8月20日，美股三大股指期货盘前走势不一，截至发稿，道指期货跌0.05%，纳指期货升0.07%，标普500指数期货升0.38%。
存储芯片股普涨， SK海力士涨超4%， 闪迪涨超3%， 西部数据涨约 2%，美光科技涨约 2%，希捷科技涨约 2%。
加密货币概念股走强， BitMine.涨近7%， SharpLink Gaming涨超5%， Strategy涨超4%， Coinbase Global, Inc.、 Circle Internet Corp.、 Robinhood涨超3%；
Moderna, Inc.跌超11%，该股隔夜暴涨近180%，该公司黑色素瘤mRNA疫苗三期试验成功；
Nordson Corporation涨近7%，第三财季业绩超预期，上调全年业绩指引；
Wolfspeed Inc.跌超9%，Q4亏损及营收均逊于预期，Q1业绩指引疲软。
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