For years, Wells Fargo and JPMorgan Chase were the largest originators of jumbo mortgages.

Thompson was the sole witness at a hearing by the House Financial Services Committee.

There's some competition between FHA and private mortgage insurance companies, though much of their business is focused on different sets of borrowers.

In March, FHFA proposed adjustments to capital requirements for commingled securities held by Fannie Mae and Freddie Mac.

The GSE says the addition to its income assessment tool will expand access to credit.

The reason the loans are considered nonprime: a lack of income and employment verification.

Banks reduced their appetite for jumbos in the first quarter.

If the U.S. defaults on its debts, Ginnie could still guarantee MBS and investors would still receive proceeds from the securities.

Originations remained a money-losing venture for many lenders in the first quarter, though the losses weren't quite as bad.

Rising interest rates made it more difficult for loan applicants to meet DTI ratio requirements.