Although the 2 yr Treasury continues to fare reasonably well, longer durations are off a bit, with the 10 yr down 10 ticks pushing it's yield to the highs of the day at 3.486. 

Duration ailments in treasuries usually doesn't bode well for production MBS coupons such as 4.0's and 4.5's.  And although we are still within the range represented by the red lines in the previous post, we are near the bottom of that range.

Here is the current price breakdown.