Is the stock market in an AI bubble? A recent warning sign suggests yes (opens in new tab)

Are we in an One thing that’s got market watchers worried: While the S&P 500 closed out May on a record high (largely driven by semiconductors), only a few of those 500 companies—just 20 to be exact—hit their own all-time highs. That’s a similar pattern that occurred during the dot-com internet bubble, CNBC. As the stock market rises and shares of tech stocks hit historic, valuations, there’s no arguing that the , including the so-called (Alphabet, Amazon, Apple, Meta Platforms, Microsoft, Nv...