In both 2005 and 2006, $1 trillion in unconventional mortgages were issued, compared with $100 billion in 2001. Fannie Mae and Freddie Mac were scrambling to keep up, purchasing $300 billion in nonagency securitized mortgages to hold in their own portfolios. The GSEs were driven. They were not the drivers. They were competing with upstarts like Countrywide, which in 2006 was responsible for originating 20 percent of all mortgages in the United States.
