Investors interested in the jumbo mortgage-backed security from JPMorgan Chase that’s set to be issued next week received new disclosures with sometimes confusing information thanks to a rule from the Securities and Exchange Commission. JPMorgan Mortgage Trust 2015-4 will have a balance of $388.34 million, according to presale reports published last week by Kroll Bond Rating Agency and Moody’s Investors Service. A week before the presale reports ...