Fitch Ratings has updated its cash flow criteria for U.S. residential mortgage-backed securities with what it describes as improvements to its new issue analysis. This includes changes to ratings of resecuritizations aimed at accounting for potential variability in expected loss timing and prepayment speeds. It also is incorporating into its analysis "back-loaded" loss timing assumptions for current and delinquent loans, a low prepayment scenario and new structured finance interest rate stresses.
Processing Content
