Bank holdings of home-equity loans continue to decline, with mixed performance trends. Regulators warn that home-equity lines of credit originated before the financial crisis are a particular concern as the loans are set to reach their amortization periods. Banks and thrifts held $1.05 trillion in HELOCs, HELOC commitments and closed-end seconds as of the end of the second quarter of 2013, according to the Inside Mortgage Finance Bank Mortgage Database. The holdings declined by 1.9 percent ... [Includes one data chart]