Please enable JavaScript to view the chart.
Current Shiller PE Ratio: 28.39 -0.02 (-0.07%)
11:59 AM EDT, Tue Mar 28
Mean: 17.01
Median: 15.91
Min: 4.78 (Dec 1920)
Max: 44.19 (Dec 1999)

Shiller PE ratio for the S&P 500.

Price earnings ratio is based on average inflation-adjusted earnings from the previous 10 years, known as the Cyclically Adjusted PE Ratio (CAPE Ratio), Shiller PE Ratio, or PE 10 — FAQ.

Data courtesy of Robert Shiller from his book, Irrational Exuberance.