Only fixed-rate mortgages were included in prime non-agency mortgage-backed securities issued in the second quarter of 2017, according to an analysis by Inside Nonconforming Markets. It was the third quarterly interval since the first quarter of 2016 that adjustable-rate mortgages and loans with interest-only features were excluded from prime/jumbo MBS. And in the first quarter of 2017, ARMs accounted for less than 1.0 percent of total prime non-agency ... [Includes two data charts]