Treasuries have been under some pressure since the 9:30am NYSE Open, with 10yr yields moving up from 2.696% into slightly negative territory at 2.717%
MBS are still 1 tick higher on the day at 101-30 (101.94). Given that the highs of the day weren't even an eighth of a point higher, negative reprice risk is limited for now, and wouldn't be a factor unless prices dipped below 101-28 (101.875).