The Federal Home Loan Banks saw a jump in net income during the second quarter that was almost entirely due to earnings generated by the GSEs’ mortgage holdings. According to data released this week by the FHLBanks’ Office of Finance, the 12 FHLBanks took in $530 million during the three months ending June 30. That represents a 17.5 percent increase over the $451 million recorded during the same period last year, and a 38.7