The latest non-agency mortgage-backed security from JPMorgan Chase will include a higher share of conforming mortgages than the previous issuance from the firm. Chase is preparing to issue a $999.0 million MBS, according to presale reports from DBRS, Fitch Ratings and Moody’s Investors Service. Mortgages eligible for sale to the government-sponsored enterprises account for 65.1 percent of the collateral, amounting to $650.3 million. GSE-eligible mortgages ...