Data regarding subprime mortgages outstanding, delinquencies and loss mitigation activity are getting more difficult to track as the market has essentially been in runoff mode since 2009.Few servicers report on their subprime portfolios, a key delinquency data series was recently discontinued and details on loan modifications are lagging. Some $247.0 billion of subprime mortgages were outstanding as of the end of the first quarter of 2017 ... [Includes one data chart]