Overall asset securitization issuance activity increased from April to May, with a gain in non-mortgage production offsetting a modest decline in the non-agency housing-related sector. Non-mortgage asset-backed securitization hit $23.63 billion in May, up 15 percent from the previous month, as a dozen $1 billion-plus transactions hit the market. With a handful of large auto finance ABSs being priced this week, issuance in