By Karen Brettell Dec 2 (Reuters) - With bitcoin trading well below its recent highs, hedge fund manager and activist investor Eric Jackson is betting that ​investors will still want exposure to crypto — just with less pain on the way ‌down. Jackson's firm EMJ Capital is preparing to launch EMJX, a crypto-focused treasury company that will invest in bitcoin, ‌ethereum and a selection of smaller cryptocurrencies. While EMJX will buy and hold these assets, it plans to distinguish itself from other crypto ...