在贸易关税与供应链困局的双重夹击下，美国军工巨头诺斯罗普-格鲁曼（Northrop Grumman）最新财报显示，其第一财季净利润同比暴跌49%，主要归咎于B-21隐形轰炸机项目的成本超支。

　　这一“暴雷”数据直接触发股价重挫约12%，市值蒸发超百亿美元。

　　财务数据显示其第一财季业绩雪崩：营收同比下降7%至94.7亿美元（低于分析师预期的99.2亿美元）。净利润从去年同期的9.44亿美元骤降至4.81亿美元。每股收益3.32美元，较去年同期的6.32美元近乎腰斩。

　　诺斯罗普格鲁曼的B-21项目成了拖累其业绩的罪魁祸首。这款可搭载核武器的战略轰炸机单季度造成4.77亿美元成本超支。随着量产加速，原材料价格飙升与供应链中断持续推高制造成本。

　　尽管公司维持全年营收预期，但国际局势正暗藏危机：欧盟启动“2030自主防务计划”、多国因美国关税政策重新评估军购订单，都可能挤压这家军工巨头的海外市场空间。分析师警告，若特朗普政府进一步提高进口钢材关税，B-21项目的利润率还将承压。

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