Southern Company (SO) - Market capitalization

Market cap: A$149.61 Billion

As of June 2026 Southern Company has a market cap of A$149.61 Billion. This makes Southern Company the world's 217th 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 Southern Company from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$149.61 B	4.4%
2025	A$143.30 B	-2.15%
2024	A$146.45 B	30.47%
2023	A$112.24 B	-1.75%
2022	A$114.24 B	13.95%
2021	A$100.25 B	18.81%
2020	A$84.38 B	-11.92%
2019	A$95.80 B	48.65%
2018	A$64.45 B	4.25%
2017	A$61.82 B	-7.56%
2016	A$66.87 B	14.22%
2015	A$58.55 B	7.42%
2014	A$54.50 B	33.28%
2013	A$40.89 B	14.37%
2012	A$35.75 B	-8.11%
2011	A$38.91 B	22.57%
2010	A$31.74 B	4.44%
2009	A$30.39 B	-25.46%
2008	A$40.78 B	20.49%
2007	A$33.84 B	-3.03%
2006	A$34.90 B	-0.28%
2005	A$34.99 B	8.92%
2004	A$32.13 B	7.45%
2003	A$29.90 B	-17.22%
2002	A$36.12 B	4.04%
2001	A$34.72 B	-14.39%
2000	A$40.55 B	70.29%
1999	A$23.81 B	-27.86%
1998	A$33.01 B	19.96%
1997	A$27.52 B	42.74%
1996	A$19.28 B

End of Day market cap according to different sources

On Jun 14th, 2026 the market cap of Southern Company was reported to be:

A$149.74 Billion

by Nasdaq

A$149.61 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
American Electric Power AEP	A$99.27 B	-33.64%	🇺🇸 USA
Dominion Energy D	A$84.32 B	-43.64%	🇺🇸 USA
FirstEnergy FE	A$38.40 B	-74.33%	🇺🇸 USA
NRG Energy NRG	A$37.37 B	-75.02%	🇺🇸 USA
Nextera Energy NEE	A$253.21 B	69.24%	🇺🇸 USA
Duke Energy DUK	A$137.55 B	-8.06%	🇺🇸 USA
Entergy ETR	A$71.83 B	-51.99%	🇺🇸 USA
PPL PPL	A$38.08 B	-74.55%	🇺🇸 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 Southern Company (SO)

Market cap: A$149.61 Billion