Plug Power (PLUG) - Market capitalization

Market cap: C$4.45 Billion

As of March 2026 Plug Power has a market cap of C$4.45 Billion. This makes Plug Power the world's 3802th 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.

Market cap history of Plug Power from 1999 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	C$4.45 B	12.92%
2025	C$3.94 B	26.77%
2024	C$3.11 B	-13.89%
2023	C$3.61 B	-63.06%
2022	C$9.78 B	-52.81%
2021	C$20.73 B	15.39%
2020	C$17.96 B	1335.16%
2019	C$1.25 B	238.23%
2018	C$0.37 B	-45.39%
2017	C$0.67 B	132.75%
2016	C$0.29 B	-44.75%
2015	C$0.52 B	-12.62%
2014	C$0.60 B	244.28%
2013	C$0.17 B	821.57%
2012	C$19.01 M	-59.7%
2011	C$47.18 M	-3.54%
2010	C$48.91 M	-49.48%
2009	C$96.82 M	-11.67%
2008	C$0.10 B	-68.35%
2007	C$0.34 B	-11.91%
2006	C$0.39 B	-23.32%
2005	C$0.51 B	-4.63%
2004	C$0.53 B	-21.54%
2003	C$0.68 B	89.45%
2002	C$0.36 B	-48.38%
2001	C$0.70 B	-27.3%
2000	C$0.96 B	-45.01%
1999	C$1.75 B

End of Day market cap according to different sources

On Mar 17th, 2026 the market cap of Plug Power was reported to be:

C$4.45 Billion

by Nasdaq

C$4.45 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Walmart WMT	C$1.338 T	29,956.08%	🇺🇸 USA
Procter & Gamble PG	C$469.49 B	10,439.68%	🇺🇸 USA
Air Products and Chemicals APD	C$86.76 B	1,847.74%	🇺🇸 USA
General Electric GE	C$435.54 B	9,677.42%	🇺🇸 USA
Lowe's Companies LOW	C$177.99 B	3,895.76%	🇺🇸 USA
FuelCell Energy FCEL	C$0.48 B	-89.01%	🇺🇸 USA
Capstone Green Energy CGRN	C$9.31 M	-99.79%	🇺🇸 USA
Ballard Power Systems BLDP	C$1.08 B	-75.69%	🇨🇦 Canada

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Plug Power (PLUG)

Market cap: C$4.45 Billion