Press Release

DBRS Morningstar Confirms Ratings of Cartesian Residential Mortgages 4 S.A.

RMBS

July 16, 2020

DBRS Ratings GmbH (DBRS Morningstar) confirmed its ratings of the notes issued by Cartesian Residential Mortgages 4 S.A. (the Issuer) as follows:

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

The ratings of the Class A Notes and Class B Notes address the timely payment of interest and ultimate payment of principal on or before the legal final maturity date. The ratings of the Class C Notes and Class D 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 May 2020 payment date.
-- Portfolio default rate (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 Dutch prime residential mortgage loans originated by Venn Hypotheken B.V. The portfolio is serviced by Ember VRM S.a.r.l., with Stater Nederland B.V. and HypoCasso B.V. acting as subservicers.

PORTFOLIO PERFORMANCE
As of May 2020, loans two to three months in arrears were 0.2% of the outstanding portfolio balance, and loans more than three months in arrears were 0.1%, both up from 0.0% at closing. As of May 2020, the cumulative default ratio was 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 to 3.7% and 17.9%, respectively.

CREDIT ENHANCEMENT AND RESERVES
As of the May 2020 payment date, credit enhancement to the Class A, Class B, Class C, and Class D Notes was 11.3%, 7.8%, 5.5%, and 3.9%, up from 11.0%, 7.6%, 5.3%, and 3.8% at the DBRS Morningstar initial rating, respectively. Credit enhancement consists of subordination of the junior notes and a reserve fund.

The transaction benefits from a reserve fund of EUR 7.5 million. The entire reserve fund is available to cover senior fees, senior swap payments, interest shortfalls on the Class A and Class B notes and the Class A principal deficiency ledger (PDL) before being replenished to its first target level (1.25% of the outstanding Class A and Class B notes). The remaining reserve balance is available to cover interest shortfalls on the Class C and Class D notes in addition to the PDLs on the Class B, Class C, and Class D notes before being replenished to its second target level (2.0% of the outstanding Class A to Class E notes, subject to a floor of EUR 100,000).

At closing, a pre-funding reserve was funded using overissuance of the Notes to EUR 44.5 million and was used to purchase additional mortgages loans during the prefunding period prior to the first payment date.

Citibank Europe plc – Luxembourg Branch (Citibank) and Citibank N.A., London Branch act as the Issuer Account Bank and Issuer Account Agent for the transaction, respectively. Based on the private DBRS Morningstar rating of Citibank, 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.

BNP Paribas SA acts as the swap counterparty for the transaction. DBRS Morningstar's public Long-Term Critical Obligations Rating of BNP Paribas SA at AA (high) is above the First Rating Threshold as described in DBRS Morningstar's "Derivative 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 arise 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 its expected PD for self-employed borrowers, incorporated a moderate reduction in residential property values, and considered reported payment holidays in its analysis.

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 updated on 1 June 2020. For details see the following commentaries: https://www.dbrsmorningstar.com/research/361867/global-macroeconomic-scenarios-june-update and https://www.dbrsmorningstar.com/research/359903/global-macroeconomic-scenarios-application-to-credit-ratings. DBRS Morningstar’s 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 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: http://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 Credit Ratings” of the “Global Methodology for Rating Sovereign Governments” at: https://www.dbrsmorningstar.com/research/350410/global-methodology-for-rating-sovereign-governments.

The sources of data and information used for these ratings include investor reports provided by Intertrust Administrative Services B.V., and loan-level data provided by the European DataWarehouse GmbH.

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 16 July 2019, when DBRS Morningstar finalised its provisional ratings of the Class A, Class B, Class C, and Class D Notes at AAA (sf), AA (high) (sf), A (sf), and BBB (high) (sf), respectively.

The lead analyst responsibilities for this transaction have been transferred to Alfonso Candelas.

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 rating, DBRS Morningstar considered the following stress scenarios as compared with the parameters used to determine the rating (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 3.7% and 17.9%, 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 fall to AA (sf), assuming no change in the PD. If the PD increases by 50%, the rating of the Class A Notes would be expected to fall to AA (sf), assuming no change in the LGD. Furthermore, if both the PD and LGD increase by 50%, the rating of the Class A Notes would be expected to fall to A (sf).

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

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

Class D Notes Risk Sensitivity:
-- 25% increase in LGD, expected rating of BB (high) (sf)
-- 50% increase in LGD, expected rating of BB (high) (sf)
-- 25% increase in PD, expected rating of BB (high) (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 (sf)
-- 50% increase in PD and 25% increase in LGD, expected rating of BB (sf)
-- 50% increase in PD and 50% increase in LGD, expected rating of BB (low) (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 U.S. regulations only.

Lead Analyst: Alfonso Candelas, Senior Vice President
Rating Committee Chair: David Lautier, Senior Vice President
Initial Rating Date: 27 June 2019

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: http://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 http://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.

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