Originations of non-agency jumbo mortgages through two quarters in 2012 were 35.8 percent above the pace set in 2011, according to affiliated publication Inside Mortgage Finance. Almost all of the major jumbo lenders are increasing production and the vast majority of originations continue to be held in portfolio. An estimated $37.0 billion in non-agency jumbos were originated during the second quarter of 2012, up 5.7 percent from the previous quarter and up 60.9 percent from the ... [Includes one data chart]