U.S. stock futures steadied, the dollar ticked higher and tech stocks in Asia slid in jittery trade on Tuesday, as advances by a Chinese AI startup have cast doubt on U.S. dominance and spending in one of the market's hottest sectors.

Stock index futures gained on Tuesday, as Wall Street hopes for a recovery after Monday's tech-led selloff fueled by China's DeepSeek app. S&P 500 futures (SPX) +0.3%, Nasdaq 100 futures (US100:IND) +0.

The success of a mysterious Chinese lab has investors questioning the AI spending boom that has swept through Silicon Valley.

Technology stocks regained ground on Tuesday, a day after a low-cost Chinese AI model rattled markets, while traders rotated back into the dollar from safe-haven currencies. The tech rebound boosted Wall Street's main stock indices,

Technology stocks plunged Monday after China’s DeepSeek announced it had trained a sophisticated AI model at a fraction of the cost of Silicon Valley firms, sparking a sharp reversal in the AI rally.