It is one of the most commonly followed equity indices.
The Standard and Poor's 500, or simply the S&P 500, is a stock market index tracking the stock performance of 500 of the largest companies listed on stock exchanges in the United States. A linear chart of the S&P 500 daily closing values from January 3, 1950, to FebruA logarithmic chart of the S&P 500 index daily closing values from January 3, 1950, to FebruA daily volume chart of the S&P 500 index from January 3, 1950, to FebruLogarithmic graphs of S&P 500 index with and without inflation and with best fit lines
