Largest Companies by Market Cap - Complete Rankings

Coca-Cola FEMSA, S.A.B DE C.V (KOF) fell 490 places, from rank 84 to rank 574. PETROLEO BRASILEIRO S.A.-PETROBRAS (PBR) climbed 117 places, from rank 213 to rank 96. The comparison uses the live board against the 2026-09-01 month-end snapshot.

Technology was the clearest concentration of declines, with Seagate Technology Holdings plc (STX), Western Digital Corp. (WDC), Sandisk Corporation (SNDK), Arm Holdings (ARM) and Qualcomm Inc (QCOM) all falling. In Communication Services, T-Mobile US, Inc. (TMUS) and AT&T (T) fell 14 places each, while Verizon Communications Inc. (VZ) also fell. Financial Services showed a similar pattern with Royal Bank of Canada (RY), Mitsubishi UFJ Financial Group, Inc. (MUFG) and Sumitomo Mitsui Financial Group, Inc. (SMFG) all falling.

Shopify Inc. (SHOP) climbed 9 places to rank 70. Blackrock, Inc. (BLK) climbed 7 places to rank 90. Union Pacific Corp. (UNP) climbed 6 places to rank 95.

New arrivals included Pioneer Natural Resource Co. (PXD), Electronic Arts Inc (EA), Discover Financial Services (DFS), Vylor Inc. (VYLR) and Hess Corporation (HES). PXD entered at rank 267.

Berkshire Hathaway Inc. (BRK.A) departed from rank 35. Other departures included Liberty Media Corporation Series A (FWONA), HEICO CORP CL A (HEI.A), Paramount Skydance Corporation (PSKY) and Bruker Corporation (BRKR). There were no company-to-company switches inside the top 10.