tsill (Chief Risk Officer, CME Group), Michael C. Bodson (President & CEO, DTCC), John Horkan (Head of North America and Global COO, Rates & FX, LCH, LSE Group) and Marcus Denne (Director, Global Clearing, BofA Merrill Lynch). « With the start of the Uncleared Margin Rule (UMR) on September 1st, we asked in