Originations of adjustable-rate mortgages increased by 9.4 percent in the third quarter of 2016, according to a new ranking and analysis by Inside Nonconforming Markets. With an increase to interest rates on mortgages seen this quarter and even higher rates expected, ARMs appear likely to gain market share. An estimated $58.0 billion in ARMs were originated in the third quarter, accounting for 9.9 percent of first-lien originations, according to Inside Mortgage Finance ... [Includes one data chart]