Net Interest Margin Security(redirected from Net interest margin securities)
Also found in: Wikipedia.
Net Interest Margin Security
A security based on the value of excess cash flows received by a mortgage-backed security. That is, if an MBS receives more cash flows than are needed to make coupon and principal payments to holders, it may place these cash flows into a different account and issue NIMS entitling the holders to these cash flows.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved