What is the Shiller PE ratio for the S&P 500?

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.

What is the PE ratio of the S&P 500?

The PE ratio of the S&P 500 divides the index (current market price) by the reported earnings of the trailing twelve months. In 2009 when earnings fell close to zero the ratio got out of whack, resulting in an inaccurate reflection of the market's true valuation.

What is a CAPE ratio?

The CAPE ratio adjusts the regular P/E ratio by accounting for inflation and seasonal factors over the past 10 years, providing a more accurate assessment of stock valuation s. Note: Historical values are based on data provide by Dr. Shiller. MM estimates recent data not yet provided by Dr. Shiller using the same method he proposed.