AI Stock Boom or Bubble? Tech Rally Soars as Experts Warn of Risk
Nvidia, Microsoft, Apple, Alphabet, and Amazon now account for nearly 30% of the S&P 500’s value, the highest since 1964. The S&P 500 and Nasdaq hit record highs in October, driven by AI stocks like Nvidia and Palantir, which is up about 300% this year. Analysts warn valuations are stretched, with Palantir trading at over 100× sales and Nvidia at over 300× earnings. Some experts fear an AI-driven bust could erase trillions in U.S. wealth.