Standard and Poor"s 500 Index - S&P 500 - An index consisting of 500 stocks chosen for market size, liquidity, and industry group representation. It is a market-value weighted index, with each stock"s weight in the index proportionate to its market value.
Standard and Poor"s 500 Index - S&P 500 : an index consisting of 500 stocks chosen for market size, liquidity, and industry group representation. it is a market-value weighted index, with each stock"s weight in the index proportionate to its market value.