U.S. stock index · United States

S&P 500 (SPX)

500 of the largest companies listed in the United States.

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About S&P 500

The S&P 500 tracks about 500 large companies listed on U.S. exchanges, weighted by market value. Calculated by S&P Dow Jones Indices, it is widely seen as the best single gauge of the U.S. stock market.

Because the largest companies carry the most weight, moves in big tech stocks tend to have an outsized effect on the index.

Symbol
SPX
Type
U.S. stock index
Market
United States
Unit
points

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