The volume of home-equity loans held in portfolio at banks and thrifts declined in the third quarter of 2015, according to a new ranking from the Inside Mortgage Finance Bank Mortgage Database.Banks and thrifts held a total of $952.10 million in home-equity lines of credit, HELOC commitments and closed-end second liens at the end of the third quarter, down 1.1 percent compared with the previous quarter. Wells Fargo remained the top bank ... [Includes one data chart]