Institutional investors are beginning to have major doubts about certain mortgage stocks, reducing their positions in companies such as PHH Corp. and Ocwen Financial as they struggle to present convincing evidence that better days are ahead – especially with 2016 just months away. Ocwen, in particular, has been savaged by investors over the past 18 months, its share price falling from an all-time high of $60 to $5.66. This past summer, Ocwen’s share price stabilized somewhat before getting clobbered early this week after disclosing that it expects to post a loss for all of 2015. For many investors it has...