Bank and thrift holdings of home-equity loans continue to decline, particularly holdings of closed-end second liens. Even though performance on the loans currently remains strong, industry analysts warn that these assets could cause major losses. Banks and thrifts held $1.18 trillion in home-equity lines of credit, unused HELOC commitments and closed-end seconds at the end of 2011, according to the Inside Mortgage Finance Bank Mortgage Database. That was down 1.5 percent from the third quarter of 2011 and down 8.8 percent from the end of 2010 ... [Includes one data chart]