达美航空（Delta Air Lines，股票代码：DAL）今日盘中股价大跌5.24%，引发市场关注。
消息面上，投资银行杰富瑞（Jefferies）下调了达美航空的股票评级，这一举动似乎是导致股价下跌的主要原因。杰富瑞将达美航空的评级从"买入"下调至"持有"，同时大幅下调了目标价，从此前的85美元降至46美元，降幅接近46%。
分析人士认为，杰富瑞的这一评级调整反映了对达美航空未来业绩增长的担忧。目标价的大幅下调可能暗示航空业可能面临更多挑战。投资者对此反应强烈，导致达美航空股价出现明显下跌。后市走势还需进一步观察，投资者应密切关注行业动态和公司基本面变化。
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