CME: Delisting of standard-size S&P 500 futures and options
September 17
On September 17, 2021, CME will terminate the trading of standard-size S&P 500 futures and options on futures contracts, following the close of trading at 4:00pm CT. Any open positions in standard-size contracts remaining at the end of the trading day on September 17th will be converted to equivalent positions in E-mini S&P 500 futures and options.