Federal National Mortgage Association provides liquidity and stability support services for the mortgage market in the United States. It securitizes mortgage loans originated by lenders into Fannie Mae mortgage-backed securities (Fannie Mae MBS). The company operates through two segments, Single-Family and Multifamily. The Single-Family segment securitizes and purchases single-family fixed-rate or adjustable-rate, first-lien mortgage loans, or mortgage-related securities backed by these loans; and loans that are insured by Federal Housing Administration, loans guaranteed by the Department of Veterans Affairs and Rural Development Housing and Community Facilities Program of the U.S. Department of Agriculture, manufactured housing loans, and other mortgage-related securities. This segment also provides early funding, MBS trading, and single-family mortgage services. The Multifamily segment securitizes multifamily mortgage loans into Fannie Mae MBS; purchases multifamily mortgage loans; and provides credit enhancement for bonds issued by state and local housing finance authorities to finance multifamily housing. This segment also offers delegated underwriting and servicing, and multifamily mortgage servicing services. The company serves mortgage banking companies, savings and loan associations, savings banks, commercial banks, credit unions, community banks, specialty servicers, insurance companies, and state and local housing finance agencies.