The three major stock indexes in the U.S. opened lower collectively, with the Dow Jones down 0.11%, the Nasdaq down 0.37%, and the S&P 500 index down 0.21%. JD.com rose 4%, the company announced a buyback of shares worth no more than 5 billion US dollars in the next 36 months. Ctrip rose more than 9%, with Q2 shareholders' net profit of 3.833 billion yuan, a year-on-year increase of 507.45%. Gaotu fell more than 14%, with Q2 performance turning from profit to loss on a year-on-year basis. Super Micro Computer fell more than 7%, following the short-selling report published by the institution, Hengdengbao, on the company.