Origination of interest-only mortgages declined in 2014 after the rule took effect that made them ineligible for qualified-mortgage status, but the product is far from dead and could see a rebound in 2015. A group of 15 lenders originated a total of $21.59 billion in IOs through three quarters in 2014, according to a new Inside Nonconforming Markets analysis and ranking. That was down 28.0 percent from the same period in 2013. IO lending slowed ... [Includes one data chart]