SPX · S&P Dow Jones Indices

S&P 500

The flagship benchmark for large-cap U.S. equities and the default reference index for broad American risk appetite.

Base currency

USD

Launch year

1957

Home market

United States Equities

Home exchange

Committee-managed benchmark

Methodology

How this benchmark is framed

Methodology text is structured data in the catalog, which makes it reusable across overview pages, compare pages, and future AI summaries.

Tracks 500 leading large-cap U.S. companies selected by a committee for market size, liquidity, profitability, and sector balance.

Sector mix

Representative sectors

Constituent examples

Representative companies

Glossary

Useful terms for reading this benchmark

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