Radian provides mortgage insurance and services to the real estate and mortgage finance industries. Radian's mortgage insurance provides coverage to lending institutions throughout the United States. Its services include analytics and consulting for buyers and sellers of, and investors in, mortgage- and real estate-related loans and securities and other asset-backed securities. Insurance premiums account for more than three fourths of the company's revenue. Services revenue and investment income are the other principal sources of revenue. Radian stopped writing new international business in 2008. Its only remaining mortgage exposure outside of the United States is in Hong Kong, where the company continues to wind down its business.