Effective on trade date Monday, May 14, 2018, and pending all relevant CFTC regulatory review periods, this Market Regulation Advisory Notice will supersede CME Group Market Regulation Advisory Notice RA1802-5 from March 6, 2018. Effective on May 14, 2018, CME will begin to permit Basis Trade at Cash Open (“TACO”) transactions in E-mini S&P 500 futures, including TACO block trades.
Click HERE for full advisory.