MBS MID MORNING UPDATE: further weakness

4.0's down 7 ticks at 99-18

4.5's down 4 ticks at 101-02

5.0's down 3 ticks at 102-01

Mid to longer term floating still has support with 4.5's staying above 101-00.  But reprices for the worse are still potentially on the way if you haven't seen them already.