This is more of a heads up than an emergent alert. MBS are still 1 tick (.03) higher on the day and the Treasury market suggest MBS selling may be a bit overdone, but 5.0 coupons are down 5-6 ticks (.16-.19) from the AM highs. Those highs coincide with some early lenders' rate sheet print times. As such, they could technically justify a negative reprice.