US stock market today: S&P 500, Nasdaq futures edge lower as chip stocks retreat; crude oil prices rise

US stock futures pointed to a weak start with S&P 500 down 0.2 percent and Nasdaq futures down 0.8 percent as AI-related chip stocks retreated following Samsung Electronics' 7.5 percent tumble in Seoul, despite a 19-fold jump in quarterly profit, dragging down peers like Micron (down 4.6 percent), Intel (down 3.6 percent), and SK Hynix (down 6 percent). Crude oil prices rose with Brent climbing above 72 dollars a barrel amid reports of fresh attacks near the Strait of Hormuz involving a Qatari LNG tanker and a Saudi-flagged crude tanker. Investor focus also shifted to the upcoming Fed policy meeting minutes and the start of the US earnings season, with Delta Air Lines and PepsiCo scheduled to report.