US stock market opens: Three major US stock indices collectively open high The three major US stock indices collectively opened higher, with the S&P 500 index up 0.28%, the Dow Jones Industrial Average up 0.78%, and the Nasdaq up 0.18%. In terms of large technology stocks, Nvidia rose 2.34%, Google A fell 1.02%, and AMD fell 1.87%. In terms of Chinese concept stocks, Pinduoduo fell 1.29%, NIO fell 1.53%, Ctrip fell 2.30%, Ideal Auto fell 2.30%, NetEase fell 2.54%, Alibaba fell 3.61%, Xiaopeng Group fell 4.92%, and Bilibili fell 5.06%.