The biggest originator of jumbo mortgages is redeveloping a platform to issue non-agency mortgage-backed securities, according to Larry Rubenstein, managing counsel at Wells Fargo. However, don’t expect jumbo MBS from Wells anytime soon as the bank has plenty of portfolio capacity. Wells hasn’t issued a non-agency jumbo MBS since 2008, when it was the top issuer of such securities, according to the Inside Mortgage Finance MBS Database. Speaking at the ABS East conference sponsored by Information Management Network ...