25/06/2009 - EDX Margin Rate Circular
30/06/2009 - EnClear Margin Rate Circular
08/04/2009 - EquityClear Margin Rate Circular (Last updated May 2009)
01/07/2009 - LIFFE Margin Rate Circular
05/06/2009 - LME Margin Rate Circular
28/05/2009 - RepoClear Margin Rate Circular
02/04/2009 - Nodal Exchange Margin Rate Circular