Inflation Adjusted S&P 500 Chart
Current Real Price: 2,353.34 +7.38 (0.31%)
11:49 am EDT, Fri Mar 24
Mean: 479.12
Median: 244.72
Min: 65.70 (Jun 1877)
Max: 2,353.34 (Mar 2017)

Inflation adjusted, constant January 2017 dollars.