Plug Power (NASDAQ: PLUG) has surged nearly 50% since the start of 2026, approaching the $3 mark for the first time in months. However, despite this rally attracting retail investor interest, institutional investors remain cautious, with the stock showing a significant 25% short interest. The company’s history of share dilution—growing from over 500 million to approximately 1.15 billion shares in five years—adds to the skepticism surrounding its future performance.

While Plug Power has implemented a turnaround strategy focusing on more profitable segments, such as electrolyzers and hydrogen fuel cells, it still reported a negative operating cash flow of $535.8 million last year. The recent approval to double its maximum authorized shares raises concerns about potential future equity raises, which could further dilute existing shareholders and negatively impact stock prices.

Market professionals should closely monitor Plug Power’s cash flow and management’s guidance on capital needs. If the company fails to achieve its ambitious targets or signals the necessity for additional capital raises, it could lead to a significant decline in share value, making it a high-risk investment.

Source: fool.com