• Amendments to CME Rule 855 (Offsetting Different Sized Futures Positions) Affecting Certain S&P 500 Option Contracts

      • To
      • Members, Member Firms and Market Users
      • From
      • Market Regulation Department
      • #
      • SER-7771
      • Notice Date
      • 30 November 2016
      • Effective Date
      • 15 December 2016
    • Effective Wednesday, December 14, 2016 for trade date Thursday, December 15, 2016, and pending all relevant CFTC regulatory review periods, Chicago Mercantile Exchange Inc. (“CME” or “Exchange”) will adopt amendments to Rules 855 (“Offsetting Different Sized Futures Positions”) to allow a clearing member to offset and liquidate long positions in options on E-Mini or E-Micro futures contracts (“E-Mini or E-Micro options”) against short positions in options on regular futures contracts (“regular options”) provided that such positions meet the specified criteria in CME Rule 855.

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