We recently published 10 Stocks Struggling to Shine Ahead of Christmas. Plug Power Inc. (NASDAQ:PLUG) is one of the worst performers on Monday. Plug Power dropped its share prices by 4.09 percent on Monday to close at $2.11 apiece as investors unloaded portfolios following the lack of fresh developments to bolster buying appetite. In recent developments, Plug Power Inc. (NASDAQ:PLUG) announced last week that it successfully installed a 5MW GenEco electrolyzer system for Cleanergy Solutions Namibia’s gre ...