On May 5, S&P updated and clarified its methodology for reviewing mortgage originators in U.S. RMBS transactions.  S&P Release.

On April 30, S&P released its updated methodology for reviewing seasoned loans in U.S. RMBS transactions.  S&P Release. 

On April 30, S&P revised its U.S. RMBS Prime, Alt-A, and Subprime assumptions and incorporated the revisions into its LEVELS U.S. mortgage analytical model, version 7.2. S&P LEVELS Release 1. S&P LEVELS Release 2.

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