10yr yields are still down 5bps on the day, but are now up in line with the AM highs at 3.942.
5.5 UMBS are still nearly an eighth of a point higher on the day, but have fallen an eighth from the AM highs. Lenders who released rates around 9:30 were looking at prices near the highs and are thus potentially considering a negative reprice. That said, this level of movement is typically only a concern for the jumpiest, most aggressive lenders.