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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
961 Riot Blockchain, Inc. RIOT $5.26 B United States US Technology US Software—Application
962 Resideo Technologies, Inc. REZI $5.26 B United States US Industrials US Security & Protection Services
963 Bank OZK OZK $5.26 B United States US Financials US Banks—Regional
964 CNX Resources Corporation CNX $5.26 B United States US Energy US Oil & Gas E&P
965 Black Hills Corporation BKH $5.26 B United States US Utilities US Utilities—Diversified
966 Vicor Corporation VICR $5.25 B United States US Technology US Electronic Components
967 Arcosa, Inc. ACA $5.24 B United States US Industrials US Infrastructure Operations
968 Option Care Health, Inc. OPCH $5.23 B United States US Healthcare US Medical Care Facilities
969 Immunovant, Inc. IMVT $5.22 B United States US Healthcare US Biotechnology
970 KBR, Inc. KBR $5.22 B United States US Industrials US Engineering & Construction
971 Gentex Corporation GNTX $5.20 B United States US Consumer Discretionary US Auto Parts
972 Badger Meter, Inc. BMI $5.20 B United States US Industrials US Electrical Equipment & Parts
973 Post Holdings, Inc. POST $5.20 B United States US Consumer Staples US Packaged Foods
974 Granite Construction Incorporated GVA $5.20 B United States US Industrials US Engineering & Construction
975 White Mountains Insurance Group, Ltd. WTM $5.19 B Bermuda Bermuda Financials Bermuda Insurance—Property & Casualty
976 Merit Medical Systems, Inc. MMSI $5.13 B United States US Healthcare US Medical Instruments & Supplies
977 ESCO Technologies Inc. ESE $5.11 B United States US Technology US Scientific & Technical Instruments
978 Credit Acceptance Corporation CACC $5.10 B United States US Financials US Credit Services
979 Viasat, Inc. VSAT $5.09 B United States US Technology US Communication Equipment
980 WEX Inc. WEX $5.09 B United States US Technology US Software—Infrastructure
981 StoneX Group Inc. SNEX $5.09 B United States US Financials US Capital Markets
982 Landstar System, Inc. LSTR $5.09 B United States US Industrials US Integrated Freight & Logistics
983 Mercury General Corporation MCY $5.08 B United States US Financials US Insurance—Property & Casualty
984 Sensata Technologies Holding plc ST $5.08 B United States US Technology US Scientific & Technical Instruments
985 Selective Insurance Group, Inc. SIGI $5.08 B United States US Financials US Insurance—Property & Casualty
986 Bill.com Holdings, Inc. BILL $5.08 B United States US Technology US Software—Application
987 Ameris Bancorp ABCB $5.07 B United States US Financials US Banks—Regional
988 Herc Holdings Inc. HRI $5.07 B United States US Industrials US Rental & Leasing Services
989 Atlantic Union Bankshares Corporation AUB $5.06 B United States US Financials US Banks—Regional
990 ChampionX Corporation CHX $5.06 B

(July 1, 2025)

 United States US Energy US Oil & Gas Equipment & Services

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

961. Riot Blockchain, Inc.

Company Profile: Riot Blockchain, Inc.
Market Cap (USD): $5.26 B
Stock: RIOT wb_incandescent
Country: United States
Sector: US Technology
Industry: US Software—Application

962. Resideo Technologies, Inc.

Company Profile: Resideo Technologies, Inc.
Market Cap (USD): $5.26 B
Stock: REZI wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Security & Protection Services

963. Bank OZK

Company Profile: Bank OZK
Market Cap (USD): $5.26 B
Stock: OZK wb_incandescent
Country: United States
Sector: US Financials
Industry: US Banks—Regional

964. CNX Resources Corporation

Company Profile: CNX Resources Corporation
Market Cap (USD): $5.26 B
Stock: CNX wb_incandescent
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

965. Black Hills Corporation

Company Profile: Black Hills Corporation
Market Cap (USD): $5.26 B
Stock: BKH wb_incandescent
Country: United States
Sector: US Utilities
Industry: US Utilities—Diversified

966. Vicor Corporation

Company Profile: Vicor Corporation
Market Cap (USD): $5.25 B
Stock: VICR wb_incandescent
Country: United States
Sector: US Technology
Industry: US Electronic Components

967. Arcosa, Inc.

Company Profile: Arcosa, Inc.
Market Cap (USD): $5.24 B
Stock: ACA wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Infrastructure Operations

968. Option Care Health, Inc.

Company Profile: Option Care Health, Inc.
Market Cap (USD): $5.23 B
Stock: OPCH wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Care Facilities

969. Immunovant, Inc.

Company Profile: Immunovant, Inc.
Market Cap (USD): $5.22 B
Stock: IMVT wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Biotechnology

970. KBR, Inc.

Company Profile: KBR, Inc.
Market Cap (USD): $5.22 B
Stock: KBR wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

971. Gentex Corporation

Company Profile: Gentex Corporation
Market Cap (USD): $5.20 B
Stock: GNTX wb_incandescent
Country: United States
Sector: US Consumer Discretionary
Industry: US Auto Parts

972. Badger Meter, Inc.

Company Profile: Badger Meter, Inc.
Market Cap (USD): $5.20 B
Stock: BMI wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Electrical Equipment & Parts

973. Post Holdings, Inc.

Company Profile: Post Holdings, Inc.
Market Cap (USD): $5.20 B
Stock: POST wb_incandescent
Country: United States
Sector: US Consumer Staples
Industry: US Packaged Foods

974. Granite Construction Incorporated

Company Profile: Granite Construction Incorporated
Market Cap (USD): $5.20 B
Stock: GVA wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Engineering & Construction

975. White Mountains Insurance Group, Ltd.

Company Profile: White Mountains Insurance Group, Ltd.
Market Cap (USD): $5.19 B
Stock: WTM wb_incandescent
Country: Bermuda
Sector: Bermuda Financials
Industry: Bermuda Insurance—Property & Casualty

976. Merit Medical Systems, Inc.

Company Profile: Merit Medical Systems, Inc.
Market Cap (USD): $5.13 B
Stock: MMSI wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Instruments & Supplies

977. ESCO Technologies Inc.

Company Profile: ESCO Technologies Inc.
Market Cap (USD): $5.11 B
Stock: ESE wb_incandescent
Country: United States
Sector: US Technology
Industry: US Scientific & Technical Instruments

978. Credit Acceptance Corporation

Company Profile: Credit Acceptance Corporation
Market Cap (USD): $5.10 B
Stock: CACC wb_incandescent
Country: United States
Sector: US Financials
Industry: US Credit Services

979. Viasat, Inc.

Company Profile: Viasat, Inc.
Market Cap (USD): $5.09 B
Stock: VSAT wb_incandescent
Country: United States
Sector: US Technology
Industry: US Communication Equipment

980. WEX Inc.

Company Profile: WEX Inc.
Market Cap (USD): $5.09 B
Stock: WEX wb_incandescent
Country: United States
Sector: US Technology
Industry: US Software—Infrastructure

981. StoneX Group Inc.

Company Profile: StoneX Group Inc.
Market Cap (USD): $5.09 B
Stock: SNEX wb_incandescent
Country: United States
Sector: US Financials
Industry: US Capital Markets

982. Landstar System, Inc.

Company Profile: Landstar System, Inc.
Market Cap (USD): $5.09 B
Stock: LSTR wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Integrated Freight & Logistics

983. Mercury General Corporation

Company Profile: Mercury General Corporation
Market Cap (USD): $5.08 B
Stock: MCY wb_incandescent
Country: United States
Sector: US Financials
Industry: US Insurance—Property & Casualty

984. Sensata Technologies Holding plc

Company Profile: Sensata Technologies Holding plc
Market Cap (USD): $5.08 B
Stock: ST wb_incandescent
Country: United States
Sector: US Technology
Industry: US Scientific & Technical Instruments

985. Selective Insurance Group, Inc.

Company Profile: Selective Insurance Group, Inc.
Market Cap (USD): $5.08 B
Stock: SIGI wb_incandescent
Country: United States
Sector: US Financials
Industry: US Insurance—Property & Casualty

986. Bill.com Holdings, Inc.

Company Profile: Bill.com Holdings, Inc.
Market Cap (USD): $5.08 B
Stock: BILL wb_incandescent
Country: United States
Sector: US Technology
Industry: US Software—Application

987. Ameris Bancorp

Company Profile: Ameris Bancorp
Market Cap (USD): $5.07 B
Stock: ABCB wb_incandescent
Country: United States
Sector: US Financials
Industry: US Banks—Regional

988. Herc Holdings Inc.

Company Profile: Herc Holdings Inc.
Market Cap (USD): $5.07 B
Stock: HRI wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Rental & Leasing Services

989. Atlantic Union Bankshares Corporation

Company Profile: Atlantic Union Bankshares Corporation
Market Cap (USD): $5.06 B
Stock: AUB wb_incandescent
Country: United States
Sector: US Financials
Industry: US Banks—Regional

990. ChampionX Corporation

Company Profile: ChampionX Corporation
Market Cap (USD): $5.06 B (July 1, 2025)
Stock: CHX wb_incandescent
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

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