Press Release

DBRS Morningstar Upgrades and Confirms Ratings on Dilosk RMBS No. 5 Following Release of European RMBS Insight: Irish Addendum

RMBS

September 07, 2023

DBRS Ratings GmbH (DBRS Morningstar) took the following credit rating actions on the notes issued by Dilosk RMBS No. 5 DAC (the Issuer) and removed the ratings on the Class B to Class F notes from Under Review with Positive Implications (UR-Pos.), where they were placed on 9 June 2023:

-- Class A confirmed at AAA (sf)
-- Class B upgraded to AA (high) (sf) from AA (sf)
-- Class C upgraded to AA (high) (sf) from A (high) (sf)
-- Class D upgraded to AA (sf) from BBB (high) (sf)
-- Class E upgraded to A (sf) from BBB (low) (sf)
-- Class F upgraded to A (low) (sf) from BB (sf)

The rating on the Class A notes addresses the timely payment of interest and the full payment of principal by the legal final maturity date in December 2060. The ratings on the Class B, Class C, Class D, Class E, and Class F notes address the ultimate payment of interest and principal, and the timely payment of interest while the senior-most class outstanding.

The credit rating actions are the result of an annual review of the transaction following DBRS Morningstar’s finalisation of its “European RMBS Insight: Irish Addendum” (the Methodology) and corresponding European RMBS Insight Model (the Model) on 5 June 2023 as well as the end of the review period for the transaction, which began on 9 June 2023. For more details, please see the following press release: https://www.dbrsmorningstar.com/research/415601/dbrs-morningstar-places-ratings-on-six-irish-rmbs-transactions-under-review-following-release-of-european-rmbs-insight-irish-addendum.

The Methodology presents the criteria for which Irish RMBS ratings, and, where relevant, Irish covered bonds ratings, are assigned and/or monitored. The Methodology superseded DBRS Morningstar’s “Irish Residential Mortgage Addendum” to its “Master European Residential Mortgage-Backed Securities Rating Methodology and Jurisdictional Addenda” published on 28 November 2022 and introduced a new proprietary credit model to forecast the expected default rates and losses for portfolios of Irish residential mortgages. The Model combines a loan scoring approach (LSA) and dynamic delinquency migration matrices (DMM) to calculate loan-level defaults and losses. The LSA and DMM were developed using jurisdictional specific data on loans, borrowers, and collateral types. In addition, the Model uses a house price approach to generate market value decline assumptions. For more details, please see the following press release:
https://www.dbrsmorningstar.com/research/415309/dbrs-morningstar-publishes-final-methodology-on-european-rmbs-insight-irish-addendum-and-withdraws-irish-residential-mortgage-addendum-to-master-european-rmbs-rating-methodology.

Along with the material changes introduced in the Methodology, the credit rating actions are based on the following analytical considerations:
-- Portfolio performance, in terms of delinquencies, defaults, and losses;
-- Portfolio default rate (PD), loss given default (LGD), and expected loss assumptions on the remaining receivables; and
-- Current available credit enhancement to the notes to cover the expected losses at their respective rating levels.

The transaction is a securitisation of buy-to-let and owner-occupied mortgage loans, originated and serviced by Dilosk DAC and granted to individuals, corporates, and pension trusts in the Republic of Ireland.

PORTFOLIO PERFORMANCE
As of June 2023, the 90+-day delinquency ratio and the cumulative default ratio were both 0.0%.

PORTFOLIO ASSUMPTIONS AND KEY DRIVERS
DBRS Morningstar conducted a loan-by-loan analysis of the remaining pool of receivables and updated its base case PD and LGD assumptions at the B (sf) rating level to 1.2% and 10.0%, respectively.

CREDIT ENHANCEMENT
As of the June 2023 payment date, credit enhancements available to the Class A, Class B, Class C, Class D, Class E, and Class F notes were 20.2%, 10.8%, 6.8%, 4.3%, 2.6%, and 1.7%, respectively, up from 18.6%, 9.9%, 6.3%, 3.9%, 2.3%, and 1.6%, respectively, at the last annual review. Credit enhancement to the notes is provided by the subordination of junior classes and the general reserve fund.

The general reserve fund is currently at its target level of EUR 1.1 million, equal to 1.3% of the original principal balance of the rated notes and the Class Z1 notes, minus the liquidity reserve target amount. The general reserve fund is available to cover senior fees, interest, and principal (via the principal deficiency ledgers) on the rated notes.

The liquidity reserve fund is currently at its target level of EUR 3.1 million, equal to 1.3% of the outstanding principal balance of the Class A notes, and is available to cover senior fees and interest on the Class A notes.

BNP Paribas Ireland - Dublin branch (BNP Paribas Dublin) acts as the account bank for the transaction. Based on DBRS Morningstar’s private rating on BNP Paribas Dublin, the downgrade provisions outlined in the transaction documents, and other mitigating factors inherent in the transaction structure, DBRS Morningstar considers the risk arising from the exposure to the account bank to be consistent with the rating assigned to the Class A notes, as described in DBRS Morningstar's "Legal Criteria for European Structured Finance Transactions" methodology.

Natixis S.A. acts as the swap counterparty for the transaction. DBRS Morningstar's private rating on Natixis S.A. is above the first rating threshold as described in DBRS Morningstar's "Derivative Criteria for European Structured Finance Transactions" methodology.

DBRS Morningstar’s credit ratings on the notes address the credit risk associated with the identified financial obligations in accordance with the relevant transaction documents.

DBRS Morningstar’s credit ratings on the notes also addresses the credit risk associated with the increased rate of interest applicable to the notes if the notes are not redeemed on the Optional Redemption Date (as defined in and) in accordance with the applicable transaction documents.

DBRS Morningstar’s credit ratings do not address non-payment risk associated with contractual payment obligations contemplated in the applicable transaction documents that are not financial obligations.

DBRS Morningstar’s long-term credit ratings provide opinions on risk of default. DBRS Morningstar considers risk of default to be the risk that an issuer will fail to satisfy the financial obligations in accordance with the terms under which a long-term obligation has been issued.

ENVIRONMENTAL, SOCIAL, GOVERNANCE CONSIDERATIONS
There were no Environmental/Social/Governance factors that had a significant or relevant effect on the credit analysis.

A description of how DBRS Morningstar considers ESG factors within the DBRS Morningstar analytical framework can be found in the DBRS Morningstar Criteria: Approach to Environmental, Social, and Governance Risk Factors in Credit Ratings at https://www.dbrsmorningstar.com/research/416784/dbrs-morningstar-criteria-approach-to-environmental-social-and-governance-risk-factors-in-credit-ratings.

DBRS Morningstar analysed the transaction structure in Intex DealMaker.

Notes:
All figures are in euros unless otherwise noted.

The principal methodology applicable to the credit ratings is the “Master European Structured Finance Surveillance Methodology” (7 February 2023), https://www.dbrsmorningstar.com/research/409485/master-european-structured-finance-surveillance-methodology.

Other methodologies referenced in this transaction are listed at the end of this press release.

DBRS Morningstar has applied the principal methodology consistently and conducted a review of the transaction in accordance with the principal methodology.

A review of the transaction legal documents was not conducted as the legal documents have remained unchanged since the most recent rating action.

For a more detailed discussion of the sovereign risk impact on Structured Finance credit ratings, please refer to “Appendix C: The Impact of Sovereign Ratings on Other DBRS Morningstar Credit Ratings” of the “Global Methodology for Rating Sovereign Governments” at: https://www.dbrsmorningstar.com/research/401817/global-methodology-for-rating-sovereign-governments.

The DBRS Morningstar Sovereign group releases baseline macroeconomic scenarios for rated sovereigns. DBRS Morningstar analysis considered impacts consistent with the baseline scenarios as set forth in the following report: https://www.dbrsmorningstar.com/research/384482/baseline-macroeconomic-scenarios-application-to-credit-ratings.

The sources of data and information used for these credit ratings include investor reports provided by Deutsche Bank AG/London and loan-level data provided by European DataWarehouse GmbH and Dilosk DAC.

DBRS Morningstar did not rely upon third-party due diligence in order to conduct its analysis.

At the time of the initial credit ratings, DBRS Morningstar was supplied with third-party assessments. However, this did not impact the rating analysis.

DBRS Morningstar considers the data and information available to it for the purposes of providing these credit ratings to be of satisfactory quality.

DBRS Morningstar does not audit or independently verify the data or information it receives in connection with the credit rating process.

The last credit rating actions on this transaction took place on 9 June 2023, when DBRS Morningstar placed the Class B to Class F notes UR-Pos. following the finalisation of DBRS Morningstar’s Methodology and Model.

Information regarding DBRS Morningstar credit ratings, including definitions, policies, and methodologies, is available at www.dbrsmorningstar.com.

Sensitivity Analysis: To assess the impact of changing the transaction parameters on the credit ratings, DBRS Morningstar considered the following stress scenarios as compared with the parameters used to determine the credit ratings (the base case):

-- DBRS Morningstar expected a lifetime base case PD and LGD for the pool based on a review of the current assets. Adverse changes to asset performance may cause stresses to base case assumptions and therefore have a negative effect on credit ratings.
-- The base case PD and LGD of the current pool of loans for the Issuer at the B (sf) credit rating level are 1.2% and 10.0%, respectively.
-- The risk sensitivity overview below illustrates the credit ratings expected if the PD and LGD increase by a certain percentage over the base case assumption. For example, if the LGD increases by 50%, the credit rating on the Class A notes would be expected to remain at AAA (sf), assuming no change in the PD. If the PD increases by 50%, the credit rating on the Class A notes would be expected to remain at AAA (sf), assuming no change in the LGD. Furthermore, if both the PD and LGD increase by 50%, the credit rating on the Class A notes would be expected to remain at AAA (sf).

Class A Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of AAA (sf)
-- 50% increase in LGD, expected credit rating of AAA (sf)
-- 25% increase in PD, expected credit rating of AAA (sf)
-- 50% increase in PD, expected credit rating of AAA (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of AAA (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of AAA (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of AAA (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of AAA (sf)

Class B Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in LGD, expected credit rating of AA (high) (sf)
-- 25% increase in PD, expected credit rating of AA (high) (sf)
-- 50% increase in PD, expected credit rating of AA (high) (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of AA (high) (sf)

Class C Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in LGD, expected credit rating of AA (high) (sf)
-- 25% increase in PD, expected credit rating of AA (high) (sf)
-- 50% increase in PD, expected credit rating of AA (high) (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of AA (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of AA (sf)

Class D Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of AA (sf)
-- 50% increase in LGD, expected credit rating of AA (sf)
-- 25% increase in PD, expected credit rating of AA (sf)
-- 50% increase in PD, expected credit rating of AA (low) (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of AA (low) (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of A (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of A (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of A (sf)

Class E Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of A (sf)
-- 50% increase in LGD, expected credit rating of A (sf)
-- 25% increase in PD, expected credit rating of A (sf)
-- 50% increase in PD, expected credit rating of A (low) (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of A (low) (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of A (low) (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of BBB (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of BBB (high) (sf)

Class F Risk Sensitivity:
-- 25% increase in LGD, expected credit rating of A (low) (sf)
-- 50% increase in LGD, expected credit rating of BBB (high) (sf)
-- 25% increase in PD, expected credit rating of A (low) (sf)
-- 50% increase in PD, expected credit rating of BBB (high) (sf)
-- 25% increase in PD and 25% increase in LGD, expected credit rating of BBB (high) (sf)
-- 25% increase in PD and 50% increase in LGD, expected credit rating of BBB (high) (sf)
-- 50% increase in PD and 25% increase in LGD, expected credit rating of BBB (high) (sf)
-- 50% increase in PD and 50% increase in LGD, expected credit rating of BBB (high) (sf)

For further information on DBRS Morningstar historical default rates published by the European Securities and Markets Authority (ESMA) in a central repository, see: https://registers.esma.europa.eu/cerep-publication. For further information on DBRS Morningstar historical default rates published by the Financial Conduct Authority (FCA) in a central repository, see https://data.fca.org.uk/#/ceres/craStats.

These credit ratings are endorsed by DBRS Ratings Limited for use in the United Kingdom.

Lead Analyst: Daniel Rakhamimov, Assistant Vice President
Rating Committee Chair: Alfonso Candelas, Senior Vice President
Initial Rating Date: 5 October 2021

DBRS Ratings GmbH
Neue Mainzer Straße 75
60311 Frankfurt am Main Deutschland
Tel. +49 (69) 8088 3500
Geschäftsführer: Detlef Scholz
Amtsgericht Frankfurt am Main, HRB 110259

The credit rating methodologies used in the analysis of this transaction can be found at: https://www.dbrsmorningstar.com/about/methodologies.

A description of how DBRS Morningstar analyses structured finance transactions and how the methodologies are collectively applied can be found at https://www.dbrsmorningstar.com/research/278375.

For more information on this credit or on this industry, visit www.dbrsmorningstar.com or contact us at info@dbrsmorningstar.com.

ALL MORNINGSTAR DBRS RATINGS ARE SUBJECT TO DISCLAIMERS AND CERTAIN LIMITATIONS. PLEASE READ THESE DISCLAIMERS AND LIMITATIONS AND ADDITIONAL INFORMATION REGARDING MORNINGSTAR DBRS RATINGS, INCLUDING DEFINITIONS, POLICIES, RATING SCALES AND METHODOLOGIES.

Download This Press Release