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S&P 500 Companies By Weight: Live Performance & Distribution Metrics

The S&P 500 ETF (SPY) is the premier index fund tracking the 500 largest publicly traded companies in the United States. As the world's most prominent equity benchmark, the S&P 500 serves as a foundational indicator of US economic health and is widely regarded as the definitive measure of large-cap American stock market performance.

Weighted % of S&P 500 vs. Today's Valuation Changes

Entire S&P 500 Average+0.467%
Top 10 Largest Companies Average-0.065%
# of Gainers294
# of Decliners209

Top Gainers & Decliners

Top Five S&P 500 Companies With Largest Gains & Losses in Valuation

Industry Breakdown vs. Today's Valuation Changes

S&P 500 Companies Industry Distribution vs. Daily Average Valuation % Change

Top Daily Industry Gainers

  • Energy

    +2.09%

  • Materials

    +1.51%

  • Healthcare

    +1.46%

Top Daily Industry Decliners

  • Utilities

    -1.37%

  • Communication Services

    -0.25%

  • Financial Services

    -0.04%

Cumulative Weight Distribution of S&P 500

Power Distribution: The Domination of The S&P 500's Top Holdings

Latest Index Additions & Removals

Effective Date: May 19, 2025

Additions