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 0.11%, the Dow Jones Industrial Average up 0.04%, and the Nasdaq up 0.02%. In terms of large tech stocks, SpaceX fell 1.05%. In terms of Chinese concept stocks, Bilibili rose 3.01%, Pinduoduo fell 1.03%, Alibaba fell 1.23%, JD.com fell 1.47%, Xiaopeng Group fell 1.57%, and NIO fell 2.46%.