Freddie Mac had a difficult time keeping up with Fannie Mae and Ginnie Mae in mortgage pass-through production last year, but the government-sponsored enterprise continued to out-produce the other agencies in structured mortgage securitizations. Freddie issued a total of $154.7 billion in single-family real estate mortgage investment conduits in 2011, which represented 41.0 percent of the agency REMIC market. While the overall market was down 17.8 percent from the previous year, Freddie increased its REMIC issuance by 24.7 percent. Fannie managed a modest 1.6 percent increase from the...