(abbreviation: S & P 500)
- A group of 500 companies whose average daily share prices are used to calculate an index of the day’s security prices.More example sentences
- One in four shares in the Standard & Poor's 500 index was at a 12-month low.
- It's a measure of risk, primarily the sensitivity of a company's stock price to an overall fluctuation in an index like the Standard & Poor's 500.
- The Standard & Poor's 500 - stock index has plunged 45% since its March 2000 high.