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Russell 3000
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Top Russell 3000 Companies by Market Cap and Stocks in 2026

This is the list of the largest public listed companies in the Russell 3000 index ranked by market capitalization, together with links to their reference stock, sector and industry.

Russell 3000 Chart & Analysis

Top Russell 3000 Companies Ranking by Market Cap as of Jan. 1, 2026

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Ranking Company Stock Market Cap (USD) Country Sector Industry
2641 Luna Innovations Incorporated LUNA $39.9 M United States US Technology US Scientific & Technical Instruments
2642 BioXcel Therapeutics, Inc. BTAI $37.2 M United States US Healthcare US Biotechnology
2643 FibroGen, Inc. FGEN $37.1 M United States US Healthcare US Biotechnology
2644 Generation Bio Co. GBIO $36.7 M United States US Healthcare US Biotechnology
2645 Sunnova Energy International Inc. NOVA $35.1 M

(July 1, 2025)

 United States US Technology US Solar
2646 Noodles & Company NDLS $34.7 M United States US Consumer Discretionary US Restaurants
2647 KLX Energy Services Holdings, Inc. KLXE $34.6 M United States US Energy US Oil & Gas Equipment & Services
2648 CarParts.com, Inc. PRTS $32.9 M United States US Consumer Discretionary US Internet Retail
2649 Big 5 Sporting Goods Corporation BGFV $32.5 M

(July 1, 2025)

 United States US Consumer Discretionary US Specialty Retail
2650 BioAtla, Inc. BCAB $31.4 M United States US Healthcare US Biotechnology
2651 Enviva Partners, LP EVA $31.3 M

(July 1, 2025)

 United States US Basic Materials US Lumber & Wood Production
2652 Marinus Pharmaceuticals, Inc. MRNS $29.9 M

(Jan. 1, 2025)

 United States US Healthcare US Biotechnology
2653 Harvard Bioscience, Inc. HBIO $29.1 M United States US Healthcare US Medical Instruments & Supplies
2654 Trinseo SA TSE $23.2 M United States US Basic Materials US Specialty Chemicals
2655 Cano Health, Inc. CANO $21.6 M

(Jan. 1, 2024)

 United States US Healthcare US Medical Care Facilities
2656 Liberty TripAdvisor Holdings, Inc. LTRPB $20.4 M

(April 1, 2025)

 United States US Communication Services US Internet Content & Information
2657 Vicarious Surgical Inc. RBOT $17.9 M United States US Healthcare US Medical Devices
2658 Citius Pharmaceuticals, Inc. CTXR $17.6 M United States US Healthcare US Biotechnology
2659 Leslie's, Inc. LESL $16.1 M United States US Consumer Discretionary US Home Improvement Retail
2660 Nikola Corporation NKLA $15.5 M

(July 1, 2025)

 United States US Consumer Discretionary US Auto Manufacturers
2661 2U, Inc. TWOU $11.1 M

(July 1, 2024)

 United States US Consumer Staples US Education & Training Services
2662 BioVie Inc. BIVI $10.0 M United States US Healthcare US Biotechnology
2663 BioVie Inc. BIVI $10.0 M United States US Healthcare US Biotechnology
2664 Eagle Pharmaceuticals, Inc. EGRX $9.1 M United States US Healthcare US Drug Manufacturers—Specialty & Generic
2665 Cara Therapeutics, Inc. CARA $8.1 M

(April 1, 2025)

 United States US Healthcare US Biotechnology
2666 Luminar Technologies, Inc. LAZR $6.4 M United States US Technology US Software—Application
2667 Beyond Air, Inc. XAIR $6.3 M United States US Healthcare US Medical Devices
2668 iRobot Corporation IRBT $3.5 M United States US Technology US Consumer Electronics
2669 Danimer Scientific, Inc. DNMR $3.4 M

(Dec. 1, 2025)

 United States US Basic Materials US Specialty Chemicals
2670 NanoString Technologies, Inc. NSTG $3.4 M

(May 1, 2025)

 United States US Healthcare US Biotechnology

Top Russell 3000 Companies Ranking by Market Cap as of Jan. 1, 2026

2641. Luna Innovations Incorporated

Company Profile: Luna Innovations Incorporated
Market Cap (USD): $39.9 M
Stock: LUNA wb_incandescent
Country: United States
Sector: US Technology
Industry: US Scientific & Technical Instruments

2642. BioXcel Therapeutics, Inc.

Company Profile: BioXcel Therapeutics, Inc.
Market Cap (USD): $37.2 M
Stock: BTAI wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2643. FibroGen, Inc.

Company Profile: FibroGen, Inc.
Market Cap (USD): $37.1 M
Stock: FGEN wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2644. Generation Bio Co.

Company Profile: Generation Bio Co.
Market Cap (USD): $36.7 M
Stock: GBIO wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2645. Sunnova Energy International Inc.

Company Profile: Sunnova Energy International Inc.
Market Cap (USD): $35.1 M (July 1, 2025)
Stock: NOVA wb_incandescent
Country: United States
Sector: US Technology
Industry: US Solar

2646. Noodles & Company

Company Profile: Noodles & Company
Market Cap (USD): $34.7 M
Stock: NDLS wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Restaurants

2647. KLX Energy Services Holdings, Inc.

Company Profile: KLX Energy Services Holdings, Inc.
Market Cap (USD): $34.6 M
Stock: KLXE wb_incandescent
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

2648. CarParts.com, Inc.

Company Profile: CarParts.com, Inc.
Market Cap (USD): $32.9 M
Stock: PRTS wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Internet Retail

2649. Big 5 Sporting Goods Corporation

Company Profile: Big 5 Sporting Goods Corporation
Market Cap (USD): $32.5 M (July 1, 2025)
Stock: BGFV wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Specialty Retail

2650. BioAtla, Inc.

Company Profile: BioAtla, Inc.
Market Cap (USD): $31.4 M
Stock: BCAB wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2651. Enviva Partners, LP

Company Profile: Enviva Partners, LP
Market Cap (USD): $31.3 M (July 1, 2025)
Stock: EVA wb_incandescent
Country: United States
Sector: US Basic Materials
Industry: US Lumber & Wood Production

2652. Marinus Pharmaceuticals, Inc.

Company Profile: Marinus Pharmaceuticals, Inc.
Market Cap (USD): $29.9 M (Jan. 1, 2025)
Stock: MRNS wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2653. Harvard Bioscience, Inc.

Company Profile: Harvard Bioscience, Inc.
Market Cap (USD): $29.1 M
Stock: HBIO wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

2654. Trinseo SA

Company Profile: Trinseo SA
Market Cap (USD): $23.2 M
Stock: TSE wb_incandescent
Country: United States
Sector: US Basic Materials
Industry: US Specialty Chemicals

2655. Cano Health, Inc.

Company Profile: Cano Health, Inc.
Market Cap (USD): $21.6 M (Jan. 1, 2024)
Stock: CANO wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Care Facilities

2656. Liberty TripAdvisor Holdings, Inc.

Company Profile: Liberty TripAdvisor Holdings, Inc.
Market Cap (USD): $20.4 M (April 1, 2025)
Stock: LTRPB wb_incandescent
Country: United States
Sector: US Communication Services
Industry: US Internet Content & Information

2657. Vicarious Surgical Inc.

Company Profile: Vicarious Surgical Inc.
Market Cap (USD): $17.9 M
Stock: RBOT wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

2658. Citius Pharmaceuticals, Inc.

Company Profile: Citius Pharmaceuticals, Inc.
Market Cap (USD): $17.6 M
Stock: CTXR wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2659. Leslie's, Inc.

Company Profile: Leslie's, Inc.
Market Cap (USD): $16.1 M
Stock: LESL wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Home Improvement Retail

2660. Nikola Corporation

Company Profile: Nikola Corporation
Market Cap (USD): $15.5 M (July 1, 2025)
Stock: NKLA wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Manufacturers

2661. 2U, Inc.

Company Profile: 2U, Inc.
Market Cap (USD): $11.1 M (July 1, 2024)
Stock: TWOU wb_incandescent
Country: United States
Sector: US Consumer Staples
Industry: US Education & Training Services

2662. BioVie Inc.

Company Profile: BioVie Inc.
Market Cap (USD): $10.0 M
Stock: BIVI wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2663. BioVie Inc.

Company Profile: BioVie Inc.
Market Cap (USD): $10.0 M
Stock: BIVI wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2664. Eagle Pharmaceuticals, Inc.

Company Profile: Eagle Pharmaceuticals, Inc.
Market Cap (USD): $9.1 M
Stock: EGRX wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Drug Manufacturers—Specialty & Generic

2665. Cara Therapeutics, Inc.

Company Profile: Cara Therapeutics, Inc.
Market Cap (USD): $8.1 M (April 1, 2025)
Stock: CARA wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

2666. Luminar Technologies, Inc.

Company Profile: Luminar Technologies, Inc.
Market Cap (USD): $6.4 M
Stock: LAZR wb_incandescent
Country: United States
Sector: US Technology
Industry: US Software—Application

2667. Beyond Air, Inc.

Company Profile: Beyond Air, Inc.
Market Cap (USD): $6.3 M
Stock: XAIR wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

2668. iRobot Corporation

Company Profile: iRobot Corporation
Market Cap (USD): $3.5 M
Stock: IRBT wb_incandescent
Country: United States
Sector: US Technology
Industry: US Consumer Electronics

2669. Danimer Scientific, Inc.

Company Profile: Danimer Scientific, Inc.
Market Cap (USD): $3.4 M (Dec. 1, 2025)
Stock: DNMR wb_incandescent
Country: United States
Sector: US Basic Materials
Industry: US Specialty Chemicals

2670. NanoString Technologies, Inc.

Company Profile: NanoString Technologies, Inc.
Market Cap (USD): $3.4 M (May 1, 2025)
Stock: NSTG wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

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