TRMNX
T. Rowe Price Mid-Cap Index Fund
T. ROWE PRICE INDEX TRUST, INC.
Index fund

Allocation breakdown

As of March 31, 2026 · N-PORT

By asset class

By country

By sector

By industry (SIC code)

As of March 31, 2026 · N-PORT

How we map holdings to the sectors above: each holding's issuer carries a U.S. SIC industry code in its EDGAR filer record, and each SIC code rolls up to a sector. Expand a sector to see its industries, and click a SIC code to list this fund's positions in that industry. Bonds and foreign or private issuers with no SEC filer record fall into Unclassified.

Services-Prepackaged Software 8.39%
Semiconductors & Related Devices 3.52%
Services-Computer Processing & Data Preparation 0.90%
Services-Computer Integrated Systems Design 0.80%
Services-Computer Programming, Data Processing, Etc. 0.76%
Laboratory Analytical Instruments 0.72%
Printed Circuit Boards 0.52%
Services-Computer Programming Services 0.52%
Electrical Industrial Apparatus 0.47%
Household Appliances 0.26%
Measuring & Controlling Devices, NEC 0.22%
Electric Lighting & Wiring Equipment 0.19%
Electronic Components & Accessories 0.09%
Radio & Tv Broadcasting & Communications Equipment 0.07%
Miscellaneous Electrical Machinery, Equipment & Supplies 0.06%
Wholesale-Hardware & Plumbing & Heating Equipment & Supplies 1.25%
Oil & Gas Field Machinery & Equipment 0.90%
Pumps & Pumping Equipment 0.86%
Aircraft Engines & Engine Parts 0.73%
Guided Missiles & Space Vehicles & Parts 0.68%
Trucking (No Local) 0.55%
Misc Industrial & Commercial Machinery & Equipment 0.54%
Engines & Turbines 0.51%
Ball & Roller Bearings 0.50%
Wholesale-Groceries & Related Products 0.45%
Services-Management Consulting Services 0.45%
Water, Sewer, Pipeline, Comm & Power Line Construction 0.44%
Water Transportation 0.43%
Operative Builders 0.41%
Special Industry Machinery (No Metalworking Machinery) 0.41%
Services-Engineering Services 0.41%
General Industrial Machinery & Equipment, NEC 0.39%
Metal Cans 0.33%
Metalworkg Machinery & Equipment 0.29%
Wholesale-Computers & Peripheral Equipment & Software 0.29%
Wholesale-Electrical Apparatus & Equipment, Wiring Supplies 0.29%
Wholesale-Groceries, General Line 0.28%
Wholesale-Lumber & Other Construction Materials 0.27%
Wholesale-Electronic Parts & Equipment, NEC 0.27%
Miscellaneous Fabricated Metal Products 0.23%
Services-Commercial Physical & Biological Research 0.23%
Construction - Special Trade Contractors 0.21%
Construction Machinery & Equip 0.21%
Industrial & Commercial Fans & Blowers & Air Purifing Equip 0.21%
Wholesale-Machinery, Equipment & Supplies 0.21%
Refrigeration & Service Industry Machinery 0.20%
Wholesale-Durable Goods, NEC 0.20%
Lumber & Wood Products (No Furniture) 0.18%
Fabricated Structural Metal Products 0.17%
Wholesale-Motor Vehicles & Motor Vehicle Parts & Supplies 0.17%
Cutlery, Handtools & General Hardware 0.16%
Farm Machinery & Equipment 0.16%
Aircraft Parts & Auxiliary Equipment, NEC 0.14%
Transportation Services 0.13%
Wholesale-Professional & Commercial Equipment & Supplies 0.13%
General Industrial Machinery & Equipment 0.12%
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip 0.12%
Heavy Construction Other Than Bldg Const - Contractors 0.10%
Millwood, Veneer, Plywood, & Structural Wood Members 0.10%
Services-Educational Services 0.10%
Services-Child Day Care Services 0.10%
Air Transportation, Scheduled 0.09%
Wholesale-Industrial Machinery & Equipment 0.09%
Motorcycles, Bicycles & Parts 0.05%
Wholesale-Chemicals & Allied Products 0.05%
Wholesale-Farm Product Raw Materials 0.03%
State Commercial Banks 1.84%
Investment Advice 1.73%
Finance Services 1.53%
Fire, Marine & Casualty Insurance 1.44%
National Commercial Banks 1.12%
Security Brokers, Dealers & Flotation Companies 0.98%
Life Insurance 0.83%
Security & Commodity Brokers, Dealers, Exchanges & Services 0.82%
Personal Credit Institutions 0.54%
Mineral Royalty Traders 0.47%
Surety Insurance 0.40%
Mortgage Bankers & Loan Correspondents 0.31%
Insurance Agents, Brokers & Service 0.31%
Accident & Health Insurance 0.26%
Title Insurance 0.26%
Hospital & Medical Service Plans 0.15%
Patent Owners & Lessors 0.08%
Functions Related To Depository Banking, NEC 0.06%
Loan Brokers 0.03%
Savings Institution, Federally Chartered 0.02%
Services-Business Services, NEC 1.39%
Retail-Eating Places 1.29%
Retail-Catalog & Mail-Order Houses 0.83%
Hotels & Motels 0.71%
Motor Vehicle Parts & Accessories 0.70%
Retail-Auto Dealers & Gasoline Stations 0.61%
Services-Miscellaneous Equipment Rental & Leasing 0.54%
Motor Vehicles & Passenger Car Bodies 0.49%
Retail-Department Stores 0.44%
Services-Miscellaneous Amusement & Recreation 0.43%
Industrial Instruments For Measurement, Display, and Control 0.39%
Retail-Variety Stores 0.39%
Services-Auto Rental & Leasing (No Drivers) 0.34%
Services-To Dwellings & Other Buildings 0.31%
Retail-Grocery Stores 0.30%
Services-Consumer Credit Reporting, Collection Agencies 0.29%
Retail-Computer & Computer Software Stores 0.21%
Apparel & Other Finishd Prods of Fabrics & Similar Matl 0.18%
Retail-Eating & Drinking Places 0.16%
Services-Amusement & Recreation Services 0.14%
Services-Membership Sports & Recreation Clubs 0.14%
Services-Racing, Including Track Operation 0.13%
Retail-Lumber & Other Building Materials Dealers 0.12%
Retail-Family Clothing Stores 0.12%
Carpets & Rugs 0.11%
Totalizing Fluid Meters & Counting Devices 0.11%
Dolls & Stuffed Toys 0.10%
Motor Homes 0.09%
Retail-Retail Stores, NEC 0.08%
Men's & Boys' Furnishgs, Work Clothg, & Allied Garments 0.07%
Search, Detection, Navigation, Guidance, Aeronautical Sys 0.07%
Services-Detective, Guard & Armored Car Services 0.07%
Sporting & Athletic Goods, NEC 0.06%
Retail-Furniture Stores 0.05%
Services-Help Supply Services 0.03%
Pharmaceutical Preparations 4.21%
Biological Products, (No Diagnostic Substances) 1.36%
Surgical & Medical Instruments & Apparatus 0.94%
Services-Medical Laboratories 0.61%
Services-General Medical & Surgical Hospitals, NEC 0.36%
Services-Hospitals 0.21%
Electromedical & Electrotherapeutic Apparatus 0.18%
Dental Equipment & Supplies 0.14%
Orthopedic, Prosthetic & Surgical Appliances & Supplies 0.13%
Services-Home Health Care Services 0.11%
Services-Misc Health & Allied Services, NEC 0.08%
Services-Specialty Outpatient Facilities, NEC 0.05%
Gold and Silver Ores 1.07%
Plastics Products, NEC 0.75%
Metal Mining 0.57%
Chemicals & Allied Products 0.43%
Steel Pipe & Tubes 0.43%
Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) 0.41%
Paints, Varnishes, Lacquers, Enamels & Allied Prods 0.40%
Primary Production of Aluminum 0.37%
Plastic Materials, Synth Resins & Nonvulcan Elastomers 0.32%
Fabricated Rubber Products, NEC 0.30%
Rolling Drawing & Extruding of Nonferrous Metals 0.26%
Abrasive, Asbestos & Misc Nonmetallic Mineral Prods 0.19%
Paperboard Containers & Boxes 0.18%
Industrial Organic Chemicals 0.17%
Miscellaneous Chemical Products 0.17%
Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) 0.16%
Mining & Quarrying of Nonmetallic Minerals (No Fuels) 0.09%
Rubber & Plastics Footwear 0.09%
Agricultural Chemicals 0.06%
Concrete Products, Except Block & Brick 0.06%
Footwear, (No Rubber) 0.03%
Plastics, Foil & Coated Paper Bags 0.02%
Perfumes, Cosmetics & Other Toilet Preparations 0.01%
Real Estate Investment Trusts 4.73%
Real Estate Agents & Managers (For Others) 0.31%
Real Estate 0.09%
Natural Gas Distribution 1.51%
Electric Services 0.92%
Natural Gas Transmission 0.47%
Hazardous Waste Management 0.32%
Water Supply 0.25%
Gas & Other Services Combined 0.17%
Radio Broadcasting Stations 1.72%
Cable & Other Pay Television Services 0.48%
Communications Services, NEC 0.44%
Newspapers: Publishing or Publishing & Printing 0.29%
Television Broadcasting Stations 0.23%
Radiotelephone Communications 0.16%
Crude Petroleum & Natural Gas 1.40%
Miscellaneous Products of Petroleum & Coal 0.09%
Bottled & Canned Soft Drinks & Carbonated Waters 0.36%
Grain Mill Products 0.32%
Fats & Oils 0.21%
Canned, Frozen & Preservd Fruit, Veg & Food Specialties 0.13%
Beverages 0.10%
Food and Kindred Products 0.08%
Malt Beverages 0.04%
Meat Packing Plants 0.03%
Poultry Slaughtering and Processing 0.03%
Unclassified 12.23%

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