S&P 500 edges lower post-bell as AI chip stocks drag, broader market holds up
U.S. stocks closed a bit lower Wednesday, but after-hours action told a different story. Most S&P 500 names traded higher even as AI-linked stocks dropped. As of 17:02 EDT, the main session had wrapped and after-hours was underway. Nasdaq's regular hours run from 9:30 a.m. to 4 p.m. ET, with after-hours from 4 p.m. to 8 p.m. ET.
