Plug Power (PLUG) Stock Plunges After Hours on $375 Million Convertible Note Deal – Key News for November 18, 2025
Plug Power Inc. (NASDAQ: PLUG) just delivered one of its busiest news days of 2025 — and the stock is feeling it. On Tuesday, November 18, 2025, the hydrogen specialist held its high‑profile annual Plug Power Symposium to outline its strategy, and announced plans to raise $375 million via a new convertible note offering. Shares closed only slightly higher on the day, but then sank more than 15% in after‑hours trading as investors digested the latest capital raise. Yahoo Finance+2Investing.com+2 Below is a full breakdown of what happened to PLUG stock today, why the company is raising more money, and how Wall