S&P basically came out today that they may downgrade more than half the recent vintage dupers, making them ineligible for the gubments TALF 3.0 plan. Surprisingly, it only sent A4 spreads 100 bps or so wider, but I imagine this plan will continue to unravel in an disorderly fashion.
It is likely that the proposed changes, which represent a significant change to the criteria for rating high investment-grade classes, will prompt a considerable amount of downgrades in recently issued (2005-2008 vintage) CMBS. Classes up through the most senior tranches of outstanding deals (so-called "A4s," "dupers," or "super-duper seniors") are likely to be affected. Our preliminary findings indicate that approximately 25%, 60%, and 90% of the most senior tranches (by count) within the 2005, 2006, and 2007 vintages, respectively, may be downgraded. We believe these transactions are characterized by increasingly more aggressive underwriting than prior vintages. Furthermore, recent vintage CMBS, particularly those issued since 2006, were originated during a time of peak rents and values, and as such, may be more affected by the proposed rental declines discussed in this RFC. We are currently evaluating the impact of the potential criteria changes on conduit/fusion CMBS transactions from all vintages. Once we evaluate the potential impact on existing ratings, we expect to issue a follow-up publication to this RFC.