Issuance from new participants in the non-agency jumbo mortgage-backed security market wasn’t enough to offset reduced activity by Redwood Trust and others in the third quarter of 2013, according to a new ranking and analysis by Inside Nonconforming Markets. Issuance of jumbo MBS slowed particularly in September, as Shellpoint Partners delayed its planned security and PennyMac Corp. made changes to attract investors. A total of $3.94 billion in non-agency jumbo MBS was issued in the third quarter, a 9.1 percent decline from the previous quarter and about level with the issuance seen in the first three months of 2013. Redwood and Credit Suisse, the jumbo MBS sector’s two biggest players, slowed...[Includes one data chart]