Shares of Nvidia (NASDAQ: NVDA) spiked Tuesday. The company's stock gained 8.9% as of market close. The move up comes as the S&P 500 and Nasdaq Composite gained 0.9% and 2%, respectively. Nvidia's stock felt some relief after a major sell-off on Monday that was spurred by a new AI entrant,

Rebounding tech stocks drove U.S. indexes higher Tuesday, a day after they tumbled on doubts about whether the artificial-intelligence frenzy really needs all the dollars being poured into it. The S&P 500 climbed 0.