联合健康集团（UnitedHealth Group，股票代码：UNH）今日盘中股价大跌5.02%，引发市场关注。尽管没有直接关于联合健康的重大新闻，但行业竞争对手CVS Health的财报表现以及整个医疗保险行业面临的挑战，可能是导致股价下跌的主要原因。
CVS Health今日公布了超出市场预期的第二季度业绩，并上调了全年盈利预期。然而，CVS Health及其他保险公司，包括Elevance和Centene，都提到了第二季度医疗成本高于预期的问题。这一行业趋势可能引发了投资者对联合健康面临类似挑战的担忧。
医疗保险行业正面临多重压力。一方面，患者病情加重导致医疗成本上升；另一方面，政府对医疗保险优势计划（Medicare Advantage）的支付政策变化也在挤压保险公司的利润空间。美国医疗保险和医疗补助服务中心（CMS）改变了对重症患者报销计划的计算方法，这对包括联合健康在内的保险公司造成了显著影响。
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