Yield curve steepenings are also somewhat normal during periods of high long-end corporate supply and Treasury supply as a result of rate-lock hedging needs. Don't forget we had massive corporate supply the last two weeks, especially last week, and have month-end TIPS supply along with the May refunding in plain view. Furthermore, the CMBS market has been quiet, would imagine those deals will pick up again shortly and also weigh upon the market. That being said, based on seasonals, dealers often like to come out of the Refundings with flatteners on, but this may also depend on where the Fed is in their cycle.