财联社7月31日电,美股三大指数收盘涨跌不一,道指跌0.38%,纳指涨0.15%,标普500指数跌0.12%,热门科技股涨跌不一,英伟达涨超2%,博通涨超1%,苹果跌超1%。贵金属、金属铜概念跌幅居前,麦克莫兰铜金跌超9%,美国黄金公司跌超7%,南方铜业跌超6%,美洲白银公司跌超5%,科尔黛伦矿业跌超4%,泛美白银跌超3%。
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