As of April 2026 Plug Power has a market cap of C$6.12 Billion. This makes Plug Power the world's 3388th 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 Apr 20th, 2026 the market cap of Plug Power was reported to be: