Retail mortgage originations accounted for 61.0 percent of the single-family home loans securitized by Fannie Mae and Freddie Mac during the second quarter of 2015, according to a new Inside Mortgage Trends analysis. That was up from a 58.4 percent retail share during the first three months of the year, and it marked the highest retail share of new Fannie/Freddie business since the … [includes two data charts]