The $1.89 billion non-agency mortgage-backed security issued by JPMorgan Chase Bank in April looked promising for boosters of the non-agency MBS market. However, analysts at one of the firms that rated the deal suggest that a number of factors could limit other banks from following Chase’s lead. “Some banks are likely hesitant to securitize loan portfolios because securitizations could reduce return on equity at a time when banks are already struggling to meet ...