Danny Moses, a hedge funder at the center of "The Big Short" said investing in cannabis is the "big long." Moses has invested in a private equity firm, Merida Capital, that focuses on the emerging cannabis sector. His best advice: "Be patient." A hedge funder behind "The Big Short" trade is turning his attention to marijuana Danny Moses, the head trader at FrontPoint Partners under Steve Eisman during the housing crisis in 2008, said cannabis is the new "big long" at a conference on Thursday.