DBRS Publishes U.S. RMBS Surveillance Methodology

DBRS, Inc. has today published its U.S. RMBS Surveillance methodology, which describes the assumptions utilized for surveillance on US RMBS transactions. The primary changes from the last published U.S. RMBS Surveillance Methodology are as follows:

•DBRS uses its proprietary RMBS Insight model (see “RMBS Insight: U.S. Residential Mortgage-Backed Securities Loss Model and Rating Methodology” on www.dbrs.com) to monitor transaction performance to the extent updated loan-level data is available.

•For transactions where updated loan-level data is unavailable, the loss assumptions will be derived from the Shadow Pool Methodology described in Appendix 1 using the origination loan-level tape.

DBRS criteria and methodologies are publicly available on its website www.dbrs.com under Methodologies.