DBRS Morningstar Confirms Ratings of Proteus RMBS DAC

DBRS Ratings GmbH (DBRS Morningstar) confirmed its ratings of the notes issued by Proteus RMBS DAC (the Issuer) as follows:

-- Class A at AAA (sf)
-- Class B at AA (high) (sf)
-- Class C at AA (low) (sf)
-- Class D at A (sf)
-- Class E at BBB (sf)

The rating on the Class A notes addresses the timely payment of interest and ultimate payment of principal on or before the legal final maturity date in October 2054. The ratings on the Class B, Class C, Class D, and Class E notes address the ultimate payment of interest and principal on or before the legal final maturity date.

The confirmations follow an annual review of the transaction and are based on the following analytical considerations:

-- Portfolio performance, in terms of delinquencies, defaults, and losses as of the October 2020 payment date;
-- Probability of default (PD), loss given default (LGD), and expected loss assumptions on the remaining receivables;
-- Current available credit enhancement to the notes to cover the expected losses at their respective rating levels;
-- Current economic environment and an assessment of sustainable performance, as a result of the Coronavirus Disease (COVID-19) pandemic.

The Issuer is a securitisation of Irish residential mortgages originated by Danske Bank A/S and serviced by Pepper Asset Servicing (PAS). The transaction closed in December 2018 with the proceeds used to refinance the notes originally issued by the Issuer in December 2017. The EUR 1,578.4 million portfolio at closing consisted of mortgages for both owner-occupied properties (74.3% of the initial pool balance) and buy-to-let properties (25.7%).

PORTFOLIO PERFORMANCE
As of the October 2020 payment date, as reported in the investor report, loans one month and two months in arrears represented 0.5% and 0.3% of the outstanding portfolio balance, respectively, while loans greater than three months in arrears amounted to 1.0%. While the quarterly investor reports do not report any periodic defaults since closing, per the loan-level data provided as of 30 September 2020, loans representing 1.0% of the current outstanding pool balance have defaulted since transaction closing.

PORTFOLIO ASSUMPTIONS AND KEY RATING DRIVERS
DBRS Morningstar conducted a loan-by-loan analysis of the remaining pool of receivables and has updated its base case PD and LGD assumptions to 4.5% and 32.6%, respectively.

CREDIT ENHANCEMENT
The subordination of the respective junior obligations and the general reserve fund provide credit enhancement to the notes. As of the October 2020 payment date, credit enhancement to the Class A notes increased to 30.2% from 27.5% at the time of the previous annual review 12 months ago; credit enhancement to the Class B notes increased to 23.3% from 21.4%; credit enhancement to the Class C notes increased to 18.3% from 16.9%; credit enhancement to the Class D notes increased to 14.6% from 13.6%; and credit enhancement to the Class E notes increased to 11.4% from 10.8%.

The transaction benefits from a general reserve fund that is available to cover senior expenses, interest payments on the rated notes, and to clear debit balances on the principal deficiency ledgers of the rated notes. As of the October 2020 payment date, the general reserve fund was at its target balance of EUR 3.95 million. The general reserve fund is expected to begin amortising in January 2021. The liquidity reserve fund remains unfunded, unless there is a specific shortfall on the general reserve fund on the January 2021 payment date, in which case it is to be funded to 4.0% of the Class A notes balance at closing.

Citibank Europe plc acts as the account bank for the transaction. Based on the DBRS Morningstar Long-Term Issuer Rating of Citibank Europe plc at AA (low), 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 ratings assigned to the notes, as described in DBRS Morningstar's "Legal Criteria for European Structured Finance Transactions" methodology.

DBRS Morningstar analysed the transaction structure in Intex DealMaker.

The Coronavirus Disease (COVID-19) and the resulting isolation measures have caused an economic contraction, leading to sharp increases in unemployment rates and income reductions for many borrowers. DBRS Morningstar anticipates that delinquencies may continue to increase in the coming months for many RMBS transactions, some meaningfully. The ratings are based on additional analysis and adjustments to expected performance as a result of the global efforts to contain the spread of the coronavirus. For this transaction, DBRS Morningstar increased the expected default rate for self-employed borrowers, a moderate decline in residential property prices, and conducted additional sensitivity analysis to determine that the transaction benefits from sufficient liquidity support to withstand high levels of payment holidays in the portfolio.

On 16 April 2020, the DBRS Morningstar Sovereign group released a set of macroeconomic scenarios for the 2020-22 period in select economies. These scenarios were last updated on 2 December 2020. For details, see the following commentaries: https://www.dbrsmorningstar.com/research/370673/dbrs-morningstar-releases-global-macroeconomic-scenarios-december-update and https://www.dbrsmorningstar.com/research/359903/global-macroeconomic-scenarios-application-to-credit-ratings. The DBRS Morningstar analysis considered impacts consistent with the moderate scenario in the referenced reports.

On 5 May 2020, DBRS Morningstar published a commentary outlining how the coronavirus crisis is likely to affect the DBRS Morningstar-rated RMBS transactions in Europe. For more details, please see: https://www.dbrsmorningstar.com/research/360599/european-rmbs-transactions-risk-exposure-to-coronavirus-covid-19-effect and https://www.dbrsmorningstar.com/research/362712/european-structured-finance-covid-19-credit-risk-exposure-roadmap.

For more information regarding rating methodologies and Coronavirus Disease (COVID-19), please see the following DBRS Morningstar press release: https://www.dbrsmorningstar.com/research/357883.

For more information regarding structured finance rating methodologies and Coronavirus Disease (COVID-19), please see the following DBRS Morningstar press release: https://www.dbrsmorningstar.com/research/358308.

ESG CONSIDERATIONS
A description of how DBRS Morningstar considers ESG factors within the DBRS Morningstar analytical framework and its methodologies can be found at: https://www.dbrsmorningstar.com/research/357792.

Notes:
All figures are in euros unless otherwise noted.

The principal methodology applicable to the ratings is the “Master European Structured Finance Surveillance Methodology” (22 April 2020). 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.

Other methodologies referenced in this transaction are listed at the end of this press release. These may be found at: https://www.dbrsmorningstar.com/about/methodologies.

For a more detailed discussion of the sovereign risk impact on Structured Finance 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/364527/global-methodology-for-rating-sovereign-governments.

The sources of data and information used for these ratings include investor reports and loan-level information provided by Citibank N.A., London Branch (the Cash Manager).

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

At the time of the initial rating, 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 ratings to be of satisfactory quality.

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

The last rating action on this transaction took place on 18 December 2019, when DBRS Morningstar confirmed the ratings of AAA (sf), AA (high) (sf), AA (low) (sf), A (sf), and BBB (sf) on the Class A, Class B, Class C, Class D, and Class E notes, respectively.

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

To assess the impact of changing the transaction parameters on the ratings, DBRS Morningstar considered the following stress scenarios as compared with the parameters used to determine the 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 are 4.5% and 32.6%, respectively.
-- The risk sensitivity overview below illustrates the 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 rating of the Class A notes would be expected to remain at AAA (sf), ceteris paribus. If the PD increases by 50%, the rating of the Class A notes would be expected to decrease to AA (high) (sf), ceteris paribus. Furthermore, if both the PD and LGD increase by 50%, the rating of the Class A notes would be expected to decrease to AA (sf).

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

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

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

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

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

For further information on DBRS Morningstar historical default rates published by the European Securities and Markets Authority (ESMA) in a central repository, see:
http://cerep.esma.europa.eu/cerep-web/statistics/defaults.xhtml.

Ratings assigned by DBRS Ratings GmbH are subject to EU and US regulations only.

Lead Analyst: Daniel Rakhamimov, Senior Analyst
Rating Committee Chair: David Lautier, Senior Vice President
Initial Rating Date: 13 December 2018

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

-- Master European Structured Finance Surveillance Methodology (22 April 2020),
https://www.dbrsmorningstar.com/research/359884/master-european-structured-finance-surveillance-methodology.
Master European Residential Mortgage-Backed Securities Rating Methodology and Jurisdictional Addenda (21 September 2020) and European RMBS Credit Model v 1.0.0.0,
https://www.dbrsmorningstar.com/research/366958/master-european-residential-mortgage-backed-securities-rating-methodology-and-jurisdictional-addenda.
-- Legal Criteria for European Structured Finance Transactions (11 September 2019),
https://www.dbrsmorningstar.com/research/350234/legal-criteria-for-european-structured-finance-transactions.
-- Operational Risk Assessment for European Structured Finance Servicers (19 November 2020), https://www.dbrsmorningstar.com/research/370270/operational-risk-assessment-for-european-structured-finance-servicers.
-- Interest Rate Stresses for European Structured Finance Transactions (28 September 2020), https://www.dbrsmorningstar.com/research/367292/interest-rate-stresses-for-european-structured-finance-transactions.

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 these credits or on this industry, visit www.dbrsmorningstar.com or contact us at info@dbrsmorningstar.com.