Mortgage REITs (MORT) catch the eye of D.C., with the Financial Stability Oversight Council reportedly set to cite the industry as a potential source of market vulnerability. The companies have seen assets quadruple to over $400B since 2009, but Annaly (NLY) CEO Wellington Denahan notes their capital bases have risen as well. A Two Harbors (TWO) presentation (page 8) shows mREITs are relatively small players in the MBS market. Maybe the Fed and the GSEs just don't like the competition. Annaly and American Capital (AGNC) are the 2 biggest mREITs, with Two Harbors a distant 3rd.