The S&P 500, or Standard & Poor’s 500, is a stock market index tracking 500 large-cap U.S. companies, reflecting the nation’s economic health.
Managed by S&P Dow Jones Indices, it spans sectors like technology, healthcare, finance, and consumer goods, chosen based on market capitalization, liquidity, and stability. Its value is weighted by market capitalization, giving greater influence to higher-valued companies.
Widely seen as a barometer for the entire U.S. stock market, the S&P 500 is used by investors to assess portfolio performance and make investment decisions. It also serves as a basis for various financial products, including index funds and ETFs, which mimic its performance.
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