How are Federal Reserve’s agency MBS holdings reported?
Balance sheet items related to the agency MBS purchase program are reported after settlement occurs on the H.4.1. statistical release titled “Factors Affecting Reserve Balances of Depository Institutions and Condition Statement of Federal Reserve Banks.” Securities acquired in dollar roll or coupon swap transactions are also included with other holdings of agency MBS. Trade settlements may occur well after trade execution due to agency MBS settlement conventions. This report also includes information on total outstanding commitments to buy and sell MBS in a supplemental table.