The correspondent channel has continued to gain market share of jumbo mortgages as production of such loans has shifted to purchase financing, according to a new analysis by Inside Nonconforming Markets. Correspondents accounted for 21.7 percent of third-quarter jumbo mortgages originated by lenders that report data to Inside Mortgage Finance. The sector’s market share has increased for three consecutive quarters. Correspondents accounted... [Includes one data chart]