Asset class

Stock Indexes

US equity benchmarks and the futures that trade around them nearly 24 hours a day.

Quotes

Data may be delayed; verify with the provider before relying on it.

Stock Indexes covered

Market	Tickers	Chart source	Main hours
S&P 500 The benchmark US large-cap equity index and the reference point for global risk appetite.	SPX · ES · MES	Index CFD (proxy)	Mon–Fri 9:30 a.m. – 4:00 p.m. ET
Nasdaq-100 The 100 largest non-financial companies listed on Nasdaq, heavily weighted toward technology.	NDX · NQ · MNQ	Index CFD (proxy)	Mon–Fri 9:30 a.m. – 4:00 p.m. ET
Dow Jones Industrial Average A price-weighted index of 30 large US blue-chip companies, often quoted as 'the market' in headlines.	DJIA · YM · MYM	Index CFD (proxy)	Mon–Fri 9:30 a.m. – 4:00 p.m. ET
Russell 2000 The standard US small-cap benchmark: roughly 2,000 smaller companies from the Russell 3000.	RUT · RTY · M2K	Index CFD (proxy)	Mon–Fri 9:30 a.m. – 4:00 p.m. ET

S&P 500 heatmap by sector

Data may be delayed; verify with the provider before relying on it.

About stock indexes

Stock indexes summarize the performance of a group of companies. The four major US benchmarks differ in what they hold and how they weight it: the S&P 500 and Russell 2000 are market-cap weighted, the Nasdaq-100 uses a modified cap weighting, and the Dow is price-weighted.

Most index trading happens in derivatives. CME equity index futures trade almost around the clock from Sunday evening to Friday afternoon, so they react to overnight news and economic releases before the 9:30 a.m. ET cash open.