01/02/2010 - Delisting of Fixed Income Derivatives contracts
23/02/2010 - EnClear Margin Rate Circular
10/07/2009 - EquityClear Margin Rate Circular (Last updated October 2009)
12/03/2010 - LIFFE Margin Rate Circular
04/03/2010 - LME Margin Rate Circular
10/03/2010 - RepoClear Margin Rate Circular
02/02/2010 - Nodal Exchange Margin Rate Circular