The FN 4.0 is currently -0-11 at 97-18 yiedling 4.247%. and the FN 4.5 is -0-11 at 100-08 yielding 4.469%. The secondary market current coupon is 4.436%.

Here is the FN 4.5 two day..

WE ARE BACK TO THE LOWS OF THE DAY....SOME LENDERS MAY REPRICE FOR THE WORSE

MBS, TSY , LIBOR QUOTES