STOCK TITAN

Largest Companies by Market Cap - October 2025

The largest US-listed companies by market capitalization as the market stood at the close of October 2025. 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
401
$33.98B
▲ 38
Electrical Work
402
$33.92B
▼ 1
403
$33.89B
▼ 19
Semiconductors & Related Devices
404
$33.85B
▼ 9
X-ray Apparatus & Tubes & Related Irradiation Apparatus
405
$33.64B
▼ 29
Fire, Marine & Casualty Insurance
406
$33.61B
▲ 16
Electronic Computers
407
$33.52B
▼ 13
Crude Petroleum & Natural Gas
408
$33.41B
▲ 11
Hospital & Medical Service Plans
409
$33.21B
▲ 39
410
$33.13B
▲ 53
411
$33.11B
▼ 34
Natural Gas Transmission
412
$33.03B
▼ 14
413
$32.83B
▲ 15
Services-computer Programming Services
414
$32.62B
▲ 42
Computer Storage Devices
415
$32.49B
▲ 2
416
$32.34B
▼ 9
Computer & Office Equipment
417
$32.32B
▼ 24
Services-business Services, Nec
418
$32.15B
▼ 19
419
$32.06B
▼ 34
Real Estate Investment Trusts
420
$32.00B
▼ 20
Semiconductors & Related Devices
421
$31.77B
▼ 9
State Commercial Banks
422
$31.56B
▼ 18
Finance Services
423
$31.29B
▼ 10
424
$31.27B
▲ 6
Industrial Instruments for Measurement, Display, and Control
425
$31.20B
▼ 42
National Commercial Banks
426
$31.15B
▲ 168
Communications Services, Nec
427
$30.82B
▲ 19
428
$30.63B
▼ 1
Real Estate Investment Trusts
429
$30.52B
▼ 13
Air Transportation, Scheduled
430
$30.48B
▼ 27
Security Brokers, Dealers & Flotation Companies
431
$30.18B
▲ 39
Security & Commodity Brokers, Dealers, Exchanges & Services
432
$30.03B
▲ 9
Electrical Work
433
$29.87B
▼ 25
General Industrial Machinery & Equipment
434
$29.82B
▼ 8
General Bldg Contractors - Residential Bldgs
435
$29.52B
▲ 211
Computer Storage Devices
436
$29.43B
▼ 13
Fire, Marine & Casualty Insurance
437
$29.38B
▲ 28
438
$29.32B
▼ 14
Canned, Frozen & Preservd Fruit, Veg & Food Specialties
439
$29.20B
▼ 1
Trucking (no Local)
440
$29.17B
▲ 2
Fats & Oils
441
$29.08B
▼ 31
Insurance Agents, Brokers & Service
442
$28.99B
▲ 18
443
$28.94B
▲ 43
Services-prepackaged Software
444
$28.94B
▼ 10
445
$28.90B
▲ 2
Grain Mill Products
446
$28.68B
▲ 62
Semiconductors & Related Devices
447
$28.66B
▲ 2
Natural Gas Distribution
448
$28.62B
▲ 42
Laboratory Analytical Instruments
449
$28.49B
▲ 70
Services-medical Laboratories
450
$28.47B
▼ 44
Services-computer Processing & Data Preparation
451
$28.47B
▼ 6
452
$28.45B
▲ 91
Instruments for Meas & Testing of Electricity & Elec Signals
453
$28.38B
▼ 22
Retail-building Materials, Hardware, Garden Supply
454
$28.23B
▼ 14
Electric & Other Services Combined
455
$28.21B
▼ 23
Real Estate Investment Trusts
456
$28.20B
▼ 20
Electric Services
457
$28.14B
▼ 42
Finance Services
458
$27.90B
▲ 42
459
$27.89B
▼ 54
Cable & Other Pay Television Services
460
$27.88B
▼ 69
Services-business Services, Nec
461
$27.76B
▲ 7
Electric Services
462
$27.75B
▲ 7
463
$27.72B
▼ 11
Services-to Dwellings & Other Buildings
464
$27.59B
▼ 43
Perfumes, Cosmetics & Other Toilet Preparations
465
$27.57B
▼ 32
466
$27.53B
▼ 29
467
$27.48B
▼ 13
Electric Services
468
$27.15B
▲ 4
Television Broadcasting Stations
469
$27.13B
▼ 14
470
$26.88B
▲ 96
Telephone & Telegraph Apparatus
471
$26.68B
▼ 57
Insurance Agents, Brokers & Service
472
$26.65B
▼ 28
State Commercial Banks
473
$26.52B
▼ 2
Electric Services
474
$26.47B
▼ 24
Fire, Marine & Casualty Insurance
475
$26.40B
▲ 6
Transportation Services
476
$26.33B
▼ 15
Services-prepackaged Software
477
$26.29B
▲ 22
478
$26.28B
▲ 9
479
$26.14B
▼ 26
480
$26.02B
▼ 5
481
$25.82B
▲ 76
Optical Instruments & Lenses
482
$25.71B
▼ 2
Security & Commodity Brokers, Dealers, Exchanges & Services
483
$25.58B
▲ 20
Services-computer Programming, Data Processing, Etc.
484
$25.57B
▼ 5
485
$25.52B
▼ 28
Water Supply
486
$25.49B
▼ 27
Services-business Services, Nec
487
$25.30B
▲ 2
Computer & Office Equipment
488
$25.25B
▼ 14
Natural Gas Distribution
489
$25.20B
▲ 16
Services-prepackaged Software
490
$25.19B
▼ 8
Electric Services
491
$25.08B
▼ 6
492
$25.02B
▼ 19
Television Broadcasting Stations
493
$24.88B
▼ 26
Grain Mill Products
494
$24.84B
▼ 36
Real Estate Investment Trusts
495
$24.83B
▲ 32
Electronic Components & Accessories
496
$24.80B
▼ 67
Services-consumer Credit Reporting, Collection Agencies
497
$24.66B
▼ 20
Security & Commodity Brokers, Dealers, Exchanges & Services
498
$24.58B
▼ 3
499
$24.46B
▲ 10
Fire, Marine & Casualty Insurance
500
$24.44B
▲ 32
Construction, Mining & Materials Handling Machinery & Equip
Ranked at close 942 companies
Rows on this page 100 ranks 401–500
Page 5 of 10
Basis Frozen October 2025 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.

Micron Technology, Inc. (MU) climbed 22 places, from rank 62 to rank 40. Semiconductors were the clearest upward cluster, with MU, Intel Corp (INTC) and Advanced Micro Devices (AMD) all climbing. Texas Instruments Incorporated (TXN) fell 19 places, from rank 76 to rank 95.

Arm Holdings plc American (ARM) climbed 18 places, from rank 90 to rank 72. Intuitive Surgical Inc. (ISRG) rose 17 places, from rank 85 to rank 68. Lam Research Corp (LRCX) rose 16 places, from rank 77 to rank 61, while Amphenol Corporation (APH) climbed 15 places, from rank 89 to rank 74.

Apple Inc. (AAPL) moved to No. 2 in the top 10. Microsoft Corp (MSFT) moved to No. 3. Tesla, Inc. (TSLA) and Broadcom Inc. (AVGO) each moved ahead of Meta Platforms, Inc. (META) in the top 10. META fell to No. 8.

Among the biggest decliners, AT&T Inc. (T) and Progressive Corporation (PGR) each fell 20 places. Verizon Communications (VZ) slipped 15 places, from rank 66 to rank 81. Linde plc (LIN) fell 14 places, from rank 50 to rank 64. Mr. Cooper Group Inc. (COOP) left the ranking after holding rank 728 in September. No new company appeared.

Both the 2025-10-01 and 2025-09-01 rankings were reconstructed.

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.