Fannie Mae headquarters stands in Washington, D.C., U.S., on [Getty Images]

UNITED STATES - SEPTEMBER 08: Fannie Mae headquarters stands in Washington, D.C., U.S., on Monday, Sept. 7, 2009. Fannie Mae and Freddie Mac, the mortgage-finance companies seized by U.S. regulators a year ago, avoided delisting on the New York Stock Exchange after their shares more than tripled last month. (Photo by Joshua Roberts/Bloomberg via Getty Images)

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