The profit picture varied widely among the shrinking number of publicly-traded nonbank mortgage lenders during the third quarter. A new Inside Mortgage Trends analysis reveals that seven companies generated a total of $235.45 million from their mortgage banking businesses during the third quarter. That was up 14.8 percent from the previous period largely because New Residential Mortgage increased its profits and Impac cut its losses. An eighth nonbank ... [Includes one data chart]