NMI Holdings is a private mortgage insurance (PMI) provider focused on the U.S. residential housing market, primarily insuring conventional conforming loans for borrowers with less than 20% down payments. The company competes with established players like MGIC, Radian, and Essent in a concentrated industry where profitability depends on underwriting discipline, housing price appreciation, and mortgage origination volumes. As a pure-play PMI writer with no legacy book issues, NMIH benefits from post-crisis regulatory capital requirements and GSE counterparty approvals that create barriers to entry.
Financial ServicesMortgage Insurancehigh - Fixed costs include technology infrastructure, compliance, actuarial staff, and GSE relationship management, while variable costs (loss reserves, commissions) scale with premium volume. Once past breakeven scale (achieved by NMIH around 2016-2017), incremental policies generate substantial margin expansion. The 70.8% operating margin indicates the company has achieved efficient scale, with new business adding primarily to loss reserves rather than overhead.
