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 sharpest change came from Coca-Cola FEMSA, S.A.B DE C.V (KOF), which fell from rank 84 to rank 541, a decline of 457 places. PETROLEO BRASILEIRO S.A.-PETROBRAS (PBR) was the biggest climber, rising from rank 213 to rank 96, a gain of 117 places. Because the current ranking is live, this comparison is against the
Berkshire Hathaway Inc. (BRK.A) left the ranking after holding rank 35. New names included Pioneer Natural Resource Co. (PXD), Electronic Arts Inc (EA) and Hess Corporation (HES). PXD entered at rank 268.
Technology had 7 companies falling together: Seagate Technology Holdings plc (STX), Western Digital Corp. (WDC), Sandisk Corporation (SNDK), Arm Holdings (ARM), Applied Materials, Inc. (AMAT), Qualcomm Inc (QCOM) and Lam Research Corp (LRCX). Energy had 3 upward movers: PBR, ConocoPhillips (COP) and Shell (SHEL).
Beyond those sector clusters, Union Pacific Corp. (UNP) rose from rank 101 to rank 89, a gain of 12 places. Shopify Inc. (SHOP) climbed from rank 79 to rank 68, a gain of 11 places. SAP SE (SAP) rose from rank 64 to rank 55, a gain of 9 places.
There were no order changes among the top 10.
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
Archived months
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