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Philadelphia Semiconductor Index
About Philadelphia Semiconductor Index
The PHLX Semiconductor Index (SOX) is a capitalisation-weighted index of 30 companies primarily involved in the design, distribution, manufacture, and sale of semiconductors. Given the growing importance of chips in AI, automotive, and data centres, SOX has become one of the most closely tracked sector indices.
Philadelphia Semiconductor Index Price Chart
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Components
30 semiconductor companies including Nvidia, AMD, Intel, Broadcom, Texas Instruments, ASML, Qualcomm, and Applied Materials.
Trading Hours
Regular session: 09:30–16:00 ET (Mon–Fri).
Fact Sheet
Launched in 1993 by the Philadelphia Stock Exchange (now part of Nasdaq). Modified market-cap weighted. Rebalanced annually in September.
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