Originations of non-agency jumbo mortgages in the first quarter of 2017 were down by 29.0 percent from the previous quarter, according to a new ranking and analysis by Inside Nonconforming Markets. A decline in refinance activity contributed to the sharp drop in jumbo funding. An estimated $71.00 billion of non-agency jumbos were originated during the quarter. Not only did volume fall significantly from the fourth quarter of 2016, production was ... [Includes one data chart]