Please be advised that effective Monday August 4, 2014, CME Clearing will remove the Exchange-For-Swap (EFS) identifier for all NYMEX, COMEX and DME exchange futures executed in accordance with CME Rule 538 (“Exchange for Related Positions”). CME products were removed from EFS eligibility in October of 2010, and CBT products were removed from EFS eligibility in July of 2012. With this final transition, EFS will no longer be a supported transaction type at CME.
CME Group is the world's leading and most diverse 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.