Regulators approved about 10 Chinese companies to purchase Nvidia's second-most powerful AI chip, the H200, marking a significant easing of export restrictions and opening a major growth avenue in China’s AI market.

Nvidia shares climbed 1.9% in premarket trading, driving its market valuation to $5.9 trillion and lifting S&P 500 and Nasdaq futures to all-time highs as investors weighed strong tech momentum against geopolitical and economic uncertainties.