Fannie Mae and Freddie Mac securitized $43.28 billion of single-family loans covered by private mortgage insurance during the first quarter of 2015, according to a new Inside Mortgage Finance analysis and ranking. First-quarter PMI business was down 7.7 percent from the fourth quarter of 2014, although overall mortgage-backed securities issuance by the two government-sponsored enterprises was up 5.9 percent over the same period. All of the increase ... [Includes two data charts]