FACTBOX: Key facts on Fannie Mae and Freddie Mac

(Reuters) - The U.S. Congress has passed a housing bill aimed at rescuing the ailing housing market and shoring up Fannie Mae and Freddie Mac, enabling to two housing finance titans to support the U.S. home market.

Here are some key facts about the two companies:

FANNIE MAE:

-- Formal name: Federal National Mortgage Association

-- Created in 1938 by Congress as part of a campaign aimed at expanding the secondary U.S. mortgage market and increasing home ownership and rental housing.

-- Annual revenue: $43.71 billion (December 31, 2007)

-- CEO: Daniel H. Mudd

-- Shares touched a 52-week high of $70.57 on August 22, 2007 and fell as low as $6.68 on July 11, but closed at $11.55 on Friday.

FREDDIE MAC:

-- Formal name: Federal Home Loan Mortgage Corp.

-- Created in 1970 by Congress as part of a campaign aimed at expanding the secondary U.S. mortgage market and increasing home ownership and rental housing

-- Annual revenue: $42.91 billion (December 31, 2007)

-- Common stock outstanding: 646.27 million (January 31, 2008)

-- CEO: Richard F. Syron.

-- Shares touched a 52-week high of $66.65 on August 17, 2007 and fell as low as $3.89 on July 11, but closed at $8.27 on Friday.

WHAT DO THE COMPANIES DO?