The standardised approach for measuring counterparty credit risk exposures
The Committee's objective in undertaking this work was to develop a risk sensitive methodology that appropriately differentiates between margined and unmargined trades, and provides more meaningful recognition of netting benefits than either of the existing non-modelled approaches. The SA-CCR limits the need for discretion by national authorities, minimises the use of banks' internal estimates, and avoids undue complexity by drawing upon prudential approaches already available in the capital framework. It has been calibrated to reflect the level of volatilities observed over the recent stress period, while also giving regard to incentives for centralised clearing of derivative transactions.
The SA-CCR retains the same general structure as that used in the CEM, consisting of two key regulatory components: replacement cost and potential future exposure. An alpha factor is applied to the sum of these components in arriving at the exposure at default (EAD). The EAD is multiplied by the risk weight of a given counterparty in accordance with either the Standardised or Internal Ratings-Based approaches for credit risk to calculate the corresponding capital requirement.