KBRA assigns preliminary ratings to OBX 2026-NQM17 mortgage-backed notes
The U.S. non-prime residential mortgage-backed securities market is adding a $781.5 million transaction as KBRA assigns preliminary ratings to 13 classes of notes from OBX 2026-NQM17 Trust. The deal is backed by 1,555 residential mortgages, with fixed-rate loans accounting for 96.0% of the pool and hybrid adjustable-rate mortgages making up the remaining 4.0%.
Highlights
- KBRA assigns preliminary ratings to OBX 2026-NQM17 Trust, backed by non-prime RMBS with 18.5% Non-QM and 64.1% ATR/QM-exempt loans.
- No single originator exceeds 10% of the collateral pool, reducing concentration risk across the transaction's mortgage-backed securities.
- KBRA's analysis relies on loan-level reviews, cash flow modeling, and legal documentation under its U.S. RMBS methodology, emphasizing investor focus on collateral and payment structure.
Transaction structure and collateral profile
As reported by KBRA, citing Kroll Bond Rating Agency, the OBX 2026-NQM17 Trust transaction consists of non-prime RMBS backed by loans that are either classified as non-qualified mortgages or exempt from the Ability-to-Repay/Qualified Mortgage rule because they were originated for non-consumer purposes.KBRA says 18.5% of the pool is made up of Non-QM loans, while 64.1% is exempt from the ATR/QM rule. No single originator represents more than 10% of the collateral pool, a factor that limits concentration within the transaction.
Methodology and market relevance
KBRA says its preliminary ratings analysis incorporates loan-level review of the mortgage pool through its Residential Asset Loss Model, third-party loan file due diligence, cash flow modeling of the payment structure, and reviews of key transaction parties.The rating agency also assesses the legal structure and documentation of the deal under its U.S. RMBS rating methodology. The transaction adds to issuance in the non-prime securitization market, where collateral composition, underwriting exemptions and payment structure remain central to investor risk evaluation.
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