OVERVIEW Since our last review in July, IM PASTOR 4 has continued to show a weakening performance. We have increased our default and loss assumptions on this transaction. Due to the deterioration of the credit quality of the portfolio backing this transaction, the levels of credit enhancement the underlying collateral provides to the rated classes of notes have decreased and are now negative for some of the rated classes of notes. We have therefore lowered and removed from CreditWatch negative our ratings on all classes of notes. IM PASTOR 4, which closed in June 2006, is a securitization transaction of a pool of Spanish residential mortgages originated by Banco Pastor. MADRID (Standard&Poor's) Oct. 10, 2011--Standard&Poor's Ratings