Through the first nine months of 2014, Freddie Mac securitized $7.0 billion of re-performing and modified single-family loans, a figure that towers over its crosstown rival Fannie Mae. Since 2011, Freddie has issued roughly $12 billion in securities backed by re-performing loans. So what’s Fannie’s problem in this area? That’s hard to say. A spokesman for the government-owned mortgage giant said the company has yet to undertake any securitizations of formerly delinquent loans, and isn’t sure if or when it will. Then again, Fannie – unlike Freddie – has...