8月21日，道指期货涨0.06%，标普500期货涨0.08%，纳指期货涨0.05%，夜盘情绪偏多。
罗斯百货涨超8%，Q2业绩超预期，并上调2026财年业绩展望；
OSI Systems跌近14%，Q4业绩符合预期，但业绩指引令投资者失望；
Moderna续跌逾3%，隔夜收盘跌23.5%。
8月21日，道指期货涨0.06%，标普500期货涨0.08%，纳指期货涨0.05%，夜盘情绪偏多。
罗斯百货涨超8%，Q2业绩超预期，并上调2026财年业绩展望；
OSI Systems跌近14%，Q4业绩符合预期，但业绩指引令投资者失望；
Moderna续跌逾3%，隔夜收盘跌23.5%。
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