The following is a scatterplot of Buffett Yardstick using historical data downloaded from St. Louis Fed.
Buffett called the Yardstick the best single measure of where valuations stand at any given moment. The Buffett Yardstick = total U.S. stock market capitalization as a percentage of GDP, is immune to company-level accounting issues, although it is not perfect.
The plot is produced by R, and will be updated on a quarterly basis.
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