Counterparty Risk Subject To ATE
Credit ATE (Additional Termination Event) clause is a counterparty risk mitigant that allows banks to terminate and close out bilateral derivative contracts if the credit rating of the counterparty falls below the trigger level. Since credit default is often preceded by rating downgrades, credit ATE can significantly reduces the counterparty credit risk by early terminating exposure. However, there is still the risk that counterparty may default without going through severe downgrade. This paper presents a practical model for valuating CVA subject to ATE.