TWCCX
Ultra Fund
American Century Mutual Funds, Inc.

Allocation breakdown

As of January 31, 2026 · N-PORT

By asset class

By country

By sector

By industry (SIC code)

As of January 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.

Semiconductors & Related Devices 21.72%
Services-Computer Programming, Data Processing, Etc. 14.82%
Services-Prepackaged Software 12.50%
Electronic Computers 8.31%
Electronic Connectors 1.18%
Electronic Components, NEC 0.96%
Services-Computer Programming Services 0.93%
Electric Lighting & Wiring Equipment 0.58%
Telephone & Telegraph Apparatus 0.22%
Radio & Tv Broadcasting & Communications Equipment 0.19%
Retail-Catalog & Mail-Order Houses 7.76%
Services-Business Services, NEC 5.26%
Motor Vehicles & Passenger Car Bodies 4.56%
Retail-Variety Stores 2.17%
Retail-Eating Places 0.86%
Men's & Boys' Furnishgs, Work Clothg, & Allied Garments 0.22%
Retail-Auto Dealers & Gasoline Stations 0.19%
Pharmaceutical Preparations 4.13%
Orthopedic, Prosthetic & Surgical Appliances & Supplies 1.67%
Surgical & Medical Instruments & Apparatus 0.69%
In Vitro & In Vivo Diagnostic Substances 0.65%
Special Industry Machinery, NEC 1.43%
Railroad Equipment 0.62%
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip 0.43%
Transportation Services 0.36%
Industrial & Commercial Fans & Blowers & Air Purifing Equip 0.34%
Water Transportation 0.31%
Aircraft Engines & Engine Parts 0.26%
General Industrial Machinery & Equipment, NEC 0.24%
Services-Video Tape Rental 2.22%
Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics 0.87%
Rolling Drawing & Extruding of Nonferrous Metals 0.73%
Security Brokers, Dealers & Flotation Companies 1.06%
Security & Commodity Brokers, Dealers, Exchanges & Services 0.30%
Insurance Agents, Brokers & Service 0.17%
Crude Petroleum & Natural Gas 0.26%
Electric Services 0.20%
Unclassified 0.64%

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