Over the past month, Plug Power (NASDAQ:PLUG) shares have experienced roller coaster price action. In mid-July, Plug Power stock briefly entered rebound mode. At the time, renewed hopes for a possible “Fed pivot” on interest rates later this year sent PLUG and other renewable energy stocks higher.However, not too long after this short-lived rally, the pressure was back on Plug once again. Besides fading excitement about lower interest rates, an announced $200 million secondary offering of newly-issued share ...