
US stock futures drop, Nvidia tumbles on new curbs on chip exports to China
(Reuters) -Wall Street index futures dropped on Wednesday and chip darling Nvidia slumped after the company flagged steep charges from new U.S. curbs on chip exports to China, fuelling worries about the fallout of an escalating trade war. The U.S. Commerce Department late Tuesday issued new export licensing requirements for Nvidia’s H20, and AMD’s MI308…