U.S. Stock Valuations Near Dot-Com Bubble Levels with Shiller P/E at 42.18

U.S. stock valuations are nearing levels last seen during the dot-com bubble, as the Shiller P/E ratio reaches 42.18. This figure is just shy of the 44.19 peak recorded in 1999, shortly before the S&P 500 experienced a 50% crash. The current valuation raises concerns about potential market volatility reminiscent of the early 2000s downturn.