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NYSE / CBOE
United StatesSPX
S&P 500
Region
United States
Exchange
Ticker
SPX
About S&P 500
The Standard & Poor's 500 is a market-capitalisation-weighted index of 500 leading publicly traded companies in the United States. Regarded as the best single gauge of US large-cap equities, the S&P 500 covers approximately 80% of available US market capitalisation and is widely used as a benchmark by institutional investors worldwide.
S&P 500 Price Chart
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Components
500 large-cap US companies selected by a committee based on market cap, liquidity, sector representation, and financial viability. Notable constituents include Apple, Microsoft, Amazon, Nvidia, and Alphabet.
Trading Hours
Regular session: 09:30–16:00 ET (Mon–Fri). Extended-hours futures trade nearly 24/5 via E-mini S&P 500 (ES) on CME Globex.
Fact Sheet
Launched in 1957 by Standard & Poor's. Weighted by free-float market capitalisation. Rebalanced quarterly. Maintained by S&P Dow Jones Indices.
More United States Indices
S&P MidCap 400
MID · NYSE / NASDAQThe S&P MidCap 400 covers mid-sized US companies that sit below the S&P 500 but above the S&P 600 Small Cap index. Mid-cap stocks often offer a balance of growth potential and stability, making this index important for diversified portfolio construction.
CBOE Volatility Index
VIX · CBOEThe VIX, often called the 'fear gauge', measures the market's expectation of 30-day forward-looking volatility implied from S&P 500 options prices. It is not a traditional stock index but rather a real-time sentiment indicator used by traders to gauge market fear and complacency.
Russell 2000
RUT · NYSE / NASDAQThe Russell 2000 Index measures the performance of approximately 2,000 smallest companies in the Russell 3000 Index. It is the most widely followed benchmark for US small-cap stocks and is closely watched as a gauge of the domestic economy since small-caps tend to be more domestically focused.
Dow Jones Industrial Average
DJI · NYSEThe Dow Jones Industrial Average (DJIA) is one of the oldest and most recognised stock market indices in the world. It tracks 30 large, publicly owned blue-chip companies trading on the NYSE and NASDAQ. Despite its small constituent count, the Dow remains a cultural touchstone for the overall health of the US stock market.