DBRS Morningstar Takes Credit Rating Actions on 14 U.S. RMBS Transactions

DBRS, Inc. (DBRS Morningstar) reviewed 159 classes from 14 U.S. residential mortgage-backed securities (RMBS) transactions. Of the 159 classes reviewed, DBRS Morningstar upgraded 24 credit ratings, confirmed 133 credit ratings, and discontinued two credit ratings.

The credit rating upgrades reflect positive performance trends and increases in credit support sufficient to withstand stresses at their new credit rating levels. The credit rating confirmations reflect asset performance and credit-support levels that are consistent with the current credit ratings. The discontinued credit ratings reflect the full repayment of principal to bondholders.

The pools backing the reviewed RMBS transactions consist of prime, Alt-A, subprime, option adjustable-rate, and second lien collateral.

The transaction assumptions consider DBRS Morningstar’s baseline macroeconomic scenarios for rated sovereign economies, available in its commentary “Baseline Macroeconomic Scenarios for Rated Sovereigns: June 2023 Update,” published on June 30, 2023 (https://www.dbrsmorningstar.com/research/416703). These baseline macroeconomic scenarios replace DBRS Morningstar’s moderate and adverse Coronavirus Disease (COVID-19) pandemic scenarios, which were first published in April 2020.

The credit rating actions are the result of DBRS Morningstar’s application of its “U.S. RMBS Surveillance Methodology,” published on March 3, 2023.

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 (July 4, 2023).

Notes:
The principal methodology applicable to the credit ratings is the U.S. RMBS Surveillance Methodology (March 3, 2023; https://www.dbrsmorningstar.com/research/410498).

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

The credit ratings assigned to the classes below materially deviate from the credit ratings implied by the predictive model. DBRS Morningstar typically expects there to be a substantial likelihood that a reasonable investor or other user of the credit ratings would consider a three-notch or more deviation from the credit rating stresses implied by the predictive model to be a significant factor in evaluating the credit ratings. The rationale for the material deviations below varies among tranches being (1) additional seasoning and/or updated performance to be measured against a sustainable upgrade loan level cash flow stress, (2) actual deal or tranche performance is not fully reflected in projected cash flows/model output, (3) small loan count, or (4) dependency on another rating (such as an interest-only tranche or exchangeable tranche).

The below tranches materially deviate because of additional seasoning and/or updated performance being warranted to substantiate a further upgrade:

-- CWABS Asset-Backed Certificates Trust 2004-BC5, Asset-Backed Certificates, Series 2004-BC5, Class M-6
-- CWABS Asset-Backed Certificates Trust 2004-BC5, Asset-Backed Certificates, Series 2004-BC5, Class M-7
-- DSLA Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005 AR6, Class 2A-1A
-- Encore Credit Receivables Trust 2005-4, Asset-Backed Pass-Through Certificates, Series 2005-4, Class M-4
-- Encore Credit Receivables Trust 2005-4, Asset-Backed Pass-Through Certificates, Series 2005-4, Class M-5
-- First Franklin Mortgage Loan Trust 2006-FF8, Asset-Backed Certificates, Series 2006-FF8, Class II-A4
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 1-A-2
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 2-A-1
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 2-A-3
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 2-A-8
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 2-A-9
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 3-A-1
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 3-A-2
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 3-A-6
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class 3-A-8
-- Lehman XS Trust 2006-5, Mortgage Pass-Through Certificates, Series 2006-5, Class 2-A3
-- Lehman XS Trust 2006-5, Mortgage Pass-Through Certificates, Series 2006-5, Class 2-A4A
-- Long Beach Mortgage Loan Trust 2005-3, Asset-Backed Certificates, Series 2005-3, Class I-A
-- Morgan Stanley Home Equity Loan Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class M-5

The below tranches materially deviate because actual deal or tranche performance is not fully reflected in projected cash flows/model output:

-- CWABS Asset-Backed Certificates Trust 2004-BC5, Asset-Backed Certificates, Series 2004-BC5, Class B
-- CWABS Asset-Backed Certificates Trust 2004-BC5, Asset-Backed Certificates, Series 2004-BC5, Class M-8
-- CWABS Asset-Backed Certificates Trust 2006-SPS1, Asset-Backed Certificates, Series 2006-SPS1, Class A
-- DSLA Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005 AR6, Class 2A-1B
-- DSLA Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005 AR6, Class 2A-1C
-- First Franklin Mortgage Loan Trust 2005-FF9, Mortgage Pass-Through Certificates, Series 2005-FF9, Class M1
-- First Franklin Mortgage Loan Trust 2006-FF8, Asset-Backed Certificates, Series 2006-FF8, Class M-1
-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class A-P
-- Lehman Mortgage Trust 2008-6, Mortgage Pass-Through Certificates, Series 2008-6, Class 2-A2
-- Lehman Mortgage Trust 2008-6, Mortgage Pass-Through Certificates, Series 2008-6, Class 2-A3
-- Lehman XS Trust 2006-5, Mortgage Pass-Through Certificates, Series 2006-5, Class 1-A1A
-- Long Beach Mortgage Loan Trust 2005-3, Asset-Backed Certificates, Series 2005-3, Class M-1

The below material deviations are due to a small loan count:

-- GSR Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005-AR6, Class 4A1
-- GSR Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005-AR6, Class 4A2
-- GSR Mortgage Loan Trust 2005-AR6, Mortgage Pass-Through Certificates, Series 2005-AR6, Class 4A5
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 1-A-2
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 2-A-2
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 2-A-3
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 3-A-3
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 3-A-4
-- J.P. Morgan Mortgage Trust 2005-A5, Mortgage Pass-Through Certificates, Series 2005-A5, Class 5-A-1
-- Lehman Mortgage Trust 2008-6, Mortgage Pass-Through Certificates, Series 2008-6, Class 1-A2
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 2-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 3-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 4-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 5-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 6-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 7-A-1
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 7-A-2
-- MASTR Adjustable Rate Mortgages Trust 2005-2, Mortgage Pass-Through Certificates, Series 2005-2, Class 7-A-X

The below material deviation is due to a dependency on another rating (such as an interest-only tranche or exchangeable tranche):

-- J.P. Morgan Mortgage Trust 2006-S1, Mortgage Pass-Through Certificates, Series 2006-S1, Class A-X

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.

The credit rating was initiated at the request of the rated entity.
The rated entity or its related entities did participate in the credit rating process for this rating action.
DBRS Morningstar had access to the accounts, management, and other relevant internal documents of the rated entity or its related entities in connection with this credit rating action.
This is a solicited credit rating.

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

RMBS Insight 1.3: U.S. Residential Mortgage-Backed Securities Model and Rating Methodology (August 31, 2023; https://www.dbrsmorningstar.com/research/420108/)

Interest Rate Stresses for U.S. Structured Finance Transactions (June 9, 2023; https://www.dbrsmorningstar.com/research/415687)

Legal Criteria for U.S. Structured Finance (December 7, 2022; https://www.dbrsmorningstar.com/research/407008)

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