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S&P 500 Posts 2.9% Daily Gain, Adding $1.7 Trillion in Market Value

The benchmark U.S. stock index recorded its biggest one-day rise since May 2025, according to the source.

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Terms & Concepts
  • Market capitalization: The total value of a company’s outstanding shares, or in an index context, the combined equity value added or lost across its constituents.
  • S&P 500: A benchmark U.S. stock index that tracks 500 large listed companies and is widely used to measure overall equity market performance.