Starting September 1, 2009, Moody's Investors Service will withdraw the ratings on structured finance securities insured by guarantors that have financial strength ratings below ‘Baa3’ if either of two conditions are met: Moody's is unable to determine an underlying rating (i.e., absent consideration of the guaranty) on the security or the issuer has requested that the
guaranty constitute the sole credit consideration.
Moody’s said that securities that meet the either condition will be impacted unless prior to September 1st sufficient information is provided to determine the underlying rating or the rating agency is informed by the issuer as in the case of GMAC Certificados Bursatiles UDIS MXMACFW 07-5U, to no longer rate the security solely based on the guaranty.
If the underlying rating cannot be determined or if the issuer has requested that the guaranty constitute the sole credit consideration, and the guarantor's financial strength rating is ‘Baa3’ or higher, the rating on a structured finance security will continue to be equal to the guarantors financial strength rating.
At this time, Moody's is not changing the rating methodology it applies for non-structured finance securities wrapped by financial guarantors.