This is more of a heads-up alert for the earlier, jumpier lenders (especially those who priced around 9:30am).  Since that time, MBS prices are down an eighth of a point. This is the earliest threshold for the jumpiest lenders to consider negative reprices.

10yr yields are up 3bps at 4.128--still very much within the prevailing range.  MBS are down only 3 ticks (.09) on the day.