Largest Companies by Market Cap - October 2025
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Micron Technology, Inc. (MU) climbed 22 places, from rank 62 to rank 40. Semiconductors were the clearest upward cluster, with MU, Intel Corp (INTC) and Advanced Micro Devices (AMD) all climbing. Texas Instruments Incorporated (TXN) fell 19 places, from rank 76 to rank 95.
Arm Holdings plc American (ARM) climbed 18 places, from rank 90 to rank 72. Intuitive Surgical Inc. (ISRG) rose 17 places, from rank 85 to rank 68. Lam Research Corp (LRCX) rose 16 places, from rank 77 to rank 61, while Amphenol Corporation (APH) climbed 15 places, from rank 89 to rank 74.
Apple Inc. (AAPL) moved to No. 2 in the top 10. Microsoft Corp (MSFT) moved to No. 3. Tesla, Inc. (TSLA) and Broadcom Inc. (AVGO) each moved ahead of Meta Platforms, Inc. (META) in the top 10. META fell to No. 8.
Among the biggest decliners, AT&T Inc. (T) and Progressive Corporation (PGR) each fell 20 places. Verizon Communications (VZ) slipped 15 places, from rank 66 to rank 81. Linde plc (LIN) fell 14 places, from rank 50 to rank 64. Mr. Cooper Group Inc. (COOP) left the ranking after holding rank 728 in September. No new company appeared.
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Compares this month's close with the previous month's close. A company that shifted only because another entered or left the ranking above it is not counted as having moved.