31/08/2010 - EDX Margin Rate Circular
02/09/2010 - EnClear Margin Rate Circular
10/07/2009 - EquityClear Margin Rate Circular (Last updated October 2009)
31/08/2010 - NYSE Liffe Margin Rate Circular
25/08/2010 - LME Margin Rate Circular
04/08/2010 - RepoClear Margin Rate Circular
01/09/2010 - Nodal Exchange Margin Rate Circular