Issuance of non-agency jumbo mortgage-backed securities increased by 9.9 percent in the second quarter of 2013 compared with the elevated levels seen in the previous quarter, according to the Inside Mortgage Finance MBS Database. However, rising interest rates and a reduction in refinance originations could slow issuance going forward, according to industry analysts. A total of $4.34 billion in non-agency jumbo MBS was issued in the second quarter of 2013, with deals from five issuers ... [Includes one data chart]