Higher interest rates and slower prepayments made the business of servicing mortgage loans for other investors much easier to handle in 2005, according to an Inside Mortgage Profitability analysis of thrift financial reports. The 40 largest thrifts that service mortgages for other investors, typically because of a securitization, reported $1.038 billion in net income from these operations through the first nine months of 2005. … [One data table included]