Largest Companies by Market Cap - Complete Rankings

The sharpest change was Seagate Technology Holdings plc (STX), which fell 32 ranks from rank 71 to rank 103. Arm Holdings (ARM) fell 19 ranks from rank 43 to rank 62. The weakness was concentrated in Technology, with Sandisk Corporation (SNDK), Western Digital Corp. (WDC), KLA Corporation (KLAC), CrowdStrike Holdings (CRWD), Arista Networks (ANET) and Lam Research Corp (LRCX) also falling alongside STX and ARM. Technology supplied 8 of the notable declines.

On the upside, ConocoPhillips (COP) climbed 18 ranks from rank 105 to rank 87, the strongest advance. SAP SE (SAP) and Blackrock, Inc. (BLK) each climbed 13 ranks, while Shopify Inc. (SHOP) and McDonald's Corporation (MCD) each climbed 11 ranks. SAP, SHOP and International Business Machines Corporation (IBM) also formed a 3-company upward cluster within Technology.

Vylor Inc. (VYLR) joined the ranking at rank 328, and Skydance Corporation (SKYD) joined at rank 387. Other additions at the lower universe boundary included Snap Inc. (SNAP), Sasol Limited (SSL), QIAGEN N.V. (QGEN) and Oscar Health, Inc. (OSCR); these were boundary changes rather than first-time debuts. Warner Bros. Discovery, Inc. Series A (WBD) left the ranking after previously holding rank 212. The other departures were Paramount Skydance Corporation (PSKY), Viavi Solutions Inc. (VIAV), Qorvo, Inc. (QRVO), Viasat Inc (VSAT) and MaxLinear, Inc. (MXL).

The current board is compared with the close of September 2026; because the current board is live, the comparison is against a month-end snapshot. The top 10 order did not change.