Goldman Sachs teamed with EverBank Financial to issue a unique jumbo mortgage-backed security last week, its first jumbo MBS since the financial crisis. The $282.80 million GS Mortgage-Backed Securities Trust 2014-EB1 received AAA ratings with credit enhancement of 8.35 percent on the senior tranche. All of the loans in the deal are hybrid adjustable-rate mortgages originated by EverBank. Some 7.9 percent of the ARMs have a 10-year interest-only period. The deal marked a shift ...