For most lenders, unless you've already seen a positive reprice, this will be more of a heads-up than a true alert. 

MBS are still up 2 ticks (.06) on the day, but down 5 ticks (.16) from the highs. Lenders who repriced for the better so far today are seeing about an eighth of a point of weakness. Only the jumpiest lenders would be considering negative reprices.

That said, the trend is negative at the moment and other lenders could be at risk if we lose a few more ticks.