Freddie Mac is offering $1.0 billion of its non-agency MBS holdings for sale, according to a spokesman for the government-sponsored enterprise, part of efforts to meet requirements set by the Federal Housing Finance Agency. Fannie Mae also plans asset sales of some sort, but wouldn’t commit to selling its non-agency MBS holdings. Freddie held $70.28 billion in non-agency MBS at the end of the first quarter of 2013 and Fannie held $31.22 billion. The GSEs purchased the non-agency MBS before 2009 and have allowed the holdings to run off ever since. The FHFA recently required...