Nvidia sales spike on AI demand

Nvidia forecast first-quarter revenue above market estimates on Wednesday, expecting strong demand for its leading AI chips to persist as businesses spend heavily to expand generative artificial intelligence infrastructure. Its shares sank roughly 1% in choppy extended trading, after closing up 3.7% in regular trading. Nvidia is the biggest beneficiary of a rally in AI-linked stocks, with its shares up more than 400% over the last two years.Because of the effort to ramp the company's flagship Blackwell AI c ...