Shiller PE Ratio

The Shiller PE Ratio, often referred to as the Cyclically Adjusted Price-to-Earnings (CAPE) ratio, is a world-renowned valuation metric developed by Nobel Prime-winning economist Robert Shiller.

Unlike standard PE ratios that can be skewed by temporary earnings fluctuations, the Shiller PE utilizes inflation-adjusted earnings data from the past ten years to provide a smoothed "cyclically adjusted" view of market value.

This tool is essential for long-term investors looking to identify historic bubbles, generational buying opportunities, and major regime shifts by quantifying exactly how far the market has stretched from its long-term historical mean.