The S&P 500 refers to Standard & Poor's 500, an index of the 500 largest U.S. companies. Many people use this index as an indicator for how the U.S. economy is doing. If the S&P 500 goes up...
An index which performance generally reflects the returns of the large-company US universe. It is computed by Standard and Poor's, a division of McGraw-Hill Company. The 500 stocks are chosen by the...