Southwest Gas (SWX) - Market capitalization

Market cap: S$7.45 Billion

As of December 2025 Southwest Gas has a market cap of S$7.45 Billion. This makes Southwest Gas the world's 2817th 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 Southwest Gas from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	S$7.45 B	8.65%
2024	S$6.86 B	14.65%
2023	S$5.98 B	7.55%
2022	S$5.56 B	-2.71%
2021	S$5.71 B	25.2%
2020	S$4.56 B	-18.93%
2019	S$5.63 B	1.66%
2018	S$5.54 B	7.06%
2017	S$5.17 B	-1.69%
2016	S$5.26 B	42.44%
2015	S$3.69 B	-2.71%
2014	S$3.79 B	15.71%
2013	S$3.28 B	37.2%
2012	S$2.39 B	-5.26%
2011	S$2.52 B	17.29%
2010	S$2.15 B	19.26%
2009	S$1.80 B	14.03%
2008	S$1.58 B	-13.63%
2007	S$1.83 B	-25.38%
2006	S$2.45 B	42.16%
2005	S$1.72 B	13.38%
2004	S$1.52 B	16.77%
2003	S$1.30 B	-3.6%
2002	S$1.35 B	0.75%
2001	S$1.34 B	11.82%
2000	S$1.20 B	1.32%
1999	S$1.18 B	-12.06%
1998	S$1.34 B	56.37%
1997	S$0.86 B	19.82%
1996	S$0.72 B

End of Day market cap according to different sources

On Dec 10th, 2025 the market cap of Southwest Gas was reported to be:

S$7.45 Billion

by Nasdaq

S$7.45 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
NW Natural NWN	S$2.47 B	-66.75%	🇺🇸 USA
Atmos Energy ATO	S$34.89 B	368.16%	🇺🇸 USA
Sempra Energy SRE	S$75.21 B	909.10%	🇺🇸 USA
Oneok OKE	S$60.11 B	706.52%	🇺🇸 USA
National Fuel Gas NFG	S$9.59 B	28.68%	🇺🇸 USA
CenterPoint Energy CNP	S$31.66 B	324.74%	🇺🇸 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 Southwest Gas (SWX)

Market cap: S$7.45 Billion