Southwest Gas (SWX) - Market capitalization

Market cap: A$9.06 Billion

As of April 2026 Southwest Gas has a market cap of A$9.06 Billion. This makes Southwest Gas the world's 2665th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$9.06 B	4.1%
2025	A$8.70 B	7.26%
2024	A$8.11 B	22.02%
2023	A$6.65 B	9.05%
2022	A$6.09 B	4.53%
2021	A$5.83 B	29.95%
2020	A$4.48 B	-24.78%
2019	A$5.96 B	3.65%
2018	A$5.75 B	16.15%
2017	A$4.95 B	-1.78%
2016	A$5.04 B	40.69%
2015	A$3.58 B	2.1%
2014	A$3.51 B	20.93%
2013	A$2.90 B	54.28%
2012	A$1.88 B	-1.01%
2011	A$1.90 B	15.58%
2010	A$1.64 B	14.95%
2009	A$1.43 B	-8.77%
2008	A$1.56 B	7.7%
2007	A$1.45 B	-28.31%
2006	A$2.03 B	43.28%
2005	A$1.41 B	17.49%
2004	A$1.20 B	16.81%
2003	A$1.03 B	-25.38%
2002	A$1.38 B	-2.63%
2001	A$1.42 B	14.7%
2000	A$1.24 B	14.4%
1999	A$1.08 B	-18.75%
1998	A$1.33 B	69.91%
1997	A$0.78 B	21.27%
1996	A$0.64 B

End of Day market cap according to different sources

On Mar 31st, 2026 the market cap of Southwest Gas was reported to be:

A$9.05 Billion

by Nasdaq

A$9.06 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Atmos Energy ATO	A$44.02 B	385.97%	🇺🇸 USA
CenterPoint Energy CNP	A$40.67 B	348.97%	🇺🇸 USA
Sempra SRE	A$91.46 B	909.53%	🇺🇸 USA
Oneok OKE	A$82.01 B	805.24%	🇺🇸 USA
NW Natural NWN	A$3.18 B	-64.82%	🇺🇸 USA
National Fuel Gas NFG	A$12.86 B	41.98%	🇺🇸 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: A$9.06 Billion