MBS buyers have left the building for the day--partly due to the reversal in Treasuries and partly for their own reasons (more on that in the Huddle video).
2.0 coupons are down 2 ticks (.06) on the day and as much as a quarter point off the highs of the day. As such, a few lenders may be considering negative reprices. The best use of this info, however, is to treat it as a lock cue if you were already planning on locking today and just waiting for a positive reprice.