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.

U.S. stocks recovered some ground on Tuesday after getting hammered by fears over China's DeepSeek AI model built on a shoestring budget.

Stock markets are slowly beginning to bounce back from Monday's AI stock-driven selloff, as investors recover from their shock over the "Sputnik moment," the discovery that China has an AI startup that can build large language models much,