Southern Company (SO) - Market capitalization

Market cap: S$122.68 Billion

As of January 2026 Southern Company has a market cap of S$122.68 Billion. This makes Southern Company the world's 225th 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	S$122.68 B	-0.44%
2025	S$123.23 B	-0.48%
2024	S$123.82 B	22.6%
2023	S$100.99 B	-3.09%
2022	S$104.22 B	6.07%
2021	S$98.25 B	14.47%
2020	S$85.83 B	-5.08%
2019	S$90.43 B	45.79%
2018	S$62.02 B	-3.91%
2017	S$64.55 B	-7.47%
2016	S$69.76 B	15.64%
2015	S$60.33 B	2.37%
2014	S$58.94 B	27.53%
2013	S$46.21 B	1.7%
2012	S$45.44 B	-12.06%
2011	S$51.67 B	24.39%
2010	S$41.53 B	8.36%
2009	S$38.33 B	-6.83%
2008	S$41.14 B	-3.37%
2007	S$42.57 B	0.93%
2006	S$42.18 B	-1.05%
2005	S$42.63 B	5.11%
2004	S$40.56 B	7.41%
2003	S$37.76 B	6.94%
2002	S$35.31 B	7.66%
2001	S$32.80 B	-16.54%
2000	S$39.30 B	50.82%
1999	S$26.05 B	-21.93%
1998	S$33.37 B	10.4%
1997	S$30.23 B	41.03%
1996	S$21.43 B

End of Day market cap according to different sources

On Jan 12th, 2026 the market cap of Southern Company was reported to be:

S$122.65 Billion

by Nasdaq

S$122.68 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Dominion Energy D	S$64.04 B	-47.80%	🇺🇸 USA
Duke Energy DUK	S$116.58 B	-4.97%	🇺🇸 USA
Entergy ETR	S$53.63 B	-56.28%	🇺🇸 USA
American Electric Power AEP	S$80.15 B	-34.67%	🇺🇸 USA
Nextera Energy NEE	S$217.01 B	76.88%	🇺🇸 USA
FirstEnergy FE	S$33.19 B	-72.95%	🇺🇸 USA
PPL PPL	S$33.06 B	-73.05%	🇺🇸 USA
NRG Energy NRG	S$36.99 B	-69.85%	🇺🇸 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: S$122.68 Billion