Mortgage bankers booked hefty earnings on their loan origination and secondary marketing during the second quarter, but servicing hedges deepened, according to the latest Mortgage Bankers Association performance report. The average company participating in the survey reported pretax income of $2.913 million during the second quarter, nearly quadruple the average for the previous period. That lifted year-to-date pretax income to $3.665 million, still off 16.7 percent ...