Largest Companies by Market Cap - Complete Rankings

The live ranking is compared with the 2026-09-01 month-end snapshot. Coca-Cola FEMSA, S.A.B DE C.V (KOF) fell 466 places, from rank 84 to rank 550; 11 places of that change reflected shifts above it, leaving a 455-place move after those shifts. PETROLEO BRASILEIRO S.A.-PETROBRAS (PBR) climbed 114 places from rank 213 to rank 99, with 113 places remaining after a 1-place shift above it.

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).