美国银行（BAC）股价在周五盘前大幅下跌5.13%，延续了周四的跌势。这一跌势不仅限于美国银行，整个银行板块都受到了显著影响。
造成银行股普遍下跌的主要原因是美国总统特朗普宣布的新关税政策。特朗普表示将对所有进口到美国的商品征收10%的基准关税，并对其他数十个国家征收更高的关税。这一消息引发了市场对全球经济增长放缓的担忧。此外，中国宣布将从4月10日起对所有美国商品征收34%的额外关税作为回应，进一步加剧了市场的紧张情绪。
投资者对经济前景的担忧导致他们预期各国央行可能会采取降息措施。然而，利率下调将削弱银行的贷款利润。摩根大通的分析师将今年美国和全球经济衰退的风险从之前的40%上调至60%。这些因素共同导致了银行股的大幅下跌。除美国银行外，其他大型银行如摩根大通、花旗集团、富国银行等也在盘前出现明显跌幅。随着大型银行即将在下周开始公布季度业绩，投资者将密切关注银行业的表现及其对整体经济状况的影响。
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