ROLE OF CREDIT/MORTGAGE INSURANCE 
MORTGAGE GUARANTY INSURANCE

Private mortgage insurance (PMI), known as mortgage guaranty insurance, guarantees that, in the event of a default, the insurer will pay the mortgage lender for any loss resulting from a property foreclosure up to a specific amount. PMI, which is purchased by the borrower but protects the lender, is sometimes confused with mortgage insurance, a life insurance product that pays off the mortgage if the borrower dies before the loan is repaid. Banks generally require PMI for all borrowers with down payments of less than 20 percent.
MORTGAGE GUARANTY INSURANCE, 2003-2007 (1)

($000)



2003

2004

2005

2006

2007
Net premiums written  $3,482,519$3,411,062$3,480,174$3,541,558$4,180,226
Net premiums earned  3,385,4143,476,0193,454,2323,584,2554,019,423
Losses  870,8611,336,6051,251,5541,461,2435,412,163
Expenses  787,649820,268842,483858,599807,643
Underwriting income/loss1,375,4271,319,1461,360,1951,264,413-2,200,384
Loss ratio  25.72%38.45%36.23%40.77%134.65%
Expense ratio  22.6224.0524.2124.2419.32
Combined ratio  48.3462.5060.4465.01153.97
(1) As reported by members of the Mortgage Insurance Companies of America, representing six private mortgage insurance companies in 2003-2006 and five in 2007.

Source: Mortgage Insurance Companies of America.