美股收盘：道指跌1.9% 小鹏汽车涨13%

Market Overview - The Dow Jones Industrial Average closed down by 1.9% [1] - The S&P 500 index fell by 1.6% [1] - The Nasdaq Composite index decreased by 1.4% [1] Company Performance - Tesla (TSLA.O) and Apple (AAPL.O) both dropped over 2% [1] - Nvidia (NVDA.O) declined by 1.9% [1] - UnitedHealth (UNH.N) saw a significant drop of over 5.5% [1] - Xpeng Motors (XPEV.N) experienced a notable increase of 13% [1] Chinese Stocks - The Nasdaq Golden Dragon China Index fell by 0.7% [1] - Alibaba (BABA.N) decreased by 1.2% [1]