On March 19tht hree major US stock indexes ended a two-day winning streak on Tuesday, with the Nasdaq falling 1.71%, the S&P 500 dropping 1.06%, and the Dow Jones falling 0.62%. Technology stocks led the decline, with Tesla plummeting 5.34% due to increased competition, and Nvidia's GTC conference new products failing to boost stock prices, leading to a 3.35% decline.