The non-agency share of jumbo mortgage originations – those exceeding $417,000 – has suffered with the continued presence of Fannie Mae, Freddie Mac and the FHA in the jumbo market. Non-agency originations accounted for 40.2 percent of the $37.27 billion in jumbo production in the first quarter of 2010, according to a new Inside Nonconforming Markets analysis... [Includes one graph]