Nonbanks continued to grab a larger share of the mortgage servicing business during the fourth quarter of 2016, and the rapid emergence of investor servicers – firms that buy mortgage-servicing rights while tapping other firms to actually administer the pools – promises to bring more change. A new Inside Mortgage Finance ranking and analysis shows that nonbanks that ranked among the top 50 servicers increased their holdings by 6.9 percent during the fourth quarter. Depository institutions among the top 50 servicers reduced their holdings by 1.2 percent during the same period. With Citi, the sixth-largest servicer at the end of 2016, now in the process of selling a large chunk of its MSR assets – in some cases to investors that will use subservicers – the demographics of the industry will change...[Includes two data tables]