路透社3月7日 - DoorDashDASH.O、Williams-SonomaWSM.N、Expand EnergyEXE.O和TKO GroupTKO.N宣布将加入标准普尔500指数（S&P 500）.SPX，这四家公司的股价在周五的延长交易中上涨。
标准普尔道琼斯指数公司（S&P Dow Jones Indices）在一份新闻稿中说，这四家公司将在3月24日星期一交易开始前加入华尔街最受关注的股票基准。
DoorDash大涨7.5%，Williams-Sonoma上涨2.4%，Expand Energy EXE.O上涨1.5%，TKO Group TKO.N上涨2.6%。
它们将取代 Borgwarner Inc BWA.N、Teleflex Inc TFX.N、Celanese Corp CE.N和 FMC Corp FMC.N。
跟踪标准普尔500指数的指数基金是美国股市最受欢迎的投资工具之一，这些基金将不得不购买新加入公司的股票，以便与基准的构成保持一致。
(为便利非英文母语者，路透将其报导自动化翻译为数种其他语言。由于自动化翻译可能有误，或未能包含所需语境，路透不保证自动化翻译文本的准确性，仅是为了便利读者而提供自动化翻译。对于因为使用自动化翻译功能而造成的任何损害或损失，路透不承担任何责任。)
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