One of the most speculative stock bets out there – buying shares in Fannie Mae and Freddie Mac – is looking more like a sure thing these days, thanks to the recent pick of Mick Mulvaney, R-SC, to head the Office of Management and Budget in the new Trump administration. At least that’s how some industry officials and market watchers view it, including the Washington-based research firm Cowen & Co. In a report issued earlier this week, Cowen analyst Jaret Seiberg called the choice of Mulvaney for OMB chief “the most bullish sign yet that the Donald Trump administration will favor a solution to housing finance reform that includes a continued role for Fannie and Freddie.”