Last year’s bonanza in mortgage origination activity also provided lenders with a significant boost from their captive reinsurance activities. A new Inside Mortgage Profitability analysis of private MI disclosure statements reveals that the 20 largest lender captive reinsurance entities collected $551.5 million in premiums from the seven MIs. That was up 23.2 percent from the $447.6 million these same lenders captured in 2002.