US markets today: Stocks rise led by Nvidia and AI gains; volatility keeps investors cautious

Tech stocks led gains after Taiwan Semiconductor Manufacturing Co. (TSMC) reported a larger-than-expected profit for the latest quarter. CFO Wendell Huang said the company anticipates “continued strong demand for our leading-edge process technologies” through the end of the year. TSMC, a key chipmaker for AI companies including Nvidia, saw its Taiwan-listed shares climb 1.4%, while its US-listed stock slipped 0.2%.Nvidia rose 1.3%, emerging as the top contributor to the S&P 500 rally, reflecting its positio ...