周一盘中，在线交易平台罗宾汉(Robinhood)股价大跌6.62%，主要原因是该公司未能如市场预期般被纳入标准普尔500指数。
此前，标准普尔道琼斯指数公司于上周五晚间宣布，作为季度再平衡的一部分，标普500指数的成分股将保持不变。这一消息打破了投资者对罗宾汉可能被纳入该指数的预期。事实上，近几周罗宾汉股价曾大幅上涨，上周五甚至创下了该公司2021年上市以来的最高水平，主要就是由于市场对其可能被纳入标普500指数的预期。
分析人士指出，被纳入标普500指数通常会带来被动资金的大量流入，因此未能如期入选可能导致短期内资金流出压力。此外，一些券商此前将罗宾汉视为加入该指数的"首要候选者"，这也加剧了市场的失望情绪。尽管如此，罗宾汉今年以来的股价表现依然强劲，截至上周五收盘，其市值已达661亿美元，远高于首次公开募股时的估值。
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