Article 383 › 1

An institution which has permission to use an internal model for the specific risk of debt instruments in accordance with point (d) of Article 363 (1) shall, for all transactions for which it has permission to use the IMM for determining the exposure value for the associated counterparty credit risk exposure in accordance with Article 283, determine the own funds requirements for CVA risk by modelling the impact of changes in the counterparties' credit spreads on the CVAs of all counterparties of those transactions, taking into account CVA hedges that are eligible in accordance with Article 386. An institution shall use its internal model for determining the own funds requirements for the specific risk associated with traded debt positions and shall apply a 99 % confidence interval and a 10-day equivalent holding period. The internal model shall be used in such way that it simulates changes in the credit spreads of counterparties, but does not model the sensitivity of CVA to changes in other market factors, including changes in the value of the reference asset, commodity, currency or interest rate of a derivative. The own funds requirements for CVA risk for each counterparty shall be calculated in accordance with the following formula: where: ti the time of the i-th revaluation, starting from t0=0; tT the longest contractual maturity across the netting sets with the counterparty; si is the credit spread of the counterparty at tenor ti, used to calculate the CVA of the counterparty. Where the credit default swap spread of the counterparty is available, an institution shall use that spread. Where such a credit default swap spread is not available, an institution shall use a proxy spread that is appropriate having regard to the rating, industry and region of the counterparty; LGDMKT the LGD of the counterparty that shall be based on the spread of a market instrument of the counterparty if a counterparty instrument is available. Where a counterparty instrument is not available, it shall be based on the proxy spread that is appropriate having regard to the rating, industry and region of the counterparty. The first factor within the sum represents an approximation of the market implied marginal probability of a default occurring between times ti-1 and ti; EEi the expected exposure to the counterparty at revaluation time ti, where exposures of different netting sets for such counterparty are added, and where the longest maturity of each netting set is given by the longest contractual maturity inside the netting set; An institution shall apply the treatment set out in paragraph 3 in the case of margined trading, if the institution uses the EPE measure referred to in point (a) or (b) of Article 285(1) for margined trades; Di the default risk-free discount factor at time ti, where D0 =1.

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Source: EUR-Lex CELLAR · retrieved 2026-09-04