T. ROWE PRICE MID-CAP INDEX FUND
September 30, 2020 (Unaudited)
| Portfolio of Investments‡ | Shares | $ Value |
| (Cost and value in $000s) | ||
| COMMON STOCKS 100.0% | ||
| COMMUNICATION SERVICES 6.0% | ||
| Diversified Telecommunication Services 0.2% | ||
| GCI Liberty, Class A (1) | 208 | 17 |
| 17 | ||
| Entertainment 2.0% | ||
| Liberty Media - Liberty Formula One, Class A (1) | 57 | 2 |
| Liberty Media - Liberty Formula One, Class C (1) | 414 | 15 |
| Lions Gate Entertainment, Class A (1)(2) | 123 | 1 |
| Lions Gate Entertainment, Class B (1) | 244 | 2 |
| Madison Square Garden Entertainment (1) | 39 | 3 |
| Madison Square Garden Sports (1) | 40 | 6 |
| Roku (1) | 223 | 42 |
| Spotify Technology (1) | 277 | 67 |
| World Wrestling Entertainment, Class A | 97 | 4 |
| Zynga, Class A (1) | 1,872 | 17 |
| 159 | ||
| Interactive Media & Services 2.0% | ||
| IAC/InterActiveCorp (1) | 158 | 19 |
| Match Group (1) | 461 | 51 |
| Pinterest, Class A (1) | 848 | 35 |
| TripAdvisor | 212 | 4 |
| Zillow Group, Class A (1) | 122 | 13 |
| Zillow Group, Class C (1)(2) | 294 | 30 |
| 152 | ||
| Media 1.7% | ||
| Altice USA, Class A (1) | 643 | 17 |
| Cable One | 11 | 21 |
| John Wiley & Sons, Class A | 91 | 3 |
| Liberty Broadband, Class A (1) | 54 | 7 |
| Liberty Broadband, Class C (1) | 219 | 31 |
| Liberty Media - Liberty SiriusXM, Class A (1) | 181 | 6 |
| Liberty Media - Liberty SiriusXM, Class C (1) | 360 | 12 |
| New York Times, Class A | 343 | 15 |
| The accompanying notes are an integral part of this Portfolio of Investments. | ||
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Nexstar Media Group, Class A | 92 | 8 |
| Sirius XM Holdings (2) | 2,488 | 13 |
| 133 | ||
| Wireless Telecommunication Services 0.1% | ||
| Telephone & Data Systems | 212 | 4 |
| United States Cellular (1) | 30 | 1 |
| 5 | ||
| Total Communication Services | 466 | |
| CONSUMER DISCRETIONARY 17.4% | ||
| Auto Components 0.3% | ||
| Gentex | 517 | 13 |
| Lear | 126 | 14 |
| 27 | ||
| Automobiles 8.8% | ||
| Harley-Davidson | 323 | 8 |
| Tesla (1) | 1,559 | 669 |
| Thor Industries | 117 | 11 |
| 688 | ||
| Distributors 0.4% | ||
| Pool | 82 | 27 |
| 27 | ||
| Diversified Consumer Services 1.1% | ||
| Bright Horizons Family Solutions (1) | 126 | 19 |
| Chegg (1) | 256 | 19 |
| frontdoor (1) | 181 | 7 |
| Graham Holdings, Class B | 8 | 3 |
| Grand Canyon Education (1) | 99 | 8 |
| H&R Block | 406 | 7 |
| Service Corp. International | 362 | 15 |
| ServiceMaster Global Holdings (1) | 279 | 11 |
| 89 | ||
| Hotels, Restaurants & Leisure 1.8% | ||
| Aramark | 482 | 13 |
| Choice Hotels International | 73 | 6 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Dunkin' Brands Group | 173 | 14 |
| Extended Stay America | 373 | 5 |
| Hyatt Hotels, Class A | 74 | 4 |
| Planet Fitness, Class A (1) | 169 | 10 |
| Six Flags Entertainment | 161 | 3 |
| Vail Resorts | 84 | 18 |
| Wendy's | 378 | 8 |
| Wyndham Destinations | 177 | 5 |
| Wyndham Hotels & Resorts | 193 | 10 |
| Yum China Holdings | 843 | 45 |
| 141 | ||
| Household Durables 0.3% | ||
| Tempur Sealy International (1) | 100 | 9 |
| Toll Brothers | 244 | 12 |
| 21 | ||
| Internet & Direct Marketing Retail 0.8% | ||
| GrubHub (1) | 194 | 14 |
| Qurate Retail, Series A | 803 | 6 |
| Wayfair, Class A (1)(2) | 140 | 41 |
| 61 | ||
| Leisure Products 0.7% | ||
| Brunswick | 166 | 10 |
| Mattel (1) | 725 | 8 |
| Peloton Interactive, Class A (1) | 207 | 20 |
| Polaris Industries | 123 | 12 |
| 50 | ||
| Multiline Retail 0.2% | ||
| Kohl's | 331 | 6 |
| Nordstrom (2) | 228 | 3 |
| Ollie's Bargain Outlet Holdings (1) | 112 | 10 |
| 19 | ||
| Specialty Retail 1.6% | ||
| AutoNation (1) | 124 | 6 |
| Burlington Stores (1) | 138 | 28 |
| Carvana (1)(2) | 115 | 26 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Dick's Sporting Goods | 130 | 7 |
| Five Below (1) | 116 | 15 |
| Floor & Decor Holdings, Class A (1) | 197 | 15 |
| Foot Locker | 218 | 7 |
| Penske Automotive Group | 67 | 3 |
| Vroom (1) | 52 | 3 |
| Williams-Sonoma | 162 | 15 |
| 125 | ||
| Textiles, Apparel & Luxury Goods 1.4% | ||
| Capri Holdings (1) | 299 | 5 |
| Carter's | 90 | 8 |
| Columbia Sportswear | 61 | 5 |
| Lululemon Athletica (1) | 239 | 79 |
| Skechers USA, Class A (1) | 282 | 9 |
| 106 | ||
| Total Consumer Discretionary | 1,354 | |
| CONSUMER STAPLES 2.4% | ||
| Beverages 0.5% | ||
| Boston Beer, Class A (1) | 19 | 17 |
| Keurig Dr Pepper | 816 | 22 |
| 39 | ||
| Food & Staples Retailing 0.5% | ||
| Albertsons, Class A (1)(2) | 97 | 2 |
| Casey's General Stores | 78 | 14 |
| Grocery Outlet Holding (1) | 147 | 6 |
| Sprouts Farmers Market (1) | 249 | 5 |
| U. S. Foods Holding (1) | 463 | 10 |
| 37 | ||
| Food Products 1.0% | ||
| Beyond Meat (1)(2) | 109 | 18 |
| Bunge | 285 | 13 |
| Flowers Foods | 411 | 10 |
| Hain Celestial Group (1) | 172 | 6 |
| Ingredion | 142 | 11 |
| Pilgrim's Pride (1) | 111 | 2 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Post Holdings (1) | 135 | 11 |
| Seaboard | 1 | 3 |
| TreeHouse Foods (1) | 119 | 5 |
| 79 | ||
| Household Products 0.2% | ||
| Energizer Holdings | 131 | 5 |
| Reynolds Consumer Products | 103 | 3 |
| Spectrum Brands Holdings | 89 | 5 |
| 13 | ||
| Personal Products 0.2% | ||
| Coty, Class A | 606 | 2 |
| Herbalife Nutrition (1) | 189 | 9 |
| Nu Skin Enterprises, Class A | 108 | 5 |
| 16 | ||
| Total Consumer Staples | 184 | |
| ENERGY 0.9% | ||
| Energy Equipment & Services 0.0% | ||
| Helmerich & Payne | 220 | 3 |
| 3 | ||
| Oil, Gas & Consumable Fuels 0.9% | ||
| Antero Midstream | 605 | 3 |
| Cheniere Energy (1) | 489 | 23 |
| Cimarex Energy | 212 | 5 |
| Continental Resources (2) | 158 | 2 |
| EQT | 538 | 7 |
| Equitrans Midstream | 861 | 7 |
| Murphy Oil | 307 | 3 |
| Parsley Energy, Class A | 635 | 6 |
| Targa Resources | 486 | 7 |
| WPX Energy (1) | 848 | 4 |
| 67 | ||
| Total Energy | 70 | |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| FINANCIALS 9.5% | ||
| Banks 1.9% | ||
| Associated Banc-Corp | 320 | 4 |
| Bank of Hawaii | 83 | 4 |
| Bank OZK | 258 | 5 |
| BOK Financial | 66 | 3 |
| Commerce Bancshares | 212 | 12 |
| Cullen/Frost Bankers | 118 | 8 |
| East West Bancorp | 297 | 10 |
| First Citizens BancShares, Class A | 14 | 4 |
| First Hawaiian | 273 | 4 |
| First Horizon National | 1,151 | 11 |
| FNB | 680 | 5 |
| PacWest Bancorp | 246 | 4 |
| Pinnacle Financial Partners | 156 | 6 |
| Popular | 183 | 7 |
| Prosperity Bancshares | 188 | 10 |
| Signature Bank | 110 | 9 |
| Sterling Bancorp | 418 | 4 |
| Synovus Financial | 308 | 7 |
| TCF Financial | 318 | 7 |
| Umpqua Holdings | 464 | 5 |
| Webster Financial | 189 | 5 |
| Western Alliance Bancorp | 206 | 6 |
| Wintrust Financial | 120 | 5 |
| 145 | ||
| Capital Markets 2.5% | ||
| Affiliated Managers Group | 97 | 7 |
| Apollo Global Management | 360 | 16 |
| Ares Management, Class A | 207 | 8 |
| Carlyle Group (2) | 246 | 6 |
| Eaton Vance | 234 | 9 |
| Evercore, Class A | 83 | 5 |
| FactSet Research Systems | 79 | 27 |
| Interactive Brokers Group, Class A | 152 | 7 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| KKR | 1,122 | 39 |
| Lazard, Class A | 213 | 7 |
| LPL Financial Holdings | 166 | 13 |
| Morningstar | 46 | 7 |
| SEI Investments | 243 | 12 |
| TD Ameritrade Holding | 548 | 22 |
| Tradeweb Markets, Class A | 173 | 10 |
| Virtu Financial, Class A | 132 | 3 |
| 198 | ||
| Consumer Finance 0.6% | ||
| Ally Financial | 786 | 20 |
| Credit Acceptance (1)(2) | 21 | 7 |
| LendingTree (1) | 17 | 5 |
| OneMain Holdings | 137 | 4 |
| Santander Consumer USA Holdings | 159 | 3 |
| SLM | 790 | 6 |
| 45 | ||
| Diversified Financial Services 0.5% | ||
| Equitable Holdings | 856 | 16 |
| Jefferies Financial Group | 478 | 8 |
| Voya Financial | 265 | 13 |
| 37 | ||
| Insurance 3.1% | ||
| Alleghany | 29 | 15 |
| American Financial Group | 156 | 10 |
| American National Group | 16 | 1 |
| Arch Capital Group (1) | 830 | 24 |
| Assured Guaranty | 170 | 4 |
| Athene Holding, Class A (1) | 244 | 8 |
| Axis Capital Holdings | 175 | 8 |
| Brighthouse Financial (1) | 196 | 5 |
| Brown & Brown | 497 | 23 |
| CNA Financial | 59 | 2 |
| Erie Indemnity, Class A | 53 | 11 |
| Fidelity National Financial | 580 | 18 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| First American Financial | 229 | 12 |
| GoHealth, Class A (1) | 87 | 1 |
| Hanover Insurance Group | 80 | 7 |
| Kemper | 130 | 9 |
| Lemonade (1)(2) | 27 | 1 |
| Markel (1) | 28 | 27 |
| Mercury General | 58 | 2 |
| Old Republic International | 597 | 9 |
| Primerica | 84 | 10 |
| Reinsurance Group of America | 143 | 14 |
| RenaissanceRe Holdings | 106 | 18 |
| White Mountains Insurance Group | 6 | 5 |
| 244 | ||
| Mortgage Real Estate Investment Trusts 0.7% | ||
| AGNC Investment, REIT | 1,169 | 16 |
| Annaly Capital Management, REIT | 2,954 | 21 |
| New Residential Investment, REIT | 874 | 7 |
| Starwood Property Trust, REIT | 577 | 9 |
| 53 | ||
| Thrifts & Mortgage Finance 0.2% | ||
| MGIC Investment | 712 | 6 |
| New York Community Bancorp | 949 | 8 |
| Rocket, Class A (1) | 201 | 4 |
| TFS Financial | 103 | 2 |
| 20 | ||
| Total Financials | 742 | |
| HEALTH CARE 13.2% | ||
| Biotechnology 4.7% | ||
| ACADIA Pharmaceuticals (1) | 231 | 10 |
| Acceleron Pharma (1) | 106 | 12 |
| Agios Pharmaceuticals (1) | 130 | 5 |
| Alkermes (1) | 333 | 5 |
| Alnylam Pharmaceuticals (1) | 242 | 35 |
| BioMarin Pharmaceutical (1) | 380 | 29 |
| Bluebird Bio (1) | 136 | 7 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Exact Sciences (1) | 314 | 32 |
| Exelixis (1) | 641 | 16 |
| Global Blood Therapeutics (1) | 123 | 7 |
| Immunomedics (1) | 433 | 37 |
| Ionis Pharmaceuticals (1) | 276 | 13 |
| Iovance Biotherapeutics (1) | 285 | 9 |
| Moderna (1)(2) | 601 | 42 |
| Neurocrine Biosciences (1) | 194 | 19 |
| Sage Therapeutics (1) | 108 | 7 |
| Sarepta Therapeutics (1) | 157 | 22 |
| Seattle Genetics (1) | 256 | 50 |
| United Therapeutics (1) | 92 | 9 |
| 366 | ||
| Health Care Equipment & Supplies 2.3% | ||
| Envista Holdings (1) | 337 | 8 |
| Globus Medical, Class A (1) | 156 | 8 |
| Haemonetics (1) | 105 | 9 |
| Hill-Rom Holdings | 141 | 12 |
| ICU Medical (1) | 41 | 8 |
| Insulet (1) | 138 | 33 |
| Integra LifeSciences Holdings (1) | 151 | 7 |
| Masimo (1) | 102 | 24 |
| Novocure (1) | 210 | 23 |
| Penumbra (1) | 68 | 13 |
| Quidel (1) | 79 | 17 |
| Tandem Diabetes Care (1) | 124 | 14 |
| 176 | ||
| Health Care Providers & Services 1.2% | ||
| Acadia Healthcare (1) | 185 | 5 |
| Amedisys (1) | 66 | 16 |
| Chemed | 33 | 16 |
| Encompass Health | 206 | 13 |
| Guardant Health (1) | 157 | 18 |
| Molina Healthcare (1) | 124 | 23 |
| Oak Street Health (1) | 36 | 2 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Premier, Class A | 130 | 4 |
| 97 | ||
| Health Care Technology 1.7% | ||
| Change Healthcare (1) | 511 | 8 |
| Livongo Health (1) | 116 | 16 |
| Teladoc Health (1)(2) | 151 | 33 |
| Veeva Systems, Class A (1) | 281 | 79 |
| 136 | ||
| Life Sciences Tools & Services 2.2% | ||
| 10X Genomics, Class A (1) | 121 | 15 |
| Adaptive Biotechnologies (1) | 160 | 8 |
| Avantor (1) | 942 | 21 |
| Berkeley Lights (1) | 20 | 2 |
| Bio-Techne | 80 | 20 |
| Bruker | 218 | 9 |
| Charles River Laboratories International (1) | 103 | 23 |
| PPD (1) | 333 | 12 |
| PRA Health Sciences (1) | 133 | 13 |
| QIAGEN (1) | 475 | 25 |
| Repligen (1) | 110 | 16 |
| Syneos Health (1) | 146 | 8 |
| 172 | ||
| Pharmaceuticals 1.1% | ||
| Elanco Animal Health (1) | 845 | 23 |
| Horizon Therapeutics (1) | 410 | 32 |
| Jazz Pharmaceuticals (1) | 114 | 16 |
| Nektar Therapeutics (1) | 366 | 6 |
| Reata Pharmaceuticals, Class A (1) | 50 | 5 |
| 82 | ||
| Total Health Care | 1,029 | |
| INDUSTRIALS & BUSINESS SERVICES 10.9% | ||
| Aerospace & Defense 1.0% | ||
| Axon Enterprise (1) | 131 | 12 |
| BWX Technologies | 201 | 11 |
| Curtiss-Wright | 88 | 8 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| HEICO | 94 | 10 |
| HEICO, Class A | 164 | 15 |
| Hexcel | 176 | 6 |
| Mercury Systems (1) | 115 | 9 |
| Spirit AeroSystems Holdings, Class A | 221 | 4 |
| Virgin Galactic Holdings (1)(2) | 127 | 2 |
| 77 | ||
| Air Freight & Logistics 0.2% | ||
| XPO Logistics (1) | 192 | 16 |
| 16 | ||
| Airlines 0.1% | ||
| Copa Holdings, Class A | 66 | 3 |
| JetBlue Airways (1) | 568 | 7 |
| 10 | ||
| Building Products 0.8% | ||
| Armstrong Worldwide Industries | 101 | 7 |
| AZEK (1) | 85 | 3 |
| Lennox International | 73 | 20 |
| Owens Corning | 226 | 16 |
| Trex (1) | 244 | 17 |
| 63 | ||
| Commercial Services & Supplies 0.6% | ||
| ADT | 324 | 3 |
| Clean Harbors (1) | 109 | 6 |
| IAA (1) | 283 | 15 |
| MSA Safety | 77 | 10 |
| Stericycle (1) | 193 | 12 |
| 46 | ||
| Construction & Engineering 0.2% | ||
| AECOM (1) | 322 | 14 |
| Valmont Industries | 44 | 5 |
| 19 | ||
| Electrical Equipment 1.1% | ||
| Acuity Brands | 83 | 8 |
| Generac Holdings (1) | 129 | 25 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| GrafTech International | 143 | 1 |
| Hubbell | 114 | 16 |
| nVent Electric | 328 | 6 |
| Regal Beloit | 86 | 8 |
| Sensata Technologies Holding (1) | 326 | 14 |
| Vertiv Holdings (1) | 463 | 8 |
| 86 | ||
| Industrial Conglomerates 0.2% | ||
| Carlisle | 114 | 14 |
| 14 | ||
| Machinery 2.2% | ||
| AGCO | 130 | 10 |
| Allison Transmission Holdings | 238 | 8 |
| Colfax (1) | 209 | 7 |
| Crane | 103 | 5 |
| Donaldson | 268 | 12 |
| Gates Industrial (1) | 94 | 1 |
| Graco | 349 | 21 |
| ITT | 182 | 11 |
| Lincoln Electric Holdings | 121 | 11 |
| Middleby (1) | 116 | 10 |
| Nordson | 121 | 23 |
| Oshkosh | 143 | 11 |
| Timken | 134 | 7 |
| Toro | 226 | 19 |
| Trinity Industries | 191 | 4 |
| Woodward | 118 | 10 |
| 170 | ||
| Marine 0.1% | ||
| Kirby (1) | 126 | 5 |
| 5 | ||
| Professional Services 1.7% | ||
| CoreLogic | 167 | 11 |
| CoStar Group (1) | 82 | 69 |
| Dun & Bradstreet Holdings (1) | 181 | 5 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| FTI Consulting (1) | 76 | 8 |
| ManpowerGroup | 122 | 9 |
| TransUnion | 400 | 34 |
| 136 | ||
| Road & Rail 2.0% | ||
| AMERCO | 19 | 7 |
| Knight-Swift Transportation Holdings | 264 | 11 |
| Landstar System | 81 | 10 |
| Lyft, Class A (1)(2) | 503 | 14 |
| Ryder System | 111 | 4 |
| Schneider National, Class B | 124 | 3 |
| Uber Technologies (1) | 2,905 | 106 |
| 155 | ||
| Trading Companies & Distributors 0.6% | ||
| Air Lease | 225 | 7 |
| HD Supply Holdings (1) | 339 | 14 |
| MSC Industrial Direct, Class A | 94 | 6 |
| Univar Solutions (1) | 352 | 6 |
| Watsco | 69 | 16 |
| 49 | ||
| Transportation Infrastructure 0.1% | ||
| Macquarie Infrastructure | 155 | 4 |
| 4 | ||
| Total Industrials & Business Services | 850 | |
| INFORMATION TECHNOLOGY 28.2% | ||
| Communications Equipment 0.5% | ||
| Ciena (1) | 322 | 13 |
| CommScope Holding (1) | 408 | 4 |
| EchoStar, Class A (1) | 101 | 2 |
| Lumentum Holdings (1) | 158 | 12 |
| Ubiquiti | 18 | 3 |
| ViaSat (1) | 122 | 4 |
| 38 | ||
| Electronic Equipment, Instruments & Components 1.6% | ||
| Arrow Electronics (1) | 162 | 13 |
The accompanying notes are an integral part of this Portfolio of Investments.
T. ROWE PRICE MID-CAP INDEX FUND
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Avnet | 207 | 5 |
| Cognex | 348 | 22 |
| Coherent (1) | 51 | 6 |
| Dolby Laboratories, Class A | 133 | 9 |
| Jabil | 310 | 10 |
| Littelfuse | 50 | 9 |
| National Instruments | 272 | 10 |
| SYNNEX | 88 | 12 |
| Trimble (1) | 527 | 26 |
| 122 | ||
| IT Services 6.5% | ||
| Alliance Data Systems | 99 | 4 |
| Amdocs | 280 | 16 |
| BigCommerce Holdings, Series 1 (1)(2) | 19 | 1 |
| Black Knight (1) | 318 | 28 |
| Booz Allen Hamilton Holding | 285 | 24 |
| CACI International, Class A (1) | 52 | 11 |
| EPAM Systems (1) | 112 | 36 |
| Euronet Worldwide (1) | 106 | 10 |
| Fastly, Class A (1)(2) | 166 | 15 |
| Genpact | 396 | 15 |
| GoDaddy, Class A (1) | 350 | 27 |
| MongoDB (1)(2) | 106 | 24 |
| Okta (1) | 242 | 52 |
| Sabre | 582 | 4 |
| Science Applications International | 123 | 10 |
| Square, Class A (1) | 779 | 127 |
| StoneCo, Class A (1) | 378 | 20 |
| Switch, Class A | 186 | 3 |
| Twilio, Class A (1) | 288 | 71 |
| WEX (1) | 92 | 13 |
| 511 | ||
| Semiconductors & Semiconductor Equipment 3.1% | ||
| Cirrus Logic (1) | 123 | 8 |
| Cree (1) | 228 | 14 |
| Enphase Energy (1) | 223 | 18 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Entegris | 283 | 21 |
| First Solar (1) | 195 | 13 |
| Inphi (1) | 101 | 11 |
| Marvell Technology Group | 1,388 | 55 |
| MKS Instruments | 115 | 13 |
| Monolithic Power Systems | 92 | 26 |
| ON Semiconductor (1) | 856 | 19 |
| SolarEdge Technologies (1) | 103 | 25 |
| Universal Display | 90 | 16 |
| 239 | ||
| Software 15.9% | ||
| 2U (1)(2) | 143 | 5 |
| Alteryx, Class A (1)(2) | 112 | 13 |
| Anaplan (1) | 275 | 17 |
| Aspen Technology (1) | 143 | 18 |
| Atlassian, Class A (1) | 268 | 49 |
| Avalara (1) | 174 | 22 |
| Bill. com Holdings (1) | 115 | 11 |
| CDK Global | 257 | 11 |
| Ceridian HCM Holding (1) | 224 | 18 |
| Cloudflare, Class A (1) | 230 | 9 |
| Coupa Software (1) | 140 | 38 |
| Crowdstrike Holdings, Class A (1) | 319 | 44 |
| Datadog, Class A (1) | 322 | 33 |
| DocuSign (1) | 375 | 81 |
| Dropbox, Class A (1) | 518 | 10 |
| Duck Creek Technologies (1) | 30 | 1 |
| Dynatrace (1) | 385 | 16 |
| Elastic (1) | 137 | 15 |
| Everbridge (1)(2) | 72 | 9 |
| Fair Isaac (1) | 59 | 25 |
| FireEye (1) | 462 | 6 |
| Five9 (1) | 130 | 17 |
| Globant (1) | 81 | 14 |
| Guidewire Software (1) | 175 | 18 |
| HubSpot (1) | 87 | 25 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Jamf Holding (1) | 42 | 2 |
| Manhattan Associates (1) | 134 | 13 |
| Medallia (1)(2) | 173 | 5 |
| nCino (1) | 16 | 1 |
| New Relic (1) | 106 | 6 |
| Nuance Communications (1) | 593 | 20 |
| Nutanix, Class A (1) | 376 | 8 |
| PagerDuty (1)(2) | 145 | 4 |
| Palo Alto Networks (1) | 199 | 49 |
| Paylocity Holding (1) | 73 | 12 |
| Pegasystems | 83 | 10 |
| Pluralsight, Class A (1) | 220 | 4 |
| Proofpoint (1) | 120 | 13 |
| PTC (1) | 220 | 18 |
| RealPage (1) | 185 | 11 |
| RingCentral, Class A (1) | 163 | 45 |
| Slack Technologies, Class A (1)(2) | 803 | 22 |
| Smartsheet, Class A (1) | 233 | 11 |
| SolarWinds (1) | 98 | 2 |
| Splunk (1) | 335 | 63 |
| SS&C Technologies Holdings | 473 | 29 |
| Teradata (1) | 232 | 5 |
| Trade Desk, Class A (1)(2) | 87 | 45 |
| VMware, Class A (1) | 167 | 24 |
| Workday, Class A (1) | 361 | 78 |
| Zendesk (1) | 239 | 25 |
| Zoom Video Communications, Class A (1) | 352 | 165 |
| Zscaler (1) | 148 | 21 |
| 1,236 | ||
| Technology Hardware, Storage & Peripherals 0.6% | ||
| Dell Technologies, Class C (1) | 529 | 36 |
| NCR (1) | 268 | 6 |
| Pure Storage, Class A (1)(2) | 509 | 8 |
| 50 | ||
| Total Information Technology | 2,196 | |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | |||
|
| |||
| Shares | $ Value | ||
| (Cost and value in $000s) | |||
| MATERIALS 3.1% | |||
| Chemicals 1.3% | |||
| Ashland Global Holdings | 117 | 8 | |
| Axalta Coating Systems (1) | 444 | 10 | |
| Cabot | 117 | 4 | |
| Chemours (2) | 345 | 7 | |
| Element Solutions (1) | 458 | 5 | |
| Huntsman | 422 | 9 | |
| NewMarket | 14 | 5 | |
| Olin | 301 | 4 | |
| RPM International | 270 | 22 | |
| Scotts Miracle-Gro | 85 | 13 | |
| Valvoline | 391 | 7 | |
| Westlake Chemical | 72 | 5 | |
| WR Grace | 119 | 5 | |
| 104 | |||
| Construction Materials 0.1% | |||
| Eagle Materials | 88 | 8 | |
| 8 | |||
| Containers & Packaging 1.0% | |||
| AptarGroup | 136 | 15 | |
| Ardagh Group | 39 | 1 | |
| Berry Global Group (1) | 280 | 14 | |
| Crown Holdings (1) | 274 | 21 | |
| Graphic Packaging Holding | 586 | 8 | |
| Silgan Holdings | 166 | 6 | |
| Sonoco Products | 211 | 11 | |
| 76 | |||
| Metals & Mining 0.7% | |||
| Reliance Steel & Aluminum | 134 | 14 | |
| Royal Gold | 138 | 16 | |
| Southern Copper | 174 | 8 | |
| Steel Dynamics | 422 | 12 | |
| 50 | |||
| Total Materials | 238 | ||
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| REAL ESTATE 6.7% | ||
| Equity Real Estate Investment Trusts 6.5% | ||
| American Campus Communities, REIT | 289 | 10 |
| American Homes 4 Rent, Class A, REIT | 548 | 16 |
| Americold Realty Trust, REIT | 422 | 15 |
| Apple Hospitality, REIT | 442 | 4 |
| Brandywine Realty Trust, REIT | 363 | 4 |
| Brixmor Property Group, REIT | 625 | 7 |
| Brookfield Property, Class A, REIT (2) | 120 | 2 |
| Camden Property Trust, REIT | 199 | 18 |
| CoreSite Realty, REIT | 85 | 10 |
| Corporate Office Properties Trust, REIT | 237 | 6 |
| Cousins Properties, REIT | 312 | 9 |
| CubeSmart, REIT | 408 | 13 |
| CyrusOne, REIT | 243 | 17 |
| Douglas Emmett, REIT | 351 | 9 |
| Empire State Realty Trust, Class A, REIT | 309 | 2 |
| EPR Properties, REIT | 156 | 4 |
| Equity Commonwealth, REIT | 246 | 7 |
| Equity LifeStyle Properties, REIT | 367 | 23 |
| First Industrial Realty Trust, REIT | 266 | 11 |
| Gaming and Leisure Properties, REIT | 434 | 16 |
| Healthcare Trust of America, Class A, REIT | 459 | 12 |
| Highwoods Properties, REIT | 217 | 7 |
| Hudson Pacific Properties, REIT | 317 | 7 |
| Invitation Homes, REIT | 1,181 | 33 |
| JBG SMITH Properties, REIT | 257 | 7 |
| Kilroy Realty, REIT | 242 | 13 |
| Lamar Advertising, Class A, REIT | 181 | 12 |
| Life Storage, REIT | 99 | 10 |
| Medical Properties Trust, REIT | 1,094 | 19 |
| National Retail Properties, REIT | 361 | 12 |
| Omega Healthcare Investors, REIT | 475 | 14 |
| Outfront Media, REIT | 302 | 4 |
| Paramount Group, REIT | 399 | 3 |
The accompanying notes are an integral part of this Portfolio of Investments.
| T. ROWE PRICE MID-CAP INDEX FUND | ||
|
| ||
| Shares | $ Value | |
| (Cost and value in $000s) | ||
| Park Hotels & Resorts, REIT | 495 | 5 |
| Rayonier, REIT | 277 | 7 |
| Rexford Industrial Realty, REIT | 260 | 12 |
| Spirit Realty Capital, REIT | 217 | 7 |
| STORE Capital, REIT | 490 | 13 |
| Sun Communities, REIT | 204 | 29 |
| Taubman Centers, REIT | 127 | 4 |
| VEREIT, REIT | 2,278 | 15 |
| VICI Properties, REIT | 1,125 | 26 |
| Weingarten Realty Investors, REIT | 256 | 4 |
| WP Carey, REIT | 361 | 24 |
| 502 | ||
| Real Estate Management & Development 0.2% | ||
| Howard Hughes (1) | 82 | 5 |
| Jones Lang LaSalle | 109 | 10 |
| 15 | ||
| Total Real Estate | 517 | |
| UTILITIES 1.7% | ||
| Electric Utilities 0.8% | ||
| Avangrid | 120 | 6 |
| Hawaiian Electric Industries | 226 | 7 |
| IDACORP | 106 | 8 |
| OGE Energy | 422 | 13 |
| PG&E (1) | 2,726 | 26 |
| 60 | ||
| Gas Utilities 0.3% | ||
| National Fuel Gas | 183 | 7 |
| UGI | 439 | 15 |
| 22 | ||
| Independent Power & Renewable Electricity Producers 0.3% | ||
| Vistra | 1,030 | 19 |
| 19 | ||
| Multi-Utilities 0.1% | ||
| MDU Resources | 421 | 10 |
| 10 | ||
The accompanying notes are an integral part of this Portfolio of Investments.
T. ROWE PRICE MID-CAP INDEX FUND
| Shares | $ Value | ||
| (Cost and value in $000s) | |||
| Water Utilities 0.2% | |||
| Essential Utilities | 472 | 19 | |
| 19 | |||
| Total Utilities | 130 | ||
| Total Common Stocks (Cost $5,281) | 7,776 | ||
| SHORT-TERM INVESTMENTS 0.1% | |||
| MONEY MARKET FUNDS 0.1% | |||
| T. Rowe Price Government Reserve Fund, 0.09% (3)(4) | 10,154 | 10 | |
| Total Short-Term Investments (Cost $10) | 10 | ||
| SECURITIES LENDING COLLATERAL 4.2% | |||
| Investments in a Pooled Account through Securities Lending | |||
| Program with State Street Bank and Trust Company 4.2% | |||
| Short-Term Funds 4.2% | |||
| T. Rowe Price Short-Term Fund, 0.13% (3)(4) | 32,804 | 328 | |
| Total Investments in a Pooled Account through Securities Lending Program with | |||
| State Street Bank and Trust Company | 328 | ||
| Total Securities Lending Collateral (Cost $328) | 328 | ||
| Total Investments in Securities 104.3% | |||
| (Cost $5,619) | $ | 8,114 | |
| Other Assets Less Liabilities (4.3)% | (337) | ||
| Net Assets 100.0% | $ | 7,777 | |
| ‡ | Shares are denominated in U.S. dollars unless otherwise noted. | |
| (1) | Non-income producing | |
| (2) | All or a portion of this security is on loan at September 30, 2020. | |
| (3) | Affiliated Companies | |
| (4) | Seven-day yield | |
| REIT | A domestic Real Estate Investment Trust whose distributions pass-through | |
| with original tax character to the shareholder | ||
The accompanying notes are an integral part of this Portfolio of Investments.
T. ROWE PRICE MID-CAP INDEX FUND
Affiliated Companies
($000s)
The fund may invest in certain securities that are considered affiliated companies. As defined
by the 1940 Act, an affiliated company is one in which the fund owns 5% or more of the
outstanding voting securities, or a company that is under common ownership or control. The
following securities were considered affiliated companies for all or some portion of the nine
months ended September 30, 2020. Net realized gain (loss), investment income, change in net
unrealized gain/loss, and purchase and sales cost reflect all activity for the period then ended.
| Change in Net | ||||||||
| Net Realized Gain | Unrealized | Investment | ||||||
| Affiliate | (Loss) | Gain/Loss | Income | |||||
| T. Rowe Price Government | ||||||||
| Reserve Fund | $ | — | $ | — | $ | — | ||
| T. Rowe Price Short-Term Fund | — | — | —++ | |||||
| Totals | $ | —# | $ | — | $ | —+ | ||
| Supplementary Investment Schedule | ||||||||
| Value | Purchase | Sales | Value | |||||
| Affiliate | 12/31/19 | Cost | Cost | 9/30/20 | ||||
| T. Rowe Price Government | ||||||||
| Reserve Fund | $ | 4 | ¤ | ¤ $ | 10 | |||
| T. Rowe Price Short-Term | ||||||||
| Fund | 694 | ¤ | ¤ | 328 | ||||
| Total | $ | 338^ | ||||||
| # | Capital gain distributions from mutual funds represented $0 of the net realized gain (loss) . |
| ++ Excludes earnings on securities lending collateral, which are subject to rebates and fees. | |
| + | Investment income comprised $0 of dividend income and $0 of interest income. |
| ¤ | Purchase and sale information not shown for cash management funds. |
| ^ | The cost basis of investments in affiliated companies was $338. |
The accompanying notes are an integral part of this Portfolio of Investments.
T. ROWE PRICE MID-CAP INDEX FUND
Unaudited
NOTES TO PORTFOLIO OF
INVESTMENTS
T. Rowe Price Mid-Cap Index Fund (the fund) is registered under the Investment Company Act of 1940 (the 1940 Act) as
an open-end management investment company and follows accounting and reporting guidance of the Financial
Accounting Standards Board Accounting Standards Codification Topic 946. The accompanying Portfolio of Investments
was prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). For
additional information on the fund’s significant accounting policies and investment related disclosures, please refer to the
fund’s most recent semiannual or annual shareholder report and its prospectus.
VALUATION
The fund’s financial instruments are valued at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET,
each day the NYSE is open for business.
Fair Value
The fund’s financial instruments are reported at fair value, which GAAP defines as the price that would be received to
sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement
date. The T. Rowe Price Valuation Committee (the Valuation Committee) is an internal committee that has been
delegated certain responsibilities by the fund’s Board of Directors (the Board) to ensure that financial instruments are
appropriately priced at fair value in accordance with GAAP and the 1940 Act. Subject to oversight by the Board, the
Valuation Committee develops and oversees pricing-related policies and procedures and approves all fair value
determinations. Specifically, the Valuation Committee establishes procedures to value securities; determines pricing
techniques, sources, and persons eligible to effect fair value pricing actions; oversees the selection, services, and
performance of pricing vendors; oversees valuation-related business continuity practices; and provides guidance on
internal controls and valuation-related matters. The Valuation Committee reports to the Board and has representation
from legal, portfolio management and trading, operations, risk management, and the fund’s treasurer.
Various valuation techniques and inputs are used to determine the fair value of financial instruments. GAAP
establishes the following fair value hierarchy that categorizes the inputs used to measure fair value:
Level 1 - quoted prices (unadjusted) in active markets for identical financial instruments that the fund can access at
the reporting date
Level 2 - inputs other than Level 1 quoted prices that are observable, either directly or indirectly (including, but not
limited to, quoted prices for similar financial instruments in active markets, quoted prices for identical or
similar financial instruments in inactive markets, interest rates and yield curves, implied volatilities, and
credit spreads)
Level 3 - unobservable inputs
Observable inputs are developed using market data, such as publicly available information about actual events or
transactions, and reflect the assumptions that market participants would use to price the financial instrument.
Unobservable inputs are those for which market data are not available and are developed using the best information
available about the assumptions that market participants would use to price the financial instrument. GAAP requires
valuation techniques to maximize the use of relevant observable inputs and minimize the use of unobservable inputs.
When multiple inputs are used to derive fair value, the financial instrument is assigned to the level within the fair value
hierarchy based on the lowest-level input that is significant to the fair value of the financial instrument. Input levels are
not necessarily an indication of the risk or liquidity associated with financial instruments at that level but rather the
degree of judgment used in determining those values.
T. ROWE PRICE MID-CAP INDEX FUND
Valuation Techniques
Equity securities listed or regularly traded on a securities exchange or in the over-the-counter (OTC) market are valued
at the last quoted sale price or, for certain markets, the official closing price at the time the valuations are made. OTC
Bulletin Board securities are valued at the mean of the closing bid and asked prices. A security that is listed or traded on
more than one exchange is valued at the quotation on the exchange determined to be the primary market for such
security. Listed securities not traded on a particular day are valued at the mean of the closing bid and asked prices.
Actively traded equity securities listed on a domestic exchange generally are categorized in Level 1 of the fair value
hierarchy. OTC Bulletin Board securities, certain preferred securities, and equity securities traded in inactive markets
generally are categorized in Level 2 of the fair value hierarchy.
Investments in mutual funds are valued at the mutual fund’s closing NAV per share on the day of valuation and are
categorized in Level 1 of the fair value hierarchy.
Thinly traded financial instruments and those for which the above valuation procedures are inappropriate or are
deemed not to reflect fair value are stated at fair value as determined in good faith by the Valuation Committee. The
objective of any fair value pricing determination is to arrive at a price that could reasonably be expected from a current
sale. Financial instruments fair valued by the Valuation Committee are primarily private placements, restricted
securities, warrants, rights, and other securities that are not publicly traded.
Subject to oversight by the Board, the Valuation Committee regularly makes good faith judgments to establish and
adjust the fair valuations of certain securities as events occur and circumstances warrant. For instance, in determining
the fair value of an equity investment with limited market activity, such as a private placement or a thinly traded public
company stock, the Valuation Committee considers a variety of factors, which may include, but are not limited to, the
issuer’s business prospects, its financial standing and performance, recent investment transactions in the issuer, new
rounds of financing, negotiated transactions of significant size between other investors in the company, relevant market
valuations of peer companies, strategic events affecting the company, market liquidity for the issuer, and general
economic conditions and events. In consultation with the investment and pricing teams, the Valuation Committee will
determine an appropriate valuation technique based on available information, which may include both observable and
unobservable inputs. The Valuation Committee typically will afford greatest weight to actual prices in arm’s length
transactions, to the extent they represent orderly transactions between market participants, transaction information can
be reliably obtained, and prices are deemed representative of fair value. However, the Valuation Committee may also
consider other valuation methods such as market-based valuation multiples; a discount or premium from market value
of a similar, freely traded security of the same issuer; or some combination. Fair value determinations are reviewed on a
regular basis and updated as information becomes available, including actual purchase and sale transactions of the
issue. Because any fair value determination involves a significant amount of judgment, there is a degree of subjectivity
inherent in such pricing decisions, and fair value prices determined by the Valuation Committee could differ from
those of other market participants. Depending on the relative significance of unobservable inputs, including the
valuation technique(s) used, fair valued securities may be categorized in Level 2 or 3 of the fair value hierarchy.
Valuation Inputs
On September 30, 2020, all of the fund’s financial instruments were classified as Level 1, based on the inputs used to
determine their fair values.