S&P 500
S&P 500 is a stock market index tracking the stock performance of 500 leading companies listed on stock exchanges in the United States. It is one of the most... Wikipedia
- Foundation: March 4, 1957
- Operator: S&P Dow Jones Indices
- Exchanges: NYSE, Nasdaq, Cboe BZX Exchange
- Constituents: 503
- Type: Large-cap
- Market cap: US$61.0 trillion, (as of October 31, 2025)
- Weighting method: Free-float capitalization-weighted
- Related indices: S&P 1500, S&P Global 1200, S&P 100
- Website: spglobal.com/sp-500
- Data source: DuckDuckGo