Hydro One (H.TO) - Market capitalization

Market cap: £15.04 Billion

As of January 2025 Hydro One has a market cap of £15.04 Billion. This makes Hydro One the world's 1030th 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 Hydro One from 2015 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£15.04 B	2.23%
2024	£14.71 B	4.35%
2023	£14.10 B	6.15%
2022	£13.28 B	16.07%
2021	£11.44 B	16.18%
2020	£9.85 B	12.71%
2019	£8.73 B	25.23%
2018	£6.97 B	-11.13%
2017	£7.85 B	-6.91%
2016	£8.43 B	30.76%
2015	£6.45 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 Hydro One (H.TO)

Market cap: £15.04 Billion