Among the biggest drags was Micron Technology, whose shares fell 5.5%. The memory-chip maker has been one of Wall Street's biggest winners this year, with its stock roughly quadrupling as AI-driven demand boosted sales.The S&P 500 fell 0.6%, while the tech-heavy Nasdaq Composite dropped 1% as of 9:35 am Eastern Time. The Dow Jones Industrial Average was down 223 points, or 0.4%, AP reported.The weakness followed a broad selloff across Asian markets, where AI-related stocks led declines. Japan's Nikkei 225 t ...