S&P 500 Index - 90 Year Historical Chart Interactive chart of the S&P 500 stock market index since 1927. Historical data is inflation-adjusted using the headline CPI and each data point represents the month-end closing value. The current month is updated on an hourly basis with today's latest value. The current price of the S&P 500 as of September 20, 2024 is 5,702.55.