Commercial banks and thrifts earned $3.99 billion from their mortgage-banking operations during the first quarter of 2015, according to a new ranking and analysis by Inside Mortgage Trends. Mortgage-banking income was up 12.7 percent from the previous quarter and 19.0 percent ahead of the pace set in the first three months of 2014. Early 2015 was no record-setter, by any means, but profits were well below the levels reached in the middle of last year. The call-report data do not separate...[Includes one data table]