US stock futures slipped on Thursday after Nvidia declined following its latest earnings report. The chipmaker fell about 3% in extended trading despite beating second-quarter earnings and revenue forecasts, as data center sales once again came in below expectations. Nvidia also revealed that it recorded no sales of its H20 chips to China during the quarter and excluded any potential shipments from its guidance. The weakness spread across the semiconductor sector, with AMD (-1.4%), Broadcom (-1.1%) and TSMC (-1.6%) also retreating. Still, analysts stressed that the artificial intelligence rally remains intact and suggested investors view the dip as a buying opportunity. In regular trading on Wednesday, major indexes advanced, with the Dow up 0.32%, the Nasdaq Composite gaining 0.21% and the S&P 500 adding 0.24% to close at a fresh record high.