Yesterday mortgage-backed securities had their least volatile day since last week's " Black Wednesday " event. MBS traded in a tight range most of the session, closing slightly higher than the previous day's "going out" marks. With all the volatility recently, I have to say it was nice to have a calm day, especially since we ended up in the green. Some of that volatility has returned to the market today but lender's rate sheets still look very similar to yesterdays...