ONE Gas (OGS) - Market capitalization

Market cap: HK$43.59 Billion

As of April 2026 ONE Gas has a market cap of HK$43.59 Billion. This makes ONE Gas the world's 3002th 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 ONE Gas from 2014 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$43.59 B	20.24%
2025	HK$36.25 B	18.5%
2024	HK$30.59 B	10.86%
2023	HK$27.59 B	-13.84%
2022	HK$32.03 B	-1.2%
2021	HK$32.42 B	2.6%
2020	HK$31.59 B	-17.83%
2019	HK$38.45 B	17.37%
2018	HK$32.76 B	9.51%
2017	HK$29.92 B	15.47%
2016	HK$25.91 B	27.52%
2015	HK$20.32 B	22.03%
2014	HK$16.65 B

End of Day market cap according to different sources

On Apr 20th, 2026 the market cap of ONE Gas was reported to be:

HK$43.60 Billion

by Nasdaq

HK$43.59 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Atmos Energy ATO	HK$241.30 B	453.56%	🇺🇸 USA
CenterPoint Energy CNP	HK$218.77 B	401.87%	🇺🇸 USA
RGC Resources RGCO	HK$1.78 B	-95.91%	🇺🇸 USA
NW Natural NWN	HK$17.58 B	-59.66%	🇺🇸 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 ONE Gas (OGS)

Market cap: HK$43.59 Billion