Plug Power (PLUG) - Market capitalization

Market cap: A$5.35 Billion

As of June 2026 Plug Power has a market cap of A$5.35 Billion. This makes Plug Power the world's 3718th 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	A$5.35 B	24.46%
2025	A$4.30 B	23.35%
2024	A$3.48 B	-12.82%
2023	A$3.99 B	-62.26%
2022	A$10.59 B	-52.79%
2021	A$22.44 B	22.45%
2020	A$18.32 B	1238.53%
2019	A$1.36 B	254.95%
2018	A$0.38 B	-44.15%
2017	A$0.69 B	129.7%
2016	A$0.30 B	-42.36%
2015	A$0.52 B	-17.88%
2014	A$0.63 B	244.2%
2013	A$0.18 B	902.97%
2012	A$18.39 M	-59.33%
2011	A$45.23 M	-6.1%
2010	A$48.17 M	-52.97%
2009	A$0.10 B	-19.84%
2008	A$0.12 B	-67.82%
2007	A$0.39 B	-7.3%
2006	A$0.42 B	-28.83%
2005	A$0.60 B	4.05%
2004	A$0.57 B	-18.61%
2003	A$0.71 B	74.84%
2002	A$0.40 B	-52.84%
2001	A$0.86 B	-25.09%
2000	A$1.15 B	-37.79%
1999	A$1.84 B

End of Day market cap according to different sources

On Jun 16th, 2026 the market cap of Plug Power was reported to be:

A$5.35 Billion

by Nasdaq

A$5.35 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Walmart WMT	A$1.363 T	25,376.29%	🇺🇸 USA
Procter & Gamble PG	A$502.73 B	9,292.28%	🇺🇸 USA
Air Products and Chemicals APD	A$88.42 B	1,552.04%	🇺🇸 USA
General Electric GE	A$520.30 B	9,620.53%	🇺🇸 USA
Lowe's Companies LOW	A$177.93 B	3,224.18%	🇺🇸 USA
FuelCell Energy FCEL	A$1.89 B	-64.68%	🇺🇸 USA
Capstone Green Energy CGRN	A$9.61 M	-99.82%	🇺🇸 USA
Ballard Power Systems BLDP	A$1.76 B	-67.07%	🇨🇦 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: A$5.35 Billion