Overall, Tuesday or Thursday are the best candidates for most active day for rates due to the importance of the data coming those days. But the truth is, we could see rates become volatile any day, especially when stocks are in the forefront. Bonds have had nice run recently that have pushed yields and mortgage rates lower. It has been enough of a move that we could see some pressure build before making another leg downward. That is speculation of course, but it would be prudent to keep an eye on the markets if still floating an interest rate and closing in the near future. This is because risk versus reward of floating, when closing soon, has tilted more towards risky in my opinion.