Government National Mortgage
Association
The Government National Mortgage Association (GNMA, also
known as Ginnie Mae) was created by the United States
Federal Government through a 1968 partition of the Federal
National Mortgage Association. The GNMA is a wholly owned
corporation within the United States ' Department of Housing
and Urban Development (HUD). Its main purpose is to provide
financial assistance to low- to moderate-income homebuyers,
by promoting mortgage credit.
Business
The GNMA, along with the other so-called Government Sponsored
Enterprises (GSEs), sell mortgages in the secondary market.
This lets investors put money in the mortgage securities
market, which increases the price of the mortgage bonds
and lowers their rates, which in turn lowers the rates
on mortgages in the primary market so that more people
are able to buy and mortgage a home. The GNMA does this
by guaranteeing the timely payment of the principal and
interest payments on mortgage-backed securities.
There are several types of GNMA securities that are active
in the institutional fixed income markets:
* GNMA I securities. A GNMA I (the "I" is a
Roman numeral one) represents a pool of mortgages all
issued by one issuer, all with the same interest rate,
and all issued at around the same time (within a few months).
* GNMA II securities. A GNMA II is similar to a GNMA
I, except that the mortgages can have a range of interest
rates, and can include mortgages issued by more than one
issuer. In this case, the service fees (see below) vary,
so that the new interest rate being paid to the investor
from each mortgage is the same.
* GNMA "REMIC" securities. A REMIC (Real Estate
Mortgage Investment Conduit) is an additional level of
securitization. The collateral pool for a REMIC consists
not of mortgages, but of mortgage-backed securities (such
as GNMA I, GNMA II, or previously issued REMICs).
Pools are created by lenders. For example, a mortgage
lender may sign up 100 home mortgages in which each buyer
agreed to pay a fixed interest rate of 6% for a 30-year
term. The lender (who must be an approved issuer of GNMA
certificates) obtains a guarantee from the GNMA and then
sells the entire pool of mortgages to a bond dealer in
the form of a "GNMA certificate". The bond dealer
then sells GNMA mortgage-backed securities, paying 5.5%
in this case, and backed by these mortgages, to investors.
The original lender continues to collect payments from
the home buyers, and forwards the money to a paying agent
who pays the holders of the bonds. As these payments come
in, the paying agent pays the principal which the home
owners pay (or the amount that they are scheduled to pay,
if some home owners fail to make the scheduled payment),
and the 5.5% bond coupon payments to the investors. The
difference between the 6% interest rate paid by the home
owner and the 5.5% interest rate received by the investors
consists of two components. Part of it is a guarantee
fee (which GNMA gets) and part is a "servicing"
fee, meaning a fee for collecting the monthly payments
and dealing with the homeowner. If a home buyer defaults
on payments, GNMA pays the bond coupon, as well as the
scheduled principal payment each month, until the property
is foreclosed. If (as is often the case) there is a shortfall
(meaning a loss) after a foreclosure, GNMA still makes
a full payment to the investor. If a home buyer prematurely
pays off all or part of his loan, that portion of the
bond is retired, or "called", the investor is
paid accordingly, and no longer earns interest on that
proportion of his bond.
The arrangement seemingly benefits everyone involved:
* The mortgage lender has offloaded all risk to the GNMA,
and has very quickly received a reimbursement of the money
lent to home buyers from the bond dealer, and can immediately
use this money to offer another pool of loans to the public.
* The home-buying public benefits from lower mortgage
rates caused by the large amount of lender competition,
in turn caused by a large supply of lenders, which is
enabled by this quick reimbursement of money.
* The lower-income home-buying public benefits from a
greater willingness by lenders to risk making loans to
that group.
* The investors, whose money makes all of this work in
the first place, benefit from the "full faith and
credit" of the United States government; GNMA bonds
are backed by the pool of mortgages, and even if massive
defaults were to occur, the U.S. government would make
good on all payments. GNMA bonds also feature higher returns
than other U.S. government issued bonds.
GNMA bonds themselves are considered risk-free from the
standpoint of total default, but they are subject to risks
that all other bonds have, including interest rate risk.
They also have the undesirable attribute of being callable
every month, meaning that, unlike other bonds, all or
part of a GNMA bond might suddenly "mature"
next month, if all the homeowners decided to pay off or
refinance their mortgages. This does not involve a risk
of loss to the investor, but rather a premature payment
of the principal, and now the investor has to go look
for another investment for his money. This is called prepayment
risk. As a practical matter, many institutional investors
find it very inconvenient to own bonds which get small
principal payments every month.
The GNMA said in its 2003 annual report that over its
history, it had guaranteed securities on the mortgages
for over 30 million homes totaling over $2 trillion. It
guaranteed $215.8 billion in these securities for the
purchase or refinance of 2.4 million homes in 2003.