How will the Desk adjust for any unexpected deviations between anticipated and actual longer-term Treasury purchases over a given monthly period?
An adjustment for any deviation will be made by modifying the following months Treasury purchases. For example, if MBS principal payments were $1 billion larger (smaller) than expected, or if actual Treasury purchases were $1 billion smaller (larger) than previously announced, the Desk would increase (decrease) the following months anticipated Treasury purchases by $1 billion.
