A jumbo mortgage-backed security issued this week is the first non-agency MBS backed by recently originated mortgages issued in the past two years. The deal could jumpstart jumbo securitization and serve as a model for future nonconforming MBS. Sequoia Mortgage Trust 2010-H1 was issued by Redwood Trust. The issuance is backed by $237.8 million... [Includes one chart and one graph]