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Largest Companies by Market Cap - May 2026

The largest US-listed companies by market capitalization as the market stood at the close of May 2026. This ranking is frozen at that date and does not move with today's prices.

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Rank
Symbol
Company Name
Market Cap
Rank Change
Sector
901
$9.84B
▼ 21
Insurance Agents, Brokers & Service
902
$9.77B
▼ 48
Services-skilled Nursing Care Facilities
903
$9.76B
▼ 22
Electric Services
904
$9.70B
▲ 11
Surgical & Medical Instruments & Apparatus
905
$9.69B
▲ 29
Air Transportation, Scheduled
906
$9.69B
▼ 54
Services-computer Integrated Systems Design
907
$9.64B
▲ 2
Real Estate Investment Trusts
908
$9.62B
▼ 12
Services-auto Rental & Leasing (no Drivers)
909
$9.57B
Real Estate Investment Trusts
910
$9.54B
▲ 17
Retail-catalog & Mail-order Houses
911
$9.50B
▼ 73
Retail-computer & Computer Software Stores
912
$9.49B
▼ 36
Industrial & Commercial Fans & Blowers & Air Purifying Equip
913
$9.49B
▼ 12
State Commercial Banks
914
$9.46B
▼ 15
915
$9.42B
▼ 21
Real Estate Investment Trusts
916
$9.35B
▼ 30
Services-business Services, Nec
917
$9.35B
▼ 62
Retail-auto Dealers & Gasoline Stations
918
$9.19B
▼ 12
State Commercial Banks
919
$9.19B
▼ 6
National Commercial Banks
920
$9.15B
921
$9.13B
▲ 2
Electric Lighting & Wiring Equipment
922
$9.11B
▼ 11
National Commercial Banks
923
$9.11B
▲ 12
Biological Products, (no Diagnostic Substances)
924
$9.09B
▼ 20
Security Brokers, Dealers & Flotation Companies
925
$9.07B
▼ 28
Surety Insurance
926
$9.06B
▼ 48
Hospital & Medical Service Plans
927
$9.01B
▲ 3
Services-miscellaneous Amusement & Recreation
928
$8.96B
▲ 11
Laboratory Analytical Instruments
929
$8.91B
▼ 9
930
$8.84B
▼ 53
Services-general Medical & Surgical Hospitals, Nec
931
$8.75B
▲ 1
Services-prepackaged Software
932
$8.73B
▲ 1
Pharmaceutical Preparations
933
$8.70B
▼ 2
Services-commercial Physical & Biological Research
934
$8.42B
▼ 16
National Commercial Banks
935
$8.42B
▼ 13
Life Insurance
936
$8.05B
▼ 11
Biological Products, (no Diagnostic Substances)
937
$7.89B
Biological Products, (no Diagnostic Substances)
938
$7.51B
▲ 2
Pharmaceutical Preparations
939
$7.36B
Services-membership Sports & Recreation Clubs
940
$6.19B
▼ 3
Biological Products, (no Diagnostic Substances)
941
$6.07B
▼ 13
Surgical & Medical Instruments & Apparatus
Ranked at close 941 companies
Rows on this page 41 ranks 901–941
Page 10 of 10
Basis Frozen May 2026 close
Market caps are the share price multiplied by shares outstanding, and a company trading under several share classes appears once. This ranking is informational and is not investment advice.

Between 2026-05-01 and 2026-04-01, both rankings were reconstructed. The biggest advance came from CrowdStrike Holdings, Inc. (CRWD), which climbed 59 places from rank 135 to rank 76. Dell Technologies Inc. (DELL) was close behind, rising 58 places from rank 106 to rank 48.

Other major advances came from Palo Alto Networks, Inc. (PANW), which climbed 39 places from rank 98 to rank 59, and Sandisk Corporation (SNDK), which rose 31 places from rank 84 to rank 53. Applovin Corporation (APP) gained 31 places from rank 96 to rank 65. Arm Holdings plc American (ARM) advanced 27 places from rank 54 to rank 27. Computer Storage Devices supplied a shared upward move, with SNDK, Seagate Technology Holdings PLC (STX) and Western Digital Corp. (WDC) all climbing.

New arrivals included Bank of New York Mellon Corporation (BNY), Cerebras Systems Inc. (CBRS) and Wise Group plc (WSE). BNY arrived at rank 160. CBRS arrived at rank 301. WSE arrived at rank 775. BK left from rank 173, while Coterra Energy Inc. (CTRA) departed from rank 483. Carnival PLC (CUK) left from rank 941 at the universe boundary.

Inside the top 10, Tesla, Inc. (TSLA) overtook Meta Platforms, Inc. (META). Micron Technology, Inc. (MU) passed Walmart Inc. (WMT). On the downside, NextEra Energy, Inc. (NEE) was the sharpest faller, declining 20 places from rank 63 to rank 83. PepsiCo, Inc. (PEP), Deere & Company (DE) and ConocoPhillips (COP) each fell 15 places.

Compares this month's close with the previous month's close. A company that shifted only because another entered or left the ranking above it is not counted as having moved.