AltaGas (ALA.TO) - Market capitalization

Market cap: A$13.88 Billion

As of February 2026 AltaGas has a market cap of A$13.88 Billion. This makes AltaGas the world's 2079th 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 AltaGas from 2000 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$13.88 B	-3.09%
2025	A$14.32 B	30.02%
2024	A$11.01 B	21.41%
2023	A$9.07 B	26.81%
2022	A$7.15 B	-13.56%
2021	A$8.28 B	55.18%
2020	A$5.33 B	-11.6%
2019	A$6.03 B	51.43%
2018	A$3.98 B	-21.03%
2017	A$5.04 B	-12.35%
2016	A$5.75 B	28.75%
2015	A$4.47 B	-26.82%
2014	A$6.11 B	16.4%
2013	A$5.25 B	53.46%
2012	A$3.42 B	34.1%
2011	A$2.55 B	44.68%
2010	A$1.76 B	13.35%
2009	A$1.55 B	7.93%
2008	A$1.44 B	-27.5%
2007	A$1.98 B	23.56%
2006	A$1.60 B	-10.44%
2005	A$1.79 B	35.64%
2004	A$1.32 B	76.08%
2003	A$0.75 B	54.34%
2002	A$0.48 B	41.05%
2001	A$0.34 B	48.71%
2000	A$0.23 B

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 AltaGas (ALA.TO)