美股开盘，道指涨0.32%，标普500指数涨0.44%，纳指涨0.56%。拼多多(PDD.O)跌10%，其三季度营收不及预期且利润环比下降22%。英伟达(NVDA.O)涨2.3%，其Q4业绩指引超平均预期而未达最高预期，被多家投行上调目标价。
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