That’s the big question on the minds of investors Monday, given the newfound attention on DeepSeek, a Chinese AI app that has climbed to the top of downloads from Apple’s U.S. App Store. The service has become so popular that it’s restricting registration due to what it called “large-scale malicious attacks.

In a matter of days, DeepSeek proved to be so popular as to climb to the top of Apple's App Store, surpassing OpenAI's ChatGPT as the most downloaded app. But for owners of Nvidia stock, and stock traders in general, DeepSeek is on track of becoming a black swan — an unexpected event with extreme consequences.