8月21日，美股三大股指期货涨跌不一，截止发稿，道指期货跌0.13%，纳指期货涨0.06%，标普500指数期货跌0.02%。
部分美股AI应用软件股盘前走强，SoundHound AI涨超4%，Palantir涨超2%；
部分核电概念股盘前上涨， Oklo Inc、NuScale Power、NANO Nuclear Energy Inc均涨超3%；
蔚来盘前涨超3%，将于今晚举办全新ES8产品技术发布会；
禾赛盘前涨超2%，计划通过港股上市，募集约3亿美元资金（IFR）；
加拿大钾肥巨头Brazil Potash盘前涨超36%，公司签下长达10年的钾肥销售大单;
美容股科蒂盘前跌超20%，第四财季收入下降。
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