E-3-23, Acronyms and Glossary of Defined Terms: W (11/10/2019)

The weighted average of the net mortgage interest rates of the mortgages in a weighted-average ARM MBS pool, which is the rate at which interest will accrue on the MBS.

A method of creating an ARM MBS pool that results in interest accruals to the security holder at the weighted average of the accrual rates of the mortgages in the pool.

The submission of a whole mortgage or a participation pool mortgage to Fannie Mae for purchase as a portfolio mortgage. Fannie Mae pays the mortgage seller cash for its mortgage delivery, rather than swapping the mortgage for a mortgage-backed security.