[The Three Major U.S. Stock Indexes Closed Lower, Pinduoduo Fell Over 7%] U.S. stocks closed on Tuesday, with the Dow Jones down 1.07%, the S&P 500 down 0.82%, and the Nasdaq down 1.2%. Pinduoduo fell over 7%, Nvidia dropped 2.8%, and Amazon declined 4.4%. The Nasdaq Golden Dragon China Index rose 0.4%, Alibaba gained 1.2%, and Baidu increased 2.6%.