What Is a ‘Default Waterfall’ in the Context of a CCP?
A default waterfall is a pre-defined sequence of financial resources a CCP uses to cover losses resulting from a clearing member's default. The typical order is: the defaulter's initial margin, the defaulter's contribution to the guarantee fund, the CCP's own capital, and then the non-defaulting members' contributions to the guarantee fund.
It is a strict loss-allocation hierarchy.