U.S. stock futures were swinging on Thursday following Wednesday’s declines. Futures of major benchmark indices were lower.br br A wave of disappointing earnings guidance and escalating U.S.-China trade tensions rattled investor confidence. The Donald Trump administration is considering new restrictions on exports to China that would target products either made with or containing U.S.-developed software.br br Additionally, the administration is reportedly in talks with several U.S. quantum computing companies to take ownership stakes in exchange for federal funding.