• REVISED - Product Modification Summary: Amendments to Contrary Exercise Instructions and At-the-Money (ATM) Instructions for Certain COMEX Metals Option Contracts

      • To
      • Clearing Member Firms; Back Office Managers
      • From
      • CME Clearing
      • #
      • 17-298 Revised
      • Notice Date
      • 10 August 2017
      • Effective Date
      • 01 January 2018
    • Amendments to COMEX Rules to Eliminate Contrary Exercise Instructions and Amend At-the-Money Instructions for Certain COMEX Metals Option Contracts

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      17-298 Revised