MBS moving aggressively dowin coupon after the FOMC announced they will outlay an additional $750bn for Agency MBS and that THEY WILL PURCHASE $300BNLONGER TERM TREASURY SECURITIES!!!

"To provide greater support to mortgage lending and housing markets, the Committee  decided today to increase the size of the Federal Reserve's balance sheet  further by purchasing up to an additional $750 billion of agency mortgage-backed securities, bringing its total purchases of these securities to up to $1.25 , trillion this year, and to increase its purchases of agency debt this year by up  to $100 billion to a total of up to $200 billion. Moreover, to help improve  conditions in private credit markets, the Committee decided to purchase up to  $300 billion of longer-term Treasury securities over the next six months.

more to follow....