AltaGas (ALA.TO) - Market capitalization

Market cap: £8.15 Billion

As of March 2026 AltaGas has a market cap of £8.15 Billion. This makes AltaGas the world's 1847th 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	£8.15 B	14.47%
2025	£7.12 B	30.46%
2024	£5.46 B	12.52%
2023	£4.85 B	20.56%
2022	£4.02 B	-9.48%
2021	£4.44 B	47.74%
2020	£3.01 B	-6.6%
2019	£3.22 B	45.68%
2018	£2.21 B	-24.12%
2017	£2.91 B	-13.33%
2016	£3.36 B	53%
2015	£2.19 B	-31.57%
2014	£3.21 B	13.15%
2013	£2.83 B	29.07%
2012	£2.20 B	30.7%
2011	£1.68 B	45.05%
2010	£1.16 B	34.35%
2009	£0.86 B	24.46%
2008	£0.69 B	-20.7%
2007	£0.87 B	35.11%
2006	£0.64 B	-15.05%
2005	£0.76 B	42.78%
2004	£0.53 B	70.81%
2003	£0.31 B	82.52%
2002	£0.17 B	40.8%
2001	£0.12 B	39.73%
2000	£87.07 M

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)