Shares of the secondary mortgage market giant have more than tripled this year amid growing optimism that the Trump administration would address long-standing questions surrounding the company’s government conservatorship.Fannie Mae has been under federal conservatorship since 2008. Both Fannie Mae and Freddie Mac needed a government bailout in 2008 after the housing bubble burst, as they were exposed to risky loans and securities that included subprime mortgages. The companies suffered billions in losses b ...