• Disruptive Practices Prohibited

      • To
      • Members, Member Firms and Market Users
      • From
      • Market Regulation Department
      • #
      • CME Group RA1904-5
      • Notice Date
      • 11 April 2019
      • Effective Date
      • 25 April 2019

    • Effective on trade date Thursday, April 25, 2019, and pending all relevant CFTC regulatory review periods, this Market Regulation Advisory Notice will supersede CME Group Market Regulation Advisory Notice RA1807-5 from June 26, 2018.  It is being issued to eliminate references in the FAQ and Examples sections of this Advisory Notice concerning activity during the CME Globex pre-open period and replace them with a reference to the newly issued and more comprehensive CME Group Market Regulation Advisory Notice on order entry during the CME Globex electronic trading platform (“Globex”) pre-open period.

      Click HERE to view the full advisory.

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.

© 2026 CME Group Inc. All rights reserved.