FundWatcher
MRGAX
MFS Core Equity Fund
MFS SERIES TRUST I

Allocation breakdown

As of February 28, 2026 · N-PORT

By asset class

By country

By sector

By industry (SIC code)

As of February 28, 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.

Semiconductors & Related Devices 10.19%
Services-Prepackaged Software 8.79%
Services-Computer Programming, Data Processing, Etc. 7.24%
Electronic Computers 5.90%
Electronic & Other Electrical Equipment (No Computer Equip) 1.95%
Optical Instruments & Lenses 1.14%
Laboratory Analytical Instruments 0.81%
Computer Communications Equipment 0.76%
Electronic Connectors 0.65%
Services-Computer Integrated Systems Design 0.47%
Computer Storage Devices 0.41%
Electronic Components, NEC 0.31%
Services-Computer Processing & Data Preparation 0.23%
Retail-Catalog & Mail-Order Houses 4.07%
Services-Business Services, NEC 3.26%
Retail-Building Materials, Hardware, Garden Supply 0.78%
Services-Consumer Credit Reporting, Collection Agencies 0.77%
Retail-Family Clothing Stores 0.66%
Auto Controls For Regulating Residential & Comml Environments 0.60%
Industrial Instruments For Measurement, Display, and Control 0.55%
Retail-Lumber & Other Building Materials Dealers 0.55%
Retail-Auto Dealers & Gasoline Stations 0.55%
Retail-Eating & Drinking Places 0.52%
Hotels & Motels 0.45%
Motor Vehicle Parts & Accessories 0.35%
Retail-Eating Places 0.33%
Services-Miscellaneous Amusement & Recreation 0.33%
Apparel & Other Finishd Prods of Fabrics & Similar Matl 0.20%
Services-Detective, Guard & Armored Car Services 0.18%
Services-Amusement & Recreation Services 0.14%
Services-Advertising Agencies 0.12%
National Commercial Banks 3.53%
Security Brokers, Dealers & Flotation Companies 1.50%
Insurance Agents, Brokers & Service 1.34%
Fire, Marine & Casualty Insurance 1.33%
Hospital & Medical Service Plans 0.90%
Investment Advice 0.56%
Security & Commodity Brokers, Dealers, Exchanges & Services 0.48%
State Commercial Banks 0.33%
Accident & Health Insurance 0.25%
Insurance Carriers, NEC 0.17%
Finance Services 0.02%
Special Industry Machinery, NEC 1.62%
Construction Machinery & Equip 0.97%
Misc Industrial & Commercial Machinery & Equipment 0.83%
Aircraft Engines & Engine Parts 0.81%
Construction - Special Trade Contractors 0.50%
Water, Sewer, Pipeline, Comm & Power Line Construction 0.46%
General Industrial Machinery & Equipment, NEC 0.44%
Wholesale-Drugs, Proprietaries & Druggists' Sundries 0.43%
Special Industry Machinery (No Metalworking Machinery) 0.37%
Heavy Construction Other Than Bldg Const - Contractors 0.34%
Ship & Boat Building & Repairing 0.34%
Engines & Turbines 0.28%
Water Transportation 0.24%
Wholesale-Hardware & Plumbing & Heating Equipment & Supplies 0.23%
Wholesale-Motor Vehicles & Motor Vehicle Parts & Supplies 0.22%
Miscellaneous Fabricated Metal Products 0.21%
Wholesale-Groceries, General Line 0.21%
Services-Commercial Physical & Biological Research 0.20%
Oil & Gas Field Machinery & Equipment 0.17%
General Industrial Machinery & Equipment 0.14%
Services-Educational Services 0.14%
Services-Child Day Care Services 0.14%
Pharmaceutical Preparations 4.21%
Biological Products, (No Diagnostic Substances) 2.21%
Surgical & Medical Instruments & Apparatus 1.03%
Electromedical & Electrotherapeutic Apparatus 0.87%
Services-Medical Laboratories 0.15%
Electric & Other Services Combined 1.35%
Electric Services 0.69%
Refuse Systems 0.60%
Natural Gas Distribution 0.44%
Petroleum Refining 2.43%
Oil & Gas Field Services, NEC 0.25%
Crude Petroleum & Natural Gas 0.19%
Perfumes, Cosmetics & Other Toilet Preparations 0.64%
Rolling Drawing & Extruding of Nonferrous Metals 0.42%
Industrial Inorganic Chemicals 0.41%
Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics 0.31%
Footwear, (No Rubber) 0.28%
Plastic Materials, Synth Resins & Nonvulcan Elastomers 0.24%
Converted Paper & Paperboard Prods (No Contaners/Boxes) 0.20%
Paperboard Containers & Boxes 0.18%
Beverages 0.73%
Cigarettes 0.65%
Food and Kindred Products 0.39%
Bottled & Canned Soft Drinks & Carbonated Waters 0.34%
Poultry Slaughtering and Processing 0.15%
Radiotelephone Communications 0.76%
Radio Broadcasting Stations 0.68%
Communications Services, NEC 0.27%
Cable & Other Pay Television Services 0.23%
Real Estate Investment Trusts 1.42%
— Unclassified 4.32%

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.