Originations of non-agency jumbo mortgages declined in two consecutive quarters to end 2016, according to a new ranking and analysis by Inside Nonconforming Markets. And while jumbo production was up last year compared with 2016, market share for the sector declined during that time. In recent years, jumbo originations and market share have been on a strong upward trend, though the momentum stalled in the second half of 2016. An estimated ... [Includes one data chart]