美国合众银行（USB）股价周二在市场整体低迷中显著下滑，收盘下跌2.91%，至45.69美元。与此同时，标普500指数下跌0.40%，报6243.76点；道琼斯工业平均指数大跌0.98%，收于44023.29点，凸显市场疲软格局。
这是该股连续第三个交易日下跌，延续了近期弱势趋势。收盘价较11月27日创下的52周高点53.98美元低15.36%，凸显上行压力。
与竞争对手相比，美国合众银行表现相对落后。美国银行（BAC）股价下跌1.95%，至46.15美元；大南方银行（GSBC）下跌4.20%，收于59.02美元；富国银行（WFC）则暴跌5.48%，至78.86美元，显示出银行板块整体承压但差异明显。
交易量激增至1580万股，远超50天平均量950万股，表明市场对该股关注度升温。
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