Selling Guide

Published June 5, 2018

C3-5-08: Commingling ARMs in MBS (02/23/2016)

This topic provides information on commingling ARMs, including:

ARM Loan Types Lenders May Commingle in the Same Pool

ARMs originated under the same ARM plan may have original terms up to 30 years and may be commingled in the same ARM pool.

ARM Loan Types Lenders May Not Commingle in the Same Pool

ARMs originated under different ARM plans cannot be commingled in the same pool. In certain cases, however, lenders may be permitted to pool seasoned ARMs in ARM plans with shorter initial fixed-rate periods. Interested lenders should contact their lead Fannie Mae regional office to determine what flexibility may be available for a specific situation.

ARMs originated under a single ARM plan, but with different post-conversion disposition options (market rate option or take-out option) cannot be included in the same pool.

Related Announcements

The table below provides references to the Announcements that have been issued that are related to this topic.

Announcements Issue Date
Announcement SEL-2016–02 February 23, 2016