Inflation Adjusted S&P 500 Chart
Current Real Price: 2,662.70 -0.78 (-0.03%)
12:30 pm EST, Thu Dec 14
Mean: 496.90
Median: 249.39
Min: 66.74 (Jun 1877)
Max: 2,662.70 (Dec 2017)

Inflation adjusted, constant October 2017 dollars.