Index
A single number representing all or part of the market. e.g., the S&P 500.
In detail
An index combines many stock prices into one figure that shows the state of the market. The S&P 500 represents 500 large U.S. stocks; the Nasdaq-100, 100 tech names. 'The market rose' usually means one of these indices rose.
How to see it in TICKR
On any stock page you can see this concept with real data — charts and SEC-filing fundamentals. Hovering dotted-underlined terms in the app reveals explainer tooltips.
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Explore the demo →General educational information — not investment advice or a solicitation to trade.