Conventional and Government (FHA and VA) lenders set their rates based on the pricing of Mortgage-Backed Securities (MBS) which are traded in real time, all day in the bond market. This means rates or loan fees (mortgage pricing) moves throughout the day, being affected by a variety of economic or political events. When MBS pricing goes up, mortgage rates or pricing generally goes down. When they fall, mortgage pricing goes up. Tracking these securities real-time is critical. For more information about the rate market, contact me directly. I’m among few mortgage professionals who have access to live trading screens during market hours.