J.P. Morgan Mortgage Trust 2026-9 secures KBRA ratings for 96 RMBS classes
A $340.9 million residential mortgage securitization tied to 292 first-lien fixed-rate loans is moving through the U.S. structured finance market. The collateral mix is dominated by non-conforming mortgages, while the pool’s weighted average original credit score of 770 points to prime-quality borrowers.
Highlights
- KBRA assigns ratings to 96 classes of mortgage pass-through certificates totaling $340.9 million in unpaid principal issued by J.P. Morgan Mortgage Trust 2026-9.
- The mortgage pool consists of 292 first-lien, fixed-rate loans, with 79.3% non-conforming and a weighted average credit score of 770 as of October 1, 2026.
- KBRA's analysis employs its REALM model, cash flow modeling, and due diligence review, supporting investor assessment of collateral quality and structural protections in U.S. RMBS.
Transaction structure and rating scope
As reported by KBRA, citing Kroll Bond Rating Agency, KBRA assigns ratings to 96 classes of mortgage pass-through certificates issued by J.P. Morgan Mortgage Trust 2026-9, or JPMMT 2026-9. The mortgage pool has an aggregate unpaid principal balance of $340.9 million as of the October 1, 2026 cut-off date and consists of 292 first-lien, fixed-rate residential mortgage loans.The pool includes 79.3% non-conforming loans and 20.7% conforming loans. KBRA says the weighted average original credit score is 770, a level it describes as consistent with prime mortgage collateral.
Methodology and market relevance
KBRA says its rating analysis incorporates loan-level review of the mortgage pool through its Residential Asset Loss Model, or REALM, alongside an examination of third-party loan file due diligence. The agency also applies cash flow modeling to the transaction’s payment structure and reviews key transaction parties, as well as the legal structure and documentation supporting the deal.The rating action adds another issuance to the U.S. residential mortgage-backed securities market, where investors continue to assess collateral quality, underwriting characteristics and structural protections. For issuers and buyers, the composition of the loan pool and the analytical framework behind the ratings remain central to pricing and risk evaluation.
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