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.
Seagate Technology Holdings plc (STX) fell 38 places to rank 109 from rank 71. Technology had 6 fallers, including Sandisk Corporation (SNDK), Western Digital Corp. (WDC), KLA Corporation (KLAC), Arm Holdings (ARM) and Lam Research Corp (LRCX). AT&T (T) also fell 22 places to rank 115 from rank 93.
On the upside, ConocoPhillips (COP) climbed 21 places to rank 84 from rank 105. Blackrock, Inc. (BLK) climbed 14 places to rank 83 from rank 97. Technology also had 4 climbers: ServiceNow, Inc. (NOW), SAP SE (SAP), International Business Machines Corporation (IBM) and Shopify Inc. (SHOP). Energy had 3 climbers, with TotalEnergies SE (TTE) and Shell (SHEL) alongside COP.
In the top 10, Microsoft Corp (MSFT) overtook Alphabet Inc. (GOOGL). Vylor Inc. (VYLR) debuted at rank 324. Skydance Corporation (SKYD) debuted at rank 401. Warner Bros. Discovery, Inc. Series A (WBD) left the ranking from rank 212.
The current board is live, so the comparison is with the month-end snapshot at the close of September 2026. Snap Inc. (SNAP), Match Group, Inc (MTCH) and DraftKings Inc. (DKNG) also appeared at the universe boundary.
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.
Archived months
Archived months
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