A GNMA pass-through certificate backed by fixed rate mortgages with a 15 year maturity . GNMA Midget is a dealer term and is not used by GNMA in the formal description of its programs.
GNMA MIDGET
Meaning of GNMA MIDGET in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012