The retail channel dominates production among prominent jumbo lenders and gained some market share through two quarters this year, according to a new analysis by Inside Nonconforming Markets. The retail channel accounted for 77.5 percent of jumbo originations among a group of lenders that had a total of $108.00 billion in jumbo volume in the first half of 2017. The retail share was 76.6 percent over the same period in 2016. The correspondent ... [Includes one data chart]