Shares in two closely watched AI-adjacent companies, Nvidia Corporation and Palantir Technologies, are falling this morning. Currently, Nvidia shares are down more than 2.2% and Palantir shares are down more than 6%.

The share price drops of two of the most prominent AI companies come as investors seem increasingly worried that the AI boom is starting to look more like an AI bubble, reminiscent of the dotcom bubble of the late ’90s and early 2000s.

In part due to these concerns, an increasing number of investors have recently begun betting against the stocks of companies benefitting from the artificial intelligence boom—including Michael Burry, the investor who became famous for betting against the housing market before the 2008 financial crash. Here’s what you need to know.

“Big Short”

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