The Federal Deposit Insurance Corp. is revising its definition of subprime mortgages in an effort to better compare bank portfolios, according to analysts that worked on the rule proposed by the FDIC in March. Brenda Bruno, a senior financial analyst at the FDIC, said the regulator is looking to classify “the worst” of subprime mortgages as higher-risk. “We are looking at those assets that are really sort of the ‘bottom of the barrel’ type assets,” she said last week during a webinar sponsored by VantageScore Solutions ...