U.S. stock futures are lower as investors waited for artificial intelligence chip darling Nvidia's earnings after the bell.

The S&P 500 is now about 4% off its record closing high reached on February 19, having plunged as much as 18.9% below that level in the wake of Trump's erratic tariff announcements that have whipsawed markets for much of his second term.

US stock futures are slightly up ahead of Nvidia Corp.’s earnings as investors waited to gauge the impact of the trade war and outlook for artificial intelligence.