Atlantic Power Corporation (AT) - Market capitalization

Last known market cap: HK$2.10 Billion

As of December 2025 Atlantic Power Corporation has a market cap of HK$2.10 Billion. This makes Atlantic Power Corporation the world's 8087th 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 Atlantic Power Corporation from 2010 to 2022

End of year Market Cap

Year	Marketcap	Change
2022	HK$2.10 B	0.2%
2021	HK$2.10 B	45.36%
2020	HK$1.44 B	-25.99%
2019	HK$1.95 B	6.13%
2018	HK$1.84 B	-13.91%
2017	HK$2.14 B	-3.91%
2016	HK$2.22 B	19.23%
2015	HK$1.86 B	-26.79%
2014	HK$2.55 B	-21.38%
2013	HK$3.24 B	-69.2%
2012	HK$10.54 B	-15.88%
2011	HK$12.53 B	63.39%
2010	HK$7.67 B

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Southern Company SO	HK$739.29 B	35,088.45%	🇺🇸 USA
Duke Energy DUK	HK$705.13 B	33,462.34%	🇺🇸 USA
Edison International EIX	HK$173.96 B	8,180.11%	🇺🇸 USA
American Electric Power AEP	HK$489.59 B	23,203.24%	🇺🇸 USA
Idacorp IDA	HK$53.33 B	2,438.47%	🇺🇸 USA
Allete ALE	HK$30.56 B	1,354.91%	🇺🇸 USA
Xcel Energy XEL	HK$355.27 B	16,810.25%	🇺🇸 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 Atlantic Power Corporation (AT)

Last known market cap: HK$2.10 Billion