The most active issuer of jumbo mortgage-backed securities in 2015, based on the number of deals sold, is set to issue the first jumbo MBS of the year. Two Harbors Investment is preparing a $304.75 million deal, according to presale reports. A presale report from Standard & Poor’s on the deal on Jan. 4 ended a span of 31 days without a presale report for a new jumbo MBS. Fitch Ratings published a presale report on the same deal the following day. The deal will mark the first ...