Warren Buffett Warns Investors Against Gambling Mood in AI Market

Retired Berkshire Hathaway chairman Warren Buffett warned investors that current market conditions resemble a church with a casino attached, suggesting a dangerous disconnect between stock prices and company fundamentals. He stated that it is "tough to find values when everybody is preferring gambling" and noted that while investing remains viable, prices for many assets now look "very silly."

These warnings coincide with the S&P 500's cyclically adjusted price-to-earnings (CAPE) ratio surpassing 40, a level maintained since May 2026. This valuation pattern has occurred only once before, during the dot-com bubble of the late 1990s, and was also seen during the 1929 crash. The surge is primarily driven by the tech sector, which grew nearly 155% over the last three years, far outpacing the 60% growth seen in all other sectors combined.

While generative AI has added $19 trillion in global market value, concerns have grown regarding unsustainable capital spending and high cash burn rates, specifically at companies like OpenAI. Market pressure is further compounded by Federal Reserve interest rates between 3.75% and 4% and 10-year Treasury bond yields nearing 5%. Analysts suggest these valuations increase the risk of a correction for stocks fueled by hype rather than business fundamentals.