If an AI Bubble Burst Is Coming, Warren Buffett's 1999 Warning to Investors Is More Crucial Than Ever
AI stocks have put the market in a precarious position. Here's how to prepare.
Overview
Artificial intelligence (AI) stocks have skyrocketed in recent years, but that has created a double-edged sword for the broader market.
The S&P 500 (SNPINDEX: ^GSPC) and Nasdaq Composite (NASDAQINDEX: ^IXIC) have surged by around 82% and 100%, respectively, over the last three years alone, thanks in large part to the AI boom. But major indexes are becoming increasingly dominated by mega-cap tech stocks, and that concentration increases risk.
Details
The 10 largest stocks in the U.S. account for around 40% of the S&P 500, and most of those stocks are betting big on AI. Amazon, Alphabet, Microsoft, and Meta Platforms have spent a combined $303 billion on data centers just in the first half of 2026, a figure that has tripled over the last five years.
Source
Originally published at www.fool.com.
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