The cyclically adjusted price-to-earnings (CAPE) ratio is a valuation metric typically used to gauge whether entire stock market indexes are overvalued or undervalued. It was developed by Nobel-winning economist Robert Shiller during the dot-com bubble, so it is sometimes referred to as the Shiller P/E ratio.

Berkshire Hathaway didn’t just report earnings this quarter; it sent a clear message. In Q2 2025, Warren Buffett’s timeless investment firm posted $12.37 billion in net earnings to shareholders, down sharply from $30.3 billion in the year-ago period.