The Stock Market Is Triggering a Warning Seen Only Once Before, and Warren Buffett Has a Stark Warning for Investors
By newsfeedback@fool.com (Katie Brockman)
Read original article on Motley FoolThe last few years have been lucrative for the stock market, with the S&P 500 (SNPINDEX: ^GSPC), Nasdaq Composite (NASDAQINDEX: ^IXIC), and Dow Jones Industrial Average (DJINDICES: ^DJI) all notching multiple record highs in 2026.
AI stocks have fueled much of this growth. Within the S&P 500, the tech sector alone has soared by nearly 155% over the last three years. Meanwhile, all other sectors combined have earned total returns of just over 60% in that time.
Concerns about an AI bubble have been looming for years, and, for the most part, Wall Street has shrugged them off. However, the market recently signaled a new warning sign that has only been seen ahead of the dot-com bubble in the early 2000s -- and Warren Buffett has a warning for investors.
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