Plug Power (PLUG) - Market capitalization

Market cap: HK$23.82 Billion

As of December 2025 Plug Power has a market cap of HK$23.82 Billion. This makes Plug Power the world's 3904th 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 2025

End of year Market Cap

Year	Marketcap	Change
2025	HK$23.82 B	41.49%
2024	HK$16.83 B	-20.88%
2023	HK$21.28 B	-62.23%
2022	HK$56.33 B	-55.59%
2021	HK$126.87 B	16.13%
2020	HK$109.25 B	1363.26%
2019	HK$7.46 B	250.84%
2018	HK$2.12 B	-49.48%
2017	HK$4.21 B	150.65%
2016	HK$1.68 B	-42.93%
2015	HK$2.94 B	-26.95%
2014	HK$4.03 B	215.89%
2013	HK$1.27 B	761.23%
2012	HK$0.14 B	-58.86%
2011	HK$0.36 B	-5.4%
2010	HK$0.38 B	-46.63%
2009	HK$0.71 B	2.41%
2008	HK$0.69 B	-74.26%
2007	HK$2.70 B	3.07%
2006	HK$2.62 B	-23.08%
2005	HK$3.41 B	-1.84%
2004	HK$3.47 B	-15.04%
2003	HK$4.09 B	129.27%
2002	HK$1.78 B	-47.93%
2001	HK$3.42 B	-31.64%
2000	HK$5.01 B	-46.86%
1999	HK$9.44 B

End of Day market cap according to different sources

On Dec 5th, 2025 the market cap of Plug Power was reported to be:

HK$23.84 Billion

by Nasdaq

HK$23.82 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Ballard Power Systems BLDP	HK$6.59 B	-72.30%	🇨🇦 Canada
FuelCell Energy FCEL	HK$3.10 B	-86.96%	🇺🇸 USA
Capstone Green Energy CGRN	HK$52.82 M	-99.78%	🇺🇸 USA
Walmart WMT	HK$7.141 T	29,880.82%	🇺🇸 USA
Procter & Gamble PG	HK$2.612 T	10,867.90%	🇺🇸 USA
Air Products and Chemicals APD	HK$451.55 B	1,795.60%	🇺🇸 USA
Lowe's Companies LOW	HK$1.084 T	4,453.19%	🇺🇸 USA
General Electric GE	HK$2.343 T	9,736.24%	🇺🇸 USA

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: HK$23.82 Billion