NEW YORK: US stocks ended higher on Tuesday (Jan 28), with Nvidia and other artificial intelligence-linked technology shares recovering from sharp losses the previous day as investors snapped up bargains. The Nasdaq led gains and AI chip leader Nvidia gave the index its biggest boost, a day after Nvidia's 17 per cent drop erased about US$593 billion from its market value in the biggest single-session loss for any company. The S&P 500 technology sector rose the most of any S&P 500 sector, while