US stocks today: S&P 500 ends down as AI worries hit chipmakers
The S&P 500 ended lower on Tuesday, weighed down by losses in Micron Technology and other chipmakers due to mounting doubts about the sustainability of Wall Street's AI-driven rally. Chip stocks in Asia and the United States dropped after memory chip giant Samsung Electronics' blowout earnings report failed to satisfy investors with sky-high expectations.Micron and Sandisk both fell, pulling the PHLX chip index lower. Adding to worries about high-flying chipmakers, Reuters reported that…



