California remained the mother lode of mortgage insurance business in the first quarter of 2017, but a number of other major states had higher concentrations of insured business, according to a new Inside Mortgage Trends analysis. Some $12.50 billion of agency mortgages securitized during the first quarter with some form of primary MI were tied to Golden State properties, representing 58.9 percent of California’s total agency purchase-mortgage ... [Includes one data chart]