Nvidia reported excellent fourth-quarter financial results, beating expectations on the top and bottom lines. Revenue increased 78% to $39.3 billion on particularly strong growth in data center sales, and non-GAAP net income increased 71% to $0.89 per diluted share. The company also provided first-quarter guidance that exceeded estimates.

Nvidia reported its fourth-quarter results after Wednesday's closing bell. Investors and analysts have focused on early sales of the company's new Blackwell line.

U.S. stock indexes fell sharply Thursday as Wall Street’s frenzy around artificial-intelligence technology faltered some more. The S&P 500 sank 1.6% for its fifth drop in six days after setting an all-time high last week.