The Federal Home Loan Mortgage Corporation is a private corporation chartered by congress in 1970 to make funds from the capital markets available for home financing. It does this by operating a secondary market for home mortgage loans, buying such mortgages from original lenders and packages them into securities that are subsequently sold to investors in the stock market backed by those mortgages. It is popularly known as freddie mac. Freddie Mac aims to foster liquidity, stability, and affordability in the U.S. mortgage market to give Americans the opportunity to afford housing.