NGR = "net-to-gross" ratio: at the discretion of the competent authorities either:
(i) separate calculation: the quotient of the net replacement cost for all contracts included in a legally valid bilateral netting agreement with a given counterparty (numerator) and the gross replacement cost for all contracts included in a legally valid bilateral netting agreement with that counterparty (denominator), or (ii) aggregate calculation: the quotient of the aggregate sum of the net replacement cost calculated on a bilateral basis for all counterparties taking into account the contracts included in legally valid netting agreements (numerator) and the gross replacement cost for all contracts included in legally valid netting agreements (denominator).
