Fannie Mae is a government-sponsored enterprise (GSE) that provides financing for mortgage loans in the United States. The company purchases mortgages from lenders and packages them into securities that are sold to investors. Fannie Mae’s mission is to expand access to affordable mortgage credit for qualified borrowers. Fannie Mae is a large and complex organization with a significant impact on the U.S. housing market. The company is regulated by the Federal Housing Finance Agency (FHFA) and is subject to a number of other federal regulations.