Assessing the Safety of Central Counterparties

We propose a general framework for empirically assessing a central counterparty's capacity to cope with severe financial stress. Using public disclosure data for global central counterparties (CCPs), we show how to estimate the probability that a CCP could cover any specified fraction of payment defaults by its members. This framework supplements conventional standards of risk management such as Cover 2, and provides a comparative and comprehensive approach to assessing risk protection across CCPs that is not predicated on a specific number of member defaults. We apply the approach to a wide range of CCPs in different geographical jurisdictions and asset classes and find that there are substantial differences in protection coverage. In particular, large European CCPs appear to be significantly safer than their counterparts in Asia-Pacific and North America. These differences are also reflected in supervisory data that provide CCP members' risk assessments of the CCPs to which they belong.