All Indexes
United States
S&P 500
Tracks roughly 500 of the largest publicly traded U.S. companies, weighted by market capitalization. Widely used as the primary benchmark for the overall U.S. stock market.
Operator
S&P Dow Jones Indices
Launched
1957
Country
United States
Methodology
Market-capitalization weighted; constituents are selected by a committee based on size, liquidity, and profitability criteria rather than a fixed mechanical rule.
Major Sectors
Technology
Healthcare
Financials
Consumer Discretionary
Industrials