...- We reviewed 36 ratings from six U.S. RMBS non-qualified mortgage transactions. - Of the 36 ratings, we upgraded 14 and affirmed 22. - The rating actions reflect our view of transaction-specific performance and/or structural characteristics (or both) and their potential effects on the individual classes. NEW YORK (S&P Global Ratings) April 26, 2024--S&P Global Ratings today completed its review of the ratings on 36 classes from six U.S. RMBS non-qualified mortgage transactions. The review yielded 14 upgrades and 22 affirmations. (See ratings list.) For each transaction, we performed a credit analysis using updated loan-level information from which we determined foreclosure frequency, loss severity, and loss coverage amounts commensurate for each rating level. In addition, we used the same mortgage operational assessment, representation and warranty, and due diligence factors that were applied at issuance. Our geographic concentration and prior credit event adjustment factors were based...