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Semiconductor Stocks Account for Over Half of S&P 500 Year-to-Date Gain

Semiconductor stocks contributed more than half of the S&P 500's 8 percent gain this year. The sector has also risen 64 percent, outpacing the broader index.

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1 source·May 18, 5:48 PM(11 days ago)·1m read
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Semiconductor Stocks Account for Over Half of S&P 500 Year-to-Date Gainfinance.yahoo.com
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Semiconductor stocks have accounted for more than half of the S&P 500's 8 percent year-to-date gain, adding 563 index points, according to data reported by @KobeissiLetter. NVIDIA alone contributed 110 index points. Micron added 58 points, Broadcom 44 points, AMD 40 points, and Intel 39 points. The remaining 495 stocks in the index contributed 272 points combined.

The Semiconductor index, known as SOX, has risen 64 percent this year. That pace is eight times the performance of the S&P 500. Chip stocks now represent 18 percent of the S&P 500's total market capitalization, near a record level. @KobeissiLetter described the concentration as a modern-day gold rush.

Key Facts

563 index points
from semiconductor stocks in S&P 500 YTD gain
110 index points
contributed by NVIDIA alone
64 percent
rise in Semiconductor index this year
18 percent
share of S&P 500 market cap held by chip stocks

Potential Impact

  1. 01

    Heavy weighting may increase volatility if semiconductor earnings disappoint.

  2. 02

    Sector concentration could draw regulatory scrutiny on market structure.

Transparency Panel

Sources cross-referenced1
Confidence score75%
Synthesized bySubstrate AI
Word count109 words
PublishedMay 18, 2026, 5:48 PM
Bias signals removed1 across 1 outlet
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