Residential MBS production continued to gain speed in the second quarter of 2015 while non-mortgage securitization remained strong, according to a new Inside MBS & ABS analysis. A total of $419.42 billion of single-family MBS and non-mortgage ABS were issued during the second quarter, an increase of 21.2 percent from the first three months of the year. It was the strongest new issuance total since the third quarter of 2013 and marked the fifth straight quarterly increase since the market hit a cyclical low at the beginning of last year. Most of the gain came from the agency MBS sector, which totaled $352.73 billion in new issuance, a gain of 29.7 percent from the first quarter. All three agencies posted hefty gains, with the biggest coming at Ginnie Mae, where new issuance jumped 46.7 percent to hit $120.36 billion. A lot of Ginnie’s growth is coming from an unusual surge of refinance activity, which accounted for ... [ charts]