Wild Surge & Pullback: Plug Power (NASDAQ: PLUG) stock skyrocketed ~170% from late summer to an early October peak (~$4.58) amid hydrogen hype . It then tumbled back into the high-$2 range and trades around $2.8–$2.9 as of Oct. 30 – still about double its summer lows (~$0.69) . Big Hydrogen Deals: The company just inked a 2 GW electrolyzer supply deal for a sustainable fuels...