Rising interest rates, falling prepayment speeds and a strengthening secondary market in mortgage servicing rights combined to push MSR valuations significantly higher during the second quarter, according to a new Inside Mortgage Trends analysis of call report data. Banks and savings institutions serviced a total of $4.869 trillion of home mortgages for other investors as of the end of the second quarter. Collectively, they estimated a fair market value of $48.70 billion for their MSR assets ... [Includes two data charts]