8月18日，美国铝业盘中下跌5.4%，报48.92美元/股，成交额3935.01万美元。
消息面上，美国商务部对407种钢铝产品加征关税，预计将使美国铝业新增约1.15亿美元成本负担，引发市场对公司盈利能力的担忧。铝行业板块同步走弱，凯撒铝业跌15.18%，Constellium跌6.72%，世纪铝业跌5.86%，行业整体承压明显。此前公司已面临以56亿美元收购South32铝资产带来的债务与整合压力，叠加二季度业绩略低于预期，关税冲击进一步加剧了短期抛压。
（以上内容均基于市场公开消息，由程序或算法智能生成，仅作为股价异动提醒，不作为投资建议或交易依据。）
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