TransUnion Study Identifies Framework for Managing HELOC Risk; Up to $79B of $474B in HELOCs May Be at Elevated Risk of Default CHICAGO, IL--(Marketwired - Aug 7, 2014) - Nearly 16 million U.S. consumers held approximately $474 billion in balances on home equity lines of credit (HELOCs) as of December 2013, according to a...