(11)Article 259(6) of Regulation (EU) No 575/2013 allows institutions to set the exposure weighted-average LGD under the SEC-IRBA at 50 % to calculate the p-parameter of the SEC-IRBA formula when the share of the largest underlying exposure in the pool is no more than 3 %. To ensure consistency with that Article, institutions calculating K IRB for qualifying securitised exposures should also be allowed to set the pool’s exposure weighted-average LGD at 50 % for retail securitised exposures. It is appropriate to apply a 50 % LGD value in that case because retail securitised exposures typically exhibit high granularity levels. Article 161(1), points (e) and (f), of Regulation (EU) No 575/2013 specifies LGDs for senior and subordinated purchased corporate receivables where the institution is not able to estimate PDs or where those estimates do not meet certain requirements. In the context of a securitisation, those LGDs should be tailored to senior and subordinated qualifying securitised exposures, where the LGD of senior non-retail securitised exposures should not be lower than the set LGD of retail securitised exposures, considering the generally higher granularity level of pools of retail securitised exposures.