As of February 2026 Plug Power has a market cap of โฌ2.41 Billion. This makes Plug Power the world's 4139th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Feb 3rd, 2026 the market cap of Plug Power was reported to be: