Recent Developments in Mortgage Finance

"This shift in mortgage finance has had a profound impact on the types of borrowers receiving loans. In the fourth quarter of 2006, approximately 10% of originations in our sample were labeled by originators as “subprime.” For the entire universe of mortgages, subprime loans are estimated to have made up about 20% of originations in 2006. By the first quarter of 2008, the subprime share was effectively zero. Since then, increased FHA lending—identified here by Ginnie Mae’s share—has revived this segment of the market. After plummeting in early 2008, the share of borrowers with FICO credit scores lower than 660 has returned to just higher than 20%, the same share as when subprime securitization peaked in 2006."