Definitions for "S&P 500"
A composite of 500 widely held stocks used to measure the ups and downs of the stock market as a whole. The percentage returns of equity mutual funds are often compared to the performance of the S&P 500. Standard & Poor's selects the 500 stocks, which are meant to represent leading companies in leading industries.
A capitalization weighted index of 500 stocks. Standard and Poor's 500 index represents the price trend movements of the major common stock of U.S. public companies. It is used to measure the performance of the entire U.S. domestic stock market.
An unmanaged group of stocks often considered representative of the stock market in general. This index is composed of 400 industrial, 20 transportation, 40 utility, and 40 financial companies.