U.S. stock futures were mostly rising early Tuesday after Nvidia said it would restart some chip sales to China, as investors look ahead to a raft of bank earnings and key inflation data on a busy day for markets. Futures on the Dow Jones Industrial Average slipped 51 points, or 0.1%, while S&P 500 futures rose 0.3% and Nasdaq 100 futures jumped 0.6%. Trump suggested he would impose 100% tariffs on goods from Russia if a peace deal with Ukraine isn’t reached in 50 days.