Wall St futures flat as Nvidia earnings, Fed signals loom

U.S. stock futures were flat Monday evening after a mixed session, as investors awaited Nvidia's earnings and new U.S. sanctions on Iran. S&P 500 futures held at 7,669.25 points, while Nasdaq 100 futures dipped 0.1%. The Dow rose 0.3% in regular trading, but the S&P 500 fell 0.3% and the Nasdaq dropped 0.8%, dragged by a 2.9% decline in Nvidia shares and weakness in other chipmakers. Treasury Secretary Scott Bessent warned of secondary sanctions against countries doing business with Tehran, while oil prices fell below $92 a barrel. Nvidia reports fiscal second-quarter results Wednesday, with investors watching for signs that AI infrastructure spending remains justified. July inflation data, the Jackson Hole symposium starting Thursday, and Fed Chair Kevin Warsh's Friday speech will also shape market direction this week.