cation Submissions: Swap Execution Facility") Derivatives Clearing Ore LedgerX Exchange Approved. CFTC Asserts Jurisdiction Sep 2014 Sep 2015 — CFTC Enforcement Action against Derivabit, Sep 17, 2015 (1) A Swap Execution Facility ("SEF") is a derivatives trading platform designation under the CFTC. A SEF license en