美国铝业（AA）今日盘前股价大跌5.03%，引发市场关注。这一跌幅可能与最新公布的日本第四季度铝溢价有关。
据消息人士透露，日本买家已同意支付每吨86美元的铝溢价，用于10月至12月的船运。这一数字比第三季度下降了20%，反映出亚洲地区铝需求的持续疲软。日本作为亚洲主要的铝进口国，其溢价水平通常被视为该地区铝市场的晴雨表。
分析人士指出，日本铝溢价的大幅下降可能对全球铝价格产生负面影响，进而影响到包括美国铝业在内的主要铝生产商的盈利预期。此外，消息还显示，日本国内需求低迷，特别是建筑材料领域，同时高库存也给价格带来压力。这些因素共同暗示了全球铝市场可能面临的需求疲软，这无疑会对美国铝业的业务前景造成影响，从而导致其股价在盘前交易中出现明显下跌。
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