DeepSeek, a Chinese artificial intelligence (AI) start-up, is sending shock waves through the U.S. tech sector by demonstrating its latest AI assistant, which achieves performance comparable to or even surpassing some of the world's best chatbots.

Artificial intelligence stocks got a major shake-up when Nvidia (NVDA), the leader in AI chips, notched their largest single-day plunge since 2020. On Jan. 27, Nvidia shares dropped by 17%, wiping out an astonishing $589 billion from Nvidia’s market capitalization.