The Wilshire 5000-to-GDP ratio signals significant overvaluation, suggesting potential negative returns ahead for equities.
The Buffett Indicator, a gauge of total US stock market valuation relative to GDP, reached a record 232.5%, up 13% from late March. The metric, which divides the Wilshire 5000 Index by annual US GDP, is now in the “significantly overvalued” zone, per GuruFocus data dating back to 1970.
Historically, such elevated levels have preceded modest negative returns over the following year. The indicator gained prominence after Warren Buffett highlighted its utility in a 2001 Fortune article, though he noted its limitations as a standalone measure.
Despite the warning, Berkshire Hathaway has continued investing in AI-driven stocks, including a recent $10 billion commitment to Alphabet’s AI infrastructure. The divergence underscores growing concerns about equity valuations amid the AI rally.