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.

After plunging 17% on Monday, Nvidia climbed almost 9% as investors rushed in to buy this historic dip in shares of the top chip maker.

Nvidia, a US company known for producing the powerful chips used in AI, took the hardest hit. Its stock price dropped 17% in a single day, wiping out nearly $600 billion in market value—the largest one-day loss for any U.S. company in history.