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 biggest change was Coca-Cola FEMSA, S.A.B DE C.V (KOF), which fell 493 places from rank 84 to rank 577. The live ranking is compared with the
Technology was a notable source of declines, led by Seagate Technology Holdings plc (STX) and Western Digital Corp. (WDC). STX fell 9 places from rank 71 to rank 80. WDC fell 7 places from rank 98 to rank 105. Financial Services also produced a cluster of fallers: Mitsubishi UFJ Financial Group, Inc. (MUFG), HSBC Holdings plc (HSBC), Goldman Sachs Group Inc. (GS) and Toronto Dominion Bank (TD) all fell.
On the upside, Union Pacific Corp. (UNP) was a leading climber, rising 7 places from rank 101 to rank 94. KLA Corporation (KLAC) climbed 6 places from rank 58 to rank 52.
Berkshire Hathaway Inc. (BRK.A) left the ranking after holding No. 35 in the previous snapshot. Its departure shifted T-Mobile US, Inc. (TMUS), Southern Copper Corporation (SCCO) and Blackrock, Inc. (BLK) 1 place higher in the list without representing a change of their own. New names also appeared: Pioneer Natural Resource Co. (PXD) entered at rank 271, while Electronic Arts Inc (EA) entered at rank 314. The top 10 otherwise kept the same order.
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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