Veteran investor Jeremy Grantham warned that the U.S. stock market is at its most expensive valuation in history.

Jeremy Grantham says soaring valuations around AI makes the U.S. stock market historically expensive.

Jeremy Grantham warns the US stock market is the most expensive in history with a 235% Buffett Indicator, saying AI stocks risk declines of up to 70%.

Veteran investor Jeremy Grantham warned that the U.S. stock market is at its most expensive valuation in history.