 AM Castle 51,516 1,293 Apex Silver Mines* 44,806 764 Aptargroup 11,188 472 Arch Chemicals 13,118 540 Ashland 34,759 1,712 Bemis (B) 41,229 1,119 Buckeye Technologies (B)* 145,395 2,076 Cabot 13,439 463 Carpenter Technology 25,500 1,924 Century Aluminum* 9,534 547 CF Industries Holdings 32,725 2,977 Chemtura 96,400 723 Cleveland-Cliffs (B) 27,988 2,524 Constar International (B)* 59,598 171 Crown Holdings* 39,400 1,011 Cytec Industries 42,100 2,582 Esmark* 94,300 1,829 Ferro 16,769 355 Flotek Industries* 15,860 585 FMC 11,966 655 Frontera Copper (Canada)* 171,000 1,038 Greif, Cl A 41,838 2,471 Grupo Simec SAB de CV ADR (B)* 160,600 1,537 H.B. Fuller (B) 83,660 2,116 Haynes International* 25,500 2,155 Hercules 230,607 4,476 Horsehead Holding (B)* 90,500 1,505 Innospec 7,018 123 Katanga Mining (Canada)* 133,800 1,985 Koppers Holdings 33,800 1,299 Louisiana-Pacific 64,000 984 Metal Management 20,530 945 Myers Industries 43,121 861 Neenah Paper 39,892 1,204 NewMarket 20,375 1,093 Olin 67,947 1,423 OM Group* 45,614 2,568 Omnova Solutions* 80,600 415 Pactiv* 48,421 1,230 PolyOne* 45,858 288 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Quaker Chemical 3,600 $ -- Quanex (B) 90,073 4,507 Rock-Tenn, Cl A 59,591 1,572 Rockwood Holdings* 18,121 610 RTI International Metals* 1,060 78 Schnitzer Steel Industries, Cl A 24,687 1,541 Schweitzer-Mauduit International 55,753 1,489 Sensient Technologies (B) 107,400 2,972 Sherritt International (Canada) 109,500 1,532 Silgan Holdings 114,012 6,114 Spartech 28,337 387 Steel Dynamics 78,100 3,929 Symyx Technologies* 12,775 98 Terra Industries (B)* 54,888 2,074 Texas Industries (B) 46,015 3,193 Wellman (B) 141,300 54 Worthington Industries (B) 35,900 761 WR Grace* 21,815 589 Zep* 8,065 106 Zoltek* 5,400 230 -------------- 87,757 -------------- TELECOMMUNICATION SERVICES -- 2.0% Alaska Communications Systems Group 104,528 1,568 Atlantic Tele-Network 16,900 645 Cbeyond (B)* 53,609 2,218 Centennial Communications* 123,437 1,099 Cincinnati Bell* 380,412 1,811 Clearwire, Cl A (B)* 144,700 2,253 Cogent Communications Group (B)* 70,879 1,473 Consolidated Communications Holdings 17,986 289 Fairpoint Communications 130,900 1,953 FiberTower* 20,576 47 Global Crossing* 39,329 721 IDT* 26,500 205 IDT, Cl B (B)* 54,797 444 Iowa Telecommunications Services 21,979 375 NeuStar, Cl A (B)* 87,765 2,788 NTELOS Holdings 120,695 3,202 Orckit Communications* 61,700 432 Premiere Global Services* 191,000 2,632 Rural Cellular, Cl A* 14,244 628 SBA Communications, Cl A (B)* 174,855 6,547 Syniverse Holdings (B)* 105,134 1,642 Time Warner Telecom, Cl A* 124,186 2,785 USA Mobility 54,360 717 Vonage Holdings* 138,074 291 -------------- 36,765 -------------- - -------------------------------------------------------------------------------- 52 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- UTILITIES -- 3.2% AGL Resources 35,973 $ 1,334 Allete 82,567 3,382 Atmos Energy 37,723 988 Black Hills 42,345 1,764 Centerpoint Energy (B) 96,700 1,726 Cia de Saneamento de Minas Gerais-COPASA (Brazil)* 77,000 1,368 Cleco 53,001 1,481 CMS Energy (B) 90,200 1,572 El Paso Electric* 94,100 2,419 Empire District Electric (B) 46,238 1,065 Energen 11,784 751 Great Plains Energy 15,600 463 Hawaiian Electric Industries 15,400 357 Idacorp (B) 43,122 1,516 Integrys Energy Group 28,401 1,449 ITC Holdings 39,250 2,003 Laclede Group 36,880 1,269 New Jersey Resources 22,327 1,126 Nicor (B) 57,602 2,427 Northwest Natural Gas 33,299 1,597 NorthWestern 33,684 938 Oneok 30,200 1,404 Ormat Technologies (B) 67,471 3,407 PNM Resources (B) 129,580 2,874 PNOC Energy Development (Philippines)* 11,034,000 1,780 Portland General Electric 165,289 4,425 Reliant Energy* 49,703 1,294 SJW 3,900 131 South Jersey Industries 2,528 93 Southern Union 58,100 1,734 Southwest Gas 37,917 1,097 Synthesis Energy Systems* 49,240 542 UGI 49,600 1,312 UIL Holdings 47,900 1,716 Unisource Energy 17,058 528 Vectren 54,171 1,591 Westar Energy (B) 84,371 2,186 WGL Holdings (B) 26,293 869 Wisconsin Energy 9,016 431 -------------- 58,409 -------------- Total Common Stock (Cost $1,716,436) ($ Thousands) 1,792,573 -------------- - -------------------------------------------------------------------------------- Face Amount($ Thousands)/ Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CORPORATE OBLIGATION (C) (E) -- 0.5% FINANCIALS -- 0.5% SLM MTN 4.660%, 12/17/07 $ 8,944 $ 8,944 -------------- Total Corporate Obligation (Cost $8,944) ($ Thousands) 8,944 -------------- PREFERRED STOCK -- 0.0% FINANCIALS -- 0.0% Thornburg Mortgage 16,594 407 -------------- Total Preferred Stock (Cost $415) ($ Thousands) 407 -------------- CONVERTIBLE BOND -- 0.1% Nova BioSource CV to 273.2240 10.000%, 09/30/12 $ 1,698 1,698 -------------- Total Convertible Bond (Cost $1,698) ($ Thousands) 1,698 -------------- EXCHANGE TRADED FUND -- 0.0% iShares Russell 2000 Index Fund (B)* 6,166 472 -------------- Total Exchange Traded Fund (Cost $399) ($ Thousands) 472 -------------- Number of Warrants ------------- WARRANTS -- 0.0% Rentech, Expires (G) (H)* 16,100 12 04/25/12 (F) Titanium Asset Management, Expires 06/21/11* 122,200 130 Victory Acquisition, Expires 04/24/11* 152,834 267 Washington Mutual Expires 12/26/50* 220,361 38 -------------- Total Warrants (Cost $225) ($ Thousands) 447 -------------- Number of Rights ------------- RIGHTS -- 0.0% Esmark, Expires 11/27/07* 94,300 23 -------------- Total Rights (Cost $--) ($ Thousands) 23 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 53 SCHEDULE OF INVESTMENTS (Unaudited) Small Cap Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount ($ Thousands)/ Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CASH EQUIVALENTS -- 30.9% First Union Cash Management Program, 4.370%** 1,127,271 $ 1,127 SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 75,051,447 75,051 SEI Liquidity Fund L.P., 5.110%++** (C) 496,335,987 496,336 -------------- Total Cash Equivalents (Cost $572,514) ($ Thousands) 572,514 -------------- U.S. TREASURY OBLIGATION (A) (D) -- 0.2% U.S. Treasury Bill 3.198%, 02/21/08 $ 2,355 2,339 -------------- Total U.S. Treasury Obligation (Cost $2,338) ($ Thousands) 2,339 -------------- Total Investments -- 128.5% (Cost $2,302,969) ($ Thousands) $ 2,379,417 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED TYPE OF NUMBER OF EXPIRATION APPRECIATION CONTRACT CONTRACTS DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- Russell 2000 Index E-Mini 231 Dec-2007 $ 594 ============== Percentages are based on Net Assets of $1,851,969 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007. The total value of securities on loan at November 30, 2007 was $484,828 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan. The total value of such securities as of November 30, 2007 was $505,280 ($ Thousands). (D) The rate reported is the effective yield at time of purchase. (E) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. (F) Securities considered illiquid. The total value of such securities as of November 30, 2007 was $8,738 ($ Thousands) and represented 0.47% of Net Assets. (G) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total value of such securities as of November 30, 2007 was $8,738 ($ Thousands) and represented 0.47% of Net Assets. (H) This security considered restricted. The total value of such securities as of November 30, 2007 was $8,738 ($ Thousands) and represented 0.47% of Net Assets. ADR -- American Depositary Receipt Cl -- Class CV -- Convertible Security L.P. -- Limited Partnership MTN -- Medium Term Note PIPE -- Private Investment in Public Entity Ser -- Series Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 54 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Short-Term Investments 21.0% Financials 16.1% Information Technology 14.9% Industrials 11.3% Consumer Discretionary 10.4% Health Care 8.7% Energy 4.8% Materials 4.2% Utilities 3.5% Consumer Staples 3.0% Telecommunication Services 1.8% U.S. Treasury Obligations 0.1% Exchange Traded Funds 0.1% Convertible Bonds 0.1% Warrants 0.0% Rights 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 96.4% CONSUMER DISCRETIONARY -- 12.8% Abercrombie & Fitch, Cl A 10,453 $ 858 Aftermarket Technology* 12,120 338 American Axle & Manufacturing Holdings (B) 58,010 1,341 American Eagle Outfitters 13,300 304 American Greetings, Cl A 45,572 1,060 Amerigon (B)* 74,070 1,354 AnnTaylor Stores* 23,764 724 Arctic Cat 68,000 726 Audible (B)* 205,186 2,366 Autoliv 36,100 2,108 Autonation (B)* 26,050 430 Bally Technologies* 2,807 117 Bebe Stores 25,876 349 Belo, Cl A 163,070 2,700 Big Lots (B)* 122,132 2,280 Black & Decker (B) 45,270 3,742 Blockbuster, Cl A* 250,268 893 Blue Nile (B)* 18,700 1,380 Bob Evans Farms 10,320 318 Books-A-Million 2,703 33 Borders Group (B) 31,800 398 Brinker International 100,023 2,304 Brown Shoe 86,336 1,465 Brunswick 37,965 774 Cablevision Systems, Cl A* 4,632 125 California Pizza Kitchen* 12,100 193 Casual Male Retail Group (B)* 258,000 1,600 Cato, Cl A 58,500 881 CBRL Group (B) 90,962 3,044 CEC Entertainment (B)* 36,228 1,033 Century Casinos* 142,205 883 Charming Shoppes* 355,200 1,964 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cheesecake Factory (B)* 15,000 $ 349 Chico's FAS* 21,900 248 Childrens Place Retail Stores* 107,200 3,051 Chipotle Mexican Grill, Cl A (B)* 21,500 2,863 Cinemark Holdings (B)* 71,763 1,198 Coach* 62,500 2,321 Columbia Sportswear (B) 5,600 269 Conn's* 42,800 775 Cooper Tire & Rubber (B) 170,302 2,619 Corinthian Colleges* 88,116 1,539 Courier 11,369 374 CROCS (B)* 242,525 9,466 CSK Auto* 22,158 216 CSS Industries 18,400 728 Ctrip.com International ADR* 30,781 1,850 Darden Restaurants 47,300 1,882 Denny's* 124,810 512 Dick's Sporting Goods (B)* 45,038 1,408 Dillard's, Cl A (B) 40,000 816 Dolan Media* 74,350 1,970 Dollar Tree Stores* 111,653 3,200 Dover Downs Gaming & Entertainment 9,600 106 DreamWorks Animation SKG, Cl A* 75,102 1,975 Drew Industries (B)* 29,800 814 DSW, Cl A (B)* 97,000 2,182 Dufry South America (United Kingdom)* 46,100 1,342 E.W. Scripps, Cl A 21,445 932 Eastman Kodak 22,982 540 Eddie Bauer Holdings (B)* 216,700 1,450 Entercom Communications (B) 66,397 1,082 Ethan Allen Interiors 16,149 461 Expedia* 8,600 280 Family Dollar Stores 134,153 3,159 Focus Media Holding ADR (B)* 56,937 3,214 Foot Locker 67,833 885 Ford Motor* 5,057 38 Furniture Brands International (B) 48,500 491 G-III Apparel Group* 24,000 345 GameStop, Cl A* 10,100 580 Genius Products* 509,680 953 Getty Images* 12,585 367 Gildan Activewear* 33,000 1,259 Global Sources (B)* 33,718 1,026 Goodyear Tire & Rubber* 112,121 3,223 Group 1 Automotive (B) 56,500 1,519 GSI Commerce (B)* 120,003 3,134 Guess?* 19,700 925 Gymboree* 93,630 3,124 Handleman (B) 21,700 48 Harley-Davidson 18,375 882 Harman International Industries 4,296 316 Harris Interactive* 302,135 1,266 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 55 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Hasbro (B) 289,598 $ 8,042 hhgregg* 90,825 1,276 Hibbett Sports (B)* 102,320 2,192 Home Solutions of America* 6,100 6 Hooker Furniture* 62,800 1,056 IAC/InterActive* 48,675 1,355 IHOP 15,611 792 Interactive Data 23,600 737 ITT Educational Services* 15,001 1,697 J Crew Group (B)* 25,400 1,220 Jack in the Box* 14,000 419 Jackson Hewitt Tax Service 78,686 2,538 Jakks Pacific* 11,800 298 Jarden (B)* 158,765 4,185 Jo-Ann Stores* 48,189 793 Jones Apparel Group 115,321 2,150 Jos. A. Bank Clothiers (B)* 34,909 904 Journal Communications, Cl A 22,332 203 KB Home (B) 18,900 395 Lear* 72,500 2,134 Leggett & Platt 52,102 1,072 Life Time Fitness (B)* 92,510 5,025 Lin TV, Cl A* 12,900 145 LKQ (B)* 153,000 6,076 Lululemon Athletica (B)* 22,600 829 Lumber Liquidators (B)* 24,000 216 Martha Stewart Living Omnimedia, Cl A (B)* 141,000 1,431 Marvel Entertainment* 54,620 1,513 Men's Wearhouse 7,665 265 Meredith 28,400 1,563 Mohawk Industries* 7,877 634 Monarch Casino & Resort* 14,100 361 Morgans Hotel Group (B)* 107,900 1,995 Morningstar (B)* 32,877 2,675 Movado Group 18,500 512 National CineMedia* 50,645 1,402 Nautilus (B) 51,300 295 NetFlix* 11,800 273 New Oriental Education & Technology Group ADR* 4,100 328 Newell Rubbermaid 37,080 993 NexCen Brands* 15,925 72 Nexstar Broadcasting Group, Cl A* 12,600 114 Nutri/System (B)* 62,000 1,559 NVR (B)* 3,776 1,858 O'Charleys 90,007 1,342 Orbitz Worldwide* 84,300 674 Orient-Express Hotels, Cl A 63,200 3,913 Pacific Sunwear of California* 95,642 1,567 Penn National Gaming* 60,433 3,599 Perry Ellis International* 42,592 687 PetSmart (B) 144,859 4,126 Phillips-Van Heusen 42,700 1,811 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Pinnacle Entertainment* 59,612 $ 1,636 Polaris Industries (B) 35,500 1,617 priceline.com (B)* 81,298 9,252 Quiksilver (B)* 540,200 5,726 R.H. Donnelley (B)* 51,807 2,301 RadioShack (B) 136,804 2,531 RC2* 14,300 416 Regal Entertainment Group, Cl A (B) 94,400 1,868 Regis (B) 97,938 2,878 Rent-A-Center* 100,570 1,424 Ruby Tuesday (B) 79,800 1,046 Ryland Group (B) 12,700 292 Saks (B) 162,464 3,347 Sally Beauty Holdings* 24,850 226 Sauer-Danfoss 16,684 405 Scholastic* 21,237 748 Scientific Games, Cl A* 128,100 4,149 Sealy 17,225 225 Sinclair Broadcast Group, Cl A 33,960 351 Sirius Satellite Radio* 48,869 187 Smith & Wesson Holding* 3,500 35 Sonic Automotive, Cl A (B) 33,900 783 Sotheby's Holdings 21,509 806 Spartan Motors (B) 139,500 1,392 Standard Motor Products 18,797 139 Standard-Pacific (B) 172,554 597 Starwood Hotels & Resorts Worldwide 98,400 5,282 Stoneridge* 25,300 210 Strayer Education 1,200 217 Sun-Times Media Group, Cl A 14,525 15 Talbots (B) 185,300 2,874 Tecnisa (Brazil)* 278,400 1,880 Tempur-Pedic International (B) 12,400 368 Thor Industries 48,245 1,701 Thunderbird Resorts* 148,600 1,337 Tiffany 52,100 2,419 Timberland, Cl A (B)* 126,400 2,058 Town Sports International Holdings* 14,100 142 TravelCenters of America LLC* 5,180 78 Triarc, Cl B 19,700 166 True Religion Apparel (B)* 101,300 1,765 TRW Automotive Holdings* 60,944 1,368 Tupperware Brands 98,200 3,425 Ulta Salon Cosmetics & Fragrance* 7,080 182 Under Armour, Cl A (B)* 75,125 3,732 Urban Outfitters (B)* 199,800 5,235 Valuevision Media, Cl A* 122,970 809 Virgin Media 1,300 25 Visteon* 34,350 151 Volcom (B)* 80,635 2,175 Warnaco Group* 7,380 272 Weight Watchers International 24,250 1,158 West Marine* 20,629 182 Whirlpool (B) 21,994 1,781 - -------------------------------------------------------------------------------- 56 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Williams-Sonoma (B) 33,500 $ 975 WMS Industries* 59,800 1,997 Wynn Resorts (B)* 17,400 2,209 XM Satellite Radio Holdings, Cl A* 32,350 505 Zumiez (B)* 145,765 4,052 -------------- 290,096 -------------- CONSUMER STAPLES -- 3.7% Alliance One International* 175,608 725 American Oriental Bioengineering (B)* 67,000 784 Andersons 3,777 160 Asiatic Development (Malaysia)* 946,300 2,081 Avon Products 27,969 1,148 Bare Escentuals (B)* 32,000 674 BJ's Wholesale Club* 197,549 7,398 Boston Beer, Cl A* 4,357 145 Bunge 3,697 415 Casey's General Stores 14,929 433 Central Garden and Pet* 38,684 208 Central Garden and Pet, Cl A* 44,518 234 Chiquita Brands International* 19,385 372 Clorox 16,996 1,103 Corn Products International 64,705 2,545 Cosan SA Industria e Comercio (Brazil)* 157,000 1,854 Darling International* 197,544 2,025 Dean Foods 112,805 2,813 Del Monte Foods 193,250 1,701 Elizabeth Arden* 41,684 1,002 Energizer Holdings (B)* 13,900 1,579 Fresh Del Monte Produce 40,587 1,255 Hain Celestial Group (B)* 116,911 3,867 Hansen Natural* 11,800 512 Herbalife (B) 44,094 1,846 Hershey 24,636 983 Imperial Sugar 1,126 26 Inter Parfums 66,000 1,206 JM Smucker 34,167 1,679 Lance 78,700 1,632 Loews - Carolina 24,197 2,152 Longs Drug Stores 69,435 3,675 McCormick (B) 131,880 5,039 Molson Coors Brewing, Cl B 48,346 2,603 Nash Finch (B) 87,030 3,106 NBTY* 97,339 2,908 Pantry* 23,879 687 Pepsi Bottling Group 85,910 3,666 PepsiAmericas 51,200 1,733 Performance Food Group* 16,876 467 Pilgrim's Pride 24,400 636 Prestige Brands Holdings* 8,997 75 Ralcorp Holdings* 14,080 864 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Revlon, Cl A* 161,450 $ 181 Ruddick 91,700 3,282 Seaboard 420 634 Smithfield Foods (B)* 41,717 1,254 Supervalu 53,600 2,244 TreeHouse Foods* 58,075 1,369 Tyson Foods, Cl A 39,400 587 Universal 27,249 1,463 USANA Health Sciences (B)* 2,900 121 UST 19,980 1,157 Whole Foods Market (B) 8,800 379 -------------- 82,687 -------------- ENERGY -- 5.9% Alon USA Energy 12,281 342 Approach Resources* 49,900 644 Arch Coal 2,260 86 Arena Resources* 3,942 148 Arlington Tankers (B) 91,600 1,966 Atlas America 12,854 730 ATP Oil & Gas (B)* 71,400 3,183 BA Energy PIPE (Canada) (F) (G) (H)* 80,500 564 BA Energy, Deal #3 PIPE (Canada) (F) (G) (H)* 26,500 186 Basic Energy Services (B)* 94,800 1,849 Berry Petroleum, Cl A 19,050 788 Bois d'Arc Energy* 48,600 953 BPZ Energy PIPE (F) (G) (H)* 185,500 2,115 BPZ Resources* 17,500 199 Bronco Drilling* 15,464 222 Cameron International* 62,741 5,849 Carrizo Oil & Gas* 50,772 2,460 Compagnie Generale de Geophysique-Veritas ADR (B)* 63,600 3,819 Complete Production Services (B)* 85,900 1,522 Comstock Resources* 33,100 1,109 Consol Energy 702 42 Continental Resources* 38,800 924 Crosstex Energy 9,125 328 CVR Energy* 80,600 1,775 Delek US Holdings 54,900 1,012 Denbury Resources* 17,900 954 Dresser-Rand Group* 29,030 1,033 Dril-Quip (B)* 27,355 1,543 Encore Acquisition (B)* 30,900 1,006 Energy Partners* 78,750 975 Exterran Holdings* 48,394 3,873 FMC Technologies* 50,663 2,816 Foundation Coal Holdings 56,200 2,554 Frontier Oil 57,700 2,550 Global Industries* 27,406 608 GMX Resources* 5,500 176 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 57 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Grant Prideco* 142,800 $ 6,869 Grey Wolf (B)* 143,000 726 Helix Energy Solutions Group (B)* 89,700 3,641 Helmerich & Payne 50,070 1,730 Hercules Offshore* 87,700 2,193 Holly 20,100 974 Hugoton Royalty Trust* 19,425 447 Infinity Bio-Energy* 395,781 1,912 Kinder Morgan Management LLC* 10,700 536 Massey Energy 15,278 519 Matrix Service* 58,924 1,537 McMoRan Exploration* 10,600 125 Meridian Resource* 54,426 95 Murphy Oil 14,171 1,013 Nabors Industries* 27,071 728 NATCO Group, Cl A* 8,000 380 Newfield Exploration* 59,751 2,979 Oceaneering International* 37,225 2,375 Oilsands Quest (B)* 306,800 1,381 OPTI (Canada)* 121,600 2,165 Overseas Shipholding Group (B) 27,100 1,940 Parallel Petroleum* 79,104 1,515 Patterson-UTI Energy 110,000 2,073 PetroHawk Energy (B)* 262,333 4,276 Petroleum Development* 10,800 547 Pioneer Natural Resources 21,832 973 Plains Exploration & Production* 10,000 504 Quicksilver Resources* 3,600 182 Range Resources 39,155 1,593 Rentech (B)* 991,648 2,063 Rosetta Resources (B)* 37,485 686 SandRidge Energy (B)* 3,000 95 SEACOR Holdings* 20,700 1,875 Southwestern Energy* 67,374 3,353 StealthGas 96,900 1,580 Stone Energy (B)* 35,800 1,618 Sunoco (B) 36,200 2,429 Superior Energy Services* 75,134 2,622 Superior Well Services (B)* 91,000 1,764 Swift Energy* 88,367 3,580 Synenco Energy (Canada) (F) (G) (H)* 12,051 90 Synenco Energy, Cl A (Canada)* 227,100 1,693 Tesoro 92,536 4,551 Tetra Technologies* 19,425 307 Tidewater 9,841 481 Transmontaigne Partners LP* 3,100 96 Union Drilling* 7,600 97 Unit* 42,275 1,891 Uranium One (Canada)* 101,086 938 US BioEnergy (B)* 56,400 512 USEC* 28,196 231 Vaalco Energy* 11,000 48 W&T Offshore 38,675 1,021 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- W-H Energy Services* 11,057 $ 558 Western Refining 18,700 540 Williams 15,325 532 World Fuel Services 48,780 1,543 -------------- 133,625 -------------- FINANCIALS -- 19.3% Acadia Realty Trust+ 59,700 1,575 Advance America Cash Advance Centers 121,568 1,109 Advanta, Cl B (B) 65,323 654 Affiliated Managers Group (B)* 98,961 12,296 Alesco Financial+* 70,000 260 Alexandria Real Estate Equities+ (B) 44,410 4,362 AllianceBernstein Holding LP 2,129 174 AMB Property+ (B) 54,100 3,309 AmCOMP* 181,300 1,793 Amcore Financial 70,182 1,649 American Equity Investment Life Holding 42,133 380 American Financial Group 218,456 6,383 American Financial Realty Trust+ 284,800 2,298 American Home Mortgage Investment+ (B) 24,600 1 American Physicians Capital 8,100 340 AmeriCredit (B)* 53,300 611 Amerisafe* 63,250 965 Amtrust Financial Services 21,573 274 Anchor Bancorp Wisconsin 19,800 503 Annaly Capital Management+ 252,402 4,344 Anthracite Capital+ (B) 102,052 780 AON 54,800 2,738 Arbor Realty Trust+ 12,204 209 Arch Capital Group* 42,452 2,962 Ashford Hospitality Trust+ 165,600 1,282 Aspen Insurance Holdings (B) 94,500 2,722 Associated Banc (B) 99,501 2,707 Assurant (B) 37,745 2,470 Assured Guaranty 45,777 1,033 Astoria Financial 30,300 759 AvalonBay Communities+ (B) 49,200 4,892 Axis Capital Holdings 37,600 1,434 BancFirst 2,700 126 Banco Latinoamericano de Exportaciones* 80,200 1,432 Bancorpsouth 23,101 565 Bank Mutual 57,361 580 Bank of Hawaii 39,300 2,046 Bank of the Ozarks (B) 5,300 154 Bankunited Financial, Cl A (B) 247,951 1,979 BlackRock 6,767 1,342 Blackstone Group LP (B)* 164,600 3,621 BOK Financial 12,707 696 - -------------------------------------------------------------------------------- 58 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Boston Properties+ (B) 55,800 $ 5,492 Brandywine Realty Trust+ 95,700 1,962 Brasil Brokers Participacoes* 2,800 1,812 Calamos Asset Management, Cl A 62,684 1,856 Camden Property Trust+ (B) 17,300 910 Canaccord Capital (Canada)* 91,900 1,459 CapitalSource+ 163,940 2,748 Capstead Mortgage+ 87,800 1,071 Cardinal Financial 40,355 387 Cash America International 83,748 3,013 CBL & Associates Properties+ 30,756 888 Center Financial 5,500 68 Chemical Financial (B) 29,400 738 Chimera Investment* 81,308 1,261 CIT Group 33,100 880 City Bank 8,826 184 City Holding 6,500 234 CME Group 3,042 2,003 CNA Surety* 6,000 124 Colonial BancGroup 140,977 2,244 Commerce Group 36,000 1,294 Community Bancorp* 6,258 113 Community Bank System 68,400 1,380 Companhia Brasileira de Desenvolvimento Imobiliari Turistico (Brazil)* 3,600 1,648 Corporate Office Properties Trust+ 129,100 4,663 Corus Bankshares 71,395 678 Cullen/Frost Bankers 59,900 3,151 Darwin Professional Underwriters* 5,200 120 Delphi Financial Group, Cl A (B) 22,100 850 Digital Realty Trust+ 26,287 1,003 Dime Community Bancshares 91,399 1,240 Discover Financial Services* 35,075 609 Dollar Financial (B)* 68,900 2,059 Downey Financial (B) 20,700 861 Dundee (Canada)+* 39,300 1,432 Dundee (Canada)+ 4,000 146 DuPont Fabros Technology (B)* 80,140 1,503 E*Trade Financial* 212,128 976 East West Bancorp (B) 92,105 2,482 Eaton Vance 175,630 7,686 Education Realty Trust+ 34,341 412 EMC Insurance Group 19,225 468 Employers Holdings 48,609 865 Endurance Specialty Holdings (B) 101,615 4,104 Equity Lifestyle Properties+ 10,847 503 Equity One+ 29,217 692 Equity Residential+ (B) 168,400 6,266 Essex Property Trust+ 29,900 3,102 Evercore Partners, Cl A 71,300 1,495 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Everest Re Group 26,000 $ 2,728 Extra Space Storage+ (B) 162,500 2,317 Ezcorp, Cl A* 55,900 702 FCStone Group* 32,455 1,370 Federal Realty Investment Trust+ 46,251 3,848 Federated Investors, Cl B 150,633 6,144 FelCor Lodging Trust+ 8,200 144 Financial Federal (B) 37,300 824 First Cash Financial Services* 142,200 2,417 First Financial Bancorp 52,812 606 First Financial Bankshares (B) 2,100 82 First Horizon National (B) 102,217 2,257 First Industrial Realty Trust+ 600 22 First Marblehead (B) 56,083 1,683 First Mercury Financial* 61,258 1,300 First Midwest Bancorp (B) 129,400 4,231 First Niagara Financial Group 65,100 809 FirstFed Financial (B)* 82,093 2,875 FirstMerit 31,212 643 Fortress Investment Group LLC (B)* 112,300 2,045 Fremont General (B) 31,200 78 Friedman Billings Ramsey Group, Cl A+ (B) 61,700 184 Frontier Financial (B) 30,400 582 GAMCO Investors, Cl A 2,200 117 General Shopping Brasil (Brazil)* 228,900 2,188 GFI Group* 7,000 682 Gluskin Sheff + Associates (Canada)* 70,100 1,773 GMP Capital Trust (Canada) 77,000 1,810 Gramercy Capital+ (B) 36,800 875 Great Southern Bancorp (B) 2,500 56 Greenhill (B) 39,368 2,846 Grubb & Ellis (B)* 59,500 307 Grubb & Ellis Realty Advisors* 329,750 2,061 Hallmark Financial Services* 3,800 57 Hancock Holding (B) 40,764 1,598 Hanmi Financial (B) 15,200 146 Hanover Insurance Group 103,268 4,657 HCP+ (B) 83,600 2,796 Health Care+ (B) 53,200 2,384 Hercules Technology Growth Capital 173,016 2,043 Hersha Hospitality Trust+ 222,200 2,262 Highbury Financial (B)* 29,800 139 Highbury Financial Units* 63,600 350 Home Bancshares (B) 52,300 1,048 Horace Mann Educators 95,350 1,865 Horizon Financial 3,700 64 Hospitality Properties Trust+ 93,600 3,420 Host Hotels & Resorts+ (B) 93,300 1,790 HRPT Properties Trust+ 169,700 1,405 Huntington Bancshares 99,500 1,561 IMPAC Mortgage Holdings+ (B) 59,700 36 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 59 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Imperial Capital Bancorp 5,879 $ 134 IndyMac Bancorp (B) 71,460 682 Infinity Property & Casualty 15,154 592 IntercontinentalExchange (B)* 14,149 2,362 Investors Real Estate Trust+ (B) 163,200 1,642 IPC Holdings 87,300 2,581 Irwin Financial 33,700 274 Jefferies Group 119,800 3,062 Jones Lang LaSalle (B) 29,961 2,519 Kansas City Life Insurance 25,500 1,150 KBW (B)* 66,800 1,764 Kilroy Realty+ 12,800 715 KKR Financial Holdings 61,300 934 LandAmerica Financial Group (B) 24,700 650 Lazard, Cl A 32,487 1,581 Legg Mason 13,406 1,023 Leucadia National 5,400 254 Macerich+ (B) 49,700 3,859 Mack-Cali Realty+ 114,600 4,090 Maguire Properties+ 6,500 164 MarketAxess Holdings* 61,065 877 Marsh & McLennan 90,361 2,270 MCG Capital 181,800 2,054 Meruelo Maddux Properties* 273,100 1,147 MFA Mortgage Investments+ 313,948 2,756 MGIC Investment (B) 44,581 1,049 Mid-America Apartment Communities+ 12,910 623 Move* 516,525 1,214 MSCI, Cl A* 69,790 1,930 MVC Capital 124,600 2,002 NASDAQ Stock Market (B)* 54,958 2,383 National Financial Partners 30,550 1,387 National Interstate 4,000 132 National Retail Properties+ (B) 59,902 1,467 Nationwide Financial Services, Cl A 46,500 2,081 Nationwide Health Properties+ 2,619 82 Navigators Group* 10,909 640 Nelnet, Cl A 91,220 1,258 New York Community Bancorp (B) 290,898 5,414 NewAlliance Bancshares 58,071 749 NNN Realty Advisors (F) (G) (H)* 237,000 1,422 NorthStar Realty Finance+ (B) 114,681 1,052 NYSE Euronext 7,225 626 Och-Ziff Capital Management Group LLC (B)* 87,700 2,162 Ocwen Financial* 55,463 311 Old National Bancorp (B) 50,500 807 Old Second Bancorp (B) 7,800 207 Omega Healthcare Investors+ 7,319 118 optionsXpress Holdings 89,631 2,726 Pacific Capital Bancorp 7,106 146 PartnerRe 7,180 593 PennantPark Investment* 95,800 1,101 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- People's United Financial (B) 216,888 $ 3,681 PFF Bancorp (B) 30,814 290 Philadelphia Consolidated Holding* 60,800 2,589 Piper Jaffray (B)* 87,700 4,062 Platinum Underwriters Holdings 120,822 4,388 PMI Group (B) 45,015 596 Portfolio Recovery Associates (B) 42,900 1,728 Post Properties+ (B) 58,400 2,121 Potlatch+ 2,086 96 Preferred Bank 5,400 144 Presidential Life 20,700 357 ProAssurance* 17,288 948 Prologis+ (B) 117,900 7,713 Public Storage+ 70,079 5,420 Radian Group (B) 34,500 391 Rainier Pacific Financial Group 8,241 122 RAIT Financial Trust+ (B) 211,248 1,827 Ram Holdings Ltd* 120,100 697 Realty Income+ (B) 90,589 2,582 Reinsurance Group of America 33,214 1,797 Safeco (B) 48,100 2,776 Safety Insurance Group 22,696 829 SeaBright Insurance Holdings* 25,000 388 Sierra Bancorp (B) 2,200 55 Signature Bank* 17,522 649 Simon Property Group+ (B) 77,100 7,591 SL Green Realty+ (B) 43,500 4,520 South Financial Group (B) 100,383 1,799 St. Joe 81,021 2,305 Stancorp Financial Group 22,500 1,172 Sterling Bancshares (B) 149,500 1,845 Strategic Hotels & Resorts+ (B) 235,939 4,320 Sunstone Hotel Investors+ 121,900 2,828 Superior Bancorp* 42,650 255 SVB Financial Group (B)* 66,575 3,427 SWS Group 29,248 397 SY Bancorp (B) 2,500 59 T. Rowe Price Group 6,836 420 Taubman Centers+ 55,500 2,971 Taylor Capital Group 6,397 142 TCF Financial (B) 149,115 2,894 TD Ameritrade Holding* 45,224 845 Texas Capital Bancshares* 4,200 89 Thomas Weisel Partners Group* 48,200 662 Thornburg Mortgage+ (B) 114,881 1,225 Titanium Asset* 105,000 591 Tompkins Trustco (B) 4,800 204 TradeStation Group* 112,600 1,343 Transatlantic Holdings 3,723 277 Triad Guaranty* 4,711 41 Trico Bancshares 3,300 70 Triplecrown Acquisition* 173,413 1,731 Trustmark 54,300 1,382 UCBH Holdings 2,461 40 - -------------------------------------------------------------------------------- 60 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- UMB Financial 6,826 $ 257 UnionBanCal 62,641 3,382 United Bankshares 38,400 1,193 Unitrin 37,200 1,721 Universal American Financial* 15,433 368 Universal Health Realty Income Trust+ 6,836 225 UnumProvident (B) 159,604 3,965 Ventas+ (B) 130,176 5,676 ViewPoint Financial Group 11,300 201 Wachovia 2 -- Waddell & Reed Financial, Cl A 40,853 1,396 Washington Federal 83,170 1,952 Webster Financial 21,992 741 Weingarten Realty Investors+ (B) 104,100 3,711 West Coast Bancorp 6,200 124 Westamerica Bancorporation 28,066 1,319 Whitney Holding 7,000 192 Willis Group Holdings 23,835 952 Wilshire Bancorp 15,200 142 Winthrop Realty Trust+ (B) 33,000 176 Wintrust Financial 30,664 1,083 World Acceptance (B)* 80,688 2,547 WR Berkley 56,300 1,722 WSFS Financial 2,700 151 Zenith National Insurance 27,328 1,149 -------------- 438,025 -------------- HEALTH CARE -- 10.7% Abaxis (B)* 57,647 1,912 Abraxis Bioscience (B)* 35,150 2,074 Acadia Pharmaceuticals (B)* 60,000 680 Achillion Pharmaceuticals* 109,535 544 Acorda Therapeutics* 39,755 744 Adams Respiratory Therapeutics (B)* 74,725 3,224 Affymax (B)* 6,000 153 Affymetrix (B)* 146,900 3,063 Air Methods* 10,335 544 Albany Molecular Research* 31,127 411 Alexion Pharmaceuticals* 15,630 1,137 Align Technology* 19,544 330 Alkermes* 159,000 2,267 Alpharma, Cl A 5,602 118 American Dental Partners* 10,230 204 AMERIGROUP* 10,000 344 Amsurg (B)* 81,179 2,099 Analogic 3,505 189 APP Pharmaceuticals (B)* 181,400 2,131 Apria Healthcare Group (B)* 106,647 2,311 Arena Pharmaceuticals (B)* 196,600 1,720 Ariad Pharmaceuticals (B)* 308,900 1,390 Array Biopharma (B)* 91,330 1,011 Axcan Pharma* 187,457 4,233 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Barr Pharmaceuticals* 53,600 $ 2,878 Beckman Coulter 15,590 1,103 BioMarin Pharmaceuticals (B)* 66,910 1,840 Bradley Pharmaceuticals* 17,639 347 Cadence Pharmaceuticals (B)* 51,194 689 Cell Genesys (B)* 247,000 576 Centene* 4,400 110 Cephalon (B)* 113,824 8,528 Charles River Laboratories International* 11,400 724 Chemed 17,419 943 Collagenex Pharmaceuticals* 49,690 396 Computer Programs & Systems 43,499 969 Conmed* 52,046 1,295 Cooper 62,251 2,679 Corvel* 3,750 87 Covance* 48,870 4,268 Coventry Health Care* 35,900 2,078 Cubist Pharmaceuticals (B)* 249,248 5,294 CV Therapeutics (B)* 511,300 4,459 Cynosure, Cl A (B)* 55,906 1,660 DaVita* 30,900 1,915 Dentsply International 80,941 3,463 Discovery Laboratories (B)* 342,636 1,000 Eclipsys* 58,902 1,367 Emergency Medical Services, Cl A* 10,837 333 Encysive Pharmaceuticals (B)* 486,900 326 Endo Pharmaceuticals Holdings* 129,703 3,555 eResearch Technology (B)* 119,800 1,421 Exelixis (B)* 222,900 1,946 Express Scripts* 39,854 2,700 Forest Laboratories* 2,300 89 Gen-Probe* 9,974 667 Genzyme* 24,648 1,847 Geron (B)* 67,700 438 Greatbatch* 28,088 578 GTx* 4,000 57 Health Net* 57,397 2,788 HealthExtras* 59,390 1,578 Healthspring* 63,828 1,206 Healthways (B)* 65,593 3,829 Henry Schein* 3,798 225 HLTH* 5,400 76 Hologic (B)* 30,221 2,006 Human Genome Sciences (B)* 245,100 2,551 I-Flow* 146,767 2,447 Idexx Laboratories* 11,402 690 Illumina (B)* 84,025 4,856 ImClone Systems* 15,954 719 Immucor (B)* 18,639 618 IMS Health 46,405 1,084 Incyte (B)* 325,200 2,790 Indevus Pharmaceuticals* 53,075 398 InterMune (B)* 23,800 387 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 61 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Intuitive Surgical* 15,311 $ 5,017 Invacare 29,872 777 Inverness Medical Innovations* 16,689 979 Invitrogen (B)* 41,300 4,007 Kendle International* 18,285 789 Kindred Healthcare (B)* 35,124 863 Kinetic Concepts (B)* 43,600 2,557 King Pharmaceuticals* 195,415 2,069 LHC Group* 57,815 1,480 Lifecell (B)* 52,500 2,129 Lincare Holdings (B)* 106,299 3,634 Magellan Health Services* 147,963 6,725 MannKind* 61,260 576 Manor Care (B) 27,521 1,778 Martek Biosciences (B)* 52,811 1,366 Matria Healthcare* 22,507 511 Medarex (B)* 543,400 6,901 Medcath* 25,578 650 Medicines* 58,300 1,031 Medicis Pharmaceutical, Cl A (B) 64,600 1,738 Medtox Scientific* 8,027 146 Metabolix (B)* 88,300 1,900 MGI Pharma* 21,100 730 Micrus Endovascular (B)* 92,717 1,698 Millipore (B)* 14,490 1,186 MWI Veterinary Supply (B)* 72,262 3,041 Mylan Laboratories (B) 182,413 2,623 NuVasive* 21,429 912 Odyssey HealthCare* 228,470 2,285 Omnicare 73,698 1,878 Omnicell* 9,490 250 Omrix Biopharmaceuticals* 53,680 1,792 Orthofix International* 7,956 465 OSI Pharmaceuticals (B)* 31,600 1,473 Owens & Minor 43,491 1,708 Par Pharmaceutical* 9,163 176 Patterson* 63,314 2,037 PDL BioPharma (B)* 85,798 1,519 Pediatrix Medical Group* 37,915 2,452 PerkinElmer 121,910 3,326 PharmaNet Development Group* 4,092 162 PharMerica (B)* 4,682 69 Pozen (B)* 20,900 218 PRA International* 28,358 859 Profarma Distribuidora de Produtos Farmaceuticos (Brazil)* 80,300 1,652 PSS World Medical (B)* 127,135 2,438 Regeneron Pharmaceuticals (B)* 93,400 2,034 Res-Care* 16,509 376 Resmed* 46,266 2,119 Respironics* 45,983 2,265 Rigel Pharmaceuticals (B)* 131,300 940 Sciele Pharma (B)* 91,335 2,039 Sepracor* 3,300 88 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Sirona Dental Systems* 25,350 $ 686 Somanetics* 37,101 742 Spectranetics* 98,292 1,491 Symmetry Medical* 35,657 600 Techne* 20,044 1,306 Theravance* 43,340 1,044 TomoTherapy* 65,495 1,218 United Therapeutics (B)* 51,000 5,104 Universal Health Services, Cl B 50,462 2,571 VCA Antech* 32,337 1,327 Ventana Medical Systems* 15,885 1,411 Vertex Pharmaceuticals* 12,500 317 Viropharma (B)* 32,200 288 Warner Chilcott, Cl A* 64,100 1,170 Waters* 5,625 439 Watson Pharmaceuticals* 213,718 6,264 WellCare Health Plans* 19,146 745 West Pharmaceutical Services 12,837 482 -------------- 243,344 -------------- INDUSTRIALS -- 13.9% ABM Industries 6,826 139 ABX Air* 28,677 128 ACCO Brands* 66,925 1,118 Accuride* 1,529 12 Actuant, Cl A 26,694 845 Acuity Brands (B) 16,900 667 Administaff 11,221 367 Aegean Marine Petroleum Network (B)* 44,995 1,800 AGCO (B)* 110,258 7,601 Alaska Air Group (B)* 89,219 2,260 Albany International, Cl A 49,652 1,920 Alexander & Baldwin 11,937 613 Allen-Vanguard* 136,900 1,171 Alliant Techsystems (B)* 21,076 2,462 Allied Waste Industries* 163,100 1,861 Altra Holdings* 68,800 1,103 Amerco* 2,049 134 American Commercial Lines (B)* 127,278 2,213 American Ecology 114,100 2,538 American Woodmark (B) 79,333 1,537 Ametek 42,980 1,891 AO Smith 65,150 2,306 Apogee Enterprises 132,300 2,940 Applied Industrial Technologies 40,700 1,230 Arkansas Best (B) 18,500 422 ASV* 2,900 34 Avis Budget Group* 93,607 1,407 Badger Meter 811 32 BE Aerospace* 138,310 6,501 Belden CDT 47,550 2,190 Blount International* 12,825 157 - -------------------------------------------------------------------------------- 62 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Brady, Cl A 22,154 $ 887 Briggs & Stratton 105,200 2,399 Brink's 96,700 6,187 Bucyrus International, Cl A 4,625 406 Ceradyne (B)* 32,441 1,604 Chicago Bridge & Iron 124,351 6,609 ChoicePoint* 7,800 295 Cintas 28,814 922 CIRCOR International 12,879 559 Clarcor 62,850 2,238 Clean Harbors* 11,369 611 Columbus McKinnon* 26,515 825 COMSYS IT Partners* 14,500 194 Con-way 38,700 1,636 Continental Airlines, Cl B (B)* 112,260 3,160 Copart* 33,400 1,248 Corrections of America* 190,360 5,808 CoStar Group (B)* 75,778 3,652 CRA International (B)* 41,500 1,920 Crane 57,545 2,586 Cubic (B) 6,600 261 Cummins 16,800 1,964 Curtiss-Wright 44,852 2,419 Delta Air Lines* 53,700 1,061 Deluxe (B) 66,343 2,096 Donaldson 25,900 1,212 Duff & Phelps* 70,590 1,407 Dun & Bradstreet 37,766 3,370 Dynamic Materials 74,500 4,728 DynCorp International, Cl A* 5,251 110 EDO 17,925 1,001 EMCOR Group (B)* 135,884 3,620 EnergySolutions (B)* 24,500 584 EnPro Industries* 55,981 1,713 Equifax 38,114 1,419 ESCO Technologies* 8,700 322 Esterline Technologies* 44,171 2,307 ExpressJet Holdings (B)* 65,000 162 Federal Signal 30,098 346 First Solar* 2,500 593 Flow International (B)* 245,000 1,935 Fluor 3,161 465 Force Protection (F) (G) (H)* 132,500 1,432 Force Protection (B)* 55,000 595 Forward Air 75,060 2,430 Freightcar America 8,700 296 G&K Services 9,239 376 Gardner Denver* 51,000 1,689 Genco Shipping & Trading (B) 13,300 842 GenCorp* 61,025 738 General Cable (B)* 61,870 4,602 Genlyte Group (B)* 18,400 1,734 Geo Group* 90,701 2,309 GeoEye* 36,300 1,151 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Global Cash Access (B)* 48,100 $ 167 Goodrich 30,453 2,171 GrafTech International (B)* 89,692 1,441 Griffon (B)* 24,600 318 H&E Equipment Services* 129,025 2,228 Harsco 14,800 889 Heartland Express 78,230 1,137 Heico, Cl A 49,910 1,996 Herman Miller 11,400 313 Hertz Global Holdings* 90,400 1,727 Honeywell International 10,165 576 Horizon Lines, Cl A 95,815 1,908 Hubbell, Cl B 17,878 982 Hurco* 1,400 58 IDEX 10,345 369 IHS, Cl A* 61,353 4,303 IKON Office Solutions (B) 156,300 1,974 Innerworkings (B)* 168,264 2,667 Interface, Cl A 23,866 416 Ionatron* 4,100 14 JA Solar Holdings ADR* 78,023 4,630 Jacobs Engineering Group* 16,344 1,369 JB Hunt Transport Services (B) 65,000 1,709 Joy Global 5,520 320 Kadant* 14,786 436 Kaman 12,404 396 Kansas City Southern* 13,473 464 Kaydon (B) 40,644 2,057 Kennametal 23,209 1,811 Kirby* 9,911 476 Knoll 64,843 1,133 Ladish* 11,869 524 Landstar System (B) 36,390 1,448 LB Foster, CL A* 4,403 202 Lennox International 91,000 3,079 Lincoln Electric Holdings 9,259 646 Manitowoc 76,200 3,341 Michael Baker* 26,655 931 Middleby (B)* 34,100 2,588 Monster Worldwide* 51,900 1,753 Moog, Cl A* 33,356 1,504 Mueller Industries 39,900 1,206 NCI Building Systems (B)* 65,000 2,231 Nuco2* 78,755 2,172 Old Dominion Freight Line* 54,680 1,232 Orbital Sciences (B)* 125,600 3,022 Orion Marine Group (F) (G) (H)* 116,900 1,666 Oshkosh Truck 74,565 3,586 Pall (B) 50,854 1,945 Perini* 72,665 3,865 Pinnacle Airlines (B)* 28,700 467 Pitney Bowes 26,304 1,013 Quanta Services (B)* 141,065 3,862 Republic Airways Holdings (B)* 48,000 964 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 63 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Republic Services 55,860 $ 1,853 Resources Connection 92,165 1,900 Rockwell Automation 1,025 70 RR Donnelley & Sons 26,405 968 RSC Holdings (B)* 209,800 2,576 Ryder System 17,100 741 School Specialty* 16,573 591 Sequa, Cl A* 1,271 222 Shaw Group* 26,890 1,705 Simpson Manufacturing 20,765 553 Skywest 11,607 305 Spirit Aerosystems Holdings, Cl A* 233,945 8,176 SPX 14,200 1,445 Standard Parking* 6,620 307 Standard Register 23,168 280 Steelcase, Cl A 311,872 4,719 Sunpower, Cl A (B)* 24,898 3,098 Superior Essex (B)* 37,842 918 TAL International Group (B) 74,900 1,696 Taleo, Cl A* 118,299 3,340 Taser International (B)* 112,699 1,579 TBS International, Cl A* 11,500 502 Teledyne Technologies (B)* 38,953 2,112 Teleflex 14,499 875 TeleTech Holdings* 31,100 644 Terex* 20,730 1,336 Tetra Tech (B)* 54,672 1,133 Textainer Group ADR 135,200 2,210 Thomas & Betts* 23,200 1,261 Timken 76,575 2,442 Tredegar 30,491 441 Trinity Industries (B) 86,500 2,189 UAL* 28,045 1,148 UAP Holding (B) 103,575 3,098 United Rentals (B)* 39,000 908 United Stationers* 67,160 3,402 United Technologies 14,054 1,051 URS (B)* 124,901 7,181 Wabtec 135,429 4,596 Walter Industries 69,766 2,420 Waste Connections* 87,731 2,792 Waste Industries USA 5,600 189 Watson Wyatt Worldwide, Cl A (B) 28,500 1,312 Watts Water Technologies, Cl A 13,924 407 WESCO International* 22,835 924 Woodward Governor 48,500 3,324 WW Grainger 12,000 1,060 YRC Worldwide (B)* 40,500 717 -------------- 315,052 -------------- INFORMATION TECHNOLOGY -- 18.3% ACI Worldwide (B)* 41,771 954 Activision* 335,396 7,429 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- ADC Telecommunications (B)* 63,164 $ 1,046 Advanced Analogic Technologies* 164,979 1,777 Akamai Technologies* 39,473 1,502 AMIS Holdings (B)* 53,061 407 Amkor Technology (B)* 234,200 1,930 Anadigics (B)* 94,557 1,041 Ansys* 25,687 998 Arris Group* 314,671 3,282 Arrow Electronics (B)* 93,476 3,460 AsiaInfo Holdings* 10,566 125 Aspen Technology (B)* 25,500 432 Asyst Technologies* 431,900 1,486 Atmel* 1,024,358 4,497 ATMI (B)* 126,368 3,802 Avnet* 115,958 4,001 Avocent* 129,945 3,236 AVX 96,437 1,382 Baidu.com ADR* 4,037 1,542 Bankrate (B)* 78,621 3,077 Black Box 40,193 1,479 Blackboard* 6,900 269 BMC Software* 104,820 3,467 Brightpoint* 14,147 235 Broadcom, Cl A* 759 20 Broadridge Financial Solutions* 41,700 949 CACI International, Cl A* 43,198 1,961 Captaris* 20,191 82 Checkpoint Systems* 31,234 742 China Digital TV ADR (B)* 68,600 2,145 Chordiant Software* 92,000 923 Cirrus Logic* 40,473 231 Citrix Systems* 98,342 3,637 CMGI* 8,996 93 CNET Networks (B)* 107,000 811 Coherent* 27,323 786 CommScope* 13,100 531 Commvault Systems* 68,600 1,528 Computer Sciences* 49,850 2,633 Comtech Group (B)* 20,000 355 Comtech Telecommunications* 20,995 1,043 Comverge (B)* 35,431 1,115 Concur Technologies (B)* 126,676 4,758 Convergys* 277,152 4,520 CPI International* 6,500 109 Credence Systems* 430,426 882 Cree* 8,464 208 CSG Systems International (B)* 153,210 2,539 CTS (B) 129,761 1,372 Cybersource* -- -- Cymer* 96,715 3,972 Cypress Semiconductor* 118,345 3,931 Daktronics (B) 109,990 2,566 Data Domain (B)* 103,200 2,660 DealerTrack Holdings (B)* 74,003 3,148 - -------------------------------------------------------------------------------- 64 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Dice Holdings (B)* 42,400 $ 419 Diebold 49,928 1,696 Diodes (B)* 64,856 1,908 Dolby Laboratories, Cl A* 13,300 668 DSP Group* 139,500 1,887 DST Systems* 12,442 1,054 DTS* 62,585 1,549 Dycom Industries* 5,200 146 EFJ* 109,000 319 Electronic Arts* 72,075 4,050 Electronics for Imaging (B)* 119,953 2,752 Elixir Gaming Technologies* 231,335 911 Emergis (Canada)* 197,300 1,617 Emulex (B)* 65,985 1,105 EPIQ Systems* 51,850 903 Equinix (B)* 55,042 5,730 Euronet Worldwide (B)* 79,385 2,601 F5 Networks* 120,200 3,176 Factset Research Systems 36,782 2,305 Fair Isaac (B) 10,000 370 Flextronics International* 493,900 5,907 Flir Systems* 13,190 907 Foundry Networks (B)* 114,100 2,012 Gevity HR 75,900 323 Giant Interactive Group ADR (B)* 171,600 1,853 Global Payments 5,900 255 Glu Mobile (B)* 90,394 494 Greenfield Online* 46,819 704 Harmonic* 128,900 1,337 Harris Stratex Networks, Cl A* 82,000 1,412 Heartland Payment Systems 26,650 860 Hewitt Associates, Cl A* 56,272 2,110 Hutchinson Technology (B)* 74,700 1,965 Imation (B) 109,200 2,192 Immersion (B)* 37,300 490 Informatica (B)* 109,800 1,883 Information Services Group* 189,905 1,278 Integrated Device Technology* 112,600 1,366 InterDigital (B)* 63,600 1,145 Intermec* 10,453 224 International Rectifier* 4,989 162 Internet Brands, Cl A* 300,000 2,325 Intersil, Cl A 150,500 3,753 Intuit* 49,200 1,443 IPG Photonics* 81,510 1,659 Itron* 12,344 957 Jack Henry & Associates (B) 22,200 594 JDA Software Group (B)* 82,800 1,734 Juniper Networks* 80,399 2,389 Jupitermedias* 194,500 834 Keynote Systems* 172,805 2,378 Kulicke & Soffa Industries (B)* 136,598 967 L-1 Identity Solutions (B)* 20,541 382 Lam Research* 2,819 129 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Lawson Software (B)* 443,044 $ 4,306 LDK Solar ADR (B)* 9,500 281 Lexmark International, Cl A* 99,181 3,459 Liquidity Services* 90,462 1,080 Littelfuse* 27,156 906 LoJack* 17,400 305 Longtop Financial Technologies ADR (B)* 13,200 331 LoopNet* 56,607 869 LSI Logic* 103,000 572 LTX* 65,606 157 Manhattan Associates* 63,188 1,714 Mantech International, Cl A* 7,200 279 Mastec (B)* 101,607 1,027 Mattson Technology* 4,800 40 MAXIMUS 15,840 618 McAfee* 31,523 1,228 MEMC Electronic Materials* 6,300 489 Methode Electronics (B) 208,787 2,516 Mettler Toledo International* 40,586 4,723 Micron Technology (B)* 114,100 949 Micros Systems* 51,916 3,745 Microsemi (B)* 343,075 7,850 MicroStrategy, Cl A* 2,005 202 Microtune* 32,150 167 MIPS Technologies (B)* 332,200 1,887 MKS Instruments (B)* 35,500 645 Molex 71,541 1,972 Monolithic Power Systems* 50,505 964 MTS Systems 8,113 333 National Semiconductor (B) 81,200 1,856 NCR* 13,725 329 Net 1 UEPS Technologies (B)* 45,551 1,410 Netlogic Microsystems* 3,200 94 Neutral Tandem* 10,990 201 Novatel* 36,700 1,832 Novatel Wireless (B)* 48,100 747 Novellus Systems (B)* 69,100 1,797 Nuance Communications (B)* 296,521 5,984 Omniture (B)* 173,480 4,929 ON Semiconductor (B)* 203,721 1,872 OSI Systems* 52,000 1,289 Palm (B)* 154,400 1,076 Parametric Technology (B)* 141,892 2,370 Park Electrochemical 56,700 1,670 Parkervision (B)* 99,250 976 Parkervision* 35,500 349 PC Connection (B)* 13,000 166 Perceptron* 94,075 1,067 Perficient (B)* 79,821 1,339 Pericom Semiconductor* 92,609 1,534 Perot Systems, Cl A* 66,980 881 Plantronics 21,922 589 Plexus (B)* 93,726 2,789 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 65 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- PMC - Sierra (B)* 413,100 $ 2,900 Polycom (B)* 400,500 9,720 Power Integrations* 88,120 2,651 Powerwave Technologies* 105,897 438 QLogic* 75,000 1,014 RealNetworks* 26,700 165 Red Hat (B)* 408,100 8,170 RF Micro Devices (B)* 814,336 4,707 Richardson Electronics 22,730 148 Riverbed Technology* 87,947 2,487 Rudolph Technologies* 111,000 1,326 S1* 31,659 235 Salary.com* 87,733 1,176 Salesforce.com (B)* 66,123 3,751 SanDisk* 7,057 264 Satyam Computer Services ADR* 104,400 2,731 SAVVIS* 70,170 2,248 Seachange International* 149,500 1,127 Secure Computing* 22,071 200 Sierra Wireless (B)* 47,500 764 Sigma Designs (B)* 24,586 1,599 Silicon Laboratories* 11,997 446 Sirf Technology Holdings (B)* 216,559 5,217 SkillSoft ADR* 232,799 2,256 Skyworks Solutions* 374,100 3,397 Solera Holdings* 225,240 5,183 SRA International, Cl A* 30,308 829 Standard Microsystems* 3,964 140 Stratasys (B)* 77,943 1,948 Sun Microsystems* 63,409 1,318 Sybase (B)* 414,610 10,631 SYKES Enterprises* 175,900 3,247 Synchronoss Technologies* 20,735 683 SYNNEX* 7,578 157 Synopsys* 155,194 3,819 Tech Data* 71,800 2,700 Technitrol* 66,200 1,772 TechTarget* 50,470 689 Teradata* 13,500 350 Teradyne* 134,955 1,470 Terremark Worldwide* 279,580 1,568 THQ (B)* 124,500 3,044 TNS 21,311 335 Trina Solar ADR (B)* 59,200 2,537 Triquint Semiconductor* 395,300 2,344 TTM Technologies (B)* 167,000 2,019 Ultimate Software Group* 47,460 1,550 Ultra Clean Holdings* 21,837 314 United Online (B) 201,700 3,034 Universal Display (B)* 106,825 1,769 Varian Semiconductor Equipment Associates* 59,425 2,467 Vasco Data Security International* 60,530 1,358 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Veeco Instruments* 32,950 $ 553 VeriFone Holdings (B)* 75,429 3,623 VeriSign* 103,038 4,214 Vignette (B)* 81,950 1,260 Virtusa* 90,399 1,597 VistaPrint (B)* 83,359 3,701 Vocus (B)* 38,508 1,209 Western Digital* 154,600 4,272 Wind River Systems (B)* 418,700 4,275 Wright Express* 92,391 3,506 Xyratex* 41,394 610 Zoran* 69,360 1,513 Zygo* 114,620 1,294 -------------- 415,494 -------------- MATERIALS -- 5.2% Airgas 40,474 2,003 AK Steel Holding* 73,567 3,279 Albemarle 14,700 649 Allegheny Technologies 27,000 2,639 AM Castle (B) 41,002 1,029 Apex Silver Mines* 28,125 480 Aptargroup 7,054 298 Arch Chemicals 10,600 436 Ashland 99,275 4,888 Ball 34,352 1,589 Bemis 47,810 1,297 Buckeye Technologies (B)* 207,499 2,963 Cabot 62,918 2,166 Carpenter Technology 36,728 2,771 Celanese, Ser A 159,097 6,313 CF Industries Holdings 19,762 1,798 Cleveland-Cliffs (B) 25,300 2,282 Commercial Metals 100,865 3,118 Domtar* 139,253 1,058 Eastman Chemical 39,400 2,530 Esmark* 114,600 2,223 Ferro 21,384 453 FMC 99,854 5,464 Frontera Copper (Canada)* 248,000 1,506 Greif, Cl A 38,577 2,279 Grupo Simec SAB de CV ADR (B)* 163,083 1,561 H.B. Fuller (B) 81,200 2,054 Headwaters* 6,409 77 Hercules 47,887 929 Horsehead Holding (B)* 87,600 1,457 Innospec 35,996 632 Katanga Mining (Canada)* 156,300 2,319 Louisiana-Pacific 60,800 935 Lubrizol 45,600 2,925 MeadWestvaco 58,400 1,920 Neenah Paper 30,804 930 NewMarket 3,636 195 - -------------------------------------------------------------------------------- 66 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Olin 17,401 $ 364 OM Group* 23,200 1,306 Owens-Illinois* 163,251 7,328 Packaging of America 60,039 1,698 Pactiv* 221,860 5,635 PolyOne* 173,800 1,090 Quanex (B) 21,900 1,096 Reliance Steel & Aluminum 43,600 2,249 Rock-Tenn, Cl A 121,228 3,198 Rockwood Holdings* 22,310 751 Rohm & Haas 18,611 1,012 RPM International 38,400 731 Schnitzer Steel Industries, Cl A 27,917 1,743 Schweitzer-Mauduit International 28,148 752 Scotts Miracle-Gro, Cl A 37,400 1,380 Sherritt International (Canada) 102,800 1,439 Silgan Holdings 37,093 1,989 Sonoco Products 116,088 3,527 Spartech 64,231 877 Steel Dynamics 41,800 2,103 Symyx Technologies* 26,413 202 Terra Industries (B)* 9,500 359 Texas Industries 54,623 3,790 United States Steel 18,700 1,827 Wellman (B) 15,500 6 WR Grace* 4,000 108 Zep* 7,350 96 -------------- 118,101 -------------- TELECOMMUNICATION SERVICES -- 2.2% Alaska Communications Systems Group 106,825 1,602 Atlantic Tele-Network 11,100 423 Cbeyond (B)* 74,284 3,073 Centennial Communications* 130,550 1,162 CenturyTel 154,586 6,590 Cincinnati Bell* 341,122 1,624 Citizens Communications 50,442 655 Clearwire, Cl A (B)* 153,400 2,388 Cogent Communications Group (B)* 30,400 632 Consolidated Communications Holdings 269 4 Fairpoint Communications (B) 140,900 2,102 FiberTower* 114,700 262 Global Crossing* 62,825 1,152 Golden Telecom 1,825 185 IDT, Cl B* 19,325 157 Iowa Telecommunications Services 28,350 483 Leap Wireless International* 30,075 1,044 NeuStar, Cl A (B)* 140,327 4,458 NTELOS Holdings 14,131 375 Premiere Global Services* 64,700 892 Rural Cellular, Cl A* 18,825 829 SBA Communications, Cl A (B)* 260,267 9,744 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Sierra Wireless* 61,500 $ 990 Syniverse Holdings* 98,646 1,541 Telephone & Data Systems 23,200 1,444 Time Warner Telecom, Cl A* 182,788 4,100 USA Mobility 67,393 889 Vonage Holdings* 200,600 423 -------------- 49,223 -------------- UTILITIES -- 4.4% AES* 11,203 245 AGL Resources 158,941 5,894 Alliant Energy 51,416 2,135 Atmos Energy 131,199 3,436 Black Hills 56,239 2,343 Centerpoint Energy (B) 66,000 1,178 Cia de Saneamento de Minas Gerais- COPASA (Brazil)* 94,500 1,679 Cleco 51,752 1,446 CMS Energy 85,300 1,487 Consolidated Edison 46,573 2,256 DPL 53,575 1,622 El Paso Electric (B)* 44,800 1,152 Empire District Electric 42,140 971 Energen 76,190 4,856 Equitable Resources 76,926 4,066 Idacorp (B) 45,305 1,593 Integrys Energy Group 75,888 3,871 ITC Holdings 41,905 2,139 Laclede Group 12,817 441 MDU Resources Group 60,800 1,659 New Jersey Resources 34,763 1,754 Nicor (B) 76,700 3,232 NiSource 50,826 941 Northwest Natural Gas 52,080 2,498 NorthWestern 61,125 1,702 NSTAR 37,700 1,319 OGE Energy 106,440 3,789 Oneok 42,918 1,996 Ormat Technologies (B) 41,200 2,081 Pinnacle West Capital (B) 74,660 3,200 PNM Resources 9,636 214 PNOC Energy Development (Philippines)* 9,480,500 1,529 Portland General Electric 170,521 4,565 Puget Energy 58,600 1,645 Reliant Energy* 70,959 1,848 SCANA 94,580 4,030 Southwest Gas (B) 67,568 1,954 UGI 73,255 1,937 Unisource Energy 11,821 366 Vectren 135,312 3,973 Westar Energy 52,491 1,360 WGL Holdings (B) 52,717 1,742 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 67 SCHEDULE OF INVESTMENTS (Unaudited) Small/Mid Cap Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wisconsin Energy 110,643 $ 5,294 Xcel Energy 44,827 1,034 -------------- 98,472 -------------- Total Common Stock (Cost $2,148,613) ($ Thousands) 2,184,119 -------------- CORPORATE OBLIGATION (C) (E) -- 0.4% FINANCIALS -- 0.4% SLM MTN 4.660%, 12/17/07 $ 9,358 9,358 -------------- Total Corporate Obligation (Cost $9,358) ($ Thousands) 9,358 -------------- PREFERRED STOCK -- 0.0% FINANCIALS -- 0.0% Thornburg Mortgage 22,500 552 -------------- Total Preferred Stock (Cost $563) ($ Thousands) 552 -------------- EXCHANGE TRADED FUNDS -- 0.1% iShares Russell 2000 Index Fund* 5,832 447 iShares Russell Midcap Value Index Fund* 7,421 1,066 -------------- Total Exchange Traded Funds (Cost $1,520) ($ Thousands) 1,513 -------------- Number of Warrants ------------- WARRANTS -- 0.0% Rentech, Expires 04/25/12 (F) (G) (H)* 13,800 10 Titanium Asset Management, Expires 06/21/11* 105,000 111 -------------- Total Warrants (Cost $--) ($ Thousands) 121 -------------- Number of Rights ------------- RIGHTS -- 0.0% Esmark, Expires 11/27/07* 114,600 28 -------------- Total Rights (Cost $--) ($ Thousands) 28 -------------- CONVERTIBLE BOND -- 0.1% Nova BioSource CV to 273.2240 10.000%, 09/30/12 $ 1,461 1,461 -------------- Total Convertible Bond (Cost $1,461) ($ Thousands) 1,461 -------------- - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CASH EQUIVALENTS -- 25.9% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 67,090,852 $ 67,091 SEI Liquidity Fund L.P., 5.110%++** (C) 519,304,393 519,304 -------------- Total Cash Equivalents (Cost $586,395) ($ Thousands) 586,395 -------------- U.S. TREASURY OBLIGATION (A) (D) -- 0 2% U.S. Treasury Bill 3.023%, 02/21/08 $ 4,714 4,682 -------------- Total U.S. Treasury Obligation (Cost $4,682) ($ Thousands) 4,682 -------------- Total Investments -- 123.1% (Cost $2,752,592) ($ Thousands) $ 2,788,229 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- NUMBER OF UNREALIZED TYPE OF CONTRACTS EXPIRATION DEPRECIATION CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- Russell 2000 Index E-Mini 315 Dec-2007 $ (469) S&P Mid 400 Index E-Mini 268 Dec-2007 (164) ------------- $ (633) ============= Percentages are based on Net Assets of $2,265,093 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007. The total value of securities on loan at November 30, 2007 was $507,766 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan. The total value of such securities as of November 30, 2007 was $528,662 ($ Thousands). (D) The rate reported is the effective yield at time of purchase. (E) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. (F) Securities considered illiquid. The total value of such securities as of November 30, 2007 was $7,485 ($ Thousands) and represented 0.32% of Net Assets. (G) Security fair valued using methods determined in good faith by the Valuation Committee of the Board of Trustees. The total value of such securities as of November 30, 2007 was $7,485 ($ Thousands) and represented 0.32% of Net Assets. (H) This security considered restricted. The total value of such securities as of November 30, 2007 was $7,485 ($ Thousands) and represented 0.32% of Net Assets. ADR -- American Depositary Receipt Cl -- Class CV -- Convertible Security LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note PIPE -- Private Investment in Public Entity Ser -- Series Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 68 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 International Equity Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Financials 20.0% Materials 11.4% Industrials 10.7% Consumer Discretionary 9.4% Mortgage-Backed Securities 7.7% Energy 7.2% Telecommunication Services 6.8% Short-Term Investments 6.3% Information Technology 5.3% Consumer Staples 4.8% Health Care 4.3% Utilities 3.9% Asset-Backed Securities 1.0% U.S. Treasury Obligations 0.5% U.S. Government Agency Obligations 0.4% Commercial Paper 0.3% Rights 0.0% Purchased Options 0.0% Exchange Traded Funds 0.0% Warrants 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 89.1% AUSTRALIA -- 4.8% AED Oil* 20,300 $ 77 Amcor 95,281 577 AMP 73,135 656 Asciano Group 37,007 243 Australia & New Zealand Banking Group 40,500 1,009 Australian Infrastructure Fund (B) 275,500 804 Babcock & Brown (B) 14,403 330 BHP Billiton (B) 290,044 11,025 BlueScope Steel 214,800 1,871 Brambles 96,110 1,051 Centro Properties Group+ 18,524 90 Challenger Financial Services Group (B) 384,249 1,883 Coca-Cola Amatil 8,918 79 Commonwealth Bank of Australia 29,400 1,551 CSL 40,061 1,235 CSR 210,800 567 Dominion Mining 1,000 4 Downer EDI 87,030 380 Felix Resources 8,700 62 Flight Centre 42,600 1,102 Fortescue Metals Group 3,000 150 Foster's Group 214,500 1,195 Goodman Fielder 286,390 495 Independence Group 1,147 8 ING Industrial Fund+ (B) 235,400 558 John Fairfax Holdings 242,700 1,017 Jubilee Mines (B) 14,900 303 Leighton Holdings (B) 50,800 2,729 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Macquarie Airports (B) 1,032,219 $ 3,962 Macquarie Group (B) 18,501 1,314 Macquarie Infrastructure Group 788,581 2,246 Minara Resources 19,400 107 Mincor Resources 15,300 61 Mirvac Group+ 74,783 380 National Australia Bank 108,200 3,665 Newcrest Mining 90,960 2,716 OneSteel 29,400 173 Origin Energy 58,800 452 Pacific Brands 867,868 2,395 Qantas Airways 444,107 2,298 QBE Insurance Group 254,509 7,297 Rio Tinto (B) 11,300 1,451 Sally Malay Mining 19,500 88 Santos 63,200 799 Seven Network (B) 122,200 1,459 Sims Group (B) 11,600 279 Suncorp-Metway 5,796 96 TABCORP Holdings (B) 5,400 73 Telstra 370,706 1,531 Telstra (B) 904,300 2,519 Toll Holdings 75,441 915 Wesfarmers Limited* 4,826 185 Westfield Group+ 65,746 1,189 Westpac Banking 62,178 1,558 Woolworths (B) 153,521 4,596 WorleyParsons 48,458 2,146 Zinifex 39,900 510 -------------- 77,511 -------------- AUSTRIA -- 0.7% bwin Interactive Entertainment (B)* 8,700 303 Immoeast* 14,935 162 IMMOFINANZ 53,900 567 OMV 67,589 4,817 Raiffeisen International Bank Holding (B) 5,341 871 Shoeller-Bleckmann Oilfield Equipment 2,900 267 Telekom Austria 20,000 587 Voestalpine 44,591 3,273 Wienerberger 5,900 335 -------------- 11,182 -------------- BELGIUM -- 1.2% Belgacom (B) 16,720 874 Compagnie Maritime Belge 26,300 2,360 D'ieteren 1,200 465 Delhaize Group 9,900 865 Dexia 52,099 1,425 Fortis 145,012 3,897 Fortis (Netherlands Line) 63,384 1,702 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 69 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Gimv 10,800 $ 791 InBev 7,100 624 KBC Groep 5,505 768 Solvay 7,465 1,110 UCB 13,092 624 Umicore 17,700 4,156 -------------- 19,661 -------------- BRAZIL -- 0.1% Gerdau ADR 38,925 1,094 Uniao de Bancos Brasileiros GDR 7,200 1,078 -------------- 2,172 -------------- CANADA -- 2.6% Barrick Gold 140,300 5,680 Bombardier, Cl B 158,300 958 Cameco 65,131 2,702 Canadian Imperial Bank of Commerce 14,900 1,324 Canadian National Railway 10,200 494 Canadian Natural Resources 14,600 948 Eastern Platinum* 519,550 1,414 EnCana 37,900 2,461 Fairfax Financial Holdings 1,900 551 Gerdau Ameristeel 86,800 1,098 HudBay Minerals* 22,400 482 Inmet Mining* 10,300 958 Methanex 14,400 428 Nexen 1 -- Petro-Canada 17,600 850 Potash Saskatchewan 45,200 5,372 Power Corp of Canada 12,300 498 Research In Motion 43,990 5,007 Rogers Communications, Cl B 77,440 3,220 Royal Bank of Canada 27,400 1,453 Shoppers Drug Mart 9,100 499 Suncor Energy 10,800 1,033 Teck Cominco, Cl B 32,500 1,245 TELUS 16,991 787 Toronto-Dominion Bank 20,600 1,546 -------------- 41,008 -------------- CHINA -- 0.4% Alibaba.com* 47,000 241 China Life Insurance 468,500 2,551 China Petroleum & Chemical, Cl H 1,106,000 1,665 China Shenhua Energy 89,000 528 Industrial & Commercial Bank of China, Cl H 739,000 585 Tencent Holdings 100,000 747 -------------- 6,317 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CYPRUS -- 0.2% Marfin Popular Bank 262,250 $ 3,557 -------------- CZECH REPUBLIC -- 0.2% CEZ 38,600 2,858 -------------- DENMARK -- 1.0% A P Moller - Maersk, Cl A 84 989 A P Moller - Maersk, Cl B (B) 552 6,595 Carlsberg, Cl B 12,514 1,599 Danisco 5,314 393 Danske Bank 38,135 1,535 East Asiatic 5,785 397 H Lundbeck 5,400 156 Novo-Nordisk, Cl B 11,150 1,420 Sydbank 2,327 98 Vestas Wind Systems 22,850 2,177 -------------- 15,359 -------------- FINLAND -- 1.7% Kemira 16,100 322 Kone, Cl B 943 71 Konecranes 8,695 334 Nokia 444,221 17,781 Nokia ADR 4,200 165 Nokian Renkaat 18,500 707 OKO Bank, Cl A 41,167 816 Outokumpu 24,944 806 Rautaruukki 9,200 436 Sampo, Cl A 50,967 1,498 Stora Enso, Cl R (B) 135,800 2,245 UPM-Kymmene 86,976 1,842 Wartsila, Cl B 8,900 683 -------------- 27,706 -------------- FRANCE -- 8.5% Accor 5,386 457 Air France-KLM 52,724 1,902 Air Liquide 8,472 1,234 Alstom 4,397 989 April Group 4,600 297 Arkema* 15,548 988 Atos Origin* 1,773 101 AXA (B) 86,021 3,527 BNP Paribas 128,894 14,596 Bouygues 44,619 4,009 Capgemini 23,300 1,360 Carbone Lorraine 3,300 243 Carrefour 6,300 489 Casino Guichard Perrachon 5,360 592 Christian Dior (B) 11,200 1,469 Cie de Saint-Gobain 48,221 4,760 Ciments Francais 4,100 688 - -------------------------------------------------------------------------------- 70 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CNP Assurances 2,759 $ 344 Compagnie Generale de Geophysique* 11,650 3,507 Compagnie Generale des Etablissements Michelin, Cl B (B) 34,500 4,103 Credit Agricole (B) 148,309 5,229 Dassault Systemes 11,855 698 Electricite de France 3,900 476 Financiere de L'Odet 552 252 France Telecom 231,154 8,805 Groupe Danone 20,006 1,770 L'Oreal 20,429 2,847 Lafarge 19,169 3,063 Lagardere S.C.A. 31,866 2,566 Natixis 3,022 61 Nexans 3,400 457 PagesJaunes Groupe 14,600 321 Pernod-Ricard 1,100 244 Peugeot 46,215 3,602 Publicis Groupe 9,200 336 Renault 41,445 6,050 Rhodia 12,600 447 Sanofi-Aventis 153,656 14,663 Sanofi-Aventis (Germany Line) 822 78 Schneider Electric 18,233 2,553 SCOR 17,175 448 Sequana Capital 334 11 Societe Generale 46,353 7,184 Suez* 15,630 1,043 Technip 7,200 589 Thales 14,901 894 Thomson 37,800 590 Total 183,656 14,889 Veolia Environnement 21,173 1,963 Vinci 77,220 6,174 Vivendi 57,857 2,666 -------------- 136,624 -------------- GERMANY -- 8.9% Allianz 67,383 13,946 Altana 14,254 356 BASF 71,503 9,946 Bayer 146,689 12,131 Bayerische Motoren Werke 31,200 1,910 Commerzbank 75,906 3,019 Continental 9,500 1,240 DaimlerChrysler 144,815 14,784 Deutsche Bank* 55,254 7,282 Deutsche Beteiligungs 23,100 782 Deutsche Boerse (B) 15,100 2,842 Deutsche Lufthansa 138,471 3,750 Deutsche Telekom 69,600 1,543 E.ON 67,831 13,871 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Fresenius Medical Care 83,350 $ 4,676 Gildemeister 9,200 233 Heidelberger Druckmaschinen 1,587 50 Henkel 986 50 Hochtief 9,300 1,231 Hypo Real Estate Holding (B) 31,779 1,690 Infineon Technologies* 89,000 1,065 KSB 129 94 Lanxess 1,956 91 MAN 4,378 707 MTU Aero Engines Holding 1,132 61 Muenchener Rueckversicherungs 34,082 6,229 Norddeutsche Affinerie (B) 79,900 2,715 Rheinmetall 1,198 100 RWE 34,203 4,688 Salzgitter 22,887 3,660 SAP 14,948 767 SGL Carbon* 46,300 2,614 Siemens 82,354 12,538 Software 9,800 801 Suedzucker (B) 16,322 357 ThyssenKrupp 76,679 4,536 Volkswagen (B) 17,540 4,218 Vossloh 15,700 1,705 Wincor Nixdorf 6,752 583 -------------- 142,861 -------------- GREECE -- 0.2% Alpha Bank 12,490 426 Coca Cola Hellenic Bottling 12,219 520 Hellenic Telecommunications Organization 39,000 1,415 OPAP 3,849 150 -------------- 2,511 -------------- HONG KONG -- 2.9% Bank of East Asia 179,100 1,089 BOC Hong Kong Holdings 249,000 651 Cheung Kong Holdings 66,000 1,240 China Mobile 521,300 9,401 China Netcom Group 328,000 1,049 China Oriental Group 353,000 245 Chinese Estates Holdings 265,100 517 CLP Holdings 168,000 1,138 Dah Sing Banking Group* 3,000 7 Dairy Farm International Holdings 11,700 54 Emperor International Holdings Limited* 14,000 6 Esprit Holdings 78,800 1,182 Great Eagle Holdings 249,300 961 Guoco Group 43,100 579 Hang Lung Group 50,300 287 Hang Lung Properties 86,800 394 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 71 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Hang Seng Bank 42,600 $ 812 Hong Kong & China Gas 193,600 572 Hong Kong Exchanges and Clearing 188,200 5,715 Hongkong & Shanghai Hotels 364,000 628 HongKong Electric Holdings 351,600 1,836 Hongkong Land Holdings 270,000 1,339 Hopewell Holdings 290,600 1,325 Hopson Development Holdings 42,000 131 Hutchison Telecommunications International 207,900 292 Hutchison Whampoa 18,000 213 Jardine Matheson Holdings (B) 5,200 145 Jardine Strategic Holdings 1,000 16 Li & Fung 77,200 307 Miramar Hotel & Investment 3,000 5 New World China Land (B) 253,100 264 New World Development (B) 582,400 2,218 Orient Overseas International 11,000 84 Pacific Century Premium Developments 325,000 108 Sea Holdings 4,000 3 Singamas Container Holdings (B) 1,523,500 720 Sino Land 134,000 473 Sinolink Worldwide Holdings 596,000 145 Solomon Systech International 3,266,800 277 Sun Hung Kai 507,000 690 Sun Hung Kai Properties 232,900 4,822 Swire Pacific, Cl A 125,600 1,691 Tian An China Investment 195,500 292 Transport International Holdings 25,200 114 Truly International Holdings 4,000 10 USI Holdings 22,000 17 Vtech Holdings 60,200 534 Wharf Holdings 336,900 1,986 Wheelock 228,800 735 Wing On International 7,000 12 -------------- 47,331 -------------- INDIA -- 0.2% Reliance Industries GDR (F) 23,050 3,371 -------------- IRELAND -- 0.3% Allied Irish Banks 45,000 1,010 CRH 58,761 2,227 DCC 28,300 706 Irish Life & Permanent 19,800 394 Total Produce 24,239 24 -------------- 4,361 -------------- ISRAEL -- 0.3% Teva Pharmaceutical Industries ADR 112,200 5,008 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- ITALY -- 3.2% Aedes 56,800 $ 315 AEM (B) 363,400 1,531 Arnoldo Mondadori Editore (B) 34,000 285 Banca Intesa 369,271 2,954 Banche Popolari Unite 10,733 307 Banco Popolare (B) 7,262 164 Beni Stabili 1,271,400 1,603 Buzzi Unicem (B) 50,900 1,416 Cementir 46,530 443 Danieli 19,800 646 Ducati Motor Holding 739,300 1,895 Enel (B) 286,669 3,446 ENI 305,599 10,932 Fiat 267,224 7,362 Fiat RNC 76,810 1,718 Fondiaria-Sai 20,063 882 IFIL - Investments (B) 484,943 5,026 Immobiliare Grande Distribuzione 116,700 407 Indesit (B) 42,400 716 Iride 9,076 33 Italcementi 35,800 744 Italmobiliare 6,800 658 MARR 49,200 555 Mediaset 1,339 13 Pirelli & C 480,000 573 Saipem 6,700 270 Telecom Italia 671,626 2,142 Telecom Italia RNC 548,084 1,373 UniCredito Italiano 299,937 2,565 -------------- 50,974 -------------- JAPAN -- 17.3% Aderans 200 3 Advantest (B) 12,000 341 Aeon 160,800 2,456 Aioi Insurance 81,000 449 Aisin Seiki 71,000 2,861 All Nippon Airways (B) 12,000 47 Amada 53,600 488 AOC Holdings 44,200 712 Aoyama Trading 29,000 739 Asahi Breweries 38,600 671 Asahi Glass 49,000 680 Asahi Kasei 92,000 662 Astellas Pharma 15,200 677 Atsugi (B) 798,100 1,065 Autobacs Seven 26,700 575 Bank of Kyoto 88,600 1,130 Bank of the Ryukyus 46,200 636 Belluna 2,850 23 Bridgestone 85,300 1,626 Canon 48,701 2,551 - -------------------------------------------------------------------------------- 72 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Casio Computer 12,100 $ 154 Cawachi 1,700 46 Chiba Bank 10,000 86 Chukyo Bank 1,000 3 Circle K Sunkus 6,400 94 Citizen Watch (B) 41,000 438 CMK 119,200 880 Coca-Cola Central Japan 2 15 Coca-Cola West Holdings (B) 22,900 521 COMSYS Holdings 27,000 222 Cosmo Oil 343,800 1,407 Cosmos Initia 10,000 29 Credit Saison 4,300 123 Daiei 1,850 11 Daimei Telecom Engineering 73,100 569 Dainippon Ink and Chemicals 127,000 637 Dainippon Screen Manufacturing 32,000 180 Dainippon Sumitomo Pharma 16,000 130 Daishi Bank 1,000 4 Daito Trust Construction 2,300 110 Daiwa House Industry 36,000 478 Denso 9,500 388 East Japan Railway 65 538 Eighteenth Bank 21,000 76 Eizo Nanao 900 24 Elpida Memory (B)* 22,100 741 FamilyMart 2,900 86 Fanuc 26,100 2,718 Fields 14 19 Fuji Electric Holdings 75,000 277 Fuji Fire & Marine Insurance 52,000 166 Fuji Heavy Industries 83,000 412 FUJIFILM Holdings 61,800 2,730 Fujitsu 292,000 2,045 Fukuyama Transporting (B) 151,000 637 Futaba 4,900 102 Gunma Bank 205,100 1,500 Gunze 150,800 631 Hachijuni Bank 24,000 190 Hankyu Holdings 188,000 873 Heiwa 12,200 103 Higashi-Nippon Bank 2,000 7 Hirose Electric 3,300 371 HIS 400 8 Hitachi 465,100 3,262 Hitachi Cable 71,000 458 Hitachi Maxwell 11,400 144 Hokkaido Electric Power 33,500 738 Honda Motor 138,600 4,698 Hoya 44,800 1,559 Hyakugo Bank 16,000 94 Ibiden 34,500 2,715 Idemitsu Kosan 11,300 1,271 Inpex Holdings 117 1,192 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Itochu 350,100 $ 3,674 Japan Airlines 29,000 69 Japan Steel Works 386,890 5,647 Japan Tobacco 909 5,146 JFE Holdings 90,200 4,920 JGC 48,000 887 Joshin Denki (B) 60,400 494 Joyo Bank (B) 8,000 48 JS Group 9,500 152 Kagoshima Bank 2,000 14 Kamigumi 31,000 241 Kaneka 33,000 273 Kansai Electric Power 53,000 1,362 Kanto Tsukuba Bank 103,200 703 Kawasaki Kisen Kaisha 50,000 593 KDDI 7 50 Keyence 3,300 766 Kinden 1,000 8 Kirin Brewery 37,000 583 KK DaVinci Advisors* 55 55 Kobe Steel 192,000 628 Komatsu 56,200 1,697 Komori 20,600 488 Konica Minolta Holdings 7,500 142 Kubota 8,000 59 Kumagai Gumi (B) 232,800 290 Kuraray 32,000 393 Kyocera 2,300 206 Kyorin* 2,000 23 Kyowa Exeo 11,000 84 Kyowa Hakko Kogyo (B) 23,000 260 Kyushu Electric Power 62,900 1,707 Leopalace21 3,100 91 Maeda Road Construction 11,000 91 Makita 8,900 396 Marubeni 101,000 769 Matsushita Electric Industrial 141,000 2,841 Mazda Motor 113,000 608 Mie Bank 1,000 5 Millea Holdings 56,100 1,967 Mitsubishi 348,000 9,976 Mitsubishi Chemical Holdings 311,500 2,488 Mitsubishi Estate 116,100 3,109 Mitsubishi Gas Chemical 30,000 310 Mitsubishi Heavy Industries 206,000 994 Mitsubishi Materials 195,600 980 Mitsubishi Paper Mills (B) 380,100 860 Mitsubishi Tanabe Pharma 27,000 260 Mitsubishi UFJ Financial Group 628,240 6,168 Mitsui 228,400 5,209 Mitsui Chemicals 280,000 2,040 Mitsui Mining & Smelting 72,000 307 Mitsui OSK Lines 328,000 4,882 Mitsui Sumitomo Insurance 58,900 640 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 73 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Mizuho Financial Group 389 $ 2,087 Murata Manufacturing 11,880 693 Nafco 300 6 Nagase 13,000 146 Namco Bandai Holdings 74,300 1,223 NEC 165,000 772 NGK Spark Plug 26,000 459 Nichicon 79,400 844 Nikon 37,400 1,163 Nintendo 22,695 13,810 Nippo 87,300 625 Nippon Beet Sugar Manufacturing (B) 175,100 382 Nippon Electric Glass 26,700 446 Nippon Express 10,000 51 Nippon Konpo Unyu Soko 70,700 924 Nippon Mining Holdings 427,900 3,148 Nippon Oil 167,000 1,379 Nippon Sheet Glass 64,000 349 Nippon Shokubai 23,000 222 Nippon Steel 559,100 3,352 Nippon Telegraph & Telephone (B) 1,228 5,591 Nippon Yusen 44,000 379 Nissan Motor 470,160 5,362 Nissay Dowa General Insurance* 3,000 15 Nisshin Oillio Group 17,000 65 Nisshin Steel 150,000 557 Nisshinbo Industries (B) 120,800 1,608 Nitto Kogyo 4,700 57 Nomura Holdings 52,000 932 NSK 9,000 86 NTT DoCoMo 1,394 2,199 Obayashi 90,000 455 Odakyu Electric Railway (B) 81,800 593 Ohara 100 2 Oita Bank 1,000 6 Oki Electric Industry (B) 467,000 791 Okumura (B) 178,200 814 Olympus 11,000 450 Omron 51,000 1,315 Onward Kashiyama 22,000 239 ORIX 27,600 5,621 Plenus 1,500 23 Rakuten* 508 260 Ricoh 102,000 1,922 Riso Kagaku 3,300 57 Rohm 7,000 641 Sankyo 15,200 685 Sanwa Shutter 50,000 250 Sega Sammy Holdings (B) 29,500 376 Seiko Epson 22,000 488 Seino Transportation 25,000 183 Sekisui Chemical 118,000 806 Sekisui House (B) 139,000 1,774 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Senshukai 3,500 $ 36 SFCG 4,200 630 Sharp 157,000 2,576 Shin-Etsu Chemical 7,000 415 Shinsei Bank (B) 163,000 582 Shiseido 12,000 287 Showa 7,100 60 Showa Shell Sekiyu 57,400 654 SMC 9,900 1,144 Softbank (B) 253,000 5,805 Sojitz 131,700 515 Sompo Japan Insurance 6,000 58 Sony 129,900 7,038 Sony Financial Holdings 112 424 Stanley Electric (B) 2,900 71 Sumitomo 222,000 3,302 Sumitomo Chemical 298,600 2,541 Sumitomo Electric Industries 22,180 342 Sumitomo Forestry 18,000 131 Sumitomo Heavy Industries 26,000 280 Sumitomo Metal Industries 179,600 790 Sumitomo Metal Mining 46,000 946 Sumitomo Mitsui Financial Group (B) 1,073 9,199 Suzuken 7,500 247 Suzuki Motor 67,300 2,190 T&D Holdings 12,300 711 Taisho Pharmaceutical (B) 34,000 667 Takeda Pharmaceutical 25,400 1,626 Takefuji 4,990 128 Teijin 111,000 480 Terumo 2,600 132 TKC 2,700 48 Toagosei 377,100 1,244 Tochigi Bank Limited* 1,000 6 Toda (B) 345,000 1,838 Tokai Rika 14,200 428 Tokyo Electric Power 92,300 2,521 Tokyo Electron 6,400 393 Tokyo Gas 84,100 419 Tokyo Ohka Kogyo 2,700 61 Tokyu 83,400 582 Topy Industries 23,000 62 Toshiba (B) 598,400 4,866 Toshiba TEC 4,000 27 Tosoh 59,000 288 Toyo Seikan Kaisha 44,800 784 Toyota Auto Body 900 15 Toyota Industries 21,400 895 Toyota Motor 198,900 11,189 Trend Micro* 28,000 1,128 Trusco Nakayama 1,100 17 TV Asahi (B) 104 163 Unicharm 8,500 550 UNY 65,000 575 - -------------------------------------------------------------------------------- 74 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- USS 1,220 $ 79 Yahoo! Japan 3,348 1,609 Yamada Denki 17,470 2,018 Yamaha 12,300 298 Yamaha Motor 24,900 678 Yamato Transport 62,400 871 Yaskawa Electric 7,000 92 Yokogawa Bridge (B) 60,600 349 Yokohama Rubber 181,600 1,123 Yutaka Giken 1,100 31 Zeon 10,000 66 -------------- 277,958 -------------- JERSEY -- 0.0% Meinl European Land* 3,573 52 -------------- LUXEMBOURG -- 0.5% ArcelorMittal 85,344 6,323 Colt Telecom Group 58,047 218 Oriflame Cosmetics SDR 10,035 610 SES Global FDR (Paris Exchange) 36,186 892 -------------- 8,043 -------------- MEXICO -- 0.5% America Movil ADR, Ser L 112,355 6,928 Cemex ADR* 12,900 369 -------------- 7,297 -------------- NETHERLANDS -- 4.5% Aegon 58,110 1,042 Akzo Nobel (B) 110,521 8,501 ASML Holding 6,952 242 Buhrmann 83,000 738 CSM 1,254 44 European Aeronautic Defense and Space (B) 22,063 711 Fugro 6,198 511 Heineken 8,005 527 Heineken Holding 9,336 525 ING Groep (B) 359,931 14,016 Koninklijke Ahold 171,964 2,451 Koninklijke BAM Groep 8,614 207 Koninklijke DSM 45,086 2,251 Randstad Holdings* 5,570 265 Reed Elsevier 1,137 21 Royal Dutch Shell, Cl A 309,820 12,538 Royal Dutch Shell, Cl A (GBP) 143,534 5,802 Royal Dutch Shell, Cl B 136,714 5,487 Royal KPN 63,813 1,177 Smit Internationale 3,100 313 TNT 24,172 993 Unilever (B) 247,824 8,785 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Vedior 230,600 $ 5,754 -------------- 72,901 -------------- NEW ZEALAND -- 0.1% Air New Zealand (B) 427,400 590 Fletcher Building 90,800 825 Infratil 150,000 322 Telecom of New Zealand (B) 111,924 370 -------------- 2,107 -------------- NORWAY -- 0.4% DnB 87,822 1,376 Ementor* 171,500 1,203 Norsk Hydro 20,100 277 Orkla 28,900 523 Statoil 50,500 1,639 Telenor 62,100 1,442 TGS Nopec Geophysical* 1,995 28 -------------- 6,488 -------------- POLAND -- 0.0% Polski Koncern Naftowy Orlen 21,700 463 -------------- PORTUGAL -- 0.3% Banco Comercial Portugues 138,600 608 Banco Espirito Santo 55,716 1,299 Cimpor Cimentos de Portugal 42,586 381 Energias de Portugal 237,859 1,610 Jeronimo Martins 39,800 321 Portugal Telecom 3,385 46 PT Multimedia Servicos de Telecomunicacoes e Multi 120 2 Sonae 141,556 426 Sonae Industria* 6,834 78 -------------- 4,771 -------------- RUSSIA -- 0.1% LUKOIL Sponsored ADR 7,300 625 OAO Gazprom ADR 22,600 1,191 -------------- 1,816 -------------- SINGAPORE -- 0.8% Allgreen Properties (B) 663,200 738 CapitaLand 158,000 764 Cosco Singapore 24,000 118 DBS Group Holdings 54,000 750 Flextronics International* 600 7 Fraser and Neave 69,000 277 Ho Bee Investment 91,000 93 Hong Leong Finance 196,900 512 Hotel Grand Central 34,350 24 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 75 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Hotel Plaza 42,000 $ 55 Jardine Cycle & Carriage 47,044 680 K1 Ventures 121,000 26 Keppel 124,000 1,148 Kim Eng Holdings 371,100 577 Mapletree Logistics Trust+ 1,358,300 995 MCL Land 2,000 3 Metro Holdings 16,000 12 NatSteel 10,000 10 Neptune Orient Lines 26,000 75 Parkway Holdings 23,000 60 SembCorp Industries 86,000 333 Singapore Airlines 27,200 337 Singapore Exchange 178,600 1,741 Singapore Petroleum 103,000 541 Singapore Press Holdings 82,000 257 Singapore Technologies Engineering 160,000 418 SP Chemicals 56,000 39 United Overseas Bank 71,100 973 UOB-Kay Hian Holdings 32,000 48 Venture 14,000 122 Wheelock Properties S (B) 285,000 424 Wing Tai Holdings (B) 732,200 1,331 -------------- 13,488 -------------- SOUTH AFRICA -- 0.4% Harmony Gold Mining* 45,600 490 Harmony Gold Mining ADR* 7,200 75 Mondi 5,057 43 Sanlam 379,530 1,305 Sasol 82,626 4,182 -------------- 6,095 -------------- SOUTH KOREA -- 0.4% Honam Petrochemical 6,500 850 Hynix Semiconductor 14,500 408 Hyundai Mobis 8,020 751 Industrial Bank of Korea 26,750 466 Kookmin Bank 9,600 692 POSCO 700 446 Samsung Electronics 555 340 Samsung Electronics GDR (F) 3,542 1,080 SK Telecom 360 97 SK Telecom ADR (B) 31,000 982 -------------- 6,112 -------------- SPAIN -- 2.9% Acerinox (B) 10,993 297 ACS Actividades Construcciones y Servicios (B) 23,450 1,514 Banco Bilbao Vizcaya Argentaria 208,828 5,214 Banco Santander Central Hispano 394,053 8,468 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Cementos Portland Valderrivas 3,200 $ 357 Ebro Puleva (B) 21,130 415 Fomento de Construcciones y Contratas 2,000 170 Gas Natural SDG (B) 85,213 5,262 Gestevision Telecinco (B) 19,182 520 Iberdrola 267,839 4,431 Inditex 9,179 642 Obrascon Huarte Lain* 420 17 Repsol* 215,702 7,972 Sol Melia (B) 25,200 422 Telefonica (B)* 313,066 10,528 Union Fenosa 10,148 705 -------------- 46,934 -------------- SWEDEN -- 1.5% Assa Abloy, Cl B 52,500 1,093 Atlas Copco, Cl A 68,010 1,001 Boliden 41,864 591 D Carnegie 13,400 258 Electrolux, Ser B 45,400 766 Hennes & Mauritz, Cl B 3,125 195 Industrivarden, Cl A 30,900 580 Investor, Cl B 15,200 357 Kinnevik Investment 11,900 290 Sandvik 53,622 972 Skandinaviska Enskilda Banken, Cl A 48,861 1,365 SKF 35,900 634 Ssab Svenskt Stal, Ser A 24,000 659 Svenska Cellulosa, Cl B 124,496 2,222 Svenska Handelsbanken, Cl A 44,872 1,426 Swedish Match 12,577 290 Tele2, Cl B 203,950 4,661 Telefonaktiebolaget LM Ericsson, Cl B 258,906 632 TeliaSonera 364,200 3,478 Trelleborg, Cl B 15,807 352 Volvo, Cl B 130,000 2,218 Wihlborgs Fastigheter 4,606 83 -------------- 24,123 -------------- SWITZERLAND -- 5.4% ABB 93,830 2,757 Adecco 14,100 788 AFG Arbonia-Forster Holdings 1,000 347 Bobst Group 398 28 Bucher Industries 220 55 Clariant (B) 37,000 328 Compagnie Financiere Richemont, Cl A 99,438 6,843 Credit Suisse Group 159,235 9,612 Elektrizitaets-Gesellschaft Laufenburg 360 469 Energiedienst Holding 466 252 Forbo Holding 31 19 - -------------------------------------------------------------------------------- 76 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Helvetia Holding 1,320 $ 444 Holcim 38,410 4,144 Inficon Holding 5,500 935 Nestle 26,612 12,799 Nobel Biocare Holding 2,487 709 Novartis 136,820 7,798 Rieter Holding 616 307 Roche Holding 49,748 9,495 Swatch Group 6,846 375 Swiss Life Holding 5,327 1,500 Swiss Reinsurance 80,671 5,998 Swisscom 4,345 1,655 Syngenta 21,110 5,207 UBS 53,913 2,731 Xstrata 82,258 5,783 Zurich Financial Services 18,015 5,254 -------------- 86,632 -------------- TAIWAN -- 0.3% Compal Electronics 1,032,618 1,192 High Tech Computer GDR 10,140 753 Taiwan Semiconductor Manufacturing 528,229 992 Taiwan Semiconductor Manufacturing ADR 124,987 1,240 -------------- 4,177 -------------- THAILAND -- 0.1% PTT 101,300 1,137 -------------- UNITED KINGDOM -- 16.2% 3i Group 54,511 1,219 Acergy 156,100 3,336 Aegis Group 33,078 76 Alliance & Leicester 32,500 488 Amec 289,250 4,565 Anglo American 135,127 9,130 Antofagasta 23,600 370 ARM Holdings 61,587 168 AstraZeneca 105,106 4,992 AstraZeneca (SEK)* 19,954 954 Autonomy* 140,500 2,307 Aviva 470,693 6,600 BAE Systems 1,294,850 12,247 Balfour Beatty 13,442 135 Barclays 717,391 8,305 Barratt Developments 74,933 717 Bellway 20,698 413 Berkeley Group Holdings 25,800 748 BG Group 17,196 360 BHP Billiton 296,556 9,799 Bovis Homes Group 6,714 87 BP 1,193,936 14,484 Brit Insurance Holdings 46,000 243 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- British Airways* 116,394 $ 817 British American Tobacco 76,585 2,971 British Energy Group 201,000 2,161 British Land+ 76,633 1,448 BT Group 181,349 1,069 Centrica 398,987 2,986 Charter* 17,453 310 Chaucer Holdings 253,700 527 Compass Group 236,000 1,547 Cookson Group 29,077 445 Daily Mail & General Trust 64,357 736 Diageo 246,550 5,541 Dimension Data Holdings 228,000 288 DS Smith 95,000 409 Emap 5,166 88 Enterprise Inns 41,061 449 Firstgroup 208,896 3,050 FKI 168,900 268 Friends Provident 4,580 15 Galliford Try 7,214 19 GKN 122,493 806 GlaxoSmithKline 369,194 9,777 Go-Ahead Group 5,300 270 Greene King 48,500 817 Group 4 Securicor 2,780 12 Hays 73,496 192 HBOS 493,241 8,093 Home Retail Group 331,097 2,362 HSBC Holdings 548,982 9,369 Imperial Tobacco Group 38,796 2,006 Investec 17,180 184 ITV 791,100 1,392 Kazakhmys 56,800 1,571 Laird Group 42,700 514 Legal & General Group 219,861 586 Lloyds TSB Group 95,778 975 LogicaCMG 54,037 138 London Stock Exchange Group 93,980 3,440 Lonmin 6,800 454 Marks & Spencer Group 36,100 433 Michael Page International 37,223 250 Millennium & Copthorne Hotels 72,643 694 Mitchells & Butlers 87,239 1,035 Mondi 48,016 383 National Grid 211,866 3,579 Next 18,964 678 Northern Foods 523,400 1,025 Old Mutual 633,812 2,197 Persimmon 34,500 567 Premier Foods 91,600 377 Prudential 176,829 2,469 Punch Taverns 75,210 1,270 Qxl Ricardo 10,900 381 Reckitt Benckiser Group 32,203 1,914 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 77 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Reed Elsevier 50,130 $ 631 Reuters Group 72,300 886 Rio Tinto 57,328 6,648 Rolls-Royce Group, Cl B 4,203,200 10 Royal & Sun Alliance Insurance Group 715,683 2,185 Royal Bank of Scotland Group 1,514,679 14,295 SABMiller 238,164 6,777 Scottish & Southern Energy 53,370 1,745 Severn Trent 20,500 661 Shire 134,500 3,216 Smith & Nephew 386,650 4,623 St. Ives Group 90,600 464 Stagecoach Group 128,842 654 Standard Chartered 44,832 1,764 Standard Chartered (HKD)* 8,300 309 Standard Life 199,499 1,077 Stolt-Nielsen 39,985 1,002 Tate & Lyle 3,919 36 Taylor Woodrow 505,434 2,136 Tesco 357,700 3,523 Travis Perkins 9,800 268 Trinity Mirror 35,300 246 Tui Travel 32,974 186 Unilever 61,090 2,241 United Utilities 126,289 1,948 Vodafone Group 8,552,017 32,038 Wolseley 65,888 941 WPP Group 63,000 795 Yell Group 140,779 1,206 -------------- 259,608 -------------- Total Common Stock (Cost $1,163,799) ($ Thousands) 1,430,574 -------------- MORTGAGE-BACKED SECURITIES -- 8.3% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 5.9% FHLMC 6.000%, 07/01/21 to 05/01/22 $ 1,893 1,934 FHLMC ARM 5.804%, 01/01/37 6,358 6,461 FHLMC CMO STRIPS, Ser 232, Cl IO, IO 5.000%, 08/01/35 7,575 1,845 FHLMC CMO STRIPS, Ser 233, Cl 12, IO 5.000%, 09/15/35 1,360 296 FHLMC TBA 6.000%, 12/15/18 16,000 16,335 FNMA 5.500%, 02/01/21 13 13 FNMA (H) 4.117%, 01/02/08 2,120 2,113 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA TBA 6.000%, 12/01/18 to 01/01/37 $ 55,000 $ 56,214 5.500%, 01/01/19 to 01/01/37 611 683 FNMA CMO STRIPS, Ser 10, Cl FD (D) 5.481%, 12/25/07 1,399 1,390 FNMA CMO STRIPS, Ser 359, Cl 6, IO 5.000%, 11/01/35 491 111 FNMA CMO STRIPS, Ser 360, Cl 2, IO 5.000%, 08/01/35 8,590 2,097 FNMA CMO STRIPS, Ser 377, Cl 2, IO 5.000%, 10/01/36 16 4 GNMA ARM 6.500%, 12/30/07 to 05/20/34 1,252 1,270 5.500%, 07/20/35 to 06/20/36 966 972 5.250%, 08/20/34 163 165 4.750%, 12/20/33 1,902 1,904 GNMA ARM (I) 6.000%, 06/20/35 508 514 5.500%, 03/20/36 393 395 5.000%, 02/20/36 236 237 -------------- 94,953 -------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 2.4% American Home Mortgage Investment Trust, Ser 2004-3, Cl 2A (D) 6.644%, 03/01/08 2,101 2,067 American Home Mortgage Investment Trust, Ser 2005-1, Cl 6A (D) 5.294%, 12/25/07 3,895 3,871 American Home Mortgage Investment Trust, Ser 2005-4, Cl 5A (D) 5.350%, 12/25/07 2,479 2,462 American Home Mortgage Investment Trust, Ser 2006-1, Cl 2A3 (D) 5.100%, 12/25/07 1,310 1,181 Banc of America Commercial Mortgage, Ser 2006-2, Cl A1 5.611%, 05/10/45 714 721 Banc of America Funding, Ser 2006-A, Cl 2A2 (D) 5.558%, 12/01/07 151 151 Banc of America Mortgage Securities, Ser 2004-10, Cl 2A1 5.000%, 12/25/19 591 586 - -------------------------------------------------------------------------------- 78 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Alternative Loan Trust, Ser 2004-33, Cl 1A1 (D) 5.005%, 12/01/07 $ 481 $ 479 Countrywide Alternative Loan Trust, Ser 2005-69, Cl M3 (D) 5.939%, 12/27/07 225 176 Countrywide Alternative Loan Trust, Ser 2005-IM1, Cl M3 (D) 6.789%, 12/27/07 338 124 Countrywide Alternative Loan Trust, Ser 2006-0A11, Cl M3 (D) 5.219%, 12/30/07 456 445 Countrywide Home Loans, Ser 2004-22, Cl A1 (D) 5.089%, 12/01/07 533 534 Countrywide Home Loans, Ser 2006-HYB1, Cl 1A1 (D) 5.357%, 12/20/07 517 510 Countrywide Home Loans, Ser 2006-HYB2, Cl 1A1 (D) 5.001%, 12/20/07 1,445 1,459 DLSA Mortgage Loan Trust, Ser 2006-AR1, Cl M4 (D) 5.761%, 12/19/07 221 181 DSLA Mortgage Loan Trust, Ser 2004-AR4, Cl B1 (D) 5.286%, 12/19/07 306 290 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl M5 (D) 5.831%, 12/19/07 140 111 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl M7 (D) 6.771%, 12/19/07 140 105 Deutsche Alternatives Securities Mortgage Loan Trust, Ser 2006-AB3, Cl A1 (D) 6.250%, 06/30/36 856 853 First Horizon Alternative Mortgage Trust, Ser 2006-AA6, Cl 2A1 (D) 5.642%, 12/01/07 3,344 3,273 First Horizon Mortgage Pass-Through Trust, Ser 2006-AR3, Cl 1A1 (D) 5.684%, 12/01/07 711 714 GS Mortgage Securities, Ser 2007-GG10, Cl A4 (D) 5.993%, 08/10/45 100 103 Greenpoint Mortgage Funding Trust, Ser 2006-AR1, Cl M3 (D) 5.443%, 12/27/07 300 208 Indymac Mortgage Loan Trust, Ser 2004-AR11, Cl 4A1 (D) 5.785%, 12/01/07 1,582 1,566 Indymac Mortgage Loan Trust, Ser 2004-AR6, Cl 1A (D) 7.498%, 12/01/07 96 96 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- JPMorgan Chase Commercial Mortgage, Ser 2006-CB17, Cl A4 5.429%, 12/12/43 $ 100 $ 100 Lehman Mortgage Trust, Ser 2006-4, Cl 4A1 6.000%, 08/25/21 2,841 2,848 MLCC Mortgage Investors, Ser 2006-1, Cl 1A1 (D) 5.301%, 12/01/07 1,532 1,542 Master Adjustable Rate Mortgages, Ser 2004-6, Cl 2A1 (D) 5.329%, 07/25/34 1,390 1,404 Master Adjustable Rate Mortgages, Ser 2005-2, Cl 3A1 (D) 4.774%, 12/01/07 667 665 Nomura Asset Acceptance, Ser 2004-R1, Cl A1 (F) 6.500%, 03/25/34 324 327 Nomura Asset Acceptance, Ser 2004-R2, Cl A1 (D) (F) 6.500%, 10/25/34 386 388 Nomura Asset Acceptance, Ser 2007-1, Cl 1A1A (G) 5.995%, 12/09/07 1,227 1,231 Residential Accredit Loans, Ser 2005-Q05, Cl M3 (D) 5.673%, 12/25/07 398 341 Residential Accredit Loans, Ser 2005-QA3, Cl NB2 (D) 5.240%, 12/25/07 1,368 1,391 Residential Accredit Loans, Ser 2006-Q01, Cl 2A3 (D) 5.189%, 12/27/07 279 271 Residential Asset Securitization Trust, Ser 2004-IP2, Cl 3A1 (D) 5.248%, 12/25/07 1,326 1,319 Structured Adjustable Rate Mortgage Loan, Ser 2005-16 XS, Cl M2 (D) 5.689%, 12/25/07 200 138 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY4, Cl 1A1 (D) 5.559%, 12/01/07 2,702 2,685 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl HY6 (D) 5.707%, 06/25/37 927 924 Wells Fargo Mortgage Backed Securities Trust, Ser 2004-I, Cl B1 (D) 5.839%, 12/01/07 119 119 -------------- 37,959 -------------- Total Mortgage-Backed Securities (Cost $132,862) ($ Thousands) 132,912 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 79 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- ASSET-BACKED SECURITIES -- 1.1% MORTGAGE RELATED SECURITIES -- 1.1% ACE Securities, Ser 2003-NC1, Cl M (D) 5.653%, 12/25/07 $ 600 $ 563 ACE Securities, Ser 2003-OP1, Cl M1 (D) 5.489%, 12/26/07 250 243 Aames Mortgage Investment Trust, Ser 2005-4, Cl B2 (D) 7.539%, 12/12/07 110 37 Ameriquest Mortgage Securities, Ser 2003-2, Cl M1 (D) 6.139%, 12/25/07 380 339 Argent Securities, Ser 2003-W5, Cl M1 (D) 5.489%, 12/25/07 250 246 Argent Securities, Ser 2003-W9, Cl M1 (D) 5.479%, 12/26/07 343 340 Asset-Backed Securities Home Equity Loan Trust, Ser 2003-HE5, Cl M1 (D) 5.402%, 12/15/07 456 432 Basic Asset Backed Securities Trust, Ser 2006-1, Cl A1 (D) 4.953%, 12/25/07 573 569 Chase Funding Mortgage Loan, Ser 2004-2, Cl 1A3 4.209%, 09/25/26 16 16 Countrywide Asset-Backed Certificates, Ser 2003-5, Cl MV2 (D) 6.389%, 12/25/07 251 230 Countrywide Asset-Backed Certificates, Ser 2005-15, Cl 1AF1 (D) 4.929%, 12/25/07 229 229 Credit Suisse Asset-Backed Mortgage Trust, Ser 2006-1, Cl A1B (D) 5.725%, 12/26/07 332 331 First Franklin Mortgage Loan Asset, Ser 2004-FF10, Cl A2 (D) 5.273%, 12/26/07 26 25 GSAA Home Equity NIM Trust, Ser 2006-2, Cl 2A1 (D) 4.973%, 12/27/07 1,344 1,340 GSAA Home Equity NIM Trust, Ser 2006-HE3N, Cl N1 (F) 5.500%, 05/25/36 67 6 Heat Equity Asset Trust NIM, Ser 2006-1N, Cl A (F) 6.500%, 05/27/36 62 12 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Home Equity Asset Trust, Ser 2003-4, Cl M2 (D) 7.189%, 12/25/07 $ 339 $ 318 Lehman XS Trust, Ser 2005-5N, Cl M4 (D) 6.539%, 12/31/07 525 301 Lehman XS Trust, Ser 2005-7N, Cl M51 (D) 6.039%, 12/31/07 120 70 Lehman XS Trust, Ser 2005-7N, Cl M71 (D) 6.539%, 12/27/07 300 156 Lehman XS Trust, Ser 2005-9N, Cl M4 (D) 6.189%, 12/30/07 170 127 Master Asset Backed Securities Trust, Ser 2006-AB1, Cl A1 (D) 5.013%, 12/27/07 1,312 1,295 Merrill Lynch Mortgage Investors Trust, Ser 2003-HE1, Cl M2 (D) 6.523%, 12/25/07 74 64 Morgan Stanley, Ser 2003-NC10, Cl M1 (D) 5.469%, 12/27/07 573 537 New Century Home Equity Loan Trust, Ser 2004-A, Cl AII3 (D) 4.450%, 12/01/07 119 119 New Century Home Equity Loan Trust, Ser 2005-A, Cl A2 (G) 4.461%, 12/25/07 665 659 Option One Mortgage Loan Trust, Ser 2003-5, Cl M1 (D) 5.439%, 12/23/07 254 233 Option One Mortgage Loan Trust, Ser 2006-1, Cl M10 (D) (F) 7.289%, 12/27/07 60 20 Option One Mortgage Loan Trust, Ser 2006-1, Cl M11 (D) (F) 7.289%, 12/27/07 140 35 Ownit Mortgage Loan, Ser 2006-1, Cl AF1 (G) 5.424%, 12/25/36 708 694 Residential Asset Mortgage Products, Ser 2003-RS11, Cl MII1 (D) 5.603%, 12/25/07 54 48 Residential Asset Mortgage Products, Ser 2006-RZ1, Cl A1 (D) 5.211%, 12/27/07 1,868 1,854 Residential Asset Securities, Ser 2006-EMX2, Cl A1 (D) 4.953%, 12/27/07 450 447 Residential Asset Securities, Ser 2006-KS2, Cl A1 (D) 4.943%, 12/27/07 225 225 - -------------------------------------------------------------------------------- 80 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands)/Shares ($ Thousands) - -------------------------------------------------------------------------------- Resmae Mortgage Loan Trust, Ser 2006-1, Cl A2A (D) (F) 4.889%, 12/25/07 $ 772 $ 762 Resmae Mortgage Loan Trust, Ser 2006-1, Cl A2B (D) (F) 4.939%, 12/25/07 1,400 1,363 SB Finance NIM Trust, Ser 2006-KS4N, Cl N1 (F) 7.500%, 06/25/36 64 19 Sharps SP I LLC NIM Trust, Ser 2005-HE3N, Cl N (F) 5.000%, 05/25/35 96 3 Structured Asset Investment Loan Trust, Ser 2003-BC4, Cl M2 (D) 7.789%, 12/25/07 226 180 Structured Asset Investment Loan Trust, Ser 2005-1, Cl A4 (D) (F) 5.103%, 12/25/07 55 55 Structured Asset Securities, Ser 2005-WF1, Cl A2 (D) 5.331%, 12/25/07 33 33 Terwin Mortgage Trust, Ser 2006-5, Cl 1A2A (D) (F) 5.221%, 12/26/07 2,376 2,281 Terwin Mortgage Trust, Ser 2006-6, Cl 2A1 (D) 4.500%, 06/25/36 342 196 -------------- Total Asset-Backed Securities (Cost $18,523) ($ Thousands) 17,052 -------------- PREFERRED STOCK -- 0.6% BRAZIL -- 0.4% ArcelorMittal 39,650 2,934 Petroleo Brasileiro 33,100 1,339 Usinas Siderurgicas de Minas Gerais, Cl A 43,500 2,225 -------------- 6,498 -------------- GERMANY -- 0.1% Porsche 363 808 -------------- ITALY -- 0.1% Istituto Finanziario Industriale* 47,700 1,700 -------------- SOUTH KOREA -- 0.0% Samsung Electronics 1,400 617 -------------- Total Preferred Stock (Cost $6,762) ($ Thousands) 9,623 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CORPORATE OBLIGATIONS -- 0.5% CONSUMER DISCRETIONARY -- 0.0% Time Warner 6.875%, 05/01/12 $ 425 $ 449 -------------- ENERGY -- 0.1% Dominion Resources 4.750%, 12/15/10 285 285 Exelon Generation 6.950%, 06/15/11 425 448 Weatherford International (F) 5.950%, 06/15/12 175 183 -------------- 916 -------------- FINANCIALS -- 0.4% Capmark Financial Group (F) 6.300%, 05/10/17 50 34 5.875%, 05/10/12 100 78 Cit Group 5.000%, 02/13/14 565 505 Discover Financial Services (F) 6.450%, 06/12/17 100 101 Genworth Financial 5.750%, 06/15/14 310 316 5.650%, 06/15/12 515 528 HSBC Finance 6.375%, 10/15/11 425 437 Istar Financial+ 5.875%, 03/15/16 285 233 Lehman Brothers Holdings MTN 5.750%, 05/17/13 145 146 5.500%, 04/04/16 280 269 Merrill Lynch 6.050%, 05/16/16 225 220 Morgan Stanley 4.750%, 04/01/14 425 405 Residential Capital 8.375%, 06/30/15 75 48 7.500%, 02/22/08 200 132 6.500%, 04/17/13 990 640 SLM MTN (C) (D) 4.660%, 12/17/07 1,856 1,856 Shinsei Finance Cayman (D) (F) 6.418%, 01/29/49 490 430 Washington Mutual Preferred Funding (B) (D) (F) 6.534%, 03/29/49 500 266 -------------- 6,644 -------------- INDUSTRIALS -- 0.0% Lafarge 6.150%, 07/15/11 255 263 US Steel 5.650%, 06/01/13 105 104 -------------- 367 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 81 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount($ Thousands)/ Market Value Description Shares/Contracts ($ Thousands) - -------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 0.0% Vodafone Group 5.350%, 02/27/12 $ 80 $ 81 -------------- Total Corporate Obligations (Cost $9,219) ($ Thousands) 8,457 -------------- U.S. GOVERNMENT AGENCY OBLIGATIONS -- 0.4% FHLMC (H) 4.504%, 03/31/04 50 49 FNMA (A) 5.580%, 03/12/08 250 247 FNMA (A) (H) 4.605%, 03/26/08 100 98 4.504%, 03/28/08 50 49 4.359%, 04/16/08 125 123 4.280%, 05/09/08 649 637 4.262%, 05/07/08 5,326 5,231 -------------- Total U.S. Government Agency Obligations (Cost $6,432) ($ Thousands) 6,434 -------------- EXCHANGE TRADED FUND -- 0.0% UNITED STATES -- 0.0% iShares MSCI EAFE Index Fund* 700 58 -------------- Total Exchange Traded Fund (Cost $55) ($ Thousands) 58 -------------- RIGHTS -- 0.0% Number of Rights ------------- AUSTRALIA -- 0.0% Newcrest Mining, Expires 10/17/07* 0.000%, 12/11/07 53 270 -------------- SINGAPORE -- 0.0% Hotel Plaza, Expires 11/28/08* 0.000%, 12/22/07 42 3 -------------- Total Rights (Cost $0) ($ Thousands) 273 -------------- PURCHASED OPTIONS -- 0.0% UNITED STATES -- 0.0% July 2008 U.S. Ten Year Treasury Call, Expires 06/16/08, Strike Price $95* 28 89 -------------- Total Purchased Options (Cost $12) ($ Thousands) 89 -------------- - -------------------------------------------------------------------------------- Face Amount ($ Thousands)/ Market Value Description Shares/Contracts ($ Thousands) - -------------------------------------------------------------------------------- EQUITY LINKED WARRANT -- 0.0% HONG KONG -- 0.0% Tian An China Investments, Expires 12/21/07* 196 $ 28 -------------- Total Equity Linked Warrants (Cost $0) ($ Thousands) 28 -------------- CASH EQUIVALENTS -- 6.8% UNITED STATES -- 6.8% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%**++ 6,659,789 6,660 SEI Liquidity Fund, L.P., 5.110%**++ (C) 102,964,379 102,964 -------------- Total Cash Equivalents (Cost $109,624) ($ Thousands) 109,624 -------------- U.S. TREASURY OBLIGATIONS (E) -- 0.5% U.S. Treasury Bills 3.023%, 02/21/08 $ 4,025 3,998 3.715%, 12/20/07 (A) 450 449 U.S. Treasury Inflationary Index Notes (B) 2.375%, 04/15/11 3,341 3,484 -------------- Total U.S. Treasury Obligations (Cost $7,875) ($ Thousands) 7,931 -------------- COMMERCIAL PAPER (E) -- 0.3% Rabobank USA Finance 4.670%, 12/04/07 5,000 4,997 -------------- Total Commercial Paper (Cost $4,997) ($ Thousands) 4,997 -------------- Total Investments -- 107.6% (Cost $1,460,160) ($ Thousands) $ 1,728,052 ============== WRITTEN OPTION -- 0.0% UNITED STATES -- 0.0% July 2008 U.S. Ten Year Treasury Call, Expires 06/16/08, Strike Price: $95.5* (28) (56) -------------- Total Written Option (Premiums Received $(4)) ($ Thousands) $ (56) -------------- - -------------------------------------------------------------------------------- 82 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (See Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION/ TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- 90-Day Euro$ (11) Mar-2008 $ (16) 90-Day Euro$ (23) Mar-2009 (76) 90-Day Euro$ (33) Mar-2010 (90) 90-Day Euro$ (21) Mar-2011 (46) 90-Day Euro$ 8 Mar-2012 9 90-Day Euro$ 27 Jun-2008 35 90-Day Euro$ 58 Jun-2009 160 90-Day Euro$ 130 Jun-2010 (297) 90-Day Euro$ 17 Jun-2011 21 90-Day Euro$ 4 Jun-2012 4 90-Day Euro$ (30) Sep-2008 (100) 90-Day Euro$ 58 Sep-2009 181 90-Day Euro$ (37) Sep-2010 (87) 90-Day Euro$ 19 Sep-2011 23 90-Day Euro$ 9 Sep-2012 10 90-Day Euro$ (41) Dec-2007 12 90-Day Euro$ (180) Dec-2008 (645) 90-Day Euro$ (34) Dec-2009 (102) 90-Day Euro$ (32) Dec-2010 (74) 90-Day Euro$ 8 Dec-2011 9 Amsterdam Index 33 Dec-2007 16 CAC40 10 Euro 163 Dec-2007 326 DAX Index 51 Dec-2007 412 DJ Euro Stoxx 50 Index 156 Dec-2007 71 Fed Fund 30 day 12 Jan-2007 6 Fed Fund 30 day 1 Mar-2007 1 FTSE 100 Index 286 Dec-2007 690 Hang Seng Index 21 Dec-2007 214 IBEX 35 Plus Index 27 Dec-2007 27 MSCI Sing Index 25 Dec-2007 74 Nikkei 225 Index 17 Dec-2007 (37) OMX Index 242 Dec-2007 111 S&P/MIB Index 17 Dec-2007 14 SPI 200 Index 79 Dec-2007 384 Topix Index 132 Dec-2007 (274) U.S. 2 Year Treasury Note 24 Mar-2007 (15) U.S. 5 Year Treasury Note (12) Dec-2007 (4) U.S. 5 Year Treasury Note 25 Mar-2007 (7) U.S. 10 Year Treasury Note 2 Mar-2007 (2) U.S. Long Treasury Bond (6) Dec-2007 (30) ------------- $ 908 ------------- A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007 is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY TO CURRENCY TO APPRECIATION/ MATURITY DELIVER RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 12/21/07 AUD 1,256 EUR 545 $ 10 12/21/07-04/21/08 AUD 18,969 JPY 1,920,000 754 12/21/07 CAD 37,166 USD 38,270 1,074 12/21/07 CHF 5,895 EUR 3,583 32 12/21/07-05/22/08 CHF 47,500 USD 40,657 (1,700) 12/21/07-05/22/08 CHF 48,400 GBP 20,245 (1,531) 12/21/07-05/22/08 CHF 23,600 NZD 27,512 (125) 12/21/07 EUR 1,746 CHF 2,881 (8) 12/21/07 EUR 5,475 USD 8,017 (22) 12/21/07 EUR 7,399 SEK 68,780 (91) 12/21/07 GBP 2,815 AUD 6,474 (63) 12/21/07-05/22/08 GBP 25,331 JPY 5,788,000 674 12/21/07-03/25/08 GBP 18,382 CHF 43,900 1,307 12/21/07 HKD 112,288 USD 14,448 15 12/21/07-05/22/08 JPY 7,156,000 GBP 31,173 (1,218) 12/21/07-05/22/08 JPY 2,859,000 USD 24,613 (1,381) 12/21/07-04/21/08 JPY 1,920,000 AUD 19,689 (118) 12/21/07 MXP 85,156 USD 7,780 (32) 12/21/07 NZD 547 USD 413 (6) 12/21/07-04/21/08 NZD 24,826 CHF 21,400 174 12/21/07 SEK 38,260 EUR 4,129 70 12/24/07 SGD 5,905 USD 4,093 4 12/17/07 USD 952 DKK 4,786 (10) 12/17/07 USD 41,259 EUR 27,809 (429) - -------------------------------------------------------------------------------- UNREALIZED CURRENCY TO CURRENCY TO APPRECIATION/ MATURITY DELIVER RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 12/17/07 USD 2,396 HKD 18,637 $ (1) 12/21/07 USD 5,326 CAD 4,970 (352) 12/17/07 USD 183 NZD 241 2 12/17/07 USD 1,419 SGD 2,043 (5) 12/21/07-03/26/08 USD 42,401 JPY 4,782,034 899 12/17/07-12/21/07 USD 20,692 AUD 23,441 24 12/17/07-12/21/07 USD 20,692 AUD 23,441 24 12/17/07-12/21/07 USD 89,814 GBP 43,793 181 12/17/07-12/21/07 USD 2,187 NOK 11,981 (26) 12/17/07-12/21/07 USD 5,184 SEK 32,704 (62) 12/21/07-04/21/08 USD 70,476 CHF 80,398 1,025 12/21/07 ZAR 17,346 USD 2,573 27 ------------- $ (884) ============= A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows: - -------------------------------------------------------------------------------- TOTAL RETURN SWAPS - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Deliver payment on the quarterly reset spread from Swiss Market Index plus 25 basis points times the notional amount. Fund pays payment if the return on the spread appreciates over the payment period and receives if the return on the spread depreciates over the payment period. (Counterparty: Bear Stearns) 01/17/08 10,895 CHF $ (428) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 40 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 02/28/08 8,000 (207) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 30 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Merrill Lynch) 01/31/08 15,000 (376) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 50 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 02/28/08 9,000 (233) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 10 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 03/31/08 16,000 (414) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 5 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 01/31/08 10,000 (253) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 75 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Wachovia) 01/31/08 4,000 (103) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 40 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 04/30/08 5,000 (125) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 83 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 80 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 03/31/08 12,000 $ (310) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 50 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 03/31/08 5,000 (129) Receive payment on the monthly reset spread from Bank of America -- CMBS IG 10Yr Index plus 35 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 05/01/08 5,000 (181) Receive payment on the monthly reset spread from Lehman Brothers -- CMBS AAA 8.5 Plus Index plus 15 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 01/01/08 5,000 (194) Receive payment on the monthly reset spread from Lehman Brothers -- CMBS AAA 8.5 Plus Index minus 25 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 03/01/08 9,000 356 Delivers payment on the quarterly reset spread from MSCI EAFE Index minus 20 basis points times the notional amount. Fund receives payment if the return on the spread appreci- ates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bear Stearns) 03/23/08 17,210 426 Delivers payment on the quarterly reset spread from MSCI Japan Net Index plus 20 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 03/24/08 14,935 (628) -------- $ (2,799) ======== - --------------------------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - --------------------------------------------------------------------------------------------------- Fund delivers quarterly payment of 0.1125% (0.450% per annum) times the notional amount of the iTraxx Europe Senior Financials 5 Year Index, Series 8. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Bank of America) 12/20/12 1,250 $ (2) Fund pays quarterly payment of 0.1125% (0.450% per annum) times the notional amount of the iTraxx Europe Senior Financials 5 Year Index, Series 8. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Goldman Sachs) 12/20/12 2,750 (1) Fund pays quarterly payment of 0.0800% (0.320% per annum) times the notional amount of Alcan, Inc., 4.875%, 09/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 03/20/14 650 (2) Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of Alcan, Inc., 4.875%, 09/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 (3) - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.1100% (0.440% per annum) times the notional amount of Autozone, Inc., 5.875%, 10/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 $ (1) Fund pays quarterly payment of 0.1380% (0.550% per annum) times the notional amount of Black & Decker Corp., 7.125%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 (1) Fund pays quarterly payment of 0.0500% (0.200% per annum) times the notional amount of Campbell Soup Co., 4.875%, 10/01/13. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 06/20/14 1,075 2 Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 925 (17) Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 600 (11) Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 11,300 (151) Fund pays quarterly payment of 0.1110% (0.445% per annum) times the notional amount of Darden Restaurants, Inc., 7.125%, 02/01/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 1 Fund pays quarterly payment of 0.2950% (1.180% per annum) times the notional amount of Gap, Inc., 8.800%, 12/15/08. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 (10) Fund pays quarterly payment of 0.0980% (0.390% per annum) times the notional amount of Johnson Controls, Inc., 7.125%, 07/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 (1) Fund pays quarterly payment of 0.0930% (0.370% per annum) times the notional amount of Johnson Controls, Inc., 7.125%, 07/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 (1) Fund pays quarterly payment of 0.1190% (0.475% per annum) times the notional amount of Limited Brands, Inc., 6.125%, 12/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 4 Fund pays quarterly payment of 0.1830% (0.730% per annum) times the notional amount of Masco Corp., 5.875%, 07/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 14 Fund pays quarterly payment of 0.1175% (0.475% per annum) times the notional amount of MeadWestvaco, 6.850%, 04/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 31 - -------------------------------------------------------------------------------- 84 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0880% (0.3500% per annum) times the notional amount of MGIC Investment Corp., 6.000%, 11/01/15. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 $ 109 Fund pays quarterly payment of 0.0550% (0.220% per annum) times the notional amount of Nucor Corp., 4.875%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 (1) Fund pays quarterly payment of 0.0350% (0.140% per annum) times the notional amount of Pitney Bowes, Inc., 4.625%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,600 4 Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of PMI Group, Inc., 6.000%, 09/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 120 Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of Radian Group, Inc., 7.750%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 750 185 Fund pays quarterly payment of 0.0475% (0.190% per annum) times the notional amount of TJX Cos, Inc., 7.450%, 12/15/09. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 750 6 Fund delivers monthly payment of 0.0520% (0.620% per annum) times the notional amount of CMBX-NA-A 3 Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Goldman Sachs) 12/25/49 1,000 (42) Fund pays quarterly payment of 0.1150% (0.460% per annum) times the notional amount of Autozone, Inc., 5.875%, 10/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 (1) Fund pays quarterly payment of 0.0550% (0.220% per annum) times the notional amount of Black & Decker Corp., 7.125%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 (1) Fund pays quarterly payment of 0.0540% (0.215% per annum) times the notional amount of Carnival Corp., 6.650%, 01/15/28. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 06/20/12 750 7 Fund pays quarterly payment of 0.0650% (0.260% per annum) times the notional amount of Dow Chemical Co., 6.000%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 750 7 Fund pays quarterly payment of 0.2950% (1.180% per annum) times the notional amount of Gap, Inc., 8.800%, 12/15/08. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 (10) Fund pays quarterly payment of 0.3900% (1.560% per annum) times the notional amount of Hasbro, Inc., 2.750%, 12/01/21. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 183 - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.7700% (3.080% per annum) times the notional amount of Jones Apparel Group, Inc., 5.125%, 11/15/14. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 $ 30 Fund pays quarterly payment of 0.4500% (1.800% per annum) times the notional amount of Lubrizol Corp., 7.250%, 06/15/25. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 (2) Fund pays quarterly payment of 0.3500% (1.400% per annum) times the notional amount of MGIC Investment Corp., 6.000%, 03/15/07. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 750 120 Fund pays quarterly payment of 0.2800% (1.120% per annum) times the notional amount of Nordstrom, Inc., 6.950%, 03/15/28. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 750 16 Fund pays quarterly payment of 0.2200% (0.880% per annum) times the notional amount of Nucor Corp., 4.875%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 (1) Fund pays quarterly payment of 0.3500% (1.400% per annum) times the notional amount of PMI Group, Inc., 6.000%, 09/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 750 109 Fund pays quarterly payment of 0.2000% (0.800% per annum) times the notional amount of PPG Industries, Inc., 7.050%, 08/15/09. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 1 Fund pays quarterly payment of 0.3900% (1.560% per annum) times the notional amount of Radian Group, Inc., 7.750%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 750 161 Fund pays quarterly payment of 0.2700% (1.080% per annum) times the notional amount of Southwest Airlines Co., 6.500%, 03/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 750 6 Fund pays quarterly payment of 0.3200% (1.280% per annum) times the notional amount of Washington Mutual Co., 5.250%, 09/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 03/20/12 700 83 Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 650 (8) Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG., Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 12,300 (164) Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 3,850 (51) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 85 SCHEDULE OF INVESTMENTS (Unaudited) International Equity Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0625% (0.250% per annum) times the notional amount of Dow Chemical Co., 6.000%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/13 750 $ 8 Fund pays quarterly payment of 0.1300% (0.520% per annum) times the notional amount of Lowe's Cos., 8.250%, 06/01/10. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 8 Fund pays quarterly payment of 0.1130% (0.450% per annum) times the notional amount of Lubrizol Corp., 7.250%, 06/15/25. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 (2) Fund pays quarterly payment of 0.2250% (0.900% per annum) times the notional amount of MDC Holdings, Inc., 5.500%, 05/15/13. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 17 Fund pays quarterly payment of 0.0700% (0.280% per annum) times the notional amount of Nordstrom, Inc., 6.950%, 03/15/28. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/13 750 16 Fund pays quarterly payment of 0.1730% (0.690% per annum) times the notional amount of RR Donnelly & Sons Co., 4.950%, 04/01/14. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 (4) Fund pays quarterly payment of 0.0680% (0.270% per annum) times the notional amount of Southwest Airlines Co., 6.500%, 03/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 5 Fund pays quarterly payment of 0.1130% (0.450% per annum) times the notional amount of Weyerhaeuser Co., 6.750%, 03/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 03/20/12 750 9 Fund pays quarterly payment of 0.0850% (0.338% per annum) times the notional amount of Whirlpool Corp., 7.750%, 07/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 750 5 -------- $ 779 ======== Percentages are based on Net Assets of $1,606,626 ($ Thousands). * Non-Income Producing Security ** Rate shown is the 7-day effective yield as of November 30, 2007. - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $100,027 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of November 30, 2007 was $104,820 ($ Thousands). (D) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (E) The rate reported is the effective yield at time of purchase. (F) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been deter- mined to be liquid under guidelines established by the Board of Trustees. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (H) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (I) Security, or portion of this security, has been pledged as collateral on open swap contracts. The rate reported on the Schedule of Investments is the effective yield at time of purchase. ADR -- American Depositary Receipt ARM -- Adjustable Rate Mortgage AUD -- Australian Dollar CAD -- Canadian Dollar CHF -- Swiss Franc Cl -- Class CMO -- Collateralized Mortgage Obligation DKK -- Danish Krone EUR -- Euro FDR -- Fiduciary Depositary Receipt FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GBP -- British Pound Sterling GDR -- Global Depositary Receipt GNMA -- Government National Mortgage Association HKD -- Hong Kong Dollar IO -- Interest Only - face amount represents notional amount JPY -- Japanese Yen LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note MXP -- Mexican Peso NIM -- Net Interest Margin NOK -- Norwegian Krone NZD -- New Zealand Dollar SDR -- Swedish Depositary Receipt SEK -- Swedish Krona Ser -- Series SGD -- Singapore Dollar STRIPS -- Separately Traded Registered Interest and Principal Securities TBA -- To Be Announced USD -- U.S. Dollar ZAR -- South African Rand Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 86 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 World Equity Ex-US Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Financials 18.1% Materials 11.5% Industrials 10.6% Mortgage-Backed Securities 8.2% Consumer Discretionary 7.8% Energy 7.7% Telecommunication Services 7.1% Information Technology 6.2% Short-Term Investments 5.9% Consumer Staples 4.5% Utilities 4.0% Health Care 3.3% Commercial Paper 3.2% Asset-Backed Securities 1.0% U.S. Treasury Obligations 0.5% U.S. Government Agency Obligations 0.4% Rights 0.0% Options 0.0% Equity-Linked Warrants 0.0% Exchange Traded Funds 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- COMMON STOCK -- 83.8% ARGENTINA -- 0.0% Perez Companc ADR 27,984 $ 316 Petrobas Energia Participaciones ADR 18,516 209 Telecom Argentina ADR, Ser B 25,200 677 -------------- 1,202 -------------- AUSTRALIA -- 3.2% AED Oil* 31,200 119 AGL Energy (B) 10,493 119 Amcor 212,189 1,285 AMP 108,485 973 Asciano Group 39,887 262 Australia & New Zealand Banking Group 44,700 1,113 Australian Infrastructure Fund 308,800 901 Babcock & Brown (B) 14,166 325 BHP Billiton (B) 298,496 11,346 BlueScope Steel 235,100 2,048 Brambles 162,875 1,763 Challenger Financial Services Group 432,910 2,121 Coca-Cola Amatil 22,094 195 Commonwealth Bank of Australia 32,400 1,709 CSL 47,379 1,461 CSR 243,900 656 Dominion Mining 5,100 22 Downer EDI (B) 89,303 390 Felix Resources 5,600 40 Flight Centre 47,900 1,239 Fortescue Metals Group 8,900 446 Foster's Group 250,651 1,397 Goodman Fielder 758,427 1,311 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Incitec Pivot 300 $ 24 Independence Group 400 3 ING Industrial Fund (B) 449,521 1,065 John Fairfax Holdings 238,600 1,000 Jubilee Mines 14,300 291 Leighton Holdings 54,800 2,944 Macquarie Airports (B) 1,309,575 5,027 Macquarie Group (B) 16,746 1,189 Macquarie Infrastructure Group 705,745 2,010 Metcash (B) 287,200 1,110 Minara Resources 17,500 97 Mincor Resources 9,400 37 Mirvac Group 24,436 124 National Australia Bank 148,888 5,043 Newcrest Mining 130,150 3,886 OneSteel 32,000 188 Orica 1,600 40 Origin Energy 164,671 1,267 Pacific Brands 759,807 2,097 Portman* 7,551 75 Qantas Airways 324,185 1,677 QBE Insurance Group 345,439 9,905 Rio Tinto 13,600 1,746 Sally Malay Mining 5,500 25 Santos 78,400 992 Seven Network 137,300 1,639 Sims Group 9,142 220 Suncorp-Metway 62,964 1,040 TABCORP Holdings 32,200 435 Telstra 1,49,340 4,539 Toll Holdings 83,855 1,017 Westfield Group 59,368 1,073 Westpac Banking 36,000 902 Woolworths (B) 188,477 5,642 WorleyParsons 65,092 2,883 Zinifex 142,500 1,820 -------------- 94,313 -------------- AUSTRIA -- 0.4% Andritz 1,071 66 bwin Interactive Entertainment* 10,100 352 Erste Bank der Oesterreichischen Sparkassen 4,200 306 Immoeast* 17,439 189 IMMOFINANZ 37,792 397 OMV 49,125 3,501 Raiffeisen International Bank Holding (B) 7,358 1,201 Shoeller-Bleckmann Oilfield Equipment 3,400 313 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 87 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Telekom Austria 22,300 $ 655 Voestalpine 32,263 2,368 Wienerberger 12,500 709 -------------- 10,057 -------------- BELGIUM -- 0.9% Barco 2,400 186 Belgacom (B) 35,746 1,869 Compagnie Maritime Belge 30,500 2,737 D'ieteren 53 21 Delhaize Group 12,232 1,068 Dexia 64,538 1,765 Fortis 235,818 6,338 Fortis (Netherlands Line) 80,483 2,162 Gimv 11,200 820 InBev 7,600 668 KBC Groep 8,900 1,241 Solvay 7,600 1,130 UCB 18,314 873 Umicore 16,400 3,850 -------------- 24,728 -------------- BRAZIL -- 1.2% Acos Villares 754,000 339 Banco Bradesco ADR (B) 162,899 5,237 Banco do Brasil 63,200 1,131 Banco Nossa Caixa 25,300 392 Cia de Saneamento Basico do Estado de Sao Paulo 55,560 1,370 Cia de Saneamento de Minas Gerais-COPASA 22,700 403 Cia Vale do Rio Doce ADR 172,290 5,957 Contax Participacoes 3,255 128 EDP - Energias do Brasil 41,500 627 Gerdau ADR (B) 53,325 1,499 Localiza Rent A Car 129,700 1,303 Lojas Renner 71,300 1,685 Natura Cosmeticos 61,800 649 Petroleo Brasileiro ADR 6,048 582 Petroleo Brasileiro SA - Petrobras 23,500 1,119 Petroquimica Uniao 9,300 80 Plascar Participacoes Industriais SA* 16,600 86 Santos-Brasil 76,876 1,012 Souza Cruz 42,500 1,213 Tim Participacoes ADR 5,200 202 Tim Participacoes ADR (B) 108,257 4,199 Uniao de Bancos Brasileiros 7,200 108 Uniao de Bancos Brasileiros ADR 38,730 5,799 Uniao de Bancos Brasileiros GDR 2,500 374 -------------- 35,494 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- CANADA -- 4.7% Agrium* 9,847 $ 565 Aspreva Pharmaceuticals 3,050 78 Atco 6,500 394 Axcan Pharma* 4,900 111 Bank of Montreal* 41,150 2,612 Bank of Nova Scotia* 113,591 6,006 Barrick Gold 259,100 10,484 Barrick Gold (USD)* 18,900 766 Biovail 37,500 571 Bombardier, Cl B 399,700 2,419 BPO Properties* 1,400 87 CAE* 87,200 1,028 Cameco 97,969 4,064 Canaccord Capital 33,300 529 Canadian Imperial Bank of Commerce 54,778 4,869 Canadian National Railway 10,500 508 Canadian Natural Resources 60,810 3,949 Canadian Utilities* 11,900 601 Cascades* 11,000 91 Celestica* 89,800 513 CGI Group, Cl A* 412,260 4,689 Cogeco* 80 3 Dorel Industries, Cl B* 34,200 1,083 Dundee* 1,500 33 Eastern Platinum* 768,650 2,092 Empire 5,550 249 EnCana 124,600 8,090 European Goldfields* 300 2 Fairfax Financial Holdings 3,500 1,015 Finning International* 55,071 1,508 George Weston* 28,350 1,555 Gerdau Ameristeel 20,230 256 Gildan Activewear* 14,900 566 HudBay Minerals* 29,600 637 Husky Energy* 44,820 1,779 Industrial Alliance Insurance and Financial Services* 8,900 382 Inmet Mining* 11,900 1,107 Jean Coutu Group, Cl A 8,000 94 Kinross Gold* 9,960 172 Laurentian Bank 2,600 106 Linamar 7,800 155 Magna International, Cl A 19,500 1,561 Manulife Financial 30,600 1,279 Methanex 20,020 595 MI Developments, Cl A 4,700 128 National Bank of Canada 24,001 1,296 Nexen 21,701 616 Nortel Networks 190 3 Northbridge Financial 5,580 207 - -------------------------------------------------------------------------------- 88 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Nova Chemicals 43,300 $ 1,402 Onex 20,400 740 Open Text 26,100 840 Paramount Resources, Cl A* 200 3 Petro-Canada 58,430 2,823 Pinetree Capital 110,000 526 Potash Saskatchewan 101,500 12,063 Power Corp of Canada 109,800 4,445 Power Financial 47,790 1,986 PrimeWest Energy Trust 3,500 94 QLT 7,460 36 Quebecor 6,560 254 Research In Motion 130,850 14,897 Rogers Communications, Cl B 155,190 6,452 Rothmans 7,600 190 Royal Bank of Canada 84,602 4,486 Saputo 2,600 151 Saskatchewan Wheat Pool* 200 2 Savanna Energy Services 100 1 Sherritt International 112,400 1,573 Shoppers Drug Mart 22,600 1,240 Sino-Forest, Cl A 51,200 1,127 South Atlantic Ventures* 34,330 336 Sun Life Financial 82,105 4,327 Suncor Energy 17,100 1,636 Teck Cominco, Cl B 90,100 3,452 TELUS 21,367 990 Thomson 21,000 813 Toronto-Dominion Bank 500 38 TransCanada 6,700 266 Yellow Pages Income Fund 590 8 -------------- 138,700 -------------- CHILE -- 0.1% Administradora de Fondos de Pensiones Provida ADR 6,000 220 Cervecerias Unidas ADR 8,100 289 Cia Cervecerias Unidas ADR 5,500 196 Embotelladora Andina ADR 600 10 Empresa Nacional de Electricidad ADR 3,000 122 Enersis ADR 78,500 1,371 Lan Airlines ADR 73,600 1,086 -------------- 3,294 -------------- CHINA -- 2.0% Alibaba.com* 59,000 303 Anhui Conch Cement 392,000 3,373 Bank of China 5,553,000 2,889 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Bengang Steel Plates, Cl B 1,053,100 $ 1,058 China Construction Bank 3,741,000 3,594 China International Marine Containers 131,400 228 China Life Insurance 898,000 4,891 China Oilfield Services 402,000 957 China Petroleum & Chemical, Cl H 4,450,000 6,699 China Shipping Container Lines 1,098,750 987 China Shipping Development 1,578,000 4,277 China Telecom 2,432,000 1,937 Dongfeng Motor Group 1,266,000 977 First Tractor* 158,000 101 Great Wall Motor 169,000 257 Great Wall Technology* 60,000 19 Greentown Chinal Holdings 218,000 380 Guangdong Electric Power Development 247,600 200 Hangzhou Steam Turbine 98,000 233 Harbin Power Equipment 312,000 1,050 Huadian Power International 110,000 58 Huaneng Power International 342,000 363 Industrial & Commercial Bank of China, Cl H 6,657,000 5,267 Jiangxi Copper 99,000 262 Jianling Motors, Cl B 12,100 16 Lenovo Group 1,368,000 1,214 PetroChina, Cl H 4,722,000 9,110 Semiconductor Manufacturing International* 512,000 48 Shanghai Electric Group 1,077,000 855 Sinotrans 574,000 282 Spg Land Holdings* 160,000 130 Tencent Holdings 28,000 209 Weiqiao Textile 148,000 217 Yanzhou Coal Mining 2,304,000 4,741 Zhejiang Expressway 794,000 1,136 -------------- 58,318 -------------- COLOMBIA -- 0.0% BanColombia ADR 18,500 684 -------------- CYPRUS -- 0.2% Marfin Popular Bank 386,800 5,246 -------------- CZECH REPUBLIC -- 0.4% CEZ 141,119 10,450 Unipetrol* 52,000 935 -------------- 11,385 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 89 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- DENMARK -- 0.6% A P Moller - Maersk, Cl A 161 $ 1,895 A P Moller - Maersk, Cl B (B) 641 7,659 Carlsberg, Cl B 15,523 1,983 Danisco 7,281 539 Danske Bank 48,946 1,970 East Asiatic 7,875 541 Novo-Nordisk, Cl B 13,750 1,751 Vestas Wind Systems 26,000 2,477 -------------- 18,815 -------------- EGYPT -- 0.1% Egyptian International Pharmaceutical Industrial 30,000 169 El Ezz Steel 57,000 599 Mobinil-Egyptian Mobile Services 17,600 673 Oriental Weavers 20,000 195 Paints & Chemical Industry 8,000 88 Suez Cement 2,000 22 -------------- 1,746 -------------- FINLAND -- 1.1% Kemira 13,600 272 Konecranes 8,117 312 Neste Oil 6,462 227 Nokia 526,822 21,088 Nokian Renkaat 17,300 661 OKO Bank, Cl A 54,191 1,074 Outokumpu 21,421 692 Rautaruukki 11,000 521 Sampo, Cl A 65,600 1,928 Stora Enso, Cl R (B) 220,800 3,649 UPM-Kymmene 45,200 958 Wartsila, Cl B 8,700 668 YIT 3,720 87 -------------- 32,137 -------------- FRANCE -- 5.8% Accor 6,975 592 Air France-KLM 53,923 1,946 Air Liquide 14,663 2,135 Alstom 4,131 929 April Group 5,300 342 Arkema* 7,200 457 Atos Origin* 5,100 290 AXA (B) 123,948 5,082 BNP Paribas 129,071 14,617 Bouygues 69,444 6,240 Capgemini 25,900 1,512 Carbone Lorraine 3,800 280 Carrefour 7,200 559 Casino Guichard Perrachon 7,238 800 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Christian Dior 11,100 $ 1,456 Cie de Saint-Gobain 53,189 5,250 Ciments Francais 3,780 635 CNP Assurances 14,066 1,755 Compagnie Generale de Geophysique* 16,940 5,099 Compagnie Generale des Etablissements Michelin, Cl B 32,100 3,818 Credit Agricole 164,743 5,809 Dassault Systemes 22,048 1,298 Electricite de France (B) 4,700 573 Financiere de L'Odet 600 274 France Telecom 300,029 11,428 Groupe Danone 29,816 2,637 Havas 20,746 109 L'Oreal 31,105 4,334 Lafarge 27,570 4,406 Lagardere S.C.A. 38,937 3,135 Natixis 4,496 91 PagesJaunes Groupe 12,870 283 Pernod-Ricard 2,900 644 Peugeot 52,878 4,121 Publicis Groupe 10,700 390 Renault 54,423 7,945 Rhodia (B) 22,901 812 Sanofi-Aventis 179,006 17,082 Schneider Electric 49,408 6,917 SCOR 19,518 509 Sequana Capital 334 11 Societe Fonciere Financiere et de Participations 98 14 Societe Generale 44,808 6,944 Sodexho Alliance 9,100 577 Suez* 1,813 121 Technip 7,300 597 Thales 11,196 672 Thomson 33,000 515 Total (B) 194,228 15,746 Vallourec 4,000 1,135 Veolia Environnement 32,165 2,983 Vinci (B) 114,280 9,137 Vivendi 83,323 3,839 -------------- 168,882 -------------- GERMANY -- 6.3% Allianz 89,858 18,597 Altana 421 11 BASF 94,258 13,111 Bayer 177,742 14,699 Bayerische Motoren Werke 32,200 1,971 Commerzbank 92,499 3,679 Continental 18,500 2,414 DaimlerChrysler 186,440 19,033 Deutsche Bank* 77,757 10,248 - -------------------------------------------------------------------------------- 90 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Deutsche Beteiligungs 27,600 $ 934 Deutsche Boerse 18,296 3,443 Deutsche Lufthansa 139,995 3,791 Deutsche Telekom 217,677 4,825 E.ON 96,026 19,637 Fresenius Medical Care 122,800 6,889 Gildemeister 10,600 269 Hochtief 9,700 1,284 Hypo Real Estate Holding (B) 49,305 2,622 Infineon Technologies* 82,910 992 KSB 14 10 Lanxess 8,100 379 MAN 2,325 375 MTU Aero Engines Holding 543 29 Muenchener Rueckversicherungs 39,997 7,310 Norddeutsche Affinerie 92,400 3,140 Rheinmetall 2,800 233 RWE 41,278 5,658 Salzgitter 29,506 4,719 SAP 17,780 912 SGL Carbon* 68,600 3,873 Siemens 111,854 17,029 Software 9,600 785 ThyssenKrupp 77,101 4,561 TUI (B) 45,800 1,290 Volkswagen 17,059 4,103 Vossloh 16,300 1,771 Wincor Nixdorf 2,465 213 -------------- 184,839 -------------- GREECE -- 0.1% Alpha Bank 20,441 697 Coca Cola Hellenic Bottling 6,972 297 Cosmote Mobile Communications 2,046 79 Hellenic Telecommunications Organization 27,100 983 OPAP 8,041 313 Public Power 11,000 541 -------------- 2,910 -------------- HONG KONG -- 2.9% Allied Properties 502,000 223 Bank of East Asia 367,300 2,234 BOC Hong Kong Holdings 276,500 723 Cheung Kong Holdings 95,000 1,785 China Everbright 252,000 825 China Mobile 1,561,200 28,154 China Netcom Group 266,000 851 China Oriental Group 238,000 165 China Resources Logic 1,112,000 207 China State Construction International Holdings 544,000 938 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- China Unicom 178,000 $ 413 Chinese Estates Holdings 308,800 602 Chow Sang Sang Holdings 78,000 103 CITIC International Financial Holdings 1,058,000 682 CLP Holdings 130,500 884 CNOOC 12,000 22 Cosco Pacific 1,326,000 3,679 Dairy Farm International Holdings 18,000 83 Digital China Holdings 672,000 457 Enerchina Holdings 137,400 7 Esprit Holdings 110,200 1,653 Great Eagle Holdings 254,900 982 Guangzhou Investment 1,564,000 510 Guoco Group 52,100 699 Hang Lung Group 58,200 332 Hang Lung Properties 131,200 595 Hang Seng Bank 55,500 1,057 Hong Kong & China Gas (B) 271,400 802 Hong Kong Exchanges and Clearing 107,800 3,273 Hongkong & Shanghai Hotels 421,100 727 Hongkong Chinese 236,000 49 HongKong Electric Holdings 416,100 2,173 Hongkong Land Holdings 399,000 1,979 Hopewell Holdings 369,600 1,685 Hopson Development Holdings 140,000 437 Hutchison Telecommunications International 240,500 338 Hutchison Whampoa 34,000 403 Industrial and Commercial Bank of China Asia 358,000 839 Jardine Matheson Holdings 2,000 56 Jardine Strategic Holdings 3,000 48 Li & Fung 289,400 1,152 New World Development 579,800 2,208 Orient Overseas International 143,000 1,094 Pacific Century Premium Developments 314,000 104 Sea Holdings 6,000 5 Shanghai Industrial Holdings 80,000 387 Shenzhen Investment 354,000 269 Shenzhou International Group Holdings 818,000 368 Singamas Container Holdings 1,762,800 833 Sino Land 406,000 1,432 Sinolink Worldwide Holdings 614,000 150 Sun Hung Kai 698,500 951 Sun Hung Kai Properties 353,800 7,326 Swire Pacific, Cl A 192,400 2,590 Tian An China Investment 226,100 338 Transport International Holdings 28,800 131 Truly International Holdings 8,000 20 Vtech Holdings 69,700 619 Wharf Holdings 405,500 2,391 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 91 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Wheelock 264,700 $ 850 Wing On International 45,000 80 Yue Yuen Industrial Holdings 51,000 162 -------------- 85,134 -------------- HUNGARY -- 0.2% Danubius Hotel and Spa* 3,367 177 Magyar Telekom 210,000 1,102 OTP Bank 72,826 3,627 Raba Automotive Holding* 6,000 67 Tiszai Vegyi Kombinat* 6,600 286 -------------- 5,259 -------------- INDIA -- 1.8% Bank of India 118,400 1,048 Bharat Electronics 20,100 900 Bharti Televentures 208,317 4,939 Birla 20,000 173 CESC 17,280 273 Container of India 7,740 348 Dalmia Cement 1,780 22 GAIL India 12,297 133 Grasim Industries 6,390 613 Gujarat Narmada Valley Fertilizers 167,100 718 Gujarat State Fertilisers 93,610 622 Hindalco Industries 148,740 696 Hindustan Zinc 64,576 1,320 Jindal Stainless 101,150 556 JSW Steel 16,810 428 Kesoran Industries 20,900 296 Larsen & Toubro 38,172 3,977 Madras Cement 3,020 353 Mahindra & Mahindra 10,622 195 Maruti Udyog 25,230 646 National Aluminium 53,870 501 Neyveli Lignite Corporation 230,000 1,365 Oil & Natural Gas 62,610 1,845 Reliance Industries 2,180 157 Reliance Industries GDR 33,570 4,910 Satyam Computer Services 2,220 25 Siemens India 94,090 4,312 State Bank of India GDR (B) 9,020 1,088 Steel Authority of India 429,070 2,800 Sterlite Industries India 59,790 1,561 Tata Consultancy Services 6,790 173 Tata Motors 46,680 863 Tata Steel 283,726 5,914 UCO Bank 37,680 53 Unitech 453,306 4,367 Zee Entertainment Enterprises 519,221 3,772 -------------- 51,962 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- INDONESIA -- 0.3% Astra International 274,000 $ 731 Bank Rakyat Indonesia 2,738,500 2,280 HM Sampoerna 177,000 263 International Nickel Indonesia 83,000 835 Pt Apexindo Pratama Duta 278,500 68 Telekomunikasi Indonesia 4,527,800 4,905 Timah 128,000 341 -------------- 9,423 -------------- IRELAND -- 0.3% Allied Irish Banks 103,000 2,313 CRH 111,803 4,237 DCC 28,200 703 Irish Life & Permanent 22,300 444 -------------- 7,697 -------------- ISRAEL -- 0.6% Bank Hapoalim 1,007,033 5,008 Bank Leumi Le-Israel 330,000 1,520 Bezeq Israeli Telecommunication 1,320,543 2,391 Delek Group 2,700 642 Electra* 765 126 First International Bank of Israel* 32,000 426 Teva Pharmaceutical Industries 15,600 691 Teva Pharmaceutical Industries ADR 171,240 7,642 Union Bank of Israel 18,000 91 -------------- 18,537 -------------- ITALY -- 2.3% Aedes 56,100 311 AEM 376,200 1,585 Arnoldo Mondadori Editore 2,262 19 Banca Intesa 658,902 5,271 Banche Popolari Unite 30,102 861 Banco Popolare (B) 27,210 614 Beni Stabili 1,323,900 1,669 Buzzi Unicem (B) 36,100 1,004 Cementir 91,800 874 CIR-Compagnie Industriali Riunite 66,000 240 Danieli 23,700 773 Ducati Motor Holding 768,800 1,970 Edison 67,769 223 Enel (B) 293,285 3,526 ENI 317,635 11,362 Fiat (B) 408,158 11,245 Fiat RNC 71,220 1,593 Fondiaria-Sai 16,300 717 IFIL - Investments (B) 686,000 7,109 Immobiliare Grande Distribuzione 119,200 416 Indesit 43,800 740 - -------------------------------------------------------------------------------- 92 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Iride 7,693 $ 28 Italcementi 51,052 1,061 Italmobiliare 7,107 688 KME Group* 143,567 352 MARR 51,500 581 Pirelli & C 10,843 13 Safilo Group 105,138 378 Saipem 120,700 4,872 Snam Rete Gas 76,800 489 Telecom Italia 728,000 2,321 Telecom Italia RNC 452,393 1,134 UniCredito Italiano 390,854 3,342 -------------- 67,381 -------------- JAPAN -- 12.6% Aderans 5,900 94 Advantest (B) 8,300 236 Aeon 305,500 4,665 Aichi Bank 900 80 Aida Engineering 1,000 6 Aioi Insurance 94,000 521 Aisin Seiki 80,800 3,256 All Nippon Airways 71,000 276 Alps Electric 68,300 857 Amada 94,000 856 AOC Holdings 45,000 725 Aoyama Trading 28,500 726 Asahi Breweries 66,100 1,148 Asahi Glass 139,000 1,930 Asahi Kasei 113,000 813 Astellas Pharma 32,200 1,434 Atsugi 833,400 1,112 Autobacs Seven 29,900 644 Bank of Kyoto 87,900 1,121 Bank of the Ryukyus 52,900 729 Belluna 2,600 21 BML 900 13 Bosch 21,000 107 Bridgestone 113,100 2,156 Canon 86,000 4,504 Canon Finetech 3,700 56 Casio Computer 35,400 450 Cawachi 1,800 48 Chiba Bank 15,000 128 Chudenko 5,300 101 Chukyo Bank 9,000 28 Citizen Watch (B) 108,000 1,155 CMK 128,500 949 Coca-Cola West Holdings (B) 23,900 544 COMSYS Holdings 54,000 443 Cosmo Oil 368,800 1,509 Credit Saison 5,000 143 Daicel Chemical Industries 1,000 6 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Daido Steel 20,000 $ 147 Daiei 4,050 24 Daimei Telecom Engineering 84,600 659 Dainippon Ink and Chemicals 96,000 481 Dainippon Screen Manufacturing 27,000 152 Dainippon Sumitomo Pharma 35,000 285 Daishi Bank 22,000 91 Daito Trust Construction 2,300 110 Daiwa House Industry 43,000 571 Denso 5,000 204 East Japan Railway 273 2,259 EDION 55,600 692 Eighteenth Bank 17,000 61 Elpida Memory (B)* 33,200 1,113 Fanuc 43,400 4,519 Fields 4 5 Fuji Electric Holdings 28,000 103 Fuji Fire & Marine Insurance 48,000 154 Fuji Heavy Industries 77,000 382 Fuji Machine Manufacturing 3,400 82 FUJIFILM Holdings 72,200 3,189 Fujikura 34,000 168 Fujitsu 522,000 3,656 Fukuda Denshi 2,300 67 Fukuyama Transporting 153,700 648 Futaba 4,500 94 Gunma Bank 254,900 1,864 Gunze 148,600 622 Hachijuni Bank 39,000 308 Hakuhodo DY Holdings 3,140 183 Hankyu Holdings 228,000 1,059 Heiwa 14,100 119 Higashi-Nippon Bank 2,000 7 Hirose Electric 2,200 247 Hitachi 363,900 2,552 Hitachi Cable 112,000 722 Hitachi Kokusai Electric 1,000 13 Hitachi Maxwell 10,200 129 Hokkaido Electric Power 14,100 311 Honda Motor 203,000 6,881 Hoya 73,900 2,572 Hyakugo Bank 18,000 106 Ibiden 50,300 3,959 Idemitsu Kosan 21,700 2,441 Inpex Holdings 158 1,610 Isuzu Motors (B) 404,000 1,879 Itochu 219,000 2,298 Japan Airlines 116,000 277 Japan Digital Laboratory 2,000 28 Japan Steel Works 573,510 8,371 Japan Tobacco 1,342 7,598 JFE Holdings 107,800 5,880 JGC 49,000 906 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 93 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Joshin Denki 74,200 $ 607 JS Group 1,600 26 Kagoshima Bank 10,000 72 Kamigumi 21,000 164 Kaneka 37,000 306 Kansai Electric Power 73,900 1,899 Katokichi 11,500 73 Kawasaki Heavy Industries 84,000 276 Kawasaki Kisen Kaisha (B) 62,000 735 KDDI 165 1,169 Keyence 5,800 1,347 Kinden 33,000 269 Kirin Brewery 48,000 757 KK DaVinci Advisors* 181 179 Kobe Steel 231,000 756 Komatsu 64,100 1,936 Komori 20,000 474 Kumagai Gumi 247,600 308 Kuraray 76,500 941 Kyocera 9,700 870 Kyorin* 10,000 117 Kyowa Exeo 13,000 99 Kyowa Hakko Kogyo (B) 32,000 362 Kyushu Electric Power 84,600 2,296 Leopalace21 32,200 941 Maeda Road Construction 7,000 58 Marubeni 107,000 815 Matsushita Electric Industrial 98,000 1,975 Matsushita Electric Works 20,000 208 Mazda Motor 129,000 694 Mie Bank 1,000 5 Millea Holdings 63,500 2,227 Mitsubishi 536,800 15,389 Mitsubishi Chemical Holdings 533,500 4,261 Mitsubishi Estate 170,500 4,565 Mitsubishi Gas Chemical 30,000 310 Mitsubishi Heavy Industries 158,000 762 Mitsubishi Materials 190,000 952 Mitsubishi Paper Mills 376,900 853 Mitsubishi Tanabe Pharma 35,000 337 Mitsubishi UFJ Financial Group 886,580 8,704 Mitsui 277,800 6,336 Mitsui Chemicals 273,000 1,989 Mitsui Mining & Smelting 47,000 200 Mitsui OSK Lines 316,000 4,703 Mitsui Sumitomo Insurance 108,100 1,174 Mizuho Financial Group 673 3,610 Mochida Pharmaceutical 14,000 141 Murata Manufacturing 13,900 811 Nafco 100 2 Namco Bandai Holdings 2,600 43 NEC 153,000 716 NGK Spark Plug 29,000 512 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Nichicon 73,300 $ 779 Nikon 24,000 746 Nintendo 31,715 19,299 Nippo 100,800 722 Nippon Beet Sugar Manufacturing 202,600 442 Nippon Electric Glass 39,600 661 Nippon Konpo Unyu Soko 79,400 1,038 Nippon Mining Holdings 350,600 2,579 Nippon Oil 221,000 1,825 Nippon Sheet Glass 163,000 889 Nippon Shokubai 18,000 174 Nippon Steel 590,900 3,542 Nippon Telegraph & Telephone (B) 1,345 6,123 Nippon Television Network 170 21 Nippon Yusen (B) 190,000 1,637 Nissan Motor 642,300 7,325 Nisshin Oillio Group 19,000 73 Nisshin Steel 273,000 1,014 Nisshinbo Industries 118,200 1,574 Nitto Kogyo 5,400 65 Nomura Holdings 88,000 1,577 NTT DoCoMo 1,848 2,915 Obayashi 64,000 324 Odakyu Electric Railway (B) 38,200 277 Oki Electric Industry (B) 202,000 342 Okumura 153,200 700 Omron 38,900 1,003 Onward Kashiyama 23,000 249 ORIX 32,520 6,623 Plenus 5,300 81 Rakuten* 689 353 Ricoh 98,000 1,846 Riso Kagaku 2,200 38 Rohm 11,100 1,017 Royal Holdings 3,000 32 Sankyo 15,100 681 Sanwa Shutter 74,000 370 Sega Sammy Holdings 31,100 396 Seikagaku 1,600 19 Seiko Epson 22,600 501 Seino Transportation 98,000 716 Sekisui Chemical 271,000 1,852 Sekisui House (B) 149,000 1,902 Senshukai 5,800 59 SFCG 5,700 855 Sharp 201,000 3,298 Shin-Etsu Chemical 13,400 794 Shinsei Bank 140,000 500 Shiseido 12,000 287 Showa 9,400 80 Showa Shell Sekiyu 79,700 908 Sintokogio 4,700 50 SMC 15,800 1,826 - -------------------------------------------------------------------------------- 94 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Softbank (B) 369,200 $ 8,471 Sojitz 148,700 582 Sompo Japan Insurance 3,000 29 Sony 192,400 10,424 Sony Financial Holdings 229 867 Sumitomo 332,200 4,941 Sumitomo Chemical 456,700 3,887 Sumitomo Electric Industries 57,410 885 Sumitomo Forestry 22,000 160 Sumitomo Heavy Industries 23,000 248 Sumitomo Metal Industries 151,400 666 Sumitomo Metal Mining 86,000 1,768 Sumitomo Mitsui Financial Group (B) 1,481 12,697 Suzuken 10,900 360 Suzuki Motor 107,700 3,505 T&D Holdings 15,500 896 Taisho Pharmaceutical 1,000 20 Takeda Pharmaceutical 47,800 3,060 Teijin 71,000 307 Toagosei 436,400 1,440 Toda 405,100 2,158 Tokai Rika 4,200 126 Tokyo Electric Power 173,800 4,747 Tokyo Electron 10,300 632 Tokyo Gas 101,900 507 Tokyu 66,600 465 Toppan Printing 40,000 393 Toshiba (B) 886,600 7,209 Toshiba TEC 26,000 174 Tosoh 46,000 225 Toyo Seikan Kaisha 46,600 816 Toyota Auto Body 13,800 228 Toyota Industries 27,300 1,142 Toyota Motor 239,700 13,484 Trend Micro* 41,700 1,680 Trusco Nakayama 2,400 37 TV Asahi 63 99 Unicharm 13,900 900 UNY 71,000 628 Yahoo! Japan 4,667 2,243 Yamada Denki 25,590 2,955 Yamaha 8,600 208 Yamaha Motor 28,400 773 Yamatane 281,900 310 Yamato Kogyo 5,100 217 Yamato Transport 127,700 1,782 Yokogawa Bridge 75,100 433 Yokohama Rubber 180,700 1,118 Yutaka Giken 1,900 53 Zeon 38,000 251 -------------- 369,984 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- JERSEY -- 0.0% Meinl European Land* 15,180 $ 223 -------------- LUXEMBOURG -- 0.4% ArcelorMittal 92,149 6,827 Oriflame Cosmetics SDR 1,050 64 SES Global FDR 38,100 959 SES Global FDR (Paris Exchange) 31,763 783 Tenaris ADR 6,300 297 Tenaris ADR (B) 73,000 3,444 -------------- 12,374 -------------- MALAYSIA -- 0.6% Affin Holdings 166,600 128 Boustead Holdings 276,000 505 Fraser and Neave Holdings 7,000 16 Hong Leong Bank 358,000 665 Hong Leong Financial Group 78,000 137 IOI 2,335,225 4,685 KFC Holdings 50,100 104 Lion Industries 603,000 389 Multi-purpose Holdings 236,000 144 Oriental Holdings 22,000 43 Perlis Plantations 21,000 63 Petronas Dagangan 144,000 368 Public Bank (Foreign Market) 19,000 61 Resorts World 4,425,500 4,998 Sunway City 62,000 90 Tenaga Nasional 1,844,100 5,070 UMW Holdings 14,000 62 -------------- 17,528 -------------- MEXICO -- 1.3% Alfa 145,400 948 America Movil ADR, Ser L 224,570 13,847 America Movil, Ser L 1,125,400 3,464 Cemex* 1,105,700 3,163 Cemex ADR* 19,400 555 Coca-Cola Femsa, Ser L 270,200 1,230 Consorcio 1,820,872 1,747 Controladora Comercial Mexicana 177,400 483 Cydsa* 42,800 32 Embotelladoras Arca 151,900 509 Gruma 2,600 8 Grupo Bimbo, Ser A 31,250 175 Grupo Carso, Ser A1 155,500 547 Grupo Continental 163,500 348 Grupo Financiero Banorte (B) 1,004,989 4,366 Grupo Lamosa 79,400 185 Grupo Mexico, Ser B 296,700 2,082 Grupo Simec, Ser B* 104,200 338 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 95 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Industrias Penoles* 24,320 $ 583 Industrias, Ser B 90,800 337 Promotora Y Operadora de* 72,400 241 Telefonos de Mexico 1,261,700 2,357 Vitro, Ser A 45,700 84 -------------- 37,629 -------------- NETHERLANDS -- 3.2% ABN AMRO Holding 162 9 Aegon 101,125 1,812 Akzo Nobel (B) 149,040 11,463 Buhrmann 9,817 87 CSM 884 31 European Aeronautic Defense and Space (B) 24,857 801 Fugro 7,426 612 Heineken 1,574 104 Heineken Holding 8,798 494 Hunter Douglas 3,600 264 ING Groep (B) 411,591 16,028 Koninklijke Ahold 223,258 3,182 Koninklijke BAM Groep 64,994 1,561 Koninklijke DSM 45,608 2,277 Reed Elsevier 52,357 967 Royal Dutch Shell, Cl A 479,991 19,425 Royal Dutch Shell, Cl A (GBP) 131,883 5,331 Royal Dutch Shell, Cl B 240,764 9,663 Royal KPN 106,082 1,956 Smit Internationale 3,500 353 TNT 42,132 1,731 Unilever (B) 386,000 13,683 Vedior 37,300 931 Wolters Kluwer (B) 20,400 636 -------------- 93,401 -------------- NEW ZEALAND -- 0.1% Air New Zealand 512,700 708 Fletcher Building 98,300 893 Infratil 197,700 424 Telecom of New Zealand 6,700 22 -------------- 2,047 -------------- NORWAY -- 0.4% Aker, A Shares 7,213 435 DnB 115,200 1,806 Ementor* 172,200 1,208 Norsk Hydro 348,800 4,812 Orkla 31,700 573 Petroleum Geo-services (B) 3,000 86 Statoil 32,400 1,052 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Telenor 98,500 $ 2,287 Yara International 15,000 571 -------------- 12,830 -------------- PANAMA -- 0.0% Copa Holdings 7,200 260 -------------- PHILIPPINES -- 0.1% Bank of the Philippine Islands* 345,000 509 Benpres Holdings* 96,000 9 DMCI Holdings 69,000 16 JG Summit Holdings 1,055,000 244 Philex Mining 2,532,000 592 Philippine Long Distance Telephone 2,000 145 San Miguel, Cl B 106,000 126 SM Investments 161,582 1,253 -------------- 2,894 -------------- POLAND -- 0.3% Echo Investment* 4,800 146 Grupa Lotos 18,000 344 KGHM Polska Miedz 11,500 528 Orbis 12,000 294 Polish Oil & Gas* 468,000 1,027 Polski Koncern Naftowy Orlen 112,400 2,398 Polski Koncern Naftowy Orlen GDR 10,200 423 Telekomunikacja Polska 213,000 1,921 Zaklady Azotowe Pulawy 2,100 93 -------------- 7,174 -------------- PORTUGAL -- 0.2% Banco Comercial Portugues 154,000 676 Banco Espirito Santo 62,672 1,461 Cimpor Cimentos de Portugal 79,099 708 Energias de Portugal 302,360 2,046 Jeronimo Martins 46,000 371 Semapa-Sociedade de Investimento e Gestao 6,222 92 Sonae 116,700 351 Sonae Industria* 22,990 262 Teixeira Duarte - Engenharia Construcoes 8,127 27 -------------- 5,994 -------------- RUSSIA -- 2.5% Cherkizovo Group GDR* 60,759 844 LUKOIL ADR 16,167 1,398 LUKOIL Sponsored ADR 64,699 5,538 Mechel ADR 71,000 6,460 - -------------------------------------------------------------------------------- 96 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- MMC Norilsk Nickel ADR 27,760 $ 8,078 Mobile Telesystems ADR 98,400 8,925 Novolipetsk Steel GDR (B) 96,091 3,844 Novorossiysk Sea Trade Port ADR* 66,550 1,348 OAO Gazprom ADR 279,190 14,714 Open Investments GDR* 77,409 2,748 Polyus Gold ADR 32,971 1,434 Rosneft Oil GDR 298,559 2,707 Sberbank GDR (B) 13,844 6,536 Surgutneftegaz ADR (B) 29,801 1,772 Tatneft GDR 16,800 2,045 Unified Energy System GDR* 29,300 3,604 -------------- 71,995 -------------- SINGAPORE -- 0.7% Allgreen Properties 795,800 886 CapitaLand 271,000 1,311 City Developments 76,300 759 Cosco Singapore 6,000 29 DBS Group Holdings 78,000 1,084 Flextronics International* 38,300 458 Fraser and Neave 26,000 104 Ho Bee Investment 103,000 105 Hong Leong Finance 227,700 592 Hotel Plaza 84,000 109 Jardine Cycle & Carriage 53,558 774 K1 Ventures 68,000 15 Keppel 193,000 1,788 Kim Eng Holdings 429,400 668 Mapletree Logistics Trust+ 1,347,100 987 MCL Land 9,000 15 Metro Holdings 51,000 38 NatSteel 60,000 60 Neptune Orient Lines 441,000 1,268 SembCorp Industries 96,000 372 Singapore Airlines 53,000 656 Singapore Exchange 237,400 2,314 Singapore Petroleum 273,000 1,434 Singapore Press Holdings 100,000 314 Singapore Technologies Engineering 169,000 441 Singapore Telecommunications 324,850 871 SP Chemicals 80,000 55 United Overseas Bank 57,700 790 UOB-Kay Hian Holdings 21,000 31 UOL Group 97,000 303 Venture 16,000 139 Wheelock Properties S 311,500 463 Wing Tai Holdings 837,100 1,522 -------------- 20,755 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- SOUTH AFRICA -- 1.3% African Rainbow Minerals 19,000 $ 419 Anglo Platinum 14,000 2,000 AngloGold Ashanti 9,900 492 Assore 7,600 445 DataTec 50,000 262 Gold Fields 13,000 220 Harmony Gold Mining* 163,335 1,754 Harmony Gold Mining ADR 171,800 1,793 Impala Platinum Holdings 71,400 2,488 Imperial Holdings 26,000 394 JD Group 27,000 214 Liberty Group 70,000 916 Liberty Holdings 12,600 424 Merafe Resources* 909,672 278 Metropolitan Holdings 182,000 402 Mittal Steel South Africa 43,000 874 Mondi 6,470 55 MTN Group 23,000 466 Mvelaphanda Resources* 27,000 187 Nampak 7,696 25 Palabora Mining* 16,000 231 Sanlam 1,456,503 5,009 Sappi 209,954 2,869 Sasol 225,839 11,429 Standard Bank Group 200,100 3,091 Telkom 96,000 2,055 -------------- 38,792 -------------- SOUTH KOREA -- 3.0% Asia Cement 1,094 74 Daewoo Shipbuilding & Marine Engineering 84,588 4,155 Daou Technology 3,660 45 Dongbu Insurance 18,570 941 Doosan 4,070 1,001 Eugene 11,290 144 Hana Financial Group 24,100 1,134 Handsome 15,000 198 Hanwha Chemical 23,300 554 Honam Petrochemical 6,000 785 Hynix Semiconductor 31,500 886 Hyundai Development 53,979 4,829 Hyundai Heavy Industries 17,748 9,056 Hyundai Marine & Fire Insurance 30,020 668 Hyundai Mipo Dockyard 3,227 1,119 Hyundai Mobis 15,954 1,493 Industrial Bank of Korea 10,680 186 KCC Engineering & Construction 1,700 129 KISWIRE 2,710 144 Kookmin Bank 5,900 425 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 97 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Kookmin Bank ADR (B) 60,663 $ 4,399 Korea Development Financing 4,140 188 Korea Electric Power 62,850 2,634 Korea Fine Chemical 2,890 281 Korea Kumho Petrochemical 8,060 605 Korea Zinc 970 142 Korean Petrochemical Industries 4,580 306 KT&G 24,640 2,054 Kyeryong Construction Industrial 1,080 48 LG 16,040 1,365 LG Chem 15,620 1,665 LG Electronics 24,510 2,549 LG Home Shopping 1,514 119 LG Philips LCD* 123,050 6,920 LS Cable 4,920 561 Nong Shim Holdings 1,110 94 Pacific 1,460 265 POSCO 6,810 4,340 Samho International 12,280 313 Samsung Electronics 19,871 12,188 Samsung Electronics GDR 3,984 1,215 Samsung Fire & Marine Insurance 15,878 3,947 Samsung Heavy Industries 18,620 852 Samwhan 3,300 108 SFA Engineering 2,225 141 Shinhan Financial Group 41,540 2,259 Shinsegae 6,120 4,830 SK Energy* 4,982 1,025 SK Gas 3,820 314 SK Holdings 2,035 475 SK Telecom 519 139 SK Telecom ADR (B) 42,700 1,352 Taekwang Industrial 280 423 Young Poong 420 264 Youngone 14,160 146 -------------- 86,492 -------------- SPAIN -- 2.0% ACS Actividades Construcciones y Servicios (B) 31,604 2,040 Banco Bilbao Vizcaya Argentaria 296,449 7,402 Banco Santander Central Hispano 457,812 9,838 Cementos Portland Valderrivas 3,150 352 Ebro Puleva (B) 13,155 258 Fomento de Construcciones y Contratas 7,200 610 Gas Natural SDG (B) 128,287 7,922 Gestevision Telecinco (B) 20,841 565 Iberdrola 388,552 6,428 Inditex 18,865 1,319 Repsol* 258,472 9,553 Sol Melia 18,200 305 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Telefonica (B)* 345,871 $ 11,631 Union Fenosa 11,533 801 -------------- 59,024 -------------- SWEDEN -- 1.0% Assa Abloy, Cl B 19,200 400 Atlas Copco, Cl A 84,700 1,246 Boliden 31,765 449 D Carnegie 15,500 299 Hennes & Mauritz, Cl B 1,125 70 Industrivarden, Cl A 32,900 618 Investor, Cl B 16,300 383 Kinnevik Investment 13,800 336 Nordea Bank 93,000 1,561 Saab, Cl B 10,061 207 Sandvik 101,715 1,843 SAS* 19,500 298 Skandinaviska Enskilda Banken, Cl A 34,470 963 SKF 38,400 678 Ssab Svenskt Stal, Ser A 26,800 736 Svenska Cellulosa, Cl B 174,489 3,114 Svenska Handelsbanken, Cl A 57,063 1,813 Tele2, Cl B 275,100 6,287 Telefonaktiebolaget LM Ericsson, Cl B 1,044,000 2,549 TeliaSonera 376,500 3,595 Trelleborg, Cl B 18,600 414 Volvo, Cl B 111,000 1,894 Wihlborgs Fastigheter 7,823 140 -------------- 29,893 -------------- SWITZERLAND -- 4.1% ABB 111,520 3,277 Addax Petroleum 17,200 742 Adecco 16,500 922 AFG Arbonia-Forster Holdings 1,000 347 Bobst Group 516 36 Bucher Industries 1,800 446 Ciba Specialty Chemicals 5,100 231 Clariant 29,000 257 Compagnie Financiere Richemont, Cl A 148,299 10,206 Credit Suisse Group 188,907 11,402 Elektrizitaets-Gesellschaft Laufenburg 300 391 Energiedienst Holding 434 235 Forbo Holding 550 331 Georg Fischer 13 9 Helvetia Holding 800 269 Holcim 52,452 5,658 Inficon Holding 5,700 969 Nestle 38,893 18,705 Nobel Biocare Holding 5,515 1,573 Novartis 216,647 12,348 - -------------------------------------------------------------------------------- 98 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Rieter Holding 802 $ 400 Roche Holding 73,164 13,965 Schweizerische National- Versicherungs-Gesellschaft 76 53 Swatch Group 6,017 330 Swiss Life Holding 5,205 1,466 Swiss Reinsurance 111,678 8,304 Swisscom 8,149 3,103 Syngenta 31,230 7,703 UBS 72,297 3,663 Xstrata 114,974 8,083 Zurich Financial Services 17,325 5,052 -------------- 120,476 -------------- TAIWAN -- 2.2% Acer 413,105 871 Advanced Semiconductor Engineering 3,759,844 3,852 Asustek Computer 663,171 2,076 AU Optronics 1,848,051 3,580 Cathay Financial Holding 1,640,000 3,680 Chang Hwa Commercial Bank 150,000 89 Cheng Loong 454,000 154 Chi Mei Optoelectronics 1,313,000 1,762 China Development Financial Holding 3,479,350 1,380 China Petrochemical Development* 1,560,000 679 China Steel 681,330 898 Chinatrust Financial Holding* 5,025,600 3,645 Chunghwa Telecom 1,002,700 2,002 Compal Electronics 1,112,605 1,285 CTCI 160,297 120 Delta Electronics 1,204,250 4,143 Eastern Media International 390,000 143 Far EasTone Telecommunications 325,000 423 Farglory Land Development 387,000 856 Formosa Chemicals & Fibre 252,000 641 Fubon Financial Holding 1,331,000 1,165 HannStar Display* 2,029,000 912 High Tech Computer GDR 13,580 1,009 HON HAI Precision Industry 650,558 4,154 HON HAI Precision Industry GDR 31,745 405 Inventec 1,703,900 951 KYE Systems 1 -- Lite-On Technology 503,221 870 Macronix International 1,083,720 548 Makalot Industrial 55,000 135 MediaTek 288,950 3,762 Mitac International 955,599 1,063 Nan Ya Plastic 449,000 1,166 Nien Hsing Textile 258,000 160 Powerchip Semiconductor 1 -- President Securities 250,470 161 Quanta Computer 707,980 1,064 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Siliconware Precision Industries 2,174,133 $ 3,976 Taiwan Cooperative Bank 1,362,660 1,012 Taiwan Polypropylene 30,240 21 Taiwan Semiconductor Manufacturing 871,396 1,637 Taiwan Semiconductor Manufacturing ADR (B) 511,458 5,074 Tatung* 1,755,000 887 Teco Electric and Machinery 1,632,000 862 Tung Ho Steel Enterprise 274,000 412 U-Ming Marine Transport 17,000 46 United Microelectronics 564,141 337 Walsin Lihwa 987,000 428 Walsin Technology 120,000 103 Wistron 241,657 418 Yang Ming Marine Transport 703,576 547 -------------- 65,564 -------------- THAILAND -- 0.4% CalComp Electronics Thailand NVDR 589,200 121 PTT 100,300 1,126 PTT (Foreign) 373,500 4,193 PTT NVDR 210,700 2,366 Siam Commercial Bank 1,112,300 2,826 Thai Airways International NVDR 394,000 428 -------------- 11,060 -------------- TURKEY -- 0.4% Anadolu Isuzu Otomotiv Sanayi 1 -- Aygaz 78,001 327 Bossa Ticaret Sanayi Isletme 60,000 82 Cimsa Cimento Sanayi VE Tica 36,000 273 Eczacibasi Ilac Sanayi* 49,000 220 Eregli Demir ve Celik Fabrikalari 8,000 66 Haci Omer Sabanci Holding 1,003,283 5,619 KOC Holding* 340,000 1,731 Petrol Ofisi* 102,000 528 Tupras Turkiye Petrol Rafine 11,000 287 Turk Hava Yollari* 52,000 349 Turk Sise ve Cam Fabrikalari 255,569 499 Turkcell Iletisim Hizmet 80,000 869 Turkcell Iletisim Hizmet ADR 33,000 902 Vestel Elektronik Sanayi* 110,000 295 Yazicilar Holding 44,000 338 -------------- 12,385 -------------- UNITED KINGDOM -- 11.5% 3i Group 81,395 1,821 Acergy 230,800 4,932 Aegis Group 57,421 131 Alliance & Leicester 39,200 588 Amec 428,140 6,756 Anglo American 246,889 16,681 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 99 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Antofagasta 22,700 $ 356 ARM Holdings 48,741 133 Associated British Foods 150,000 2,736 AstraZeneca 101,091 4,802 AstraZeneca (SEK)* 15,850 758 Autonomy* 202,730 3,328 Aviva 354,833 4,976 BAE Systems 1,737,875 16,437 Balfour Beatty 8,818 89 Barclays 759,287 8,790 Barratt Developments 84,134 805 Bellway 18,769 374 Berkeley Group Holdings 27,200 789 BG Group 20,540 430 BHP Billiton 436,455 14,421 Bovis Homes Group 22,030 287 BP 1,366,245 16,574 Brit Insurance Holdings 29,373 155 British Airways* 124,288 872 British American Tobacco 143,752 5,577 British Energy Group 180,231 1,938 British Land+ 114,385 2,161 BT Group 299,254 1,764 Carphone Warehouse Group 39,894 300 Centrica 625,470 4,681 Charter* 31,917 566 Chaucer Holdings 293,500 610 Close Brothers Group 4,933 91 Compass Group 155,500 1,019 Cookson Group 26,340 404 Daily Mail & General Trust 86,233 986 Diageo 365,060 8,204 Dimension Data Holdings 263,800 334 DS Smith 109,900 473 Enterprise Inns 24,874 272 Firstgroup 310,100 4,527 FKI 179,500 285 Friends Provident 3,714 12 Galliford Try 15,645 41 GKN 74,300 489 GlaxoSmithKline 479,064 12,687 Go-Ahead Group 6,100 310 Greene King 83,000 1,398 Group 4 Securicor 9,430 42 Hammerson+ 2,946 63 Hays 79,082 207 HBOS 663,700 10,890 Home Retail Group 525,131 3,747 HSBC Holdings 653,729 11,156 Imperial Tobacco Group 45,761 2,366 International Power 28,314 272 Investec 45,615 488 Kazakhmys 68,000 1,881 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- Legal & General Group 300,814 $ 802 Lloyds TSB Group 112,166 1,142 LogicaCMG 70,952 181 London Stock Exchange Group 138,360 5,064 Lonmin 7,500 501 Marks & Spencer Group 131,203 1,574 Marston's 81,400 562 Michael Page International 47,257 318 Millennium & Copthorne Hotels 71,207 680 Mitchells & Butlers 94,951 1,127 Mondi 64,462 515 National Grid 297,500 5,025 Next 19,627 702 Northern Foods 521,100 1,021 Old Mutual 545,197 1,890 Persimmon 103,100 1,694 Premier Foods 99,900 411 Prudential 178,174 2,488 Punch Taverns 103,260 1,743 Qxl Ricardo 12,600 440 Reckitt Benckiser Group 37,618 2,235 Reuters Group 113,200 1,387 Rio Tinto 106,787 12,384 Rolls-Royce Group 154,000 1,673 Royal & Sun Alliance Insurance Group 535,187 1,634 Royal Bank of Scotland Group 1,798,024 16,969 SABMiller 375,287 10,680 Scottish & Southern Energy 102,057 3,337 Segro+ 1 -- Severn Trent 27,800 896 Shire 198,850 4,755 Smith & Nephew 571,650 6,835 St. Ives Group 104,800 537 Stagecoach Group 115,907 589 Standard Chartered 83,507 3,286 Standard Life 233,318 1,259 Stolt-Nielsen 41,400 1,038 Taylor Woodrow 208,161 880 Tesco 355,400 3,500 Travis Perkins 11,300 309 Trinity Mirror 65,316 455 Tui Travel 13,277 75 Unilever 38,312 1,405 United Utilities 155,778 2,402 Vodafone Group 10,189,060 38,171 Wolseley 81,200 1,160 WPP Group 128,000 1,616 Yell Group 208,700 1,787 -------------- 337,396 -------------- Total Common Stock (Cost $2,136,763) ($ Thousands) 2,454,313 -------------- - -------------------------------------------------------------------------------- 100 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- MORTGAGE-BACKED SECURITIES -- 8.8% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 6.4% FHLMC 6.000%, 10/01/21-11/01/21 $ 51 $ 51 FHLMC ARM 5.804%, 01/01/37 13,624 13,845 FHLMC CMO STRIPS, Ser 232, Cl IO, IO 5.000%, 08/01/35 12,719 3,098 FHLMC CMO STRIPS, Ser 233, Cl 12, IO 5.000%, 09/15/35 1,461 318 FHLMC CMO STRIPS, Ser 245, Cl IO, IO 5.000%, 05/15/37 1,170 316 FHLMC TBA 6.000%, 12/15/18 24,000 24,503 FNMA 5.500%, 06/01/22 17 17 4.604%, 01/02/08 (A) 2,473 2,463 FNMA TBA 6.000%, 12/01/18-01/01/37 104,000 106,301 5.500%, 01/01/19-01/01/37 22,106 22,581 5.000%, 01/01/19-12/01/37 4,007 4,021 FNMA CMO STRIPS, Ser 10, Cl FD (D) 5.481%, 12/25/07 1,574 1,564 FNMA CMO STRIPS, Ser 359, Cl 6, IO 5.000%, 11/01/35 572 129 FNMA CMO STRIPS, Ser 360, Cl 2, IO 5.000%, 08/01/35 10,277 2,509 FNMA CMO STRIPS, Ser 377, Cl 2, IO 5.000%, 10/01/36 26 7 GNMA ARM 6.500%, 12/30/07 351 355 6.500%, 02/20/34 279 284 6.000%, 01/20/33 822 832 6.000%, 04/20/34 327 330 5.625%, 08/20/34 392 395 5.500%, 06/20/36 1,215 1,220 5.250%, 08/20/34 163 165 5.000%, 02/20/35 306 306 4.750%, 12/20/33 1,902 1,904 -------------- 187,514 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 2.4% Adjustable Rate Mortgage Trust, Ser 2005-5, Cl 1A1 (D) 4.948%, 12/01/07 $ 1,051 $ 1,040 American Home Mortgage Investment Trust, Ser 2004-3, Cl 2A (D) 6.644%, 03/01/08 2,790 2,745 American Home Mortgage Investment Trust, Ser 2005-1, Cl 6A (D) 5.294%, 12/25/07 4,046 4,021 American Home Mortgage Investment Trust, Ser 2005-4, Cl 5A (D) 5.350%, 12/25/07 3,155 3,133 American Home Mortgage Investment Trust, Ser 2006-1, Cl 2A3 (D) 5.100%, 12/25/07 1,310 1,181 Banc of America Commercial Mortgage, Ser 2006-2, Cl A1 5.611%, 05/10/45 919 928 Banc of America Funding, Ser 2006-A, Cl 2A2 (D) 5.558%, 12/01/07 151 151 Bear Stearns Alt-A Trust, Ser 2004-12, Cl 2A2 (D) 5.319%, 12/01/07 1,147 1,114 Citigroup Mortgage Loan Trust, Ser 2007-AR5, Cl 1A2A (D) 5.614%, 12/01/07 2,515 2,534 Countrywide Alternative Loan Trust, Ser 2004-33, Cl 1A1 (D) 5.005%, 12/01/07 627 625 Countrywide Alternative Loan Trust, Ser 2005-69, Cl M3 (D) 5.939%, 12/27/07 220 173 Countrywide Alternative Loan Trust, Ser 2005-IM1, Cl M3 (D) 6.789%, 12/27/07 380 140 Countrywide Alternative Loan Trust, Ser 2006-0A11, Cl M3 (D) 5.219%, 12/30/07 450 439 Countrywide Home Loans, Ser 2004-22, Cl A1 (D) 5.089%, 12/01/07 574 575 Countrywide Home Loans, Ser 2006-HYB2, Cl 1A1 (D) 5.001%, 12/20/07 1,608 1,624 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 101 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Home Loans, Ser 2007-HYB1, Cl 1A1 (D) 5.576%, 12/01/07 $ 1,397 $ 1,388 Countrywide Home Loans, Ser 2007-HYB2, Cl 3A1 (D) 5.461%, 12/01/07 946 922 DLSA Mortgage Loan Trust, Ser 2006-AR1, Cl M4 (D) 5.761%, 12/19/07 250 205 DSLA Mortgage Loan Trust, Ser 2004-AR4, Cl B1 (D) 5.286%, 12/19/07 297 282 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl M5 (D) 5.831%, 12/19/07 150 119 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl M7 (D) 6.771%, 12/19/07 150 113 Deutsche Alternatives Securities Mortgage Loan Trust, Ser 2006-AB3, Cl A1 (D) 6.250%, 06/30/36 856 853 First Horizon Alternative Mortgage Trust, Ser 2006-AA6, Cl 2A1 (D) 5.642%, 12/01/07 4,681 4,582 First Horizon Mortgage Pass-Through Trust, Ser 2006-AR3, Cl 1A1 (D) 5.684%, 12/01/07 1,422 1,427 GS Mortgage Securities, Ser 2007-GG10, Cl A4 (D) 5.993%, 08/10/45 1,300 1,332 Greenpoint Mortgage Funding Trust, Ser 2006-AR1, Cl M3 (D) 5.443%, 12/27/07 350 242 Indymac Mortgage Loan Trust, Ser 2004-AR11, Cl 4A1 (D) 5.785%, 12/01/07 2,014 1,993 Indymac Mortgage Loan Trust, Ser 2004-AR6, Cl 1A (D) 7.498%, 12/01/07 113 114 JPMorgan Chase Commercial Mortgage, Ser 2006-CB17, Cl A4 5.429%, 12/12/43 1,800 1,795 Lehman Mortgage Trust, Ser 2006-4, Cl 4A1 6.000%, 08/25/21 3,473 3,480 MLCC Mortgage Investors, Ser 2006-1, Cl 1A1 (D) 5.301%, 12/01/07 1,732 1,743 Master Adjustable Rate Mortgages, Ser 2004-6, Cl 2A1 (D) 5.329%, 07/25/34 1,738 1,754 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Master Adjustable Rate Mortgages, Ser 2005-2, Cl 3A1 (D) 4.774%, 12/01/07 $ 1,333 $ 1,331 Morgan Stanley Mortgage Loan Trust, Ser 2007-11AR, Cl 2A5 (D) 6.001%, 12/01/07 960 972 Morgan Stanley Mortgage Loan Trust, Ser 2007-14AR, Cl 6A1 (D) 6.487%, 11/25/37 3,201 3,261 Nomura Asset Acceptance, Ser 2004-R1, Cl A1 (F) 6.500%, 03/25/34 324 327 Nomura Asset Acceptance, Ser 2004-R2, Cl A1 (D) (F) 6.500%, 10/25/34 386 387 Nomura Asset Acceptance, Ser 2007-1, Cl 1A1A (G) 5.995%, 12/09/07 1,854 1,860 Residential Accredit Loans, Ser 2005-Q05, Cl M3 (D) 5.673%, 12/25/07 348 298 Residential Accredit Loans, Ser 2005-QA3, Cl NB2 (D) 5.240%, 12/25/07 1,488 1,513 Residential Accredit Loans, Ser 2006-Q01, Cl 2A3 (D) 5.189%, 12/27/07 278 270 Residential Asset Securitization Trust, Ser 2004-IP2, Cl 3A1 (D) 5.248%, 12/25/07 1,326 1,319 Structured Adjustable Rate Mortgage Loan, Ser 2005-16 XS, Cl M2 (D) 5.689%, 12/25/07 205 141 Structured Adjustable Rate Mortgage Loan, Ser 2007-3, Cl 2A1 (D) 5.980%, 12/01/07 4,656 4,712 Structured Adjustable Rate Mortgage Loan, Ser 2007-9, Cl 2A1 (D) 6.000%, 12/01/07 1,970 2,008 Structured Asset Securities, Sasc 2006-nc1 A4, 5/25/2036 (D) 4.939%, 12/25/07 300 273 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY2, Cl 1A1 (D) 5.776%, 04/25/37 1,834 1,799 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY4, Cl 1A1 (D) 5.559%, 12/01/07 3,603 3,581 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl HY6 (D) 5.707%, 06/25/37 2,781 2,771 - -------------------------------------------------------------------------------- 102 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wells Fargo Mortgage Backed Securities Trust, Ser 2004-I, Cl B1 (D) 5.839%, 12/01/07 $ 119 $ 119 -------------- 69,709 -------------- Total Mortgage-Backed Securities (Cost $257,172) ($ Thousands) 257,223 -------------- ASSET-BACKED SECURITIES -- 1.0% MORTGAGE RELATED SECURITIES -- 1.0% ACE Securities, Ser 2003-NC1, Cl M (D) 5.653%, 12/25/07 650 610 ACE Securities, Ser 2003-OP1, Cl M1 (D) 5.489%, 12/26/07 300 291 Aames Mortgage Investment Trust, Ser 2005-4, Cl B2 (D) 7.539%, 12/12/07 150 51 Aegis Asset Backed Securities Trust, Ser 2003-3, Cl M1 (D) 5.489%, 12/25/07 38 38 Ameriquest Mortgage Securities, Ser 2003-2, Cl M1 (D) 6.139%, 12/25/07 475 423 Argent Securities, Ser 2003-W5, Cl M1 (D) 5.489%, 12/25/07 250 246 Argent Securities, Ser 2003-W9, Cl M1 (D) 5.479%, 12/26/07 369 365 Asset-Backed Securities Home Equity Loan Trust, Ser 2003-HE5, Cl M1 (D) 5.402%, 12/15/07 456 432 Basic Asset Backed Securities Trust, Ser 2006-1, Cl A1 (D) 4.953%, 12/25/07 541 537 Chase Funding Mortgage Loan, Ser 2004-2, Cl 1A3 4.209%, 09/25/26 19 19 Countrywide Asset-Backed Certificates, Ser 2003-5, Cl MV2 (D) 6.389%, 12/25/07 284 260 Countrywide Asset-Backed Certificates, Ser 2005-15, Cl 1AF1 (D) 4.929%, 12/25/07 245 245 Credit Suisse Asset-Backed Mortgage Trust, Ser 2006-1, Cl A1B (D) 5.725%, 12/26/07 310 309 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Credit Suisse Asset-Backed Mortgage Trust, Ser 2007-1, Cl 1A1A (D) 5.898%, 12/25/37 $ 3,662 $ 3,670 First Franklin Mortgage Loan Asset, Ser 2004-FF10, Cl A2 (D) 5.273%, 12/26/07 28 28 GSAA Home Equity NIM Trust, Ser 2006-2, Cl 2A1 (D) 4.973%, 12/27/07 1,378 1,373 GSAA Home Equity NIM Trust, Ser 2006-HE3N, Cl N1 (F) 5.500%, 05/25/36 62 6 Heat Equity Asset Trust NIM, Ser 2006-1N, Cl A (F) 6.500%, 05/27/36 51 10 Home Equity Asset Trust, Ser 2003-4, Cl M2 (D) 7.189%, 12/25/07 334 314 Home Equity Asset Trust, Ser 2006-5, Cl 2A3 (D) 4.939%, 12/26/07 250 218 Lehman XS Trust, Ser 2005-5N, Cl M4 (D) 6.539%, 12/31/07 575 330 Lehman XS Trust, Ser 2005-7N, Cl M71 (D) 6.539%, 12/27/07 335 175 Master Asset-Backed Securities Trust, Ser 2006-AB1, Cl A1 (D) 5.013%, 12/27/07 1,558 1,537 Merrill Lynch Mortgage Investors Trust, Ser 2003-HE1, Cl M2 (D) 6.523%, 12/25/07 94 82 Morgan Stanley ABS Capital I, Ser 2005-HE6, Cl A2C (D) 5.109%, 12/25/07 1,600 1,540 Morgan Stanley, Ser 2003-NC10, Cl M1 (D) 5.469%, 12/27/07 621 582 New Century Home Equity Loan Trust, Ser 2004-A, Cl AII3 (D) 4.450%, 12/01/07 127 127 New Century Home Equity Loan Trust, Ser 2005-A, Cl A2 (G) 4.461%, 12/25/07 665 659 Novastar Home Equity Loan, Ser 2007-1, Cl A2A (D) 4.889%, 12/31/07 2,971 2,896 Option One Mortgage Loan Trust, Ser 2003-5, Cl M1 (D) 5.439%, 12/23/07 254 233 Option One Mortgage Loan Trust, Ser 2006-1, Cl M10 (D) (F) 7.289%, 12/27/07 70 23 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 103 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Option One Mortgage Loan Trust, Ser 2006-1, Cl M11 (D) (F) 7.289%, 12/27/07 $ 150 $ 37 Residential Asset Mortgage Products, Ser 2003-RS11, Cl MII1 (D) 5.603%, 12/25/07 54 48 Residential Asset Mortgage Products, Ser 2006-RZ1, Cl A1 (D) 5.211%, 12/27/07 1,924 1,910 Residential Asset Securities, Ser 2006-EMX2, Cl A1 (D) 4.953%, 12/27/07 573 570 Residential Asset Securities, Ser 2006-KS2, Cl A1 (D) 4.943%, 12/27/07 250 250 Resmae Mortgage Loan Trust, Ser 2006-1, Cl A2A (D) (F) 4.889%, 12/25/07 858 846 Resmae Mortgage Loan Trust, Ser 2006-1, Cl A2B (D) (F) 4.939%, 12/25/07 1,500 1,460 SB Finance NIM Trust, Ser 2006-KS4N, Cl N1 (F) 7.500%, 06/25/36 51 15 Securitized Asset-Backed Receivables LLC Trust, Ser 2005-HE1, Cl A3C (D) 5.119%, 12/25/07 400 384 Sharps SP I LLC NIM Trust, Ser 2005-HE3N, Cl N (F) 5.000%, 05/25/35 101 3 Structured Asset Investment Loan Trust, Ser 2003-BC4, Cl M2 (D) 7.789%, 12/25/07 301 240 Structured Asset Investment Loan Trust, Ser 2005-1, Cl A4 (D) (F) 5.103%, 12/25/07 62 62 Structured Asset Securities, Ser 2007-BC1, Cl A4 (D) 4.919%, 12/25/07 1,350 1,192 Structured Asset Securities, Ser 2007-GEL2, Cl A1 (D) (F) 5.470%, 12/25/07 3,618 3,535 Terwin Mortgage Trust, Ser 2006-5, Cl 1A2A (D) (F) 5.221%, 12/26/07 2,332 2,240 Terwin Mortgage Trust, Ser 2006-6, Cl 2A1 (D) 4.500%, 06/25/36 342 196 -------------- Total Asset-Backed Securities (Cost $32,262) ($ Thousands) 30,617 -------------- - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- PREFERRED STOCK -- 1.8% AUSTRALIA -- 0.0% News 2,988 $ 62 -------------- BRAZIL -- 1.6% Acesita 14,900 720 ArcelorMittal 56,900 4,210 Banco Bradesco 73,800 2,363 Banco Itau Holding Financeira 31,800 886 Braskem, Cl A 95,600 847 Centrais Eletricas Brasileiras, Cl B 121,000 1,672 Centrais Eletricas de Santa Catarina 7,200 170 Cia de Bebidas das Americas 1,370 103 Cia Energetica de Minas Gerais 214,156 4,594 Cia Paranaense de Energia 62,000 972 Cia Vale do Rio Doce, Cl A 312,400 9,168 Commonwealth Bank of Australia 13,000 181 Construtora Sultepa 600 2 Eletropaulo Metropolitana, Cl A 20,000 1 Industrias J B Duarte* 1,200 -- Inepar Industria e Construcoes* 900 19 Mangels Industrial 2,000 43 NET Servicos de Comunicacao* 306,300 4,836 Paranapanema* 11,000 145 Petroleo Brasileiro 210,200 8,504 Tam 162,242 4,611 Tele Norte Celular Participacoes* 2,000 26 Tele Norte Leste Participacoes 22,800 479 Telemar Norte Leste 9,000 335 Uniao de Industrias Petroquimicas 193,600 237 Universo Online* 13,800 98 Usinas Siderurgicas de Minas Gerais, Cl A 32,100 1,642 -------------- 46,864 -------------- GERMANY -- 0.1% Porsche 672 1,494 -------------- ITALY -- 0.1% Istituto Finanziario Industriale* 54,400 1,939 -------------- SOUTH KOREA -- 0.0% Hyundai Motor (Second Preferred) 21,220 748 Samsung Electronics 1,000 441 -------------- 1,189 -------------- Total Preferred Stock (Cost $38,442) ($ Thousands) 51,548 -------------- - -------------------------------------------------------------------------------- 104 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- U.S. GOVERNMENT AGENCY OBLIGATIONS -- 0.4% FHLMC DN 5.754%, 03/10/08 (A) (H) $ 75 $ 74 5.218%, 03/31/08 (A) 450 438 5.077%, 03/03/08 (A) (H) 225 223 4.531%, 03/28/08 (A) (H) 75 74 FNMA DN (A) 5.580%, 03/12/08 2,775 2,743 4.608%, 03/26/08 225 222 4.504%, 03/28/08 150 148 4.359%, 04/16/08 975 960 4.281%, 05/09/08 801 787 4.262%, 05/07/08 6,574 6,457 5.034%, 02/29/08 (H) 25 25 1.080%, 03/03/08 100 99 -------------- Total U.S. Government Agency Obligations (Cost $12,237) ($ Thousands) 12,250 -------------- CORPORATE OBLIGATIONS-- 0.3% CONSUMER DISCRETIONARY -- 0.0% Time Warner 6.875%, 05/01/12 415 438 -------------- ENERGY -- 0.0% Dominion Resources 4.750%, 12/15/10 280 280 Exelon Generation 6.950%, 06/15/11 415 438 Weatherford International (F) 5.950%, 06/15/12 510 532 -------------- 1,250 -------------- FINANCIALS -- 0.3% Capmark Financial Group (F) 6.300%, 05/10/17 77 53 5.875%, 05/10/12 155 120 Cit Group 5.000%, 02/13/14 555 496 Discover Financial Services (F) 6.450%, 06/12/17 175 177 Genworth Financial 5.750%, 06/15/14 305 311 5.650%, 06/15/12 890 912 HSBC Finance 6.375%, 10/15/11 415 426 Istar Financial+ 5.875%, 03/15/16 280 229 Lehman Brothers Holdings MTN 5.750%, 05/17/13 140 141 5.500%, 04/04/16 275 264 - -------------------------------------------------------------------------------- Face Amount ($ Thousands)/ Market Value Description Shares/Contracts ($ Thousands) - -------------------------------------------------------------------------------- Merrill Lynch 6.050%, 05/16/16 $ 225 $ 220 Morgan Stanley 4.750%, 04/01/14 415 396 Residential Capital 8.375%, 06/30/15 80 51 7.500%, 02/22/08 220 145 6.500%, 04/17/13 1,035 670 SLM MTN (C) (D) 4.660%, 12/17/07 2,330 2,330 Shinsei Finance Cayman (D) (F) 6.418%, 01/29/49 545 479 Washington Mutual Preferred Funding (B) (D) (F) 6.534%, 03/29/49 600 319 -------------- 7,739 -------------- INDUSTRIALS -- 0.0% Lafarge 6.150%, 07/15/11 250 258 US Steel 5.650%, 06/01/13 165 164 -------------- 422 -------------- TELECOMMUNICATION SERVICES -- 0.0% Vodafone Group 5.350%, 02/27/12 110 111 -------------- Total Corporate Obligations (Cost $10,799) ($ Thousands) 9,960 -------------- EQUITY LINKED WARRANTS -- 0.0% HONG KONG -- 0.0% China Overseas Land, Expires 08/27/08* 128 83 Tian An China Investments, Expires 12/21/07* 226 33 -------------- Total Equity Linked Warrants (Cost $--) ($ Thousands) 116 -------------- PURCHASED OPTIONS --0.0% UNITED STATES -- 0.0% July 2008 U.S. Ten Year Treasury Call, Expires 06/16/08, Strike Price $95.00* 49 155 -------------- Total Purchased Options (Cost $21) ($ Thousands) 155 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 105 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Shares ($ Thousands) - -------------------------------------------------------------------------------- EXCHANGE TRADED FUND --0.0% UNITED STATES -- 0.0% iShares MSCI EAFE Index Fund* 300 $ 25 -------------- Total Exchange Traded Fund (Cost $24) ($ Thousands) 25 -------------- RIGHTS -- 0.0% Number of Rights ------------- AUSTRALIA -- 0.0% Newcrest Mining, Expires 10/17/07* 57 288 -------------- BRAZIL -- 0.0% Ambev, Expires 04/30/08* 66 -- -------------- INDIA -- 0.0% Tata Iron & Steel, Expires 10/29/08* 262 696 -------------- SINGAPORE -- 0.0% Hotel Plaza, Expires 11/28/08* 84 5 Wing Tai Holdings, Expires 11/01/08 (B)* 4 2 -------------- 7 -------------- SOUTH KOREA -- 0.0% Eugene, Expires 12/11/07* 3 9 -------------- Total Rights (Cost $--) ($ Thousands) 1,000 -------------- CASH EQUIVALENTS -- 6.3% UNITED STATES -- 6.3% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%**++ 55,650,000 55,650 SEI Liquidity Fund, L.P. 5.110%**++ (C) 129,278,297 129,278 -------------- Total Cash Equivalents (Cost $184,928) ($ Thousands) 184,928 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands)/Contracts ($ Thousands) - -------------------------------------------------------------------------------- COMMERCIAL PAPER (E) -- 3.5% Bristol-Myers Squibb 4.500%, 11/30/07 $ 10,200 $ 10,200 4.430%, 12/03/07 10,000 9,998 Estee Lauder 4.480%, 12/17/07 1,400 1,397 General Electric Capital 5.150%, 10/31/07 10 10 4.500%, 12/03/07 10,000 9,997 4.400%, 11/30/07 10,000 10,000 Hershey 8.952%, 12/10/07 10,000 9,989 ING Funding 4.550%, 12/12/07 10,000 9,986 Mitsubishi International 4.530%, 12/11/07 10,000 9,987 New Jersey Natural Gas 4.639%, 12/13/07 19,600 19,571 Rabobank USA Finance 4.670%, 12/04/07 10,000 9,996 -------------- Total Commercial Paper (Cost $101,131) ($ Thousands) 101,131 -------------- U.S. TREASURY OBLIGATIONS --0.5% U.S. Treasury Bills (A) (E) 3.773%, 12/20/07 250 250 3.023%, 02/21/08 6,496 6,452 U.S. Treasury Inflationary Index Notes (B) 2.375%, 04/15/11 7,088 7,391 -------------- Total U.S. Treasury Obligations (Cost $13,925) ($ Thousands) 14,093 -------------- Total Investments -- 106.4% (Cost $2,787,704) ($ Thousands) $ 3,117,359 ============== WRITTEN OPTION -- 0.0% UNITED STATES -- 0.0% July 2008 U.S. Ten Year Treasury Call, Expires 06/16/08, Strike Price: $95.50* (49) (99) -------------- Total Written Option (Premiums Received $(8)) ($ Thousands) $ (99) -------------- - -------------------------------------------------------------------------------- 106 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (See Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION/ CONTRACTS EXPIRATION (DEPRECIATION) TYPE OF CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - ------------------------------------------------------------------------------- 90-Day Euro$ (71) Dec-2007 $ 259 90-Day Euro$ (218) Dec-2008 (705) 90-Day Euro$ (36) Dec-2009 (106) 90-Day Euro$ (41) Dec-2010 (91) 90-Day Euro$ 1 Dec-2011 1 90-Day Euro$ 66 Jun-2008 102 90-Day Euro$ 97 Jun-2009 253 90-Day Euro$ (180) Jun-2010 (398) 90-Day Euro$ 1 Jun-2011 1 90-Day Euro$ 5 Jun-2012 5 90-Day Euro$ 26 Mar-2008 6 90-Day Euro$ (25) Mar-2009 (65) 90-Day Euro$ (37) Mar-2010 (98) 90-Day Euro$ (32) Mar-2011 (72) 90-Day Euro$ 1 Mar-2012 1 90-Day Euro$ (27) Sep-2008 (77) 90-Day Euro$ 95 Sep-2009 227 90-Day Euro$ (42) Sep-2010 (97) 90-Day Euro$ 12 Sep-2011 13 90-Day Euro$ 24 Sep-2012 28 Amsterdam Index 69 Dec-2007 33 CAC40 10 Euro 224 Dec-2007 448 DAX Index 70 Dec-2007 565 DJ Euro Stoxx 50 663 Dec-2007 500 Index Fed Fund 30 day 27 Jan-2008 14 Fed Fund 30 day 1 Feb-2008 1 Fed Fund 30 day 1 Mar-2008 1 FTSE 100 Index 547 Dec-2007 1,648 Hang Seng Index 66 Dec-2007 638 IBEX 35 Plus Index 68 Dec-2007 38 MSCI Sing Index 37 Dec-2007 109 Nikkei 225 Index 14 Dec-2007 3 OMX Index 578 Dec-2007 267 S&P/MIB Index 35 Dec-2007 30 S&P/TSE 60 Index 243 Dec-2007 (579) SPI 200 Index 202 Dec-2007 813 Topix Index 356 Dec-2007 1,031 U.S. 2 Year Treasury Note 9 Mar-2008 (6) U.S. 5 Year Treasury Note (162) Dec-2007 (573) U.S. 10 Year Treasury Note (76) Dec-2007 (315) ------- $ 3,853 ======= A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007, is as follows (See Note 2 in Notes to Financials Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY CURRENCY APPRECIATION MATURITY TO DELIVER TO RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------- 12/21/07-04/21/08 AUD 10,423 JPY 1,055,000 $ 414 12/21/07 AUD 693 GBP 301 5 12/21/07 CAD 300 USD 323 23 12/21/07 CHF 3,251 EUR 1,976 18 12/21/07-04/21/08 CHF 21,200 USD 17,952 (977) 12/21/07 CHF 26,200 GBP 10,959 (829) 12/21/07-05/22/08 CHF 12,900 NZD 15,043 (66) 12/21/07 EUR 4,082 SEK 37,950 (51) 12/21/07 EUR 397 CHF 654 (4) 12/21/07 GBP 1,553 AUD 3,572 (35) 12/21/07-05/22/08 GBP 13,952 JPY 3,188,000 371 12/21/07-03/25/08 GBP 9,967 CHF 23,800 707 12/21/07 HKD 129,162 USD 16,619 16 12/21/07-05/22/08 JPY 3,431,000 GBP 13,718 (654) 12/21/07-03/26/08 JPY 810,000 USD 9,071 (792) 12/21/07-04/21/08 JPY 1,055,000 AUD 10,818 (65) 12/21/07 MXP 150,206 USD 13,724 (57) 12/21/07-4/21/08 NZD 13,578 CHF 11,700 94 - ------------------------------------------------------------------------------- UNREALIZED CURRENCY CURRENCY APPRECIATION MATURITY TO DELIVER TO RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------- 12/21/07 SEK 21,110 EUR 2,278 $ 39 12/24/07 SGD 13,134 USD 9,104 8 12/21/07 ZAR 6,661 USD 988 10 12/21/07 USD 30,891 AUD 35,004 43 12/21/07 USD 37,044 CAD 36,423 (593) 12/21/07 USD 118,119 GBP 57,564 176 12/17/07-12/21/07 USD 5,017 NOK 27,534 (50) 12/21/07-4/21/08 USD 68,103 CHF 76,853 167 12/21/07-3/26/08 USD 47,723 JPY 5,295,144 165 12/17/07-12/21/07 USD 8,764 SEK 55,304 (103) 12/17/07 USD 1,502 DKK 7,548 (15) 12/17/07-7/10/49 USD 69,277 EUR 46,730 (667) 12/17/07 USD 3,774 HKD 29,355 (1) 12/17/07 USD 267 NZD 352 3 12/17/07 USD 2,151 SGD 3,098 (7) ------- $(2,707) ======= A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows: - -------------------------------------------------------------------------------- TOTAL RETURN SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Deliver payment on the quarterly reset spread from Swiss Market Index plus 23 basis points times the notional amount. Fund pays payment if the return on the spread appreciates over the pay- ment period and receives if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) CHF 01/24/08 13,862 $ (194) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 40 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 04/30/08 10,000 (250) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 30 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Merrill Lynch) 01/31/08 15,000 (376) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 5 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 01/31/08 10,000 (253) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 75 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Wachovia) 01/31/08 12,000 (310) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 80 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 03/31/08 24,000 (621) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index plus 50 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 02/28/08 19,000 (491) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 107 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Receive payment on the monthly reset spread from Bank of America--CMBS AAA10Yr Index plus 40 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 02/28/08 43,000 $ (1,112) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 10 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 03/31/08 21,000 (543) Receive payment on the monthly reset spread from Bank of America -- CMBS AAA10Yr Index minus 50 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 03/31/08 8,000 (207) Receive payment on the monthly reset spread from Bank of America -- CMBS IG 10Yr Index plus 35 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bank of America) 05/01/08 6,000 (217) Receive payment on the monthly reset spread from Lehman Brothers -- CMBS AAA 8.5 Plus Index plus 15 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 01/01/08 6,000 (233) Receive payment on the monthly reset spread from Lehman Brothers -- CMBS AAA 8.5 Plus Index minus 15 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 05/01/08 7,000 (277) Deliver payment on the quarterly reset spread from MSCI EAFE Index minus 20 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bear Stearns) 03/23/08 22,740 563 Deliver payment on the quarterly reset spread from MSCI EAFE Index minus 23 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Bear Stearns) 08/06/08 16,313 (458) Deliver payment on the quarterly reset spread from MSCI EAFE Index minus 22 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 06/30/08 20,622 154 Deliver payment on the quarterly reset spread from MSCI EAFE Index minus 23 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 09/01/08 13,865 860 Deliver payment on the quarterly reset spread from MSCI Japan Net Index plus 20 basis points times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 03/24/08 19,750 (821) --------- $ (4,786) ========= - -------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund delivers quarterly payment of 0.1125% (0.450% per annum) times the notional amount of the iTraxx Europe Senior Financials 5 Year Index, Series 8. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Bank of America) 12/20/12 2,500 $ (4) Fund pays quarterly payment of 0.1125% (0.450% per annum) times the notional amount of the iTraxx Europe Senior Financials 5 Year Index, Series 8. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Goldman Sachs) 12/20/12 5,750 (3) Fund pays quarterly payment of 0.0800% (0.320% per annum) times the notional amount of Alcan, Inc., 4.875%, 09/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 03/20/14 850 (2) Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of Alcan, Inc., 4.875%, 09/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 (5) Fund pays quarterly payment of 0.1100% (0.440% per annum) times the notional amount of Autozone, Inc., 5.875%, 10/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 (1) Fund pays quarterly payment of 0.1380% (0.550% per annum) times the notional amount of Black & Decker Corp., 7.125%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 (2) Fund pays quarterly payment of 0.0500% (0.200% per annum) times the notional amount of Campbell Soup Co., 4.875%, 10/01/13. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 06/20/14 1,600 3 Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG., Series 7 Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 13,400 (179) Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,400 (26) Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 950 (17) Fund pays quarterly payment of 0.1000% (0.400% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 700 (14) Fund pays quarterly payment of 0.1110% (0.445% per annum) times the notional amount of Darden Restaurants, Inc., 7.125%, 02/01/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 2 Fund pays quarterly payment of 0.2950% (1.180% per annum) times the notional amount of Gap, Inc., 8.800%, 12/15/08. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 (14) Fund pays quarterly payment of 0.0980% (0.390% per annum) times the notional amount of Johnson Controls, Inc., 7.125%, 07/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 (1) - -------------------------------------------------------------------------------- 108 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0930% (0.370% per annum) times the notional amount of Johnson Controls, Inc., 7.125%, 07/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 $ (2) Fund pays quarterly payment of 0.1190% (0.475% per annum) times the notional amount of Limited Brands, Inc., 6.125%, 12/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 41 Fund pays quarterly payment of 0.1830% (0.730% per annum) times the notional amount of Masco Corp., 5.875%, 07/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 19 Fund pays quarterly payment of 0.1175% (0.475% per annum) times the notional amount of MeadWestvaco, 6.850%, 04/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 5 Fund pays quarterly payment of 0.0880% (0.3500% per annum) times the notional amount of MGIC Investment Corp., 6.000%, 11/01/15. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 160 Fund pays quarterly payment of 0.0550% (0.220% per annum) times the notional amount of Nucor Corp., 4.875%, 10/01/12. Upon a defined cred- it event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 (1) Fund pays quarterly payment of 0.0350% (0.140% per annum) times the notional amount of Pitney Bowes, Inc., 4.625%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 2,100 11 Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of PMI Group, Inc., 6.000%, 09/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 146 Fund pays quarterly payment of 0.0880% (0.350% per annum) times the notional amount of Radian Group, Inc., 7.750%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/13 1,000 246 Fund pays quarterly payment of 0.0475% (0.190% per annum) times the notional amount of TJX Cos, Inc., 7.450%, 12/15/09. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 8 Fund pays quarterly payment of 0.1130% (0.450% per annum) times the notional amount of Weyerhaeuser Co., 6.750%, 03/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Bank of America) 12/20/11 1,000 7 Fund delivers monthly payment of 0.0520% (0.620% per annum) times the notional amount of CMBX-NA-A 3 Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Goldman Sachs) 12/25/49 1,000 (47) Fund delivers monthly payment of 0.0520% (0.620% per annum) times the notional amount of CMBX-NA-A 3 Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Goldman Sachs) 12/25/49 1,000 (44) Fund pays quarterly payment of 0.1150% (0.460% per annum) times the notional amount of Autozone, Inc., 5.875%, 10/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 (2) - -------------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0550% (0.220% per annum) times the notional amount of Black & Decker Corp., 7.125%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 $ (2) Fund pays quarterly payment of 0.0540% (0.215% per annum) times the notional amount of Carnival Corp., 6.650%, 01/15/28. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 06/20/12 950 11 Fund pays quarterly payment of 0.0650% (0.260% per annum) times the notional amount of Dow Chemical Co., 6.000%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 1,000 10 Fund pays quarterly payment of 0.2950% (1.180% per annum) times the notional amount of Gap, Inc., 8.800%, 12/15/08. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 (13) Fund pays quarterly payment of 0.3900% (1.560% per annum) times the notional amount of Hasbro, Inc., 2.750%, 12/01/21. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 10 Fund pays quarterly payment of 0.7700% (3.080% per annum) times the notional amount of Jones Apparel Group, Inc., 5.125%, 11/15/14. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 40 Fund pays quarterly payment of 0.4500% (1.800% per annum) times the notional amount of Lubrizol Corp., 7.250%, 06/15/25. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 (3) Fund pays quarterly payment of 0.3500% (1.400% per annum) times the notional amount of MGIC Investment Corp., 6.000%, 03/15/07. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 1,000 160 Fund pays quarterly payment of 0.2800% (1.120% per annum) times the notional amount of Nordstrom, Inc., 6.950%, 03/15/28. Upon a defined credit event, Fund will receive the notion- al amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 1,000 21 Fund pays quarterly payment of 0.2200% (0.880% per annum) times the notional amount of Nucor Corp., 4.875%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 (1) Fund pays quarterly payment of 0.3500% (1.400% per annum) times the notional amount of PMI Group, Inc., 6.000%, 09/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 1,000 146 Fund pays quarterly payment of 0.2000% (0.800% per annum) times the notional amount of PPG Industries, Inc., 7.050%, 08/15/09. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 2 Fund pays quarterly payment of 0.3900% (1.560% per annum) times the notional amount of Radian Group, Inc., 7.750%, 06/01/11. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/13 1,000 215 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 109 SCHEDULE OF INVESTMENTS (Unaudited) World Equity Ex-US Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.2700% (1.080% per annum) times the notional amount of Southwest Airlines Co., 6.500%, 03/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 12/20/11 1,000 $ 8 Fund pays quarterly payment of 0.3200% (1.280% per annum) times the notional amount of Washington Mutual Co., 5.250%, 09/15/17. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: JPMorgan Chase) 03/20/12 1,000 119 Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 850 (11) Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG., Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 5,100 (67) Fund pays quarterly payment of 0.4000% (1.600% per annum) times the notional amount of CDX.NA.IG. Index. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 16,400 (219) Fund pays quarterly payment of 0.0625% (0.250% per annum) times the notional amount of Dow Chemical Co., 6.000%, 10/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/13 1,000 11 Fund pays quarterly payment of 0.1300% (0.520% per annum) times the notional amount of Lowe's Cos., 8.250%, 06/01/10. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 11 Fund pays quarterly payment of 0.1130% (0.450% per annum) times the notional amount of Lubrizol Corp., 7.250%, 06/15/25. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 (3) Fund pays quarterly payment of 0.2250% (0.900% per annum) times the notional amount of MDC Holdings, Inc., 5.500%, 05/15/13. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 22 Fund pays quarterly payment of 0.0700% (0.280% per annum) times the notional amount of Nordstrom, Inc., 6.950%, 03/15/28. Upon a defined credit event, Fund will receive the notion- al amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/13 1,000 21 Fund pays quarterly payment of 0.1730% (0.690% per annum) times the notional amount of RR Donnelly & Sons Co., 4.950%, 04/01/14. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 (5) Fund pays quarterly payment of 0.0680% (0.270% per annum) times the notional amount of Southwest Airlines Co., 6.500%, 03/01/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 8 Fund pays quarterly payment of 0.1130% (0.450% per annum) times the notional amount of Weyerhaeuser Co., 6.750%, 03/15/12. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 03/20/12 1,000 13 Fund pays quarterly payment of 0.0850% (0.338% per annum) times the notional amount of Whirlpool Corp., 7.750%, 07/15/16. Upon a defined credit event, Fund will receive the notional amount and deliver the defined obligation. (Counterparty: Merrill Lynch) 12/20/11 1,000 7 --------- $ 795 ========= - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $2,929,939 ($ Thousands). * Non-Income Producing Security ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Security, or portion thereof, has been pledged as collateral on open futures contracts. (B) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $126,891 ($ Thousands). (C) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of November 30, 2007 was $131,608 ($ Thousands). (D) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (E) The rate reported is the effective yield at time of purchase. (F) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (H) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. ADR -- American Depositary Receipt ARM -- Adjustable Rate Mortgage AUD -- Australian Dollar CAD -- Canadian Dollar CHF -- Swiss Franc Cl -- Class CMO -- Collateralized Mortgage Obligation DKK -- Danish Krone DN -- Discount Note EUR -- Euro FDR -- Fiduciary Depositary Receipt FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GBP -- British Pound Sterling GDR -- Global Depositary Receipt GNMA -- Government National Mortgage Association HKD -- Hong Kong Dollar IO -- Interest Only - face amount represents notional amount JPY -- Japanese Yen LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note MXP -- Mexican Peso NIM -- Net Investment Margin NOK -- Norwegian Krone NVDR -- Non-Voting Depositary Receipt NZD -- New Zealand Dollar SDR -- Swedish Depositary Receipt SEK -- Swedish Krona Ser -- Series SGD -- Singapore Dollar STRIPS -- Separately Traded Registered Interest and Principal Securities TBA -- To Be Announced USD -- U.S. Dollar ZAR -- South African Rand Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 110 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Enhanced Income Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Loan Participations 24.7% Mutual Funds 24.3% Mortgage-Backed Securities 15.6% Asset-Backed Securities 11.4% Short-Term Investments 9.8% Time Deposits 5.7% Financials 5.3% Consumer Discretionary 0.9% Utilities 0.5% Consumer Staples 0.4% Telecommunication Services 0.4% Health Care 0.4% U.S. Treasury Obligations 0.2% Energy 0.2% Industrials 0.1% Sovereign 0.1% Certificates of Deposit 0.0% +++ Percentages based on total investments. Narrow industries are utilized for compliance purposes, where broad sectors are utilized for reporting. - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- LOAN PARTICIPATIONS -- 24.7% Acquireco LLC, Ser B (E) 0.000%, 10/09/14 $ 921 $ 900 Acquireco LLC, Ser B, Delayed Draw (E) 0.000%, 10/09/14 79 77 Alpha Topco 7.915%, 12/31/13 1,000 964 Alpha Topco, 2nd Lien 9.040%, 06/30/14 1,000 949 Blockbuster 9.432%, 08/20/11 1,017 975 Boston Generating LLC, 1st Lien 7.448%, 12/20/13 773 743 Boston Generating LLC, 1st Lien (Synthetic) 7.610%, 12/20/13 1,220 1,143 Brickman Group Holdings, Tranche B 7.143%, 01/23/14 995 943 CCS Medical 8.450%, 09/30/12 992 963 Caritor 7.070%, 05/17/13 928 784 Caritor (Synthetic) 7.060%, 05/11/13 70 61 Cequel Communications, 1st Lien 7.211%, 11/05/13 498 464 Charter Communications 7.360%, 06/05/14 1,000 932 Checksmart Financial, 1st Lien, Ser B 7.900%, 05/01/12 1,000 930 Clarke American, Tranche B 7.698%, 03/09/14 1,995 1,835 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Colleyville Resources LOC 8.481%, 12/28/10 $ 163 $ 156 Colleyville Resources, Tranche D 8.481%, 12/28/13 531 513 Crescent Resources, LLC 8.045%, 09/07/12 1,000 895 Delta Air Lines 6.840%, 04/30/12 1,000 952 Delta Air Lines, 2nd Lien 8.082%, 04/30/14 998 956 Dollar General, Tranche B-1 7.734%, 07/07/14 1,000 920 Dynea North, 1st Lien 8.110%, 02/09/08 1,000 920 Foamex LP, 1st Lien (E) 0.000%, 02/12/13 976 903 Ford Motor 8.700%, 12/15/13 1,489 1,386 Ginn La Conduit Lender, 1st Lien, Tranche A 5.098%, 06/08/11 315 253 Ginn La Conduit Lender, 1st Lien, Tranche B 8.860%, 06/08/11 681 547 Greenwood Racing 7.010%, 11/28/11 993 943 Healthsouth 7.320%, 03/10/13 635 611 Helix Energy Solutions Group 6.843%, 07/01/13 1,470 1,426 Hub International 8.203%, 06/13/14 1,019 967 Hub International, Delayed Draw 8.010%, 06/13/14 72 68 IAP Worldwide Services, 1st Lien 11.500%, 12/30/12 1,000 892 Kepler Holdings 10.698%, 06/30/09 1,000 990 Knology 7.480%, 04/13/12 1,000 955 Lake at Las Vegas (Synthetic) 15.460%, 06/20/12 120 72 Lake at Las Vegas Joint Venture 15.460%, 06/20/12 880 528 11.210%, 12/24/07 250 249 Level 3 Financing 7.610%, 03/01/14 1,500 1,430 Lifecare Holding (Rainier Acquisition) 8.200%, 08/11/12 997 896 Misys Hospital Systems 8.200%, 10/12/07 1,000 985 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 111 SCHEDULE OF INVESTMENTS (Unaudited) Enhanced Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Movie Gallery, 1st Lien 12.250%, 03/08/12 $ 479 $ 387 Movie Gallery, 1st Lien (Synthetic) (E) 0.000%, 03/08/12 20 15 Northwest Airlines (E) 0.000%, 08/21/08 1,000 945 Onex Carestream Finance 7.113%, 04/10/13 1,000 938 Orbitz Worldwide 8.340%, 07/25/14 1,000 955 Penton Media 7.240%, 02/01/13 493 449 Pinnacle Foods Group 7.948%, 04/02/14 998 940 Realogy (Synthetic) (E) 0.000%, 10/10/13 118 103 Realogy, Term B 8.240%, 10/10/13 882 768 Riverdeep Interactive Learning USA 7.948%, 12/20/13 1,000 991 Sabre 6.960%, 09/30/14 1,458 1,337 Serena Software 7.175%, 03/10/13 1,000 966 Sirva Worldwide (E) 0.000%, 12/01/10 1,000 669 Solo Cup 8.616%, 02/27/11 632 624 Spirit Finance 8.360%, 07/15/13 1,000 880 TPF Generation Holdings, LLC (Synthetic Revolver) 7.198%, 12/15/11 49 47 TPF Generation Holdings, LLC, 1st Lien 7.198%, 12/15/13 796 759 TPF Generation Holdings, LLC, 1st Lien (Synthetic) 7.198%, 12/15/13 156 148 Totes Isotoner, 1st Lien 8.248%, 01/31/13 1,000 970 Travelport, LLC (Synthetic) 7.448%, 08/23/13 167 155 Travelport, LLC, Ser B 7.448%, 08/23/13 833 788 Tribune, Tranche B 8.244%, 05/09/14 599 517 Tribune, Tranche X 7.744%, 05/09/09 373 364 US Airways Group 7.373%, 03/19/14 1,000 930 Univision Communications 7.210%, 08/15/14 483 444 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands)/Shares ($ Thousands) - -------------------------------------------------------------------------------- Univision Communications (G) 1.000%, 09/29/14 $ 17 $ 1 Venoco, 2nd Lien 9.125%, 05/07/14 2,000 1,940 Verint Systems 7.466%, 05/09/14 1,877 1,811 WM Bolthouse Farms, 1st Lien 7.500%, 12/17/12 1,485 1,457 Wide Open West Finance, 1st Lien (E) 0.000%, 06/30/14 1,000 955 Wilmar Opco, LLC (Tropicana) 7.448%, 01/03/12 1,000 963 -------------- Total Loan Participations (Cost $58,355) ($ Thousands) 55,292 -------------- MUTUAL FUNDS -- 24.3% SEI LIBOR Plus Portfolio, 5.830%++* 5,616,000 54,423 -------------- Total Mutual Funds (Cost $56,684) ($ Thousands) 54,423 -------------- MORTGAGE-BACKED SECURITIES -- 15.6% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 4.9% FHLMC CMO STRIPS, Ser 245, Cl IO, IO 5.000%, 05/15/37 392 106 FHLMC CMO, Ser 3153, Cl FX 5.002%, 12/15/07 548 544 FNMA 6.000%, 11/01/08-12/01/21 3,521 3,597 FNMA TBA 6.000%, 10/01/26-04/01/27 5,212 5,321 5.500%, 10/01/20-03/01/22 1,369 1,385 -------------- 10,953 -------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 10.7% American Tower Trust, Ser 2007-1A, Cl D (B) 5.957%, 04/15/37 250 234 Banc of America Funding, Ser 2005-F, Cl 4A1 (C) 5.351%, 12/01/07 550 542 Banc of America Funding, Ser 2006-D, Cl 3A1 (C) 5.565%, 12/01/07 493 495 Banc of America Large Loan, Ser 2007-BMB1, Cl A1 (B) (C) 5.162%, 12/25/07 199 199 Banc of America Mortgage Securities, Ser 2004-F, Cl 2A5 (C) 4.146%, 07/25/34 350 348 - -------------------------------------------------------------------------------- 112 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Banc of America Mortgage Securities, Ser 2005-A, Cl 2A1 (C) 4.459%, 02/25/35 $ 313 $ 314 Bear Stearns Adjustable Rate Mortgage Trust, Ser 2005-6, Cl 3A1 (C) 5.281%, 12/01/07 425 425 Bear Stearns Adjustable Rate Mortgage Trust, Ser 2005-9, Cl A1 (C) 4.625%, 12/01/07 536 528 Bear Stearns Adjustable Rate Mortgage Trust, Ser 2006-1, Cl A1 (C) 4.625%, 12/01/07 518 510 Bear Stearns Commercial Mortgage Trust, Ser 2001-TOP2, Cl A2 6.480%, 02/15/35 500 521 Citigroup Commercial Mortgage Trust, Ser 2007-FL3A, Cl J (B) (C) 5.602%, 12/30/07 155 145 Citigroup Mortgage Loan Trust, Ser 2006-AR1, Cl 1A1 (C) 4.900%, 10/25/35 526 523 Countrywide Alternative Loan Trust, Ser 2007-HY5R, Cl 2A1A (C) 5.544%, 12/01/07 797 779 Countrywide Home Loans, Ser 2005-HY10, Cl 3A1A (C) 5.379%, 12/01/07 523 515 Credit Suisse First Boston Mortgage Securities, Ser 2000-C1, Cl A2 7.545%, 04/15/62 500 522 Crown Castle Towers LLC, Ser 2006-1A, Cl E (B) 6.065%, 11/15/36 380 362 Crusade Global Trust, Ser 2007-1, Cl A1 (C) 5.259%, 04/19/38 303 298 Diversified REIT Trust, Ser 1999-1A, Cl A2 6.780%, 03/18/11 127 128 First Horizon Alternative Mortgage Trust, Ser 2005-AA3, Cl 3A1 (C) 5.351%, 12/01/07 303 300 First Horizon Mortgage Pass-Through Certificate, Ser 2005-AR4, Cl 2A1 (C) 5.328%, 10/25/35 251 251 First Union-Chase Commercial Mortgage, Ser 1999-C2, Cl A2 6.645%, 06/15/31 214 217 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- GMAC Mortgage Loan Trust, Ser 2006-AR1, Cl 1A1 (C) 5.596%, 12/01/07 $ 519 $ 521 GS Mortgage Securities, Ser 2007-EOP, Cl K (B) (C) 5.728%, 12/06/07 75 68 GSR Mortgage Loan Trust, Ser 2006-AR1, Cl 2A2 (C) 5.179%, 01/25/36 400 398 GSR Mortgage Loan Trust, Ser 2006-AR2, Cl 3A1 (C) 5.754%, 04/25/36 73 74 GSR Mortgage Loan Trust, Ser 2007-AR2, Cl 1A1 (C) 5.790%, 05/25/37 531 533 Granite Master Issuer PLC, Ser 2005-1, Cl A3 (C) 5.668%, 12/20/24 73 72 Granite Master Issuer PLC, Ser 2006-1A, Cl A5 (B) (C) 5.019%, 01/25/08 255 247 Harborview Mortgage Loan Trust, Ser 2005-14, Cl 3A1A (C) 5.301%, 12/19/35 396 396 Holmes Master Issuer PLC, Ser 2007-1, Cl 1C1 (C) 5.523%, 01/16/08 100 99 Holmes Master Issuer PLC, Ser 2007-2A, Cl 1C (C) 5.473%, 01/16/08 165 163 JPMorgan Mortgage Trust, Ser 2007-A3, Cl 1A1 (C) 5.483%, 12/01/07 483 481 JPMorgan Mortgage Trust, Ser 2007-A4, Cl 1A1 (C) 5.482%, 06/25/37 477 473 MLCC Mortgage Investors, Ser 2006-1, Cl 2A1 (C) 5.383%, 12/01/07 303 305 Master Adjustable Rate Mortgages Trust, Ser 2005-6, Cl 5A1 (C) 5.041%, 07/25/35 534 532 Merrill Lynch Mortgage Investors, Ser 2005-A1, Cl 2A1 (C) 4.523%, 12/25/34 337 336 Merrill Lynch Mortgage Investors, Ser 2005-A9, Cl 2A1A (C) 5.134%, 12/01/07 640 636 Merrill Lynch Mortgage Investors, Ser 2005-A9, Cl 2A1E (C) 5.134%, 12/25/35 192 192 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 113 SCHEDULE OF INVESTMENTS (Unaudited) Enhanced Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Merrill Lynch Mortgage-Backed Securities Trust, Ser 2007-2, Cl 1A1 (C) 5.800%, 12/01/07 $ 556 $ 557 Morgan Stanley Capital I, Ser 2007-XLFA, Cl C (B) (C) 4.812%, 10/15/20 240 224 MortgageIT Trust, Ser 2005-1, Cl 2A (C) 4.250%, 02/25/35 547 525 MortgageIT Trust, Ser 2005-4, Cl A1 (C) 5.069%, 12/25/07 515 502 Pendeford Master Issuer PLC, Ser 2007-1A, Cl 1C (B) (C) 5.179%, 05/12/59 225 224 Permanent Master Issuer PLC, Ser 2007-1, Cl 1C (C) 5.413%, 07/15/42 150 149 Residential Funding Mortgage Securities, Ser 2005-SA5, Cl 2A (C) 5.334%, 12/01/07 190 190 Residential Funding Mortgage Securities, Ser 2006-SA1, Cl 1A1 (C) 5.676%, 02/25/36 168 169 Residential Funding Mortgage Securities, Ser 2007-SA2, Cl 2A2 (C) 5.677%, 12/01/07 362 364 Residential Funding Mortgage Securities, Ser 2007-SA3, Cl 2A1 (C) 5.784%, 12/01/07 479 479 Sequoia Mortgage Trust, Ser 2007-2, Cl 2AA1 (C) 5.805%, 12/01/07 623 623 Washington Mutual Mortgage Pass-Through Certificate, Ser 2004-AR5, Cl A6 (C) 3.842%, 12/01/07 600 596 Washington Mutual Mortgage Pass-Through Certificate, Ser 2005-AR14, Cl 1A4 (C) 5.056%, 12/25/35 506 504 Washington Mutual Mortgage Pass-Through Certificate, Ser 2005-AR3, Cl A2 (C) 4.636%, 12/01/07 460 457 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-EE, Cl 2A2 (C) 3.991%, 12/01/07 450 444 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-Z, Cl 2A1 (C) 4.580%, 12/01/07 $ 545 $ 544 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR16, Cl 3A2 (C) 4.995%, 12/01/07 142 142 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR16, Cl 6A3 (C) 5.000%, 12/01/07 182 181 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR4, Cl 2A2 (C) 4.524%, 12/01/07 524 518 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR10, Cl 2A1 (C) 5.646%, 12/01/07 624 627 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR12, Cl 2A1 (C) 6.102%, 09/25/36 311 311 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR13, Cl A2 (C) 5.761%, 09/25/36 529 532 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR2, Cl 2A3 (C) 5.101%, 03/25/36 191 190 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR5, Cl 2A1 (C) 5.533%, 12/01/07 447 449 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR6, Cl 3A1 (C) 5.093%, 12/01/07 414 413 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR8, Cl 2A1 (C) 5.240%, 12/01/07 325 325 -------------- 23,921 -------------- Total Mortgage-Backed Securities (Cost $34,840) ($ Thousands) 34,874 -------------- - -------------------------------------------------------------------------------- 114 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- ASSET-BACKED SECURITIES -- 11.4% AUTOMOTIVE -- 4.3% Aesop Funding II LLC, Ser 2003-3A, Cl A3 (B) 3.720%, 07/20/09 $ 330 $ 328 Aesop Funding II LLC, Ser 2005-1A, Cl A1 (B) 3.950%, 04/20/09 408 406 AmeriCredit Automobile Receivables Trust, Ser 2004-BM, Cl A4 2.670%, 03/07/11 211 210 AmeriCredit Automobile Receivables Trust, Ser 2006-1, Cl A3 5.110%, 10/06/10 226 225 AmeriCredit Automobile Receivables Trust, Ser 2006-1, Cl B 5.200%, 03/06/11 195 193 AmeriCredit Automobile Receivables Trust, Ser 2007-AX, Cl A4 (C) 4.718%, 10/06/13 285 279 AmeriCredit Automobile Receivables Trust, Ser 2007-CM, Cl A4A 5.550%, 04/07/14 500 504 AmeriCredit Automobile Receivables Trust, Ser 2007-BF, Cl A3A 5.160%, 04/06/12 300 302 AmeriCredit Prime Automobile Receivables Trust, Ser 2007-2M, Cl A3A 5.220%, 06/08/12 485 487 Banc of America Securities Auto Trust, Ser 2005-WF1, Cl A3 3.990%, 08/18/09 123 123 Capital Auto Receivables Asset Trust, Ser 2007-1, Cl B 5.150%, 09/17/12 230 225 Capital Auto Receivables Asset Trust, Ser 2007-3, Cl A3A 5.020%, 09/15/11 200 201 Capital One Auto Finance Trust, Ser 2005-C, Cl A4A 4.710%, 06/15/12 115 115 Capital One Auto Finance Trust, Ser 2007-C, Cl A3A 5.130%, 04/16/12 490 489 Capital One Prime Auto Receivables Trust, Ser 2007-C, Cl A3 4.890%, 01/17/12 500 502 Carmax Auto Owner Trust, Ser 2005-1, Cl A3 4.130%, 05/15/09 25 25 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Carmax Auto Owner Trust, Ser 2007-1, Cl C 5.530%, 07/15/13 $ 50 $ 49 Chase Manhattan Auto Owner Trust, Ser 2005-A, Cl A4 3.980%, 04/15/11 500 496 Ford Credit Auto Owner Trust, Ser 2006-A, Cl C 5.480%, 09/15/11 250 253 Ford Credit Auto Owner Trust, Ser 2007-B, Cl A3A 5.150%, 11/15/11 230 232 GE Dealer Floorplan Master Note Trust, Ser 2006-2, Cl C (C) 5.170%, 04/20/13 120 112 Harley-Davidson Motorcycle Trust, Ser 2007-1, Cl C 5.540%, 04/15/15 105 104 Harley-Davidson Motorcycle Trust, Ser 2005-2, Cl A2 4.070%, 02/15/12 750 746 Honda Auto Receivables Owners Trust, Ser 2004-3, Cl A4 3.280%, 02/18/10 196 195 Honda Auto Receivables Owners Trust, Ser 2005-1, Cl A4 3.820%, 05/21/10 291 289 Hyundai Auto Receivables Trust, Ser 2007-A, Cl A3B 5.052%, 01/17/12 140 139 Merrill Auto Trust Securitization, Ser 2007-1, Cl C 5.960%, 12/15/13 400 400 Nissan Auto Receivables Owner Trust, Ser 2006-A, Cl A4 4.770%, 07/15/11 350 350 Nissan Auto Receivables Owner Trust, Ser 2007-B, Cl A3 5.030%, 05/16/11 135 136 Santander Drive Auto Receivables Trust, Ser 2007-1, Cl A2 5.200%, 12/15/10 375 375 Swift Master Auto Receivables Trust, Ser 2007-2 Cl A (C) 5.302%, 10/15/12 430 427 Superior Wholesale Inventory Financing Trust, Ser 2007-AE1, Cl B (C) 4.952%, 12/15/07 25 24 Superior Wholesale Inventory Financing Trust, Ser 2007-AE1, Cl C (C) 5.252%, 12/13/07 45 44 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 115 SCHEDULE OF INVESTMENTS (Unaudited) Enhanced Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- USAA Auto Owner Trust, Ser 2007-1, Cl A3 5.430%, 10/17/11 $ 260 $ 263 USAA Auto Owner Trust, Ser 2007-2, Cl A3 4.900%, 02/15/12 245 246 Volkswagen Auto Lease Trust, Ser 2006-A, Cl A3 5.500%, 09/21/09 225 226 -------------- 9,720 -------------- CREDIT CARDS -- 4.6% Advanta Business Card Master Trust, Ser 2005-C1, Cl C1 (C) 5.250%, 12/20/07 400 398 Advanta Business Card Master Trust, Ser 2007-B1, Cl B (C) 4.990%, 12/22/14 400 369 American Express Credit Account Master Trust, Ser 2007-2, Cl B (C) 4.832%, 09/15/16 145 137 Bank One Issuance Trust, Ser 2003-B1, Cl B1 (C) 5.022%, 12/15/07 285 285 Bank One Issuance Trust, Ser 2003-C2, Cl C2 (C) 5.792%, 12/16/07 500 501 Bank of America Credit Card Trust, Ser 2007-B5, Cl B5 (C) 5.252%, 03/15/12 470 467 Bank of America Credit Card Trust, Ser 2007-C1, Cl C1 (C) 4.942%, 12/26/07 450 415 Cabela's Master Credit Card Trust, Ser 2003-1A, Cl A (C) 4.952%, 12/04/07 500 500 Capital One Multi-Asset Execution Trust, Ser 2004-C4, Cl C4 (C) 5.302%, 12/02/07 650 634 Capital One Multi-Asset Execution Trust, Ser 2005-C1, Cl C1 (C) 5.052%, 02/15/13 350 340 Capital One Multi-Asset Execution Trust, Ser 2007-C2, Cl C2 (C) 4.952%, 12/15/07 400 375 Chase Issuance Trust, Ser 2005-C2, Cl C2 (C) 5.092%, 01/15/15 400 378 Chase Issuance Trust, Ser 2007-A14, Cl A14 (C) 4.902%, 12/27/07 650 650 Chase Issuance Trust, Ser 2007-A15, Cl A 4.960%, 09/17/12 500 508 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Citibank Credit Card Issuance Trust, Ser 2001-C1, Cl C1 (C) 6.323%, 01/15/10 $ 400 $ 400 Citibank Credit Card Issuance Trust, Ser 2007-B5, Cl B5 (C) 5.384%, 11/07/14 500 489 Citibank Credit Card Issuance Trust, Ser 2007-B6, Cl B6 5.000%, 11/08/12 340 344 First National Master Note Trust, Ser 2007-1, Cl B (C) 4.852%, 04/15/13 320 313 First USA Credit Card Master Trust, Ser 1998-2, Cl C (B) 6.800%, 02/18/11 550 550 GE Capital Credit Card Master Note Trust, Ser 2007-3, Cl C (C) 4.952%, 06/15/13 500 483 Household Affinity Credit Card Master Note Trust, Ser 2003-1, Cl B (C) 5.202%, 12/15/07 475 475 MBNA Credit Card Master Note Trust, Ser 2006-A1, Cl A1 (C) 4.900%, 07/15/11 400 403 MBNA Credit Card Master Note Trust, Ser 2006-C2, Cl C2 (C) 4.952%, 08/15/13 300 288 Washington Mutual Master Note Trust, Ser 2006-C3A, C3A (B) (C) 5.032%, 12/10/07 535 497 -------------- 10,199 -------------- MORTGAGE RELATED SECURITIES -- 1.3% Ace Securities, Ser 2006-HE1, Cl A2A (C) 4.869%, 02/25/36 31 31 First Franklin Mortgage Loan Asset, Ser 2006-FF18, Cl A2B (C) 4.899%, 12/25/37 275 257 First Franklin Mortgage Loan Asset, Ser 2007-FF1, Cl M2 (C) 5.049%, 12/26/07 285 121 Merrill Lynch First Franklin Mortgage Loan Trust, Ser 2007-4, Cl M6 (C) 5.489%, 07/25/37 100 14 Morgan Stanley Capital I, Ser 2007-HE2, Cl M2 (C) 5.049%, 01/25/37 150 93 Morgan Stanley Home Equity Loans, Ser 2005-3, Cl M1 (C) 5.239%, 08/25/35 350 311 - -------------------------------------------------------------------------------- 116 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Morgan Stanley Home Equity Loans, Ser 2005-4, Cl M1 (C) 5.199%, 09/25/35 $ 370 $ 321 Option One Mortgage Loan Trust, Ser 2005-3, Cl M1 (C) 5.259%, 12/25/07 330 307 Option One Mortgage Loan Trust, Ser 2005-5, Cl M1 (C) 5.179%, 12/27/07 470 440 Option One Mortgage Loan Trust, Ser 2007-FXD2, Cl 2A1 (F) 5.900%, 03/25/37 298 298 Option One Mortgage Loan Trust, Ser 2007-HL1, Cl 2A1 (C) 4.909%, 12/26/07 270 263 Residential Asset Securities, Ser 2005-KS12, Cl M1 (C) 5.229%, 12/25/07 375 338 Securitized Asset-Backed Receivables LLC, Ser 2007-NC2, Cl M2 (C) 5.049%, 01/25/37 145 68 -------------- 2,862 -------------- OTHER ASSET-BACKED SECURITIES -- 1.2% ACAS Business Loan Trust, Ser 2006-1A, Cl A, (B) (C) 5.270%, 11/27/19 450 436 ACAS Business Loan Trust, Ser 2007-1A, Cl C (B) (C) 5.728%, 01/24/08 530 496 Cit Equipment Collateral, Ser 2006-VT1, Cl B 5.230%, 02/20/13 131 131 Domino's Pizza Master Issuer LLC, Ser 2007-1, Cl A2 (B) 5.261%, 04/25/37 400 395 John Deere Owner Trust, Ser 2007-A, Cl A2 5.210%, 10/15/09 85 85 Lambda Finance, Ser 2005-1A, Cl A3 (B) (C) 5.099%, 11/15/29 400 393 Marlin Leasing Receivables LLC, Ser 2006-1A, Cl A2 (B) 5.430%, 11/17/08 122 122 Peco Energy Transition Trust, Ser 2000-A, Cl A3 7.625%, 03/01/10 295 305 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Sierra Receivables Funding, Ser 2007-2A, Cl A2 (B) (C) 5.716%, 12/01/07 $ 500 $ 492 -------------- 2,855 -------------- Total Asset-Backed Securities (Cost $26,512) ($ Thousands) 25,636 -------------- CORPORATE OBLIGATIONS -- 8.3% CONSUMER DISCRETIONARY -- 0.9% CBS 7.700%, 07/30/10 250 267 COX Communications 4.625%, 01/15/10 300 299 Daimler Finance NA LLC 7.200%, 09/01/09 300 311 Macy's Retail Holdings 6.300%, 04/01/09 300 303 5.350%, 03/15/12 225 219 Time Warner Cable (B) 5.400%, 07/02/12 500 503 -------------- 1,902 -------------- CONSUMER STAPLES -- 0.4% Altria Group 7.000%, 11/04/13 250 281 General Mills (C) 5.310%, 01/23/08 400 397 Miller Brewing (B) 4.250%, 08/15/08 300 298 -------------- 976 -------------- ENERGY -- 0.2% Canadian Natural Resources 5.700%, 05/15/17 150 150 KeySpan 7.625%, 11/15/10 300 326 -------------- 476 -------------- FINANCIALS -- 5.3% Ameriprise Financial 5.350%, 11/15/10 300 308 Banco Santander Chile (B) (C) 6.074%, 12/09/07 450 449 CIT Group 3.375%, 04/01/09 300 288 Capital One Financial MTN 5.700%, 09/15/11 300 288 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 117 SCHEDULE OF INVESTMENTS (Unaudited) Enhanced Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Capmark Financial Group (B) (C) 5.529%, 05/10/10 $ 500 $ 400 Citigroup (C) 5.994%, 12/11/07 300 289 Comerica Bank (C) 4.731%, 12/19/07 275 274 Countrywide Financial MTN (C) 5.384%, 01/05/08 500 377 Everest Reinsurance Holdings 8.750%, 03/15/10 295 323 Everest Reinsurance Holdings (C) 6.600%, 05/15/37 450 410 General Electric Capital (C) 5.101%, 01/28/08 275 274 Genworth Global Funding MTN 5.200%, 10/08/10 400 408 Goldman Sachs Capital III (C) 6.350%, 09/29/49 500 421 Goldman Sachs Group (C) 5.045%, 02/06/08 500 479 Hartford Financial Services Group 7.900%, 06/15/10 250 272 Huntington National Bank 4.375%, 01/15/10 300 300 International Lease Finance MTN, Ser P (C) 5.643%, 01/15/10 500 500 JPMorgan Chase Capital XXI, Ser U (C) 5.844%, 02/02/37 550 436 Lehman Brothers Holdings MTN, Ser G (C) 5.129%, 11/10/09 500 486 Liberty Property LP+ 7.250%, 03/15/11 300 320 Monumental Global Funding (B) (C) 5.443%, 01/16/08 450 450 Morgan Stanley MTN, Ser G (C) 5.543%, 01/04/08 400 381 Prudential Financial MTN 5.100%, 12/14/11 300 304 RSHB Capital 7.175%, 05/16/13 40 41 6.299%, 05/15/17 (B) 205 192 Reinsurance Group of America 5.625%, 03/15/17 300 303 State Street (C) 5.084%, 04/30/12 285 283 Textron Financial MTN 4.600%, 05/03/10 350 357 UBS Luxembourg (C) 6.230%, 02/11/15 130 129 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Union Planters 7.750%, 03/01/11 $ 250 $ 272 Unitrin 6.000%, 05/15/17 260 264 4.875%, 11/01/10 300 306 VTB 24 Capital PLC MTN, Ser E (C) 6.540%, 12/07/09 200 194 Wachovia (C) 5.814%, 12/15/07 425 417 Western Union 5.400%, 11/17/11 300 306 Willis North America 5.125%, 07/15/10 300 293 -------------- 11,794 -------------- HEALTH CARE -- 0.4% AstraZeneca (C) 6.004%, 09/11/09 600 601 Wyeth 6.950%, 03/15/11 250 268 -------------- 869 -------------- INDUSTRIALS -- 0.1% Continental Airlines, Ser 061G (C) 5.971%, 06/02/13 300 274 -------------- SOVEREIGN -- 0.1% Republic of Trinidad & Tobago 9.875%, 10/01/09 150 165 -------------- TELECOMMUNICATION SERVICES -- 0.4% Corning 6.050%, 06/15/15 300 310 Telecom Italia Capital (C) 5.819%, 01/18/08 300 294 Vodafone Group PLC (C) 5.320%, 02/27/08 300 293 -------------- 897 -------------- UTILITIES -- 0.5% Dominion Resources, Ser B (C) 5.050%, 02/14/08 450 449 Ohio Power (C) 5.424%, 04/05/10 270 267 PSEG Power 3.750%, 04/01/09 300 297 Southern, Ser A 5.300%, 01/15/12 175 178 -------------- 1,191 -------------- Total Corporate Obligations (Cost $19,066) ($ Thousands) 18,544 -------------- - -------------------------------------------------------------------------------- 118 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CASH EQUIVALENT -- 8.8% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++* 19,798,511 $ 19,799 -------------- Total Cash Equivalent (Cost $19,799) ($ Thousands) 19,799 -------------- TIME DEPOSITS -- 5.7% Barclays Bank London 4.750%, 01/13/08 $ 3,030 3,030 Lloyds TSB London 5.080%, 01/03/08 3,531 3,531 Royal Bank of Canada 4.600%, 01/11/08 1,476 1,476 Royal Bank of Scotland 4.740%, 02/12/08 2,588 2,588 UBS London 5.000%, 12/12/07 2,028 2,028 -------------- Total Time Deposits (Cost $12,652) ($ Thousands) 12,653 -------------- U.S. TREASURY OBLIGATION (A) -- 0.2% U.S. Treasury Bill 3.897%, 01/24/08 500 498 -------------- Total U.S. Treasury Obligation (Cost $497) ($ Thousands) 498 -------------- CERTIFICATE OF DEPOSIT -- 0.0% Sovereign Bank 4.000%, 02/01/08 100 100 -------------- Total Certificate of Deposit (Cost $100) ($ Thousands) 100 -------------- REPURCHASE AGREEMENT (D) -- 0.9% Merrill Lynch 4.640%, dated 11/30/07, to be repuchased on 12/01/07, repurchase price $2,100,267 (collateralized by a FNMA obligation, par value $2,110,000, 6.000%, 09/01/37, with total market value $2,145,524) 2,100 2,100 -------------- Total Repurchase Agreement (Cost $2,100) ($ Thousands) 2,100 -------------- Total Investments -- 99.9% (Cost $230,605) ($ Thousands) $ 223,919 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - ------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - ------------------------------------------------------------------------- 90-Day Euro$ 30 Dec-2007 $ 21 90-Day Euro$ 30 Dec-2010 82 90-Day Euro$ (60) Sep-2008 (197) U.S. 2 Year Treasury Note 33 Mar-2008 13 U.S. 5 Year Treasury Note (18) Mar-2008 2 U.S. 10 Year Treasury Note (109) Mar-2008 7 ------ $ (72) ====== A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY CURRENCY APPRECIATION MATURITY TO DELIVER TO RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 12/11/07-12/12/07 SEK 11,090 EUR 1,198 $ 22 12/12/07 AUD 225 GBP 98 2 12/12/07 CHF 1,595 EUR 968 7 12/12/07 EUR 211 CHF 349 (1) 12/12/07 EUR 1,937 SEK 17,970 (30) 12/12/07 GBP 748 AUD 1,715 (22) 12/12/07 USD 1,407 CAD 1,310 (96) 12/12/07-03/12/08 CHF 13,000 GBP 5,426 (425) 12/12/07-03/12/08 CHF 2,700 NZD 3,129 (19) 12/12/07-03/12/08 CHF 9,800 USD 8,318 (408) 12/12/07-03/12/08 GBP 5,464 CHF 13,000 346 12/12/07-03/12/08 NZD 3,090 CHF 2,700 49 12/12/07-03/12/08 USD 8,358 CHF 9,800 368 12/12/07-04/10/08 AUD 5,881 JPY 592,000 207 12/12/07-04/10/08 JPY 592,000 AUD 5,880 (207) 12/12/07-05/13/08 GBP 7,631 JPY 1,759,000 356 12/12/07-05/13/08 JPY 2,035,000 GBP 8,765 (541) 12/12/07-05/13/08 JPY 939,000 USD 8,226 (312) 12/12/07-05/13/08 USD 8,317 JPY 939,000 221 ------ $ (483) ====== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 119 SCHEDULE OF INVESTMENTS (Unaudited) Enhanced Income Fund (Concluded) November 30, 2007 A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - ------------------------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.5400% (6.480% per annum) times the notional amount of the ABX.HE.A 06-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Bank of America) 07/25/45 2,750 $ (1,059) Fund receives monthly payment of 0.5700% (6.840% per annum) times the notional amount of JSC Gazprom, 8.625%, 04/28/34. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Goldman Sachs) 06/20/12 1,700 (68) Fund receives monthly payment of 0.8600% (10.320% per annum) times the notional amount of JSC Gazprom, 8.625%, 04/28/34. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Goldman Sachs) 06/20/17 1,000 65 Fund receives monthly payment of 0.7900% (9.480% per annum) times the notional amount of MBI Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Goldman Sachs) 09/20/12 500 (64) Fund receives monthly payment of 0.3750% (4.500% per annum) times the notional amount of Pemex Project Funding Master Trust. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Goldman Sachs) 06/20/12 1,700 (18) Fund receives monthly payment of 0.5699% (6.839% per annum) times the notional amount of Pemex Project Funding Master Trust. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Goldman Sachs) 06/20/17 1,000 22 -------- $ (1,122) ======== - -------------------------------------------------------------------------------------------------- INTEREST RATE SWAP - -------------------------------------------------------------------------------------------------- Receive fixed rate of 5.055% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Goldman Sachs) 09/14/17 735 $ (26) ======== - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $224,086 ($ Thousands). * Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (B) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (C) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (D) Tri-Party Repurchase Agreement. (E) Unsettled Position -- Interest rate will not be known until settlement. (F) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (G) Bank Loan AUD -- Australian Dollar CAD -- Canadian Dollar CHF -- Swiss Franc Cl -- Class CMO -- Collateralized Mortgage Obligation EUR -- Euro FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GBP -- British Pound Sterling IO -- Interest Only JPY -- Japanese Yen LLC -- Limited Liability Company LOC -- Line of Credit Ltd. -- Limited MTN -- Medium Term Note NZD -- New Zealand Dollar PLC -- Public Liability Company SEK -- Swedish Krona Ser -- Series STRIPS -- Separately Traded Registered Interest and Principal Securities TBA -- To Be Announced USD -- United States Dollar The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 120 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Core Fixed Income Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Mortgage-Backed Securities 45.4% Short-Term Investments 20.4% U.S. Treasury Obligations 15.0% Financials 8.6% Asset-Backed Securities 2.3% Industrials 1.8% U.S. Government Agency Obligations 1.2% Energy 1.2% Utilities 1.0% Consumer Discretionary 0.9% Telecommunication Services 0.8% Sovereign Bonds 0.5% Health Care 0.4% Consumer Staples 0.1% Materials 0.1% Purchased Swaptions 0.1% Information Technology 0.1% Certificates of Deposit 0.1% Municipal Bonds 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- MORTGAGE-BACKED SECURITIES -- 62.7% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 43.0% FHLB CMO, Ser 2014-17, Cl I 5.340%, 03/20/14 $ 7,521 $ 7,521 FHLB CMO, Ser 2015-VN, Cl A 5.460%, 11/27/15 13,741 13,742 FHLMC 9.750%, 10/01/14 4 4 8.500%, 04/01/09 4 4 7.500%, 11/01/17 to 06/01/32 999 1,067 7.000%, 11/01/15 to 12/01/37 4,491 4,668 7.000%, 12/01/07 (F) 98 99 6.500%, 10/01/16 to 10/01/36 33,829 34,903 6.430%, 10/01/37 1,827 1,874 6.000%, 01/01/13 to 11/01/37 41,784 42,498 5.741%, 03/15/31 (E) 4,243 1,373 5.500%, 09/01/13 to 03/01/37 127,468 128,405 5.000%, 10/01/14 to 12/01/34 59,015 58,647 4.500%, 05/01/18 to 08/01/20 11,491 11,356 4.000%, 07/01/18 to 01/01/34 49,289 47,364 FHLMC ARM 6.676%, 12/01/07 4,639 4,754 6.589%, 12/01/07 3,931 4,049 6.315%, 03/01/37 11,074 11,266 6.178%, 01/01/37 8,845 9,066 6.157%, 01/01/37 3,458 3,541 6.149%, 09/01/37 4,642 4,738 6.141%, 08/01/37 3,812 3,890 6.009%, 04/01/37 5,250 5,342 5.940%, 04/01/37 5,181 5,273 5.920%, 04/01/37 22,515 22,884 5.904%, 04/01/37 8,509 8,630 5.895%, 01/01/37 6,044 6,116 5.876%, 04/01/36 3,407 3,461 5.767%, 05/01/37 2,425 2,457 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- 5.703%, 05/01/37 $ 5,916 $ 6,009 5.699%, 03/01/36 1,748 1,754 5.541%, 06/01/37 5,114 5,156 5.188%, 12/01/35 1,048 1,052 5.126%, 01/01/36 6,452 6,399 FHLMC CMO, Ser 1, Cl Z 9.300%, 04/15/19 32 34 FHLMC CMO, Ser 1081, Cl K 7.000%, 05/15/21 617 654 FHLMC CMO, Ser 1101, Cl M 6.950%, 07/15/21 323 322 FHLMC CMO, Ser 1611, Cl Z 6.500%, 11/15/23 10,293 10,674 FHLMC CMO, Ser 1983, Cl Z 6.500%, 12/15/23 1,399 1,444 FHLMC CMO, Ser 2043, Cl CJ 6.500%, 04/15/28 2,749 2,841 FHLMC CMO, Ser 2256, Cl PA 6.000%, 11/15/26 52 52 FHLMC CMO, Ser 2389, Cl CD 6.000%, 03/15/16 2,239 2,263 FHLMC CMO, Ser 2542, Cl ES 5.000%, 12/15/17 8,683 8,671 FHLMC CMO, Ser 2544, Cl IW, IO 5.500%, 03/15/26 1,081 20 FHLMC CMO, Ser 2558, Cl BD 5.000%, 01/15/18 3,681 3,691 FHLMC CMO, Ser 2579, Cl PI, IO 5.500%, 03/15/27 FHLMC CMO, Ser 2583, Cl TD 4.500%, 12/15/13 3,429 3,385 FHLMC CMO, Ser 2590, Cl NU 5.000%, 06/15/17 1,808 1,811 FHLMC CMO, Ser 2603, Cl KT 4.750%, 07/15/14 3,622 3,617 FHLMC CMO, Ser 2614, Cl TD 3.500%, 05/15/16 3,030 2,966 FHLMC CMO, Ser 2623, Cl AJ 4.500%, 12/01/07 2,531 2,492 FHLMC CMO, Ser 2631, Cl MC 5.000%, 02/15/32 484 471 FHLMC CMO, Ser 2631, Cl MT 3.500%, 01/15/22 1,277 1,273 FHLMC CMO, Ser 2645, Cl MK 3.500%, 07/15/22 2,456 2,445 FHLMC CMO, Ser 2672, Cl HA 4.000%, 09/15/16 1,854 1,817 FHLMC CMO, Ser 2725, Cl PC 4.500%, 05/15/28 1,660 1,660 FHLMC CMO, Ser 2727, Cl PE 4.500%, 07/15/32 11,019 10,589 FHLMC CMO, Ser 2733, Cl ME 5.000%, 01/15/34 6,302 5,922 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 121 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FHLMC CMO, Ser 2735, Cl OG 5.000%, 08/15/32 $ 1,517 $ 1,487 FHLMC CMO, Ser 2735, Cl PG 5.500%, 09/15/32 524 530 FHLMC CMO, Ser 2776, Cl AC 5.000%, 09/15/31 1,276 1,254 FHLMC CMO, Ser 2777, Cl KB 5.000%, 03/15/32 2,763 2,683 FHLMC CMO, Ser 2778, Cl JD 5.000%, 12/15/32 2,201 2,146 FHLMC CMO, Ser 2780, Cl TB 3.000%, 12/15/24 1,996 1,967 FHLMC CMO, Ser 2793, Cl GE 5.500%, 11/15/32 437 441 FHLMC CMO, Ser 2809, Cl HX, IO 6.000%, 10/15/24 878 11 FHLMC CMO, Ser 2841, Cl BD 4.000%, 12/01/07 145 142 FHLMC CMO, Ser 2883, Cl HK 5.000%, 04/15/32 1,144 1,135 FHLMC CMO, Ser 2945, Cl SA (F) 3.920%, 12/15/07 5,990 6,021 FHLMC CMO, Ser 2960, Cl NC 5.500%, 10/15/32 492 497 FHLMC CMO, Ser 2975, Cl EA 5.000%, 12/01/07 1,960 1,966 FHLMC CMO, Ser 3000, Cl PA 3.900%, 01/15/23 3,187 3,146 FHLMC CMO, Ser 3017, Cl TA 4.500%, 08/15/35 3,738 3,702 FHLMC CMO, Ser 3019, Cl VM 5.000%, 08/15/16 2,035 2,041 FHLMC CMO, Ser 3020, Cl MA 5.500%, 04/15/27 4,472 4,502 FHLMC CMO, Ser 3034, Cl EH 5.500%, 12/15/34 5,405 5,470 FHLMC CMO, Ser 3035, Cl PA 5.500%, 09/15/35 1,522 1,543 FHLMC CMO, Ser 3062, Cl LC 5.500%, 11/15/28 2,492 2,521 FHLMC CMO, Ser 3075, Cl PA 5.500%, 07/15/25 1,666 1,674 FHLMC CMO, Ser 3078, Cl PA 5.500%, 07/15/24 2,194 2,205 FHLMC CMO, Ser 3104, Cl QC 5.000%, 09/15/31 2,782 2,753 FHLMC CMO, Ser 3115, Cl MB 5.500%, 12/15/20 819 829 FHLMC CMO, Ser 3135, Cl JA 6.000%, 09/15/27 5,178 5,239 FHLMC CMO, Ser 3138, Cl PA 5.500%, 02/15/27 5,004 5,038 FHLMC CMO, Ser 3151, Cl PA 6.000%, 12/01/07 6,724 6,819 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FHLMC CMO, Ser 3164, Cl NA 6.000%, 12/01/07 $ 4,808 $ 4,881 FHLMC CMO, Ser 3164, Cl NC 6.000%, 12/15/32 537 553 FHLMC CMO, Ser 3167, Cl QA 6.000%, 10/15/26 10,860 11,029 FHLMC CMO, Ser 3171, Cl NE 6.000%, 12/01/07 2,502 2,539 FHLMC CMO, Ser 3178, Cl MA 6.000%, 10/15/26 3,069 3,111 FHLMC CMO, Ser 3184, Cl PA 5.500%, 02/15/27 1,244 1,253 FHLMC CMO, Ser 3192, Cl GA 6.000%, 03/15/27 3,909 3,962 FHLMC CMO, Ser 3205, Cl PC 6.000%, 09/15/32 4,464 4,556 FHLMC CMO, Ser 3216, Cl NA 6.000%, 05/15/28 3,355 3,407 FHLMC CMO, Ser 3268, Cl HC 5.000%, 12/15/32 1,902 1,864 FHLMC CMO, Ser 3288, Cl PA 5.500%, 05/15/29 6,223 6,282 FHLMC CMO, Ser 3289, Cl PB 5.000%, 11/15/29 2,979 2,973 FHLMC CMO, Ser 3298, Cl VB 5.000%, 11/15/25 2,051 1,936 FHLMC CMO, Ser 3300, Cl PB 5.500%, 02/15/31 2,086 2,108 FHLMC CMO, Ser 3305, Cl PD 5.500%, 11/15/35 1,788 1,763 FHLMC CMO, Ser 3312, Cl AP 5.500%, 11/15/25 2,220 2,238 FHLMC CMO, Ser 3316, Cl HA 5.000%, 07/15/35 6,692 6,663 FHLMC CMO, Ser 3316, Cl PB 5.500%, 03/15/31 993 1,004 FHLMC CMO, Ser 3325, Cl JL 5.500%, 06/15/37 13,923 14,034 FHLMC CMO, Ser 3326, Cl PC 5.500%, 08/15/32 886 880 FHLMC CMO, Ser 3331, Cl BP 5.500%, 02/15/31 4,572 4,604 FHLMC CMO, Ser 3347, Cl PA 5.000%, 06/15/28 4,127 4,145 FHLMC CMO, Ser 3347, Cl PC 5.000%, 07/15/33 15,709 15,328 FHLMC CMO, Ser 3347, Cl PD 5.000%, 09/15/35 3,488 3,307 FHLMC CMO, Ser 3349, Cl BP 6.000%, 03/15/32 5,330 5,457 FHLMC CMO, Ser 3351, Cl PK 5.500%, 01/15/32 10,307 10,431 FHLMC CMO, Ser 3372, Cl BD 4.500%, 10/15/22 2,533 2,437 - -------------------------------------------------------------------------------- 122 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FHLMC CMO, Ser 3790, Cl TN 4.000%, 05/15/24 $ 2,779 $ 2,572 FHLMC TBA 6.500%, 01/01/32 3,519 3,616 6.000%, 12/01/33 to 01/12/35 45,603 46,287 5.500%, 01/01/33 8,000 8,013 5.000%, 01/01/34 7,900 7,752 FHLMC, Ser 2588, Cl LG 5.500%, 03/15/32 FHLMC, Ser 2825, Cl QN 5.500%, 09/15/32 3,958 3,927 FHLMC, Ser 2835, Cl NG 5.500%, 07/15/33 1,248 1,257 FICO STRIPS, Ser D-P (E) 5.280%, 09/26/19 6,474 3,753 FNMA 8.000%, 04/01/08 to 07/01/31 539 568 7.500%, 06/01/30 -- -- 7.000%, 03/01/09 to 10/01/37 8,134 8,473 6.500%, 05/01/17 to 10/01/37 66,722 68,648 6.190%, 08/01/08 1,275 1,275 6.000%, 04/01/17 to 09/01/37 184,381 187,498 5.740%, 03/01/09 1,027 1,034 5.500%, 04/01/14 to 08/01/37 200,624 201,868 5.000%, 06/01/18 to 07/01/37 127,839 126,224 4.500%, 06/01/13 to 10/01/20 50,106 49,514 4.495%, 04/01/09 1,369 1,364 4.000%, 07/01/18 to 03/01/36 62,083 58,629 FNMA ARM 7.022%, 11/01/35 2,316 2,375 6.919%, 12/01/07 2,267 2,325 6.909%, 12/01/07 2,291 2,350 6.908%, 12/01/07 2,226 2,283 6.902%, 12/01/07 2,339 2,399 6.444%, 07/01/36 4,603 4,685 6.178%, 08/01/37 32,980 33,620 6.062%, 08/01/37 13,267 13,478 5.952%, 01/01/37 4,853 4,914 5.900%, 09/01/37 4,813 4,881 5.842%, 06/01/37 3,640 3,702 5.841%, 03/01/37 19,544 19,753 5.820%, 04/01/37 5,110 5,212 5.818%, 05/01/37 2,420 2,458 5.766%, 08/01/37 3,414 3,462 5.746%, 04/01/36 2,328 2,357 5.640%, 02/01/36 13,085 13,125 5.614%, 05/01/37 2,748 2,770 5.193%, 11/01/36 1,310 1,303 5.082%, 10/01/36 4,177 4,175 FNMA CMO, Ser 109, Cl VB 5.000%, 11/01/37 6,453 6,068 FNMA CMO, Ser 1999-11, Cl Z 5.500%, 03/25/29 4,192 4,205 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA CMO, Ser 2001-60, Cl JZ 6.000%, 03/25/31 $ 111 $ 111 FNMA CMO, Ser 2002-94, Cl BJ, IO 5.500%, 04/25/16 302 9 FNMA CMO, Ser 2002-T11, Cl A 4.768%, 04/25/12 2,166 2,171 FNMA CMO, Ser 2003, HJ 5.000%, 02/25/18 2,250 2,246 FNMA CMO, Ser 2003-108, Cl BE 4.000%, 11/25/18 230 218 FNMA CMO, Ser 2003-113, Cl PN 3.500%, 02/25/13 671 665 FNMA CMO, Ser 2003-123, Cl AB 4.000%, 10/25/16 4,140 4,060 FNMA CMO, Ser 2003-15, Cl CH 4.000%, 12/01/07 1,461 1,436 FNMA CMO, Ser 2003-16, Cl PN 4.500%, 12/01/07 2,087 2,073 FNMA CMO, Ser 2003-24, Cl LC 5.000%, 12/25/15 1,113 1,112 FNMA CMO, Ser 2003-30, Cl ET 3.500%, 08/25/16 2,945 2,886 FNMA CMO, Ser 2003-33, Cl CH 4.000%, 12/01/07 3,800 3,710 FNMA CMO, Ser 2003-92, Cl PC 4.500%, 05/25/15 2,300 2,286 FNMA CMO, Ser 2003-T1, Cl A 3.807%, 11/25/12 969 964 FNMA CMO, Ser 2004-34, Cl PL 3.500%, 05/25/14 2,688 2,660 FNMA CMO, Ser 2004-4, Cl CA 4.000%, 09/25/17 2,510 2,446 FNMA CMO, Ser 2004-6, Cl CA 4.000%, 06/25/17 2,278 2,223 FNMA CMO, Ser 2004-81, Cl AG 4.000%, 03/25/18 3,267 3,185 FNMA CMO, Ser 2004-88, Cl HA 6.500%, 07/25/34 1,939 2,003 FNMA CMO, Ser 2005-20, Cl QD 5.000%, 03/25/28 5,907 5,910 FNMA CMO, Ser 2005-30, Cl B 5.000%, 07/25/32 1,886 1,810 FNMA CMO, Ser 2005-38, Cl CD 5.000%, 06/25/19 2,376 2,368 FNMA CMO, Ser 2005-57, Cl EG (F) 5.172%, 12/25/07 3,294 3,269 FNMA CMO, Ser 2005-58, Cl MA 5.500%, 07/25/35 1,221 1,241 FNMA CMO, Ser 2005-92, Cl NM 3.500%, 04/25/13 698 692 FNMA CMO, Ser 2005-C2, Cl A2 4.821%, 04/15/30 188 189 FNMA CMO, Ser 2006-114, Cl CG 5.500%, 12/25/36 2,791 2,769 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 123 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA CMO, Ser 2006-18, Cl PA 5.500%, 01/25/26 $ 2,714 $ 2,726 FNMA CMO, Ser 2006-31, Cl PA 5.500%, 11/25/26 3,229 3,247 FNMA CMO, Ser 2006-34, Cl PA 6.000%, 05/25/27 6,883 6,963 FNMA CMO, Ser 2006-41, Cl MA 5.500%, 04/25/24 2,705 2,713 FNMA CMO, Ser 2006-53, Cl PA 5.500%, 12/25/26 932 938 FNMA CMO, Ser 2006-55, Cl PA 6.000%, 05/25/26 4,627 4,683 FNMA CMO, Ser 2006-64, Cl PA 5.500%, 12/01/07 2,234 2,253 FNMA CMO, Ser 2006-80, Cl PB 6.000%, 12/01/07 6,349 6,439 FNMA CMO, Ser 2007-113, Cl DB 4.500%, 12/25/22 3,664 3,382 FNMA CMO, Ser 2007-27, Cl KA 5.750%, 09/25/33 1,704 1,728 FNMA CMO, Ser 2007-30, Cl MA 4.250%, 02/25/37 7,223 7,105 FNMA CMO, Ser 2007-39, Cl NA 4.250%, 01/25/37 8,378 8,231 FNMA CMO, Ser 2007-6, Cl PA 5.500%, 02/25/37 2,221 2,218 FNMA CMO, Ser 2007-62, Cl PA 6.000%, 03/25/29 2,367 2,407 FNMA CMO, Ser 2007-7, Cl W 5.500%, 01/25/36 2,039 2,019 FNMA CMO, Ser 2007-80, Cl TA 6.000%, 09/25/26 6,132 6,227 FNMA CMO, Ser 2007-81, Cl AE 6.000%, 08/25/28 7,837 7,969 FNMA CMO, Ser 2632, Cl NE 4.000%, 06/15/13 6,452 6,308 FNMA CMO, Ser 2727, Cl PW 3.570%, 06/15/29 219 216 FNMA CMO, Ser 3173, Cl PH 6.000%, 09/15/27 4,476 4,547 FNMA CMO, Ser 34, Cl QJ 4.500%, 01/25/16 4,424 4,395 FNMA CMO, Ser 45, Cl BA 4.500%, 11/25/14 101 100 FNMA CMO, Ser 45, Cl NW 5.500%, 01/25/35 8,478 8,351 FNMA CMO, Ser 48, Cl TD 5.500%, 12/25/34 4,188 4,116 FNMA CMO, Ser 60, Cl PA 5.500%, 04/25/34 1,974 1,990 FNMA CMO, Ser 81, Cl PA 6.000%, 02/25/29 1,376 1,400 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA TBA 7.000%, 12/01/35 $ 4,554 $ 4,726 6.500%, 12/13/37 49,250 50,651 6.000%, 12/01/18 to 12/01/37 172,719 176,217 5.500%, 12/01/27 to 01/01/37 110,302 110,874 5.000%, 01/01/19 to 12/01/37 432,098 424,067 4.500%, 12/01/35 3,600 3,422 GNMA 9.500%, 12/15/20 17 19 7.000%, 04/15/26 to 09/15/34 6,003 6,359 6.500%, 06/15/11 to 07/15/35 20,858 21,691 6.000%, 03/15/14 to 02/15/35 58,640 60,227 5.500%, 04/15/14 to 12/15/32 382 387 5.000%, 05/15/33 to 11/15/35 43,462 43,210 4.500%, 01/01/20 5,685 5,604 GNMA ARM 4.750%, 12/01/07 4,683 4,676 GNMA CMO, Ser 2001-18, Cl WH (F) 10.546%, 12/20/07 231 265 GNMA CMO, Ser 2002-51, Cl SG (F) 10.844%, 12/20/07 216 250 GNMA CMO, Ser 2003-58, Cl LG, IO 5.500%, 05/17/29 3,000 82 GNMA CMO, Ser 2003-82, Cl IO, IO 5.500%, 03/20/29 2,574 80 GNMA CMO, Ser 2003-86, Cl ZK 5.000%, 10/20/33 10,666 10,113 GNMA CMO, Ser 2004-80, Cl IP, IO 5.500%, 07/20/34 5,368 283 GNMA CMO, Ser 2004-87, Cl LI, IO 5.000%, 12/20/28 4,978 225 GNMA CMO, Ser 2006-3, Cl A 4.212%, 01/16/28 922 912 GNMA CMO, Ser 2006-37, Cl JG 5.000%, 07/20/36 1,723 1,642 GNMA CMO, Ser 2006-8, Cl A 3.942%, 08/16/25 1,288 1,270 GNMA CMO, Ser 2007-7, Cl PG 5.000%, 02/16/37 13,507 12,816 GNMA TBA 6.500%, 01/22/33 to 12/01/35 68,961 71,189 6.000%, 12/01/33 to 12/01/37 21,600 22,153 -------------- 2,843,948 -------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 19.7% Adjustable Rate Mortgage Trust, Ser 2005-8, Cl 4A11 (F) 5.436%, 12/01/07 12,450 12,447 American Home Mortgage Assets, Ser 2006-5, Cl A1 (F) 5.853%, 12/01/07 1,967 1,908 American Tower Trust, Ser 2007-1A, Cl AFX (C) 5.420%, 04/15/37 3,409 3,331 - -------------------------------------------------------------------------------- 124 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Amortizing Residential Collateral Trust CMO, Ser 2002-BC1, Cl A (F) 5.660%, 12/25/07 $ 602 $ 586 Banc of America Alternative Loan Trust, Ser 2004-5, Cl 4A1 5.000%, 06/25/19 1,591 1,573 Banc of America Alternative Loan Trust, Ser 2004-6, Cl 4A1 5.000%, 07/25/19 2,005 1,945 Banc of America Alternative Loan Trust, Ser 2006-4, Cl 4CB1 6.500%, 05/25/46 -- -- Banc of America Alternative Loan Trust, Ser 2006-7, Cl A3 (F) 5.913%, 10/25/36 2,029 2,009 Banc of America Alternative Loan Trust, Ser 2006-8, Cl 3A1 (F) 6.280%, 12/01/07 2,436 2,526 Banc of America Alternative Loan Trust, Ser 2007-1, Cl 2A1 (F) 6.497%, 12/01/07 567 566 Banc of America Commercial Mortgage Securities, Ser 2002-PB2, Cl A4 6.186%, 06/11/35 80 83 Banc of America Commercial Mortgage Securities, Ser 2002-PB2, Cl B 6.309%, 06/11/35 1,075 1,124 Banc of America Commercial Mortgage Securities, Ser 2003-1, Cl A1 3.878%, 09/11/36 7,274 7,127 Banc of America Commercial Mortgage Securities, Ser 2003-1, Cl A2 4.648%, 12/01/07 2,349 2,287 Banc of America Commercial Mortgage Securities, Ser 2004-1, Cl A3 4.429%, 11/10/39 30 29 Banc of America Commercial Mortgage Securities, Ser 2004-1, Cl A4 4.760%, 11/10/39 3,263 3,158 Banc of America Commercial Mortgage Securities, Ser 2004-2, Cl A5 4.580%, 12/01/07 564 540 Banc of America Commercial Mortgage Securities, Ser 2004-4, Cl A4 4.502%, 07/10/42 3,518 3,459 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Banc of America Commercial Mortgage Securities, Ser 2004-6, Cl A3 4.512%, 12/10/42 $ 5,620 $ 5,523 Banc of America Commercial Mortgage Securities, Ser 2005-2, Cl A3 4.611%, 07/10/43 172 171 Banc of America Commercial Mortgage Securities, Ser 2005-3, Cl A4 4.668%, 07/10/43 12,400 11,849 Banc of America Commercial Mortgage Securities, Ser 2005-4, Cl A5A 4.933%, 12/01/07 578 561 Banc of America Commercial Mortgage Securities, Ser 2005-5, Cl A4 (F) 5.115%, 10/10/45 9,126 8,975 Banc of America Commercial Mortgage Securities, Ser 2005-6, Cl A4 (F) 5.353%, 12/01/07 4,280 4,249 Banc of America Commercial Mortgage Securities, Ser 2006-4, Cl A4 5.634%, 07/10/46 15,000 15,198 Banc of America Commercial Mortgage Securities, Ser 2006-5, Cl XC, IO (C) (F) 0.053%, 12/01/07 78,460 1,164 Banc of America Funding, Ser 2005-B, Cl 2A1 (F) 5.097%, 12/01/07 5,697 5,706 Banc of America Funding, Ser 2006-D, Cl 5A1 (F) 5.844%, 12/01/07 1,465 1,447 Banc of America Funding, Ser 2007-8, Cl 2A2 7.000%, 10/25/37 227 228 Banc of America Funding, Ser 2007-D, Cl 3A1 (F) 5.652%, 12/01/07 4,018 4,035 Banc of America Mortgage Securities, Ser 2003-1, Cl 2A4 5.000%, 02/25/18 3,893 3,867 Bear Stearns Adjustable Rate Mortgage Trust, Ser 2004-2, Cl 24A (F) 5.322%, 12/01/07 5,052 4,917 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 125 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Bear Stearns Asset-Backed Securities, Ser 2006-AC1, Cl 1A1 (G) 5.750%, 12/01/07 $ 3,044 $ 3,035 Bear Stearns Commercial Mortgage Securities, Ser 2000-WF1, Cl A2 (F) 7.780%, 02/15/32 7,969 8,345 Bear Stearns Commercial Mortgage Securities, Ser 2004-ESA, Cl C (C) 4.937%, 05/14/16 2,473 2,505 Bear Stearns Commercial Mortgage Securities, Ser 2004-PWR5, Cl A3 4.565%, 07/11/42 115 113 Bear Stearns Commercial Mortgage Securities, Ser 2004-PWR6, Cl A6 4.825%, 11/11/41 637 617 Bear Stearns Commercial Mortgage Securities, Ser 2004-T16, Cl A3 4.030%, 02/13/46 100 99 Bear Stearns Commercial Mortgage Securities, Ser 2005-T18, Cl A4 (F) 4.933%, 12/01/07 2,463 2,385 Bear Stearns Commercial Mortgage Securities, Ser 2007-PW15, Cl A3 5.660%, 09/11/41 1,189 1,097 5.309%, 02/11/44 2,636 2,624 Bear Stearns Commercial Mortgage Securities, Ser 2007-PW17, Cl A4 (F) 5.694%, 12/01/07 21,410 21,655 Bear Stearns Structured Products, Ser 2007-R11, Cl A1A (F) 5.419%, 12/25/07 24,758 24,386 Chase Funding Mortgage Loan, Ser 2002-1, Cl 2A2 (F) 5.289%, 12/25/07 1,290 1,269 Chase Mortgage Finance, Ser 2005-A1, Cl 1A1 (F) 5.409%, 12/01/07 2,546 2,544 Chase Mortgage Finance, Ser 2005-A1, Cl 2A3 (F) 5.238%, 12/01/07 13,166 13,149 Chaseflex Trust, Ser 2007-1, Cl 1A3 6.500%, 02/25/37 1,920 1,958 Citicorp Residential Mortgage Securities, Ser 2006-1, Cl A2 (G) 5.682%, 07/25/36 2,150 2,123 Citicorp Residential Mortgage Securities, Ser 2006-2, Cl A2 (G) 5.557%, 12/01/07 2,268 2,233 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Citigroup Commercial Mortgage Trust, Ser 2004-CA, Cl C (F) 5.356%, 12/01/07 $ 1,520 $ 1,482 Citigroup Mortgage Loan Trust, Ser 2005-11, Cl A3 (F) 4.900%, 12/01/07 8,016 7,735 Citigroup Mortgage Loan Trust, Ser 2006-AR3, Cl 1A1A (F) 5.940%, 12/01/07 556 550 Citigroup Mortgage Loan Trust, Ser 2007-AHL1, Cl A2A (F) 4.913%, 12/25/07 2,843 2,757 Citigroup Mortgage Loan Trust, Ser 2007-AR5, Cl 1A2A (F) 5.614%, 12/01/07 492 496 Commercial Mortgage Asset Trust, Ser 1999-C2, Cl A2 (F) 7.546%, 11/17/32 324 333 Commercial Mortgage Pass-Through Certificate, Ser 1999-1, Cl E (F) 7.090%, 12/01/07 4,604 4,666 Commercial Mortgage Pass-Through Certificate, Ser 2000-C1, Cl C (F) 7.706%, 08/15/33 637 677 Commercial Mortgage Pass-Through Certificate, Ser 2004-LB2A, Ser A4 4.715%, 03/10/39 1,173 1,131 Commercial Mortgage Pass-Through Certificate, Ser 2004-LB3A, Cl B (F) 5.443%, 12/01/07 2,400 2,331 Commercial Mortgage Pass-Through Certificate, Ser 2005-C6, Cl A3 5.144%, 12/10/07 12,600 12,602 Commercial Mortgage Pass-Through Certificate, Ser 2005-LP5, Cl A4 (F) 4.982%, 12/01/07 9,042 8,810 Commercial Mortgage Pass-Through Certificate, Ser 2006-C7, Cl AM (F) 5.793%, 12/01/07 11,330 11,290 Countrywide Alternative Loan Trust, Ser 2003-20CB, Cl 1A1 5.500%, 10/25/33 3,568 3,552 Countrywide Alternative Loan Trust, Ser 2004-27CB, Cl A1 6.000%, 12/25/34 3,057 2,991 Countrywide Alternative Loan Trust, Ser 2004-J1, Cl 1A1 6.000%, 02/25/34 773 769 - -------------------------------------------------------------------------------- 126 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Alternative Loan Trust, Ser 2004-J6, Cl 2A1 6.500%, 11/25/31 $ 2,618 $ 2,637 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 2A1 (F) 6.333%, 12/01/07 4,963 4,769 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 3A2 (F) 6.033%, 12/01/07 1,530 1,416 Countrywide Alternative Loan Trust, Ser 2005-56, Cl 4A1 (F) 5.099%, 12/25/07 9,531 9,197 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 1A1 (F) 5.070%, 12/20/07 11,281 10,925 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 2X, IO (E) 1.312%, 12/01/07 26,973 964 Countrywide Alternative Loan Trust, Ser 2005-72, Cl A1 (F) 5.059%, 12/27/07 4,104 4,023 Countrywide Alternative Loan Trust, Ser 2006-7CB, Cl 1A9 6.000%, 05/25/36 534 530 Countrywide Alternative Loan Trust, Ser 2006-OA11, Cl A4 (F) 4.979%, 12/25/07 12,238 11,835 Countrywide Alternative Loan Trust, Ser 2006-OA14, Cl 1A2 (F) 5.813%, 12/01/07 1,262 1,192 Countrywide Alternative Loan Trust, Ser 2006-OA2, Cl X1P, IO 1.772%, 12/01/07 37,747 1,749 Countrywide Alternative Loan Trust, Ser 2006-OC6, Cl 2A1 (F) 4.943%, 12/25/07 4,029 4,019 Countrywide Home Loans, Ser 2005-20, Cl A7 5.250%, 12/01/07 870 814 Countrywide Home Loans, Ser 2005-R3, Cl AF (C) (F) 5.189%, 12/25/07 10,476 10,157 Credit Suisse First Boston Mortgage Securities, Ser 1998-C2, Cl A2 6.300%, 11/15/30 3,246 3,262 Credit Suisse First Boston Mortgage Securities, Ser 2001-CF2, Cl A4 6.505%, 02/15/34 2,220 2,307 Credit Suisse First Boston Mortgage Securities, Ser 2001-CKN5, Cl A4 5.435%, 09/15/34 3,653 3,704 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Credit Suisse First Boston Mortgage Securities, Ser 2001-MH29, Cl A (G) 5.600%, 09/25/31 $ 831 $ 838 Credit Suisse First Boston Mortgage Securities, Ser 2002-CKN2, Cl A3 6.133%, 04/15/37 2,899 3,012 Credit Suisse First Boston Mortgage Securities, Ser 2002-CKS4, Cl A2 5.183%, 11/15/36 23,396 23,380 Credit Suisse First Boston Mortgage Securities, Ser 2003-C4, Cl A4 (F) 5.137%, 08/15/36 1,905 1,892 Credit Suisse First Boston Mortgage Securities, Ser 2003-C5, Cl A4 (F) 4.900%, 12/15/36 4,265 4,165 Credit Suisse First Boston Mortgage Securities, Ser 2003-CK2, Cl A4 4.801%, 03/15/36 1,334 1,308 Credit Suisse First Boston Mortgage Securities, Ser 2004-C2, Cl A1 3.819%, 05/15/36 10,678 10,377 Credit Suisse First Boston Mortgage Securities, Ser 2004-C2, Cl A2 5.416%, 12/01/07 5,482 5,475 Credit Suisse First Boston Mortgage Securities, Ser 2004-C3, Cl A5 (F) 5.113%, 07/15/36 2,413 2,368 Credit Suisse First Boston Mortgage Securities, Ser 2004-C5, Cl A4 4.829%, 12/15/07 3,302 3,192 Credit Suisse First Boston Mortgage Securities, Ser 2005-C1, Cl AAB 4.815%, 12/01/07 1,154 1,147 Credit Suisse First Boston Mortgage Securities, Ser 2005-C2, Cl A4 4.832%, 04/15/37 1,169 1,128 Credit Suisse First Boston Mortgage Securities, Ser 2007-C5, Cl A4 (F) 5.695%, 12/01/07 1,742 1,744 Credit Suisse First Boston Mortgage Securities, Ser 8, Cl 1A2 5.250%, 12/01/07 4,779 4,754 Criimi Mae Commercial Mortgage, Ser 1998-C1, Cl A2 (C) 7.000%, 06/02/33 418 417 DLJ Commercial Mortgage, Ser 1999-CG2, Cl A1B (F) 7.300%, 06/10/32 3,443 3,535 DSLA Mortgage Loan Trust, Ser 2004-AR2, Cl A2B (F) 5.421%, 12/19/07 3,857 3,780 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 127 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- EMC Mortgage Loan Trust, Ser 2002-AA, Cl A1 (C) (F) 5.259%, 12/25/07 $ 1,230 $ 1,214 First Union National Bank, Ser 2001-C4, Cl B 6.417%, 12/12/33 926 971 GE Capital Commercial Mortgage, Ser 2001-2, Cl A3 6.030%, 08/11/33 1,404 1,422 GE Capital Commercial Mortgage, Ser 2001-3, Cl A1 5.560%, 06/10/38 106 107 GE Capital Commercial Mortgage, Ser 2002-3A, Cl A2 4.996%, 12/10/37 12,500 12,454 GE Capital Commercial Mortgage, Ser 2003-C1, Cl A3 4.371%, 01/10/38 25 25 GE Capital Commercial Mortgage, Ser 2004-C1, Cl A3 4.596%, 11/10/38 3,296 3,170 GE Capital Commercial Mortgage, Ser 2004-C3, Cl A4 (F) 5.189%, 12/01/07 2,979 2,938 GE Capital Commercial Mortgage, Ser 2005-C3, Cl A7A (F) 4.974%, 12/01/07 5,530 5,384 GE Capital Commercial Mortgage, Ser 2005-C4, Cl A3A (F) 5.333%, 12/01/07 14,500 14,649 GE Capital Commercial Mortgage, Ser 2007-C1, Cl A4 5.543%, 12/01/07 5,060 5,069 GMAC Commercial Mortgage Securities, Ser 2000-C2, Cl A2 (F) 7.455%, 08/16/33 3,171 3,333 GMAC Commercial Mortgage Securities, Ser 2004-C1, Cl A1 3.118%, 03/10/38 454 448 GMAC Commercial Mortgage Securities, Ser 2004-C2, Cl A1 3.896%, 08/10/38 202 200 GMAC Mortgage Loan Trust, Ser 2004-J4, Cl A1 5.500%, 12/01/07 966 966 GMAC Mortgage Loan Trust, Ser 2005-HE3, Cl A1VN (F) 5.391%, 12/25/07 12,848 12,338 GMAC Mortgage Loan Trust, Ser 2007-HE2, Cl A6 (G) 6.249%, 12/01/07 964 964 GS Mortgage Securities, Ser 1998-C1, Cl B 6.970%, 10/18/30 878 885 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- GS Mortgage Securities, Ser 1998-GLII, Cl A2 6.562%, 04/13/31 $ 6,652 $ 6,649 GS Mortgage Securities, Ser 2004-GG2, Cl A6 (F) 5.396%, 08/10/38 2,171 2,165 GS Mortgage Securities, Ser 2005-GG4, Cl AABA 4.680%, 07/10/39 5,800 5,687 GSMPS Mortgage Loan Trust, Ser 1998-1, Cl A (C) 8.000%, 09/19/27 7 7 GSMPS Mortgage Loan Trust, Ser 2006-RP2, Cl 1AF1 (C) (F) 5.273%, 12/25/07 2,887 2,857 Greenpoint Mortgage Funding Trust, Ser 2007-AR1, Cl 1A1A (F) 4.869%, 12/25/07 20,542 20,095 Greenwich Capital Commercial Funding, Ser 2005-GG5, Cl A2 5.117%, 04/10/37 1,517 1,527 Greenwich Capital Commercial Funding, Ser 2007-GC9, Cl X, IO (C) (F) 0.512%, 12/01/07 22,808 495 Harborview Mortgage Loan Trust, Ser 2005-01, Cl X, IO (E) 1.446%, 12/01/07 16,634 296 Harborview Mortgage Loan Trust, Ser 2005-10, Cl X, IO (F) 1.548%, 12/01/07 26,377 598 Harborview Mortgage Loan Trust, Ser 2005-12, Cl X2B, IO (F) 1.339%, 12/01/07 25,606 464 Heller Financial Commercial Mortgage, Ser 1999-PH1, Cl C (F) 6.853%, 12/15/07 239 244 Indymac INDA Mortgage Loan Trust, Ser 2007-AR7, Cl 1A1 6.867%, 11/01/37 3,305 3,376 Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl AX2, IO (E) 0.676%, 12/01/07 9,307 176 JPMorgan Chase Commercial Mortgage, Ser 2001-C1, Cl A3 5.857%, 10/12/35 991 1,019 JPMorgan Chase Commercial Mortgage, Ser 2002-C2, Cl A2 5.050%, 12/12/34 7,206 7,162 JPMorgan Chase Commercial Mortgage, Ser 2002-CIB5, Cl A2 5.161%, 10/12/37 1,137 1,137 - -------------------------------------------------------------------------------- 128 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- JPMorgan Chase Commercial Mortgage, Ser 2003-CB7, Cl A4 (F) 4.879%, 12/12/07 $ 2,383 $ 2,327 JPMorgan Chase Commercial Mortgage, Ser 2003-PM1A, Cl A4 (F) 5.326%, 08/12/40 1,911 1,916 JPMorgan Chase Commercial Mortgage, Ser 2004-C3, Cl A1 4.200%, 07/12/35 63 62 JPMorgan Chase Commercial Mortgage, Ser 2004-C3, Cl A2 4.223%, 01/15/42 12,948 12,781 JPMorgan Chase Commercial Mortgage, Ser 2004-C3, Cl A4 4.657%, 01/15/42 4,000 3,920 JPMorgan Chase Commercial Mortgage, Ser 2004-C3, Ser A5 4.878%, 01/15/42 3,640 3,523 JPMorgan Chase Commercial Mortgage, Ser 2005-CB11, Cl ASB (F) 5.201%, 08/12/37 1,711 1,723 JPMorgan Chase Commercial Mortgage, Ser 2005-CB12, Cl A4 4.895%, 09/12/37 530 513 JPMorgan Chase Commercial Mortgage, Ser 2005-CB13, Cl AM (F) 5.513%, 12/01/07 1,143 1,108 JPMorgan Chase Commercial Mortgage, Ser 2005-LDP2, Cl A1 4.334%, 07/15/42 1,079 1,069 JPMorgan Chase Commercial Mortgage, Ser 2005-LDP2, Cl A4 4.738%, 07/15/42 1,128 1,081 JPMorgan Chase Commercial Mortgage, Ser 2005-LDP3, Cl A1 4.655%, 08/15/42 708 705 JPMorgan Chase Commercial Mortgage, Ser 2005-LDP3, Cl ASB (F) 4.893%, 08/15/42 2,276 2,258 JPMorgan Chase Commercial Mortgage, Ser 2005-LDP4, Cl A4 (F) 4.918%, 12/01/07 6,200 6,011 JPMorgan Chase Commercial Mortgage, Ser 2006-CB16, Cl AM 5.593%, 05/12/45 11,570 11,240 JPMorgan Chase Commercial Mortgage, Ser 2006-CB16, Cl ASB 5.523%, 05/12/45 2,398 2,432 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- JPMorgan Chase Commercial Mortgage, Ser 2006-CB17, Cl ASB 5.415%, 12/01/07 $ 4,493 $ 4,530 JPMorgan Chase Commercial Mortgage, Ser 2006-LDP7, Cl A1 (F) 5.833%, 12/01/07 64 65 JPMorgan Chase Commercial Mortgage, Ser 2006-LDP7, Cl A2 (F) 5.861%, 12/01/07 315 324 JPMorgan Mortgage Acquisition, Ser 2007-CH1, Cl AF6 (G) 5.501%, 12/01/07 9,605 8,748 JPMorgan Mortgage Trust, Ser 2004-A5, Cl 4A2 (F) 4.835%, 12/25/34 6,071 6,004 JPMorgan Mortgage Trust, Ser 2004-A5, Cl 4A4 (F) 4.829%, 12/01/07 11,500 11,253 JPMorgan Mortgage Trust, Ser 2005-A3, Cl 11A2 (F) 4.492%, 12/25/07 13,065 11,984 JPMorgan Mortgage Trust, Ser 2005-A8, Cl 1A1 (F) 5.406%, 12/01/07 6,155 6,014 JPMorgan Mortgage Trust, Ser 2006-A2, Cl 2A2 (F) 5.754%, 12/01/07 13,400 13,143 JPMorgan Mortgage Trust, Ser 2006-A3, Cl 3A4 (F) 5.741%, 12/01/07 14,500 14,176 LB Commercial Conduit Mortgage Trust, Ser 1999-C2, Cl B 7.425%, 10/15/32 371 387 LB-UBS Commercial Mortgage Trust, Ser 2002-C2, Cl A4 5.594%, 06/15/31 21,324 21,835 LB-UBS Commercial Mortgage Trust, Ser 2003-C5, Cl A2 3.478%, 07/15/27 1,990 1,965 LB-UBS Commercial Mortgage Trust, Ser 2003-C8, Cl A4 (F) 5.124%, 11/15/32 16,549 16,362 LB-UBS Commercial Mortgage Trust, Ser 2004-C4, Cl A2 (F) 4.567%, 12/11/07 510 507 LB-UBS Commercial Mortgage Trust, Ser 2004-C8, Cl A4 4.510%, 12/11/07 360 354 LB-UBS Commercial Mortgage Trust, Ser 2005-C1, Cl C (F) 4.836%, 12/11/07 334 308 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 129 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- LB-UBS Commercial Mortgage Trust, Ser 2005-C2, Cl A4 4.998%, 04/15/30 $ 123 $ 123 LB-UBS Commercial Mortgage Trust, Ser 2005-C2, Cl A5 (F) 5.150%, 04/15/30 7,909 7,790 LB-UBS Commercial Mortgage Trust, Ser 2005-C5, Cl A2 4.885%, 09/15/30 180 180 LB-UBS Commercial Mortgage Trust, Ser 2005-C7, Cl A2 5.103%, 11/15/30 995 1,002 LB-UBS Commercial Mortgage Trust, Ser 2005-C7, Cl AM (F) 5.263%, 12/11/07 1,394 1,335 LB-UBS Commercial Mortgage Trust, Ser 2006-C7, Cl A2 5.300%, 11/15/38 2,425 2,449 LB-UBS Commercial Mortgage Trust, Ser 2006-C7, Cl E (F) 5.516%, 12/11/07 494 432 LB-UBS Commercial Mortgage Trust, Ser 2007-C1. Cl AAB 5.403%, 02/15/40 1,357 1,365 LB-UBS Commercial Mortgage Trust, Ser 2007-C3, Cl A2 6.365%, 12/15/28 1,931 2,019 Long Beach Mortgage Loan Trust, Ser 2006-4, Cl 2A1 (F) 4.839%, 12/25/07 3,580 3,555 MLCC Mortgage Investors, Ser 2004-B, Cl A3 (F) 6.981%, 12/01/07 947 945 Master Adjustable Rate Mortgage Trust, Ser 2004-13, Cl 3A7A (F) 3.787%, 12/01/07 11,650 11,514 Master Adjustable Rate Mortgage Trust, Ser 2007-3, Cl 12A1 (F) 4.989%, 12/01/07 21,974 21,318 Master Reperforming Loan Trust, Ser 2005-1, Cl 1A1 (C) 6.000%, 08/25/34 4,752 4,786 Master Reperforming Loan Trust, Ser 2006-1, Cl 1A1F (F) 5.233%, 12/25/07 2,091 2,060 Merrill Lynch Mortgage Investors Trust, Ser 2004-A1, Cl 4A (F) 5.338%, 12/01/07 7,635 7,540 Merrill Lynch Mortgage Investors Trust, Ser 2006-WMC2, Cl A2B (G) 5.609%, 12/01/07 699 693 Merrill Lynch Mortgage Investors Trust, Ser 2006-WMC2, Cl A2D (G) 5.895%, 12/25/07 5,789 5,569 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Merrill Lynch Mortgage Trust, Ser 2004-BPC1, Cl A5 (F) 4.855%, 10/12/41 $ 4,751 $ 4,606 Merrill Lynch Mortgage Trust, Ser 2004-BPC1, Cl XC, IO (F) 0.157%, 12/01/07 21,935 414 Merrill Lynch Mortgage Trust, Ser 2004-MKB1, Cl A3 4.892%, 02/12/42 151 150 Merrill Lynch Mortgage Trust, Ser 2004-MKB1, Cl B (F) 5.280%, 02/12/42 916 904 Merrill Lynch Mortgage Trust, Ser 2005-CIP1, Cl AM (F) 5.107%, 12/01/07 1,116 1,062 Merrill Lynch Mortgage Trust, Ser 2005-LC1, Cl A4 (F) 5.291%, 12/01/07 4,748 4,717 Merrill Lynch Mortgage Trust, Ser 2005-MKB2, Cl A4 5.204%, 09/12/42 2,017 1,989 Merrill Lynch/Countrywide Commercial Mortgage Trust, Ser 2006-4, Cl ASB (F) 5.133%, 12/12/49 6,366 6,323 Merrill Lynch/Countrywide Commercial Mortgage Trust, Ser 2007-5, Cl B (F) 5.479%, 08/12/48 307 276 Merrill Lynch/Countrywide Commercial Mortgage Trust, Ser 2007-5, Cl C (F) 5.509%, 08/12/48 342 306 Merrill Lynch/Countrywide Commercial Mortgage Trust, Ser 2007-5, Cl X, IO (F) 0.736%, 08/12/48 4,033 153 Merrill Lynch/Countrywide Commercial Mortgage Trust, Ser 2007-6, Cl A4 (F) 5.485%, 03/12/51 6,740 6,718 Morgan Stanley Capital I, Ser 2003-IQ5, Cl A4 5.010%, 12/01/07 3,770 3,731 Morgan Stanley Capital I, Ser 2004-HQ3, Cl A4 4.800%, 01/13/41 2,256 2,188 Morgan Stanley Capital I, Ser 2004-HQ3, Cl D 4.900%, 01/13/41 339 326 Morgan Stanley Capital I, Ser 2004-T13, Cl B (F) 4.760%, 09/13/45 1,145 1,105 - -------------------------------------------------------------------------------- 130 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Morgan Stanley Capital I, Ser 2005-HQ5, Cl A3 5.007%, 01/14/42 $ 110 $ 110 Morgan Stanley Capital I, Ser 2005-HQ5, Cl AAB 5.037%, 01/14/42 3,294 3,299 Morgan Stanley Capital I, Ser 2005-HQ6, Cl A4A 4.989%, 08/13/42 4,630 4,512 Morgan Stanley Capital I, Ser 2005-HQ7, Cl AAB (F) 5.351%, 12/01/07 6,171 6,223 Morgan Stanley Capital I, Ser 2006-WMC1, Cl A2A (F) 4.943%, 12/25/07 253 251 Morgan Stanley Capital I, Ser 2007-HE2, Cl A2A (F) 4.913%, 12/25/07 1,330 1,299 Morgan Stanley Dean Witter Capital, Ser 2000-LIFE, Cl A2 (F) 7.570%, 11/15/36 3,007 3,129 Morgan Stanley Dean Witter Capital, Ser 2001-TOP1, Cl A4 6.660%, 02/15/33 2,003 2,085 Morgan Stanley Dean Witter Capital, Ser 2001-TOP3, Cl A4 6.390%, 06/15/11 2,792 2,907 Morgan Stanley Dean Witter Capital, Ser 2002-IQ2, Cl A3 5.520%, 12/15/35 1,684 1,690 Morgan Stanley Dean Witter Capital, Ser 2003-HQ2, Cl A1 4.180%, 03/12/35 268 261 Morgan Stanley Mortgage Loan Trust, Ser 2007-3XS, Cl 2A3S (G) 5.858%, 12/01/07 31 29 Morgan Stanley Mortgage Loan Trust, Ser 2007-6XS, Cl 2A1S (F) 4.983%, 12/25/07 1,248 1,243 Nationslink Funding, Ser 1999-1, Cl 2 6.316%, 01/20/31 5,398 5,425 New York Mortgage Trust, Ser 2006-1, Cl 2A2 (F) 5.651%, 12/01/07 788 794 Nomura Asset Securities, Ser 1998-D6, Cl A1C 6.690%, 03/15/30 166 177 Oakwood Mortgage Investors, Ser 2002-C, Cl A, IO 6.000%, 08/15/10 6,381 763 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Option One Mortgage Loan Trust, Ser 2001-4, Cl A (F) 5.389%, 12/25/07 $ 366 $ 362 Ownit Mortgage Loan Asset-Backed Securities Trust, Ser 2006-1, Cl AF1 (G) 5.424%, 12/25/36 652 639 Prime Mortgage Trust, Ser 2006-CL1, Cl A1 (F) 5.373%, 12/25/07 106 105 Prime Mortgage Trust, Ser 2006-DR1, Cl 2A1 (C) 5.500%, 05/25/35 3,701 3,637 RAAC, Ser 2005-SP1, Cl 2A2 5.250%, 12/01/07 2,203 2,174 RAAC, Ser 2007-RP4, Cl A (C) (F) 5.139%, 12/25/07 22,382 20,986 Residential Accredit Loans, Ser QO8, Cl 1A1A (F) 4.879%, 12/25/07 16,039 15,913 Residential Asset Mortgage Products, Ser 2003-RS7, Cl AI6 5.340%, 12/01/07 1,305 1,291 Residential Asset Mortgage Products, Ser 2004-SL1, Cl A8 6.500%, 11/25/31 2,205 2,255 Residential Asset Mortgage Products, Ser 2004-SL3, Cl A2 6.500%, 12/25/31 3,645 3,721 Residential Asset Securitization Trust, Ser 2004-IP2, Cl 2A1 (F) 5.254%, 12/01/07 3,245 3,247 Residential Funding Mortgage Securities, Ser 2000-HI1, Cl AI7 (G) 8.290%, 02/25/25 1,944 1,937 Residential Funding Mortgage Securities, Ser 2005-HS1, Cl AI1 (F) 4.909%, 12/25/07 3,480 3,460 Residential Funding Mortgage Securities, Ser 2007-HSA3, Cl AI2 (F) 5.980%, 05/25/37 922 918 Salomon Brothers Mortgage Securities VII, Ser 2002-KEY2, Cl A2 4.467%, 03/18/36 2,576 2,544 Structured Adjustable Rate Mortgage Loan, Ser 2005-19XS, Cl 1A1 (F) 5.109%, 12/26/07 8,575 8,300 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 131 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Structured Asset Mortgage Investments, Ser 2007-AR4, Cl A4B 4.969%, 12/25/07 $ 22,980 $ 22,243 Terwin Mortgage Trust, Ser 2005-9HGS, Cl A1 (C) (F) 4.000%, 12/01/07 1,797 1,785 Terwin Mortgage Trust, Ser 2006-6, Cl 1A2 (F) 4.750%, 12/21/07 10,000 9,075 Terwin Mortgage Trust, Ser 2006-8, Cl 1A2 5.000%, 12/01/07 6,000 5,498 Thornburg Mortgage Securities Trust, Ser 2005-3, Cl 2A1 (F) 5.029%, 12/25/07 13,456 13,424 Thornburg Mortgage Securities Trust, Ser 2005-4, Cl A4 (F) 4.989%, 12/25/07 17,832 17,766 Thornburg Mortgage Securities Trust, Ser 2006-1, Cl A3 (F) 4.959%, 12/01/07 23,353 22,537 Thornburg Mortgage Securities Trust, Ser 2007-4, Cl 2A1 (F) 6.240%, 08/30/37 10,252 10,275 6.220%, 12/01/07 9,145 9,054 UBS Paine Webber Commercial Mortgage Trust, Ser 2004-C8, Cl A2 4.201%, 12/15/29 886 876 US Bank National Mortgage Association, Ser 2001-1, Cl A 5.920%, 05/25/12 9,188 9,687 Wachovia Bank Commercial Mortgage Trust, Ser 2002-C1A, Cl A4 6.287%, 04/15/34 2,587 2,705 Wachovia Bank Commercial Mortgage Trust, Ser 2002-C2, Cl A4 4.980%, 11/15/34 5,996 5,945 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C5, Cl A2 3.989%, 06/15/35 955 898 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C5, Cl B (F) 4.107%, 06/15/35 1,778 1,672 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C6, Cl A3 (F) 4.957%, 08/15/35 4,490 4,486 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wachovia Bank Commercial Mortgage Trust, Ser 2003-C7, Cl A2 (C) (F) 5.077%, 12/01/07 $ 3,361 $ 3,312 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C8, Cl A3 4.445%, 11/15/35 949 937 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C9, Cl A4 (F) 5.012%, 12/15/35 993 978 Wachovia Bank Commercial Mortgage Trust, Ser 2003-C9, Cl B (F) 5.109%, 12/01/07 593 584 Wachovia Bank Commercial Mortgage Trust, Ser 2004-C10, Cl A4 4.748%, 02/15/41 8,721 8,413 Wachovia Bank Commercial Mortgage Trust, Ser 2004-C11, Cl B (F) 5.306%, 12/01/07 3,640 3,524 Wachovia Bank Commercial Mortgage Trust, Ser 2004-C12, Cl A4 (F) 5.233%, 12/01/07 3,401 3,384 Wachovia Bank Commercial Mortgage Trust, Ser 2004-C15, Cl B 4.892%, 12/01/07 1,579 1,479 Wachovia Bank Commercial Mortgage Trust, Ser 2005-C19, Cl A6 4.699%, 05/15/44 1,994 1,905 Wachovia Bank Commercial Mortgage Trust, Ser 2005-C20, Cl A4 (F) 5.244%, 12/01/07 280 282 Wachovia Bank Commercial Mortgage Trust, Ser 2005-C20, Cl A7 (F) 5.118%, 12/01/07 4,631 4,549 Wachovia Bank Commercial Mortgage Trust, Ser 2005-C21, Cl A4 (F) 5.210%, 12/01/07 2,246 2,230 Wachovia Bank Commercial Mortgage Trust, Ser 2006-C26, Cl APB 5.997%, 06/15/45 3,853 4,000 - -------------------------------------------------------------------------------- 132 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Washington Mutual Mortgage Pass-Through Certificates, Ser 2002-AR18, Cl A (F) 4.137%, 12/01/07 $ 1,329 $ 1,328 Washington Mutual Mortgage Pass-Through Certificates, Ser 2003-MS1, Cl 1A 5.000%, 02/25/18 1,286 1,275 Washington Mutual Mortgage Pass-Through Certificates, Ser 2003-MS2, Cl 3A1 5.000%, 03/25/18 5,284 5,246 Washington Mutual Mortgage Pass-Through Certificates, Ser 2003-S13, Cl 22A1 5.000%, 12/01/07 977 970 Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR13, Cl A1A1 (F) 5.079%, 12/25/07 5,547 5,398 Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR15, Cl A1A2 (F) 5.069%, 12/25/07 8,498 8,296 Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR16, Cl 1A4A (F) 5.102%, 12/25/07 13,585 13,347 Washington Mutual Mortgage Pass-Through Certificates, Ser 2005-AR19, Cl A1A2 (F) 5.079%, 12/25/07 8,485 8,228 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-1, Cl 3A2 5.750%, 02/25/36 5,843 5,829 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR1, Cl 1A1B (F) 6.003%, 12/01/07 4,129 4,014 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR14, Cl 1A4 (F) 5.647%, 12/01/07 713 715 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR15, Cl 1A (F) 5.773%, 12/01/07 4,198 4,123 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR15, Cl 1A1B (F) 5.773%, 12/01/07 2,422 2,348 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR15, Cl 2A1B (F) 6.433%, 12/01/07 $ 2,565 $ 2,494 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR16, Cl 2A4 (F) 5.651%, 12/25/36 567 560 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR17, Cl 1A1B (F) 5.743%, 12/01/07 786 763 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR17, Cl 2A (F) 5.586%, 12/01/07 908 891 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR4, Cl DA (F) 5.903%, 12/01/07 1,744 1,702 Washington Mutual Mortgage Pass-Through Certificates, Ser 2006-AR7, Cl A1B (F) 5.853%, 12/01/07 1,325 1,259 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-0A5, Cl A1B (F) 5.773%, 12/01/07 19,382 18,694 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-0A6, Cl 1A1B (F) 5.743%, 12/01/07 813 786 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY1, Cl 1A1 (F) 5.718%, 12/01/07 9,069 9,120 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY1, Cl 4A1 (F) 5.478%, 12/01/07 9,875 9,716 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY3, Cl 1A1 (F) 5.672%, 12/01/07 10,559 10,586 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl 1A1 (F) 5.707%, 06/25/37 1,942 1,935 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl 2A1 (F) 5.703%, 12/01/07 4,131 4,086 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 133 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY6, Cl 3A2 (F) 5.821%, 12/21/07 $ 5,017 $ 4,919 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY7, Cl 2A1 (F) 5.889%, 12/01/07 2,737 2,727 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-HY7, Cl 3A1 (F) 5.917%, 12/01/07 2,002 1,990 Washington Mutual Mortgage Pass-Through Certificates, Ser 2007-OA5, Cl 1A (F) 5.683%, 12/01/07 23,017 22,531 Washington Mutual Mortgage Pass-Through Certificates, Ser 2009-AR18, Cl 2A3 (F) 5.495%, 12/01/07 1,751 1,732 Wells Fargo Alternative Loan Trust, Ser 2007-PA2, Cl 1A5 6.000%, 06/25/37 926 915 Wells Fargo Alternative Loan Trust, Ser 2007-PA5, Cl 1A2 6.250%, 11/25/37 474 463 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-0, Cl A1 (F) 4.893%, 12/01/07 1,207 1,182 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-H, Cl A1 (F) 4.527%, 12/01/07 5,954 5,852 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-S, Cl A7 (F) 3.541%, 12/01/07 780 769 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-l, Cl A5 (F) 4.795%, 07/25/34 881 866 Wells Fargo Mortgage-Backed Securities Trust, Ser 2004-l, Cl A6 (F) 4.795%, 07/25/34 895 869 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-14, Cl 2A1 5.500%, 12/01/07 1,267 1,250 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR10, Cl 2A17 (F) 3.497%, 12/01/07 2,085 2,069 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR14, Cl A1 (F) 5.386%, 12/01/07 $ 1,375 $ 1,346 Wells Fargo Mortgage-Backed Securities Trust, Ser 2005-AR16, Cl 7A1 (F) 5.000%, 12/01/07 3,872 3,849 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-2, Cl 3A1 5.750%, 03/25/36 16,118 15,869 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-7, Cl 3A1 6.000%, 12/01/07 782 789 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR18, Cl 1A1 (F) 5.947%, 12/01/07 1,756 1,775 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR19, Cl A1 (F) 5.650%, 12/01/07 3,662 3,594 Wells Fargo Mortgage-Backed Securities Trust, Ser 2006-AR6, Cl 7A1 5.114%, 12/01/07 2,856 2,777 Zuni Mortgage Loan Trust, Ser 2006-OA1, Cl A1 (F) 4.919%, 12/25/07 8,611 8,491 -------------- 1,301,193 -------------- Total Mortgage-Backed Securities (Cost $4,123,522) ($ Thousands) 4,145,141 -------------- ASSET-BACKED SECURITIES -- 3.2% AUTOMOTIVE -- 0.7% AmeriCredit Automobile Receivables Trust, Ser 2004-1, Cl C 4.220%, 07/06/09 18 18 AmeriCredit Prime Automobile Receivables Trust, Ser 2007-1, Cl A3 5.270%, 11/08/11 3,692 3,721 Capital Auto Receivables Asset Trust, Ser 2006-1, Cl A3 5.030%, 10/15/09 2,752 2,752 Capital Auto Receivables Asset Trust, Ser 2007-1, Cl A3A 5.000%, 04/15/11 2,046 2,056 - -------------------------------------------------------------------------------- 134 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- DaimlerChrysler Auto Trust, Ser 2006-D, Cl A4 4.940%, 02/08/12 $ 2,283 $ 2,294 DaimlerChrysler Auto Trust, Ser 2007-A, Cl A4 5.280%, 03/08/13 7,841 7,839 Ford Credit Auto Owner Trust, Ser 2005-B, Cl A3 4.170%, 01/15/09 26 26 Ford Credit Auto Owner Trust, Ser 2007-B, Cl A3A 5.150%, 11/15/11 2,499 2,520 Ford Credit Auto Owner Trust, Ser 2007-B, Cl A4A 5.240%, 07/15/12 126 127 Harley-Davidson Motorcycle Trust, Ser 2007-1, Cl A2 5.290%, 12/15/07 1,426 1,428 Hyundai Auto Receivables Trust, Ser 2007-A, Cl A3A 5.040%, 01/17/12 1,414 1,419 Hyundai Auto Receivables Trust, Ser 2007-A, Cl A4 5.210%, 03/17/14 4,063 4,091 Nissan Auto Receivables Owner Trust, Ser 2006-B, Cl A3 5.160%, 02/15/10 1,021 1,022 Nissan Auto Receivables Owner Trust, Ser 2007-B, Cl A4 5.160%, 03/17/14 7,118 7,186 Triad Auto Receivables Owner Trust, Ser 2006-B, Cl A4 5.520%, 12/12/07 1,086 1,103 Triad Auto Receivables Owner Trust, Ser 2006-C, Cl A3 5.260%, 11/14/11 1,931 1,939 USAA Auto Owner Trust, Ser 2004-3, Cl A4 3.530%, 06/15/11 1,550 1,540 USAA Auto Owner Trust, Ser 2005-1, Cl A3 3.900%, 07/15/09 107 107 WFS Financial Owner Trust, Ser 2004-1, Cl A4 2.810%, 08/22/11 439 438 WFS Financial Owner Trust, Ser 2005-3, Cl A3A 4.250%, 06/17/10 288 287 World Omni Auto Receivables Trust, 2007-B, Cl A3A 5.280%, 01/17/12 1,615 1,627 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- World Omni Auto Receivables Trust, 2007-B, Cl A4 5.390%, 05/15/13 $ 2,798 $ 2,823 -------------- 46,363 -------------- CREDIT CARDS -- 0.7% American Express Issuance Trust, Ser 2007-2, Cl A (F) 5.043%, 12/01/07 10,722 10,677 Bank of America Credit Card Trust, Ser 2007-A8, Cl A8 5.590%, 11/17/14 987 1,025 Capital One Multi-Asset Execution Trust, Ser 2007-A7, Cl A7 5.750%, 07/15/20 5,376 5,570 Citibank Credit Card Issuance Trust, Ser 2007-A8, Cl A8 5.650%, 09/20/19 5,351 5,535 Discover Card Master Trust, Ser 2007-A1, Cl A1 5.650%, 03/16/20 14,963 15,378 MBNA Credit Card Master Note Trust, Ser 2003-A7, Cl A7 2.650%, 11/15/10 2,675 2,644 Washington Mutual Master Note Trust, Ser 2006-A2A, Cl A (C) (F) 4.702%, 12/15/07 3,491 3,465 -------------- 44,294 -------------- MORTGAGE RELATED SECURITIES -- 0.3% ABS Home Equity Loan Trust, Ser 2001-HE3, Cl A1 (F) 5.192%, 12/15/07 330 323 ACE Securities, Ser 2006-SI3, Cl A1 (F) 4.889%, 12/25/07 8,911 5,909 AFC Home Equity Loan Trust, Ser 2000-1, Cl 2A (F) 5.113%, 12/25/07 3,611 3,538 Contimortgage Home Equity Loan Trust, Ser 1997-2, Cl A9 7.090%, 04/15/28 38 38 Contimortgage Home Equity Loan Trust, Ser 1997-5, Cl A6 (F) 6.870%, 03/15/24 90 90 Countrywide Home Equity Loan Trust, Ser 2004-K, Cl A2 (F) 4.952%, 12/15/07 1,305 1,290 Countrywide Home Equity Loan Trust, Ser 2005-F, Cl 2A (F) 4.892%, 12/15/07 3,253 3,169 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 135 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Delta Funding Home Equity Loan, Ser 1999-3, Cl A1A (F) 5.472%, 12/15/07 $ 332 $ 326 Equivantage Home Equity Loan Trust, Ser 1997-2, Cl A3 (G) 7.775%, 12/01/07 310 309 Fleet Home Equity Trust, Ser 2001-1, Cl A (F) 5.390%, 12/01/07 101 99 Master Asset-Backed Securities Trust, Ser 2005-AB1, Cl A1B (G) 5.143%, 12/01/07 326 324 Morgan Stanley Home Equity Loans, Ser 2007-1, Cl A1 (F) 4.923%, 12/25/07 1,225 1,198 Origen Manufactured Housing, Ser 2002-A, Cl A1 (F) 4.892%, 12/15/07 65 65 Renaissance Home Equity Loan Trust, Ser 2005-3, Cl AF2 (G) 4.723%, 12/01/07 186 185 Renaissance Home Equity Loan Trust, Ser 2006-1, Cl AF3 (G) 5.608%, 12/01/07 998 987 Renaissance Home Equity Loan Trust, Ser 2007-2, Cl AF3 (G) 5.744%, 06/25/37 1,143 1,078 -------------- 18,928 -------------- OTHER ASSET-BACKED SECURITIES -- 1.5% CIGNA CDO, Ser 1996-1, Cl A2 (C) (G) 6.460%, 11/15/08 3,603 3,608 CNH Equipment Trust, Ser 2004-A, Cl A4A (F) 4.762%, 12/15/07 2,521 2,519 California Infrastructure PG&E, Ser 1997-1, Cl A8 6.480%, 12/26/09 167 167 California Infrastructure SCE, Ser 1997-1, Cl A7 6.420%, 12/26/09 761 762 Caterpillar Financial Asset Trust, Ser 2006-A, Cl A2 5.590%, 02/25/09 5 5 Connecticut RRB Special Purpose Trust, Ser 2001-1, Cl A5 6.210%, 12/30/11 1,371 1,435 Conseco Finance Home Loan Trust, Ser 2000-E, Cl M1 (F) 8.130%, 08/15/31 3,951 3,789 Conseco Finance Securitization, Ser 2000-4, Cl A6 (F) 8.310%, 05/01/32 922 794 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Asset-Backed Certificates, Ser 2001-BC3, Cl A (F) 5.269%, 12/25/07 $ 79 $ 78 Countrywide Asset-Backed Certificates, Ser 2003-BC2, Cl 2A1 (F) 5.389%, 12/25/07 115 112 Countrywide Asset-Backed Certificates, Ser 2005-11, Cl AF1 (F) 4.969%, 12/25/07 841 841 Countrywide Asset-Backed Certificates, Ser 2006-15, Cl A3 (F) 5.689%, 10/25/46 208 201 Countrywide Asset-Backed Certificates, Ser 2006-S1, Cl A2 5.549%, 08/25/21 4,080 4,034 Countrywide Asset-Backed Certificates, Ser 2007-3, Cl 2A1 (F) 4.973%, 12/25/07 1,272 1,240 Credit-Based Asset Servicing, Ser 2006-CB2, Cl AF2 (G) 5.501%, 12/25/36 1,999 1,881 Credit-Based Asset Servicing, Ser 2007-RP1, Cl A (C) (F) 5.099%, 12/25/07 19,691 19,491 Diamond Investment Grade CDO, Ser 1X, Cl A1 (F) 5.510%, 04/11/08 8,770 8,743 Domino's Pizza Master Issuer LLC, Ser 2007-1, Cl A2 (C) 5.261%, 04/25/37 3,452 3,408 Embarcadero Aircraft Securitization, Ser 2000-A, Cl A1 (C) (F) 6.230%, 12/15/07 4,442 3,775 Equity One Asset-Backed Securities, Ser 2003-2, Cl M1 5.050%, 09/25/33 1,050 1,019 First Horizon ABS Trust, Ser 2004-HE2, Cl A (F) 5.009%, 12/25/07 1,832 1,812 First Horizon ABS Trust, Ser 2006-HE2, Cl A (F) 5.003%, 12/25/07 793 707 GSAMP Trust, Ser 2003-SEA, Cl A1 (F) 5.189%, 12/25/07 2,675 2,600 Great America Leasing Receivables, Ser 2006-1, Cl A3 (C) 5.340%, 01/15/10 2,517 2,527 - -------------------------------------------------------------------------------- 136 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Green Tree Financial, Ser 1996-5, Cl A6 7.750%, 07/15/27 $ 848 $ 904 Lehman XS Trust, Ser 2005-5N, Cl 1A1 (F) 5.089%, 12/01/07 6,646 6,428 Lehman XS Trust, Ser 2005-7N, Cl 1A1B (F) 5.089%, 12/25/07 4,901 4,736 Lone Star CDO Funding, Ser 1X, Cl A 5.889%, 12/15/07 7,640 7,599 MSCC Heloc Trust, Ser 2005-1, Cl A (F) 4.979%, 12/25/07 594 573 Master Alternative Loans Trust, Ser 2004-4, Cl 1A1 5.500%, 05/25/34 2,969 2,798 Metropolitan Asset Funding, Ser 1997-B, Cl A1D (C) 7.130%, 03/20/12 43 43 Mid-State Trust, Ser 11, Cl A1 4.864%, 07/15/38 3,188 3,137 Oncor Electric Delivery Transition Bond, Ser 2003-1, Cl A2 4.030%, 02/15/12 2,376 2,360 SLM Student Loan Trust, Ser 2005-7, Cl A3 4.410%, 07/25/25 1,279 1,292 Securitized Asset-Backed Receivables LLC, Ser 2005-FR4, Cl A3 (F) 4.989%, 12/25/07 223 222 Start, Ser 2003-1, Cl X (F) 4.130%, 01/21/08 3,422 3,422 Start, Ser 2003-2, Cl X (F) 4.600%, 01/21/08 1,135 1,124 TMS SBA Loan Trust, Ser 1999-1, Cl A (F) 5.550%, 12/15/07 128 123 -------------- 100,309 -------------- Total Asset-Backed Securities (Cost $213,755) ($ Thousands) 209,894 -------------- CORPORATE OBLIGATIONS -- 19.9% CONSUMER DISCRETIONARY -- 1.3% COX Communications 7.875%, 08/15/09 440 462 CVS (C) 5.789%, 01/10/26 2,126 2,196 CVS Lease Pass-Through Trust (C) 6.036%, 12/10/28 10,655 10,878 5.880%, 01/10/28 189 188 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Clear Channel Communications 6.250%, 03/15/11 $ 2,740 $ 2,521 4.250%, 05/15/09 1,040 995 Comcast 9.000%, 09/01/08 710 730 6.500%, 01/15/15 3,635 3,805 6.500%, 01/15/17 (J) 1,825 1,917 Comcast Cable Communications 8.375%, 03/15/13 9,855 11,080 6.750%, 01/30/11 1,840 1,927 Daimler Finance LLC 8.500%, 01/18/31 1,055 1,349 7.300%, 01/15/12 1,995 2,157 6.500%, 11/15/13 9,115 9,669 Daimler Finance LLC MTN 5.750%, 09/08/11 1,800 1,847 Daimler Finance LLC MTN (F) 6.053%, 12/08/07 6,020 5,993 Eastman Kodak 7.250%, 11/15/13 2,445 2,457 Ford Motor (J) 7.450%, 07/16/31 2,770 2,091 Home Depot 5.875%, 12/16/36 1,695 1,436 Macy's Retail Holdings 5.350%, 03/15/12 1,617 1,576 News America 6.200%, 12/15/34 2,550 2,457 Rogers Cable 5.500%, 03/15/14 985 976 Target 4.000%, 06/15/13 355 333 Time Warner 7.700%, 05/01/32 4,185 4,599 6.875%, 05/01/12 350 370 Time Warner Entertainment 8.375%, 07/15/33 3,965 4,707 Wal-Mart Stores 6.500%, 08/15/37 1,863 1,910 5.800%, 02/15/18 6,180 6,333 ------------- 86,959 ------------- CONSUMER STAPLES -- 0.2% Altria Group 7.750%, 01/15/27 1,145 1,477 7.000%, 11/04/13 1,010 1,133 Estee Lauder 5.550%, 05/15/17 2,475 2,545 Kraft Foods 7.000%, 08/11/37 2,679 2,850 Philip Morris Capital 7.500%, 07/16/09 1,155 1,172 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 137 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Reynolds American (J) 7.875%, 05/15/09 $ 1,630 $ 1,698 Wal-Mart Stores 5.250%, 09/01/35 403 351 -------------- 11,226 -------------- ENERGY -- 1.7% Anadarko Finance, Ser B 7.500%, 05/01/31 5,363 5,996 Anadarko Petroleum 6.450%, 09/15/36 5,150 5,217 6.094%, 12/15/07 (F) 4,650 4,589 Canadian Natural Resources 6.250%, 03/15/38 2,070 2,037 5.700%, 05/15/17 1,510 1,515 Conoco 6.950%, 04/15/29 3,685 4,230 Conoco Funding 7.250%, 10/15/31 885 1,036 6.350%, 10/15/11 430 460 ConocoPhillips 5.900%, 10/15/32 10 10 ConocoPhillips Canada 5.625%, 10/15/16 2,670 2,742 Devon Financing 6.875%, 09/30/11 3,935 4,234 EMP Nacional del Petrole (C) 6.750%, 11/15/12 171 185 4.875%, 03/15/14 892 864 El Paso 6.950%, 06/01/28 2,250 2,076 El Paso Natural Gas (C) 5.950%, 04/15/17 1,120 1,122 GAZ Capital (C) 6.510%, 03/07/22 4,640 4,453 GAZ Capital (C) (J) 6.212%, 11/22/16 8,377 8,102 Hess 7.875%, 10/01/29 650 779 7.300%, 08/15/31 5,075 5,784 Husky Energy 6.800%, 09/15/37 1,125 1,183 Husky Oil 7.550%, 11/15/16 1,715 1,939 Kansas Gas & Electric 5.647%, 03/29/21 2,768 2,770 Kerr-McGee 6.950%, 07/01/24 2,325 2,501 Kinder Morgan Energy Partners 7.125%, 03/15/12 1,760 1,890 6.000%, 02/01/17 390 393 5.000%, 12/15/13 1,190 1,156 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Mantis Reef II (C) 4.799%, 11/03/09 $ 1,095 $ 1,112 Marathon Oil 6.000%, 10/01/17 2,301 2,350 Nakilat (C) 6.267%, 12/31/33 371 356 6.067%, 12/31/33 1,524 1,483 Pemex Project Funding Master Trust 6.994%, 12/15/07 (C) (F) 1,411 1,425 6.625%, 06/15/35 7,741 8,217 Petrobras International Finance 6.125%, 10/06/16 9,250 9,597 Petroleum Export (C) 4.623%, 06/15/10 337 336 Ras Laffan LNG II (C) 5.298%, 09/30/20 879 860 Ras Laffan LNG III (C) 6.332%, 09/30/27 2,590 2,585 Sonat 7.625%, 07/15/11 2,880 3,005 Southern Natural Gas (C) 5.900%, 04/01/17 1,240 1,243 Weatherford International (C) 6.350%, 06/15/17 3,230 3,378 5.950%, 06/15/12 2,995 3,126 Williams 8.750%, 03/15/32 (J) 2,170 2,620 7.750%, 06/15/31 740 818 Williams, Ser A 7.500%, 01/15/31 20 22 XTO Energy 7.500%, 04/15/12 1,320 1,465 -------------- 111,261 -------------- FINANCIALS -- 10.5% ABX Financing (C) 6.350%, 10/15/36 5,200 5,133 ACE INA Holdings 5.700%, 02/15/17 1,440 1,417 ASIF Global Financing XIX (C) 4.900%, 01/17/13 450 444 Ace INA Holdings 6.700%, 05/15/36 1,205 1,205 Aegon (F) 5.399%, 01/15/08 2,180 1,552 Aiful (C) 5.000%, 08/10/10 2,620 2,512 4.450%, 02/16/10 3,322 3,087 Allied Capital 6.625%, 07/15/11 6,845 7,190 Allied World Assurance 7.500%, 08/01/16 2,000 2,162 - -------------------------------------------------------------------------------- 138 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- American Express (F) 6.800%, 09/01/16 $ 1,535 $ 1,579 American International Group 6.250%, 03/15/37 5,000 4,474 4.700%, 10/01/10 2,975 2,993 American International Group MTN 5.450%, 05/18/17 3,650 3,607 Australia & New Zealand Banking Group (F) 4.963%, 10/29/49 1,400 1,134 BAC Capital Trust XI 6.625%, 05/23/36 1,645 1,581 BAC Capital Trust XIV (F) 5.630%, 03/15/12 2,535 2,285 BNP Paribas (F) 5.238%, 03/23/08 1,080 913 BRE Properties+ 7.450%, 01/15/11 3,100 3,347 Banco Mercantile (C) (F) 6.135%, 10/13/16 1,479 1,486 Bank One 7.875%, 08/01/10 4,440 4,803 Bank of America 5.750%, 12/01/17 3,525 3,525 5.420%, 03/15/17 2,500 2,429 5.375%, 06/15/14 (J) 1,450 1,458 Bank of Ireland (F) 5.500%, 12/05/07 1,030 889 Bank of Scotland (F) 5.625%, 11/29/49 330 268 Bankamerica Capital II 8.000%, 12/15/26 402 418 Banponce Trust I, Ser A 8.327%, 02/01/27 2,410 2,515 Barclays Bank (C) 6.050%, 12/04/17 1,781 1,777 Barclays Bank (F) 5.563%, 01/02/08 780 616 Bear Stearns 6.400%, 10/02/17 6,140 6,001 Capital One Bank 4.875%, 05/15/08 2,985 2,962 Capital One Capital III 7.686%, 08/15/36 2,000 1,703 Capital One Financial 6.750%, 09/15/17 1,190 1,166 Chuo Mitsui Trust & Banking (C) (F) 5.506%, 12/15/49 1,814 1,663 Cigna 6.150%, 11/15/36 1,620 1,522 Citigroup 6.125%, 11/21/17 (J) 1,250 1,286 3.625%, 02/09/09 3,125 3,092 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Corp Andina de Fomento 5.125%, 05/05/15 $ 710 $ 690 Countrywide Financial MTN (F) 5.430%, 12/26/07 2,284 1,718 Countrywide Financial MTN, Ser A (F) 5.768%, 12/19/07 650 642 Countrywide Home Loan MTN, Ser K (J) 4.250%, 12/19/07 9,200 9,109 Credit Suisse First Boston (F) 5.375%, 12/19/07 655 524 Credit Suisse First Boston London (C) (F) (L) 0.000%, 12/24/07 4,701 4,561 0.000%, 12/24/07 8,339 8,090 Danske Bank (C) (F) 5.914%, 12/16/07 536 506 Delta Airlines 6.619%, 03/18/11 422 421 Den Norske Bank (F) 5.813%, 02/18/08 390 316 Depfa ACS Bank (C) 5.125%, 03/16/37 4,200 4,185 Deutsche Bank Capital Funding Trust (C) (F) 5.628%, 01/19/49 4,789 4,260 Developers Divers Realty+ 5.375%, 10/15/12 890 906 Dresdner Funding Trust I (C) 8.151%, 06/30/31 1,336 1,370 Dryden Investor Trust (C) (H) 7.157%, 07/23/08 978 983 ENEL Finance International 6.800%, 09/15/37 1,240 1,296 Eksportfinans 5.500%, 05/25/16 4,250 4,510 Eksportfinans MTN, Ser G 5.125%, 10/26/11 1,078 1,116 Equity One+ 3.875%, 04/15/09 7,100 7,009 Export-Import Bank of Korea 5.500%, 10/17/12 6,480 6,586 Farmers Exchange Capital (C) 7.200%, 07/15/48 3,582 3,601 7.050%, 07/15/28 1,063 1,088 Farmers Insurance Exchange (C) 8.625%, 05/01/24 4,118 4,652 First Industrial L.P. MTN 7.500%, 12/01/17 2,765 3,051 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 139 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Ford Motor Credit LLC 7.875%, 06/15/10 $ 7,200 $ 6,683 7.375%, 10/28/09 15,740 14,903 7.250%, 10/25/11 329 297 6.625%, 06/16/08 10,480 10,306 Fund American 5.875%, 05/15/13 1,448 1,481 GMAC LLC 7.821%, 12/25/07 (F) 11,009 9,028 7.750%, 01/19/10 2,370 2,250 7.250%, 03/02/11 2,755 2,440 6.125%, 01/22/08 (J) 415 411 5.625%, 05/15/09 7,680 7,260 General Electric Capital (F) 6.375%, 05/15/08 11,905 12,130 General Electric Capital MTN 5.250%, 10/19/12 3,520 3,607 General Electric Capital MTN, Ser A 6.000%, 06/15/12 6,395 6,738 3.750%, 12/15/09 4,092 4,056 General Electric Capital MTN, Ser G 6.150%, 08/07/37 3,156 3,377 Glen Meadow Pass Through (C) 6.505%, 02/12/67 2,900 2,749 Glitnir Banki (C) 7.451%, 03/14/08 500 507 6.375%, 09/25/12 3,100 3,131 6.330%, 07/28/11 2,440 2,546 Glitnir Banki (C) (F) 6.693%, 06/15/16 4,480 4,625 Goldman Sachs Capital I 6.345%, 02/15/34 1,995 1,772 Goldman Sachs Capital II (F) 5.793%, 12/29/49 21,851 19,520 Goldman Sachs Group 6.875%, 01/15/11 1,720 1,827 6.600%, 01/15/12 2,630 2,797 6.450%, 05/01/36 1,175 1,118 5.125%, 01/15/15 2,475 2,423 HBOS (C) (F) 5.375%, 11/29/49 962 880 HBOS Capital Funding (C) 6.071%, 12/31/07 1,120 1,045 HBSC Holdings PLC 6.500%, 09/15/37 2,965 2,791 HSBC Bank (F) 5.625%, 12/19/07 1,460 1,139 5.538%, 12/11/07 2,320 1,786 HSBC Finance 8.000%, 07/15/10 2,330 2,501 7.000%, 05/15/12 1,975 2,095 6.375%, 11/27/12 365 381 HVB Funding Trust III (C) 9.000%, 10/22/31 1,226 1,364 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Health Care Properties+ 6.000%, 01/30/17 $ 6,000 $ 5,816 5.650%, 12/15/13 3,955 3,870 Highwoods Realty LP+ 7.500%, 04/15/18 1,339 1,432 7.125%, 02/01/08 3,803 3,808 Hongkong & Shanghai Bank, Ser 3H (F) 5.250%, 01/09/08 750 540 ILFC E-Capital Trust II (C) (F) (J) 6.250%, 12/21/65 1,200 1,137 International Lease Finance MTN 5.750%, 06/15/11 3,570 3,634 5.650%, 06/01/14 1,775 1,805 International Lease Finance MTN (F) 5.719%, 02/24/08 1,920 1,912 JPMorgan Chase 6.000%, 10/01/17 5,400 5,456 5.750%, 01/02/13 3,670 3,757 5.150%, 10/01/15 240 231 5.125%, 09/15/14 (J) 445 438 JPMorgan Chase Capital XVIII, Ser R 6.950%, 08/17/36 990 914 JPMorgan Chase, Ser T 6.550%, 09/29/36 709 622 Kaupthing Bank (C) 7.125%, 05/19/16 12,000 11,672 5.750%, 10/04/11 1,120 1,069 Kaupthing Bank (C) (F) 5.938%, 01/12/08 6,870 6,840 Landsbanki Islands (C) 6.100%, 08/25/11 6,520 6,473 Lazard Group 7.125%, 05/15/15 6,135 6,232 6.850%, 06/15/17 4,660 4,621 Lehman Brothers Holdings 6.875%, 07/17/37 1,120 1,088 4.500%, 07/26/10 1,155 1,141 Lehman Brothers Holdings Capital Trust VII MTN (F) 5.857%, 11/29/49 20,350 18,092 Lehman Brothers Holdings Capital Trust VIII (F) 6.371%, 02/29/08 1,310 1,115 Lehman Brothers Holdings MTN 11.000%, 11/07/16 (F) 5,269 5,646 8.920%, 02/16/08 (F) 3,023 3,022 7.394%, 12/17/07 (F) 14,410 14,064 6.200%, 09/26/14 1,560 1,560 5.750%, 05/17/13 (J) 1,155 1,161 5.250%, 02/06/12 965 952 0.000%, 12/20/07 (F) (M) 4,940 5,978 - -------------------------------------------------------------------------------- 140 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Lehman Brothers Holdings MTN, Ser H (F) (M) 1.427%, 05/30/08 $ 3,736 $ 4,085 Liberty Mutual Group (C) 7.500%, 08/15/36 2,764 2,840 Liberty Property+ 7.750%, 04/15/09 1,026 1,058 6.375%, 08/15/12 397 415 Lloyds TSB Bank, Ser 1 (F) 5.688%, 05/14/08 870 696 Lloyds TSB Bank, Ser 2 (F) 5.750%, 02/21/08 760 600 Lloyds TSB Bank, Ser 3 (F) 5.523%, 02/29/08 1,600 1,280 MUFG Capital Finance 1 Ltd. (F) 6.346%, 07/25/49 1,840 1,767 6.346%, 07/25/49 1,459 1,364 Mangrove Bay Pass-Through Trust (C) (F) 6.102%, 07/15/33 2,095 2,012 Marathon Oil 6.600%, 10/01/37 2,356 2,455 Master Alternative Loans Trust, Ser 2006-3, Cl AA3 6.250%, 12/01/07 802 810 Merna Reinsurance, Ser B (C) (F) 6.981%, 01/03/08 4,950 4,919 Merrill Lynch 7.430%, 09/01/22 4 5 6.400%, 08/28/17 1,680 1,706 Merrill Lynch MTN 8.950%, 05/18/08 (F) 4,315 4,148 8.680%, 05/02/08 (F) 4,160 4,009 6.050%, 08/15/12 4,120 4,184 Metlife 6.400%, 12/15/36 11,635 10,695 Mizuho Finance 8.375%, 04/27/09 785 801 8.375%, 12/29/49 530 541 Morgan Stanley 5.375%, 10/15/15 1,445 1,389 5.300%, 03/01/13 2,807 2,781 4.750%, 04/01/14 2,270 2,164 Morgan Stanley MTN (F) 5.659%, 01/18/08 1,530 1,428 Morgan Stanley MTN, Ser E 5.450%, 01/09/17 2,965 2,858 NB Capital Trust IV 8.250%, 04/15/27 4,865 5,059 National Capital Trust II (C) (F) 5.486%, 12/17/07 3,207 2,939 National Westminster Bank, Ser B (F) 5.563%, 01/09/08 740 602 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- National Westminster Bank, Ser C (F) 5.688%, 02/27/08 $ 160 $ 129 Nationwide Mutual Insurance (C) 6.600%, 04/15/34 2,483 2,565 North Front Pass-Through Trust (C) (F) 5.810%, 12/15/07 5,291 5,079 PF Export Receivables Master Trust (C) 6.436%, 06/01/15 1,593 1,607 PNC Funding 5.250%, 11/15/15 3,165 3,089 Paribas, Ser 1986 (F) 5.375%, 12/11/07 693 582 Pemex Finance 9.690%, 08/15/09 875 910 Power Receivables Financial 6.290%, 01/01/12 3,216 3,362 6.290%, 01/01/12 (C) 1,015 1,062 Prime Property Funding+ (C) 5.600%, 06/15/11 3,380 3,432 5.500%, 01/15/14 5,000 4,974 Prologis+ 5.500%, 04/01/12 2,800 2,830 5.250%, 11/15/10 870 870 Prudential Financial MTN 6.625%, 12/01/37 498 494 6.000%, 12/01/17 2,347 2,323 5.700%, 12/14/36 1,430 1,271 RBS Capital Trust III (F) 5.512%, 03/30/08 400 363 RSHB Capital (C) 6.299%, 05/15/17 5,600 5,255 Rabobank Capital Fund Trust II (C) (F) 5.260%, 12/29/49 1,171 1,124 Rabobank Capital Fund Trust III (C) (F) 5.254%, 12/31/07 1,337 1,263 Residential Capital LLC 8.314%, 01/17/08 (F) 2,156 1,601 7.595%, 02/22/08 (F) 1,320 970 7.500%, 02/22/08 2,310 1,525 7.125%, 11/21/08 3,130 2,441 6.500%, 06/01/12 130 85 6.500%, 04/17/13 1,207 782 6.224%, 06/09/08 (F) (J) 500 420 Resona Bank Ltd. (C) (F) 5.850%, 09/29/49 1,793 1,695 Resona Preferred Global Securities (C) (F) 7.191%, 07/30/49 2,590 2,464 Royal Bank of Canada (F) 5.548%, 12/21/07 1,010 860 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 141 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Royal Bank of Scotland Group PLC 7.640%, 01/01/08 (F) $ 2,535 $ 2,574 6.990%, 04/04/08 (C) 2,230 2,195 5.563%, 12/11/07 (F) 2,530 1,948 5.000%, 10/01/14 2,505 2,511 SLM MTN (F) (K) 4.660%, 12/17/07 23,225 23,225 SLM MTN, Ser CPI (F) 3.100%, 12/01/07 4,180 3,950 SMFG Preferred Capital (C) (F) 6.078%, 01/25/17 6,810 6,249 Security Benefit Life (C) 8.750%, 05/15/16 5,200 6,018 Shinsei Finance Cayman Ltd. (C) (F) (J) 6.418%, 01/29/49 4,960 4,356 Simon Property Group LP+ 5.750%, 05/01/12 1,875 1,918 Societe Generale (F) 5.469%, 05/26/08 680 561 5.395%, 05/26/08 180 148 Standard Chartered I (F) 5.259%, 01/16/08 1,840 1,306 Standard Chartered II (F) 5.625%, 05/07/08 2,800 2,016 Standard Chartered III (F) 5.588%, 12/04/07 200 142 Standard Chartered IV (F) 5.588%, 01/06/08 290 206 Stingray Pass-Through Trust (C) 5.902%, 01/12/15 3,600 2,487 Sumitomo Mitsui Banking 8.150%, 08/01/08 442 452 8.150%, 08/29/49 951 972 SunTrust Capital VIII (F) (J) 6.100%, 12/06/07 5,450 4,467 Suntrust Preferred Capital I (F) 5.853%, 12/15/11 17,379 16,276 TNK-BP Finance 7.875%, 03/13/18 (C) 2,140 2,105 7.500%, 07/18/16 140 137 7.500%, 07/18/16 (C) 3,750 3,624 6.625%, 03/20/17 (C) 1,750 1,598 Toll Road Investment Partners II (C) (E) 0.000%, 02/15/45 6,915 985 Trans-Canada Pipelines 6.200%, 10/15/37 2,804 2,858 Travelers (F) (J) 6.250%, 02/15/08 5,700 5,404 Twin Reefs Pass-Through (C) (F) 5.660%, 12/10/07 900 610 UBS Capital IX (F) 6.189%, 04/15/49 1,659 1,600 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- UDR MTN+ 5.000%, 01/15/12 $ 2,000 $ 2,034 UDR+ 5.500%, 04/01/14 2,900 2,938 UFJ Finance Aruba 8.750%, 08/13/49 316 323 8.750%, 11/29/49 1,060 1,083 Wachovia 5.250%, 08/01/14 250 243 Wachovia Bank 6.600%, 01/15/38 6,540 6,526 6.000%, 11/15/17 6,800 6,846 Wachovia Capital Trust III (F) 5.800%, 03/15/11 4,027 3,874 Washington Mutual 4.625%, 04/01/14 3,040 2,435 4.000%, 01/15/09 663 624 Washington Mutual Preferred Funding (C) 6.534%, 03/29/49 300 159 Wells Fargo 5.000%, 11/15/14 1,145 1,129 Wells Fargo Capital X 5.950%, 12/15/36 960 879 Westfield Capital (C) 4.375%, 11/15/10 1,900 1,857 Westfield Group (C) 5.400%, 10/01/12 2,230 2,260 Westpac Banking (F) 5.306%, 03/30/08 870 714 Westpac Capital Trust IV (C) (F) 5.256%, 12/29/49 1,259 1,106 Woodbourne Pass-Through Trust (C) (F) 5.767%, 12/08/07 2,500 2,491 ZFS Finance USA Trust I 6.150%, 12/15/10 1,225 1,180 ZFS Finance USA Trust II (C) (F) 6.450%, 12/15/65 1,324 1,213 -------------- 693,295 -------------- HEALTH CARE -- 0.6% Abbott Laboratories 5.600%, 11/30/17 2,935 2,998 AstraZeneca PLC (J) 5.400%, 09/15/12 2,960 3,056 AstraZeneca PLC 5.400%, 06/01/14 1,680 1,717 5.400%, 06/01/14 70 71 Bristol-Myers Squibb 5.875%, 11/15/36 1,290 1,280 Cardinal Health 5.850%, 12/15/17 4,875 4,949 - -------------------------------------------------------------------------------- 142 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Coventry Health Care 5.950%, 03/15/17 $ 3,310 $ 3,236 HCA 5.750%, 03/15/14 5,548 4,535 Merck (J) 5.750%, 11/15/36 1,011 1,010 Schering-Plough 6.550%, 09/15/37 2,620 2,761 Tenet Healthcare (J) 7.375%, 02/01/13 168 148 WellPoint 5.875%, 06/15/17 2,375 2,384 Wyeth 6.950%, 03/15/11 8,650 9,278 5.950%, 04/01/37 3,610 3,625 -------------- 41,048 -------------- INDUSTRIALS -- 2.5% Abu Dhabi National Energy (C) 5.620%, 10/25/12 12,992 13,160 Aetna 6.750%, 12/15/37 3,420 3,397 Air 2 US (C) 8.027%, 10/01/19 5,060 5,086 America West Airlines, Ser 1999-1 7.930%, 01/02/19 4,655 4,888 American Airlines, Ser 1999-1 7.024%, 10/15/09 2,320 2,329 American Water Capital (C) 6.593%, 10/15/37 644 685 6.085%, 10/15/17 644 673 Cedar Brakes I LLC (C) 8.500%, 02/15/14 1,457 1,623 Cedar Brakes II LLC (C) 9.875%, 09/01/13 5,258 5,774 Clorox 5.950%, 10/15/17 1,133 1,148 Continental Airlines, Ser 1997, Cl1A 7.461%, 04/01/15 1,557 1,553 Continental Airlines, Ser 1999-2 7.256%, 03/15/20 1,370 1,414 Continental Airlines, Ser A 5.983%, 04/19/22 3,000 2,884 Continental Airlines, Ser AMBC 6.236%, 03/15/20 2,221 2,199 Delhaize Group 6.500%, 06/15/17 4,800 4,913 Delta Air Lines, Ser 2000-1 7.379%, 05/18/10 2,742 2,755 Delta Air Lines, Ser 2001-1 7.111%, 09/18/11 13,350 13,450 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Delta Air Lines (C) 6.821%, 08/10/22 $ 2,600 $ 2,563 Diageo Capital 5.750%, 10/23/17 1,286 1,302 E.I. Du Pont de Nemours 5.000%, 01/15/13 896 903 EnCana 6.500%, 02/01/38 3,425 3,494 General Electric 5.250%, 12/06/17 4,477 4,436 Hutchison Whampoa International (C) 7.450%, 11/24/33 3,915 4,415 Kinder Morgan Energy Partners MTN 6.950%, 01/15/38 160 168 McDonald's 6.300%, 10/15/37 3,003 3,125 5.800%, 10/15/17 830 854 News America (C) 6.650%, 11/15/37 4,115 4,190 Nordstrom 7.000%, 01/15/38 4,338 4,371 Northwest Airlines, Ser 1A-2 6.841%, 04/01/11 4,500 4,501 Panhandle East Pipeline 6.200%, 11/01/17 784 789 Pemex Project Funding Master Trust 6.625%, 06/15/35 1,345 1,424 6.625%, 06/15/35 (C) 195 207 Pepsico 4.650%, 02/15/13 836 835 Petrobras International Finance 5.875%, 03/01/18 3,525 3,604 Santander Perpetual (C) (F) 6.671%, 04/24/08 5,200 5,019 Stauffer Chemical (E) 0.000%, 04/15/10 300 272 0.000%, 04/15/17 350 214 0.000%, 04/15/18 860 496 Target 6.500%, 10/15/37 2,907 2,821 Textron 5.600%, 12/01/17 1,140 1,140 Tyco International Group 7.000%, 06/15/28 1,875 2,116 6.875%, 01/15/29 6,924 7,293 6.750%, 02/15/11 1,170 1,266 6.375%, 10/15/11 8,785 9,177 6.125%, 11/01/08 320 323 6.125%, 01/15/09 120 122 6.000%, 11/15/13 1,945 2,015 United Airlines 6.602%, 09/01/13 1,946 1,936 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 143 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- United Technologies 6.500%, 06/01/09 $ 1,670 $ 1,732 5.400%, 05/01/35 670 645 Walt Disney 4.700%, 12/01/12 3,990 3,981 4.700%, 12/01/12 1,306 1,303 Waste Management 7.375%, 05/15/29 5 6 7.125%, 12/15/17 4,840 5,334 7.100%, 08/01/26 1,375 1,493 Yum! Brands 6.875%, 11/15/37 2,940 2,872 6.250%, 03/15/18 1,170 1,179 -------------- 161,867 -------------- INFORMATION TECHNOLOGY -- 0.1% Corning 7.250%, 08/15/36 995 1,115 Electronic Data Systems 7.125%, 10/15/09 2,990 3,091 Xerox 5.500%, 05/15/12 2,265 2,306 -------------- 6,512 -------------- MATERIALS -- 0.1% CodelCo (C) 4.750%, 10/15/14 900 861 Vale Overseas Ltd. 8.250%, 01/17/34 210 251 6.875%, 11/21/36 7,748 8,054 Weyerhaeuser 6.750%, 03/15/12 410 432 -------------- 9,598 -------------- SOVEREIGN -- 0.5% Emirate of Abu Dhabi (C) 5.500%, 08/02/12 6,800 7,152 Quebec Province 5.125%, 11/14/16 5,330 5,570 Republic of Italy 5.375%, 06/15/33 4,872 5,035 Russian Federation (G) 7.500%, 03/31/30 1,066 1,210 United Mexican States (J) 5.625%, 01/15/17 2,504 2,539 United Mexican States MTN, Ser A 7.500%, 04/08/33 218 263 6.750%, 09/27/34 9,488 10,617 5.875%, 01/15/14 1,645 1,709 -------------- 34,095 -------------- - -------------------------------------------------------------------------------- Face Amount ($ Thousands) Market Value Description /Contracts ($ Thousands) - -------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 1.1% AT&T 6.150%, 09/15/34 $ 3,855 $ 3,861 5.100%, 09/15/14 7,790 7,694 America Movil 6.375%, 03/01/35 1,549 1,562 6.125%, 11/15/37 1,410 1,377 5.625%, 11/15/17 2,350 2,316 BellSouth 4.750%, 11/15/12 190 189 BellSouth Telecommunications 7.000%, 12/01/95 2,415 2,501 British Telecom PLC 8.375%, 12/15/10 1,310 1,437 Deutsche Telekom International Finance 5.750%, 03/23/16 2,175 2,186 Embarq (J) 7.995%, 06/01/36 1,646 1,740 France Telecom 8.500%, 03/01/08 1,070 1,418 7.750%, 03/01/11 1,695 1,842 Koninklijke 8.000%, 10/01/10 5,100 5,461 New Cingular Wireless Services 8.125%, 05/01/12 1,255 1,410 Qwest 7.500%, 10/01/14 4,835 4,895 Rogers Communications 6.375%, 03/01/14 3,835 3,975 Sprint Capital 8.750%, 03/15/32 910 989 8.375%, 03/15/12 5,300 5,682 6.900%, 05/01/19 120 118 6.125%, 11/15/08 2,950 2,946 Sprint Nextel 6.000%, 12/01/16 2,136 2,034 Telecom Italia Capital 5.250%, 11/15/13 580 572 5.250%, 10/01/15 370 360 4.950%, 09/30/14 1,320 1,271 Telefonica Emisiones 6.221%, 07/03/17 945 983 5.984%, 06/20/11 5,275 5,430 Verizon Communications 7.375%, 09/01/12 1,730 1,916 6.875%, 06/15/12 465 504 Vodafone Group PLC 5.625%, 02/27/17 2,470 2,471 -------------- 69,140 -------------- - -------------------------------------------------------------------------------- 144 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- UTILITIES -- 1.3% Allegheny Energy Supply (C) (J) 8.250%, 04/15/12 $ 1,765 $ 1,893 Arizona Public Services 8.000%, 12/30/15 758 870 CMS Energy 6.550%, 07/17/17 1,475 1,432 Cogentrix Energy (C) 8.750%, 10/15/08 6,200 6,205 Commonwealth Edison 6.150%, 09/15/17 2,010 2,082 4.700%, 04/15/15 1,362 1,287 Commonwealth Edison, Ser 104 5.950%, 08/15/16 1,600 1,636 Commonwealth Edison, Ser 98 6.150%, 03/15/12 3,168 3,298 DPL 6.875%, 09/01/11 4,835 5,163 Dominion Resources 5.700%, 09/17/12 3,560 3,640 4.750%, 12/15/10 740 740 4.125%, 02/15/08 250 249 Dominion Resources, Ser D 5.125%, 12/15/09 850 854 Duke Energy Carolinas 5.625%, 11/30/12 425 444 Empresa Nacional Electric 8.625%, 08/01/15 340 393 Exelon 5.625%, 06/15/35 2,605 2,327 FirstEnergy, Ser B 6.450%, 11/15/11 3,230 3,336 FirstEnergy, Ser C 7.375%, 11/15/31 5,355 5,757 Florida Power 6.350%, 09/15/37 1,121 1,198 Hydro-Quebec, Ser JL 6.300%, 05/11/11 1,050 1,127 Intergas Finance (C) 6.375%, 05/14/17 4,853 4,252 Midamerican Energy Holdings 6.500%, 09/15/37 785 816 6.125%, 04/01/36 543 541 Nevada Power, Ser A 8.250%, 06/01/11 4,305 4,754 NiSource Finance 6.150%, 03/01/13 1,304 1,373 Northwestern 5.875%, 11/01/14 1,532 1,537 Pacific Gas & Electric 5.800%, 03/01/37 840 803 5.625%, 11/30/17 2,285 2,283 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Pacific Gas & Electric (J) 6.050%, 03/01/34 $ 3,275 $ 3,242 Pacificorp 6.250%, 10/15/37 3,180 3,286 Power Contract Financing (C) 6.256%, 02/01/10 3,048 3,115 Progress Energy 6.850%, 04/15/12 1,710 1,839 Public Service Colorado 7.875%, 10/01/12 2,840 3,225 Swepco Capital Trust I (F) 5.250%, 10/01/43 4,465 4,496 TXU, Ser P 5.550%, 11/15/14 370 284 TXU, Ser Q 6.500%, 11/15/24 410 289 TXU, Ser R (J) 6.550%, 11/15/34 4,385 3,032 Virginia Electric & Power 6.350%, 11/30/37 1,955 1,971 5.100%, 11/30/12 2,870 2,874 -------------- 87,943 -------------- Total Corporate Obligations (Cost $1,315,840) ($ Thousands) 1,312,944 -------------- U.S. GOVERNMENT AGENCY OBLIGATIONS-- 1.7% FHLB 5.500%, 12/01/37 4,341 4,372 4.625%, 10/10/12 (J) 5,000 5,130 4.560%, 12/07/07 (E) 1,155 1,154 4.500%, 12/01/37 12,117 11,816 4.387%, 12/21/07 (B) (E) 3,600 3,591 4.350%, 12/26/07 (E) 2,995 2,986 4.264%, 12/28/07 (E) 7,630 7,606 4.150%, 12/07/07 (B) 10,485 10,477 4.120%, 12/05/07 (B) 7,335 7,331 FHLMC 5.625%, 11/23/35 5,250 5,312 4.759%, 12/07/07 (B) 8,460 8,456 4.750%, 01/18/11 (J) 6,830 7,033 4.380%, 12/20/07 (B) (E) 4,670 4,659 4.250%, 12/27/07 (B) 735 733 FHLMC MTN 5.250%, 03/15/12 3,223 3,256 FNMA 7.250%, 01/15/10 6,400 6,859 5.550%, 03/29/10 1,289 1,290 5.400%, 03/26/12 1,580 1,587 5.125%, 04/15/11 3,000 3,129 4.750%, 11/19/12 3,217 3,318 4.709%, 12/07/07 (B) 2,500 2,499 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 145 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount ($ Thousands)/ Market Value Description Notional Amount ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- 4.400%, 12/12/07 (E) $ 400 $ 400 4.140%, 12/05/07 (B) 1,665 1,665 1.000%, 03/17/08 (B) (E) 8,740 8,633 -------------- Total U.S. Government Agency Obligations (Cost $112,572) ($ Thousands) 113,292 -------------- FOREIGN BONDS -- 0.2% Canadian Government 4.000%, 12/01/31 1,188 1,613 Deutsche Bundesrepublik 3.750%, 01/04/15 6,750 9,723 Republic of Brazil 6.000%, 01/17/17 3,105 3,172 -------------- Total Foreign Bonds (Cost $13,099) ($ Thousands) 14,508 -------------- PREFERRED STOCK -- 0.1% Aegon, 6.235% (F) 27,000 525 Aegon, 6.375% 79,895 1,622 Deutsche Bank Contingent Capital Trust II, 6.550% 38,000 849 Fannie Mae, 5.950% 13,000 306 Fannie Mae, 7.000% 12,000 570 Merrill Lynch, 5.860% (F) (J) 63,100 1,171 Metlife, 6.500% 86,821 1,975 -------------- Total Preferred Stock (Cost $8,212) ($ Thousands) 7,018 -------------- PURCHASED SWAPTIONS -- 0.1% U.S. Swaption Call, Barclays 105,907 1,706 U.S. Swaption Call, Barclays 13,735 1,125 U.S. Swaption Call, Merrill Lynch 88,575 1,575 U.S. Swaption Call, Merrill Lynch 11,686 1,053 U.S. Swaption Put, Barclays 85,920 1,240 U.S. Swaption Put, Barclays 11,026 821 -------------- Total Purchased Swaptions (Cost $3,055) ($ Thousands) 7,520 -------------- MUNICIPAL BONDS -- 0.1% Michigan Tobacco Settlement Finance, Ser A, RB 7.309%, 06/01/34 $ 2,510 $ 2,446 San Diego, Tobacco Settlement Asset Backed, RB 7.125%, 06/01/32 1,427 1,400 -------------- Total Municipal Bonds (Cost $3,983) ($ Thousands) 3,846 -------------- - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CASH EQUIVALENTS -- 22.2% Evergreen Select Money Market Fund, Institutional Class, 5.290%** 1,548,771 $ 1,549 SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 174,712,250 174,712 SEI Liquidity Fund L.P., 5.367%++** (K) 1,288,808,922 1,288,809 -------------- Total Cash Equivalents (Cost $1,465,070) ($ Thousands) 1,465,070 -------------- U.S. TREASURY OBLIGATIONS -- 20.7% U.S. Treasury Bills (A) (J) 4.625%, 02/15/17 $ 45,400 47,663 U.S. Treasury Bonds 8.875%, 02/15/19 (J) 7,358 10,420 8.750%, 08/15/20 430 617 8.125%, 08/15/19 (J) 10,595 14,386 7.500%, 11/15/16 (J) 2,362 2,977 7.125%, 02/15/23 (J) 25,842 33,669 6.625%, 02/15/27 (J) 5,374 6,872 6.250%, 08/15/23 to 05/15/30 (J) 12,271 15,092 6.125%, 11/15/27 (J) 44,109 53,816 5.375%, 02/15/31 (J) 3,553 4,039 5.000%, 05/15/37 (J) 14,413 15,827 4.500%, 03/31/12 to 02/15/36 (J) 152,839 159,341 3.875%, 01/15/09 to 04/15/29 (D) 7,859 8,728 3.875%, 10/31/12 (J) 56,097 57,254 3.625%, 04/15/28 (D) (J) 29,903 38,472 2.375%, 01/15/17 to 01/15/27 (D) (J) 25,861 27,523 2.000%, 01/15/26 (D) 641 647 U.S. Treasury Bonds TIPS 3.375%, 01/15/12 (D) 270 295 2.500%, 07/15/16 (D) (J) 21,812 23,421 2.375%, 04/15/11 (A) (D) (J) 21,943 22,881 2.000%, 07/15/14 (D) (J) 9,622 9,967 1.875%, 07/15/15 (D) (J) 34,801 35,660 0.875%, 04/15/10 (D) 66 66 U.S. Treasury Notes 5.125%, 05/15/16 (J) 56,888 61,723 4.875%, 10/31/08 to 02/15/12 (J) 20,069 20,505 4.750%, 05/15/14 1,601 1,703 4.750%, 01/31/12 to 02/15/37 (J) 202,524 213,785 4.625%, 07/31/09 to 07/31/12 (J) 24,853 25,495 4.500%, 03/31/09 to 05/15/17 (J) 41,386 42,942 4.250%, 09/30/12 to 11/15/17 (J) 38,207 39,394 4.125%, 08/31/12 (J) 3,750 3,862 4.000%, 04/15/10 1,370 1,400 4.000%, 08/31/09 (J) 113,980 115,743 3.750%, 05/15/08 (J) 9,730 9,750 - -------------------------------------------------------------------------------- 146 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount/ Market Value Description Notional Amounts ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- 3.625%, 05/15/13 $ 1,102 $ 1,109 3.625%, 10/31/09 (J) 69,276 69,996 3.500%, 11/15/09 30,465 30,758 3.500%, 02/15/10 (J) 15,670 15,816 3.375%, 11/30/12 72,223 72,093 3.375%, 02/15/08 (J) 33,830 33,835 U.S. Treasury STRIPS 0.000%, 08/15/19 (E) 10,176 6,101 0.000%, 11/15/21 (E) (J) 23,570 12,549 -------------- Total U.S. Treasury Obligations (Cost $1,313,222) ($ Thousands) 1,368,192 -------------- COMMERCIAL PAPER (A) -- 1.2% FINANCIALS -- 1.2% BNP Paribas Finance 4.750%, 12/17/07 15,980 15,948 Merrill Lynch 4.930%, 12/20/07 16,970 16,928 Rabobank USA Financial 4.620%, 12/20/07 27,270 27,204 Societe Generale 4.744%, 12/17/07 20,565 20,522 UBS Finance 5.771%, 12/20/07 110 110 4.790%, 12/27/07 2,555 2,546 -------------- Total Commercial Paper (Cost $83,263) ($ Thousands) 83,258 -------------- CERTIFICATES OF DEPOSIT (F) -- 0.1% JPMorgan Chase 8.750%, 02/28/08 2,751 2,721 7.590%, 12/28/07 2,630 2,518 -------------- Total Certificates of Deposit (Cost $5,259) ($ Thousands) 5,239 -------------- LOAN PARTICIPATION -- 0.0% Delphi, 1st Lien 0.000%, 12/31/07 1,000 995 -------------- Total Loan Participation (Cost $1,006) ($ Thousands) 995 -------------- EURODOLLAR -- 0.0% Barclays O/S Investment (F) 5.615%, 05/01/08 160 130 -------------- Total Eurodollar (Cost $147) ($ Thousands) 130 -------------- - -------------------------------------------------------------------------------- Shares/Face Amount ($ Thousands)/ Market Value Description Notional Amount ($ Thousands)/Contracts ($ Thousands) - -------------------------------------------------------------------------------- REPURCHASE AGREEMENT (I) -- 6.1% Deutsche Bank 4.500%, dated 11/30/07, to be repurchased on 12/03/07, repurchase price $401,350,450 (collateralized by U.S. Government Obligations, ranging in par value $41,804,700-$51,000,000, 5.400%- 6.000%, 02/12/12-08/18/16, total market value $409,224,000) $ 401,200 $ 401,200 -------------- Total Repurchase Agreement (Cost $401,200) ($ Thousands) 401,200 -------------- Total Investments -- 138.3% (Cost $9,063,205) ($ Thousands) $ 9,138,247 ============== WRITTEN SWAPTIONS -- (0.1)% U.S. Swaption Call, Barclays (52,000) (2,531) U.S. Swaption Call, Merrill Lynch (44,000) (2,411) U.S. Swaption Put, Barclays (42,000) (1,855) -------------- Total Written Swaptions (Premiums Received $(3,050)) ($ Thousands) (6,797) -------------- WRITTEN OPTIONS -- 0.0% June 2008 90 Day Euro Call, Expires 06/19/08, Strike Price: $95.875* (216) (277) June 2008 90 Day Euro Put, Expires 06/19/08, Strike Price: $95.875* (216) (67) March 2008 90 Day Euro Call, Expires 03/17/08, Strike Price: $95.5* (396) (391) March 2008 90 Day Euro Call, Expires 03/17/08, Strike Price: $96* (449) (151) March 2008 90 Day Euro Call, Expires 03/18/08, Strike Price: $95.38* (218) (266) March 2008 90 Day Euro Put, Expires 03/17/08, Strike Price: $95.38* (253) (24) March 2008 U.S. Ten Year Treasury Call, Expires 02/22/08, Strike Price: $112* (207) (453) March 2008 U.S. Ten Year Treasury Call, Expires 02/22/08, Strike Price: $121* (177) (39) March 2008 U.S. Ten Year Treasury Put, Expires 02/22/08, Strike Price: $109.5* (454) (142) - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 147 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Market Value Description Contracts ($ Thousands) - -------------------------------------------------------------------------------- March 2008 U.S. Ten Year Treasury Put, Expires 02/22/08, Strike Price: $113* (263) $ (197) March 2008 U.S. Ten Year Treasury Put, Expires 02/22/08, Strike Price: $114* (177) (174) November 2007 90 Day Euro Put, Expires 03/20/08, Strike Price: $95.5* (459) (77) November 2007 U.S. Ten Year Treasury Put, Expires 02/22/08, Strike Price: $107* (326) (31) -------------- Total Written Options (Premiums Received $(2,389)) ($ Thousands) $ (2,289) -------------- A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- 90-Day Euro$ 343 Dec-2007 $ (62) 90-Day Euro$ 460 Sep-2008 607 90-Day Euro$ (450) Sep-2009 (676) 90-Day Euro$ 861 Jun-2008 2,762 90-Day Euro$ 2,876 Mar-2008 5,282 3-Month Euribor 130 Mar-2008 (53) 3-Month Euribor 130 Jun-2008 (34) Euro-Bond 528 Dec-2007 946 Fed Fund 30 day (61) Apr-2008 (155) Fed Fund 30 day (55) Mar-2008 (122) Fed Fund 30 day (60) May-2008 (192) U.S. 2 Year Treasury Note 504 Mar-2008 (48) U.S. 5 Year Treasury Note 2,494 Mar-2008 300 U.S. 10 Year Treasury Note (1,153) Dec-2007 (3,702) U.S. 10 Year Treasury Note (1,322) Mar-2008 (81) U.S. Long Treasury Bond 7 Dec-2007 42 U.S. Long Treasury Bond 62 Mar-2008 (26) ------------- $ 4,788 ============= A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY TO CURRENCY TO APPRECIATION MATURITY DELIVER RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 2/12/08 EUR 25,929 USD 36,973 $ (1,126) 2/12/08 GBP 9,109 USD 18,483 (197) 2/12/08 USD 20,510 JPY 2,316,816 568 -------------- $ (755) ============== A summary of outstanding swap agreements held by the Fund at November 30, 2007 is as follows: - -------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund delivers monthly payment of 0.1100% (1.330% per annum) times the notional amount of the ABX.HE.BBB 06-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 05/25/46 3,799 $ (1) Fund delivers monthly payment of 0.0270% (0.320% per annum) times the notional amount of the ABX.HE.AA 06-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 07/25/45 12,000 758 Fund delivers monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 05/25/46 3,900 446 Fund delivers monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund receives the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 05/25/46 1,970 384 Fund receives monthly payment of 0.0090% (0.110% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Deutsche Bank) 05/25/46 4,100 (720) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 08/25/37 6,505 (1,468) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 2,650 (658) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Barclays) 08/25/37 800 (232) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 1,300 (444) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/38 1,300 (385) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,300 (362) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,975 5 Fund receives monthly payment of 0.0080% (0.090% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Barclays) 08/25/37 4,680 (243) - -------------------------------------------------------------------------------- 148 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.0080% (0.090% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 3,545 $ (173) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 3,900 (653) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,970 (453) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,975 (94) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,975 (215) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 2,440 (848) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 7,080 (2,675) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,300 (504) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,300 (519) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,950 (854) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,355 (675) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,975 (100) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 4,550 (1,656) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,700 (908) - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,900 $ (994) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 4,720 (2,308) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 7,805 (1,001) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 9,400 (2,023) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Merrill Lynch) 01/25/38 2,350 (496) Fund receives monthly payment of 0.4170% (5.000% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 2,210 (306) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 2,600 (1,033) Fund pays quarterly payment of 0.1600% (0.640% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Goldman Sachs) 12/20/12 5,000 103 Fund pays quarterly payment of 0.2750% (1.100% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the Lehman Brothers) 12/20/12 5,000 187 Fund pays quarterly payment of 0.2750% (1.100% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: HSBC) 12/20/17 4,500 240 Fund pays quarterly payment of 0.0440% (0.175% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/17 3,200 149 Fund pays quarterly payment of 0.0320% (0.128% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/17 3,200 62 Fund pays quarterly payment of 0.4500% (1.800% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 09/20/12 3,600 381 Fund pays quarterly payment of 0.3500% (1.400% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 09/20/12 600 66 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 149 SCHEDULE OF INVESTMENTS (Unaudited) Core Fixed Income Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0730% (0.290% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/14 13,200 $ 638 Fund pays quarterly payment of 0.4890% (1.955% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,600 217 Fund pays quarterly payment of 0.2430% (0.970% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 3,050 415 Fund pays quarterly payment of 1.769% (7.075% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 2,000 160 Fund pays quarterly payment of 0.2280% (0.913% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,375 174 Fund pays quarterly payment of 0.1740% (0.695% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 3,300 279 Fund pays quarterly payment of 0.2230% (0.890% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,970 251 Fund pays quarterly payment of 0.0560% (0.225% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 3,275 575 Fund pays quarterly payment of 0.0780% (0.313% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 3,100 639 Fund pays quarterly payment of 0.0470% (0.188% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 4,000 46 Fund pays quarterly payment of 0.0470% (0.188% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 300 7 Fund pays quarterly payment of 0.0470% (0.188% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 8,725 200 Fund pays quarterly payment of 0.1160% (0.463% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 2,500 265 Fund pays quarterly payment of 1.063% (4.250% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 4,000 412 Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 700 187 - -------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 4,000 $ 1,066 Fund pays quarterly payment of 0.9380% (3.750% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 4,000 1,043 Fund pays quarterly payment of 0.0720% (0.288% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,125 171 Fund pays quarterly payment of 0.1770% (0.708% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,400 118 Fund pays quarterly payment of 0.0570% (0.228% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 8,500 261 Fund receives quarterly payment of 0.0675% (0.270% per annum) times the notional amount of ConocoPhillips, 4.750%, 10/15/12. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Morgan Stanley) 09/20/12 1,620 (3) -------------- $ (13,099) ============== - -------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS - -------------------------------------------------------------------------------------------------- Pay fixed rate of 4.524% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/24/17 6,830 $ 584 Pay fixed rate of 4.650% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/18/17 12,000 895 Pay fixed rate of 5.000% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/18/17 3,060 125 Pay fixed rate of 5.030% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/16/17 3,060 117 Pay fixed rate of 5.050% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/16/17 3,060 130 Pay fixed rate of 5.135% and receive floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 11/30/09 4,050 93 Receive fixed rate of 4.148% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 11/23/09 10,500 43 Receive fixed rate of 4.390% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: JPMorgan Chase) 11/15/09 10,420 93 Receive fixed rate of 4.400% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 05/31/12 13,126 154 Receive fixed rate of 4.813% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 11/15/09 5,850 100 Receive fixed rate of 5.043% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 11/30/09 4,060 86 Receive fixed rate of 7.160% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 05/25/22 6,000 (5) Receive fixed rate of 7.880% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 06/04/22 4,170 91 Receive fixed rate of 7.910% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 06/12/22 4,000 19 Receive fixed rate of 4.858% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Citigroup) 11/15/09 5,820 171 -------------- $ 2,696 ============== - -------------------------------------------------------------------------------- 150 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $6,609,132 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) The rate reported is the effective yield at time of purchase. (B) Security, or portion thereof, has been pledged as collateral on open futures contracts. (C) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (D) Treasury Inflation Index Notes (E) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (F) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (H) Securities considered illiquid. The total value of such securities as of November 30, 2007 was $983 ($ Thousands) and represented 0.02% of Net Assets. (I) Tri-Party Repurchase Agreement (J) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $1,182,434 ($ Thousands). (K) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of November 30, 2007 was $1,312,034 ($ Thousands). (L) The note accrues 9.65% annual coupon for any day that the 3-year swap rate exceeds the 1-year swap rate by 22 or more basis points. (M) The note accrues 12.50% annual coupon for any day that the 5-year swap rate exceeds the 2-year swap rate by 30 or more basis points. ARM -- Adjustable Rate Mortgage CDO -- Collateralized Debt Obligation Cl -- Class CMO -- Collateralized Mortgage Obligation EUR -- Euro FHLB -- Federal Home Loan Bank FHLMC -- Federal Home Loan Mortgage Corporation FICO -- Fair Isaac Corporation FNMA -- Federal National Mortgage Association GBP -- British Pound Sterling GNMA -- Government National Mortgage Association IO -- Interest Only - Face Amount Represents Notional Amount JPY -- Japanese Yen LLC -- Limited Liability Company L.P. -- Limited Partnership Ltd. -- Limited MTN -- Medium Term Note PLC -- Public Limited Company RB -- Revenue Bond SBA -- Small Business Administration Ser -- Series STRIPS -- Separately Traded Registered Interest and Principal Securities TBA -- To Be Announced TIPS -- Treasury Inflated Protection Securities USD -- U.S. Dollar The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 151 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Consumer Discretionary 20.8% Financials 16.7% Short-Term Investments 15.4% Materials 7.9% Telecommunication Services 7.5% Industrials 7.1% Energy 6.7% Asset-Backed Securities 5.1% Health Care 3.5% Information Technology 3.2% Utilities 3.1% Consumer Staples 2.6% Common Stock 0.2% Preferred Stock 0.1% Convertible Bonds 0.1% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CORPORATE OBLIGATIONS -- 78.6% CONSUMER DISCRETIONARY -- 23.2% Adelphia Communications (escrow security) (C) 10.250%, 06/15/11 $ 125 $ 21 7.875%, 05/01/09 75 12 7.750%, 01/15/09 250 39 Adelphia Communications, Ser B PIK (escrow security) (C) 9.500%, 02/15/04 25 4 American Casino & Entertainment 7.850%, 02/01/12 25 26 American Greetings 7.375%, 06/01/16 700 672 Amscan Holdings 8.750%, 05/01/14 1,575 1,449 Aramark Services 8.500%, 02/01/15 2,795 2,805 8.411%, 02/22/08 (D) 325 315 Arvinmeritor (F) 8.750%, 03/01/12 1,900 1,795 Asbury Auto Group 7.625%, 03/15/17 125 113 Ashtead Holdings PLC (A) 8.625%, 08/01/15 195 -- Autonation (D) 7.243%, 01/15/08 680 639 Avis Budget Car Rental 7.750%, 05/15/16 725 684 7.369%, 02/15/08 (D) 615 569 Bausch & Lomb Optical Supplies (A) 9.875%, 11/01/15 725 734 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Beazer Homes USA 8.625%, 05/15/11 $ 275 $ 209 6.875%, 07/15/15 (F) 725 526 6.500%, 11/15/13 (F) 1,300 955 Blockbuster (F) 9.000%, 09/01/12 1,075 914 Bonten Media Acquisition PIK (A) 9.000%, 06/01/15 1,400 1,239 Boyd Gaming 7.125%, 02/01/16 2,650 2,524 6.750%, 04/15/14 1,275 1,214 Broder Brothers, Ser B 11.250%, 10/15/10 1,200 960 Brookstone (F) 12.000%, 10/15/12 595 565 Brown Shoe 8.750%, 05/01/12 1,025 1,045 Burlington Coat (F) 11.125%, 04/15/14 3,925 3,474 CCH I Holdings LLC (F) 11.750%, 05/15/14 (B) 150 102 9.920%, 04/01/14 1,600 1,020 CCH I LLC (F) 11.000%, 10/01/15 10,732 9,337 11.000%, 10/01/15 350 304 CCH II LLC 10.250%, 09/15/10 2,345 2,316 CCH II LLC, Ser B 10.250%, 09/15/10 25 25 CCO Holdings LLC 8.750%, 11/15/13 2,820 2,757 CSC Holdings 7.875%, 12/15/07 175 175 7.625%, 07/15/18 510 464 7.250%, 07/15/08 225 226 CSC Holdings, Ser B 8.125%, 08/15/09 275 278 Cablevision Systems, Ser B 9.644%, 04/03/08 (D) 1,238 1,257 8.000%, 04/15/12 2,315 2,205 Caesars Entertainment 8.875%, 09/15/08 400 408 7.875%, 03/15/10 75 77 Canwest Media 8.000%, 09/15/12 775 719 Carrols 9.000%, 01/15/13 1,375 1,268 Charter Communications Holdings LLC (A) 8.000%, 04/30/12 175 171 - -------------------------------------------------------------------------------- 152 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Choctaw Resort Development Entity (A) 7.250%, 11/15/19 $ 962 $ 919 Cinemark (B) 7.960%, 03/15/14 425 395 Claire's Stores (A) (F) 10.500%, 06/01/17 7,175 4,556 9.250%, 06/01/15 900 684 Claire's Stores PIK (A) (F) 9.625%, 06/01/15 2,745 2,004 Clear Channel Communications 4.625%, 01/15/08 2,300 2,296 Community Health System 8.875%, 07/15/15 250 253 Cooper Standard Auto 8.375%, 12/15/14 1,400 1,162 Couche-Tard US 7.500%, 12/15/13 2,283 2,260 Dana (C) (F) 7.000%, 03/15/28 200 146 7.000%, 03/01/29 1,000 770 6.500%, 03/15/08 100 73 6.500%, 03/01/09 275 220 Delphi 7.125%, 05/01/29 (C) 675 462 6.550%, 06/15/06 450 304 6.500%, 05/01/09 (C) (F) 2,675 1,859 Dex Media 8.797%, 11/15/13 (B) 1,625 1,491 8.788%, 11/15/13 (B) 2,635 2,418 8.000%, 11/15/13 800 764 Dex Media West, Ser B 9.875%, 08/15/13 970 1,008 9.875%, 08/15/13 3,790 3,937 8.500%, 08/15/10 850 865 DirecTV Holdings 8.375%, 03/15/13 2,306 2,392 6.375%, 06/15/15 5,640 5,457 Easton-Bell Sports 8.375%, 10/01/12 2,040 1,877 Echostar DBS 7.125%, 02/01/16 2,690 2,801 7.000%, 10/01/13 1,770 1,832 6.625%, 10/01/14 1,645 1,666 5.750%, 10/01/08 1,825 1,823 El Dorado Casino Shreveport PIK (F) 1.973%, 08/01/12 1,102 1,102 Eye Care Centers of America 10.750%, 02/15/15 600 639 Federal-Mogul 7.750%, 07/01/06 (C) (F) 975 799 7.700%, 01/15/09 (F) 200 164 7.375%, 01/15/06 (C) 275 226 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Federal-Mogul MTN A (C) 8.370%, 11/15/01 $ 300 $ 246 Festival Fun Park LLC 10.875%, 04/15/14 2,324 2,341 Fontainebleau Las Vegas (A) (F) 10.250%, 06/15/15 5,825 5,155 Ford Motor 8.900%, 01/15/32 850 663 8.875%, 01/15/22 50 41 7.450%, 07/16/31 976 737 6.500%, 08/01/18 (F) 2,245 1,687 General Motors (F) 8.375%, 07/15/33 10,649 8,839 8.250%, 07/15/23 4,067 3,335 7.700%, 04/15/16 1,851 1,583 7.125%, 07/15/13 2,025 1,762 General Nutrition Center PIK 10.009%, 03/15/14 550 522 Goodyear Tire & Rubber 11.000%, 03/01/11 840 895 9.000%, 07/01/15 23 24 8.625%, 12/01/11 (F) 977 1,021 7.857%, 08/15/11 800 816 Great Canadian Gaming (A) 7.250%, 02/15/15 275 270 Group 1 Automotive 8.250%, 08/15/13 475 468 HCA 9.250%, 11/15/16 540 559 9.125%, 11/15/14 802 820 HCA PIK 9.625%, 11/15/16 6,755 7,025 Hanesbrands, Ser B (D) 8.784%, 12/15/07 3,235 3,186 Harrah's Operating 8.000%, 02/01/11 625 622 5.500%, 07/01/10 100 95 Herbst Gaming 8.125%, 06/01/12 975 682 7.000%, 11/15/14 1,375 907 Hertz 10.500%, 01/01/16 1,350 1,397 8.875%, 01/01/14 1,525 1,525 8.875%, 01/01/14 1,372 1,372 Idearc 8.000%, 11/15/16 2,630 2,459 Indianapolis Downs (A) 11.000%, 11/01/12 900 877 Inn of the Mountain Gods 12.000%, 11/15/10 225 235 Isle of Capri Casinos 7.000%, 03/01/14 3,275 2,800 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 153 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Jarden 7.500%, 05/01/17 $ 3,605 $ 3,244 Jo-Ann Stores 7.500%, 03/01/12 350 308 LBI Media (B) 13.455%, 10/15/13 625 578 LIN Television 6.500%, 05/15/13 2,725 2,575 LIN Televison, Ser B 6.500%, 05/15/13 1,250 1,181 Lamar Media 7.250%, 01/01/13 500 494 6.625%, 08/15/15 2,700 2,565 6.625%, 08/15/15 (A) 600 570 Lamar Media, Ser B 6.625%, 08/15/15 350 332 Leslie's Poolmart 7.750%, 02/01/13 525 496 MGM Mirage 8.375%, 02/01/11 1,275 1,304 7.500%, 06/01/16 4,480 4,402 6.875%, 04/01/16 (F) 2,020 1,901 6.750%, 04/01/13 1,600 1,544 5.875%, 02/27/14 2,670 2,420 Majestic Star Casino LLC 9.500%, 10/15/10 2,275 2,190 Majestic Star II LLC 9.750%, 01/15/11 875 691 Mandalay Resort Group 9.375%, 02/15/10 525 542 MediMedia USA (A) 11.375%, 11/15/14 725 747 MediaNews Group 6.875%, 10/01/13 100 65 6.375%, 04/01/14 150 96 Mediacom Broadband LLC 8.500%, 10/15/15 3,400 3,026 Mediacom LLC 9.500%, 01/15/13 2,970 2,762 Michaels Stores 11.375%, 11/01/16 2,300 2,191 10.000%, 11/01/14 (F) 450 443 Mohegan Tribal Gaming 7.125%, 08/15/14 75 72 6.875%, 02/15/15 1,300 1,202 6.125%, 02/15/13 250 238 NPC International 9.500%, 05/01/14 175 156 Neff (F) 10.000%, 06/01/15 1,600 960 Neiman Marcus Group (F) 10.375%, 10/15/15 561 596 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Neiman Marcus Group PIK 9.000%, 10/15/15 $ 1,540 $ 1,602 Nexstar Finance 7.000%, 01/15/14 1,800 1,669 Nexstar Holdings LLC (B) 5.081%, 04/01/13 585 579 Outback Steakhouse (A) 10.000%, 06/15/15 3,275 2,612 Penhall International (A) 12.000%, 08/01/14 750 690 Penn National Gaming 6.875%, 12/01/11 925 923 6.750%, 03/01/15 2,065 2,091 Penske Auto Group (A) 7.750%, 12/15/16 1,500 1,425 Perry Ellis International, Ser B 8.875%, 09/15/13 1,544 1,498 Petro Stopping Centers 9.000%, 02/15/12 225 234 Phillips-Van Heusen 8.125%, 05/01/13 375 382 7.250%, 02/15/11 75 75 Pokagon Gaming Authority (A) 10.375%, 06/15/14 575 615 Quebecor Media 7.750%, 03/15/16 1,025 956 7.750%, 03/15/16 (A) 5,190 4,840 RH Donnelley 6.875%, 01/15/13 350 319 RH Donnelley, Ser A-1 6.875%, 01/15/13 1,925 1,757 RH Donnelley, Ser A-2 6.875%, 01/15/13 1,675 1,528 RH Donnelley, Ser A-3 8.875%, 01/15/16 1,275 1,205 RH Donnellley (A) 8.875%, 10/15/17 6,750 6,362 RJ Tower (C) (F) 12.000%, 06/01/13 425 9 RSC Equipment Rental (F) 9.500%, 12/01/14 3,340 3,098 ReAble Therapeutics Financial (A) 10.875%, 11/15/14 2,050 1,973 Rent-A-Center, Ser B 7.500%, 05/01/10 2,575 2,446 SGS International 12.000%, 12/15/13 1,650 1,633 Sally Holdings LLC (F) 10.500%, 11/15/16 405 403 9.250%, 11/15/14 2,210 2,199 Sbarro (F) 10.375%, 02/01/15 200 174 - -------------------------------------------------------------------------------- 154 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Sealy Mattress 8.250%, 06/15/14 $ 3,525 $ 3,463 Service 7.375%, 10/01/14 (F) 2,038 2,018 7.000%, 06/15/17 1,225 1,155 6.750%, 04/01/15 1,765 1,712 Service International 7.625%, 10/01/18 827 821 6.750%, 04/01/16 1,725 1,630 Shingle Springs Tribal Group (A) 9.375%, 06/15/15 675 661 Simmons (F) 10.694%, 12/15/14 (B) 4,950 3,910 7.875%, 01/15/14 1,200 1,122 Sinclair Broadcast Group (A) (B) 4.875%, 07/15/18 400 372 Sinclair Television Group 8.000%, 03/15/12 15 15 Six Flags (F) 9.625%, 06/01/14 1,225 888 Sonic Automotive, Ser B 8.625%, 08/15/13 2,580 2,551 Stanadyne Holdings (B) 9.570%, 02/15/15 1,500 1,170 Stanadyne, Ser 1 10.000%, 08/15/14 475 463 Standard Pacific 7.750%, 03/15/13 (F) 325 214 7.000%, 08/15/15 50 -- Station Casinos 6.875%, 03/01/16 3,230 2,572 6.625%, 03/15/18 325 246 6.625%, 03/15/18 3,450 2,613 Steinway Musical Instruments (A) 7.000%, 03/01/14 5,310 4,832 Stewart Enterprises 6.250%, 02/15/13 890 845 Sun Media 7.625%, 02/15/13 2,040 1,958 TRW Automotive (A) 7.000%, 03/15/14 3,025 2,828 TRW Automotive (A) (F) 7.250%, 03/15/17 5,230 4,851 Tenneco (F) 8.625%, 11/15/14 4,304 4,288 Town Sports International (B) 8.490%, 02/01/14 1,454 1,367 Travelport LLC 11.875%, 09/01/16 (F) 3,685 3,906 10.246%, 09/01/14 (D) 2,044 2,003 9.875%, 09/01/14 415 419 United Components 9.375%, 06/15/13 805 793 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- United Rentals North America 7.000%, 02/15/14 $ 450 $ 400 6.500%, 02/15/12 (F) 2,340 2,229 Universal City Florida (D) 9.661%, 02/01/08 2,823 2,851 Univision Communications PIK (A) (F) 9.750%, 03/15/15 3,725 3,464 Vail Resorts 6.750%, 02/15/14 3,080 3,011 Vicorp Restaurants 10.500%, 04/15/11 50 29 Videotron 6.875%, 01/15/14 4,120 3,945 Visant Holding 10.548%, 12/01/13 (B) 4,880 4,490 8.750%, 12/01/13 (F) 1,775 1,771 Visteon (F) 8.250%, 08/01/10 1,425 1,268 7.000%, 03/10/14 790 610 WMG Acquisition 7.375%, 04/15/14 3,655 3,066 Wynn Las Vegas LLC 6.625%, 12/01/14 3,014 2,924 -------------- 320,133 -------------- CONSUMER STAPLES -- 2.8% B&G Foods 8.000%, 10/01/11 500 485 Constellation Brands 8.375%, 12/15/14 1,705 1,718 7.250%, 05/15/17 (A) 3,150 2,929 7.250%, 09/01/16 (F) 5,970 5,582 Dean Foods 7.000%, 06/01/16 450 398 Del Laboratories 9.911%, 01/28/08 (D) 450 450 8.000%, 02/01/12 (F) 3,365 3,340 Del Monte 6.750%, 02/15/15 1,760 1,654 Dole Foods 7.250%, 06/15/10 1,275 1,167 Elizabeth Arden 7.750%, 01/15/14 1,425 1,393 Fleming (C) 10.125%, 04/01/08 983 49 9.250%, 06/15/10 188 9 Merisant 9.500%, 07/15/13 2,075 1,650 Merisant Worldwide (B) 8.171%, 05/15/14 1,100 457 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 155 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Michael Foods 8.000%, 11/15/13 $ 3,150 $ 3,118 NBTY 7.125%, 10/01/15 2,462 2,413 Natural Beef Pack 10.500%, 08/01/11 1,213 1,174 Pantry 7.750%, 02/15/14 1,875 1,734 Rite Aid 9.500%, 06/15/17 (A) 4,015 3,453 9.375%, 12/15/15 (A) 1,475 1,276 9.250%, 06/01/13 1,000 910 8.625%, 03/01/15 1,000 845 7.700%, 02/15/27 150 107 7.500%, 01/15/15 25 23 6.875%, 08/15/13 100 78 6.875%, 12/15/28 350 242 Spectrum Brands (F) 7.375%, 02/01/15 2,660 1,928 SuperValu 7.500%, 11/15/14 800 826 -------------- 39,408 -------------- ENERGY -- 7.5% Allis-Chalmers Energy 9.000%, 01/15/14 5,063 5,063 Atlas Pipeline Partners 8.125%, 12/15/15 350 343 Aventine Renewable Energy 10.000%, 04/01/17 700 627 Baytex Energy 9.625%, 07/15/10 525 542 Brigham Exploration 9.625%, 05/01/14 1,000 933 Chaparral Energy 8.875%, 02/01/17 (A) 625 556 8.500%, 12/01/15 2,238 1,981 Chesapeake Energy 7.750%, 01/15/15 2,200 2,244 7.500%, 06/15/14 719 735 7.000%, 08/15/14 1,851 1,851 6.875%, 01/15/16 2,773 2,724 6.500%, 08/15/17 745 715 Cimarex Energy 7.125%, 05/01/17 2,250 2,205 Colorado Interstate Gas 6.800%, 11/15/15 125 132 5.950%, 03/15/15 250 251 Compagnie Generale de Geophysique 7.750%, 05/15/17 250 251 7.500%, 05/15/15 1,225 1,234 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Compton Pet Finance 7.625%, 12/01/13 $ 350 $ 327 Comstock Resources 6.875%, 03/01/12 50 47 Connacher Oil & Gas (A) 10.250%, 12/15/15 1,375 1,375 Denbury Resources 7.500%, 04/01/13 3,465 3,526 7.500%, 12/15/15 2,415 2,445 Dynegy Holdings 8.375%, 05/01/16 675 649 7.750%, 06/01/19 400 360 7.750%, 06/01/19 (A) 6,550 5,895 7.500%, 06/01/15 550 506 7.500%, 06/01/15 (A) 1,445 1,329 El Paso 7.420%, 02/15/37 900 855 7.000%, 06/15/17 (F) 1,675 1,679 El Paso MTN 8.050%, 10/15/30 150 154 7.800%, 08/01/31 1,450 1,449 7.750%, 01/15/32 (F) 1,750 1,748 El Paso Performance-Linked Trust (A) 7.750%, 07/15/11 450 471 Encore Acquisition 7.250%, 12/01/17 850 810 6.000%, 07/15/15 600 540 Energy Partners 10.368%, 01/15/08 (D) 425 412 9.750%, 04/15/14 1,425 1,361 Forest Oil 8.000%, 06/15/08 180 181 8.000%, 12/15/11 1,825 1,889 7.250%, 06/15/19 (A) 525 520 Frigstad Discoverer (A) 11.500%, 02/21/12 900 961 Frontier Oil 6.625%, 10/01/11 825 819 Hilcorp Energy (A) 9.000%, 06/01/16 750 765 7.750%, 11/01/15 (F) 4,275 4,136 Holly Energy Partners LP 6.250%, 03/01/15 1,200 1,107 Inergy LP 6.875%, 12/15/14 300 290 Key Energy Services (A) 8.375%, 12/01/14 650 652 MarkWest Energy, Ser B 8.500%, 07/15/16 2,325 2,331 6.875%, 11/01/14 1,500 1,414 McMoRan Exploration 11.875%, 11/15/14 150 150 - -------------------------------------------------------------------------------- 156 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Newfield Exploration 6.625%, 04/15/16 $ 1,730 $ 1,695 Northwest Pipeline 7.000%, 06/15/16 225 244 5.950%, 04/15/17 275 281 OPTI Canada (A) 8.250%, 12/15/14 2,350 2,315 7.875%, 12/15/14 910 887 PHI 7.125%, 04/15/13 125 121 Pacific Energy Partner 7.125%, 06/15/14 200 209 6.250%, 09/15/15 100 101 Parker Drilling 9.625%, 10/01/13 639 681 Peabody Energy 7.375%, 11/01/16 1,140 1,168 Peabody Energy, Ser B 6.875%, 03/15/13 2,500 2,506 PetroProd 10.850%, 05/24/13 900 891 Petrohawk Energy 9.125%, 07/15/13 2,520 2,646 Plains Exploration 7.750%, 06/15/15 875 866 7.000%, 03/15/17 850 808 Pride International 7.375%, 07/15/14 1,391 1,426 Quicksilver Resources 7.125%, 04/01/16 1,225 1,182 Range Resources 6.375%, 03/15/15 350 341 SESI LLC 6.875%, 06/01/14 950 917 Sabine Pass LNG L.P. 7.500%, 11/30/16 1,920 1,814 7.250%, 11/30/13 1,550 1,492 Southern Natural Gas 7.350%, 02/15/31 375 403 Swift Energy 7.625%, 07/15/11 3,100 3,100 Tesoro 6.625%, 11/01/15 1,655 1,638 6.500%, 06/01/17 (A) 1,175 1,160 Transcontinental Gas Pipe 6.400%, 04/15/16 150 157 United Refining 10.500%, 08/15/12 850 867 Veneco 8.750%, 12/15/11 2,525 2,506 VeraSun Energy (A) 9.375%, 06/01/17 475 390 Whiting Petroleum 7.000%, 02/01/14 1,030 999 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Williams 8.125%, 03/15/12 (F) $ 505 $ 550 7.750%, 06/15/31 1,045 1,155 6.375%, 10/01/10 (A) 725 735 Williams Partners LP 7.250%, 02/01/17 3,285 3,367 -------------- 103,158 -------------- FINANCIALS -- 8.9% AAC Group Holding (B) (F) 2.532%, 10/01/12 1,080 929 AAC Group Holding PIK 12.750%, 10/01/12 825 775 ACE Cash Express (A) 10.250%, 10/01/14 675 670 ALH Finance LLC 8.500%, 01/15/13 3,375 3,172 Alamosa Delaware 8.500%, 01/31/12 1,665 1,724 Algoma Acquisition (A) 9.875%, 06/15/15 750 600 Alliant Holdings (A) 11.000%, 05/01/15 1,925 1,829 American Real Estate (A) 7.125%, 02/15/13 4,300 4,020 Armstrong World (C) (F) 7.450%, 05/15/29 525 3 Ashtead Capital (A) (F) 9.000%, 08/15/16 2,159 1,900 Biomet (A) 11.625%, 10/15/17 100 99 10.000%, 10/15/17 375 379 Biomet PIK (A) 10.375%, 10/15/17 3,705 3,686 Cardtronics 9.250%, 08/15/13 150 144 9.250%, 08/15/13 (A) 350 336 Deluxe 7.375%, 06/01/15 200 199 FMC Finance III (A) 6.875%, 07/15/17 1,910 1,872 FTI Consulting 7.750%, 10/01/16 175 182 7.625%, 06/15/13 425 434 Felcor Lodging LP+ 8.500%, 06/01/11 245 258 7.260%, 04/30/08 (D) 200 198 Ford Motor Credit LLC 9.750%, 09/15/10 (F) 812 789 9.693%, 01/17/08 (D) 3,340 3,307 8.000%, 12/15/16 5,375 4,703 7.993%, 01/13/08 (D) 275 240 7.800%, 06/01/12 4,500 4,011 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 157 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- 7.375%, 10/28/09 $ 600 $ 568 7.375%, 02/01/11 650 593 7.250%, 10/25/11 1,965 1,774 7.000%, 10/01/13 4,562 3,984 6.813%, 01/18/08 (D) 680 639 GMAC LLC 8.000%, 11/01/31 1,418 1,203 7.821%, 12/25/07 (D) 622 510 7.750%, 01/19/10 175 166 7.250%, 03/02/11 925 819 7.000%, 02/01/12 100 87 6.875%, 09/15/11 3,375 2,949 6.875%, 08/28/12 5,355 4,553 6.750%, 12/01/14 7,565 6,223 6.625%, 05/15/12 1,325 1,123 6.000%, 12/15/11 250 212 HUB International Holdings (A) 9.000%, 12/15/14 2,430 2,187 Hawker Beechcraft Acquisition (A) (F) 9.750%, 04/01/17 950 961 Hawker Beechcraft Acquisition PIK (A) 8.875%, 04/01/15 25 25 Hellas II (A) (D) 10.993%, 12/21/07 2,100 2,163 Hexion US Fin/Nova Scotia 9.750%, 11/15/14 2,500 2,687 9.369%, 02/15/08 (D) 750 765 Host Hotels & Resorts LP+ 6.875%, 11/01/14 1,385 1,375 Host Marriott LP+ 7.125%, 11/01/13 735 737 Host Marriott LP, Ser M+ 7.000%, 08/15/12 375 375 Host Marriott LP, Ser O+ 6.375%, 03/15/15 575 562 Host Marriott LP, Ser Q+ 6.750%, 06/01/16 1,905 1,891 Ipayment 9.750%, 05/15/14 1,100 1,051 KAR Holdings (A) 10.000%, 05/01/15 2,500 2,269 9.356%, 05/01/14 (D) 800 728 8.750%, 05/01/14 2,580 2,386 Marlin Water Trust II (A) (C) 6.310%, 07/15/03 4,000 310 NSG Holdings LLC (A) 7.750%, 12/15/25 450 444 Nielsen Finance LLC 12.500%, 08/01/16 (B) 500 346 10.000%, 08/01/14 3,375 3,434 Nuveen Investments (A) 10.500%, 11/15/15 5,660 5,589 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Omega Healthcare Investors+ 7.000%, 01/15/16 $ 825 $ 817 PNA Intermediate Holding PIK (A) 11.869%, 02/15/08 475 437 PXRE Capital Trust I 8.850%, 02/01/27 1,400 1,400 Petroplus Finance 7.000%, 05/01/17 500 456 7.000%, 05/01/17 (A) 3,690 3,395 6.750%, 05/01/14 1,500 1,413 6.750%, 05/01/14 (A) 1,455 1,353 Pinnacle Foods Finance LLC (A) 10.625%, 04/01/17 2,100 1,848 9.250%, 04/01/15 850 769 Realogy (A) 12.375%, 04/15/15 150 98 10.500%, 04/15/14 (F) 1,000 753 Regency Energy Partners 8.375%, 12/15/13 520 543 Residential Capital LLC 7.875%, 06/30/10 200 133 7.125%, 11/21/08 1,625 1,267 Residential Capital LLC (D) (F) 6.224%, 06/09/08 1,525 1,281 Rouse LP+ (A) 6.750%, 05/01/13 700 653 SLM MTN (D) (G) 4.660%, 12/17/07 3,073 3,073 Senior Housing Properties Trust+ 7.875%, 04/15/15 645 674 Snoqualmie Enterprises Authority (A) 9.125%, 02/01/15 1,350 1,299 9.063%, 02/01/08 (D) 275 263 Tenneco (A) 8.125%, 11/15/15 1,045 1,043 Trains HY, Ser 2006-1 (A) 7.548%, 05/01/16 3,041 2,936 Trustreet Properties+ 7.500%, 04/01/15 925 1,018 Universal City Development 11.750%, 04/01/10 1,350 1,397 Ventas Realty L.P.+ 7.125%, 06/01/15 500 498 6.750%, 04/01/17 775 765 6.625%, 10/15/14 375 370 Yankee Acquisition, Ser B 9.750%, 02/15/17 50 46 8.500%, 02/15/15 825 763 -------------- 122,908 -------------- HEALTH CARE -- 3.9% Advanced Mecial Optics 7.500%, 05/01/17 2,875 2,616 - -------------------------------------------------------------------------------- 158 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Bio-Rad Laboratories 7.500%, 08/15/13 $ 175 $ 176 6.125%, 12/15/14 775 748 CRC Health 10.750%, 02/01/16 1,925 2,021 Community Health Systems (A) 8.875%, 07/15/15 3,885 3,924 Cooper 7.125%, 02/15/15 3,190 3,110 Fresenius Medical Capital Trust II 7.875%, 02/01/08 1,076 1,076 Fresenius Medical Capital Trust IV 7.875%, 06/15/11 2,620 2,705 HCA 9.250%, 11/15/16 (A) 11,583 11,988 8.750%, 09/01/10 480 481 6.750%, 07/15/13 555 488 6.500%, 02/15/16 300 250 MedCath Holdings (F) 9.875%, 07/15/12 1,055 1,103 NMH Holdings PIK (A) 12.819%, 12/15/07 650 627 Norcross Safety Products, Ser B 9.875%, 08/15/11 1,225 1,262 Psychiatric Solutions 7.750%, 07/15/15 2,125 2,072 ReAble Therapeutics 11.750%, 11/15/14 575 526 Res-Care 7.750%, 10/15/13 625 619 Select Medical 11.259%, 03/29/08 (D) (F) 675 574 7.625%, 02/01/15 1,100 935 Spheris 11.000%, 12/15/12 1,400 1,316 Sun Healthcare 9.125%, 04/15/15 375 376 Surgical Care Affiliates PIK (A) 8.875%, 07/15/15 900 824 Tenet Healthcare 9.875%, 07/01/14 150 141 9.250%, 02/01/15 (F) 4,965 4,580 US Oncology 10.750%, 08/15/14 3,714 3,640 9.000%, 08/15/12 650 640 United Surgical Partners (F) 8.875%, 05/01/17 1,445 1,409 United Surgical Partners PIK 9.250%, 05/01/17 3,015 2,902 Universal Hospital Services (A) (D) 8.759%, 12/01/07 200 197 Universal Hospital Services PIK (A) 8.500%, 06/01/15 275 275 -------------- 53,601 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- INDUSTRIALS -- 7.9% ACCO Brands 7.625%, 08/15/15 $ 4,315 $ 3,862 ACIH (A) (B) (F) 13.946%, 12/15/12 900 531 AGY Holding (A) 11.000%, 11/15/14 800 772 Actuant (A) 6.875%, 06/15/17 2,000 1,950 Ahern Rentals 9.250%, 08/15/13 1,725 1,475 Ainsworth Lumber 7.250%, 10/01/12 275 162 6.750%, 03/15/14 (F) 900 522 Aleris International 10.000%, 12/15/16 1,775 1,491 Aleris International PIK 9.000%, 12/15/14 75 65 Alliant Techsystems 6.750%, 04/01/16 425 421 Allied Waste North America 7.250%, 03/15/15 345 343 6.125%, 02/15/14 (F) 1,945 1,872 Allied Waste North America, Ser B (F) 7.375%, 04/15/14 650 652 7.125%, 05/15/16 595 594 Allison Transmission (A) (F) 11.000%, 11/01/15 1,200 1,155 Allison Transmission PIK (A) (F) 11.250%, 11/01/15 900 839 Altos Hornos de Mexico, Ser A (C) 11.375%, 04/30/02 525 382 Altos Hornos de Mexico, Ser B (C) 11.875%, 04/30/04 975 709 American Airlines, Ser 01-1 (F) 7.379%, 05/23/16 117 109 American Axle & Manufacturing 7.875%, 03/01/17 1,450 1,341 American Railcar Industries 7.500%, 03/01/14 325 309 Ames True Temper 10.000%, 07/15/12 (F) 1,245 815 9.243%, 01/15/08 (D) 1,220 1,141 Associated Materials (B) (F) 15.343%, 03/01/14 600 390 Baker & Taylor (A) 11.500%, 07/01/13 925 925 Baldor Electric 8.625%, 02/15/17 925 948 Basell (A) (F) 8.375%, 08/15/15 1,325 1,116 Belden 7.000%, 03/15/17 175 172 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 159 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Buffalo Thunder Development Authority (A) (F) 9.375%, 12/15/14 $ 2,100 $ 1,890 Buhrmann US 8.250%, 07/01/14 1,650 1,576 7.875%, 03/01/15 600 566 Chart Industries 9.125%, 10/15/15 325 336 Cornell 10.750%, 07/01/12 475 507 Corrections Corp of America 7.500%, 05/01/11 1,000 1,012 6.750%, 01/31/14 785 788 6.250%, 03/15/13 2,838 2,803 D.R. Horton 5.625%, 09/15/14 1,035 875 DRS Technologies 7.625%, 02/01/18 925 941 6.875%, 11/01/13 300 296 6.625%, 02/01/16 775 763 Delta Air Lines, Ser 2002-1 (C) (F) 8.300%, 12/15/29 850 57 Delta Air Lines, Ser 2002-1, Cl C (F) 7.779%, 01/02/12 769 754 ESCO (A) 9.569%, 12/15/07 (D) 125 124 8.625%, 12/15/13 705 709 Education Management LLC (F) 10.250%, 06/01/16 2,450 2,499 General Cable 7.125%, 04/01/17 410 404 Goodman Global Holdings 7.875%, 12/15/12 4,555 4,669 Goodman Global Holdings, Ser B (D) 8.498%, 12/15/07 1,390 1,388 Graftech Finance 10.250%, 02/15/12 782 805 Gulfmark Offshore 7.750%, 07/15/14 1,304 1,317 Indalex Holding, Ser B 11.500%, 02/01/14 526 480 Interface 9.500%, 02/01/14 275 286 Interline Brands 8.125%, 06/15/14 1,370 1,349 Iron Mountain 8.750%, 07/15/18 (F) 565 590 8.625%, 04/01/13 613 618 7.750%, 01/15/15 2,550 2,563 6.625%, 01/01/16 (F) 5,480 5,172 J.B. Poindexter (F) 8.750%, 03/15/14 400 332 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- K. Hovnanian Enterprises 8.625%, 01/15/17 (F) $ 1,825 $ 1,341 7.500%, 05/15/16 525 378 6.250%, 01/15/16 325 226 L-3 Communications 6.125%, 07/15/13 685 671 5.875%, 01/15/15 (F) 3,377 3,242 L-3 Communications, Ser B 6.375%, 10/15/15 3,456 3,421 Language Line 11.125%, 06/15/12 1,875 1,959 MAAX (F) 9.750%, 06/15/12 300 78 Meritage Homes 7.000%, 05/01/14 500 383 Millar Western Forest 7.750%, 11/15/13 257 191 Mobile Mini 6.875%, 05/01/15 800 724 Mobile Services Group (A) 9.750%, 08/01/14 425 387 Mueller Water Products 7.375%, 06/01/17 1,050 932 NCL 10.625%, 01/15/08 475 477 NTK Holdings (F) 5.653%, 03/01/14 850 502 Nebraska Book 8.625%, 03/15/12 250 243 Noble Group (A) 6.625%, 03/17/15 475 441 Nortek 8.500%, 09/01/14 925 749 Northwest Airlines (C) 10.000%, 02/01/09 175 7 8.875%, 06/01/06 (F) 1,500 58 7.875%, 03/15/08 175 7 7.625%, 11/15/23 1,175 44 Park-Ohio Industries 8.375%, 11/15/14 775 671 Ply Gem 9.000%, 02/15/12 650 517 Propex Fabrics 10.000%, 12/01/12 200 94 Quality Distributors 9.000%, 11/15/10 800 736 Quebecor World Capital (A) 8.750%, 03/15/16 3,760 2,829 RBS Global & Rexnord 11.750%, 08/01/16 (F) 450 450 9.500%, 08/01/14 550 545 8.875%, 09/01/16 2,090 2,027 - -------------------------------------------------------------------------------- 160 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Rainbow National Services LLC (A) 10.375%, 09/01/14 $ 308 $ 333 8.750%, 09/01/12 1,210 1,234 Saint Acquisition (A) (F) 12.500%, 05/15/17 2,150 1,139 Stallion Oilfield Services (A) 9.750%, 02/01/15 3,000 2,760 Sunstate Equipment (A) 10.500%, 04/01/13 730 679 Superior Essex Com & Essex Group 9.000%, 04/15/12 600 581 Terex 8.000%, 11/15/17 6,265 6,296 7.375%, 01/15/14 830 834 Titan International 8.000%, 01/15/12 2,640 2,640 Transdigm 7.750%, 07/15/14 1,350 1,363 Tube City IMS 9.750%, 02/01/15 750 713 UCI Holdco PIK (A) 0.488%, 12/15/07 695 678 United Air Lines (C) 9.125%, 01/15/12 625 5 United Air Lines, Ser 95A1 (C) 9.020%, 04/19/12 739 414 United Air Lines, Ser A 10.670%, 05/01/04 325 2 Vanguard Health Holdings I (B) 8.680%, 10/01/15 225 165 Vanguard Health Holdings II (F) 9.000%, 10/01/14 1,700 1,611 Visant 7.625%, 10/01/12 510 510 Wimar Opco LLC (A) 9.625%, 12/15/14 1,400 977 -------------- 108,796 -------------- INFORMATION TECHNOLOGY -- 3.6% Activant Solution 9.500%, 05/01/16 1,900 1,629 Advanced Micro Devices (F) 7.750%, 11/01/12 1,085 1,001 Amkor Technologies (F) 9.250%, 06/01/16 1,250 1,253 Compucom Systems (A) 12.500%, 10/01/15 950 936 First Data (A) 9.875%, 09/24/15 865 805 Flextronics International 6.250%, 11/15/14 1,400 1,332 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Freescale Semiconductor 10.125%, 12/15/16 (F) $ 5,860 $ 5,025 9.569%, 12/15/07 (D) 250 223 8.875%, 12/15/14 780 713 Freescale Semiconductor PIK 9.125%, 12/15/14 6,130 5,348 Magnachip Semiconductor (F) 6.875%, 12/15/11 425 360 NXP Funding LLC 9.500%, 10/15/15 (F) 4,730 4,304 7.993%, 01/12/08 (A) (D) 1,000 945 7.875%, 10/15/14 3,415 3,278 Open Solutions (A) 9.750%, 02/01/15 4,150 3,860 Sanmina-SCI (F) 8.444%, 12/15/07 (A) (D) 2,000 1,963 8.125%, 03/01/16 1,650 1,460 Seitel 9.750%, 02/15/14 1,800 1,557 Sensata Technologies (F) 8.000%, 05/01/14 2,610 2,427 Smart Modular (D) 10.731%, 01/01/08 760 798 Sungard Data Systems 10.250%, 08/15/15 (F) 9,380 9,661 9.125%, 08/15/13 615 626 Viasystems 10.500%, 01/15/11 375 375 -------------- 49,879 -------------- MATERIALS -- 8.9% AK Steel 7.750%, 06/15/12 1,950 1,945 Abitibi-Consolidated 8.550%, 08/01/10 2,000 1,740 8.375%, 04/01/15 300 225 6.950%, 04/01/08 125 123 Appleton Papers 8.125%, 06/15/11 300 294 Appleton Papers, Ser B 9.750%, 06/15/14 1,075 1,052 Arch Western Finance 6.750%, 07/01/13 9,415 9,109 Ball 6.625%, 03/15/18 1,250 1,234 Bowater 9.500%, 10/15/12 475 380 8.694%, 12/15/07 (D) 2,575 2,266 Bowater Canada Finance 7.950%, 11/15/11 650 509 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 161 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Bway 10.000%, 10/15/10 $ 650 $ 653 CII Carbon (A) 11.125%, 11/15/15 325 320 Cascades 7.250%, 02/15/13 625 587 Catalyst Paper 7.375%, 03/01/14 338 254 Catalyst Paper, Ser D 8.625%, 06/15/11 1,015 842 Claymont Steel 8.875%, 02/15/15 150 137 Crown Americas (F) 7.750%, 11/15/15 1,711 1,745 Crown Cork & Seal 8.000%, 04/15/23 1,525 1,411 Domtar 9.500%, 08/01/16 250 268 7.125%, 08/15/15 1,750 1,724 Equistar Chemical 10.125%, 09/01/08 163 169 FMG Finance (A) 10.625%, 09/01/16 2,995 3,444 10.000%, 09/01/13 350 385 Freeport-McMoRan Copper & Gold 8.394%, 04/01/15 (D) 1,200 1,221 8.375%, 04/01/17 7,000 7,560 Georgia Gulf 7.125%, 12/15/13 300 239 Georgia-Pacific 8.125%, 05/15/11 950 967 8.000%, 01/15/24 (F) 1,225 1,155 7.700%, 06/15/15 (F) 1,575 1,532 7.125%, 01/15/17 (A) (F) 2,195 2,102 7.000%, 01/15/15 (A) 2,675 2,568 Graham Packaging (F) 9.875%, 10/15/14 3,490 3,202 Huntsman International LLC 7.875%, 11/15/14 1,355 1,453 Huntsman LLC 11.625%, 10/15/10 255 270 11.500%, 07/15/12 1,440 1,555 INEOS Group Holdings PLC (A) (F) 8.500%, 02/15/16 3,810 3,429 Innophos 8.875%, 08/15/14 500 498 Innophos Holdings (A) 9.500%, 04/15/12 700 689 Intertape Polymer 8.500%, 08/01/14 450 411 Jefferson Smurfit 8.250%, 10/01/12 2,850 2,821 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Lyondell Chemical 10.500%, 06/01/13 $ 995 $ 1,065 8.000%, 09/15/14 942 1,067 6.875%, 06/15/17 (F) 4,730 5,369 MacDermid (A) (F) 9.500%, 04/15/17 1,050 953 Methanex 6.000%, 08/15/15 175 171 Millennium America 7.625%, 11/15/26 200 178 Momentive Performance (A) 11.500%, 12/01/16 (F) 3,480 3,088 9.750%, 12/01/14 955 886 Mosaic (A) 7.625%, 12/01/16 2,750 2,942 7.375%, 12/01/14 625 659 Mosaic Global Holdings 7.300%, 01/15/28 325 322 Nalco 8.875%, 11/15/13 (F) 1,545 1,607 7.750%, 11/15/11 2,430 2,454 Neenah 9.500%, 01/01/17 575 500 Newark Group 9.750%, 03/15/14 700 672 Noranda Aluminum Acquisition PIK (A) 11.146%, 05/15/08 (F) 1,150 998 8.738%, 05/18/08 3,060 2,632 Novelis 7.250%, 02/15/15 1,150 1,072 Owens-Brockway Glass Container 8.250%, 05/15/13 2,685 2,779 6.750%, 12/01/14 1,500 1,489 P.H. Glatfelter 7.125%, 05/01/16 1,550 1,519 PNA Group 10.750%, 09/01/16 2,975 2,856 Packaging Dynamics (A) 10.000%, 05/01/16 1,995 1,815 PolyOne (F) 8.875%, 05/01/12 3,345 3,383 Reichhold Industries (A) 9.000%, 08/15/14 1,726 1,700 Rock-Tenn 5.625%, 03/15/13 2,200 2,040 Rockwood Specialties Group 7.500%, 11/15/14 1,470 1,455 Solo Cup 8.500%, 02/15/14 1,235 1,068 Solutia 11.250%, 07/15/09 1,050 1,050 Solutia (C) (F) 7.375%, 10/15/27 525 501 - -------------------------------------------------------------------------------- 162 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Steel Dynamics (A) 7.375%, 11/01/12 $ 4,285 $ 4,253 Stone Container 8.375%, 07/01/12 1,655 1,618 8.000%, 03/15/17 (F) 475 456 Terra Capital, Ser B 7.000%, 02/01/17 2,625 2,592 US Steel 6.650%, 06/01/37 150 140 Verso Paper Holdings LLC, Ser B (F) 11.375%, 08/01/16 400 406 Vitro 9.125%, 02/01/17 2,170 2,024 -------------- 122,267 -------------- TELECOMMUNICATION SERVICES -- 8.4% American Cellular, Ser B 10.000%, 08/01/11 86 90 American Tower 7.500%, 05/01/12 100 102 7.125%, 10/15/12 1,781 1,808 Centennial Communications 10.981%, 01/01/08 (D) 100 102 10.125%, 06/15/13 2,275 2,377 8.125%, 02/01/14 1,275 1,259 Cincinnati Bell 7.250%, 07/15/13 2,525 2,525 Citizens Communications 9.250%, 05/15/11 875 947 6.625%, 03/15/15 1,175 1,119 6.250%, 01/15/13 525 507 Consolidated Communication Holdings 9.750%, 04/01/12 3,203 3,283 Cricket Communications I 9.375%, 11/01/14 (A) 4,075 3,790 9.375%, 11/01/14 (F) 4,680 4,352 Digicel (A) 9.250%, 09/01/12 2,400 2,412 Digicel Group (A) (F) 8.875%, 01/15/15 2,805 2,510 Digicel Group PIK (A) (F) 0.050%, 01/15/15 2,700 2,416 Dobson Cellular Systems 9.875%, 11/01/12 1,070 1,169 Dobson Cellular Systems, Ser B 8.375%, 11/01/11 800 858 Dobson Communications 9.493%, 01/15/08 (D) 935 954 8.875%, 10/01/13 (F) 2,490 2,677 Embarq 7.082%, 06/01/16 1,000 1,043 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- GCI 7.250%, 02/15/14 $ 1,450 $ 1,312 Hawaiian Telecom Communications, Ser B (F) 12.500%, 05/01/15 100 103 9.750%, 05/01/13 625 609 Insight Communications (B) 12.250%, 02/15/11 400 417 Insight Midwest 9.750%, 10/01/09 1,500 1,500 Intelsat 9.000%, 06/15/16 600 609 7.625%, 04/15/12 700 585 6.500%, 11/01/13 2,475 1,844 Intelsat Bermuda 11.250%, 06/15/16 (F) 2,065 2,137 9.250%, 06/15/16 1,137 1,158 8.886%, 02/12/08 (D) 905 906 Intelsat Intermediate (B) 7.919%, 02/01/15 3,025 2,480 Intelsat Sub Holding 8.625%, 01/15/15 (F) 1,125 1,133 8.250%, 01/15/13 675 682 Level 3 Financing 9.250%, 11/01/14 (F) 4,470 4,012 9.150%, 02/15/08 (D) 100 85 8.750%, 02/15/17 675 579 Lucent Technologies 6.450%, 03/15/29 100 81 MetroPCS Wireless 9.250%, 11/01/14 950 900 9.250%, 11/01/14 (A) 9,190 8,708 Nordic Telephone Holdings (A) (F) 8.875%, 05/01/16 2,410 2,446 Nortel Networks (A) (D) 9.493%, 01/15/08 150 146 Orascom Telecom Finance (A) 7.875%, 02/08/14 2,275 2,093 PAETEC Holding (A) 9.500%, 07/15/15 3,061 3,038 Primus Telecommunications (F) 8.000%, 01/15/14 1,575 831 Qwest 8.944%, 12/15/07 (D) 1,544 1,586 7.875%, 09/01/11 600 619 7.500%, 10/01/14 1,105 1,119 7.250%, 09/15/25 625 600 7.250%, 10/15/35 1,200 1,110 6.500%, 06/01/17 (A) 575 548 Qwest Capital Funding (F) 7.900%, 08/15/10 1,150 1,159 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 163 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Qwest Communications International 8.369%, 02/11/08 (D) (F) $ 1,236 $ 1,236 7.500%, 02/15/14 400 397 7.250%, 02/15/11 125 124 Qwest Communications International, Ser B (F) 7.500%, 02/15/14 3,650 3,623 Rogers Communications 8.000%, 12/15/12 250 261 6.375%, 03/01/14 175 181 Rogers Wireless 7.250%, 12/15/12 225 246 Rural Cellular 8.621%, 12/04/07 (A) (D) 885 898 8.250%, 03/15/12 2,215 2,298 Securus Technologies (F) 11.000%, 09/01/11 250 213 Syniverse Technologies, Ser B 7.750%, 08/15/13 125 121 Telcordia Technologies (A) (F) 10.000%, 03/15/13 750 570 Triton 8.500%, 06/01/13 900 938 US Unwired, Ser B 10.000%, 06/15/12 400 427 Virgin Media Finance PLC 8.750%, 04/15/14 2,100 2,089 West 11.000%, 10/15/16 (F) 50 50 9.500%, 10/15/14 4,535 4,467 Wind Acquisition Finance (A) 10.750%, 12/01/15 2,425 2,619 Windstream 8.625%, 08/01/16 6,025 6,281 8.125%, 08/01/13 1,010 1,039 7.000%, 03/15/19 2,160 2,047 Windstream Regatta Holdings (A) 11.000%, 12/01/17 1,075 1,086 iPCS (D) 7.036%, 02/01/08 1,180 1,097 iPCS PIK 8.161%, 05/01/14 2,055 1,891 -------------- 115,634 -------------- UTILITIES -- 3.5% AES 9.375%, 09/15/10 750 781 8.875%, 02/15/11 2,555 2,651 8.750%, 05/15/13 (A) 800 832 8.000%, 10/15/17 (A) 3,575 3,557 7.750%, 03/01/14 1,125 1,105 7.750%, 10/15/15 (A) 335 333 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Aquila 14.875%, 07/01/12 $ 450 $ 567 Calpine Generating (C) 14.320%, 04/01/08 326 135 Edison Mission Energy 7.625%, 05/15/27 (A) 950 886 7.200%, 05/15/19 (F) 1,575 1,504 7.000%, 05/15/17 5,310 5,084 Energy Future Holdings (A) 10.875%, 11/01/17 3,545 3,474 Mirant (C) 0.000%, 07/15/07 750 49 Mirant Americas Generation LLC 8.500%, 10/01/21 3,133 2,898 8.300%, 05/01/11 300 299 8.300%, 05/01/11 2,325 2,319 Mirant North America LLC 7.375%, 12/31/13 2,910 2,917 NRG Energy 7.375%, 02/01/16 1,955 1,916 7.375%, 01/15/17 6,260 6,119 7.250%, 02/01/14 605 592 Reliant Energy (F) 7.625%, 06/15/14 1,820 1,756 Sierra Pacific Resources 7.803%, 06/15/12 975 1,023 TXU, Ser P 5.550%, 11/15/14 325 250 TXU, Ser R 6.550%, 11/15/34 150 104 Tenaska Alabama (A) (F) 7.000%, 06/30/21 783 806 Texas Competitive Electric Holdings (A) 10.250%, 11/01/15 4,210 4,052 10.250%, 11/01/15 1,905 1,810 -------------- 47,819 -------------- Total Corporate Obligations (Cost $1,131,925) ($ Thousands) 1,083,603 -------------- LOAN PARTICIPATIONS -- 9.7% FINANCIALS -- 9.7% Advanstar Communications, 2nd Lien 10.320%, 11/30/14 1,250 1,162 Aeroflex 8.875%, 07/29/14 745 700 Affinion Holding 11.660%, 03/01/12 875 822 Affinion Holding PIK 11.660%, 01/24/12 2,000 1,880 0.000%, 03/01/12 600 564 0.000%, 03/01/12 600 564 - -------------------------------------------------------------------------------- 164 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Alliant Insurance Services, Ser B 0.000%, 11/15/14 $ 1,250 $ 1,200 Allison Transmission 0.255%, 08/07/14 2,685 2,492 Allison Transmission, Ser B 8.538%, 08/07/14 2,300 2,135 Alltel Holdings 0.000%, 05/31/15 2,180 2,084 Ameritrade Holding 7.070%, 12/31/12 1,440 1,395 7.070%, 12/31/12 250 242 7.070%, 12/31/12 1,800 1,744 Aramark 7.360%, 12/30/07 1,707 1,621 Aramark LOC (Synthetic) 7.360%, 01/26/14 120 114 Asurion 8.320%, 07/02/14 1,000 964 Asurion, 2nd Lien 12.036%, 07/02/15 1,000 974 0.683%, 07/07/15 433 422 0.682%, 07/07/15 317 308 0.000%, 07/07/15 211 206 0.000%, 07/07/15 289 281 BOC Edwards 10.831%, 05/31/14 200 162 7.081%, 05/31/14 150 136 Boston Generating 7.610%, 12/20/13 389 374 7.610%, 12/21/13 24 23 7.600%, 12/19/13 1,750 1,681 Boston Generating, 1st Lien 12.350%, 12/21/16 129 134 Boston Generating, 2nd Lien 9.600%, 06/21/14 300 300 9.600%, 06/21/14 350 349 9.570%, 06/18/14 500 499 0.000%, 06/21/14 750 749 Boston Generating, Synthetic Letter of Credit 0.476%, 12/21/13 87 83 CCFC (D) 11.320%, 08/26/09 2,219 2,270 Cebridge, 2nd Lien (D) 11.356%, 05/05/14 2,339 2,201 Cengage Learning Acquisitions (I) 0.000%, 06/29/14 850 802 Central Parking 7.570%, 05/22/14 2,261 2,119 0.000%, 05/22/14 25 24 Central Parking Line of Credit (Synthetic) 7.625%, 05/22/14 505 480 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Century Cable Bank, Ser B (D) 10.250%, 06/30/09 $ 3 $ -- Charter, 3rd Lien 7.860%, 09/06/14 1,350 1,248 7.850%, 03/01/14 500 462 Claire's Stores 8.110%, 05/29/13 75 66 8.110%, 05/07/14 3 2 Community Health Systems 7.756%, 07/02/14 1,876 1,795 Community Health Systems (J) 0.000%, 07/13/14 124 -- Cooper Standard (D) 7.875%, 12/23/11 2,716 2,627 Dae Aviation Holdings 0.544%, 07/31/09 769 766 0.144%, 07/31/14 871 858 0.144%, 07/31/14 659 650 Delta, 2nd Lien 8.082%, 04/30/14 225 216 Dresser Rand, 1st Lien 7.860%, 05/04/14 350 327 7.860%, 05/04/14 495 462 Dresser Rand, 2nd Lien 11.110%, 05/04/15 975 925 11.110%, 05/04/15 575 545 Dresser, 2nd Lien 11.110%, 05/04/15 200 190 Entegra PIK 11.340%, 04/04/15 225 213 Entegra PIK, 3rd Lien 11.340%, 04/19/15 1,000 947 11.340%, 04/19/15 450 426 Enterprise GP Holdings 7.494%, 05/05/08 2,500 2,469 First Data 0.584%, 09/24/14 730 691 0.582%, 09/24/14 2,185 2,069 0.580%, 09/24/14 150 142 0.433%, 09/24/14 1,225 1,166 0.367%, 09/24/14 775 734 Ford, 1st Lien 8.360%, 12/12/13 1,100 1,024 Georgia Pacific 7.340%, 02/14/13 350 332 Georgia Pacific, Ser B (D) 7.485%, 02/14/13 424 401 Green Valley Ranch Gaming, 2nd Lien 8.791%, 08/06/14 2,000 1,820 HCA, Ser B 7.614%, 11/15/14 995 941 7.614%, 11/15/14 1,000 946 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 165 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Hertz 7.282%, 12/31/12 $ 648 $ 633 7.110%, 12/31/12 350 342 0.573%, 12/31/12 66 65 0.569%, 12/31/12 198 194 0.000%, 12/31/12 8 8 Hertz Line of Credit (Synthetic) 7.110%, 02/08/12 61 59 7.110%, 02/08/12 76 74 0.691%, 02/08/12 91 89 Iasis Healthcare 10.610%, 06/15/14 2,027 1,906 Idearc, Ser B 7.350%, 11/15/14 3,491 3,335 Infor Global Solutions 11.610%, 03/02/14 1,000 940 0.558%, 03/02/14 507 476 0.558%, 03/02/14 245 231 0.000%, 07/28/12 204 193 0.000%, 07/28/12 46 43 0.000%, 07/28/12 789 745 0.000%, 03/02/14 48 45 Infor Global Solutions, Delayed Draw 0.000%, 07/28/12 411 395 Insight Midwest Holdings LLC 7.360%, 04/06/14 375 361 7.000%, 04/06/14 1,000 963 Intelsat Bermuda 7.206%, 02/02/14 1,825 1,781 Invernell (IM US) Holdings LLC, 2nd Lien (I) 0.000%, 06/26/15 1,000 982 JG Wentworth, 1st Lien 7.600%, 04/04/14 975 909 KAR Holding 7.570%, 04/20/14 1,225 1,153 McKechnie Aerospace 10.340%, 05/11/15 150 144 10.340%, 05/11/15 250 239 10.340%, 05/11/15 300 287 7.340%, 05/11/14 248 237 McKechnie Aerospace, 1st Lien 7.360%, 05/11/14 175 167 7.360%, 05/11/14 200 191 Metroflag, 2nd Lien 14.803%, 07/06/08 325 286 Murray Bank, 2nd Lien (D) 14.438%, 01/31/11 1,471 1,501 13.860%, 01/31/11 451 460 NRG Holdings 0.000%, 05/04/14 2,000 -- New World Gaming 0.000%, 06/18/14 1,300 1,176 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Nielsen Finance LLC 8.190%, 08/09/13 $ 697 $ 662 Nuveen Investments 0.000%, 11/09/14 900 884 Oshkosh Truck 7.450%, 12/06/13 1,687 1,622 PAETEC Holdings 8.065%, 02/28/13 644 625 Penhall 12.824%, 03/28/12 639 639 Pinnacle Foods 8.099%, 04/02/14 998 940 Proquest 8.328%, 02/09/14 800 778 Proquest, 2nd Lien 11.090%, 02/09/16 1,200 1,179 Reader's Digest Association 7.339%, 03/02/14 1,200 1,087 Remax International (Delayed Draw) 7.070%, 12/15/07 767 760 7.070%, 12/15/07 967 958 Remax International (J) 0.000%, 12/15/07 267 2 Resolute Aneth LLC, 2nd Lien 9.510%, 06/27/13 1,500 1,455 Rexnord 12.360%, 02/20/13 2,023 1,968 Reynolds & Reynolds, 3rd Lien 12.860%, 04/01/14 2,300 2,283 12.860%, 04/24/14 500 496 12.698%, 04/01/14 200 198 0.000%, 04/01/14 300 298 0.000%, 04/01/14 900 893 0.000%, 04/24/14 300 298 Sandridge 8.625%, 04/01/15 1,025 1,017 Seminole Tribe of Florida 6.875%, 03/05/14 73 71 Seminole Tribe of Florida, Ser 3 6.875%, 03/05/14 -- -- Seminole Tribe of Florida, Ser B (J) 0.000%, 03/05/14 146 3 Simmons Holdco 10.650%, 02/15/12 200 177 10.650%, 02/15/12 1,100 973 10.650%, 02/15/12 200 177 10.648%, 02/15/12 1,195 1,058 Sorenson Communications, 2nd Lien 12.500%, 02/16/14 1,500 1,504 12.360%, 02/16/14 1,250 1,253 Surgical Care Affiliates 7.570%, 12/29/14 1,500 1,365 - -------------------------------------------------------------------------------- 166 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- TPF Generation Holdings LLC 9.620%, 12/15/14 $ 1,250 $ 1,169 TPF Generation Holdings LLC, 2nd Lien 9.610%, 12/15/14 1,000 935 TXU 0.036%, 10/10/14 1,800 1,761 Texas Competitive Electric 0.000%, 10/10/14 4,615 4,559 Texas Competitive Electric 8.622%, 10/10/14 2,050 2,025 8.396%, 10/27/14 600 587 0.000%, 10/10/14 900 880 Town Sports International 7.500%, 08/27/13 275 253 Tropicana Entertainment 7.850%, 12/31/11 1,485 1,431 UPC Financing Partnership Term J2 7.080%, 04/01/13 1,000 940 UPC Financing Partnership Term K2 7.080%, 12/31/13 1,000 940 Univision Communications 7.605%, 09/15/14 1,879 1,726 7.570%, 03/15/14 940 863 0.000%, 03/15/14 60 5 0.000%, 09/15/14 121 10 0.000%, 09/15/14 365 336 0.000%, 09/29/14 972 893 0.000%, 09/29/14 28 26 0.000%, 09/29/14 10 10 Univision Communications, Delayed Draw 0.000%, 09/29/14 24 22 VWR International, 2nd Lien 7.860%, 06/29/14 2,000 1,884 Venoco 9.125%, 05/07/14 400 388 Verint Systems 8.090%, 05/09/14 2,000 1,930 WideOpenWest Finance LLC 7.830%, 06/18/14 1,000 955 WideOpenWest Finance LLC, 2nd Lien 11.610%, 06/18/15 1,000 890 Wind Acquisition Holdings 12.610%, 12/21/11 773 767 12.609%, 12/12/11 2,332 2,315 0.000%, 12/21/11 300 298 -------------- Total Loan Participations (Cost $139,709) ($ Thousands) 134,751 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- ASSET-BACKED SECURITIES -- 5.7% OTHER ASSET-BACKED SECURITIES -- 5.7% Ares IIIR CLO, Ser 2007-1A, Cl SUB (A) 13.800%, 04/16/21 $ 5,000 $ 4,000 Ares VR CLO, Ser 2006-1A, Cl SUB (A) 10.490%, 02/24/18 3,500 2,450 Ares XI CLO, Ser 2007-11A, Cl SUB (A) 0.000%, 10/11/21 3 2,184 Babson CLO, Ser 2007-2A, Cl INC (A) 0.000%, 07/20/19 2,700 2,181 Battalion CLO, Ser 2007-1, Cl 1A (A) 0.000%, 07/14/22 18 1,487 Capitalsource Advisors, Ser 2006-1A, Cl SUB (A) 0.000%, 08/27/20 2,900 2,233 Carlyle High Yield Partners, Ser 2006-8A, Cl N (E) 0.000%, 05/21/21 3,000 2,025 CIFC Funding, Ser 2006-I (D) 0.000%, 10/20/20 2,000 1,800 CIFC Funding, Ser 2006-II (A) (D) 0.000%, 03/01/21 3,000 2,700 CIFC Funding, Ser 2007-2A, Cl SUB (A) 0.000%, 04/15/21 2,500 2,100 CIFC Funding, Ser 2007-IV 0.000% 3,900 3,900 Connecticut Valley Structured Credit, Ser 2006-3A, Cl NOTE (A) 10.930%, 03/23/23 1,200 792 Copper River, Ser 2006-1A, Cl INC (A) 0.000%, 01/20/21 3,000 2,519 De Meer Middle Market, Ser 2006-1A, Cl INC (A) 0.000%, 10/20/18 1,870 1,477 Denali Capital VII, Ser 2007-1A, Cl INC (A) 10.780%, 01/22/22 4,500 3,960 Duane Street CLO V, Ser 2007-5A, Cl SN (A) 0.000%, 10/14/21 3,500 3,097 Gale Force CLO, Ser 2007-4A, Cl E (D) 11.349%, 02/20/08 4,200 3,784 Gale Force CLO, Ser 2007-4A, Cl INC (D) 4.949%, 08/20/21 60 5,220 Gleneagles CLO, Ser AI (D) 12.940%, 11/01/17 6 5,407 Golden Tree Loan Opportunities III, Ser 2007-3A, Cl SUB (A) 0.000%, 05/01/22 3,100 2,418 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 167 SCHEDULE OF INVESTMENTS (Unaudited) High Yield Bond Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- ING Investment Management I CLO (D) 0.000%, 12/01/17 $ 2 $ 1,400 ING Investment Management II CLO (A) (D) 11.120%, 08/01/20 5 3,600 Lightpoint CLO, Ser 2006-4A, Cl IN (A) 0.000%, 04/15/18 2,000 1,075 Marathon CLO, Ser 2005-2A, Cl INC (A) 11.520%, 12/20/19 1,500 1,265 Marlborough Street CLO, Ser 2007-1A, Cl INC (A) 0.000%, 04/18/19 2,300 1,768 Peritus I CDO (H) 0.000% 3,000 1,050 Peritus I CDO, Ser 2005-1A, Cl C (A) 9.000%, 05/24/15 10,722 8,970 Stanfield Veyron CLO, Ser 2006-1A, Cl SUB 9.060%, 07/15/18 2,000 1,450 Tralee CDO, Ser 2007-1A, Cl SUB (A) 0.000%, 04/16/22 2,500 2,025 -------------- Total Asset-Backed Securities (Cost $83,725) ($ Thousands) 78,337 -------------- COMMON STOCK -- 0.2% Armstrong World Industries 6,214 265 Core-Mark Holding 12,992 348 Delta Air Lines* 19,510 385 Huntsman 7,595 193 Northwest Airlines* 58,347 1,061 Owens Corning (F)* 28,431 626 Portland General Electric 495 13 Time Warner Cable, Cl A (F)* 3,177 83 UAL (F) 1,091 45 -------------- Total Common Stock (Cost $3,439) ($ Thousands) 3,019 -------------- PREFERRED STOCK -- 0.2% Rockwall Investors, 0.000% (A) (D)* 3,000,000 2,250 Rural Cellular PIK, 12.250%* 375 481 -------------- Total Preferred Stock (Cost $3,119) ($ Thousands) 2,731 -------------- CONVERTIBLE BONDS -- 0.1% Adelphia Recovery Trust, Ser ACE-1 (escrow security) 0.000%, 02/15/09 466 -- Flextronics CV to 64.4122 1.000%, 08/01/10 1,190 1,208 Freeport McKennen CV to 1.3605 0.000%, 05/01/10 2 295 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Huntsman CV to 1.7674 5.000%, 02/16/08 $ 1 $ 28 Mirant CV to 14.7167 (C) (F) 2.500%, 06/15/21 1,950 97 -------------- Total Convertible Bonds (Cost $1,573) ($ Thousands) 1,628 -------------- CASH EQUIVALENTS -- 17.2% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++** 66,090,711 66,091 SEI Liquidity Fund L.P., 5.367%++** (G) 170,556,737 170,557 -------------- Total Cash Equivalents (Cost $236,648) ($ Thousands) 236,648 -------------- Total Investments -- 111.7% (Cost $1,600,138) ($ Thousands) $ 1,540,717 ============== Percentages are based on Net Assets of $1,378,783 ($ Thousands). * Non-income producing security. ** Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investment in Affiliated Security (See Note 3). (A) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." (B) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (C) Security in default on interest payments. (D) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The reset date is reported on the Schedule of Investments is the next reset date. (E) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (F) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $162,416 ($ Thousands). (G) This security was purchased with cash collateral held from securities on loan (see Note 9). The total value of such securities as of November 30, 2007 was $173,630 ($ Thousands). (H) Securities considered illiquid. The total value of such securities as of November 30, 2007 was $1,050 ($ Thousands) and represented 0.08% of Net Assets. (I) Unsettled Position -- Interest rate will not be known until settlement. (J) Unfunded bank loan. Cl -- Class CDO -- Collateralized Debt Obligation CLO -- Collateralized Loan Obligation CV -- Convertible Security LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note PCS -- Personal Communications Service PIK -- Payment-in-Kind PLC -- Public Limited Company Ser -- Series Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 168 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 SCHEDULE OF INVESTMENTS (Unaudited) Long Duration Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Mortgage-Backed Securities 43.9% Asset-Backed Securities 30.8% Financials 16.7% U.S. Government Agency Obligations 4.5% Short-Term Investments 2.3% Utilities 0.7% Industrials 0.7% Certificates of Deposit 0.4% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- MORTGAGE-BACKED SECURITIES -- 44.8% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 13.4% FHLMC 6.500%, 08/01/29 $ 676 $ 683 FHLMC TBA 7.000%, 01/01/33 387 407 FHLMC ARM 7.267%, 01/01/33 220 222 7.100%, 12/01/07 469 482 5.838%, 01/01/34 1,034 1,059 5.296%, 08/01/34 1,227 1,253 5.248%, 04/01/34 866 882 5.130%, 04/01/34 826 842 5.086%, 05/01/34 1,274 1,304 4.048%, 08/01/34 818 838 FHLMC CMO, Ser 2006-4, Cl WE 4.500%, 02/25/36 3,050 2,746 FHLMC CMO, Ser 2733, Cl SB 3.823%, 12/15/07 3,350 2,836 FHLMC CMO, Ser 2748, Cl ZT 5.500%, 02/15/24 88 88 FNMA 7.000%, 04/01/34 398 412 FNMA ARM 7.136%, 01/01/33 264 268 6.939%, 07/01/33 372 379 6.875%, 06/01/33 999 1,025 6.442%, 08/01/34 603 614 6.139%, 08/01/36 1,761 1,795 4.524%, 09/01/35 1,895 1,895 4.482%, 05/01/35 2,247 2,286 3.886%, 04/01/35 920 920 FNMA CMO, Ser 2001-48, Cl PD 6.500%, 06/25/20 198 199 FNMA CMO, Ser 2003-122, Cl ZQ 6.000%, 12/25/33 119 125 FNMA CMO, Ser 2004-12, Cl ZX 6.000%, 03/25/34 129 133 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA CMO, Ser 2004-31, Cl MZ 4.250%, 05/25/34 $ 116 $ 89 FNMA CMO, Ser 2004-80, Cl XZ 5.000%, 11/25/34 233 191 GNMA ARM 6.375%, 06/20/32 410 416 GNMA CMO, Ser 2003-112, Cl SG 2.162%, 12/16/07 135 109 GNMA CMO, Ser 2003-86, Cl ZK 5.000%, 10/20/33 1,839 1,744 -------------- 26,242 -------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 31.4% Alliance Bancorp Trust, Ser OA1, Cl A1 (B) 5.029%, 12/25/07 1,787 1,743 American Home Mortgage Investment Trust, Ser 2007-2, Cl 11A1 (B) 5.019%, 12/25/07 2,387 2,299 Bayview Commercial Asset Trust, Ser 2006-1A, Cl M3 (A) (B) 5.209%, 12/25/07 1,222 1,054 Bayview Commercial Asset Trust, Ser 2007-2A, Cl A1 (A) (B) 5.059%, 12/25/07 2,724 2,594 Bayview Commercial Asset Trust, Ser 2007-3, Cl A1 (A) (B) 5.029%, 12/25/07 2,892 2,764 Chase Mortgage Finance, Ser 2007-A2, Cl 2A3 (B) 4.243%, 11/25/33 1,704 1,671 Citigroup Commercial Mortgage Trust, Ser 2007-C6, Cl AM (B) 5.889%, 06/10/17 2,940 2,889 Citigroup Mortgage Loan Trust, Ser 2003-1, Cl WA2 6.500%, 06/25/31 86 87 Citigroup Mortgage Loan Trust, Ser 2004-2, Cl 2A1 (A) 6.500%, 08/25/18 166 167 Countrywide Alternative Loan Trust, Ser 2005-16, Cl A5 (B) 5.069%, 12/25/07 592 576 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 1A2 (B) 6.333%, 12/25/07 1,121 1,080 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 2A1 (B) 6.333%, 12/01/07 662 636 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 3A2 (B) 6.033%, 12/01/07 89 83 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 169 SCHEDULE OF INVESTMENTS (Unaudited) Long Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Alternative Loan Trust, Ser 2005-51, Cl 2A2A (B) 5.030%, 12/20/07 $ 286 $ 284 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 1A1 (B) 5.070%, 12/20/07 2,221 2,151 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 2X, IO (B) 1.312%, 12/01/07 4,241 152 Countrywide Alternative Loan Trust, Ser 2005-61, Cl 2A1 (B) 5.069%, 12/25/07 588 571 Countrywide Alternative Loan Trust, Ser 2005-72, Cl A1 (B) 5.059%, 12/27/07 861 844 Countrywide Alternative Loan Trust, Ser 2006-OA11, Cl N1 (A) 6.000%, 09/25/46 72 71 Countrywide Alternative Loan Trust, Ser 2006-OA12, Cl A2 (B) 4.950%, 12/20/07 2,293 2,232 Countrywide Alternative Loan Trust, Ser 2006-OA2, Cl X1P, IO 1.772%, 12/01/07 7,615 353 Credit Suisse Mortgage Capital Securities, Ser 2007-C1, Cl AM 5.416%, 02/15/40 2,940 2,817 DSLA Mortgage Loan Trust, Ser 2004-AR1, Cl A2A (B) 5.096%, 12/19/07 114 112 DSLA Mortgage Loan Trust, Ser 2005-AR2, Cl 2A1A (B) 4.896%, 12/19/07 479 468 DSLA Mortgage Loan Trust, Ser 2005-AR4, Cl 2A1A (B) 4.946%, 12/21/07 591 576 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl 2A1A (B) 5.873%, 12/01/07 2,510 2,515 GS Mortgage Securities, Ser 2006-GG8, Cl A4 5.560%, 11/10/39 1,980 1,995 GS Mortgage Securities, Ser 2007-GG10, Cl A4 (B) 5.993%, 08/10/45 1,460 1,496 Greenpoint Mortgage Funding Trust, Ser 2006-AR3, Cl 4A1 (B) 4.999%, 12/25/07 2,210 2,148 Greenwich Capital Commercial Funding, Ser 2005-GG5, Cl AM (B) 5.277%, 12/01/07 1,960 1,886 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Greenwich Capital Commercial Funding, Ser 2007-GG9, Cl A4 5.444%, 03/10/39 $ 800 $ 797 Harborview Mortgage Loan Trust, Ser 2004-8, Cl 2A4A (B) 5.086%, 12/19/07 609 603 Harborview Mortgage Loan Trust, Ser 2005-01, Cl X, IO (B) 1.446%, 12/01/07 1,440 26 Harborview Mortgage Loan Trust, Ser 2005-10, Cl X, IO (B) 1.548%, 12/01/07 3,292 75 Harborview Mortgage Loan Trust, Ser 2005-11, Cl 2A1A (B) 4.996%, 12/19/07 831 813 Harborview Mortgage Loan Trust, Ser 2005-12, Cl X2B, IO (B) 1.339%, 12/01/07 3,494 63 Harborview Mortgage Loan Trust, Ser 2006-1, Cl X1, IO (B) 1.863%, 03/19/37 7,737 270 Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl A1 (B) 5.179%, 12/25/07 420 410 Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl AX2, IO (B) 0.676%, 12/01/07 1,049 20 Indymac Index Mortgage Loan Trust, Ser 2004-AR5, Cl 2A1B (B) 5.189%, 12/27/07 310 305 Indymac Index Mortgage Loan Trust, Ser 2004-AR6, Cl 6A1 (B) 5.460%, 12/01/07 279 279 Indymac Index Mortgage Loan Trust, Ser 2004-AR7, Cl A2 (B) 5.219%, 12/25/07 94 93 Indymac Index Mortgage Loan Trust, Ser 2004-AR8, Cl 2A2A (B) 5.189%, 12/27/07 96 93 Indymac Index Mortgage Loan Trust, Ser 2005-AR18, Cl 2A1A (B) 5.099%, 12/25/07 1,472 1,433 Inman Square Funding, Ser 2A, Cl I (A) (B) 5.694%, 01/06/08 1,950 1,657 JPMorgan Chase Commercial Mortgage, Ser 2006-CB16, Cl AM 5.593%, 05/12/45 2,330 2,264 JPMorgan Chase Commercial Mortgage, Ser 2006-LDP7, Cl A4 (B) 6.066%, 12/01/07 535 552 - -------------------------------------------------------------------------------- 170 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- JPMorgan Chase Commercial Mortgage, Ser 2007-CB19, Cl A4 (B) 5.937%, 02/12/49 $ 1,465 $ 1,493 JPMorgan Chase Commercial Mortgage, Ser 2007-LDPX, Cl A3 5.420%, 01/15/49 460 456 JPMorgan Mortgage Trust, Ser 2005-A2, Cl 9A1 (B) 4.236%, 04/25/35 1,162 1,198 Lehman XS NIM Trust, Ser 2006-2N, Cl A1 (A) 7.000%, 02/27/46 415 414 Master Adjustable Rate Mortgage Trust, Ser 2006-0A2, Cl 4A1A (B) 5.783%, 12/01/07 2,305 2,243 Master Alternative Loans Trust, Ser 2003-3, Cl 2A1 8.500%, 05/25/33 188 190 Master Seasoned Securities Trust, Ser 2005-1, Cl 4A1 (B) 6.025%, 12/25/07 433 441 Residential Accredit Loans, Ser 2005-Q03, Cl A1 (B) 5.189%, 12/25/07 2,701 2,637 Structured Asset Mortgage Investments, Ser 2006-AR1, Cl 3A1 (B) 5.019%, 12/28/07 1,789 1,713 Washington Mutual, Ser 2000-1, Cl M2 (B) 5.933%, 12/25/07 532 533 Washington Mutual, Ser 2005-AR2, Cl 2A21 (B) 5.119%, 12/25/07 445 435 Washington Mutual, Ser 2005-AR6, Cl 2AB1 (B) 4.979%, 12/25/07 9 9 Washington Mutual, Ser 2007-0A3, Cl 4A1 (B) 5.703%, 12/01/07 1,808 1,759 -------------- 61,588 -------------- Total Mortgage-Backed Securities (Cost $88,386) ($ Thousands) 87,830 -------------- ASSET-BACKED SECURITIES -- 30.1% MORTGAGE RELATED SECURITIES -- 30.1% Ace Securities, Ser WF1, Cl A2C (B) 5.129%, 12/25/07 2,495 2,440 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Asset-Backed Securities Home Equity Loan Trust, Ser 2003-HE4, Cl M2 (B) 6.652%, 12/15/07 $ 800 $ 744 Asset-Backed Securities Home Equity Loan Trust, Ser 2005-HE6, Cl A2D (B) 5.071%, 12/25/07 3,000 2,984 Aviation Capital Group Trust, Ser 2003-2A, Cl G2 (A) (B) 5.540%, 12/20/07 586 589 BNC Mortgage Loan Trust, Ser 2007-2, Cl A2 (B) 4.889%, 12/25/07 646 622 Bayview Financial Acquisition Trust, Ser 2004-B, Cl A1 (A) (B) 5.300%, 12/28/07 1,500 1,425 Bayview Financial Acquisition Trust, Ser 2005-A, Cl A1 (A) (B) 5.300%, 12/28/07 2,100 1,995 Bayview Financial Revolving Mortgage Loan Trust, Ser 2005-E, Cl A1 (A) (B) 5.300%, 12/28/07 2,400 2,206 Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE1, Cl 1A1 (B) 4.909%, 12/25/07 2,586 2,517 Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE5, Cl 1A2 (B) 4.969%, 12/25/07 2,300 2,091 Carrington Mortgage Loan Trust, Ser 2006-NC5, ClA1 (B) 4.839%, 12/25/07 924 903 Citigroup Mortgage Loan Trust, Ser 2007-WFH1, Cl A1 (B) 4.843%, 12/25/07 582 571 Continental Airlines, Ser 2002-1, Cl G1 (B) 5.319%, 02/15/08 84 84 Countrywide Asset-Backed Certificates, Ser 2003-BC1, Cl M1 (B) 6.169%, 12/25/07 269 246 Countrywide Asset-Backed Certificates, Ser 2005-12, Cl 1A1 (B) 4.939%, 12/27/07 997 995 Countrywide Asset-Backed Certificates, Ser 2005-13, Cl AF1 (B) 4.919%, 12/27/07 117 116 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 171 SCHEDULE OF INVESTMENTS (Unaudited) Long Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Countrywide Home Equity Loan Trust, Ser 2005-M, Cl A2 (B) 4.772%, 12/15/07 $ 191 $ 191 Countrywide Home Loans, Ser 2006-2, Cl 1A1 (B) 5.109%, 03/25/35 314 307 Credit-Based Asset Servicing, Ser 2005-CB5, Cl AF1 (B) 4.929%, 12/25/07 194 193 Credit-Based Asset Servicing, Ser 2006-CB4, Cl AV3 (B) 4.939%, 12/25/07 2,750 2,553 Credit-Based Asset Servicing, Ser 2007-CB2, Cl A2A (G) 5.891%, 02/25/37 1,882 1,869 First Franklin Mortgage Loan Asset, Ser 2005-FF2, Cl A2C (B) 5.099%, 12/25/07 1,824 1,782 First Franklin Mortgage Loan Asset, Ser 2007-FF1, Cl A2D (B) 5.009%, 12/25/07 2,750 2,273 First Franklin Mortgage Loan Asset, Ser 2007-FF2, Cl A2D (B) 5.009%, 12/25/07 1,850 1,529 GMAC Mortgage Loan Trust, Ser 2000-HE2, Cl A1 (B) 5.229%, 12/25/07 630 616 GSAMP Trust, Ser 2006-HE7, Cl A2A (B) 4.829%, 12/25/07 1,045 1,020 GSR Mortgage Loan Trust, Ser 2005-HEL1, Cl M2 (B) 5.519%, 12/29/07 1,700 338 Greenpoint Mortgage Funding Trust, Ser 2005-HE2, Cl A1 (B) 4.852%, 12/15/07 20 20 Home Equity Asset Trust, Ser 2007-2, Cl 2A4 (B) 5.159%, 12/02/07 1,900 1,598 Home Equity Asset Trust, Ser 2007-3, Cl 2A2 (B) 4.969%, 12/25/07 2,300 2,054 Home Equity Mortgage Trust, Ser 2006-1, Cl A1B (B) 4.919%, 12/27/07 771 729 Indymac Home Equity Loan Asset- Backed Trust, Ser 2002-A, Cl M1 (B) 5.914%, 12/27/07 953 924 Irwin Home Equity, Ser 2003-A, Cl M2 (B) 6.939%, 12/27/07 342 334 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Ivy Lane CDO, Ser 2006-1A, Cl A1 (A) (B) 5.205%, 02/05/08 $1,367 $ 1,190 Lehman XS Trust, Ser 2006-12N, Cl A1A1 (B) 4.869%, 12/25/07 450 448 Long Beach Asset Holdings, Ser 2006-9, Cl N1 (A) 6.250%, 10/25/46 826 413 Merrill Lynch Mortgage Investors, Ser 2006-WMC1, Cl A2B (B) 4.929%, 12/27/07 2,703 2,660 Mid-State Trust, Ser 2004-1, Cl B 8.900%, 08/15/37 432 418 Morgan Stanley Capital I, Ser 2002-HE3, Cl M1 (B) 5.888%, 12/26/07 1,618 1,562 Morgan Stanley Capital I, Ser 2004-NC2, Cl M2 (B) 5.989%, 12/26/07 1,012 950 NationStar NIM Trust, Ser 2007-B, Cl A (A) 8.750%, 05/25/37 695 556 Nationstar Home Equity Loan Trust, Ser 2006-B, Cl AV3 (B) 4.959%, 12/25/07 2,565 2,245 Nationstar Home Equity Loan Trust, Ser 2007-A, Cl AV1 (B) 4.849%, 12/25/07 1,637 1,603 Nationstar Home Equity Loan Trust, Ser 2007-B, Cl 2AV4 (B) 5.109%, 12/25/07 2,000 1,696 Nomura Asset Acceptance, Ser 2006-S1, Cl A1 (A) (B) 4.929%, 12/25/07 520 488 Renaissance Home Equity Loan Trust, Ser 2007-1, Cl N (A) 9.793%, 04/25/37 514 401 Residential Asset Mortgage Products, Ser 2007-RZ1, Cl A1 (B) 4.859%, 12/25/07 1,387 1,357 Residential Funding Mortgage Securities, Ser 1999-HI8, Cl AI7 (G) 7.970%, 11/25/29 266 265 Residential Funding Mortgage Securities, Ser 2006-HSA2, Cl AI1 (B) 4.899%, 12/27/07 881 873 Saxon Asset Securities Trust, Ser 2005-1, Cl M1 (B) 5.584%, 12/25/07 1,795 1,705 - -------------------------------------------------------------------------------- 172 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Soundview Home Equity Loan Trust, Ser 2006-1, Cl A2 (B) 4.929%, 12/27/07 $1,272 $ 1,261 Terwin Mortgage Trust, Ser 2005-14HE, Cl AF1 (B) 4.929%, 12/27/07 9 9 -------------- Total Asset-Backed Securities (Cost $64,505) ($ Thousands) 58,958 -------------- CORPORATE OBLIGATIONS -- 15.0% FINANCIALS -- 11.2% Bank of America, Ser A (A) 8.070%, 12/31/26 1,667 1,734 Barrick Gold Finance 5.800%, 11/15/34 897 825 Capital One Financial MTN (B) 6.004%, 12/11/07 1,000 948 Citigroup 4.125%, 02/22/10 1,000 990 Corestates Capital Trust I (A) 8.000%, 12/15/26 1,000 1,036 Countrywide Financial (B) 5.128%, 02/05/08 200 178 Countrywide Financial MTN (B) 5.430%, 12/26/07 375 282 Countrywide Home Loan MTN, Ser K 4.250%, 12/19/07 1,100 1,089 Credit Suisse First Boston London (A) (B) (E) 0.000%, 12/24/07 669 649 0.000%, 12/24/07 602 584 Deutsche Bank Capital Funding Trust (A) (B) 5.628%, 01/19/49 1,182 1,051 Deutsche Bank Luxembourg (A) 6.825%, 12/28/07 281 282 Farmers Insurance Exchange (A) 8.625%, 05/01/24 160 181 Ford Motor Credit LLC 6.625%, 06/16/08 240 236 GMAC LLC (B) 7.821%, 12/25/07 938 769 HSBC Capital Trust II (A) 8.380%, 05/15/27 9 9 Lehman Brothers Holdings MTN (B) 8.920%, 02/16/08 462 462 5.429%, 01/18/08 730 688 Lehman Brothers Holdings MTN, Ser H (B) 1.427%, 05/30/08 528 577 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Meridian Funding (A) (B) 5.443%, 01/06/08 $ 69 $ 69 Merrill Lynch MTN (B) 8.950%, 05/18/08 650 625 8.680%, 05/02/08 660 636 Nationwide Mutual Insurance (A) 7.875%, 04/01/33 300 358 Popular North America 5.200%, 12/12/07 1,000 1,000 Popular North America (B) 6.054%, 12/12/07 735 735 Power Receivables Financial (A) 6.290%, 01/01/12 313 328 Security Benefit Life (A) 7.450%, 10/01/33 1,500 1,579 Simon Property Group L.P.+ 5.750%, 05/01/12 870 890 Toyota Motor Credit MTN (B) 8.000%, 04/24/08 1,395 1,385 Weingarten Realty+ 8.250%, 01/22/10 1,350 1,458 ZFS Finance USA Trust V (A) (B) 6.500%, 05/09/37 500 455 -------------- 22,088 -------------- INDUSTRIALS -- 2.3% America West Airlines, Ser 01-1 7.100%, 04/02/21 170 175 American Airlines, Ser AMBC 3.857%, 07/09/10 192 184 Cedar Brakes II LLC (B) 9.875%, 09/01/13 685 752 Continental Airlines, Ser 99-2 7.056%, 09/15/09 900 911 Continental Airlines, Ser AMBC 6.236%, 03/15/20 92 91 Delta Air Lines, Ser 2001-1 7.111%, 09/18/11 800 806 Northwest Airlines, Ser 1A-2 6.841%, 04/01/11 500 500 United Air Lines, Ser 2001-1 6.201%, 09/01/08 384 382 United Air Lines, Ser 2001-1, Cl A-1 6.071%, 03/01/13 687 684 -------------- 4,485 -------------- UTILITIES -- 1.5% Entergy Gulf States (B) 5.980%, 02/15/08 525 521 Power Contract Financing (A) 6.256%, 02/01/10 765 781 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 173 SCHEDULE OF INVESTMENTS (Unaudited) Long Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Progress Energy Florida, Cl A (B) 5.279%, 12/13/07 $ 1,000 $ 998 Sempra Energy (A) 5.781%, 11/01/14 600 612 -------------- 2,912 -------------- Total Corporate Obligations (Cost $30,083) ($ Thousands) 29,485 -------------- PREFERRED STOCK -- 0.8% FINANCIALS -- 0.8% Freddie Mac, 8.375% 60,000 1,530 -------------- Total Preferred Stock (Cost $1,500) ($ Thousands) 1,530 -------------- U.S. GOVERNMENT AGENCY OBLIGATIONS (F) -- 3.6% FHLB 4.551%, 12/07/07 700 699 4.325%, 12/28/07 (C) 600 598 FHLMC 4.250%, 12/27/07 1,000 997 FNMA 4.709%, 12/07/07 (C) 3,135 3,134 4.140%, 12/05/07 (C) 1,600 1,600 -------------- Total U.S. Government Agency Obligations (Cost $7,026) ($ Thousands) 7,028 -------------- COMMERCIAL PAPER (D) --2.3% FINANCIALS -- 2.3% BNP Paribas Finance 4.750%, 12/17/07 1,940 1,936 Merrill Lynch 4.930%, 12/20/07 2,580 2,574 -------------- Total Commercial Paper (Cost $4,510) ($ Thousands) 4,510 -------------- CASH EQUIVALENT -- 0.7% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++* 1,366,835 1,367 -------------- Total Cash Equivalent (Cost $1,367) ($ Thousands) 1,367 -------------- - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CERTIFICATES OF DEPOSIT (B) -- 0.4% JPMorgan Chase 8.750%, 02/28/08 $ 455 $ 450 7.590%, 12/28/07 385 369 -------------- Total Certificates of Deposit (Cost $820) ($ Thousands) 819 -------------- Total Investments -- 97.7% (Cost $198,197) ($ Thousands) $ 191,527 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED TYPE OF NUMBER OF EXPIRATION DEPRECIATION CONTRACT CONTRACTS DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- U.S. Long Treasury Bond 17 Mar-2008 $ (1) ============== A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows: - -------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund pays monthly payment of 0.0270% (0.320% per annum) times the notional amount of the ABX.HE.AA 06-1 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Lehman Brothers) 07/25/45 1,650 $ 104 Fund pays monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Citigroup) 05/25/46 605 69 Fund pays monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Lehman Brothers) 05/25/46 305 59 Fund receives monthly payment of 0.0080% (0.090% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 08/25/37 1,225 (63) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 505 (126) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 200 (56) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Barclays) 08/25/37 225 (65) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 200 (59) - -------------------------------------------------------------------------------- 174 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 200 $ (68) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 08/25/37 1,005 (227) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 605 (101) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 305 (70) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 205 (100) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 305 (33) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 305 (16) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 305 (14) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 305 1 Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 200 (80) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 300 (131) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 2,015 (761) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 380 (132) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 200 (90) - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 705 $ (257) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,210 (156) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 515 (71) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 400 (159) Fund pays quarterly payment of 0.2440% (0.978% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/12 235 30 Fund pays quarterly payment of 0.0990% (0.398% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 400 106 Fund pays quarterly payment of 0.2430% (0.970% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/12 100 13 Fund pays quarterly payment of 0.1770% (0.708% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/12 220 19 Fund pays quarterly payment of 0.2280% (0.913% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 195 25 Fund pays quarterly payment of 0.1740% (0.695% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 500 42 Fund pays quarterly payment of 0.2230% (0.890% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 325 41 Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 75 20 Fund pays quarterly payment of 0.0790% (0.318% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 2,850 319 Fund pays quarterly payment of 0.0460% (0.185% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,300 30 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 175 SCHEDULE OF INVESTMENTS (Unaudited) Long Duration Fund (Concluded) November 30, 2007 - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0470% (0.188% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 50 $ 1 Fund pays quarterly payment of 0.1160% (0.463% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 400 42 Fund pays quarterly payment of 0.1060% (0.425% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 650 70 Fund pays quarterly payment of 0.2420% (0.968% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Deutsche Bank) 12/20/12 370 47 Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 100 27 Fund pays quarterly payment of 0.2360% (0.945% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/12 325 41 Fund pays quarterly payment of 0.0730% (0.290% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 2,000 97 Fund pays quarterly payment of 0.1770% (0.708% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 310 26 Fund pays quarterly payment of 0.0570% (0.228% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 1,300 40 Fund pays quarterly payment of 0.1970% (0.788% per annum) times the notional amount of Countrywide Financial, 4.000%, 12/20/07. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/07 400 (2) Fund receives quarterly payment of 0.1880% (0.750% per annum) times the notional amount of Countrywide Financial, 4.000%, 12/20/07. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/07 350 (2) -------- $ (1,570) ======== - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS - --------------------------------------------------------------------------------------------------- Pay fixed rate of 4.524% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/24/17 1,060 $ 91 Pay fixed rate of 4.650% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/18/07 1,900 142 Pay fixed rate of 5.000% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/18/07 210 9 Pay fixed rate of 5.030% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/16/07 210 8 - --------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - --------------------------------------------------------------------------------------------------- Pay fixed rate of 5.050% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 10/16/07 210 $ 9 Receive fixed rate of 5.001% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 01/04/21 35,565 1,544 Receive fixed rate of 5.064% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Citigroup) 03/02/16 11,060 416 Receive fixed rate of 5.178% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 01/03/17 5,615 334 Receive fixed rate of 5.183% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 11/02/20 28,025 1,206 Receive fixed rate of 5.186% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Citigroup) 03/02/22 16,450 644 Receive fixed rate of 5.280% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 09/05/16 3,690 196 Receive fixed rate of 5.302% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 05/02/22 5,340 286 Receive fixed rate of 5.310% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 04/03/22 26,200 1,410 Receive fixed rate of 5.391% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 04/04/16 5,980 374 Receive fixed rate of 5.433% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 02/02/22 19,515 1,587 Receive fixed rate of 5.728% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 07/05/16 4,400 447 Receive fixed rate of 5.734% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 07/05/22 6,700 759 -------- $ 9,462 ======== Percentages are based on Net Assets of $196,132 ($ Thousands). * Rate shown is the 7-day effective yield as of November 30, 2007. + Real Estate Investment Trust ++ Investments in Affiliated Security (see Note 3) (A) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (B) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (C) Security, or portion thereof, has been pledged as collateral on open futures contracts. (D) The rate reported on the Schedule of Investments is the effective yield at the time of purchase. (E) The note accrues 9.65% annual coupon for any day that the 3-year swap rate exceeds the 1-year swap rate by 22 or more basis points. (F) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. ARM -- Adjustable Rate Mortgage Cl -- Class CDO -- Collateralized Debt Obligation CMO -- Collateralized Mortgage Obligation FHLB -- Federal Home Loan Bank FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GNMA -- Government National Mortgage Association IO -- Interest Only LIBOR -- London InterBank Offering Rate LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note NIM -- Net Interest Margin Ser -- Series TBA -- To be Announced. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 176 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Extended Duration Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Asset-Backed Securities 29.9% Financials 24.8% Mortgage-Backed Securities 24.6% Short-Term Investments 10.9% U.S. Government Agency Obligations 5.0% Industrials 3.4% Utilities 0.8% Consumer Discretionary 0.4% Certificates of Deposit 0.2% +++ Percentages based on total investments. - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- MORTGAGE-BACKED SECURITIES -- 30.6% AGENCY MORTGAGE-BACKED OBLIGATIONS -- 7.7% FHLMC 6.500%, 08/01/29 $ 585 $ 591 FHLMC ARM 7.267%, 01/01/33 361 365 5.296%, 08/01/34 1,854 1,893 5.248%, 04/01/34 1,114 1,134 5.130%, 04/01/34 964 982 5.086%, 05/01/34 1,655 1,694 4.048%, 08/01/34 1,099 1,127 FHLMC CMO, Ser 2006-4, Cl WE 4.500%, 02/25/36 4,000 3,601 FHLMC CMO, Ser 2733, Cl SB (B) 3.823%, 12/15/07 6,460 5,469 FHLMC CMO, Ser 2748, Cl ZT 5.500%, 02/15/24 375 374 FHLMC CMO, Ser 3096, Cl FL (B) 5.051%, 12/15/07 4,693 4,624 FHLMC CMO, Ser 3152, Cl JF (B) 5.101%, 12/15/07 4,941 4,880 FNMA 7.000%, 04/01/34 613 636 4.350%, 12/17/07 4,450 4,441 FNMA ARM 7.136%, 01/01/33 428 436 6.939%, 07/01/33 372 379 6.875%, 06/01/33 1,285 1,318 6.442%, 08/01/34 772 786 6.139%, 08/01/36 3,362 3,426 5.817%, 11/01/33 1,125 1,134 5.101%, 10/01/34 1,784 1,808 4.770%, 06/01/35 4,447 4,477 4.524%, 09/01/35 4,106 4,106 4.482%, 05/01/35 4,938 5,023 3.886%, 04/01/35 1,090 1,090 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- FNMA CMO, Ser 2001-48, Cl PD 6.500%, 06/25/20 $ 171 $ 172 FNMA CMO, Ser 2003-122, Cl ZQ 6.000%, 12/25/33 518 542 FNMA CMO, Ser 2004-12, Cl ZX 6.000%, 03/25/34 472 485 FNMA CMO, Ser 2004-80, Cl XZ 5.000%, 11/25/34 128 105 GNMA CMO, Ser 2003-112, Cl SG (B) 2.162%, 12/16/07 115 93 GNMA CMO, Ser 2003-86, Cl ZK 5.000%, 10/20/33 2,513 2,383 -------------- 59,574 -------------- NON-AGENCY MORTGAGE-BACKED OBLIGATIONS -- 22.9% Alliance Bancorp Trust, Ser OA1, Cl A1 (B) 5.029%, 12/25/07 3,464 3,378 American General Mortgage Loan Trust, Ser 2006-1, Cl A1 (A) (B) 5.750%, 12/25/35 919 908 American Home Mortgage Assets, Ser 2006-2, Cl 2A1 (B) 4.979%, 12/25/07 6,069 5,890 American Home Mortgage Assets, Ser 2006-3, Cl 3A12 (B) 4.973%, 12/25/07 5,102 4,980 American Home Mortgage Assets, Ser 2007-2, Cl A1 (B) 4.914%, 12/25/07 6,215 6,020 American Home Mortgage Investment Trust, Ser 2007-2, Cl 11A1 (B) 5.019%, 12/25/07 4,745 4,571 Bank of America Mortgage Securities, Ser 2003-E, Cl 2A1 (B) 4.033%, 12/01/07 4,067 4,078 Bayview Commercial Asset Trust, Ser 2005-1A, Cl A1 (A) (B) 5.089%, 12/25/07 4,029 3,922 Bayview Commercial Asset Trust, Ser 2006-1A, Cl M3 (A) (B) 5.209%, 12/25/07 2,068 1,783 Bayview Commercial Asset Trust, Ser 2007-1, Cl A1 (A) (B) 5.009%, 12/25/07 5,034 4,759 Bayview Commercial Asset Trust, Ser 2007-2A, Cl A1 (A) (B) 5.059%, 12/25/07 5,351 5,096 Bayview Commercial Asset Trust, Ser 2007-3, Cl A1 (A) (B) 5.029%, 12/25/07 6,065 5,796 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 177 SCHEDULE OF INVESTMENTS (Unaudited) Extended Duration Fund November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Chase Mortgage Finance, Ser 2007-A2, Cl 2A3 (B) 4.243%, 11/25/33 $ 3,300 $ 3,236 Citigroup Commercial Mortgage Trust, Ser 2007-C6, Cl AM (B) 5.889%, 06/10/17 8,775 8,623 Citigroup Mortgage Loan Trust, Ser 2003-1, Cl WA2 6.500%, 06/25/31 153 156 Citigroup Mortgage Loan Trust, Ser 2004-2, Cl 2A1 (A) 6.500%, 08/25/18 151 152 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 2A1 (B) 6.333%, 12/01/07 1,372 1,319 Countrywide Alternative Loan Trust, Ser 2005-27, Cl 3A2 (B) 6.033%, 12/01/07 165 153 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 1A1 (B) 5.070%, 12/20/07 4,033 3,906 Countrywide Alternative Loan Trust, Ser 2005-59, Cl 2X, IO (E) 1.312%, 12/01/07 5,590 200 Countrywide Alternative Loan Trust, Ser 2005-61, Cl 2A1 (B) 5.069%, 12/25/07 766 743 Countrywide Alternative Loan Trust, Ser 2005-72, Cl A1 (B) 5.059%, 12/27/07 1,415 1,387 Countrywide Alternative Loan Trust, Ser 2006-OA11, Cl N1 (A) 6.000%, 09/25/46 101 99 Countrywide Alternative Loan Trust, Ser 2006-OA12, Cl A2 (B) 4.950%, 12/20/07 4,512 4,392 Countrywide Alternative Loan Trust, Ser 2006-OA2, Cl X1P, IO 1.772%, 12/01/07 9,714 450 Credit Suisse Mortgage Capital Securities, Ser 2007-C1, Cl AM 5.416%, 02/15/40 8,775 8,409 DSLA Mortgage Loan Trust, Ser 2004-AR1, Cl A2A (B) 5.096%, 12/19/07 128 125 DSLA Mortgage Loan Trust, Ser 2005-AR4, Cl 2A1A (B) 4.946%, 12/21/07 950 926 DSLA Mortgage Loan Trust, Ser 2006-AR1, Cl 2A1A (B) 5.873%, 12/01/07 6,275 6,287 GS Mortgage Securities, Ser 2006-GG8, Cl A4 5.560%, 11/10/39 5,935 5,980 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- GS Mortgage Securities, Ser 2007-GG10, Cl A4 (B) 5.993%, 08/10/45 $ 4,240 $ 4,345 Greenpoint Mortgage Funding Trust, Ser 2006-AR3, Cl 4A1 (B) 4.999%, 12/25/07 5,683 5,524 Greenwich Capital Commercial Funding, Ser 2005-GG5, Cl AM (B) 5.277%, 12/01/07 8,775 8,443 Greenwich Capital Commercial Funding, Ser 2007-GG9, Cl A4 5.444%, 03/10/39 2,440 2,431 Harborview Mortgage Loan Trust, Ser 2004-8, Cl 2A4A (B) 5.086%, 12/19/07 829 821 Harborview Mortgage Loan Trust, Ser 2005-01, Cl X, IO (E) 1.446%, 12/01/07 1,466 26 Harborview Mortgage Loan Trust, Ser 2005-10, Cl 2A1A (B) 4.996%, 12/21/07 986 952 Harborview Mortgage Loan Trust, Ser 2005-10, Cl X, IO (B) 1.548%, 12/01/07 4,956 112 Harborview Mortgage Loan Trust, Ser 2005-12, Cl X2B, IO (B) 1.339%, 12/01/07 5,820 105 Harborview Mortgage Loan Trust, Ser 2006-1, Cl X1, IO (B) 1.863%, 03/19/37 9,091 317 Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl A1 (B) 5.179%, 12/25/07 432 422 Indymac Index Mortgage Loan Trust, Ser 2004-AR12, Cl AX2, IO (E) 0.676%, 12/01/07 1,703 32 Indymac Index Mortgage Loan Trust, Ser 2004-AR5, Cl 2A1B (B) 5.189%, 12/27/07 398 391 Indymac Index Mortgage Loan Trust, Ser 2004-AR6, Cl 6A1 (B) 5.460%, 12/01/07 240 240 Indymac Index Mortgage Loan Trust, Ser 2004-AR7, Cl A2 (B) 5.219%, 12/25/07 128 127 Indymac Index Mortgage Loan Trust, Ser 2004-AR8, Cl 2A2A (B) 5.189%, 12/27/07 318 307 Indymac Index Mortgage Loan Trust, Ser 2005-AR18, Cl 2A1A (B) 5.099%, 12/25/07 1,962 1,911 - -------------------------------------------------------------------------------- 178 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Indymac Index Mortgage Loan Trust, Ser 2005-AR18, Cl 2A1B (B) 5.569%, 12/25/07 $ 515 $ 508 Indymac Index Mortgage Loan Trust, Ser 2006-AR2, Cl 1A1A (B) 5.009%, 12/25/07 2,185 2,110 Inman Square Funding, Ser 2A, Cl I (A) (B) 5.694%, 01/06/08 3,300 2,805 JPMorgan Chase Commercial Mortgage, Ser 2006-LDP7, Cl A4 (B) 6.066%, 12/01/07 1,635 1,687 JPMorgan Chase Commercial Mortgage, Ser 2007-CB19, Cl A4 (B) 5.937%, 02/12/49 4,485 4,570 JPMorgan Chase Commercial Mortgage, Ser 2007-LDPX, Cl A3 5.420%, 01/15/49 1,400 1,388 JPMorgan Mortgage Trust, Ser 2005-A2, Cl 9A1 (B) 4.236%, 04/25/35 2,965 3,057 Lehman XS NIM Trust, Ser 2006-2N, Cl A1 (A) 7.000%, 02/27/46 664 663 Master Adjustable Rate Mortgage Trust, Ser 2006-0A2, Cl 4A1A (B) 5.783%, 12/01/07 8,112 7,892 Master Alternative Loans Trust, Ser 2003-3, Cl 2A1 8.500%, 05/25/33 157 158 Master Seasoned Securities Trust, Ser 2005-1, Cl 4A1 (B) 6.025%, 12/25/07 940 958 Residential Accredit Loans, Ser 2005-Q03, Cl A1 (B) 5.189%, 12/25/07 6,926 6,761 Structured Asset Mortgage Investments, Ser 2006-AR1, Cl 3A1 (B) 5.019%, 12/28/07 2,740 2,624 Structured Asset Mortgage Investments, Ser 2006-AR5, Cl 2A1 (B) 4.999%, 12/25/07 707 678 Wachovia Bank Commercial Mortgage Trust, Ser 2006-C25, Cl AM (B) 5.742%, 12/01/07 3,620 3,592 Washington Mutual, Ser 2000-1, Cl M2 (B) 5.933%, 12/25/07 468 468 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Washington Mutual, Ser 2003-AR10, Cl A4 (B) 4.056%, 10/25/33 $ 6,787 $ 6,738 Washington Mutual, Ser 2003-AR6, Cl A1 (B) 4.325%, 12/01/07 1,381 1,372 Washington Mutual, Ser 2004-AR3, Cl A2 (B) 4.243%, 06/25/34 1,037 1,026 Washington Mutual, Ser 2005-AR2, Cl 2A21 (B) 5.119%, 12/25/07 697 682 Washington Mutual, Ser 2005-AR6, Cl 2AB1 (B) 4.979%, 12/25/07 7 7 Washington Mutual, Ser 2006-AR9, Cl 1XPP (E) 0.592%, 12/01/07 110,656 870 Washington Mutual, Ser 2007-0A3, Cl 4A1 (B) 5.703%, 12/01/07 4,067 3,958 -------------- 178,802 -------------- Total Mortgage-Backed Securities (Cost $240,412) ($ Thousands) 238,376 -------------- ASSET-BACKED SECURITIES -- 26.3% MORTGAGE RELATED SECURITIES -- 26.3% Ace Securities, Ser WF1, Cl A2C (B) 5.129%, 12/25/07 3,909 3,822 Asset-Backed Securities Home Equity Loan Trust, Ser 2003-HE4, Cl M2 (B) 6.652%, 12/15/07 1,297 1,206 Asset-Backed Securities Home Equity Loan Trust, Ser 2005-HE6, Cl A2D (B) 5.071%, 12/25/07 7,500 7,460 Aviation Capital Group Trust, Ser 2003-2A, Cl G2 (A) (B) 5.540%, 12/20/07 1,224 1,232 BNC Mortgage Loan Trust, Ser 2007-2, Cl A2 (B) 4.889%, 12/25/07 1,663 1,602 Bayview Financial Acquisition Trust, Ser 2004-B, Cl A1 (A) (B) 5.300%, 12/28/07 4,500 4,275 Bayview Financial Acquisition Trust, Ser 2005-A, Cl A1 (A) (B) 5.300%, 12/28/07 4,400 4,180 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 179 SCHEDULE OF INVESTMENTS (Unaudited) Extended Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Bayview Financial Revolving Mortgage Loan Trust, Ser 2005-E, Cl A1 (A) (B) 5.300%, 12/28/07 $ 3,200 $ 2,941 Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE1, Cl 1A1 (B) 4.909%, 12/25/07 6,791 6,611 Bear Stearns Asset-Backed Securities Trust, Ser 2007-HE5, Cl 1A2 (B) 4.969%, 12/25/07 4,500 4,091 Carrington Mortgage Loan Trust, Ser 2007-RFC1, Cl 1 (B) 4.839%, 12/25/07 2,166 2,114 Centex Home Equity, Ser 2002-D, Cl AF4 (G) 5.210%, 12/01/07 1,244 1,236 Citigroup Mortgage Loan Trust, Ser 2007-WFH1, Cl A1 (B) 4.843%, 12/25/07 1,494 1,464 Citigroup Mortgage Loan Trust, Ser 2007-WFH1, Cl A3 (B) 4.933%, 12/25/07 3,000 2,569 Citigroup Mortgage Loan Trust, Ser 2007-WFH4, Cl M2 (B) 6.933%, 12/26/07 5,726 5,669 Continental Airlines, Ser 2002-1, Cl G1 (B) 5.319%, 02/15/08 293 294 Countrywide Asset-Backed Certificates, Ser 2003-BC1, Cl M1 (B) 6.169%, 12/25/07 515 471 Countrywide Asset-Backed Certificates, Ser 2005-13, Cl AF1 (B) 4.919%, 12/27/07 175 175 Countrywide Asset-Backed Certificates, Ser 2005-BC4, Cl 2A2 (B) 5.059%, 12/25/07 4,825 4,815 Countrywide Home Equity Loan Trust, Ser 2005-M, Cl A2 (B) 4.772%, 12/15/07 232 232 Credit-Based Asset Servicing, Ser 2005-CB5, Cl AF1 (B) 4.929%, 12/25/07 316 316 Credit-Based Asset Servicing, Ser 2006-CB1, Cl AF1 (G) 5.457%, 01/25/36 3,084 3,065 Credit-Based Asset Servicing, Ser 2006-CB4, Cl AV3 (B) 4.939%, 12/25/07 4,750 4,410 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Credit-Based Asset Servicing, Ser 2007-CB1, Cl AF1A (B) 4.943%, 12/25/07 $ 4,757 $ 4,645 Credit-Based Asset Servicing, Ser 2007-CB2, Cl A2A (G) 5.891%, 02/25/37 3,079 3,058 Credit-Based Asset Servicing, Ser 2007-CB5, Cl A1 4.849%, 12/25/07 6,547 6,224 First Franklin Mortgage Loan Asset, Ser 2005-FF10, Cl A3 (B) 4.999%, 12/25/07 3,482 3,454 First Franklin Mortgage Loan Asset, Ser 2005-FF12, Cl A2A (B) 4.879%, 12/25/07 959 957 First Franklin Mortgage Loan Asset, Ser 2005-FF2, Cl A2C (B) 5.099%, 12/25/07 4,560 4,455 First Franklin Mortgage Loan Asset, Ser 2006-FF17, Cl A6 (B) 5.099%, 12/25/07 4,700 3,994 First Franklin Mortgage Loan Asset, Ser 2007-FF1, Cl A2D (B) 5.009%, 12/25/07 6,000 4,960 First Franklin Mortgage Loan Asset, Ser 2007-FF2, Cl A2D (B) 5.009%, 12/25/07 3,800 3,141 GMAC Mortgage Loan Trust, Ser 2000-HE2, Cl A1 (B) 5.229%, 12/25/07 858 839 GSAMP Trust, Ser 2006-FM1, Cl A2A (B) 4.849%, 12/25/07 987 985 GSAMP Trust, Ser 2006-HE7, Cl A2A (B) 4.829%, 12/25/07 2,687 2,624 GSAMP Trust, Ser 2006-S6, Cl A2 (G) 5.552%, 10/25/36 4,000 1,656 GSR Mortgage Loan Trust, Ser 2005-HEL1, Cl M2 (B) 5.519%, 12/29/07 2,400 477 Greenpoint Mortgage Funding Trust, Ser 2005-HE2, Cl A1 (B) 4.852%, 12/15/07 49 49 Hasco NIM Trust, Ser 2006-FF11, Cl A (A) 6.168%, 08/26/36 207 174 Home Equity Asset Trust, Ser 2005-6, Cl 1A2 (B) 5.069%, 12/25/07 5,124 4,997 - -------------------------------------------------------------------------------- 180 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Home Equity Asset Trust, Ser 2007-2, Cl 2A4 (B) 5.159%, 12/02/07 $ 1,400 $ 1,177 Home Equity Asset Trust, Ser 2007-3, Cl 2A2 (B) 4.969%, 12/25/07 4,500 4,018 Indymac Home Equity Loan Asset- Backed Trust, Ser 2002-A, Cl M1 (B) 5.914%, 12/27/07 1,241 1,203 Indymac Residential Asset-Backed Trust, Ser 2006-A, Cl A2 (B) 4.939%, 12/25/07 2,350 2,285 Irwin Home Equity, Ser 2003-A, Cl M2 (B) 6.939%, 12/27/07 378 369 Ivy Lane CDO, Ser 2006-1A, Cl A1 (A) (B) 5.205%, 02/05/08 2,735 2,379 JPMorgan Mortgage Acquisition, Ser 2006-CH2, Cl AV2 (B) 4.839%, 12/25/07 3,609 3,515 Lehman XS Trust, Ser 2006-12N, Cl A1A1 (B) 4.869%, 12/25/07 600 597 Long Beach Asset Holdings, Ser 2006-8, Cl N1 (A) 6.048%, 10/25/46 1,625 813 Long Beach Asset Holdings, Ser 2006-9, Cl N1 (A) 6.250%, 10/25/46 1,214 607 Long Beach Mortgage Loan Trust, Ser 2006-11, Cl 2A1 (B) 4.849%, 12/25/07 1,628 1,584 Master Asset-Backed Securities Trust, Ser 2007-HE1, Cl A1 (B) 4.869%, 12/25/07 6,175 5,889 Merrill Lynch Mortgage Investors Trust, Ser 2006-RM4, Cl A2B (B) 4.889%, 12/25/07 7,123 6,744 Mid-State Trust, Ser 2004-1, Cl B 8.900%, 08/15/37 357 346 Morgan Stanley Capital I, Ser 2002-HE3, Cl M1 (B) 5.888%, 12/26/07 2,428 2,344 Morgan Stanley Capital I, Ser 2007-HE5, Cl A2A (B) 4.899%, 12/25/07 1,607 1,567 Morgan Stanley Capital I, Ser 2007-HE7, Cl M1 (B) 6.789%, 12/25/07 4,942 4,448 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- NationStar NIM Trust, Ser 2007-B, Cl A (A) 8.750%, 05/25/37 $ 1,390 $ 1,112 NationStar NIM Trust, Ser 2007-C, Cl A (A) 8.000%, 06/25/37 1,308 726 Nationstar Home Equity Loan Trust, Ser 2006-B, Cl AV3 (B) 4.959%, 12/25/07 5,075 4,441 Nationstar Home Equity Loan Trust, Ser 2007-A, Cl AV1 (B) 4.849%, 12/25/07 4,210 4,125 Nationstar Home Equity Loan Trust, Ser 2007-A, Cl AV4 (B) 5.019%, 12/25/07 4,000 3,384 Nationstar Home Equity Loan Trust, Ser 2007-B, Cl 2AV4 (B) 5.109%, 12/25/07 4,240 3,596 Nomura Asset Acceptance, Ser 2006-S4, Cl AIO, IO (B) 10.000%, 08/25/36 6,667 415 Nomura Home Equity Loan, Ser 2007-3, Cl 2A1 (B) 4.929%, 12/31/07 4,987 4,788 Popular Asset-Backed Mortgage Pass-Through Trust, Ser 2007-D, Cl A1 (B) 4.849%, 12/25/07 1,289 1,262 Renaissance Home Equity Loan Trust, Ser 2006-4, Cl AV1 (B) 4.859%, 12/25/07 1,358 1,326 Renaissance Home Equity Loan Trust, Ser 2007-1, Cl N (B) 9.793%, 04/25/37 985 769 Residential Asset Mortgage Products, Ser 2006-RZ5, Cl A1B (B) 4.889%, 12/25/07 5,369 5,269 Residential Funding Mortgage Securities, Ser 1999-HI8, Cl AI7 (G) 7.970%, 11/25/29 217 216 Saco I Trust, Ser 2006-8, Cl AIO, IO (B) 5.500%, 06/25/36 13,190 217 Saxon Asset Securities Trust, Ser 2005-1, Cl M1 (B) 5.584%, 12/25/07 2,925 2,778 Securitized Asset-Backed Receivables LLC, Ser 2007-HE1, Cl A2A (B) 4.849%, 12/25/07 4,492 4,127 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 181 SCHEDULE OF INVESTMENTS (Unaudited) Extended Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Securitized Asset-Backed Receivables LLC, Ser 2007-BR, Cl A2A (B) 4.919%, 12/25/07 $ 5,189 $ 5,025 Soundview Home Equity Loan Trust, Ser 2006-OPT3, Cl 2A1 (B) 4.849%, 12/25/07 2,819 2,808 Soundview Home Equity Loan Trust, Ser 2007-OPT5, Cl M1 (B) 6.439%, 12/25/07 5,700 4,560 Soundview NIM Trust, Ser 2007-OPT1, Cl N (A) 9.000%, 06/25/37 1,730 1,384 Terwin Mortgage Trust, Ser 2006-8, Cl 2A1 (A) (B) 4.500%, 08/25/37 41 38 UCFC Home Equity Loan, Ser 1998-D, Cl MF1 6.905%, 04/15/30 215 216 Wells Fargo Home Equity Trust, Ser 2007-1, Cl A1 (B) 4.889%, 12/25/07 1,482 1,449 -------------- Total Asset-Backed Securities (Cost $222,442) ($ Thousands) 204,855 -------------- CORPORATE OBLIGATIONS -- 10.3% CONSUMER DISCRETIONARY -- 0.4% Comcast (B) 5.543%, 01/16/08 1,850 1,843 Johnson Controls (B) 5.444%, 01/17/08 1,049 1,049 -------------- 2,892 -------------- FINANCIALS -- 6.8% Bank of America, Ser A (A) 8.070%, 12/31/26 3,428 3,566 Barrick Gold Finance 5.800%, 11/15/34 1,263 1,162 Capital One Financial MTN (B) 6.004%, 12/11/07 1,000 948 Citigroup 4.125%, 02/22/10 3,494 3,460 Countrywide Financial (B) 5.128%, 02/05/08 1,200 1,066 Countrywide Financial MTN 5.430%, 12/26/07 950 714 Countrywide Home Loan MTN, Ser K 4.250%, 12/19/07 3,500 3,465 Credit Suisse First Boston London (A) (B) (F) 0.000%, 12/24/07 569 552 0.000%, 12/24/07 1,419 1,377 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Deutsche Bank Capital Funding Trust (A) (B) 5.628%, 01/19/49 $ 2,013 $ 1,790 Deutsche Bank Luxembourg (A) 6.825%, 12/28/07 304 304 Developers Divers Realty+ 3.875%, 01/30/09 1,925 1,906 Duke Realty+ 6.750%, 05/30/08 1,125 1,135 Farmers Insurance Exchange (A) 8.625%, 05/01/24 175 198 First Union Institutional Capital I 8.040%, 12/01/26 1,250 1,301 Ford Motor Credit LLC 6.625%, 06/16/08 500 492 GMAC LLC (B) 7.821%, 12/25/07 982 805 HSBC Capital Trust II (A) 8.380%, 05/15/27 41 43 Kimco Realty MTN, Ser C+ 3.950%, 08/05/08 2,500 2,478 Lehman Brothers Holdings MTN (B) 11.000%, 11/07/16 1,000 1,072 8.920%, 02/16/08 756 756 5.429%, 01/18/08 990 933 4.978%, 02/16/08 2,000 1,956 Lehman Brothers Holdings MTN, Ser H (B) 1.427%, 05/30/08 861 941 Meridian Funding (A) (B) 5.443%, 01/06/08 77 77 Merrill Lynch MTN (B) 8.950%, 05/18/08 1,340 1,288 8.680%, 05/02/08 1,305 1,258 Nationwide Mutual Insurance (A) 7.875%, 04/01/33 523 623 Popular North America (B) 6.054%, 12/12/07 1,200 1,200 5.200%, 12/12/07 2,500 2,500 Power Receivables Financial (A) 6.290%, 01/01/12 1,128 1,180 Security Benefit Life (A) 7.450%, 10/01/33 2,500 2,631 Simon Property Group L.P.+ 5.750%, 05/01/12 800 818 Toyota Motor Credit MTN (B) 8.000%, 04/24/08 2,041 2,027 UDR MTN, Ser E+ 4.500%, 03/03/08 1,000 998 4.250%, 01/15/09 1,550 1,530 Weingarten Realty+ 8.250%, 01/22/10 2,725 2,944 - -------------------------------------------------------------------------------- 182 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Woodbourne Pass-Through Trust (A) (B) 5.767%, 12/08/07 $ 700 $ 698 ZFS Finance USA Trust V (A) (B) 6.500%, 05/09/37 825 751 -------------- 52,943 -------------- INDUSTRIALS -- 2.4% America West Airlines, Ser 01-1 7.100%, 04/02/21 175 180 American Airlines, Ser 1999-1 7.024%, 10/15/09 1,300 1,305 American Airlines, Ser AMBC 3.857%, 07/09/10 2,096 2,012 Cedar Brakes II LLC (A) 9.875%, 09/01/13 1,077 1,183 Continental Airlines, Ser 1998-3 6.320%, 11/01/08 2,000 2,030 Continental Airlines, Ser 99-2 7.056%, 09/15/09 2,145 2,172 Continental Airlines, Ser AMBC 6.236%, 03/15/20 116 115 Delta Air Lines, Ser 2001-1 7.111%, 09/18/11 2,200 2,216 Northwest Airlines, Ser 1A-2 6.841%, 04/01/11 2,200 2,201 United Air Lines, Ser 2001-1 6.201%, 09/01/08 768 764 United Air Lines, Ser 2001-1, Cl A-1 6.071%, 03/01/13 2,882 2,867 Viacom (B) 6.044%, 12/16/07 2,000 1,992 -------------- 19,037 -------------- UTILITIES -- 0.7% Entergy Gulf States (B) 5.980%, 02/15/08 560 556 Power Contract Financing (A) 6.256%, 02/01/10 1,707 1,744 Progress Energy Florida, Cl A (B) 5.279%, 12/13/07 1,700 1,696 Sempra Energy (A) 5.781%, 11/01/14 1,400 1,428 -------------- 5,424 -------------- Total Corporate Obligations (Cost $81,189) ($ Thousands) 80,296 -------------- - -------------------------------------------------------------------------------- Shares/Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- PREFERRED STOCK -- 1.0% FINANCIALS -- 1.0% Freddie Mac, 8.375%** 304,000 $ 7,752 -------------- Total Preferred Stock (Cost $7,600) ($ Thousands) 7,752 -------------- U.S. GOVERNMENT AGENCY OBLIGATIONS (E) -- 2.7% FHLB 4.355%, 12/26/07 $ 2,230 2,223 4.324%, 12/28/07 2,000 1,994 4.311%, 12/05/07 300 300 4.304%, 12/07/07 1,285 1,284 FHLMC 4.759%, 12/07/07 (C) 550 550 FNMA 4.709%, 12/07/07 (C) 14,705 14,698 4.140%, 12/05/07 (C) 220 220 -------------- Total U.S. Government Agency Obligations (Cost $21,264) ($ Thousands) 21,269 -------------- COMMERCIAL PAPER (D) -- 14.0% FINANCIALS -- 14.0% BNP Paribas Finance 4.750%, 12/17/07 13,885 13,857 Bear Stearns 4.723%, 12/07/07 7,390 7,383 Citigroup Funding 4.550%, 12/06/07 10,000 9,994 General Electric Capital 4.450%, 12/27/07 13,030 12,988 Merrill Lynch 4.880%, 12/19/07 11,845 11,816 Rabobank USA Financial 4.620%, 12/20/07 13,640 13,607 Societe Generale 4.744%, 12/17/07 13,410 13,382 UBS Finance 5.771%, 12/20/07 13,740 13,706 Wells Fargo 4.530%, 12/05/07 12,500 12,494 -------------- Total Commercial Paper (Cost $109,228) ($ Thousands) 109,227 -------------- CASH EQUIVALENT -- 2.9% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%++* 22,989,461 22,989 -------------- Total Cash Equivalent (Cost $22,989) ($ Thousands) 22,989 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 183 SCHEDULE OF INVESTMENTS (Unaudited) Extended Duration Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CERTIFICATES OF DEPOSIT (B) -- 0.2% JPMorgan Chase 8.750%, 02/28/08 $ 691 $ 683 7.590%, 12/28/07 735 704 -------------- Total Certificates of Deposit (Cost $1,392) ($ Thousands) 1,387 -------------- Total Investments -- 88.0% (Cost $706,516) ($ Thousands) $ 686,151 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- NUMBER OF UNREALIZED TYPE OF CONTRACTS EXPIRATION APPRECIATION CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- U.S. Long Treasury Bond 67 Mar-2008 $ 4 ===== A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows: - -------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Fund pays monthly payment of 0.0270% (0.320% per annum) times the notional amount of the ABX.HE.AA 06-1 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Lehman Brothers) 07/25/45 5,300 $ 335 Fund pays monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Citigroup) 05/25/46 1,790 205 Fund pays monthly payment of 0.0370% (0.440% per annum) times the notional amount of the ABX.HE.AA 06-2 Index. Upon a defined credit event, Fund receives the notional amount and delivers the defined deliverable obligation. (Counterparty: Lehman Brothers) 05/25/46 905 176 Fund receives monthly payment of 0.0080% (0.090% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 08/25/37 4,170 (214) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 600 (178) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 605 (207) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Barclays) 08/25/37 650 (189) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 595 (165) - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 08/25/37 1,000 $ (248) Fund receives monthly payment of 0.0130% (0.150% per annum) times the notional amount of the ABX.HE.AA 07-1 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 08/25/37 2,980 (672) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,790 (300) Fund receives monthly payment of 0.3080% (3.690% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 905 (208) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,735 (846) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,030 (112) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,030 (54) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,030 (49) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,030 3 Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 1,120 (389) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 895 (392) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 595 (237) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 01/25/38 5,965 (2,254) - -------------------------------------------------------------------------------- 184 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 600 $ (268) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 2,085 (1,668) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined Lehman Brothers) 01/25/38 3,580 (460) Fund receives monthly payment of 0.4200% (5.000% per annum) times the notional amount of the ABX.HE.BBB 07-2 Index. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 01/25/38 1,520 (211) Fund receives monthly payment of 0.1600% (1.920% per annum) times the notional amount of the ABX.HE.AA 07-2 Index. Upon a defined credit event, Fund pays the notion- al amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 01/25/38 1,190 (473) Fund pays quarterly payment of 0.2440% (0.978% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation.(Counterparty: Citigroup) 12/20/12 825 104 Fund pays quarterly payment of 0.0910% (0.365% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 150 40 Fund pays quarterly payment of 0.0990% (0.398% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Deutsche Bank) 12/20/12 1,000 266 Fund pays quarterly payment of 0.2430% (0.970% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/12 1,000 126 Fund pays quarterly payment of 0.1770% (0.708% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Citigroup) 12/20/12 740 62 Fund pays quarterly payment of 0.2280% (0.913% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 670 85 Fund pays quarterly payment of 0.1740% (0.695% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 1,800 153 Fund pays quarterly payment of 0.2230% (0.890% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 1,100 140 - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 275 $ 73 Fund pays quarterly payment of 0.0790% (0.318% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 7,650 856 Fund pays quarterly payment of 0.0460% (0.185% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 4,300 99 Fund pays quarterly payment of 0.0470% (0.188% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 50 1 Fund pays quarterly payment of 0.1160% (0.463% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 1,000 106 Fund pays quarterly payment of 0.1060% (0.425% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 500 54 Fund pays quarterly payment of 0.2420% (0.968% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Deutsche Bank) 12/20/12 610 77 Fund pays quarterly payment of 0.0970% (0.388% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Lehman Brothers) 12/20/12 200 53 Fund pays quarterly payment of 0.2360% (0.945% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/12 1,000 127 Fund pays quarterly payment of 0.0730% (0.290% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Barclays) 12/20/12 6,500 314 Fund pays quarterly payment of 0.1770% (0.708% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Merrill Lynch) 12/20/12 1,050 88 Fund pays quarterly payment of 0.0570% (0.228% per annum) times the notional amount of Ambac Assurance. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: JPMorgan Chase) 12/20/12 4,300 132 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 185 SCHEDULE OF INVESTMENTS (Unaudited) Extended Duration Fund (Concluded) November 30, 2007 - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Fund pays quarterly payment of 0.1970% (0.788% per annum) times the notional amount of Countrywide Financial, 4.000%, 12/20/07. Upon a defined credit event, Fund will receive the notional amount and deliver the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/07 1,000 $ (6) Fund receives quarterly payment of 0.1880% (0.750% per annum) times the notional amount of Countrywide Financial, 4.000%, 12/20/07. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/07 1,000 (5) --------- $ (6,130) ========= - -------------------------------------------------------------------------------- INTEREST RATE SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Pay fixed rate of 4.524% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/24/17 2,080 $ 178 Pay fixed rate of 4.650% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 05/18/07 3,700 276 Pay fixed rate of 5.000% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/18/07 2,150 88 Pay fixed rate of 5.030% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Merrill Lynch) 10/16/07 2,150 82 Pay fixed rate of 5.050% and receive floating rate, rate based on 5Y5Y Swaption Straddle. (Counterparty: Lehman Brothers) 10/16/07 2,140 91 Receive fixed rate of 4.615% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Morgan Stanley) 12/04/17 23,200 -- Receive fixed rate of 4.911% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 12/04/27 85,000 -- Receive fixed rate of 4.913% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 12/04/27 82,500 -- Receive fixed rate of 4.986% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 10/04/25 17,630 215 Receive fixed rate of 5.048% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 01/04/26 59,690 1,892 Receive fixed rate of 5.060% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: JPMorgan Chase) 12/04/26 28,410 864 Receive fixed rate of 5.060% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 12/04/26 65,000 1,977 Receive fixed rate of 5.064% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 03/02/16 35,640 1,342 Receive fixed rate of 5.095% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: JPMorgan Chase) 03/05/17 15,510 593 Receive fixed rate of 5.103% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Morgan Stanley) 11/02/17 15,300 613 Receive fixed rate of 5.143% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 01/07/25 21,660 970 Receive fixed rate of 5.144% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 02/02/26 28,000 1,241 Receive fixed rate of 5.216% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 04/04/25 49,000 1,986 - ------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - ------------------------------------------------------------------------------------------------- Receive fixed rate of 5.216% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 04/04/25 50,000 $ 2,026 Receive fixed rate of 5.216% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Deutsche Bank) 04/04/25 43,000 1,742 Receive fixed rate of 5.233% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 03/02/27 58,600 2,320 Receive fixed rate of 5.234% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: JPMorgan Chase) 03/02/27 50,000 1,989 Receive fixed rate of 5.243% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 11/03/25 51,820 2,285 Receive fixed rate of 5.244% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 11/03/25 51,820 2,278 Receive fixed rate of 5.289% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 10/03/26 25,615 1,242 Receive fixed rate of 5.328% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Morgan Stanley) 11/02/07 66,200 3,567 Receive fixed rate of 5.329% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 11/02/27 70,000 3,781 Receive fixed rate of 5.364% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 05/02/27 21,440 1,255 Receive fixed rate of 5.371% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 04/03/27 20,800 1,224 Receive fixed rate of 5.399% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 09/05/26 22,460 1,362 Receive fixed rate of 5.423% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 10/27/27 60,000 3,937 Receive fixed rate of 5.425% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: JPMorgan Chase) 10/02/27 59,650 3,929 Receive fixed rate of 5.445% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Merrill Lynch) 09/04/27 39,000 2,608 Receive fixed rate of 5.505% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Citigroup) 08/02/17 15,640 1,346 Receive fixed rate of 5.596% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 06/04/27 24,900 2,499 Receive fixed rate of 5.634% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 07/05/17 18,060 262 Receive fixed rate of 5.652% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 08/02/26 14,135 1,530 Receive fixed rate of 5.670% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Lehman Brothers) 08/03/27 15,220 1,700 Receive fixed rate of 5.683% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Salomon Brothers) 08/02/27 65,000 7,366 Receive fixed rate of 5.685% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 08/02/27 63,940 7,267 Receive fixed rate of 5.770% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Barclays Capital) 07/05/27 22,200 2,763 Receive fixed rate of 5.778% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 07/05/27 57,000 7,154 Receive fixed rate of 5.807% and pay floating rate, rate based on 3 Month LIBOR. (Counterparty: Credit Suisse First Boston) 07/05/26 6,065 774 --------- $ 80,614 ========= - -------------------------------------------------------------------------------- 186 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $780,103 ($ Thousands). * Rate shown is the 7-day effective yield as of November 30, 2007. ** Non-income producing security. + Real Estate Investment Trust ++ Investment in Affiliated Security (see Note 3). (A) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (B) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (C) Security, or portion thereof, has been pledged as collateral on open futures contracts. (D) The rate reported is the effective yield at time of purchase. (E) Zero coupon security. The rate reported on the Schedule of Investments is the effective yield at time of purchase. (F) The note accrues 12.50% annual coupon for any day that the 5-year swap rate exceeds the 2-year swap rate by 30 or more basis points. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. ARM -- Adjustable Rate Mortgage Cl -- Class CDO -- Collateralized Debt Obligation CMO -- Collateralized Mortgage Obligation FHLB -- Federal Home Loan Bank FHLMC -- Federal Home Loan Mortgage Corporation FNMA -- Federal National Mortgage Association GNMA -- Government National Mortgage Association IO -- Interest Only LIBOR -- London InterBank Offering Rate LLC -- Limited Liability Company L.P. -- Limited Partnership MTN -- Medium Term Note NIM -- Net Interest Margin Ser -- Series Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 187 SCHEDULE OF INVESTMENTS (Unaudited) Emerging Markets Debt Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] Sovereign 77.4% Short-Term Investments 6.7% Financials 4.1% U.S. Treasury Obligations 3.5% Deposits to Counterparty as Collateral for Swap Contracts 3.0% Energy 2.4% Utilities 0.9% Loan Participations 0.8% Industrials 0.7% Telecommunication Services 0.5% Warrants 0.0% +++ Percentages based on total investments. Includes investments held as collateral for securities on loan (see Note 9). - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- GLOBAL BONDS -- 85.4% ARGENTINA -- 7.6% Alto Parana (A) 6.375%, 06/09/17 370 $ 385 Cia Transporte Energia Registered (A) 8.875%, 12/15/16 390 332 Province Del Neuquen (A) 8.656%, 10/18/14 230 230 Province of Buenos Aires (A) 9.625%, 04/18/28 1,760 1,443 Province of Buenos Aires Registered 9.625%, 04/18/28 1,035 828 9.375%, 09/14/18 440 363 2.000%, 05/15/35 (G) 1,100 407 Province of Mendoza Registered 5.500%, 09/04/18 373 269 Republic of Argentina 10.250%, 01/26/07 (H) EUR 850 435 9.000%, 11/19/08 (H) EUR 1,000 237 9.000%, 05/29/09 (H) EUR 1,375 666 8.982%, 12/15/35 (B) 1,600 182 8.500%, 07/01/04 (H) EUR 4,300 2,102 8.280%, 12/31/33 (C) 22,066 21,294 8.125%, 04/21/08 (H) EUR 2,000 974 7.820%, 12/31/33 214 258 7.466%, 12/15/35 (B) 11,130 1,424 7.000%, 09/12/13 3,650 3,175 7.000%, 10/03/15 4,725 3,827 7.000%, 04/17/17 1,570 1,230 5.830%, 12/31/33 (B) 1,950 713 5.389%, 08/03/12 (B) 22,120 12,421 1.330%, 12/31/38 (G) 34,285 14,743 0.000%, 12/19/08 (H) 2,000 710 0.000%, 09/19/27 (H) 1,550 564 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Republic of Argentina MTN, Ser E (H) 10.000%, 01/07/05 EUR 1,650 $ 825 9.250%, 07/20/04 EUR 2,100 999 8.750%, 02/04/49 EUR 4,725 2,289 7.000%, 03/18/49 EUR 2,300 1,138 Transportadora Gas Norte (A) (G) 7.500%, 12/31/12 210 184 6.500%, 12/31/12 37 31 Transportadora Gas Norte Registered (G) 7.500%, 12/31/12 100 87 6.500%, 12/31/12 79 69 6.500%, 12/31/12 85 74 -------------- 74,908 -------------- BAHAMAS -- 0.1% Banco Votorantim Nassau (A) 10.625%, 04/10/14 2,300 1,205 -------------- BELIZE -- 0.0% Government of Belize Registered (G) 4.250%, 02/20/29 330 247 -------------- BERMUDA -- 0.1% Citic Resources Finance (A) 6.750%, 05/15/14 250 232 Digicel Group (A) 8.875%, 01/15/15 450 403 -------------- 635 -------------- BOSNIA-HERZEGOVINA -- 0.1% Republic of Bosnia & Herzegovina, Ser B (E) 10.039%, 12/11/17 EUR 2,000 1,051 -------------- BRAZIL -- 11.9% Cesp-Comp Ener Sao Paulo (A) 9.750%, 01/15/15 BRL 1,050 636 Federal Republic of Brazil 12.500%, 01/05/22 BRL 24,155 14,604 11.000%, 08/17/40 25,200 33,844 10.250%, 01/10/28 14,750 7,502 10.125%, 05/15/27 2,900 4,118 8.875%, 10/14/19 200 250 8.750%, 02/04/25 5,893 7,543 8.250%, 01/20/34 4,285 5,463 8.000%, 01/15/18 10,950 12,286 7.125%, 01/20/37 (C) 26,655 30,413 6.000%, 01/17/17 1,150 1,175 -------------- 117,834 -------------- - -------------------------------------------------------------------------------- 188 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- CAYMAN ISLANDS -- 0.6% Banco Safra (A) 10.875%, 04/03/17 2,250 $ 1,165 Blue City Investments 13.750%, 11/07/13 500 501 Earls Eight (A) (G) 7.500%, 12/31/12 350 306 Interoceanica IV Finance (A) (E) 3.818%, 11/30/25 800 382 3.645%, 11/30/18 370 240 Peru Enhanced Pass-Thru (A) (E) 5.897%, 05/31/25 250 98 3.942%, 05/31/18 1,175 811 Petrobras International Finance 5.875%, 03/01/18 2,220 2,270 Vale Overseas 6.875%, 11/21/36 185 192 6.250%, 01/23/17 70 71 -------------- 6,036 -------------- CHILE -- 0.6% Codelco 5.500%, 10/15/13 575 587 Republic of Chile 5.500%, 01/15/13 5,379 5,585 -------------- 6,172 -------------- COLOMBIA -- 5.1% BanColombia (E) 6.875%, 05/25/17 365 345 Bogota Distrio Capital (A) 9.750%, 07/26/28 1,629,000 763 EEB International (A) 8.750%, 10/31/14 320 324 Republic of Colombia 11.750%, 02/25/20 6,233 9,240 10.750%, 01/15/13 840 1,031 10.375%, 01/28/33 865 1,293 9.850%, 06/28/27 COP 10,423,000 5,137 8.375%, 02/15/27 3,100 3,759 8.250%, 12/22/14 3,220 3,671 8.125%, 05/21/24 10,055 11,915 7.375%, 01/27/17 6,135 6,792 7.375%, 09/18/37 4,905 5,518 6.678%, 02/16/08 (B) 225 232 -------------- 50,020 -------------- CYPRUS -- 0.4% ABH Financial (A) 8.200%, 06/25/12 900 820 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Springvale Holdings (B) 11.389%, 09/07/08 1,000 $ 1,000 Teorema Holding 11.000%, 10/27/09 1,400 1,400 Teorema Holding (G) 9.000%, 10/27/08 600 588 -------------- 3,808 -------------- DOMINICAN REPUBLIC -- 0.2% Republic of Dominican Republic 9.040%, 01/23/18 410 462 8.625%, 04/20/27 1,150 1,331 -------------- 1,793 -------------- ECUADOR -- 1.3% Republic of Ecuador Registered 10.000%, 02/15/08 (G) 11,025 10,529 9.375%, 12/15/15 1,960 1,970 -------------- 12,499 -------------- EGYPT -- 0.1% Arab Republic of Egypt (A) 8.750%, 07/18/12 7,640 1,434 -------------- EL SALVADOR -- 1.9% Republic of El Salvador 8.250%, 04/10/32 6,090 7,399 7.750%, 01/24/23 1,760 2,029 7.650%, 06/15/35 4,144 4,786 7.650%, 06/15/35 3,950 4,562 -------------- 18,776 -------------- GHANA -- 0.1% Republic of Ghana (A) 8.500%, 10/04/17 1,050 1,100 -------------- INDIA -- 0.0% ICICI Bank (A) 6.625%, 10/03/12 300 309 -------------- INDONESIA -- 2.3% BLT Finance 7.500%, 05/15/14 280 243 Excelcomindo Finance 7.125%, 01/18/13 105 110 Government of Indonesia 10.000%, 07/15/17 IDR 20,524,525 2,148 Indosat Finance 7.125%, 06/22/12 1,000 994 - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 189 SCHEDULE OF INVESTMENTS (Unaudited) Emerging Markets Debt Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Republic of Indonesia 8.500%, 10/12/35 1,260 $ 1,471 7.500%, 01/15/16 3,640 3,905 7.500%, 01/15/16 (A) 2,200 2,354 7.250%, 04/20/15 665 700 7.250%, 04/20/15 (A) 3,470 3,656 6.875%, 03/09/17 620 646 6.750%, 03/10/14 2,760 2,832 6.625%, 02/17/37 2,550 2,404 6.625%, 02/17/37 (A) 1,625 1,552 -------------- 23,015 -------------- IRAQ -- 0.7% Republic of Iraq 5.800%, 01/15/28 10,875 6,906 -------------- IRELAND -- 0.1% Dal Capital (Vneshtorgbk) 7.000%, 04/13/09 RUB 18,000 731 Transcapit (Transneft) (A) 6.103%, 06/27/12 600 624 -------------- 1,355 -------------- JERSEY -- 0.3% Aldar Funding 5.767%, 11/10/11 850 1,368 UBS Jersey Branch MTN (A) (B) 0.787%, 11/01/13 1,180 1,325 -------------- 2,693 -------------- LEBANON -- 0.1% Lebanese Republic Registered 8.250%, 04/12/21 760 692 -------------- LUXEMBOURG -- 1.3% Alfa Dividend Payment Rights Finance (A) (B) 7.260%, 12/15/07 447 430 Gaz Capital for Gazprom Registered 9.625%, 03/01/13 1,100 1,259 8.625%, 04/28/34 5,150 6,438 Kuznetski (Bank of Moscow) (G) 7.500%, 11/25/15 1,300 1,267 RSHB Captl 7.175%, 05/16/13 250 257 6.299%, 05/15/17 (A) 2,320 2,177 UBS (Vimpelcom) 8.250%, 05/23/16 490 496 8.250%, 05/23/16 200 203 -------------- 12,527 -------------- - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- MALAYSIA -- 2.5% Bank Negara Monetary Note (E) 3.184%, 04/03/08 MYR 10,290 $ 3,022 Government of Malaysia 7.500%, 07/15/11 5,795 6,355 3.814%, 02/15/17 4,810 1,410 Government of Malaysia 3.502%, 05/31/27 MYR 17,500 4,529 Penerbangan Malaysia Registered 5.625%, 03/15/16 2,600 2,738 Petronas Capital Registered 7.875%, 05/22/12 900 1,136 7.875%, 05/22/22 4,390 5,569 -------------- 24,759 -------------- MEXICO -- 3.8% Mexican Bonos, Ser M10 8.000%, 12/19/13 MXP 37,423 3,450 8.000%, 12/17/15 MXP 24,000 2,210 7.250%, 12/15/16 MXP 14,533 1,272 Pemex Project Funding Master Trust 6.625%, 06/15/35 400 423 5.750%, 03/01/18 1,165 1,172 United Mexican States 8.125%, 12/30/19 725 885 7.500%, 04/08/33 1,580 1,904 5.625%, 01/15/17 6,424 6,514 United Mexican States MTN 8.300%, 08/15/31 5,435 7,100 United Mexican States MTN, Ser A 6.750%, 09/27/34 11,058 12,374 United Mexican States MTN, Ser E 0.006%, 05/08/17 EUR 5,000 5 -------------- 37,309 -------------- NETHERLANDS -- 0.8% HSBK Europe (A) 7.250%, 05/03/17 300 257 ING Bank MTN, Ser E 9.625%, 05/30/08 600 583 Kazkommerts International (A) 7.500%, 11/29/16 400 300 Kazkommerts International Registered 7.500%, 11/29/16 800 600 Lukoil International Finance (A) 6.656%, 06/07/22 405 379 - -------------------------------------------------------------------------------- 190 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Majapahit Holding (A) 7.875%, 06/29/37 615 $ 584 7.750%, 10/17/16 1,300 1,287 7.750%, 10/17/16 200 199 7.250%, 06/28/17 840 798 Majapaht Holding (A) 7.250%, 10/17/11 885 876 TGI International (A) 9.500%, 10/03/17 620 634 White Nights Belagroprom Bank (B) 8.284%, 12/15/07 1,010 1,479 -------------- 7,976 -------------- NIGERIA -- 0.2% HSBC Bank MTN 10.500%, 07/28/08 223,125 1,887 -------------- PAKISTAN -- 0.3% Pakistan Mobile Communications (A) 8.625%, 11/13/13 330 305 Republic of Pakistan 7.875%, 03/31/36 320 284 7.125%, 03/31/16 115 100 7.125%, 03/31/16 (A) 1,150 1,041 6.875%, 06/01/17 1,100 963 -------------- 2,693 -------------- PANAMA -- 2.3% Republic of Panama 9.375%, 01/16/23 595 780 9.375%, 04/01/29 1,795 2,446 8.875%, 09/30/27 4,400 5,687 8.125%, 04/28/34 940 1,137 7.250%, 03/15/15 (C) 7,700 8,489 6.700%, 01/26/36 4,410 4,644 -------------- 23,183 -------------- PERU -- 2.9% Banco Credita Del Peru (A) (B) 7.170%, 10/15/22 PEI 1,750 589 Republic of Peru 8.750%, 11/21/33 1,180 1,558 8.375%, 05/03/16 1,000 1,168 7.350%, 07/21/25 10,680 12,175 6.900%, 08/12/37 (A) 2,500 867 6.550%, 03/14/37 400 416 Republic of Peru FLIRB, Ser 20YR (B) 6.438%, 03/07/17 2,527 2,521 6.143%, 03/07/08 7,891 7,872 6.143%, 03/07/08 1,953 1,948 -------------- 29,114 -------------- - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- PHILIPPINES -- 7.4% DMCI Water (I) 0.000%, 12/31/09 1,492 $ 1,492 National Power 9.625%, 05/15/28 1,100 1,335 6.875%, 11/02/16 (A) 870 881 Republic of Philippines 10.625%, 03/16/25 5,050 7,221 9.875%, 01/15/19 500 642 9.500%, 10/21/24 200 259 9.500%, 02/02/30 10,675 14,198 9.375%, 01/18/17 11,140 13,535 9.000%, 02/15/13 500 566 8.250%, 01/15/14 (C) 4,060 4,530 8.000%, 01/15/16 7,080 7,930 7.750%, 01/14/31 (C) 9,071 10,250 7.500%, 09/25/24 (C) 8,059 8,865 6.375%, 01/15/32 (C) 1,975 1,931 -------------- 73,635 -------------- POLAND -- 0.2% Republic of Poland 5.000%, 10/19/15 1,655 1,686 -------------- RUSSIA -- 10.1% Kazan Orgsintez 9.250%, 10/30/11 330 325 Orient Express Finance 9.875%, 07/02/09 RUB 15,000 570 Russian Federation Registered 12.750%, 06/24/28 12,475 22,661 7.500%, 03/31/30 (G) 67,048 76,106 VTB Capital 6.609%, 10/31/12 800 793 -------------- 100,455 -------------- SOUTH AFRICA -- 0.5% Republic of South Africa 6.500%, 06/02/14 3,300 3,514 5.875%, 05/30/22 1,355 1,371 -------------- 4,885 -------------- SOUTH KOREA -- 0.1% Shinhan Bank (B) 6.819%, 09/20/36 590 554 Woori Bank 6.208%, 05/02/37 560 494 -------------- 1,048 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 191 SCHEDULE OF INVESTMENTS (Unaudited) Emerging Markets Debt Fund (Continued) November 30, 2007 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- SRI LANKA -- 0.0% Republic of Sri Lanka (A) 8.250%, 10/24/12 170 $ 159 -------------- SUPRA-NATIONAL -- 0.3% European Investment Bank 10.000%, 01/28/11 3,630 2,789 -------------- THAILAND -- 0.3% True Move (A) 10.750%, 12/16/13 850 890 10.375%, 08/01/14 1,700 1,700 -------------- 2,590 -------------- TUNISIA -- 0.1% Banque Centrale de Tunisie 8.250%, 09/19/27 420 524 7.375%, 04/25/12 525 569 -------------- 1,093 -------------- TURKEY -- 5.7% Republic of Turkey 14.000%, 01/19/11 (E) 460 388 11.875%, 01/15/30 4,145 6,549 11.000%, 01/14/13 990 1,211 10.000%, 02/15/12 550 509 9.500%, 01/15/14 1,085 1,275 8.000%, 02/14/34 1,300 1,456 7.375%, 02/05/25 10,960 11,659 7.250%, 03/15/15 5,040 5,380 7.000%, 09/26/16 (C) 5,760 6,048 7.000%, 06/05/20 2,700 2,798 6.875%, 03/17/36 13,320 13,087 6.750%, 04/03/18 5,600 5,719 -------------- 56,079 -------------- UKRAINE -- 2.1% Government of Ukraine Registered 7.650%, 06/11/13 (C) 5,940 6,252 6.875%, 03/04/11 (A) 3,825 3,873 6.875%, 03/04/11 400 409 6.580%, 11/21/16 9,555 9,407 Naftogaz Ukrainy 8.125%, 09/30/09 600 525 -------------- 20,466 -------------- UNITED KINGDOM -- 0.5% Barclays Bank (A) (B) 0.000%, 07/17/22 674 714 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Credit Suisse First Boston International (Export/Import - Ukraine) 7.650%, 09/07/11 500 $ 500 6.800%, 10/04/12 550 530 Credit Suisse First Boston for the City of Kiev 8.000%, 11/06/15 750 735 HSBC (Ukrsibbank) 7.750%, 12/21/11 400 393 Standard Bank (A) 15.000%, 03/12/12 446 403 Standard Bank MTN, Ser E (B) 0.000%, 07/20/09 509 528 UK Private Bank (A) 8.000%, 02/06/12 800 716 -------------- 4,519 -------------- UNITED STATES -- 0.3% Citigroup Funding 10.000%, 01/03/17 (B) 1,496 1,553 6.000%, 05/18/15 (A) 700 733 DST 10.750%, 05/22/09 1,100 1,100 -------------- 3,386 -------------- URUGUAY -- 3.7% Republic of Uruguay 9.250%, 05/17/17 7,550 9,041 8.000%, 11/18/22 12,487 14,048 7.625%, 03/21/36 535 587 7.500%, 03/15/15 1,900 2,043 7.250%, 04/05/27 10,525 477 5.000%, 09/14/18 UYU 19,100 1,014 3.700%, 06/26/37 UYU 125,904 5,154 Republic of Uruguay PIK 7.875%, 01/15/33 2,700 3,044 7.875%, 01/15/33 1,200 1,353 -------------- 36,761 -------------- VENEZUELA -- 6.0% Government of Venezuela 13.625%, 08/15/18 1,200 1,512 10.750%, 09/19/13 400 423 9.375%, 01/13/34 12,100 11,900 9.250%, 09/15/27 30,470 30,135 8.500%, 10/08/14 3,960 3,723 7.650%, 04/21/25 735 623 6.000%, 12/09/20 3,450 2,570 5.750%, 02/26/16 5,900 4,543 - -------------------------------------------------------------------------------- 192 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Government of Venezuela Registered 7.000%, 12/01/18 500 $ 419 Petroleos De Venezuela 5.375%, 04/12/27 5,605 3,261 5.250%, 04/12/17 800 549 -------------- 59,658 -------------- VIRGIN ISLANDS -- 0.4% GTL Trade Finance (A) 7.250%, 10/20/17 3,490 3,572 -------------- Total Global Bonds (Cost $835,511) ($ Thousands) 844,717 -------------- DEPOSIT WITH COUNTERPARTY AS COLLATERAL FOR SWAP CONTRACTS (F) -- 3.0% UNITED STATES -- 3.0% Deposits with Barclays as Collateral for Swap Contracts Outstanding AED 20,000 5,445 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding TRY 494 419 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding 600 600 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding 600 600 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding 940 940 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding 940 940 Deposits with Credit Suisse First Boston as Collateral for Swap Contracts Outstanding 2,400 2,400 Deposits with Deutsche Bank as Collateral for Swap Contracts Outstanding IDR 6,122,829 654 Deposits with Goldman Sachs as Collateral for Swap Contracts Outstanding BRL 3,752 2,112 Deposits with HSBC as Collateral for Swap Contracts Outstanding TRY 4,218 3,579 Deposits with JPMorgan Chase as Collateral for Swap Contracts Outstanding 2,992 2,992 Deposits with JPMorgan Chase as Collateral for Swap Contracts Outstanding 1,047 1,047 - -------------------------------------------------------------------------------- Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Deposits with Merrill Lynch as Collateral for Swap Contracts Outstanding 243 $ 243 Deposits with Merrill Lynch as Collateral for Swap Contracts Outstanding 2,200 2,200 Deposits with Standard Bank as Collateral for Swap Contracts Outstanding 4,500 4,500 Deposits with Standard Bank as Collateral for Swap Contracts Outstanding 175 175 Deposits with Standard Bank as Collateral for Swap Contracts Outstanding 72 72 Deposits with UBS as Collateral for Swap Contracts Outstanding NGN 44,062 373 -------------- Total Deposit with Counterparty as Collateral for Swap Contracts (Cost $28,568) ($ Thousands) 29,291 -------------- LOAN PARTICIPATIONS -- 1.1% EGYPT -- 0.2% Egyptian Urea Petrochemical 0.000%, 07/01/17 1,750 1,750 -------------- GERMANY -- 0.1% Rike 0.000%, 08/17/11 1,200 1,200 -------------- TURKEY -- 0.8% Cukurova, Ser A 0.000%, 05/01/08 4,450 4,338 Cukurova, Ser B 0.000%, 05/01/12 3,850 3,754 -------------- 8,092 -------------- UNITED STATES -- 0.0% Baja Ferries 5.100%, 01/26/17 314 314 -------------- Total Loan Participations (Cost $11,563) ($ Thousands) 11,356 -------------- CORPORATE OBLIGATIONS (D) -- 0.1% UNITED STATES -- 0.1% SLM MTN 4.660%, 12/17/07 1,195 1,195 -------------- Total Corporate Obligations (Cost $1,195) ($ Thousands) 1,195 -------------- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 193 SCHEDULE OF INVESTMENTS (Unaudited) Emerging Markets Debt Fund (Concluded) November 30, 2007 - -------------------------------------------------------------------------------- Shares/Face Amount(1) Market Value Description (Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Number of Warrants --------- WARRANTS -- 0.0% CYPRUS -- 0.0% Teorema Holding, Expires 10/27/09* -- $ 139 -------------- Total Warrants (Cost $47) ($ Thousands) 139 -------------- CASH EQUIVALENT (D) -- 6.7% UNITED STATES -- 6.7% SEI Liquidity Fund, L.P., 5.110%**+ (D) 66,287,000 66,287 -------------- Total Cash Equivalents (Cost $66,287) ($ Thousands) 66,287 -------------- U.S. TREASURY OBLIGATION -- 3.5% UNITED STATES -- 3.5% U.S. Treasury Note 4.875%, 08/31/08 34,055 34,419 -------------- Total U.S. Treasury Obligation (Cost $34,227) ($ Thousands) 34,419 -------------- Total Investments -- 99.8% (Cost $977,398) ($ Thousands) $ 987,404 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (See Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - -------------------------------------------------------------------------------- U.S. Long Treasury Bond 10 Dec-2007 $ 60 U.S. Long Treasury Bond 19 Mar-2008 (10) -------------- $ 50 ============== A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY CURRENCY APPRECIATION MATURITY TO DELIVER TO RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------- 12/04/07-01/03/08 BRL 43,252 USD 24,550 $ 219 2/28/08 TRY 3,227 USD 2,583 (93) 1/8/08 PLZ 5,719 USD 2,300 (25) 1/17/08 EUR 6,290 USD 8,956 (284) 1/07/08-04/07/08 KRW 3,821,160 USD 4,146 (46) 4/9/08 KZT 390,773 USD 3,140 (9) 12/26/07-04/01/08 USD 4,200 AED 15,349 70 1/07/08-04/07/08 USD 4,200 KRW 3,821 (9) 1/21/08 USD 1,200 PHP 52,848 34 01/18/07-03/26/08 USD 16,519 PLZ 43,354 1,088 01/22/08-02/04/08 USD 8,600 SGD 12,515 92 12/4/07 USD 16,039 BRL 28,285 (123) 1/25/08 USD 3,000 INR 119,370 8 1/10/08 USD 150 NGN 19,272 12 02/18/07-01/25/08 USD 3,771 RUB 95,127 115 01/14/08-01/31/08 USD 7,650 HUF 1,351 165 2/28/08 USD 2,030 TRY 2,536 72 -------------- $ 1,286 ============= A summary of outstanding swap agreements held by the Fund at November 30, 2007, is as follows: - -------------------------------------------------------------------------------- TOTAL RETURN SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund receives payment at maturity on the Brazilian CDI Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Merrill Lynch) 08/15/10 BRL 400 $ 53 Fund receives payment at maturity on the Brazilian CDI Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 08/15/10 BRL 4,450 544 Fund receives payment at maturity on the Brazilian CDI Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: JPMorgan Chase) 05/15/11 BRL 1,577 157 Fund receives payment at maturity on the Brazilian CDI Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Goldman Sachs) 01/01/17 BRL 3,700 (256) Fund receives payment at maturity on the Gazprom times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Standard Bank) 05/17/08 4,500 -- Fund receives payment at maturity on the Government of Indonesia 12.000%, 09/15/11, times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Deutsche Bank) 09/15/11 IDR 5,400,000 (25) Fund receives payment at maturity on Jafz Sukuk 11/27/12. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Barclays) 11/27/12 AED 20,000 -- Fund receives payment at maturity on the Nigerian NGN Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Standard Bank) 01/04/08 NGN 24,630 18 Fund receives payment at maturity on the Nigerian NGN Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: Standard Bank) 12/16/08 NGN 9,152 7 Fund receives payment at maturity on the Nigerian Treasury Bond 9.350%, 08/31/17 times the notional amount. Fund receives payment if the return on the spread appreci- ates over the payment period and pays if the return on the spread depreciates over the payment period. (Counterparty: UBS) 08/31/17 NGN 48,340 -- Fund receives payment at maturity on Osjc Zaporozh Term Loan Reference Obligation. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreci- ates over the payment period. (Counterparty: Merrill Lynch) 10/31/20 2,200 -- Fund receives payment at maturity on the Turkish TRY Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreci- ates over the payment period. (Counterparty: Credit Suisse First Boston) 03/07/12 TRY 500 35 - -------------------------------------------------------------------------------- 194 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund receives payment at maturity on the Turkish TRY Index times the notional amount. Fund receives payment if the return on the spread appreciates over the payment period and pays if the return on the spread depreci- ates over the payment period. (Counterparty: HSBC) 03/07/12 TRY 4,350 $ 334 --------- $ 867 ========= - -------------------------------------------------------------------------------- CREDIT DEFAULT SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Fund receives quarterly payment of 0.4000% (1.600% per annum) times the notional amount of JSC Gazprom, 8.625%, 04/28/34. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 08/20/16 600 $ (23) Fund receives semi-annual payment of 2.8750% (5.750% per annum) times the notional amount of Naftogaz Ukrainy, 8.125%, 09/30/09. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/07 940 20 Fund receives semi-annual payment of 2.8750% (5.750% per annum) times the notional amount of Naftogaz Ukrainy, 8.125%, 09/30/09. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/08 940 (36) Fund receives semi-annual payment of 2.8750% (5.750% per annum) times the notional amount of Naftogaz Ukrainy, 8.125%, 09/30/09. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 12/20/09 2,400 (180) Fund receives semi-annual payment of 2.6000% (5.200% per annum) times the notional amount of Naftogaz Ukrainy, 8.125%, 09/30/09. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Credit Suisse First Boston) 02/20/11 600 (77) Fund receives semi-annual payment of 0.8400% (1.680% per annum) times the notional amount of Republic of Turkey, 11.875%, 01/15/30. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Citigroup) 11/20/12 3,800 2 Fund receives semi-annual payment of 0.8100% (1.620% per annum) times the notional amount of Republic of Turkey, 11.875%, 01/15/30. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 02/12/12 4,230 36 Fund receives semi-annual payment of 0.9600% (1.920% per annum) times the notional amount of Republic of Turkey, 11.875%, 01/15/30. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 03/20/12 2,210 40 Fund receives semi-annual payment of 0.5180% (1.035% per annum) times the notional amount of Russian Federatiion, 7.500%, 0./31/30. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: JPMorgan Chase) 09/17/17 10,925 (31) Fund receives quarterly payment of 1.5000% (3.000% per annum) times the notional amount of Republic of Venezuela, 9.250%, 09/15/27. Upon a defined credit event, Fund pays the notional amount and takes receipt of the defined deliverable obligation. (Counterparty: Lehman Brothers) 07/20/17 13,500 (1,609) --------- $ (1,858) ========= - -------------------------------------------------------------------------------- INTEREST RATE SWAPS - -------------------------------------------------------------------------------- NET UNREALIZED NOTIONAL APPRECIATION EXPIRATION AMOUNT (DEPRECIATION) DESCRIPTION DATE (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------------------------------------- Pay fixed rate of 10.630% and receive floating rate, rate based on BRL CDI Index. (Counterparty: Lehman Brothers) 01/02/12 7,200 $ (175) Receive fixed rate of 10.650% and pay floating rate, rate based on BRL CDI Index. (Counterparty: Lehman Brothers) 01/02/12 6,100 (149) Receive fixed rate of 10.880% and pay floating rate, rate based on BRL CDI Index. (Counterparty: Lehman Brothers) 01/02/12 4,400 (96) Receive fixed rate of 11.093% and pay floating rate, rate based on BRL CDI Index. (Counterparty: Lehman Brothers) 01/02/12 11,800 (219) --------- $ (639) ========= Percentages are based on Net Assets of $989,499 ($ Thousands). * Non-Income Producing Security ** Rate shown is the 7-day effective yield as of November 30, 2007. + Investment in Affiliated Security (see Note 3). (1) In U.S. dollars unless otherwise indicated. (A) Securities sold within terms of a private placement memorandum, exempt from registration under Section 144A of the Securities Act of 1933, as amended, and may be sold only to dealers in that program or other "accredited investors." These securities have been determined to be liquid under guidelines established by the Board of Trustees. (B) Variable Rate Security -- The rate reported on the Schedule of Investments is the rate in effect as of November 30, 2007. The date reported on the Schedule of Investments is the next reset date. (C) This security or a partial position of this security is on loan at November 30, 2007 (see Note 9). The total value of securities on loan at November 30, 2007 was $62,632 ($ Thousands). (D) This security was purchased with cash collateral held from securities on loan. The total value of such securities as of November 30, 2007 was $67,482 ($ Thousands). (E) The rate reported is the effective yield at time of purchase. (F) Cash on loan to swap counterparty as collateral for outstanding swap contracts. (G) Step Bonds -- The rate reflected on the Schedule of Investments is the effective yield on November 30, 2007. The coupon on a step bond changes on a specified date. (H) Security in default on interest payments. (I) Securities considered illiquid. The total value of such securities as of November 30, 2007 was $1,492 ($ Thousands) and represented 0.15% of Net Assets. AED -- United Arab Emirates Dirham BRL -- Brazilian Real COP -- Chilean Peso EUR -- Euro FLIRB -- Front Loaded Interest Reduction Bond HUF -- Hungarian Forint IDR -- Indonesian Rupiah L.P. -- Limited Partnership MTN -- Medium Term Note MXP -- Mexican Peso MYR -- Malaysian Ringgit NGN -- Nigerian Naira PEI -- Peruvian Inca PIK -- Payment-in-Kind PLZ -- Polish Zloty RUB -- Russian Ruble Ser -- Series TRY -- New Turkish Lira USD -- U.S. Dollar UYU -- Uruguay Peso Amounts designated as "--" are either $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 195 SCHEDULE OF INVESTMENTS (Unaudited) Real Return Plus Fund November 30, 2007 - -------------------------------------------------------------------------------- SECTOR WEIGHTINGS+++: [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.] U.S. Treasury Obligations 96.5% Short-Term Investments 3.5% +++ Percentages based on total investments. - -------------------------------------------------------------------------------- Face Amount Market Value Description ($ Thousands)/Shares ($ Thousands) - -------------------------------------------------------------------------------- U.S. TREASURY OBLIGATIONS -- 95.3% U.S. Treasury Bills (A) (C) 4.238%, 12/06/07 $ 9,083 $ 9,081 3.761%, 01/17/08 2,348 2,339 U.S. Treasury Bonds (B) 2.500%, 07/15/16 19,069 20,476 2.375%, 04/15/11 28,364 29,576 2.000%, 07/15/14-01/15/16 57,954 59,861 1.875%, 07/15/13-07/15/15 23,001 23,756 0.875%, 04/15/10 30,330 30,238 U.S. Treasury Notes (B) 4.250%, 01/15/10 480 513 3.875%, 01/15/09 11,467 11,852 3.500%, 01/15/11 482 519 3.375%, 01/15/12 8,866 9,675 3.000%, 07/15/12 26,244 28,432 2.625%, 07/15/17 541 589 2.375%, 01/15/17 18,738 19,919 2.000%, 04/15/12-01/15/14 26,550 27,479 1.625%, 01/15/15 26,997 27,184 -------------- Total U.S. Treasury Obligations (Cost $287,358) ($ Thousands) 301,489 -------------- CASH EQUIVALENT -- 3.5% SEI Daily Income Trust, Prime Obligation Fund, Cl A, 5.020%+* 11,056,423 11,056 -------------- Total Cash Equivalent (Cost $11,056) ($ Thousands) 11,056 -------------- Total Investments -- 98.8% (Cost $298,414) ($ Thousands) $ 312,545 ============== A summary of the open futures contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED NUMBER OF APPRECIATION TYPE OF CONTRACTS EXPIRATION (DEPRECIATION) CONTRACT LONG (SHORT) DATE ($ THOUSANDS) - --------------------------------------------------------------------------- Australia 10 Year Bond Index (11) Dec-2007 $ (19) Amsterdam Index 6 Dec-2007 9 CAC40 10 Euro (3) Dec-2007 (11) Canadian 10 Year Bond Index (60) Mar-2008 37 DAX Index (13) Dec-2007 47 Euro-Bond (94) Dec-2007 (157) Euro-Bond (163) Mar-2008 124 Euro-Schatz (97) Mar-2007 25 FTSE 100 Index (10) Dec-2007 28 IBEX 35 Plus Index (29) Dec-2007 27 Hang Seng Index 36 Dec-2007 339 Japan 10 Year Bond Index 35 Dec-2007 440 Long Gilt 10 Year Index (60) Mar-2008 65 Russell Index E-Mini (15) Dec-2007 47 S&P 500 Index 25 Dec-2007 (145) S&P/MIB Index 12 Dec-2007 (115) S&P/TSE 60 Index (36) Dec-2007 40 SPI 200 Index (26) Dec-2007 (40) Topix Index 27 Dec-2007 (10) U.S. 10 Year Treasury Note 188 Dec-2007 (142) U.S. Long Treasury Bond 99 Mar-2008 (47) ------- $ 542 ======= A summary of the outstanding forward foreign currency contracts held by the Fund at November 30, 2007, is as follows (see Note 2 in Notes to Financial Statements): - -------------------------------------------------------------------------------- UNREALIZED CURRENCY CURRENCY APPRECIATION MATURITY TO DELIVER TO RECEIVE (DEPRECIATION) DATE (THOUSANDS) (THOUSANDS) ($ THOUSANDS) - -------------------------------------------------------------------------- 12/18/07 DKK 2,946 USD 560 $ (20) 12/18/07 NOK 29 USD 5 -- 12/18/07 USD 97 NOK 548 2 12/18/07 USD 10,390 SGD 15,594 408 12/19/07 EUR 20,169 USD 28,902 (714) 12/19/07 SGD 156 USD 105 (2) 12/19/07 USD 550 DKK 2,946 30 12/18/07-12/19/07 JPY 3,247,604 USD 29,181 (170) 12/18/07-12/19/07 NZD 35,412 USD 25,955 (1,117) 12/18/07-12/19/07 SEK 85,634 USD 12,372 (140) 12/18/07-12/19/07 USD 23,764 AUD 27,294 352 12/18/07-12/19/07 USD 28,163 CAD 27,655 (484) 12/18/07-12/19/07 USD 34,653 CHF 44,002 1,013 12/18/07-12/19/07 USD 25,441 GBP 13,377 167 12/18/07-03/19/08 USD 29,775 JPY 3,315,242 334 12/18/07-03/19/08 USD 33,294 NZD 45,047 1,120 12/18/07-03/19/08 AUD 27,137 USD 23,929 (10) 12/18/07-03/19/08 CAD 26,430 USD 26,128 (327) 12/18/07-03/19/08 CHF 60,493 USD 52,113 (1,591) 12/18/07-03/19/08 GBP 9,429 USD 19,196 (171) 12/18/07-03/19/08 USD 27,550 EUR 24,386 999 12/18/07-03/19/08 USD 16,085 SEK 112,804 128 --------- $ (193) ========= - -------------------------------------------------------------------------------- 196 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Description - -------------------------------------------------------------------------------- Percentages are based on Net Assets of $316,324 ($ Thousands). * Rate shown is the 7-day effective yield as of November 30, 2007. + Investment in Affiliated Security (see Note 3). (A) The rate reported is the effective yield at time of purchase. (B) Treasury Inflation Index Notes (C) Security, or portion thereof, has been pledged as collateral on open futures contracts. AUD -- Australian Dollar CAD -- Canadian Dollar CHF -- Swiss Franc Cl -- Class DKK -- Danish Krone EUR -- Euro GBP -- British Pound Sterling JPY -- Japanese Yen NOK -- Norwegian Krone NZD -- New Zealand Dollar SEK -- Swedish Krona SGD -- Singapore Dollar USD -- U.S. Dollar Amounts designated as "--" are either $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 197 Statements of Assets and Liabilities ($ Thousands) November 30, 2007 (Unaudited) - -------------------------------------------------------------------------------- LARGE CAP LARGE CAP DIVERSIFIED DISCIPLINED LARGE CAP ALPHA EQUITY FUND FUND FUND - ------------------------------------------------------------------------------------------------------------------------------------ ASSETS: Investments at value+ $ 391,449* $ 445,382 $ 6,798,680* Affiliated investment, at value++ 41,849 79,680 2,299,707 Cash -- 207 4,445 Foreign currency, at value+++ -- -- 1,080 Restricted cash held for swaps -- -- 2,178 Restricted cash held for securities sold short -- 912 -- Receivable for investment securities sold 2,383 447 24,740 Dividends and interest receivable 758 664 15,041 Receivable for fund shares sold 126 225 37,281 Receivable for variation margin 76 711 16,254 Foreign tax reclaim receivable -- -- -- Unrealized gain on foreign spot currency contracts -- -- -- Unrealized gain on forward foreign currency contracts -- -- 659 Prepaid expenses 1 2 8 - ------------------------------------------------------------------------------------------------------------------------------------ Total Assets 436,642 528,230 9,200,073 - ------------------------------------------------------------------------------------------------------------------------------------ LIABILITIES: Payable upon return on securities loaned 31,823 -- 493,645 Payable for fund shares redeemed 147 117 53,975 Payable for investment securities purchased 2,021 281 28,369 Payable for securities sold short # -- 68,029 -- Payable for variation margin -- -- 129 Payable to custodian 372 -- -- Unrealized loss on foreign spot currency contracts -- -- -- Unrealized loss on forward foreign currency contracts -- -- 559 Swap contracts at value++++ -- -- -- Options written, at value+++++ -- -- -- Investment advisory fees payable 79 110 1,194 Trustees fees payable 1 1 11 Chief Compliance Officer fees payable -- -- 2 Accrued expense payable 44 8 234 Accrued foreign capital gains tax on appreciated securities -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ Total Liabilities 34,487 68,546 578,118 - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 402,155 $ 459,684 $ 8,621,955 ==================================================================================================================================== + Cost of investments 319,491 419,480 6,082,954 ++ Cost of affiliated investments 41,849 81,974 2,347,758 +++ Cost of foreign currency -- -- 1,088 ++++ Premiums received -- -- -- +++++ Premiums received -- -- -- # Proceeds from securities sold short -- (71,356) -- * Includes market value of securities on loan 30,978 -- 482,193 NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 431,571 $ 422,990 $ 7,692,966 Undistributed net investment income 1,263 899 21,616 Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency (102,443) 8,725 237,127 Net unrealized appreciation on investments, securities sold short, option contracts and swaptions 71,958 26,935 667,675 Net unrealized appreciation (depreciation) on futures contracts (194) 126 2,169 Net unrealized depreciation on swap contracts -- -- -- Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies -- 9 402 Accumulated foreign capital gains tax on appreciated securities -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 402,155 $ 459,684 $ 8,621,955 ==================================================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 19.81 $ 11.37 $ 13.58 ($402,155,171 / ($459,684,311 / ($8,621,954,535 / 20,295,683 shares) 40,440,171 shares) 634,946,141 shares) ==================================================================================================================================== Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 198 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ------------------------------------------------------------------------------------------------------------------------------------ LARGE CAP SMALL/MID CAP INDEX SMALL CAP EQUITY FUND FUND FUND - ------------------------------------------------------------------------------------------------------------------------------------ ASSETS: Investments at value+ $ 375,556* $ 1,808,030* $ 2,201,834* Affiliated investment, at value++ 45,450 571,387 586,395 Cash 1 3,236 3,229 Foreign currency, at value+++ -- 1,029 41 Restricted cash held for swaps -- -- -- Restricted cash held for securities sold short -- -- -- Receivable for investment securities sold 1,349 14,695 11,123 Dividends and interest receivable 765 1,471 2,381 Receivable for fund shares sold 96 1,182 29,423 Receivable for variation margin 75 169 329 Foreign tax reclaim receivable -- -- 1 Unrealized gain on foreign spot currency contracts -- -- -- Unrealized gain on forward foreign currency contracts -- 6 -- Prepaid expenses -- 2 2 - ------------------------------------------------------------------------------------------------------------------------------------ Total Assets 423,292 2,401,207 2,834,758 - ------------------------------------------------------------------------------------------------------------------------------------ LIABILITIES: Payable upon return on securities loaned 37,727 505,280 528,662 Payable for fund shares redeemed 320 31,434 2,343 Payable for investment securities purchased 103 11,627 37,702 Payable for securities sold short # -- -- -- Payable for variation margin -- -- -- Payable to custodian -- -- -- Unrealized loss on foreign spot currency contracts -- -- 7 Unrealized loss on forward foreign currency contracts -- -- -- Swap contracts at value++++ -- -- -- Options written, at value+++++ -- -- -- Investment advisory fees payable 14 816 892 Trustees fees payable 1 3 2 Chief Compliance Officer fees payable -- -- -- Accrued expense payable 15 78 57 Accrued foreign capital gains tax on appreciated securities -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ Total Liabilities 38,180 549,238 569,665 - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 385,112 $ 1,851,969 $ 2,265,093 ==================================================================================================================================== + Cost of investments 249,917 1,731,582 2,166,197 ++ Cost of affiliated investments 45,450 571,387 586,395 +++ Cost of foreign currency -- 1,023 36 ++++ Premiums received -- -- -- +++++ Premiums received -- -- -- # Proceeds from securities sold short -- -- -- * Includes market value of securities on loan 36,986 484,828 507,766 NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 250,381 $ 1,583,176 $ 2,112,372 Undistributed net investment income 1,457 989 3,419 Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency 7,705 190,744 114,304 Net unrealized appreciation on investments, securities sold short, option contracts and swaptions 125,639 76,448 35,637 Net unrealized appreciation (depreciation) on futures contracts (70) 594 (633) Net unrealized depreciation on swap contracts -- -- -- Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies -- 18 (6) Accumulated foreign capital gains tax on appreciated securities -- -- -- - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 385,112 $ 1,851,969 $ 2,265,093 ==================================================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 130.64 $ 14.75 $ 13.48 ($385,111,733 / ($1,851,968,770 / ($2,265,093,459 / 2,947,869 shares) 125,536,833 shares) 168,049,803 shares) ==================================================================================================================================== - --------------------------------------------------------------------------------------------------------------- INTERNATIONAL WORLD EQUITY EQUITY EX-US FUND FUND - --------------------------------------------------------------------------------------------------------------- ASSETS: Investments at value+ $ 1,618,428* $ 2,932,431* Affiliated investment, at value++ 109,624 184,928 Cash 59,650 62,232 Foreign currency, at value+++ 5,977 15,285 Restricted cash held for swaps -- -- Restricted cash held for securities sold short -- -- Receivable for investment securities sold 44,461 131,422 Dividends and interest receivable 3,339 4,862 Receivable for fund shares sold 384 48,041 Receivable for variation margin 1,811 3,359 Foreign tax reclaim receivable 537 320 Unrealized gain on foreign spot currency contracts 67 69 Unrealized gain on forward foreign currency contracts 6,272 2,259 Prepaid expenses 6 3 - --------------------------------------------------------------------------------------------------------------- Total Assets 1,850,556 3,385,211 - --------------------------------------------------------------------------------------------------------------- LIABILITIES: Payable upon return on securities loaned 104,820 131,608 Payable for fund shares redeemed 8,768 2,951 Payable for investment securities purchased 120,600 309,488 Payable for securities sold short # -- -- Payable for variation margin 2 39 Payable to custodian -- -- Unrealized loss on foreign spot currency contracts 41 32 Unrealized loss on forward foreign currency contracts 7,180 4,966 Swap contracts at value++++ 1,856 3,582 Options written, at value+++++ 56 99 Investment advisory fees payable 449 1,283 Trustees fees payable 3 3 Chief Compliance Officer fees payable 4 4 Accrued expense payable 151 154 Accrued foreign capital gains tax on appreciated securities -- 1,063 - --------------------------------------------------------------------------------------------------------------- Total Liabilities 243,930 455,272 - --------------------------------------------------------------------------------------------------------------- Net Assets $ 1,606,626 $ 2,929,939 =============================================================================================================== + Cost of investments 1,350,536 2,602,776 ++ Cost of affiliated investments 109,624 184,928 +++ Cost of foreign currency 5,890 15,251 ++++ Premiums received 164 409 +++++ Premiums received (4) (8) # Proceeds from securities sold short -- -- * Includes market value of securities on loan 100,027 126,891 NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 1,070,571 $ 2,409,957 Undistributed net investment income 42,449 49,208 Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency 228,150 145,017 Net unrealized appreciation on investments, securities sold short, option contracts and swaptions 267,840 329,564 Net unrealized appreciation (depreciation) on futures contracts 908 3,853 Net unrealized depreciation on swap contracts (2,020) (3,991) Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies (1,272) (2,615) Accumulated foreign capital gains tax on appreciated securities -- (1,054) - --------------------------------------------------------------------------------------------------------------- Net Assets $ 1,606,626 $ 2,929,939 =============================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 14.19 $ 16.41 ($1,606,625,792 / ($2,929,939,426 / 113,219,873 shares) 178,584,619 shares) =============================================================================================================== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 199 Statements of Assets and Liabilities ($ Thousands) November 30, 2007 (Unaudited) - ------------------------------------------------------------------------------------------------------------------------------------ ENHANCED CORE HIGH YIELD INCOME FIXED INCOME BOND FUND FUND FUND - ------------------------------------------------------------------------------------------------------------------------------------ ASSETS: Investments at value+ $ 147,597 $ 7,273,526* $ 1,304,069* Affiliated investment, at value++ 74,222 1,463,521 236,648 Repurchase agreements+ 2,100 401,200 -- Cash 6,274 7,969 -- Foreign currency, at value+++ -- -- -- Restricted cash held for swaps -- 3,590 -- Receivable for investment securities sold 996 531,713 7,815 Dividends and interest receivable 1,064 42,045 28,015 Receivable for fund shares sold 177 11,563 14,358 Receivable for variation margin 53 530 -- Foreign tax reclaim receivable 2 324 82 Unrealized gain on foreign spot currency contracts -- -- -- Unrealized gain on forward foreign currency contracts 1,578 568 -- Swap contracts at value ++++ -- -- -- Prepaid expenses -- 11 3 - ------------------------------------------------------------------------------------------------------------------------------------ Total Assets 234,063 9,736,560 1,590,990 - ------------------------------------------------------------------------------------------------------------------------------------ LIABILITIES: Payable upon return on securities loaned -- 1,312,034 173,630 Payable for fund shares redeemed 1 70,260 2,014 Income distribution payable -- 622 150 Payable for investment securities purchased 6,653 1,692,925 30,867 Payable to custodian -- -- 5,126 Payable for variation margin 46 473 -- Overdraft of Foreign currency, at value+++ -- 1,084 -- Unrealized loss on forward foreign currency contracts 2,061 1,323 -- Swap contracts at value++++ 1,134 38,772 -- Options written, at value+++++ -- 2,289 -- Swaptions## -- 6,797 -- Investment advisory fees payable 74 634 378 Trustees fees payable -- 8 2 Chief Compliance Officer fees payable -- 6 -- Accrued expense payable 8 201 40 - ------------------------------------------------------------------------------------------------------------------------------------ Total Liabilities 9,977 3,127,428 212,207 - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 224,086 $ 6,609,132 $ 1,378,783 ==================================================================================================================================== + Cost of investments and repurchase agreements 154,122 7,599,684 1,363,490 ++ Cost of affiliated investments 76,483 1,463,521 236,648 +++ Cost of foreign currency -- (1,279) -- ++++ Premiums received 14 (28,369) -- +++++ Premiums received -- (2,389) -- ## Premiums received -- (3,050) -- * Includes market value of securities on loan -- 1,182,434 162,416 NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 232,496 $ 6,569,830 $ 1,437,139 Undistributed net investment income (Accumulated net investment loss) 1,249 (1,034) 29 Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency (1,275) (24,781) 1,036 Net unrealized appreciation (depreciation) on investments, securities sold short, option contracts and swaptions (6,686) 71,395 (59,421) Net unrealized appreciation (depreciation) on futures contracts (72) 4,788 -- Net unrealized appreciation (depreciation) on swap contracts (1,148) (10,403) -- Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies (478) (663) -- - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets $ 224,086 $ 6,609,132 $ 1,378,783 ==================================================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 9.54 $ 10.20 $ 9.63 ($224,085,935 / ($6,609,131,731 / ($1,378,783,231 / 23,488,183 shares) 647,708,312 shares) 143,115,523 shares) ==================================================================================================================================== Amounts designated as "--" are $0 or have been rounded to $0. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 200 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------------------------------------- LONG EXTENDED DURATION DURATION FUND FUND - -------------------------------------------------------------------------------------------------------------- ASSETS: Investments at value+ $ 190,160 $ 663,162 Affiliated investment, at value++ 1,367 22,989 Repurchase agreements+ -- -- Cash 657 2,249 Foreign currency, at value+++ -- -- Restricted cash held for swaps -- -- Receivable for investment securities sold 970 273 Dividends and interest receivable 867 2,273 Receivable for fund shares sold -- 62,900 Receivable for variation margin -- -- Foreign tax reclaim receivable -- -- Unrealized gain on foreign spot currency contracts -- -- Unrealized gain on forward foreign currency contracts -- -- Swap contracts at value ++++ 4,334 63,610 Prepaid expenses 1 1 - -------------------------------------------------------------------------------------------------------------- Total Assets 198,356 817,457 - -------------------------------------------------------------------------------------------------------------- LIABILITIES: Payable upon return on securities loaned -- -- Payable for fund shares redeemed -- -- Income distribution payable -- -- Payable for investment securities purchased 2,181 37,092 Payable to custodian -- -- Payable for variation margin 1 141 Overdraft of Foreign currency, at value+++ -- -- Unrealized loss on forward foreign currency contracts -- -- Swap contracts at value++++ -- -- Options written, at value+++++ -- -- Swaptions## -- -- Investment advisory fees payable 28 104 Trustees fees payable -- 1 Chief Compliance Officer fees payable -- -- Accrued expense payable 14 16 - -------------------------------------------------------------------------------------------------------------- Total Liabilities 2,224 37,354 - -------------------------------------------------------------------------------------------------------------- Net Assets $ 196,132 $ 780,103 ============================================================================================================== + Cost of investments and repurchase agreements 196,830 683,527 ++ Cost of affiliated investments 1,367 22,989 +++ Cost of foreign currency -- -- ++++ Premiums received (3,558) (10,874) +++++ Premiums received -- -- ## Premiums received -- -- * Includes market value of securities on loan -- -- NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 201,281 $ 742,309 Undistributed net investment income (Accumulated net investment loss) (783) (1,861) Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency (5,587) (14,468) Net unrealized appreciation (depreciation) on investments, securities sold short, option contracts and swaptions (6,670) (20,365) Net unrealized appreciation (depreciation) on futures contracts (1) 4 Net unrealized appreciation (depreciation) on swap contracts 7,892 74,484 Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies -- -- - -------------------------------------------------------------------------------------------------------------- Net Assets $ 196,132 $ 780,103 ============================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 9.83 $ 10.38 ($196,132,496 / ($780,103,197 / 19,949,585 shares) 75,149,921 shares) ============================================================================================================== - -------------------------------------------------------------------------------------------------------------- EMERGING REAL RETURN MARKETS PLUS DEBT FUND FUND - -------------------------------------------------------------------------------------------------------------- ASSETS: Investments at value+ $ 921,117* $ 301,489 Affiliated investment, at value++ 66,287 11,056 Repurchase agreements+ -- -- Cash 52,367 24 Foreign currency, at value+++ 3,588 -- Restricted cash held for swaps 451 -- Receivable for investment securities sold 6,036 -- Dividends and interest receivable 15,682 2,050 Receivable for fund shares sold 10,947 2,380 Receivable for variation margin -- 656 Foreign tax reclaim receivable 212 -- Unrealized gain on foreign spot currency contracts 45 -- Unrealized gain on forward foreign currency contracts 1,875 4,553 Swap contracts at value ++++ -- -- Prepaid expenses 1 1 - -------------------------------------------------------------------------------------------------------------- Total Assets 1,078,608 322,209 - -------------------------------------------------------------------------------------------------------------- LIABILITIES: Payable upon return on securities loaned 67,482 -- Payable for fund shares redeemed 1,189 319 Income distribution payable -- -- Payable for investment securities purchased 17,712 -- Payable to custodian -- -- Payable for variation margin 32 372 Overdraft of Foreign currency, at value+++ -- 336 Unrealized loss on forward foreign currency contracts 589 4,746 Swap contracts at value++++ 1,630 -- Options written, at value+++++ -- -- Swaptions## -- -- Investment advisory fees payable 423 104 Trustees fees payable 1 -- Chief Compliance Officer fees payable 2 -- Accrued expense payable 49 8 - -------------------------------------------------------------------------------------------------------------- Total Liabilities 89,109 5,885 - -------------------------------------------------------------------------------------------------------------- Net Assets $ 989,499 $ 316,324 ============================================================================================================== + Cost of investments and repurchase agreements 911,111 287,358 ++ Cost of affiliated investments 66,287 11,056 +++ Cost of foreign currency 3,553 (336) ++++ Premiums received -- -- +++++ Premiums received -- -- ## Premiums received -- -- * Includes market value of securities on loan 62,632 -- NET ASSETS: Paid-in-Capital -- (unlimited authorization -- no par value) $ 959,177 $ 289,883 Undistributed net investment income (Accumulated net investment loss) 9,563 8,546 Accumulated net realized gain (loss) on investments, option contracts, swaptions, futures, securities sold short, swap contracts and foreign currency 10,517 3,415 Net unrealized appreciation (depreciation) on investments, securities sold short, option contracts and swaptions 10,006 14,131 Net unrealized appreciation (depreciation) on futures contracts 50 542 Net unrealized appreciation (depreciation) on swap contracts (1,630) -- Net unrealized appreciation (depreciation) on forward foreign currency contracts, foreign currencies and translation of other assets and liabilities denominated in foreign currencies 1,816 (193) - -------------------------------------------------------------------------------------------------------------- Net Assets $ 989,499 $ 316,324 ============================================================================================================== Net Asset Value, Offering and Redemption Price Per Share -- Class A $ 10.73 $ 11.03 ($989,499,295 / ($316,323,813 / 92,226,852 shares) 28,687,146 shares) ============================================================================================================== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 201 Statements of Operations ($ Thousands) For the six month period ended November 30, 2007 (Unaudited) - -------------------------------------------------------------------------------------------------- LARGE CAP LARGE CAP LARGE CAP DIVERSIFIED DISCIPLINED FUND ALPHA FUND EQUITY FUND - -------------------------------------------------------------------------------------------------- INVESTMENT INCOME Dividends $ 4,463 $ 2,985 $ 56,924 Dividends from Affiliated Registered Investment Company(1) 450 670 8,667 Interest Income 46 1,024 22,714 Income from Security Lending 42 -- 161 Less: Foreign Taxes Withheld (7) (6) (2) - -------------------------------------------------------------------------------------------------- Total Investment Income 4,994 4,673 88,464 - -------------------------------------------------------------------------------------------------- EXPENSES: Investment Advisory Fees 1,097 903 16,334 Administration Fees 137 113 2,042 Trustee Fees 3 2 41 Chief Compliance Officer Fees 3 2 30 Custodian/Wire Agent Fees 19 14 214 Professional Fees 10 7 130 Printing Fees 6 4 74 Registration Fees 2 1 23 Interest Expense on Reverse Repurchase Agreements -- -- -- Dividend Expense -- 365 -- Interest Expense on Short Sales -- 171 -- Overdraft Fees -- -- -- Other Expenses 9 4 53 - -------------------------------------------------------------------------------------------------- Total Expenses 1,286 1,586 18,941 - -------------------------------------------------------------------------------------------------- Less: Waiver of Investment Advisory Fees (436) (183) (8,563) Waiver of Administration Fees (137) (113) (2,042) Fees Paid Indirectly(1) (15) -- (1) - -------------------------------------------------------------------------------------------------- Net Expenses 698 1,290 8,335 - -------------------------------------------------------------------------------------------------- NET INVESTMENT INCOME 4,296 3,383 80,129 ================================================================================================== NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Investments 68,276 3,339(2) 48,111(3) Affiliated Investments -- (103) (2,208) Securities Sold Short -- -- -- Futures Contracts 1,229 2,685 45,663 Swap Contracts -- (3,174) (53,336) Foreign Currency Transactions -- -- 722 NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON: Investments (79,112) (22,119) (312,189) Affiliated Investments -- (2,294) (48,050) Securities Sold Short -- 6,545 -- Futures Contracts (815) (6,422) (139,373) Written Options -- -- -- Swap Contracts -- (89) (1,017) Foreign Capital Gains Tax -- -- -- Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currencies -- 9 (631) - -------------------------------------------------------------------------------------------------- NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS $ (6,126) $ (18,240) $ (382,179) ================================================================================================== (1) See Note 3 in the Notes to the Financial Statements. (2) Includes realized loss of $(2,046) ($ Thousands) due to in-kind redemptions (see Note 8). (3) Includes realized loss of $(32,482) ($ Thousands) due to in-kind redemptions (see Note 8). Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 202 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ----------------------------------------------------------------------------------------------------------------------------- LARGE CAP INTERNATIONAL WORLD EQUITY INDEX SMALL CAP SMALL/MID CAP EQUITY EX-US FUND FUND EQUITY FUND FUND FUND - ----------------------------------------------------------------------------------------------------------------------------- INVESTMENT INCOME Dividends $ 3,693 $ 9,978 $ 10,908 $ 16,960 $ 22,540 Dividends from Affiliated Registered Investment Company(1) 200 1,300 1,890 643 1,514 Interest Income 17 213 84 3,656 8,315 Income from Security Lending 30 989 839 839 716 Less: Foreign Taxes Withheld -- (471) (261) (1,082) (1,677) - ----------------------------------------------------------------------------------------------------------------------------- Total Investment Income 3,940 12,009 13,460 21,016 31,408 - ----------------------------------------------------------------------------------------------------------------------------- EXPENSES: Investment Advisory Fees 342 6,512 6,501 4,227 6,782 Administration Fees 101 501 500 419 617 Trustee Fees 2 11 10 9 11 Chief Compliance Officer Fees 2 8 7 6 7 Custodian/Wire Agent Fees 12 67 58 260 449 Professional Fees 7 33 31 28 36 Printing Fees 4 19 18 17 20 Registration Fees 1 6 6 5 7 Interest Expense on Reverse Repurchase Agreements -- -- -- 126 -- Dividend Expense -- -- -- -- -- Interest Expense on Short Sales -- -- -- -- -- Overdraft Fees -- -- -- 35 64 Other Expenses 6 21 16 50 54 - ----------------------------------------------------------------------------------------------------------------------------- Total Expenses 477 7,178 7,147 5,182 8,047 - ----------------------------------------------------------------------------------------------------------------------------- Less: Waiver of Investment Advisory Fees (255) (1,267) (1,637) (1,329) (17) Waiver of Administration Fees (101) (501) (500) (419) (617) Fees Paid Indirectly(1) -- (173) (117) (32) (30) - ----------------------------------------------------------------------------------------------------------------------------- Net Expenses 121 5,237 4,893 3,402 7,383 - ----------------------------------------------------------------------------------------------------------------------------- NET INVESTMENT INCOME 3,819 6,772 8,567 17,614 24,025 ============================================================================================================================= NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Investments 6,911 97,349 38,901 84,960 56,683 Affiliated Investments -- -- -- -- -- Securities Sold Short -- -- -- -- -- Futures Contracts 212 (775) (1,856) (3,090) (4,319) Swap Contracts -- -- -- (21,872) (41,049) Foreign Currency Transactions -- (130) (150) 9,446 21,153 NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON: Investments (20,684) (312,391) (255,488) (87,342) 18,073 Affiliated Investments 1 -- -- -- -- Securities Sold Short -- -- -- -- -- Futures Contracts (625) 12 (4,002) (7,381) (8,795) Written Options -- -- -- (52) (91) Swap Contracts -- -- -- (3,253) (5,350) Foreign Capital Gains Tax -- -- -- 31 (692) Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currencies -- 18 (7) (1,714) (4,211) - ----------------------------------------------------------------------------------------------------------------------------- NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS $ (10,366) $(209,145) $ (214,035) $ (12,653) $ 55,427 ============================================================================================================================= - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 203 Statements of Operations ($ Thousands) For the six month period ended November 30, 2007 (Unaudited) - -------------------------------------------------------------------------------------------- ENHANCED CORE FIXED HIGH YIELD INCOME INCOME BOND FUND FUND FUND - -------------------------------------------------------------------------------------------- INVESTMENT INCOME Dividends $ 9 $ 326 $ 86 Dividends from Affiliated Registered Investment Company(1) 380 2,866 1,946 Interest Income 4,164 163,366 50,653 Income from Security Lending -- 1,530 410 Less: Foreign Taxes Withheld 1 19 (1) - -------------------------------------------------------------------------------------------- Total Investment Income 4,554 168,107 53,094 - -------------------------------------------------------------------------------------------- EXPENSES: Investment Advisory Fees 359 9,254 3,158 Administration Fees 40 1,542 324 Trustee Fees 1 30 6 Chief Compliance Officer Fees 1 21 5 Custodian/Wire Agent Fees 3 190 34 Professional Fees 2 94 20 Printing Fees 1 55 11 Registration Fees 1 18 4 Overdraft Fees -- -- -- Other Expenses 15 48 6 - -------------------------------------------------------------------------------------------- Total Expenses 423 11,252 3,568 - -------------------------------------------------------------------------------------------- Less: Waiver of Investment Advisory Fees (32) (5,391) (978) Waiver of Administration Fees (40) (1,542) (324) - -------------------------------------------------------------------------------------------- Net Expenses 351 4,319 2,266 - -------------------------------------------------------------------------------------------- NET INVESTMENT INCOME 4,203 163,788 50,828 ============================================================================================ NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Investments (180) 11,907 (3,610) Futures Contracts (1,151) 8,694 -- Written Options -- 2,081 -- Swap Contracts (185) 3,299 -- Foreign Currency Transactions 34 (1,016) -- NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON: Investments (4,244) 116,397 (86,872) Affiliated Investments (2,261) -- -- Futures Contracts (131) 10,994 -- Written Options -- 50 -- Written Swaptions -- (4,018) -- Swap Contracts (1,105) (10,260) -- Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currencies (798) (456) -- - -------------------------------------------------------------------------------------------- NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS $ (5,818) $ 301,460 $ (39,654) ============================================================================================ Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 204 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ---------------------------------------------------------------------------------------------------------- LONG EXTENDED EMERGING REAL RETURN DURATION DURATION MARKETS PLUS FUND FUND DEBT FUND FUND - ---------------------------------------------------------------------------------------------------------- INVESTMENT INCOME Dividends $ -- $ -- $ -- $ -- Dividends from Affiliated Registered Investment Company(1) 86 328 -- 213 Interest Income 5,579 14,901 30,456 6,813 Income from Security Lending -- -- 35 -- Less: Foreign Taxes Withheld -- -- (157) -- - ---------------------------------------------------------------------------------------------------------- Total Investment Income 5,665 15,229 30,334 7,026 - ---------------------------------------------------------------------------------------------------------- EXPENSES: Investment Advisory Fees 288 761 3,745 960 Administration Fees 48 127 220 69 Trustee Fees 1 2 4 1 Chief Compliance Officer Fees 1 2 3 1 Custodian/Wire Agent Fees 5 10 52 6 Professional Fees 3 7 13 4 Printing Fees 2 4 8 2 Registration Fees 1 2 3 1 Overdraft Fees -- -- 1 -- Other Expenses 15 18 19 11 - ---------------------------------------------------------------------------------------------------------- Total Expenses 364 933 4,068 1,055 - ---------------------------------------------------------------------------------------------------------- Less: Waiver of Investment Advisory Fees (124) (298) (1,424) (378) Waiver of Administration Fees (48) (127) (220) (69) - ---------------------------------------------------------------------------------------------------------- Net Expenses 192 508 2,424 608 - ---------------------------------------------------------------------------------------------------------- NET INVESTMENT INCOME 5,473 14,721 27,910 6,418 ========================================================================================================== NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Investments (521) 788 (70) (314) Futures Contracts 118 519 275 2,083 Written Options -- -- -- -- Swap Contracts 65 (6,782) 595 -- Foreign Currency Transactions -- -- 2,892 658 NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON: Investments (6,075) (19,283) (17,721) 16,816 Affiliated Investments -- -- -- -- Futures Contracts 2 3 (111) 701 Written Options -- -- -- -- Written Swaptions -- -- -- -- Swap Contracts 12,535 104,191 (3,768) -- Foreign Currency and Translation of Other Assets and Liabilities Denominated in Foreign Currencies -- -- 1,241 (1,171) - ---------------------------------------------------------------------------------------------------------- NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS $ 11,597 $ 94,157 $ 11,243 $ 25,191 ========================================================================================================== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 205 Statements of Changes in Net Assets ($ Thousands) For the period ended November 30, 2007 (Unaudited) and the year ended May 31, 2007 - ------------------------------------------------------------------------------------------------------------- LARGE CAP DIVERSIFIED LARGE CAP FUND ALPHA FUND - ------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/06 6/1/07 6/1/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ------------------------------------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 4,296 $ 11,622 $ 3,383 $ 5,405 Net Realized Gain from Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts 69,505 50,321 2,747(4) 7,794 Net Realized Gain (Loss) on Foreign Currency Transactions -- -- -- -- Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts (79,927) 85,156 (24,379) 53,897 Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions -- -- 9 -- - ------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations (6,126) 147,099 (18,240) 67,096 - ------------------------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (5,110) (12,254) (4,398) (4,339) Net Realized Gains: Class A -- -- -- (2,260) - ------------------------------------------------------------------------------------------------------------- Total Dividends and Distributions (5,110) (12,254) (4,398) (6,599) - ------------------------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 11,102 23,377 107,254 362,896(2) Reinvestment of Dividends & Distributions 5,098 12,156 3,975 5,620 Cost of Shares Redeemed (296,803) (277,601) (82,861)(3) (114,105) - ------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions (280,603) (242,068) 28,368 254,411 - ------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets (291,839) (107,223) 5,730 314,908 - ------------------------------------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 693,994 801,217 453,954 139,046 - ------------------------------------------------------------------------------------------------------------- END OF PERIOD $ 402,155 $ 693,994 $ 459,684 $ 453,954 ============================================================================================================= Undistributed Net Investment Income Included in Net Assets at Period End $ 1,263 $ 2,077 $ 899 $ 1,914 ============================================================================================================= (1) See Note 4 in the Notes to Financial Statements for additional information. (2) Includes subscriptions as a result of an in-kind transfers of securities (see Note 8). (3) Includes redemptions as a result of in-kind transfer of securities (see Note 8). (4) Includes realized loss of $(2,046) ($ Thousands) due to in-kind redemptions (see Note 8). (5) Includes realized loss of $(32,482) ($ Thousands) due to in-kind redemptions (see Note 8). Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 206 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ------------------------------------------------------------------------------------------------------------------ LARGE CAP DISCIPLINED LARGE CAP EQUITY FUND INDEX FUND - ------------------------------------------------------------------------------------------------------------------ 6/1/07 6/1/06 6/1/07 6/1/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ------------------------------------------------------------------------------------------------------------------ OPERATIONS: Net Investment Income $ 80,129 $ 155,602 $ 3,819 $ 7,154 Net Realized Gain from Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts 38,230(5) 321,815 7,123 3,785 Net Realized Gain (Loss) on Foreign Currency Transactions 722 66 -- -- Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts (500,629) 897,982 (21,308) 68,328 Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions (631) 1,086 -- -- - ------------------------------------------------------------------------------------------------------------------ Net Increase (Decrease) in Net Assets Resulting from Operations (382,179) 1,376,551 (10,366) 79,267 - ------------------------------------------------------------------------------------------------------------------ DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (92,823) (145,402) (3,666) (7,315) Net Realized Gains: Class A -- (224,544) -- (2,519) - ------------------------------------------------------------------------------------------------------------------ Total Dividends and Distributions (92,823) (369,946) (3,666) (9,834) - ------------------------------------------------------------------------------------------------------------------ CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 1,829,465(2) 2,619,199(2) 11,333 34,661 Reinvestment of Dividends & Distributions 91,925 366,050 3,435 9,512 Cost of Shares Redeemed (657,645)(3) (1,097,058) (32,557) (63,757) - ------------------------------------------------------------------------------------------------------------------ Increase (Decrease) in Net Assets Derived from Class A Transactions 1,263,745 1,888,191 (17,789) (19,584) - ------------------------------------------------------------------------------------------------------------------ Net Increase (Decrease) in Net Assets 788,743 2,894,796 (31,821) 49,849 - ------------------------------------------------------------------------------------------------------------------ NET ASSETS: BEGINNING OF PERIOD 7,833,212 4,938,416 416,933 367,084 - ------------------------------------------------------------------------------------------------------------------ END OF PERIOD $ 8,621,955 $ 7,833,212 $ 385,112 $ 416,933 ================================================================================================================== Undistributed Net Investment Income Included in Net Assets at Period End $ 21,616 $ 34,310 $ 1,457 $ 1,304 ================================================================================================================== - --------------------------------------------------------------------------------- SMALL CAP FUND - --------------------------------------------------------------------------------- 6/1/07 6/1/06 to 11/30/07 to 5/31/07 - --------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 6,772 $ 13,203 Net Realized Gain from Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts 96,574 188,753 Net Realized Gain (Loss) on Foreign Currency Transactions (130) (16) Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Securities Sold Short, Written Options, Futures Contracts and Swap Contracts (312,379) 174,796 Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions 18 -- - --------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations (209,145) 376,736 - --------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (7,227) (15,831) Net Realized Gains: Class A -- (234,693) - --------------------------------------------------------------------------------- Total Dividends and Distributions (7,227) (250,524) - --------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 56,491 231,295 Reinvestment of Dividends & Distributions 6,880 240,779 Cost of Shares Redeemed (131,887) (412,567) - --------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions (68,516) 59,507 - --------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets (284,888) 185,719 - --------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 2,136,857 1,951,138 - --------------------------------------------------------------------------------- END OF PERIOD $ 1,851,969 $ 2,136,857 ================================================================================= Undistributed Net Investment Income Included in Net Assets at Period End $ 989 $ 1,444 ================================================================================= - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 207 Statements of Changes in Net Assets ($ Thousands) For the period ended November 30, 2007 (Unaudited) and the year ended May 31, 2007 - ----------------------------------------------------------------------------------------------------------------------------- SMALL/MID CAP INTERNATIONAL EQUITY FUND EQUITY FUND - ----------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/06 6/1/07 6/1/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ----------------------------------------------------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 8,567 $ 12,692 $ 17,614 $ 47,236 Net Realized Gain (Loss) from Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts 37,045 99,347 59,998 305,493 Net Realized Gain (Loss) on Foreign Currency Transactions (150) (20) 9,446 3,562 Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts (259,490) 205,137 (98,028) 85,082 Net Change in Unrealized Appreciation (Depreciation) on Foreign Capital Gains Tax -- -- 31 7 Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions (7) 1 (1,714) 1,119 - ----------------------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations (214,035) 317,157 (12,653) 442,499 - ----------------------------------------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (6,819) (13,728) -- (69,089) Net Realized Gains: Class A -- (114,066) -- (315,688) - ----------------------------------------------------------------------------------------------------------------------------- Total Dividends and Distributions (6,819) (127,794) -- (384,777) - ----------------------------------------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 755,621(2) 550,115 75,735 181,985 Reinvestment of Dividends & Distributions 6,781 126,672 -- 375,674 Cost of Shares Redeemed (142,201) (217,044) (247,090) (481,732) - ----------------------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions 620,201 459,743 (171,355) 75,927 - ----------------------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets 399,347 649,106 (184,008) 133,649 - ----------------------------------------------------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 1,865,746 1,216,640 1,790,634 1,656,985 - ----------------------------------------------------------------------------------------------------------------------------- END OF PERIOD $ 2,265,093 $ 1,865,746 $ 1,606,626 $ 1,790,634 ============================================================================================================================= Undistributed Net Investment Income Included in Net Assets at Period End $ 3,419 $ 1,671 $ 42,449 $ 24,835 ============================================================================================================================= (1) See Note 4 in the Notes to Financial Statements for additional information. (2) Includes subscriptions as a result of an in-kind transfers of securities (see Note 8). (3) Commenced operations on December 14, 2006. Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 208 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ---------------------------------------------------------------------------------------------------------------------------- WORLD EQUITY ENHANCED EX-US FUND INCOME FUND(3) - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/06 6/1/07 12/14/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 24,025 $ 35,124 $ 4,203 $ 2,980 Net Realized Gain (Loss) from Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts 11,315 128,944 (1,516) 233 Net Realized Gain (Loss) on Foreign Currency Transactions 21,153 4,070 34 25 Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts 3,837 241,964 (7,741) (165) Net Change in Unrealized Appreciation (Depreciation) on Foreign Capital Gains Tax (692) (253) -- -- Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions (4,211) 2,091 (798) 320 - ---------------------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations 55,427 411,940 (5,818) 3,393 - ---------------------------------------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A -- (36,280) (4,276) (1,709) Net Realized Gains: Class A -- (55,011) -- -- - ---------------------------------------------------------------------------------------------------------------------------- Total Dividends and Distributions -- (91,291) (4,276) (1,709) - ---------------------------------------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 1,015,053 1,005,592 130,567 122,922 Reinvestment of Dividends & Distributions -- 90,953 4,276 1,709 Cost of Shares Redeemed (193,555) (272,762) (24,093) (2,885) - ---------------------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions 821,498 823,783 110,750 121,746 - ---------------------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets 876,925 1,144,432 100,656 123,430 - ---------------------------------------------------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 2,053,014 908,582 123,430 -- - ---------------------------------------------------------------------------------------------------------------------------- END OF PERIOD $ 2,929,939 $ 2,053,014 $ 224,086 $ 123,430 ============================================================================================================================ Undistributed Net Investment Income Included in Net Assets at Period End $ 49,208 $ 25,183 $ 1,249 $ 1,322 ============================================================================================================================ - --------------------------------------------------------------------------------------------- CORE FIXED INCOME FUND - --------------------------------------------------------------------------------------------- 6/1/07 6/1/06 to 11/30/07 to 5/31/07 - --------------------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 163,788 $ 280,099 Net Realized Gain (Loss) from Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts 25,981 25,217 Net Realized Gain (Loss) on Foreign Currency Transactions (1,016) (433) Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Written Options, Written Swaptions, Futures Contracts and Swap Contracts 113,163 37,677 Net Change in Unrealized Appreciation (Depreciation) on Foreign Capital Gains Tax -- -- Net Change in Unrealized Appreciation (Depreciation) on Foreign Currency Transactions (456) 273 - --------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations 301,460 342,833 - --------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (165,001) (279,194) Net Realized Gains: Class A -- -- - --------------------------------------------------------------------------------------------- Total Dividends and Distributions (165,001) (279,194) - --------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 1,125,010 2,013,899 Reinvestment of Dividends & Distributions 161,052 272,084 Cost of Shares Redeemed (707,516) (1,101,898) - --------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions 578,546 1,184,085 - --------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets 715,005 1,247,724 - --------------------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 5,894,127 4,646,403 - --------------------------------------------------------------------------------------------- END OF PERIOD $ 6,609,132 $ 5,894,127 ============================================================================================= Undistributed Net Investment Income Included in Net Assets at Period End $ (1,034) $ 179 ============================================================================================= - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 209 Statements of Changes in Net Assets ($ Thousands) For the period ended November 30, 2007 (Unaudited) and the year ended May 31, 2007 - ------------------------------------------------------------------------------------------------------------- HIGH YIELD LONG DURATION BOND FUND FUND - ------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/06 6/1/07 6/1/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ------------------------------------------------------------------------------------------------------------- OPERATIONS: Net Investment Income $ 50,828 $ 84,378 $ 5,473 $ 9,817 Net Realized Gain (Loss) from Investments, Affiliated Investments, Written Options, Futures Contracts and Swap Contracts (3,610) 5,596 (338) (3,977) Net Realized Gain (Loss) on Foreign Currency Transactions -- -- -- -- Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Written Options, Futures Contracts and Swap Contracts (86,872) 27,837 6,462 6,742 Net Change in Unrealized Appreciation (Depreciation) on Foreign Capital Gains Tax -- -- -- -- Net Change in Unrealized Appreciation on Foreign Currency Transactions -- -- -- -- - ------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets Resulting from Operations (39,654) 117,811 11,597 12,582 - ------------------------------------------------------------------------------------------------------------- DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (51,082) (84,450) (5,217) (9,267) Net Realized Gains: Class A -- (5,174) -- -- - ------------------------------------------------------------------------------------------------------------- Total Dividends and Distributions (51,082) (89,624) (5,217) (9,267) - ------------------------------------------------------------------------------------------------------------- CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 246,124 398,488 13,268 10,523 Reinvestment of Dividends & Distributions 50,232 87,670 5,217 9,267 Cost of Shares Redeemed (68,761) (134,792) (13,349) (3,813) - ------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions 227,595 351,366 5,136 15,977 - ------------------------------------------------------------------------------------------------------------- Net Increase (Decrease) in Net Assets 136,859 379,553 11,516 19,292 - ------------------------------------------------------------------------------------------------------------- NET ASSETS: BEGINNING OF PERIOD 1,241,924 862,371 184,616 165,324 - ------------------------------------------------------------------------------------------------------------- END OF PERIOD $ 1,378,783 $ 1,241,924 $ 196,132 $ 184,616 ============================================================================================================= Undistributed (Distribution in Excess of) Net Investment Income Included in Net Assets at Period End $ 29 $ 283 $ (783) $ (1,039) ============================================================================================================= (1) See Note 4 in the Notes to Financial Statements for additional information. (2) Commenced operations on December 14, 2006. Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 210 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ------------------------------------------------------------------------------------------------------------------------------------ EXTENDED EMERGING MARKETS REAL RETURN DURATION FUND DEBT FUND PLUS FUND(2) - ------------------------------------------------------------------------------------------------------------------------------------ 6/1/07 6/1/06 6/1/07 6/1/06 6/1/07 12/14/06 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 to 11/30/07 to 5/31/07 - ------------------------------------------------------------------------------------------------------------------------------------ OPERATIONS: Net Investment Income $ 14,721 $ 16,483 $ 27,910 $ 38,506 $ 6,418 $ 4,565 Net Realized Gain (Loss) from Investments, Affiliated Investments, Written Options, Futures Contracts and Swap Contracts (5,475) (6,977) 800 9,694 1,769 988 Net Realized Gain (Loss) on Foreign Currency Transactions -- -- 2,892 1,815 658 (16) Net Change in Unrealized Appreciation (Depreciation) on Investments, Affiliated Investments, Written Options, Futures Contracts and Swap Contracts 84,911 3,317 (21,600) 46,646 17,517 (2,844) Net Change in Unrealized Appreciation (Depreciation) on Foreign Capital Gains Tax -- -- -- -- -- -- Net Change in Unrealized Appreciation on Foreign Currency Transactions -- -- 1,241 89 (1,171) 978 - ------------------------------------------------------------------------------------------------------------------------------------ Net Increase (Decrease) in Net Assets Resulting from Operations 94,157 12,823 11,243 96,750 25,191 3,671 - ------------------------------------------------------------------------------------------------------------------------------------ DIVIDENDS AND DISTRIBUTIONS FROM: Net Investment Income: Class A (13,937) (14,980) (27,226) (36,685) -- (2,421) Net Realized Gains: Class A -- -- -- (4,938) -- -- - ------------------------------------------------------------------------------------------------------------------------------------ Total Dividends and Distributions (13,937) (14,980) (27,226) (41,623) -- (2,421) - ------------------------------------------------------------------------------------------------------------------------------------ CAPITAL SHARE TRANSACTIONS:(1) CLASS A: Proceeds from Shares Issued 343,166 151,838 217,482 291,823 110,222 228,504 Reinvestment of Dividends & Distributions 13,937 14,980 26,812 40,676 -- 2,422 Cost of Shares Redeemed (27,887) (16,917) (42,848) (63,398) (40,620) (10,645) - ------------------------------------------------------------------------------------------------------------------------------------ Increase (Decrease) in Net Assets Derived from Class A Transactions 329,216 149,901 201,446 269,101 69,602 220,281 - ------------------------------------------------------------------------------------------------------------------------------------ Net Increase (Decrease) in Net Assets 409,436 147,744 185,463 324,228 94,793 221,531 - ------------------------------------------------------------------------------------------------------------------------------------ NET ASSETS: BEGINNING OF PERIOD 370,667 222,923 804,036 479,808 221,531 -- - ------------------------------------------------------------------------------------------------------------------------------------ END OF PERIOD $ 780,103 $ 370,667 $ 989,499 $ 804,036 $ 316,324 $ 221,531 ==================================================================================================================================== Undistributed (Distribution in Excess of) Net Investment Income Included in Net Assets at Period End $ (1,861) $ (2,645) $ 9,563 $ 8,879 $ 8,546 $ 2,128 ==================================================================================================================================== - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 211 Financial Highlights For the period ended November 30, 2007 (Unaudited) and the years or periods ended May 31, For a share outstanding throughout each period - --------------------------------------------------------------------------------------------------------------------------- Net Realized and Distributions Net Asset Unrealized Dividends from Total Value, Net Gains Total from Net Realized Dividends Net Asset Beginning Investment (Losses) on from Investment Capital and Value, End of Period Income Securities Operations Income Gains Distributions of Period - --------------------------------------------------------------------------------------------------------------------------- LARGE CAP FUND Class A 2007* $ 20.31 $ 0.16(4) $ (0.48)(4) $ (0.32) $ (0.18) $ -- $ (0.18) $ 19.81 2007 16.93 0.28(4) 3.40(4) 3.68 (0.30) -- (0.30) 20.31 2006 15.53 0.24(4) 1.44(4) 1.68 (0.28) -- (0.28) 16.93 2005 14.47 0.25(4) 1.05(4) 1.30 (0.24) -- (0.24) 15.53 2004 12.41 0.18(4) 2.09(4) 2.27 (0.21) -- (0.21) 14.47 2003 13.82 0.16(4) (1.41)(4) (1.25) (0.16) -- (0.16) 12.41 LARGE CAP DIVERSIFIED ALPHA FUND Class A 2007* $ 11.94 $ 0.09(4) $ (0.54)(4) $ (0.45) $ (0.12) $ -- $ (0.12) $ 11.37 2007 9.94 0.19(4) 2.04(4) 2.23 (0.16) (0.07) (0.23) 11.94 2006(2) 10.00 0.04(4) (0.09)(4) (0.05) (0.01) -- (0.01) 9.94 LARGE CAP DISCIPLINED EQUITY FUND Class A 2007* $ 14.38 $ 0.14(4) $ (0.78)(4) $ (0.64) $ (0.16) $ -- $ (0.16) $ 13.58 2007++ 12.36 0.51(4) 2.27(4) 2.78 (0.30) (0.46) (0.76) 14.38 2006++ 12.05 0.26(4) 0.85(4) 1.11 (0.22) (0.58) (0.80) 12.36 2005++ 11.18 0.20(4) 0.94(4) 1.14 (0.18) (0.09) (0.27) 12.05 2004(1) 10.00 0.07(4) 1.25(4) 1.32 (0.06) (0.08) (0.14) 11.18 LARGE CAP INDEX FUND Class A 2007* $ 135.30 $ 1.26(4) $ (4.71)(4) $ (3.45) $ (1.21) $ -- $ (1.21) $ 130.64 2007 113.02 2.29(4) 23.15(4) 25.44 (2.33) (0.83) (3.16) 135.30 2006 106.24 2.06(4) 7.77(4) 9.83 (1.94) (1.11) (3.05) 113.02 2005 99.12 1.93(4) 7.20(4) 9.13 (1.82) (0.19) (2.01) 106.24 2004+++ 84.90 1.50(4) 14.28(4) 15.78 (1.37) (0.19) (1.56) 99.12 2003+++ 93.40 1.10 (8.50)(5) (7.40) (1.10) -- (1.10) 84.90 SMALL CAP FUND Class A 2007* $ 16.44 $ 0.05(4) $ (1.68)(4) $ (1.63) $ (0.06) $ -- $ (0.06) $ 14.75 2007 15.52 0.10(4) 2.85(4) 2.95 (0.12) (1.91) (2.03) 16.44 2006 14.27 0.07(4) 2.55(4) 2.62 (0.06) (1.31) (1.37) 15.52 2005 14.70 0.07(4) 1.38(4) 1.45 (0.05) (1.83) (1.88) 14.27 2004 11.60 0.06(4) 3.59(4) 3.65 (0.07) (0.48) (0.55) 14.70 2003 12.53 0.07(4) (0.94)(4) (0.87) (0.06) -- (0.06) 11.60 SMALL/MID CAP EQUITY FUND Class A 2007* $ 14.95 $ 0.06(4) $ (1.48)(4) $ (1.42) $ (0.05) $ -- $ (0.05) $ 13.48 2007++ 13.38 0.19(4) 2.57(4) 2.76 (0.13) (1.06) (1.19) 14.95 2006++ 11.96 0.09(4) 1.97(4) 2.06 (0.08) (0.56) (0.64) 13.38 2005++ 10.70 0.05(4) 1.38(4) 1.43 (0.05) (0.12) (0.17) 11.96 2004(3)++ 10.00 0.02(4) 0.69(4) 0.71 (0.01) -- (0.01) 10.70 Ratio of Expenses Ratio of to Average Expenses Net Assets to Average (Excluding Net Assets Ratio of Net Ratio of Net Fees Paid (Excluding Investment Net Assets Expenses Indirectly Fees Paid Income Portfolio Total End of Period to Average and including Indirectly to Average Turnover Return+ ($Thousands) Net Assets Waivers) and Waivers) Net Assets Rate+ - ------------------------------------------------------------------------------------------------------------------- LARGE CAP FUND Class A 2007* (1.64)% $ 402,155 0.26% 0.26% 0.47% 1.57% 28% 2007 21.97 693,994 0.26 0.26 0.46 1.57 47 2006 10.87 801,217 0.25 0.26 0.48 1.47 103 2005 9.02 1,751,751 0.26 0.26 0.47 1.67 43 2004 18.37 1,787,850 0.26 0.26 0.48 1.34 109 2003 (8.98) 3,008,463 0.26 0.26 0.47 1.39 51 LARGE CAP DIVERSIFIED ALPHA FUND Class A 2007* (3.84)% $ 459,684 0.57%** 0.57%** 0.70% 1.50% 82% 2007 22.64 453,954 0.62** 0.62** 0.74 1.77 132 2006(2) (0.49) 139,046 0.45** 0.45** 0.66 1.70 47 LARGE CAP DISCIPLINED EQUITY FUND Class A 2007* (4.43)% $8,621,955 0.20% 0.20% 0.46% 1.96% 73% 2007++ 23.15 7,833,212 0.23(6) 0.23(6) 0.47(6) 2.43 135 2006++ 9.33 4,938,416 0.24 0.24 0.47 2.10 140 2005++ 10.26 3,531,361 0.31 0.31 0.47 1.69 71 2004(1) 13.23 2,285,041 0.33 0.33 0.47 1.33 67 LARGE CAP INDEX FUND Class A 2007* (2.57)% $ 385,112 0.06% 0.06% 0.24% 1.90% 6% 2007 22.87 416,933 0.06 0.06 0.24 1.88 10 2006 9.34 367,084 0.08 0.08 0.24 1.84 20 2005 9.29 320,703 0.13 0.13 0.24 1.89 8 2004+++ 18.71 284,711 0.16 0.16 0.24 1.58 6 2003+++ (7.79) 142,612 0.20 0.20 0.25 1.67 12 SMALL CAP FUND Class A 2007* (9.97)% $1,851,969 0.52% 0.54% 0.72% 0.68% 53% 2007 20.32 2,136,857 0.52 0.54 0.72 0.67 92 2006 18.93 1,951,138 0.52 0.54 0.72 0.44 119 2005 9.81 1,610,876 0.54 0.54 0.72 0.46 94 2004 31.76 1,309,254 0.54 0.54 0.72 0.45 135 2003 (6.83) 1,193,935 0.54 0.54 0.72 0.67 97 SMALL/MID CAP EQUITY FUND Class A 2007* (9.53)% $2,265,093 0.49% 0.50% 0.71% 0.86% 46% 2007++ 21.60 1,865,746 0.48 0.50 0.72 0.85 104 2006++ 17.51 1,216,640 0.50 0.53 0.72 0.69 123 2005++ 13.38 768,897 0.62 0.62 0.72 0.47 98 2004(3)++ 7.15 423,768 0.65 0.65 0.73 0.45 51 * For the six month period ended November 30, 2007 (Unaudited). All ratios for the period have been annualized. ** The expense ratio includes dividend and interest expenses. Had these expenses been excluded the ratio would have been 0.33% for the period ended November 30, 2007 (Unaudited) and 0.35% and 0.34% for 2007 and 2006, respectively. + Returns and portfolio turnover rates are for the period indicated and have not been annualized. Returns do not reflect the deduction of taxes the shareholder would pay on fund distributions or redemption of Fund shares. ++ Per share amounts have been adjusted for a 10 to 1 stock split paid to shareholders of record on November 16, 2006. +++ Per share amounts have been adjusted for a 10 to 1 reverse stock split paid to shareholders of record on November 26, 2003. (1) Commenced operations on August 28, 2003. All ratios for the period have been annualized. (2) Commenced operations on February 28, 2006. All ratios for the period have been annualized. (3) Commenced operations on December 15, 2003. All ratios for the period have been annualized. (4) Per share net investment income and net realized and unrealized gains (losses) calculated using average shares. (5) The amount shown for the year ended May 31, 2003 for a share outstanding throughout the period does not accord with the aggregate net gains on investments for that period because of the sales and repurchase of Fund shares in relation to fluctuating market value of the investments of the Fund. (6) The expense ratio includes interest expense on reverse repurchase agreements. Had this expense been excluded, the ratios would have been 0.22%, 0.22%, and 0.47%, respectively. Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- 212 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ---------------------------------------------------------------------------------------------------------------------------------- Net Realized and Distributions Net Asset Unrealized Dividends from Total Value, Net Gains Total from Net Realized Dividends Net Asset Beginning Investment (Losses) on from Investment Capital and Value, End Total of Period Income Securities Operations Income Gains Distributions of Period Return+ - ---------------------------------------------------------------------------------------------------------------------------------- INTERNATIONAL EQUITY FUND Class A 2007* $ 14.27 $ 0.15(3) $ (0.23)(3) $ (0.08) $ -- $ -- $ -- $ 14.19 (0.56)% 2007 14.05 0.37(3) 3.12(3) 3.49 (0.50) (2.77) (3.27) 14.27 28.00 2006 11.15 0.29(3) 3.09(3) 3.38 (0.37) (0.11) (0.48) 14.05 30.77 2005 10.06 0.23(3) 1.16(3) 1.39 (0.30) -- (0.30) 11.15 13.73 2004 7.76 0.18(3) 2.28(3) 2.46 (0.16) -- (0.16) 10.06 31.73 2003 9.21 0.13 (1.46) (1.33) (0.12) -- (0.12) 7.76 (14.43) WORLD EQUITY EX-US FUND Class A 2007* $ 15.96 $ 0.16(3) $ 0.29(3) $ 0.45 $ -- $ -- $ -- $ 16.41 2.82% 2007 12.99 0.35(3) 3.47(3) 3.82 (0.33) (0.52) (0.85) 15.96 30.29 2006 9.81 0.27(3) 3.01(3) 3.28 (0.09) (0.01) (0.10) 12.99 33.52 2005(4) 10.00 0.07(3) (0.26)(3) (0.19) -- -- -- 9.81 (1.90) ENHANCED INCOME FUND Class A 2007* $ 10.14 $ 0.26(3) $ (0.59)(3) $ (0.33) $ (0.27) -- $ (0.27) $ 9.54 (3.56)% 2007(7) 10.00 0.27(3) 0.03(3) 0.30 (0.16) $ -- (0.16) 10.14 3.02 CORE FIXED INCOME FUND Class A 2007* $ 9.99 $ 0.25(3) $ 0.23(3) $ 0.48 $ (0.27) $ -- $ (0.27) $ 10.20 4.87% 2007 9.84 0.53(3) 0.14(3) 0.67 (0.52) -- (0.52) 9.99 6.95 2006 10.34 0.47(3) (0.48)(3) (0.01) (0.48) (0.01) (0.49) 9.84 (0.09) 2005 10.19 0.41(3) 0.27(3) 0.68 (0.42) (0.11) (0.53) 10.34 6.77 2004 10.61 0.38(3) (0.26)(3) 0.12 (0.40) (0.14) (0.54) 10.19 1.13 2003 10.27 0.50 0.60 1.10 (0.50) (0.26) (0.76) 10.61 11.10 HIGH YIELD BOND FUND Class A 2007* $ 10.33 $ 0.39(3) $ (0.70)(3) $ (0.31) $ (0.39) $ -- $ (0.39) $ 9.63 (2.91)% 2007 10.08 0.84(3) 0.30(3) 1.14 (0.84) (0.05) (0.89) 10.33 11.81 2006(2) 10.00 0.40(3) 0.08(3) 0.48 (0.40) -- (0.40) 10.08 4.85 LONG DURATION FUND Class A 2007* $ 9.52 $ 0.27(3) $ 0.30(3) $ 0.57 $ (0.26) $ -- $ (0.26) $ 9.83 6.19% 2007 9.31 0.53(3) 0.18(3) 0.71 (0.50) -- (0.50) 9.52 7.67 2006 10.56 0.46(3) (1.07)(3) (0.61) (0.54) (0.10) (0.64) 9.31 (6.08) 2005 9.77 0.42(3) 1.03(3) 1.45 (0.54) (0.12) (0.66) 10.56 15.26 2004(1) 10.00 0.05(3) (0.23)(3) (0.18) (0.05) -- (0.05) 9.77 (1.78) EXTENDED DURATION FUND Class A 2007* $ 9.24 $ 0.27(3) $ 1.13(3) $ 1.40 $ (0.26) $ -- $ (0.26) $ 10.38 15.43% 2007 8.86 0.55(3) 0.32(3) 0.87 (0.49) -- (0.49) 9.24 9.73 2006 11.96 0.48(3) (2.68)(3) (2.20) (0.68) (0.22) (0.90) 8.86 (19.24) 2005 9.53 0.43(3) 2.84(3) 3.27 (0.84) -- (0.84) 11.96 35.74 2004(1) 10.00 0.05(3) (0.44)(3) (0.39) (0.08) -- (0.08) 9.53 (3.88) EMERGING MARKETS DEBT FUND Class A 2007* $ 10.95 $ 0.34(3) $ (0.22)(3) $ 0.12 $ (0.34) $ -- $ (0.34) $ 10.73 1.08% 2007 9.97 0.65(3) 1.03(3) 1.68 (0.62) (0.08) (0.70) 10.95 17.40 2006(2) 10.00 0.27(3) (0.17)(3) 0.10 (0.13) -- (0.13) 9.97 1.00 REAL RETURN PLUS FUND Class A 2007* $ 10.10 $ 0.24(3) $ 0.69(3) $ 0.93 $ -- $ -- $ -- $ 11.03 9.21% 2007(7) 10.00 0.26(3) (0.03)(3) 0.23 (0.13) -- (0.13) 10.10 2.29 - ---------------------------------------------------------------------------------------------------------------------------------- Ratio of Expenses Ratio of to Average Expenses Net Assets to Average (Excluding Net Assets Ratio of Net Ratio of Net Fees Paid (Excluding Investment Net Assets Expenses Indirectly Fees Paid Income Portfolio End of Period to Average and including Indirectly to Average Turnover ($ Thousands) Net Assets Waivers) and Waivers) Net Assets Rate+ - ---------------------------------------------------------------------------------------------------------------------------------- INTERNATIONAL EQUITY FUND Class A 2007* $1,606,626 0.41%(8) 0.41%(8) 0.62%(8) 2.10% 66% 2007 1,790,634 0.50(5) 0.50(5) 0.71(5) 2.69 153 2006 1,656,985 0.36 0.36 0.63 2.30 116 2005 1,677,254 0.43 0.43 0.58 2.12 48 2004 1,391,076 0.48 0.48 0.65 1.92 80 2003 1,176,097 0.48 0.48 0.68 1.85 58 WORLD EQUITY EX-US FUND Class A 2007* $2,929,939 0.60%(6) 0.60%(6) 0.65%(6) 1.95% 73% 2007 2,053,014 0.71(6) 0.71(6) 0.77(6) 2.45 154 2006 908,582 0.60 0.61 0.76 2.22 104 2005(4) 234,396 0.60 0.60 0.70 4.35 15 ENHANCED INCOME FUND Class A 2007* $ 224,086 0.44% 0.44% 0.53% 5.28% 30% 2007(7) 123,430 0.44 0.44 0.54 5.84 53 CORE FIXED INCOME FUND Class A 2007* $6,609,132 0.14% 0.14% 0.37% 5.32% 223% 2007 5,894,127 0.14 0.14 0.37 5.23 428 2006 4,646,403 0.14 0.14 0.37 4.62 545 2005 4,265,249 0.15 0.15 0.37 3.94 615 2004 3,074,873 0.19** 0.19** 0.38 3.62 532 2003 2,431,368 0.18 0.18 0.37 4.79 436 HIGH YIELD BOND FUND Class A 2007* $1,378,783 0.35% 0.35% 0.55% 7.85% 30% 2007 1,241,924 0.35 0.35 0.56 8.25 98 2006(2) 862,371 0.35 0.35 0.57 8.15 58 LONG DURATION FUND Class A 2007* $ 196,132 0.20% 0.20% 0.38% 5.71% 29% 2007 184,616 0.20 0.20 0.38 5.49 97 2006 165,324 0.20 0.20 0.39 4.69 113 2005 76,054 0.20 0.20 0.41 4.05 449 2004(1) 6,317 0.20 0.20 0.57 5.02 31 EXTENDED DURATION FUND Class A 2007* $ 780,103 0.20% 0.20% 0.37% 5.81% 23% 2007 370,667 0.20 0.20 0.38 5.63 123 2006 222,923 0.20 0.20 0.39 4.64 170 2005 154,779 0.20 0.20 0.41 3.99 379 2004(1) 27,787 0.20 0.20 0.44 5.17 42 EMERGING MARKETS DEBT FUND Class A 2007* $ 989,499 0.55% 0.55% 0.93% 6.35% 31% 2007 804,036 0.55 0.55 0.94 6.16 89 2006(2) 479,808 0.55 0.55 0.95 5.43 51 REAL RETURN PLUS FUND Class A 2007* $ 316,324 0.44% 0.44% 0.77% 4.69% 22% 2007(7) 221,531 0.44 0.44 0.78 5.67 18 * For the six month period ended November 30, 2007 (Unaudited). All ratios for the period have been annualized. ** The expense ratio includes the litigation fees paid. Had these fees been excluded the ratio would have been 0.18%. + Returns and portfolio turnover rates are for the period indicated and have not been annualized. Returns do not reflect the deduction of taxes the shareholder would pay on fund distributions or redemption of Fund shares. (1) Commenced operations on April 21, 2004. All ratios for the period have been annualized. (2) Commenced operations on December 5, 2005. All ratios for the period have been annualized. (3) Per share net investment income and net realized and unrealized gains (losses) calculated using average shares. (4) Commenced operations on March 28, 2005. All ratios for the period have been annualized. (5) The expense ratio includes interest expense on reverse repurchase agreements. Had this expense been excluded, the ratios would have been 0.37%, 0.37%, and 0.59%, respectively. (6) The expense ratio includes interest expense on reverse repurchase agreements. Had this expense been excluded, the ratios would have been 0.60%, 0.60%, and 0.67%, respectively. (7) Commenced operations on December 14, 2006. All ratios for the period have been annualized. (8) The expense ratio includes interest expense on reverse repurchase agreements. Had this expense been excluded, the ratios would have been 0.39%, 0.39% and 0.61%, respectively. Amounts designated as "--" are zero or have been rounded to zero. The accompanying notes are an integral part of the financial statements. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 213 Notes to Financial Statements (Unaudited) NOVEMBER 30, 2007 1. ORGANIZATION SEI Institutional Investments Trust (the "Trust") was organized as a Massachusetts business trust under a Declaration of Trust dated March 1, 1995. The Trust commenced operations on June 14, 1996. The Trust is registered under the Investment Company Act of 1940, as amended, as an open-end investment company currently offering 15 Funds: The Large Cap, Large Cap Diversified Alpha, Large Cap Disciplined Equity, Large Cap Index, Small Cap, Small/Mid Cap Equity, International Equity, World Equity Ex-US, Enhanced Income, Core Fixed Income, High Yield Bond, Long Duration, Extended Duration, Emerging Markets Debt and Real Return Plus Funds (each a "Fund," collectively, the "Funds") each of which are diversified Funds with the exception of the Emerging Markets Debt Fund. The Trust is registered to offer Class A shares of all Funds. The assets of each Fund are segregated, and a shareholder's interest is limited to the Fund in which shares are held. The Fund's prospectus provides a description of each Fund's investment objectives, policies, and strategies. Effective January 2, 2008, the Enhanced Income Fund's name changed to the Enhanced LIBOR Opportunities Fund. 2. SIGNIFICANT ACCOUNTING POLICIES The following is a summary of the significant accounting policies followed by the Funds. 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 reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates. SECURITY VALUATION -- Securities listed on a securities exchange, market or automated quotation system for which quotations are readily available (except for securities traded on NASDAQ) are valued at the last quoted sale price on the primary exchange or market (foreign or domestic) on which they are traded, or, if there is no such reported sale, at the most recent quoted bid price. For securities traded on NASDAQ, the NASDAQ Official Closing Price will be used. Debt securities are priced based upon valuations provided by independent, third-party pricing agents, if available. Such values generally reflect the last reported sales price if the security is actively traded. The third-party pricing agents may also value debt securities at an evaluated bid price by employing methodologies that utilize actual market transactions, broker-supplied valuations, or other methodologies designed to identify the market value for such securities. Debt obligations acquired with remaining maturities of sixty days or less may be valued at their amortized cost, which approximates market value. The prices for foreign securities are reported in local currency and converted to U.S. dollars using currency exchange rates. Prices for most securities held in the Funds are provided daily by recognized independent pricing agents. If a security price cannot be obtained from an independent, third-party pricing agent, the Funds seek to obtain a bid price from at least one independent broker. Securities for which market prices are not "readily available" are valued in accordance with Fair Value Procedures established by the Funds' Board of Trustees. The Funds' Fair Value Procedures are implemented through a Fair Value Committee (the "Committee") designated by the Funds' Board of Trustees. Some of the more common reasons that may necessitate that a security be valued using Fair Value Procedures include: the security's trading has been halted or suspended; the security has been de-listed from a national exchange; the security's primary trading market is temporarily closed at a time when under normal conditions it would be open; or the security's primary pricing source is not able or willing to provide a price. When a security is valued in accordance with the Fair Value Procedures, the Committee will determine the value after taking into consideration relevant information reasonably available to the Committee. For securities that principally trade on a foreign market or exchange, a significant gap in time can exist between the time of a particular security's last trade and the time at which a Fund calculates its net asset value. The closing prices of such securities may no longer reflect their market value at the time the Fund calculates net asset value if an event that could materially affect the value of those securities (a "Significant Event") has occurred between the time of the security's last close and the time that the Fund calculates net asset value. A Significant Event may relate to a single issuer or to an entire market sector. If the adviser or sub-adviser of a Fund becomes aware of a Significant Event that has occurred with respect to a security or group of securities after the closing of the exchange or market on which the security or securities principally trade, but before the time at which the Fund calculates net asset value, it may request that a Fair Value Committee Meeting be called. In addition, the Funds' administrator monitors price movements among certain selected indices, securities and/or baskets of securities that may be an indicator that the closing prices received earlier from foreign exchanges or markets may not reflect market value at the time the Fund calculates net asset value. If price movements in a monitored index or security - -------------------------------------------------------------------------------- 214 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 exceed levels established by the administrator, the administrator notifies the adviser or sub-adviser for any Fund holding the relevant securities that such limits have been exceeded. In such event, the adviser or sub-adviser makes the determination whether a Fair Value Committee Meeting should be called based on the information provided. The International Equity and World Equity Ex-US Funds that hold international securities also use a third-party fair valuation vendor. The vendor provides a fair value for foreign securities held by these Funds based on certain factors and methodologies (involving, generally, tracking valuation correlations between the U.S. market and each non-U.S. security). Values from the fair value vendor are applied in the event that there is a movement in the U.S. market that exceeds a specific threshold that has been established by the Committee. The Committee has also established a "confidence interval" which is used to determine the level of historical correlation between the value of a specific foreign security and movements in the U.S. market before a particular security will be fair valued when the threshold is exceeded. In the event that the threshold established by the Committee is exceeded on a specific day, these Funds that hold international securities will value the non-U.S. securities in their fund that exceed the applicable "confidence interval" based upon the adjusted prices provided by the fair valuation vendor. Options and warrants for which the primary market is a national securities exchange are valued at the last sale price on the exchange on which they are traded, or, in the absence of any sale, at the closing bid price. Options and warrants not traded on a national securities exchange are valued at the last quoted bid price. SECURITY TRANSACTIONS AND INVESTMENT INCOME -- Security transactions are recorded on the trade date. Cost used in determining net realized capital gains and losses on the sale of securities is determined on the basis of specific identification. Dividend income and expense is recognized on the ex-dividend date, and interest income or expense is recognized using the accrual basis of accounting. Amortization and accretion is calculated using the scientific interest method, which approximates the effective interest method over the holding period of the security. Amortization of premiums and discounts is included in interest income. REPURCHASE AGREEMENTS -- Each Fund may agree to purchase securities from financial institutions subject to the seller's agreement to repurchase them at a mutually agreed upon date and price. It is each Fund's policy that repurchase agreements are fully collateralized by U.S. Treasury and Government Agency securities. All collateral is held by the Fund's custodian bank or a bank with which the custodian bank has entered into a subcustodian agreement, or is segregated in the Federal Reserve Book Entry System. In connection with transactions in repurchase agreements, if the seller defaults and the value of the collateral declines, or if the seller enters an insolvency proceeding, realization of the collateral by the Fund may be delayed or limited. REVERSE REPURCHASE AGREEMENTS -- The Large Cap Disciplined Equity, International Equity and World Equity Ex-US Funds may issue reverse repurchase agreements. A reverse repurchase agreement involves the sale of portfolio assets together with an agreement to repurchase the same assets later at a fixed price. Additional assets are maintained in an account with the broker. The segregated assets may consist of cash, U.S. Government securities, or other liquid securities at least equal in value to the obligations under the reverse repurchase agreements. In the event the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, the Fund's use of the proceeds under the agreement may be restricted pending a determination by the other party, or its trustee or receiver, whether to enforce the obligation to repurchase the securities. There were no reverse repurchase agreements outstanding as of November 30, 2007. COMPENSATING BALANCES -- Funds with cash overdrafts in excess of $100,000 are required to leave 112% in compensating balances with U.S. Bank NA, the custodian of the Trust, on the following day. Funds with positive cash balances in excess of $100,000 are allowed to overdraw 90% of the balance with U.S. Bank NA on the following day. EXPENSES -- Expenses that are directly related to one of the Funds are charged directly to that Fund. Other operating expenses of the Funds are prorated to the Funds on the basis of relative net assets. FOREIGN CURRENCY TRANSLATION -- The books and records of the Funds investing in international securities are maintained in U.S. dollars on the following basis: (I) market value of investment securities, assets and liabilities at the current rate of exchange; and (II) purchases and sales of investment securities, income and expenses at the relevant rates of exchange prevailing on the respective dates of such transactions. The Funds do not isolate that portion of gains and losses on investments in equity securities that is due to changes in the foreign exchange rates from that which is due to changes in market prices of equity securities. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 215 Notes to Financial Statements (Unaudited) (Continued) NOVEMBER 30, 2007 The Funds report certain foreign-currency-related transactions as components of realized gains for financial reporting purposes, whereas such components are treated as ordinary income for Federal income tax purposes. FORWARD FOREIGN CURRENCY CONTRACTS -- The Funds may enter into forward foreign currency contracts as hedges against either specific transactions, fund positions or anticipated fund positions. All commitments are "marked-to-market" daily at the applicable foreign exchange rate, and any resulting unrealized gains or losses are recorded currently. The Large Cap Disciplined Equity, Small Cap, Small/Mid Cap Equity, International Equity, World Equity Ex-US, Enhanced Income, Core Fixed Income, Emerging Markets Debt and Real Return Plus Funds realize gains and losses at the time forward contracts are extinguished. Unrealized gains or losses on outstanding positions in forward foreign currency contracts held at the close of the period are recognized as ordinary income or loss for Federal income tax purposes. The Funds could be exposed to risk if the counterparties to the contracts are unable to meet the terms of the contract and from unanticipated movements in the value of a foreign currency relative to the U.S. dollar. Finally, the risk exists that losses could exceed amounts disclosed on the Schedule of Investments or Statement of Assets and Liabilities. FUTURES CONTRACTS -- Each of the Funds with the exception of the High Yield Bond Fund utilized futures contracts during the six month period ended November 30, 2007. The Funds' investments in futures contracts are designed to enable the Funds to more closely approximate the performance of their benchmark indices. The Core Fixed Income Fund's use of futures contracts is primarily for tactical hedging purposes. Initial margin deposits of cash or securities are made upon entering into futures contracts. The contracts are marked to market daily and the resulting changes in value are accounted for as unrealized gains and losses. Variation margin payments are paid or received, depending upon whether unrealized losses or gains are incurred. When the contract is closed, the Funds record a realized gain or loss equal to the difference between the proceeds from (or cost of) the closing transaction and the amount invested in the contract. Risks of entering into futures contracts include the possibility that there will be an imperfect price correlation between the futures and the underlying securities. Second, it is possible that a lack of liquidity for futures contracts could exist in the secondary market, resulting in an inability to close a position prior to its maturity date. Third, the futures contract involves the risk that the Fund could lose more than the original margin deposit required to initiate a futures transaction. Finally, the risk exists that losses could exceed amounts disclosed on the Schedule of Investments or Statement of Assets and Liabilities. OPTIONS/SWAPTIONS WRITTEN/PURCHASED -- Each Fund may invest in financial options/swaptions contracts primarily for the purpose of hedging their existing portfolio securities, or securities that the Funds intend to purchase, against fluctuations in fair market value caused by changes in prevailing market interest rates. The Core Fixed Income Fund may also invest in financial option/swaption contracts to enhance the Fund's returns. When a Fund writes or purchases an option/swaption, an amount equal to the premium received or paid by the Fund is recorded as a liability or an asset and is subsequently adjusted to the current market value of the option/swaption written or purchased. Premiums received or paid from writing or purchasing options/swaptions which expire unexercised are treated by the Fund on the expiration date as realized gains or losses. The difference between the premium and the amount paid or received on effecting a closing purchase or sale transaction, including brokerage commissions, is also treated as a realized gain or loss. If an option/swaption is exercised, the premium paid or received is added to the cost of the purchase or proceeds from the sale in determining whether the Fund has realized a gain or a loss. The International Equity, World Equity Ex-US and Core Fixed Income Funds had option/swaptions contracts as of November 30, 2007, as disclosed in the Fund's Schedule of Investments. The risk in writing a call option/swaption is that the Funds give up the opportunity for profit if the market price of the security increases. The risk in writing a put option/swaption is that the Funds may incur a loss if the market price of the security decreases and the option/swaption is exercised. The risk in purchasing an option/swaption is that the Funds pay a premium whether or not the option/swaption is exercised. The Funds also have the additional risk of being unable to enter into a closing transaction at an acceptable price if a liquid secondary market does not exist. Option/swaption contracts also involve the risk that they may not work as intended due to unanticipated developments in market conditions or other causes. Finally, the risk exists that losses could exceed amounts disclosed on the Schedule of Investments or Statement of Assets and Liabilities. - -------------------------------------------------------------------------------- 216 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Written options transactions entered into during the six month period ended November 30, 2007 are summarized as follows: - ---------------------------------------------------------------------------------------------------------------- INTERNATIONAL WORLD EQUITY CORE FIXED EQUITY FUND EX-US FUND INCOME FUND - ---------------------------------------------------------------------------------------------------------------- Number of Premium Number of Premium Number of Premium Contracts ($ Thousands) Contracts ($ Thousands) Contracts ($ Thousands) - ---------------------------------------------------------------------------------------------------------------- Balance at the beginning of period -- $ -- -- $ -- 507 $ 105 Written 28 4 49 8 7,573 4,011 Expired -- -- -- -- (2,066) (889) Closing buys -- -- -- -- (2,203) (838) - ---------------------------------------------------------------------------------------------------------------- Balance at the end of period 28 $ 4 49 $ 8 3,811 $ 2,389 - ---------------------------------------------------------------------------------------------------------------- Written swaptions transactions entered into during the six month period ended November 30, 2007 are summarized as follows: - ------------------------------------------------------------------------------- CORE FIXED INCOME FUND - ------------------------------------------------------------------------------- Number of Premium Contracts ($ Thousands) - ------------------------------------------------------------------------------- Balance at the beginning of period 138,000,000 $3,050 Written -- -- Expired -- -- Closing buys -- -- - ------------------------------------------------------------------------------- Balance at the end of period 138,000,000 $3,050 - ------------------------------------------------------------------------------- At November 30, 2007 the Funds had cash and/or securities at least equal to the value of written options/swaptions. SECURITIES SOLD SHORT -- As consistent with the Funds' investment objectives, the Funds may engage in short sales that are "uncovered." Uncovered short sales are transactions under which a Fund sells a security it does not own. To complete such a transaction, the Fund must borrow the security to make delivery to the buyer. The Fund then is obligated to replace the security borrowed by purchasing the security at the market price at the time of the replacement. The price at such time may be more or less than the price at which the security was sold by the Fund. Until the security is replaced, the Fund is required to pay the lender amounts equal to any dividends or interest that accrue during the period of the loan. Dividends and interest are shown as an expense for financial reporting purposes. To borrow the security, the Fund also may be required to pay a premium, which would decrease proceeds of the security sold. The proceeds of the short sale are retained by the broker, to the extent necessary to meet margin requirements, until the short position is closed out. A gain, limited to the price at which the Fund sold the security short, or a loss, unlimited in size, will be recognized upon the close of a short sale. Until a Fund closes its short position or replaces the borrowed security, the Fund will: (a) maintain a segregated account containing cash or liquid securities at such a level that (i) the amount deposited in the account plus the amount deposited with the broker as collateral will equal the current value of the security sold short; and (ii) the amount deposited in the segregated account plus the amount deposited with the broker as collateral will not be less than the market value of the security at the time the security was sold short, or (b) otherwise cover the Fund's short positions. SWAP AGREEMENTS -- A swap agreementis a two-party contract under which an agreement is made to exchange returns from predetermined investments or instruments, including a particular interest rate, foreign currency, or "basket" of securities representing a particular index. Credit-default swaps involve the periodic payment by the Fund or counterparty of interest based on a specified rate multiplied by a notional amount assigned to an underlying debt instrument or group of debt instruments in exchange for the assumption of credit risk on the same instruments. In the event of a credit event, usually in the form of a credit rating downgrade, the party receiving periodic payments (i.e. floating rate payer) must pay the other party (i.e. fixed rate payer) an amount equal to the outstanding principal of the downgraded debt instrument. Total return swaps allow an investor to benefit from the cash flow without ever actually owning the underlying security. The receiver must pay any decline in value to the payer at the end of the total return swaps. However, the investor does not need to make a payment if there is no decline in price. Payments can be made on various indices, bonds (i.e. mortgage backed securities, bank debt and corporate), loans or commodities. The value of a total return swap is equal to the change in value of the underlying asset versus the accrued income payment based on LIBOR (London Interbank Offered Rate) or some other form of index on the notional amount. Interest rate swaps involve the exchange by a Fund with another party of their respective commitments to pay or - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 217 Notes to Financial Statements (Unaudited) (Continued) NOVEMBER 30, 2007 receive interest (e.g., an exchange of floating rate payments for fixed rate payments) with respect to a notional amount of principal to manage the Fund's exposure to interest rates. Payments received or made are recorded as realized gains or losses. The Fund could be exposed to credit or market risk due to unfavorable changes in the fluctuation of interest rates or if the counterparty defaults on its obligation to perform. Risk of loss may exceed amounts recognized on the statement of assets and liabilities. In connection with swap agreements, securities may be set aside as collateral by the Fund's custodian. A Fund may enter into swap agreements in order to, among other things, change the maturity or duration of the investment portfolio; protect the Fund's value from changes in interest rates; or expose a Fund to a different security or market. Swaps are marked-to-market daily based upon quotations from market makers and the resulting changes in market values, if any, are recorded as unrealized gains or losses in the Statement of Operations. Net payments of interest are recorded as realized gains or losses. Entering into swap agreements involves, to varying degrees, elements of credit and market risk in excess of the amounts recognized on the Schedule of Investments or the Statement of Assets and Liabilities. Such risks involve the possibility that there will be no liquid market for these agreements, that the counterparty to the agreement may default on its obligation to perform and that there may be unfavorable changes in the fluctuation of interest rates. Risks also arise from potential losses from adverse market movements. FORWARD TREASURY COMMITMENTS -- The Funds may invest in commitments to purchase U.S. Treasury securities on an extended settlement basis. Such transactions involve the commitment to purchase a security with payment and delivery taking place in the future, sometimes a month or more after the transaction date. The Funds account for such transactions as purchases and sales and record an unrealized gain or loss each day equal to the difference between the cost of the purchase commitment and the current market value. Realized gains or losses are recorded upon closure or settlement of such commitments. No interest is earned prior to settlement of the transaction. These instruments are subject to market fluctuation due to changes in interest rates and the market value at the time of settlement could be higher or lower than the purchase price. The Funds may incur losses due to changes in the value of the underlying treasury securities from interest rate fluctuations or as a result of counterparty nonperformance. DELAYED DELIVERY TRANSACTIONS -- The Large Cap Disciplined Equity, Large Cap Diversified Alpha, Core Fixed Income, International Equity and World Equity Ex-US Funds may purchase or sell securities on a when-issued or delayed delivery basis. These transactions involve a commitment by the Fund to purchase or sell securities for a predetermined price or yield, with payment and delivery taking place beyond the customary settlement period. When purchasing a security on a delayed delivery basis, the Fund assumes the rights and risks of ownership of the security, including the risk of price and yield fluctuations, and takes such fluctuations into account when determining its net asset value. The Fund may dispose of or renegotiate a delayed delivery transaction after it is entered into, and may sell when-issued securities before they are delivered, which may result in a capital gain or loss. When the Fund has sold a security on a delayed delivery basis, the Fund does not participate in future gains and losses with respect to the security. COLLATERALIZED DEBT OBLIGATIONS -- The Funds may invest in collateralized debt obligations ("CDOs"), which include collateralized loan obligations ("CLOs") and other similarly structured securities. CLOs are a type of asset-backed securities. A CLO is a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. CDOs may charge management fees and administrative expenses. For CDOs, the cashflows from the trust are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the "equity" tranche which bears the bulk of defaults from the bonds or loans in the trust and serves to protect the other, more senior tranches from default in all but the most severe circumstances. Since it is partially protected from defaults, a senior tranche from a CDO trust typically has a higher rating and lower yield than their underlying securities, and can be rated investment grade. Despite the protection from the equity tranche, CDO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults, as well as aversion to CDO securities as a class. The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the CDO in which a Fund invests. Normally, CLOs and other CDOs are privately offered and sold, and thus, are not registered under the securities laws. As a result, investments in CDOs may be characterized by the Funds as illiquid securities; however, an active dealer market may exist for CDOs allowing a CDO to qualify for Rule 144A transactions. In addition to the normal risks associated with fixed income securities (e.g., interest rate risk and default risk), CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) the Funds may - -------------------------------------------------------------------------------- 218 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 invest in CDOs that are subordinate to other classes; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results. ILLIQUID SECURITIES -- A security is considered illiquid if it cannot be sold or disposed of in the ordinary course of business within seven days or less for its approximate carrying value on the books of the Funds. Valuations of illiquid securities may differ significantly from the values that would have been used had an active market value for these securities existed. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- Dividends from net investment income are declared and paid to shareholders quarterly for the Large Cap, Large Cap Diversified Alpha, Large Cap Disciplined Equity, Large Cap Index, Small Cap, Small/Mid Cap Equity, Enhanced Income and Emerging Markets Debt Funds; declared daily and paid monthly for the Core Fixed Income, Long Duration, Extended Duration, High Yield Bond and Real Return Plus Funds; and declared and paid at least annually for the International Equity and World Equity Ex-US Funds. Dividends and distributions are recorded on the ex-dividend date. Any net realized capital gains will be distributed at least annually by the Funds. RESTRICTED SECURITIES -- At November 30, 2007, the following Funds owned private placement investments that were purchased through private offerings or acquired through initial public offerings and cannot be sold without prior registration under the Securities Act of 1933 or pursuant to an exemption therefrom. In addition, the Funds have generally agreed to further restrictions on the disposition of certain holdings as set forth in various agreements entered into in connection with the purchase of these investments. These investments are valued at fair value as determined in accordance with the procedures approved by the Board of Trustees. The acquisition dates of these investments, the enforceable right to acquire these securities, along with their cost and values at November 30, 2007, were as follows: Number Acquisition Right to Cost Market Value % of Net of Shares Date Acquire Date ($ Thousands) ($ Thousands) Assets - ------------------------------------------------------------------------------------------------------------------------- SMALL CAP FUND BA Energy PIPE 119,000 8/10/06 8/10/06 $ 1,004 $ 833 0.04% BA Energy Deal # 3 PIPE 30,500 4/30/07 4/30/07 221 214 0.01% BPZ Energy PIPE 205,289 5/7/07 5/7/07 1,179 2,340 0.13% Force Protection 166,100 12/19/06 12/19/06 1,952 1,796 0.10% NNN Realty Advisors 169,500 11/9/07 11/9/07 1,695 1,017 0.05% Oil Sands Quest PIPE 74,000 5/2/07 5/2/07 204 333 0.02% Orion Marine Group 139,600 5/3/07 5/3/07 1,890 1,989 0.11% Rentech Warrants 16,100 1/3/15 1/3/15 -- 12 0.00% Synenco Energy 27,419 8/24/05 8/24/05 317 204 0.01% -------- --------- ---------- $ 8,462 $ 8,738 0.47% SMALL/MID CAP EQUITY FUND BA Energy PIPE 80,500 8/10/06 8/10/06 $ 679 $ 564 0.03% BA Energy Deal # 3 PIPE 26,500 4/30/07 4/30/07 192 186 0.01% BPZ Energy PIPE 185,500 5/7/07 5/7/07 977 2,115 0.09% Force Protection 132,500 12/19/06 12/19/06 1,557 1,432 0.06% NNN Realty Advisors 237,000 11/9/07 11/9/07 2,180 1,422 0.06% Orion Marine Group 116,900 5/3/07 5/3/07 1,578 1,666 0.07% Rentech Warrants 13,800 1/3/15 1/3/15 -- 10 0.00% Synenco Energy 12,051 8/24/05 8/24/05 140 90 0.00% -------- --------- ---------- $ 7,303 $ 7,485 0.32% INVESTMENTS IN REAL ESTATE IN VESTMENT TRUSTS ("REITS") -- Dividend income is recorded based on the income included in distributions received from the REIT investments using published REIT reclassifications including some management estimates when actual amounts are not available. Distributions received in excess of this estimated amount are recorded as a reduction of the cost of investments or reclassified to capital gains. The actual amounts of income, return of capital, and capital gains are only determined by each REIT after its fiscal year-end, and may differ from the estimated amounts. 3. AGREEMENTS AND OTHER TRANSACTIONS WITH AFFILIATES ADMINISTRATION AND TRANSFER AGENCY AGREEMENTS --The Trust and SEI Investments Global Funds Services (the "Administrator") are parties to an Amended and Restated Administration and Transfer Agency Agreement dated December 10, 2003 under which the Administrator provides administrative and shareholder servicing for an annual fee of 0.05% of the average daily net assets of each Fund. For the six month period ended November 30, 2007, and until further notice, the Administrator has voluntarily agreed to waive all of its fee. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 219 Notes to Financial Statements (Unaudited) (Continued) NOVEMBER 30, 2007 INVESTMENT ADVISORY AGREEMENT -- SEI Investments Management Corporation ("SIMC") serves as investment adviser (the "Adviser") to each Fund. In connection with serving as investment adviser, SIMC is entitled to a fee that is calculated daily and paid monthly based on the average daily net assets of each Fund. SIMC has voluntarily agreed to waive a portion of its fee so that the total annual expenses of each Fund will not exceed certain voluntary expense limitations adopted by SIMC. These waivers may be terminated at any time. Accordingly, effective October 1, 2005, the advisory fee and voluntary expense limitations for Class A of each Fund are as follows: - -------------------------------------------------------------------------------- Advisory Voluntary Expense Fees Limitations - -------------------------------------------------------------------------------- Large Cap Fund 0.400% 0.260% Large Cap Diversified Alpha Fund 0.400 0.350 Large Cap Disciplined Equity Fund 0.400 0.220 Large Cap Index Fund 0.170 0.060 Small Cap Fund 0.650 0.540 Small/Mid Cap Equity Fund 0.650 0.500 International Equity Fund 0.505 0.390 World Equity Ex-US Fund 0.550 0.600 Enhanced Income Fund 0.450 0.440 Core Fixed Income Fund 0.300 0.140 High Yield Bond Fund 0.490 0.350 Long Duration Fund 0.300 0.200 Extended Duration Fund 0.300 0.200 Emerging Markets Debt Fund 0.850 0.550 Real Return Plus Fund 0.700 0.440 As of November 30, 2007, SIMC has entered into investment sub-advisory agreements with the following parties and pays the sub-advisers out of the fee that it receives from the Funds: - -------------------------------------------------------------------------------- Investment Sub-Adviser - -------------------------------------------------------------------------------- LARGE CAP FUND AllianceBernstein L.P. Aronson + Johnson + Ortiz, L.P. Delaware Management Company Enhanced Investment Technologies, LLC (Intech) Goldman Sachs Asset Management LSV Asset Management Montag & Caldwell, Inc. Quantitative Management Associates, LLC LARGE CAP DIVERSIFIED ALPHA FUND Analytic Investors, Inc. Aronson + Johnson + Ortiz, L.P. Delaware Management Company Enhanced Investment Technologies, LLC (Intech) Quantitative Management Associates, LLC Smith Breeden Associates, Inc. - -------------------------------------------------------------------------------- Investment Sub-Adviser - -------------------------------------------------------------------------------- LARGE CAP DISCIPLINED EQUITY FUND AlphaSimplex Group, LLC Analytic Investors, Inc. Enhanced Investment Technologies, LLC (Intech) Quantitative Management Associates, LLC Smith Breeden Associates, Inc. LARGE CAP INDEX FUND SSgA Funds Management, Inc. SMALL CAP FUND Artisan Partners Limited Partnership BlackRock Capital Management, Inc. David J. Greene and Company, LLC Delaware Management Company Integrity Asset Management, LLC Janus Capital Management LLC Lee Munder Investments Ltd. Los Angeles Capital Management and Equity Research, Inc. LSV Asset Management Martingale Asset Management, L.P. Mazama Capital Management, Inc. McKinley Capital Management Inc. PanAgora Asset Management, Inc. Robeco Investment Management, Inc. Security Capital Research and Management Incorporated Wellington Management Company, LLP SMALL/MID CAP EQUITY FUND BlackRock Capital Management, Inc. Delaware Management Company Integrity Asset Management, LLC Janus Capital Management LLC Lee Munder Investments, Ltd. Los Angeles Capital Management and Equity Research, Inc. LSV Asset Management Martingale Asset Management, L.P. Mazama Capital Management, Inc. PanAgora Asset Management, Inc. Security Capital Research and Management Incorporated Wellington Management Company, LLP INTERNATIONAL EQUITY FUND AllianceBernstein L.P. AXA Rosenberg Investment Management, Inc. Capital Guardian Trust Company Fuller & Thaler Asset Management, Inc. McKinley Capital Management Inc. Quantitative Management Associates, LLC Record Currency Management Limited Smith Breeden Associates, Inc. - -------------------------------------------------------------------------------- 220 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - -------------------------------------------------------------------------------- Investment Sub-Adviser - -------------------------------------------------------------------------------- WORLD EQUITY EX-US FUND AllianceBernstein L.P. AXA Rosenberg Investment Management, Inc. Capital Guardian Trust Company Fuller & Thaler Asset Management, Inc. McKinley Capital Management Inc. Quantitative Management Associates, LLC Record Currency Management Limited Rexiter Capital Management Limited Smith Breeden Associates, Inc. ENHANCED INCOME FUND Highland Capital Management L.P. Record Currency Management Limited Wellington Management Company, LLP CORE FIXED INCOME FUND ING Investment Management Co. Metropolitan West Asset Management LLC Wells Capital Management, Inc. Western Asset Management Company Western Asset Management Company Limited HIGH YIELD BOND FUND Ares Management LLC J.P. Morgan Investment Management, Inc. Nomura Corporate Research & Asset Management, Inc. LONG DURATION FUND Metropolitan West Asset Management LLC EXTENDED DURATION FUND Metropolitan West Asset Management LLC EMERGING MARKETS DEBT FUND Ashmore Investment Management Limited ING Investment Management Co. Stone Harbor Investment Partners LP REAL RETURN PLUS FUND Deutsche Investment Management Americas, Inc. First Quadrant, L.P. OTHER -- The Distribution Agreement between the Distributor and the Trust provides that the Distributor may receive compensation on fund transactions effected for the Trust in accordance with Securities and Exchange Commission ("SEC") rules. Accordingly, it is expected that fund transactions may result in brokerage commissions being paid to the Distributor. The SEC rules require that such commissions not exceed usual and customary commissions. Such commissions for the six month period ended November 30, 2007 were as follows ($ Thousands): Large Cap Fund $ 22 Small Cap Fund 184 Small/Mid Cap Equity Fund 141 International Equity Fund 75 World Equity Ex-US Fund 76 ---- $498 ==== Certain officers and/or trustees of the Trust are also officers of the Administrator or the Adviser. The Trust pays each unaffiliated Trustee an annual fee for attendance at quarterly, interim and committee meetings. Compensation of officers and affiliated Trustees of the Trust is paid by the Adviser or Administrator. LSV Asset Management (partially-owned subsidiary of SIMC) serves as a sub-adviser to the Large Cap, Small Cap and Small/Mid Cap Equity Funds. For this service LSV Asset Management is entitled to receive a fee from SIMC. Such fees for the six month period ended November 30, 2007 were as follows ($ Thousands): Large Cap Fund $ 38 Small Cap Fund 401 Small/Mid Cap Equity Fund 425 ---- $864 ==== FEES PAID INDIRECTLY -- The Funds may direct certain fund trades to the Distributor who pays a portion of the Fund's expenses. Accordingly, the expenses reduced, which were used to pay third party expenses, can be found on the Statement of Operations and the effect on the Fund's expense ratio, as a percentage of the Fund's average daily net assets for the six month period ended November 30, 2007, can be found on the Financial Highlights. INVESTMENT IN AFFILIATED COMPANIES -- The Funds may purchase securities of certain companies with which it is affiliated to the extent these companies are represented in its Index. The Funds may invest the cash collateral from the securities lending program in the SEI Liquidity Fund LP. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 221 Notes to Financial Statements (Unaudited) (Continued) NOVEMBER 30, 2007 4. CAPITAL SHARE TRANSACTIONS Capital Share Transactions for the Funds were as follows (Thousands): - ---------------------------------------------------------------------------------------------------------------------------- LARGE CAP LARGE CAP DIVERSIFIED DISCIPLINED LARGE CAP FUND ALPHA FUND EQUITY FUND - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/07 6/1/07 to 11/30/07 6/1/06 to 11/30/07 6/1/06 to 11/30/07 6/1/06 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- Class A: Shares Issued 561 1,317 9,279 33,976(1) 131,061(1) 103,185(1) Shares Issued in Lieu of Dividends and Distributions 251 678 336 519 6,480 23,565 Shares Redeemed (14,692) (15,154) (7,206)(2) (10,457) (47,501)(2) (61,085) Effect of Stock Split -- -- -- -- -- 439,286 - ---------------------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions (13,880) (13,159) 2,409 24,038 90,040 504,951 ============================================================================================================================ - ---------------------------------------------------------------------------------------------------------------------------- LARGE CAP SMALL/MID CAP INDEX FUND SMALL CAP FUND EQUITY FUND - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/07 6/1/07 to 11/30/07 6/1/06 to 11/30/07 6/1/06 to 11/30/07 6/1/06 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- Class A: Shares Issued 85 280 3,634 14,887 52,835(1) 21,452 Shares Issued in Lieu of Dividends and Distributions 25 78 424 15,994 462 8,913 Shares Redeemed (244) (524) (8,479) (26,642) (10,033) (11,013) Effect of Stock Split -- -- -- -- -- 96,339 - ---------------------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions (134) (166) (4,421) 4,239 43,264 115,691 ============================================================================================================================ - ---------------------------------------------------------------------------------------------------------------------------- INTERNATIONAL WORLD EQUITY ENHANCED EQUITY FUND EX-US FUND INCOME FUND(3) - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/07 6/1/07 to 11/30/07 6/1/06 to 11/30/07 6/1/06 to 11/30/07 12/14/06 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- Class A: Shares Issued 5,284 13,259 61,794 71,102 13,318 12,291 Shares Issued in Lieu of Dividends and Distributions -- 28,933 -- 6,384 433 171 Shares Redeemed (17,510) (34,641) (11,873) (18,759) (2,439) (286) - ---------------------------------------------------------------------------------------------------------------------------- Increase (Decrease) in Net Assets Derived from Class A Transactions (12,226) 7,551 49,921 58,727 11,312 12,176 ============================================================================================================================ (1) Includes subscriptions as a result of in-kind transfers of securities (see Note 8). (2) Includes redemptions as a result of in-kind transfers of securities (see Note 8). (3) The Enhanced Income Fund commenced operations on December 14, 2006. Amounts designated as "--" are zero or have been rounded to zero. - -------------------------------------------------------------------------------- 222 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 - ---------------------------------------------------------------------------------------------------------------------------- LONG CORE FIXED HIGH YIELD DURATION INCOME FUND BOND FUND FUND - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/07 6/1/07 to 11/30/07 6/1/06 to 11/30/07 6/1/06 to 11/30/07 6/1/06 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- Class A: Shares Issued 112,354 200,308 24,819 39,242 1,409 1,075 Shares Issued in Lieu of Dividends and Distributions 16,045 27,065 5,118 8,625 547 954 Shares Redeemed (70,597) (109,460) (6,996) (13,284) (1,392) (394) - ---------------------------------------------------------------------------------------------------------------------------- Increase in Net Assets Derived from Class A Transactions 57,802 117,913 22,941 34,583 564 1,635 ============================================================================================================================ - ---------------------------------------------------------------------------------------------------------------------------- EXTENDED EMERGING REAL DURATION MARKETS RETURN FUND DEBT FUND PLUS FUND(1) - ---------------------------------------------------------------------------------------------------------------------------- 6/1/07 6/1/07 6/1/07 to 11/30/07 6/1/06 to 11/30/07 6/1/06 to 11/30/07 12/14/06 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 (Unaudited) to 5/31/07 - ---------------------------------------------------------------------------------------------------------------------------- Class A: Shares Issued 36,401 15,142 20,332 27,399 10,644 22,760 Shares Issued in Lieu of Dividends and Distributions 1,467 1,544 2,527 3,858 -- 238 Shares Redeemed (2,837) (1,733) (4,055) (5,979) (3,900) (1,055) - ---------------------------------------------------------------------------------------------------------------------------- Increase in Net Assets Derived from Class A Transactions 35,031 14,953 18,804 25,278 6,744 21,943 ============================================================================================================================ (1) The Real Return Plus Fund commenced operations on December 14, 2006. 5. INVESTMENT TRANSACTIONS The cost of security purchases and proceeds from the sale and maturities of securities other than temporary cash investments, during the six month period ended November 30, 2007, were as follows: - ------------------------------------------------------------------------------------- U.S. Gov't Other Total ($ Thousands) ($ Thousands) ($ Thousands) - ------------------------------------------------------------------------------------- LARGE CAP FUND Purchases $ -- $ 143,835 $ 143,835 Sales -- 414,111 414,111 LARGE CAP DIVERSIFIED ALPHA FUND* Purchases 70,101 394,520 464,621 Sales 92,911 321,558 414,469 LARGE CAP DISCIPLINED EQUITY FUND* Purchases 1,207,716 5,412,234 6,619,950 Sales 1,694,761 3,925,540 5,620,301 LARGE CAP INDEX FUND Purchases -- 21,687 21,687 Sales -- 42,927 42,927 SMALL CAP FUND Purchases -- 1,025,949 1,025,949 Sales -- 1,093,123 1,093,123 SMALL/MID CAP FUND* Purchases -- 1,502,203 1,502,203 Sales -- 880,028 880,028 INTERNATIONAL EQUITY FUND Purchases 579,814 500,511 1,080,325 Sales 557,141 686,593 1,243,734 - ------------------------------------------------------------------------------------- U.S. Gov't Other Total ($ Thousands) ($ Thousands) ($ Thousands) - ------------------------------------------------------------------------------------- WORLD EQUITY EX-US FUND Purchases $ 1,064,432 $1,406,872 $ 2,471,304 Sales 994,995 707,053 1,702,048 ENHANCED INCOME FUND Purchases 17,596 70,563 88,159 Sales 15,934 3,270 19,204 CORE FIXED INCOME FUND Purchases 12,542,806 1,350,632 13,893,438 Sales 12,204,404 889,776 13,094,180 HIGH YIELD BOND FUND Purchases -- 501,937 501,937 Sales -- 316,139 316,139 LONG DURATION BOND FUND Purchases 6,231 45,369 51,600 Sales 10,480 29,250 39,730 EXTENDED DURATION BOND FUND Purchases 14,566 216,994 231,560 Sales 15,165 56,611 71,776 EMERGING MARKETS DEBT FUND Purchases -- 372,061 372,061 Sales -- 235,717 235,717 REAL RETURN PLUS FUND Purchases 121,641 -- 121,641 Sales 54,554 -- 54,554 * Includes in-kind transactions (see Note 8). - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 223 Notes to Financial Statements (Unaudited) (Continued) NOVEMBER 30, 2007 6. FEDERAL TAX INFORMATION It is each Fund's intention to continue to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code and distribute all of its taxable income (including net capital gains). Accordingly, no provision for Federal income taxes is required. Dividends from net investment income and distributions from net realized capital gains are determined in accordance with U.S. Federal income tax regulations, which may differ from those amounts determined under accounting principles generally accepted in the United States of America. These book/tax differences are either temporary or permanent in nature. To the extent these differences are permanent, they are charged or credited to paid-in capital, undistributed net investment income or accumulated net realized gain, as appropriate, in the period that the differences arise. The tax character of dividends and distributions paid during the last two years or periods ended May 31, 2007 were as follows: - ------------------------------------------------------------------------------------------- Ordinary Long-term Income Capital Gain Total ($ Thousands) ($ Thousands) ($ Thousands) - ------------------------------------------------------------------------------------------- Large Cap Fund 2007 $ 12,254 $ -- $ 12,254 2006 19,617 -- 19,617 Large Cap Diversified Alpha Fund 2007 5,094 1,505 6,599 2006 167 -- 167 Large Cap Disciplined Equity Fund 2007 237,780 132,166 369,946 2006 172,080 108,577 280,657 - ------------------------------------------------------------------------------------------- Ordinary Long-term Income Capital Gain Total ($ Thousands) ($ Thousands) ($ Thousands) - ------------------------------------------------------------------------------------------- Large Cap Index Fund 2007 $ 7,885 $ 1,949 $ 9,834 2006 6,360 3,238 9,598 Small Cap Fund 2007 86,056 164,468 250,524 2006 45,737 93,718 139,455 Small/Mid Cap Equity Fund 2007 60,501 67,293 127,794 2006 34,951 19,445 54,396 International Equity Fund 2007 146,614 238,163 384,777 2006 49,222 14,153 63,375 World Equity Ex-US Fund 2007 80,977 10,314 91,291 2006 6,142 -- 6,142 Enhanced Income Fund 2007 1,709 -- 1,709 Core Fixed Income Fund 2007 279,194 -- 279,194 2006 212,264 1,463 213,727 High Yield Bond Fund 2007 89,624 -- 89,624 2006 27,352 -- 27,352 Long Duration Fund 2007 9,267 -- 9,267 2006 8,254 3 8,257 Extended Duration Fund 2007 14,980 -- 14,980 2006 16,599 15 16,614 Emerging Markets Debt Fund 2007 41,623 -- 41,623 2006 5,375 -- 5,375 Real Return Plus Fund 2007 2,421 -- 2,421 As of May 31, 2007, the components of Distributable Earnings/(Accumulated Losses) were as follows: - -------------------------------------------------------------------------------------------------------------------- Undistributed Undistributed Capital Post Post Ordinary Long-Term Loss October October Income Capital Gain Carryforwards Losses Currency Losses ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------------------------------------------- Large Cap Fund $ 2,077 $ -- $ (155,287) $ -- $ -- Large Cap Diversified Alpha Fund 11,981 4,805 -- -- -- Large Cap Disciplined Equity Fund 241,227 182,292 -- -- -- Large Cap Index Fund 2,089 3,432 -- -- -- Small Cap Fund 52,986 56,768 -- -- (10) Small/Mid Cap Equity Fund 47,893 43,950 -- -- (31) International Equity Fund 136,790 75,887 -- -- -- World Equity Ex-US Fund 118,246 37,914 -- -- -- Enhanced Income Fund 1,751 161 -- -- -- Core Fixed Income Fund 25,163 -- (41,415) (5,288) (1,027) High Yield Bond Fund 15,553 1,453 -- -- -- Long Duration Fund 803 -- (2,250) (2,997) -- Extended Duration Fund 1,659 -- (4,642) (4,342) -- Emerging Markets Debt Fund 20,631 1,133 -- -- -- Real Return Plus Fund 4,164 457 -- -- -- - --------------------------------------------------------------------------------------------- Unrealized Other Total Appreciation Temporary Distributable Earnings/ (Depreciation) Differences (Accumulated Losses) ($ Thousands) ($ Thousands) ($ Thousands) - --------------------------------------------------------------------------------------------- Large Cap Fund $ 135,651 $ (621) $ (18,180) Large Cap Diversified Alpha Fund 49,102 (6,556) 59,332 Large Cap Disciplined Equity Fund 981,637 (1,165) 1,403,991 Large Cap Index Fund 143,684 (442) 148,763 Small Cap Fund 374,424 997 485,165 Small/Mid Cap Equity Fund 283,992 (2,229) 373,575 International Equity Fund 335,792 239 548,708 World Equity Ex-US Fund 311,213 (2,818) 464,555 Enhanced Income Fund 155 (383) 1,684 Core Fixed Income Fund (50,635) (23,955) (97,157) High Yield Bond Fund 25,985 (10,611) 32,380 Long Duration Fund (5,246) (1,839) (11,529) Extended Duration Fund (30,797) (4,304) (42,426) Emerging Markets Debt Fund 29,230 (4,689) 46,305 Real Return Plus Fund (1,888) (1,483) 1,250 - -------------------------------------------------------------------------------- 224 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Post-October losses represent losses realized on investment transactions from November 1, 2006 through May 31, 2007 that, in accordance with Federal income tax regulations, the Funds may elect to defer and treat as having arisen in the following fiscal year. For Federal income tax purposes, capital loss carryforwards may be carried forward and applied against future capital gains as follows: - -------------------------------------------------------------------------------------------- Total Capital Loss Expires Expires Expires Carryforwards 2011 2014 2015 11/30/07 ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------------------- Large Cap Fund $ 155,287 $ -- $ -- $ 155,287 Core Fixed Income Fund -- 15,381 26,034 41,415 Long Duration Fund -- -- 2,250 2,250 Extended Duration Fund -- -- 4,642 4,642 During the year ended May 31, 2007, the Large Cap Fund utilized $47,566,633 of capital loss carryforwards, to offset capital gains. For Federal income tax purposes, the cost of securities owned at November 30, 2007, and the net realized gains or losses on securities sold for the period were not materially different from amounts reported for financial reporting purposes, primarily due to wash sales which cannot be used for Federal income tax purposes in the current year and have been deferred for use in future years. The aggregate gross unrealized appreciation and depreciation on total investments held by the Funds at November 30, 2007, was as follows: - --------------------------------------------------------------------------------------------- Net Unrealized Federal Appreciated Depreciated Appreciation Tax Cost Securities Securities (Depreciation) ($ Thousands) ($ Thousands) ($ Thousands) ($ Thousands) - --------------------------------------------------------------------------------------------- Large Cap Fund $ 361,340 $ 88,071 $ (16,113) $ 71,958 Large Cap Diversified Alpha Fund 501,454 42,971 (19,363) 23,608 Large Cap Disciplined Equity Fund 8,430,712 900,137 (232,462) 667,675 Large Cap Index Fund 295,367 137,488 (11,849) 125,639 Small Cap Fund 2,302,969 249,739 (173,291) 76,448 Small/Mid Cap Equity Fund 2,752,592 227,139 (191,502) 35,637 International Equity Fund 1,460,160 303,558 (35,666) 267,892 World Equity Ex-US Fund 2,787,704 389,373 (59,718) 329,655 Enhanced Income Fund 230,605 377 (7,063) (6,686) Core Fixed Income Fund 9,063,205 134,009 (58,967) 75,042 High Yield Bond Fund 1,600,138 8,260 (67,681) (59,421) Long Duration Fund 198,197 1,723 (8,393) (6,670) Extended Duration Fund 706,516 3,666 (24,031) (20,365) Emerging Markets Debt Fund 977,398 29,575 (19,569) 10,006 Real Return Plus Fund 298,414 14,131 -- 14,131 7. CONCENTRATION/RISKS In the normal course of business, the Funds enter into contracts that provide general indemnifications by the Fund to the counterparty to the contract. The Funds' maximum exposure under these arrangements is dependent on future claims that may be made against the Funds and, therefore, cannot be estimated; however, based on experience, the risk of loss from such claims is considered remote. The market values of the Core Fixed Income, Long Duration, Extended Duration and High Yield Bond Funds' investments may change in response to interest rate changes and other factors. During periods of falling interest rates, the values of fixed income securities generally rise. Conversely, during periods of rising interest rates, the values of such securities generally decline. Changes by recognized rating agencies in the ratings of any fixed income security and in the ability of an issuer to make payments of interest and principal may also affect the value of these investments. The International Equity, World Equity Ex-US and Emerging Markets Debt Funds concentrate their investments in securities of foreign issuers in various countries. These investments may involve certain considerations and risks not typically associated with investments in the United States, as a result of, among other factors, the possibility of future political and economic developments and the level of governmental supervision and regulation of securities markets in the respective countries. 8. IN-KIND TRANSFERS OF SECURITIES During the six month period ended November 30, 2007, the Large Cap Diversified Alpha, Large Cap Disciplined Equity, and Small/Mid Cap Equity Funds issued (redeemed) shares of beneficial interest in exchange for securities. The securities were transferred at their current value on the date of such transactions. - -------------------------------------------------------------------------------- Shares Issued Value Gain (Loss) (Redeemed) ($ Thousands) ($ Thousands) - -------------------------------------------------------------------------------- Large Cap Diversified Alpha Fund 08/31/07 (4,392,890) $ (43,929) $ (2,046) Large Cap Disciplined Equity Fund 06/29/07 478,248 6,739 -- 08/31/07 (90,947,378) (909,474) (32,482) 10/31/07 1,513,388 21,505 -- Small/Mid Cap Equity Fund 10/26/07 1,208,695 17,357 -- - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 225 Notes to Financial Statements (Unaudited) (Concluded) NOVEMBER 30, 2007 During the year ended May 31, 2007, the Large Cap Disciplined Equity and Large Cap Diversified Alpha Funds issued shares of beneficial interest in exchange for securities. The securities were transferred at their current value on the date of such transactions. - -------------------------------------------------------------------------------- Shares Value Issued ($ Thousands) - -------------------------------------------------------------------------------- Large Cap Diversified Alpha Fund 09/29/06 928,885 $ 9,614 Large Cap Disciplined Equity Fund 06/30/06 155,459 19,260 07/31/06 118,902 14,756 09/29/06 364,480 47,218 03/30/07 584,267 7,794 04/16/07 137,659 1,897 9. SECURITIES LENDING Each Fund may lend portfolio securities to brokers, dealers and other financial organizations that meet capital and other credit requirements or other criteria established by the Trust's Board of Trustees. These loans may not exceed 33 1/3% of the total asset value of the Fund (including the loan collateral). No Fund will lend portfolio securities to its investment adviser, sub-adviser or their affiliates unless it has applied for and received specific authority to do so from the SEC. Loans of portfolio securities will be fully collateralized by cash, letters of credit or U.S. Government securities, and the collateral will be maintained in an amount equal to at least 100% of the current market value of the loaned securities by marking to market daily, although the borrower will be required to deliver collateral of 102% and 105% of the market value of borrowed securities for domestic and foreign securities, respectively. Although the risk of lending is mitigated by the collateral, the Fund could experience a delay in recovering its securities and a possible loss of income or value if the borrower fails to return them. Funds received cash as collateral for securities on loan and made investments. Investments purchased with cash collateral are presented on the schedule of investments for each Fund. 10. NEW ACCOUNTING PRONOUNCEMENTS In June 2006, the Financial Accounting Standards Board ("FASB") issued FASB interpretation 48 ("FIN 48"), "Accounting for Uncertainty in Income Taxes." This standard defines the threshold for recognizing the benefits of tax-return positions in the financial statements as "more-likely-than-not" to be sustained by the taxing authority and requires measurement of a tax position meeting the more-likely-than-not criterion, based on the largest benefit that is more than 50 percent likely to be realized. FIN 48 is effective as of the beginning of the first fiscal year beginning after December 15, 2006. At adoption, companies must adjust their financial statements to reflect only those tax positions that are more-likely-than-not to be sustained as of the adoption date. Adoption of FIN 48 is required for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. Based on its analysis, management has determined that the adoption of FIN 48 did not have a material impact to the Fund's financial statements upon adoption. However, management's conclusions regarding FIN 48 may be subject to review and adjustment at a later date based on factors including, but not limited to, further implementation guidance expected from the FASB, and on-going analyses of and changes to tax laws, regulations and interpretations thereof. In September 2006, the FASB issued Statement on Financial Accounting Standards ("SFAS") No. 157, "Fair Value Measurements." This standard establishes a single authoritative definition of fair value, sets out a framework for measuring fair value and requires additional disclosures about fair value measurements. SFAS No. 157 applies to fair value measurements already required or permitted by existing standards. SFAS No. 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007 and interim periods within those fiscal years. The changes to current generally accepted accounting principles from the application of this Statement relate to the definition of fair value, the methods used to measure fair value, and the expanded disclosures about fair value measurements. As of November 30, 2007, the Funds do not believe the adoption of SFAS No. 157 will impact the amounts reported in the financial statements, however, additional disclosures may be required about the inputs used to develop the measurements and the effect of certain of the measurements reported in the financial statements for a fiscal period. 11. OTHER MATTERS Due to volatility in the fixed income and equity markets, the market value of some of the Fund's holdings may currently be lower than shown in the Schedules of Investments ("SOI"). The values shown in the SOI's were the market values as of November 30, 2007 and do not reflect any market events after November 30, 2007. - -------------------------------------------------------------------------------- 226 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Disclosure of Fund Expenses (Unaudited) NOVEMBER 30, 2007 All mutual funds have operating expenses. As a shareholder of a fund, your investment is affected by these ongoing costs, which include (among others) costs for portfolio management, administrative services, and shareholder reports like this one. It is important for you to understand the impact of these costs on your investment returns. Operating expenses such as these are deducted from the fund's gross income and directly reduce your final investment return. These expenses are expressed as a percentage of the fund's average net assets; this percentage is known as the fund's expense ratio. The following examples use the expense ratio and are intended to help you understand the ongoing costs (in dollars) of investing in your Fund and to compare these costs with those of other mutual funds. The examples are based on an investment of $1,000 made at the beginning of the period shown and held for the entire period. The table on the next page illustrates your Fund's costs in two ways: o ACTUAL FUND RETURN. This section helps you to estimate the actual expenses after fee waivers that your Fund incurred over the period. The "Expenses Paid During Period" column shows the actual dollar expense cost incurred by a $1,000 investment in the Fund, and the "Ending Account Value" number is derived from deducting that expense cost from the Fund's gross investment return. You can use this information, together with the actual amount you invested in the Fund, to estimate the expenses you paid over that period. Simply divide your actual starting account value by $1,000 to arrive at a ratio (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply that ratio by the number shown for your Fund under "Expenses Paid During Period." o HYPOTHETICAL 5% RETURN. This section helps you compare your Fund's costs with those of other mutual funds. It assumes that the Fund had an annual 5% return before expenses during the year, but that the expense ratio (Column 3) is unchanged. This example is useful in making comparisons because the Securities and Exchange Commission requires all mutual funds to make this 5% calculation. You can assess your Fund's comparative cost by comparing the hypothetical result for your Fund in the "Expense Paid During Period" column with those that appear in the same charts in the shareholder reports for other funds. NOTE: Because the return is set at 5% for comparison purposes -- NOT your Fund's actual return -- the account values shown do not apply to your specific investment. - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 227 Disclosure of Fund Expenses (Unaudited) (Concluded) NOVEMBER 30, 2007 BEGINNING ENDING EXPENSE ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 6/1/07 11/30/07 RATIOS PERIOD* - ------------------------------------------------------------------------------------- LARGE CAP FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 983.60 0.26% $ 1.29 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,023.70 0.26% $ 1.32 - ------------------------------------------------------------------------------------- LARGE CAP DIVERSIFIED ALPHA FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 961.60 0.57% $ 2.80 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.15 0.57% $ 2.88 - ------------------------------------------------------------------------------------- LARGE CAP DISCIPLINED EQUITY FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 955.00 0.20% $ 1.00 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,023.98 0.20% $ 1.03 - ------------------------------------------------------------------------------------- LARGE CAP INDEX FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 974.30 0.06% $ 0.30 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,024.70 0.06% $ 0.30 - ------------------------------------------------------------------------------------- SMALL CAP FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 900.30 0.52% $ 2.47 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.40 0.52% $ 2.63 - ------------------------------------------------------------------------------------- SMALL/MID CAP EQUITY FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 904.70 0.49% $ 2.33 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.55 0.49% $ 2.48 - ------------------------------------------------------------------------------------- INTERNATIONAL EQUITY FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 994.40 0.41% $ 2.04 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.95 0.41% $ 2.07 - ------------------------------------------------------------------------------------- WORLD EQUITY EX-US FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,028.20 0.60% $ 3.04 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.00 0.60% $ 3.03 BEGINNING ENDING EXPENSE ACCOUNT ACCOUNT ANNUALIZED PAID VALUE VALUE EXPENSE DURING 6/1/07 11/30/07 RATIOS PERIOD* - ------------------------------------------------------------------------------------- ENHANCED INCOME FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 964.40 0.44% $ 2.16 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.80 0.44% $ 2.23 - ------------------------------------------------------------------------------------- CORE FIXED INCOME FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,048.70 0.14% $ 0.72 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,024.30 0.14% $ 0.71 - ------------------------------------------------------------------------------------- HIGH YIELD BOND FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 970.90 0.35% $ 1.72 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,023.25 0.35% $ 1.77 - ------------------------------------------------------------------------------------- LONG DURATION FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,061.90 0.20% $ 1.03 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,024.00 0.20% $ 1.01 - ------------------------------------------------------------------------------------- EXTENDED DURATION FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,154.30 0.20% $ 1.08 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,024.00 0.20% $ 1.01 - ------------------------------------------------------------------------------------- EMERGING MARKETS DEBT FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,010.80 0.55% $ 2.76 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.25 0.55% $ 2.78 - ------------------------------------------------------------------------------------- REAL RETURN PLUS FUND - ------------------------------------------------------------------------------------- ACTUAL FUND RETURN Class A Shares $ 1,000.00 $ 1,092.10 0.44% $ 2.30 HYPOTHETICAL 5% RETURN Class A Shares $ 1,000.00 $ 1,022.80 0.44% $ 2.23 * Expenses are equal to the Fund's annualized expense ratio multiplied by the average account value over the period, multiplied by 183/366 (to reflect one-half year period shown). - -------------------------------------------------------------------------------- 228 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Board of Trustees Considerations in Approving the Advisory and Sub-Advisory Agreements (Unaudited) NOVEMBER 30, 2007 The SEI Institutional Investments Trust (the "Trust") and SEI Investments Management Corporation ("SIMC") have entered into an investment advisory agreement (the "Advisory Agreement"). Pursuant to the Advisory Agreement, SIMC oversees the investment advisory services provided to the series of the Trust (the "Funds") and may manage the cash portion of the Funds' assets. Pursuant to separate sub-advisory agreements (the "Sub-Advisory Agreements" and, together with the Advisory Agreement, the "Investment Advisory Agreements") with SIMC, and under the supervision of SIMC and the Trust's Board of Trustees (the "Board"), the Sub-Advisers are responsible for the day-to-day investment management of all or a discrete portion of the assets of the Funds. The Sub-Advisers also are responsible for managing their employees who provide services to these Funds. The Sub-Advisers are selected based primarily upon the research and recommendations of SIMC, which evaluates quantitatively and qualitatively the Sub-Advisers' skills and investment results in managing assets for specific asset classes, investment styles and strategies. The Investment Company Act of 1940, as amended (the "1940 Act") requires that the initial approval of, as well as the continuation of, the Funds' Investment Advisory Agreements must be specifically approved: (i) by the vote of the Board of Trustees or by a vote of the shareholders of the Funds; and (ii) by the vote of a majority of the Trustees who are not parties to the Investment Advisory Agreements or "interested persons" of any party (the "Independent Trustees"), cast in person at a meeting called for the purpose of voting on such approval. In connection with their consideration of such approvals, the Funds' Trustees must request and evaluate, and SIMC and the Sub-Advisers are required to furnish, such information as may be reasonably necessary to evaluate the terms of the Investment Advisory Agreements. In addition, the Securities and Exchange Commission ("SEC") takes the position that, as part of their fiduciary duties with respect to a mutual fund's fees, mutual fund boards are required to evaluate the material factors applicable to a decision to approve an Investment Advisory Agreement. Consistent with these responsibilities, the Trust's Board of Trustees calls and holds meetings each year that are dedicated to considering whether to renew the Investment Advisory Agreements between the Trust and SIMC and SIMC and the Sub-Advisers with respect to the Funds of the Trust. In preparation for these meetings, the Board requests and reviews a wide variety of materials provided by SIMC and the Sub-Advisers, including information about SIMC's and the Sub-Advisers' affiliates, personnel and operations. The Board also receives extensive data provided by third parties. This information is in addition to the detailed information about the Funds that the Board reviews during the course of each year, including information that relates to Fund operations and Fund performance. The Trustees also receive a memorandum from Fund counsel and independent counsel to the Independent Trustees regarding the responsibilities of Trustees in connection with their consideration of whether to approve the Trust's Investment Advisory Agreements. Finally, the Independent Trustees receive advice from independent counsel to the Independent Trustees, meet in executive session outside the presence of Fund management and participate in question and answer sessions with representatives of SIMC and the Sub-Advisers. Specifically, the Board requested and received written materials from SIMC and the Sub-Advisers regarding: (a) the quality of SIMC's and the Sub-Advisers' investment management and other services; (b) SIMC's and the Sub-Advisers' investment management personnel; (c) SIMC's and the Sub-Advisers' operations and financial condition; (d) SIMC's and the Sub-Advisers' brokerage practices (including any soft dollar arrangements) and investment strategies; (e) the level of the advisory fees that SIMC and the Sub-Advisers charge the Funds compared with the fees each charge to comparable mutual funds; (f) the Funds' overall fees and operating expenses compared with similar mutual funds; (g) the level of SIMC's and the Sub-Advisers' profitability from their Fund-related operations; (h) SIMC's and the Sub-Advisers' compliance systems; (i) SIMC's and the Sub-Advisers' policies on and compliance procedures for personal securities transactions; (j) SIMC's and the Sub-Advisers' reputation, expertise and resources in domestic and/or international financial markets; and (k) the Funds' performance compared with similar mutual funds. At the March 14, 2007, June 28-29, 2007 and September 19-20, 2007 meetings of the Board of Trustees, the Trustees, including a majority of the Independent Trustees, approved the Investment Advisory Agreements and approved the selection of SIMC and the Sub-Advisers to act in their respective capacities for the Funds. The Board's approval was based on its consideration and evaluation of a variety of specific factors discussed at the meetings and at prior meetings, including: o the nature, extent and quality of the services provided to the Funds under the Investment Advisory Agreements, including the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds; o the Funds' investment performance and how it compared to that of other comparable mutual funds; o the Funds' expenses under each Investment Advisory Agreement and how those expenses compared to those of other comparable mutual funds; - -------------------------------------------------------------------------------- SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 229 Board of Trustees Considerations in Approving the Advisory and Sub-Advisory Agreements (Concluded) (Unaudited) NOVEMBER 30, 2007 o the profitability of SIMC and the Sub-Advisers and their affiliates with respect to the Funds, including both direct and indirect benefits accruing to SIMC and the Sub-Advisers and their affiliates; and o the extent to which economies of scale would be realized as the Funds grow and whether fee levels in the Investment Advisory Agreements reflect those economies of scale for the benefit of Fund investors. NATURE, EXTENT AND QUALITY OF SERVICES. The Board of Trustees considered the nature, extent and quality of the services provided by SIMC and the Sub-Advisers to the Funds and the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds. In this regard, the Trustees evaluated, among other things, SIMC's and the Sub-Advisers' personnel, experience, track record and compliance program. The Trustees found the level of SIMC's professional staff and culture of compliance satisfactory. Following evaluation, the Board concluded that, within the context of its full deliberations, the nature, extent and quality of services provided by SIMC and the Sub-Advisers to the Funds and the resources of SIMC and the Sub-Advisers and their affiliates dedicated to the Funds supported renewal of the Investment Advisory Agreements. FUND PERFORMANCE. The Board of Trustees considered Fund performance in determining whether to renew the Investment Advisory Agreements. Specifically, the Trustees considered the Funds' performance relative to their peer groups and appropriate indices/benchmarks, in light of total return, yield and market trends. As part of this review, the Trustees considered the composition of each peer group and selection criteria. In evaluating performance, the Trustees considered both market risk and shareholder risk expectations for the Funds. The Trustees found Fund performance satisfactory, and where performance was below the benchmark, the Trustees were satisfied that appropriate steps were being taken. Following evaluation, the Board concluded that, within the context of its full deliberations, the performance of the Funds supported renewal of the Investment Advisory Agreements. FUND EXPENSES. With respect to the Funds' expenses under the Investment Advisory Agreements, the Trustees considered the rate of compensation called for by the Investment Advisory Agreements and the Funds' net operating expense ratio in comparison to those of other comparable mutual funds. The Trustees also considered information about average expense ratios of comparable mutual funds in the Funds' respective peer groups. The Trustees further considered the fact that the comparative fee analysis either showed that the various fees were below average or that there was a reasonable basis for the fee level. Finally, the Trustees considered the effects of SIMC's voluntary waiver of management and other fees and the Sub-Advisers' fees to prevent total Fund expenses from exceeding a specified cap and that SIMC and the Sub-Advisers, through waivers, have maintained the Funds' net operating expenses at competitive levels for their respective distribution channels. Following evaluation, the Board concluded that, within the context of its full deliberations, the expenses of the Funds are reasonable and supported renewal of the Investment Advisory Agreements. PROFITABILITY. With regard to profitability, the Trustees considered all compensation flowing to SIMC and the Sub-Adviser and their affiliates, directly or indirectly. The Trustees considered whether the varied levels of compensation and profitability under the Investment Advisory Agreements and other service agreements were reasonable and justified in light of the quality of all services rendered to the Funds by SIMC and the Sub-Advisers and their affiliates. The Trustees found that profitability was reasonable and that the margin was not increasing despite growth in assets. When considering the profitability of the Sub-Advisers, the Board took into account the fact that the Sub-Advisers are compensated by SIMC, and not by the Funds directly, and such compensation with respect to any Sub-Adviser reflects an arms-length negotiation between the Sub-Adviser and SIMC. Based on this evaluation, the Board concluded that, within the context of its full deliberations, the profitability of SIMC and the Sub-Advisers are reasonable and supported renewal of the Investment Advisory Agreements. ECONOMIES OF SCALE. The Trustees considered the existence of any economies of scale and whether those were passed along to the Funds' shareholders through a graduated investment advisory fee schedule or other means, including any fee waivers by SIMC and its affiliates. Based on this evaluation, the Board concluded that, within the context of its full deliberations, the Funds obtain reasonable benefit from economies of scale. Based on the Trustees' deliberation and their evaluation of the information described above, the Board, including all of the Independent Trustees, unanimously approved the continuation of the Investment Advisory Agreements and concluded that the compensation under the Investment Advisory Agreements is fair and reasonable in light of such services and expenses and such other matters as the Trustees considered to be relevant in the exercise of their reasonable judgment. In the course of their deliberations, the Trustees did not identify any particular information that was all-important or controlling. - -------------------------------------------------------------------------------- 230 SEI Institutional Investments Trust/Semi-Annual Report/November 30, 2007 Notes Notes SEI INSTITUTIONAL INVESTMENTS TRUST SEMI-ANNUAL REPORT NOVEMBER 30, 2007 Robert A. Nesher, CHAIRMAN TRUSTEES William M. Doran F. Wendell Gooch* James M. Storey George J. Sullivan, Jr. Rosemarie B. Greco Nina Lesavoy James M. Williams Mitchell A. Johnson * Retired as of December 5, 2007. OFFICERS Robert A. Nesher PRESIDENT AND CHIEF EXECUTIVE OFFICER Stephen F. Panner CONTROLLER AND CHIEF FINANCIAL OFFICER Russell Emery CHIEF COMPLIANCE OFFICER Timothy D. Barto VICE PRESIDENT, SECRETARY Sofia A. Rosala VICE PRESIDENT, ASSISTANT SECRETARY James Ndiaye VICE PRESIDENT, ASSISTANT SECRETARY Michael T. Pang VICE PRESIDENT, ASSISTANT SECRETARY John J. McCue VICE PRESIDENT Nicole Welch ANTI-MONEY LAUNDERING COMPLIANCE OFFICER INVESTMENT ADVISER SEI Investments Management Corporation ADMINISTRATOR SEI Investments Global Funds Services DISTRIBUTOR SEI Investments Distribution Co. LEGAL COUNSEL Morgan, Lewis & Bockius LLP INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM KPMG LLP This report and the financial statements contained herein are submitted for the general information of the shareholders of the Trust and must be preceded or accompanied by a current prospectus. Shares of the Funds are not deposits or obligations of, or guaranteed or endorsed by, any bank. The shares are not federally insured by the Federal Deposit Insurance Corporation (FDIC), the Federal Reserve Board, or any other government agency. Investment in the shares involves risk, including the possible loss of principal. FOR MORE INFORMATION CALL 1 800 DIAL SEI (1 800 342 5734) SEI NEW WAYS. NEW ANSWERS.(R) SEI Investments Distribution Co. Oaks, PA 19456 1.800.DIAL.SEI (1.800.342.5734) SEI-F-120 (11/07) ITEM 2. CODE OF ETHICS. Not applicable for semi-annual report. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable for semi-annual report. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Not applicable for semi-annual report. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable to open-end management investment companies. ITEM 6. SCHEDULE OF INVESTMENTS. Not applicable. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to open-end management investment companies. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. Effective for closed-end management investment companies for fiscal years ending on or after December 31, 2005 ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable to open-end management investment companies. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. The Trust has a standing Nominating Committee (the "Committee") currently consisting of the Independent Trustees. The Committee is responsible for evaluating and recommending nominees for election to the Trust's Board of Trustees (the "Board"). Pursuant to the Committee's Charter, adopted on June 18th 2004, the Committee will review all shareholder recommendations for nominations to fill vacancies on the Board if such recommendations are submitted in writing and addressed to the Committee at the Trust's office. ITEM 11. CONTROLS AND PROCEDURES. (a) The certifying officers, whose certifications are included herewith, have evaluated the registrant's disclosure controls and procedures within 90 days of the filing date of this report. Based on their evaluation, the certifying officers have concluded that the registrant's disclosure controls and procedures are adequately designed, and are operating effectively to ensure, that information required to be disclosed by the registrant in the reports it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no significant changes in the registrant's internal control over financial reporting that occurred during the registrant's last fiscal half-year that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEMS 12. EXHIBITS. (a)(1) Not applicable for semi-annual report. (a)(2) A separate certification for the principal executive officer and the principal financial officer of the registrant as required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended (17 CFR 270.30a-2(a)), are filed herewith. (b) Officer certifications as required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended (17 CFR 270.30a-2(b)) also accompany this filing as an Exhibit. - -------------------------------------------------------------------------------- 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) SEI Institutional Investments Trust By (Signature and Title)* /s/ Robert A. Nesher ------------------------------------- Robert A. Nesher, President & CEO Date: February 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 (Signature and Title)* /s/ Robert A. Nesher ------------------------------------- Robert A. Nesher, President & CEO Date: February 7, 2008 By (Signature and Title)* /s/ Stephen F. Panner ------------------------------------- Stephen F. Panner, Controller & CFO Date: February 7, 2008 * Print the name and title of each signing officer under his or her signature.