U.S. stock futures climbed Tuesday after President Trump said his aides would cooperate with President-elect Joe Biden’s transition to the White House, easing investors’ concerns about a drawn-out period of uncertainty.

Futures tied to the S&P 500 rose 0.8%, pointing to a second day of gains in U.S. stocks after the opening bell. Contracts linked to the tech-heavy Nasdaq-100 index edged up 0.4%.

Investors are cheering signs that a protracted fight over control of the White House is potentially drawing to a close, reducing political risks over the winter months. The General Services Administration chief said Monday that her agency would provide Mr. Biden federal resources meant to assist in a smooth transfer of power. Mr. Trump also said he has instructed aides to help with the transition.