(4)For other types of derivative contracts that constitute a combination of long and short positions, to ensure that the accurate default risk is captured, institutions should decompose those derivative contracts into individual transaction legs. Only the legs with default risk, where institutions have a risk of a loss in the case of default, should be relevant for the calculation of the indirect exposure value arising from those derivative contracts. However, where institutions are not able to apply that methodology, and to ensure a conservative treatment, they should be allowed to determine the indirect exposure value of the underlying instruments as the maximum loss that they could incur following the default of the issuer of the underlying to which the derivative refers.