Share: Plug Power Inc (NASDAQ: PLUG) shares were rallying Monday after the struggling alternative energy stock got a major Wall Street upgrade. The Plug Power Analyst: JPMorgan analyst Paul Coster upgraded Plug from Neutral to Overweight and reiterated a $65 price target. The Plug Power Thesis: Plug Power is an excellent story stock in a market that is hungry for growth, particularly in the alternative energy space, Coster said in a Monday upgrade note. Plug shares are down 18% overall in the last month after the company disappointed investors by reporting a net loss of $476.3 million ...