Nine publicly traded mortgage companies posted a combined $52.22 million in mortgage banking earnings for the third quarter of 2017, according to a new analysis by Inside Mortgage Trends. The group’s third-quarter results represented a healthy 86.4 percent improvement over the paltry $28.02 million they earned from their core businesses during the April-June cycle. But the aggregate figures don’t begin to describe the state of most of these nonbank ... [Includes one data chart]