Largest Companies by Market Cap - Complete Rankings
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What changed in this ranking
AI-generated summary by Rhea-AI, written on . How Rhea-AI works.
The live ranking is compared with the
Berkshire Hathaway Inc. (BRK.A) departed from rank 35. Several companies made their debuts in the live ranking, including Pioneer Natural Resource Co. (PXD), Electronic Arts Inc (EA), Discover Financial Services (DFS), Vylor Inc. (VYLR) and Hess Corporation (HES). PXD appeared at rank 269, while EA appeared at rank 317. Other departures included Liberty Media Corporation Series A (FWONA), HEICO CORP CL A (HEI.A), Quantinuum Inc. (QNT) and Paramount Skydance Corporation (PSKY).
7 technology companies fell: Seagate Technology Holdings plc (STX), Western Digital Corp. (WDC), Sandisk Corporation (SNDK), Arm Holdings (ARM), KLA Corporation (KLAC), Lam Research Corp (LRCX) and Applied Materials, Inc. (AMAT). Communication Services also had declines from T-Mobile US, Inc. (TMUS) and AT&T (T), while Financial Services saw Citigroup Inc. (C) and Sumitomo Mitsui Financial Group, Inc. (SMFG) fall.
Beyond PBR, other climbers included ConocoPhillips (COP), Shopify Inc. (SHOP), Union Pacific Corp. (UNP), SAP SE (SAP) and McDonald's Corporation (MCD).
Compares today's ranking with the close of September 2026, the most recent month the archive holds. Positions here move with live prices, so a difference against that close is not a completed month's result.
Archive & sectors
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