S&P 500 futures ease from Nvidia-inspired record high

U.S. stock-index futures took a step back on Friday, easing after a powerful rally sparked by results from chipmaker Nvidia that stoked enthusiasm about a possible artificial-intelligence revolution.What’s happening Dow Jones Industrial Average futures YM00, +0.03%fell 5 points, or 0%, to 39118. S&P 500 futures ES00, +0.01%dropped 2 points, or 0%, to 5096. Nasdaq-100 futures NQ00, -0.11%decreased 27 points, or 0.2%, to 18021.On Thursday, the Dow Jones Industrial Average DJIArose 457 po