Shiller PE Ratio
The cyclically adjusted price-to-earnings ratio, commonly known as CAPE, Shiller P/E, or P/E 10 ratio, is a valuation measure usually applied to the US S&P 500 equity market. It is defined as price divided by the average of ten years of earnings (moving average), adjusted for inflation.
Market Cap to GDP ratio aka buffet indicator is a long-term valuation indicator. It is a good valuation indicator. The basis for the belief that market capitalisation should match the GDP is that the stock market is considered to be a good barometer of the economy.
A history-making rally: At 294%, the bull market since 2009 is one of the strongest & longest on record.