The outstanding balance of non-agency mortgage-backed securities increased in February on a monthly basis, according to a Standard & Poor’s analysis of remittance data. The increase was a rare occurrence as non-agency MBS outstanding has regularly declined since 2009. Of the more than 20,000 jumbo mortgages Redwood Trust has acquired as part of its jumbo conduit activities since 2010, only 11 have gone 60-plus days delinquent ... [Includes five briefs]