Plug PowerWBO:PLUG -0.93%34 Market Cap is €3,118.9 Mil as of Jun. 26, 2026. GuruFocus rates WBO:PLUG with a GF Score™ of 34/100 and a GF Value™ of €1.29 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 3,100 Industrial Products companies, Plug Power ranks better than 90.61% on this metric.
Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Plug Power's share price for the quarter that ended in Mar. 2026 was €1.8966. Plug Power's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 1,394.7 Mil. Therefore, Plug Power's market cap for the quarter that ended in Mar. 2026 was €2,645.1 Mil.
Plug Power's quarterly market cap
increased
from Sep. 2025 (€2,322.3 Mil) to Dec. 2025 (€2,340.1 Mil) and
increased
from Dec. 2025 (€2,340.1 Mil) to Mar. 2026 (€2,645.1 Mil).
Plug Power's annual market cap
declined
from Dec. 2023 (€2,561.5 Mil) to Dec. 2024 (€2,055.4 Mil) but then
increased
from Dec. 2024 (€2,055.4 Mil) to Dec. 2025 (€2,340.1 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Plug Power's Enterprise Value for Today is €3,832.4 Mil.
Plug Power (WBO:PLUG) Market Cap Explanation
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
Plug Power Market Cap Related Terms
Plug Power Market Cap Historical Data
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The historical data trend for Plug Power's Market Cap can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Electrical Equipment & Parts subindustry, Plug Power's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Plug Power Market Cap vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Plug Power's Market Cap distribution charts can be found below:
* The bar in red indicates where Plug Power's Market Cap falls into.
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
Plug Power's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Plug Power (WBO:PLUG) has a Market Cap of €3,118.9 Mil as of Jun. 26, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Plug Power and its competitors. According to the industry distribution chart, Plug Power ranks #291 out of 3100 companies in the Industrial Products industry, placing it in the top 9.4%.
Is Plug Power's Market Cap too high?
Plug Power's current Market Cap is €3,118.9 Mil. Based on the distribution chart, Plug Power ranks #291 out of 3100 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Plug Power has a GF Score™ of 34/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Plug Power's Market Cap compare to HAYW and TE?
According to the Industrial Products industry distribution chart, Plug Power ranks #291 out of 3100 companies for Market Cap. This places Plug Power in the top 9% of its industry — outperforming the majority of peers. The industry median Market Cap is 282.60. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for an Industrial Products company?
The median Market Cap among Industrial Products companies is 282.60, based on 3,100 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Plug Power and its competitors. For the Industrial Products industry, the median Market Cap is 282.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Plug Power's current Market Cap is €3,118.9 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Plug Power stock overvalued right now?
Based on GuruFocus' analysis, Plug Power (WBO:PLUG) is currently considered Significantly Overvalued. The stock's GF Value™ is €1.29, compared to a current price of €2.23 — trading 73% above its estimated fair value. The current Market Cap is €3,118.9 Mil. Plug Power's overall GF Score™ is 34/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Plug Power (WBO:PLUG), the current Market Cap is €3,118.9 Mil as of Jun. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Plug Power (WBO:PLUG) Overvalued in 2026?
Based on GuruFocus' analysis, Plug Power stock appears to be overvalued.
The current stock price of €2.23 is trading 73% above its estimated GF Value™ of €1.29.
GuruFocus considers Plug Power to be Significantly Overvalued.
Key valuation signals for WBO:PLUG:
Market Cap: €3,118.9 Mil
GF Value™: €1.29 vs. price of €2.23 (73% above fair value)
No single metric tells the full story. See the WBO:PLUG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Plug Power Inc is building an end-to-end green hydrogen ecosystem, from production, storage, and delivery to energy generation. The company plans to build and operate green hydrogen highways across North America and Europe. Plug will deliver its green hydrogen solutions directly to its customers and through joint venture partners into multiple end markets, including material handling, e-mobility, power generation, and industrial applications.
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