A federal corporation created by Congress that purchases conventional mortgages in the secondary mortgage market from insured depository institutions and HUD-approved mortgage bankers. It sells participation sales certificates secured by pools of conventional mortgage loans, their principal, and interest guaranteed by the federal government through the FHLMC. It also sells Government National Mortgage Association (GNMA, or “Ginnie Mae”) bonds to raise funds to finance the purchase of mortgages. Popularly known as “Freddie Mac”.