Largest Companies by Market Cap - Complete Rankings

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 2026-09-01 month-end snapshot.

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.