Jumbo mortgages accounted for 20.3 percent of total first-lien originations in the first quarter of 2016, according to estimates by Inside Nonconforming Markets. While jumbo production declined slightly in the first quarter compared with the previous period, overall originations posted a steeper drop. An estimated $77.0 billion in jumbos were originated in the first quarter of 2016, down 1.3 percent from the previous quarter and up by 6.9 percent compared with ... [Includes one data chart]