Although a number of major correspondent lenders pulled back from that market in 2013, a hefty 29.1 percent of home mortgages were funded by one company and then sold, servicing released, to a larger aggregator and, typically, securitized by Fannie Mae, Freddie Mac or Ginnie Mae. That means total production figures that include correspondent lending significantly overstate the concentration in the mortgage origination sphere. Including its correspondent production, for example, Wells Fargo put its fingerprint on 27.7 percent of new mortgages originated in 2012. But the company’s direct originations – loans generated through its retail channel and funded through mortgage brokers – represented...