美东时间11月24日盘后，标普道琼斯指数官网发布公告，对标普 500 指数、标普小盘股 600 指数作出如下调整：
SanDisk Corp将取代埃培智纳入标普 500 指数，PTC Therapeutics 将取代SanDisk纳入标普小盘股 600 指数，上述调整将于 11 月 28 日（周五）开盘前生效。
Upwork将取代Premier纳入标普小盘股600指数，调整将于 11 月 28 日（周五）开盘前生效。Patient Square 资本正在收购 Premier 公司，该交易有待最终交割条件满足，预计于 11 月 25 日完成。
First Interstate BancSystem 将取代 哈尼斯品牌服装 纳入标普小盘股 600 指数，调整将于 12 月 2 日（周二）开盘前生效。 吉登运动服正在收购 哈尼斯品牌服装，该交易有待最终交割条件满足，预计于 12 月 1 日完成。
消息公布后，Sandisk股价盘后涨近8%，PTC Therapeutics股价盘后涨超5%。
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