Private mortgage insurers saw spirited competition in 2015, both within their own ranks and against a surge in government-insured products, especially the FHA program, according to a new market analysis and ranking by Inside Mortgage Finance. Private MIs wrote coverage on an estimated $219.64 billion in mortgage originations last year, a 23.2 percent increase from 2014. The estimate includes $315 million in coverage on Home Affordable Refinance Program loans provided by the three MIs in run-off mode. The private MI business surge included...[Includes three data tables]