The flow of home loans covered by private mortgage insurance into new Fannie Mae and Freddie Mac mortgage-backed securities fell by 11.5 percent during the first quarter of 2016, according to a new Inside Mortgage Finance analysis and ranking. That decline mirrored the 11.6 percent drop in purchase-mortgage securitization from the fourth quarter by the two government-sponsored enterprises. A slight uptick in refinance activity partly offset the slide in purchase-mortgage business. Private MIs do...[Includes two data tables]