The Southern Company
Market Cap
$105.7B
Global Rank
#154
All-Time High
$110.5B
2026-07-02
Total Growth
+0%
since 2026
Market Cap Context
- Larger than 58% of the 367 companies we track (globally).
- Equivalent to 0.3% of United States's GDP (2025 data).
- Just above: #153 General Dynamics Corporation ($106.0B)
- Just below: #155 Enel SpA ($105.5B)
- Best year: 2019 (+52%). Worst year: 1999 (-15%).
The Southern Company Financial Breakdown (FY 2025)
Source: Yahoo Finance β SO annual filings (2025) β$29.6B revenue Β· $7.3B operating income Β· $4.3B net income
- βOperating margin: 24.7% on $29.6B in revenue.
- βNet income margin: 14.7% β $4.3B in profit.
- βFree cash flow: $-2.9B (-9.9% of revenue).
Cost / Operating Expenses
Total operating expenses $22.3B
Total
$15.2B
Capital Expenditures
$12.7B
This fiscal year (near-total AI infrastructure buildout)
Free Cash Flow
$-2.9B
Trailing twelve months
Figures rounded from the annual SEC filing. Unaudited. For informational purposes only, not investment advice.
About The Southern Company
Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices located in Birmingham, Alabama. As of 2021 it is the second largest utility company in the U.S. in terms of customer base. Through its subsidiaries it serves 9 million gas and electric utility customers in 6 states. Southern Company's regulated regional electric utilities serve a 120,000-square-mile (310,000Β km2) territory with 27,000 miles (43,000Β km) of distribution lines.
The Southern Company Market Cap History (2026β2026)
The Southern Company vs Sector Peers by Market Cap
Compare The Southern Company
Ranking History
| Year | Market Cap | Rank | YoY Change |
|---|---|---|---|
| 2026 | $105.7B | #154(β4) | +9.3% |
| 2025 | $96.7B | #150(β7) | +9.5% |
| 2024 | $88.4B | #143(β5) | +21.7% |
| 2023 | $72.6B | #148(β20) | +2.2% |
| 2022 | $71.0B | #128(β21) | +8.2% |
| 2021 | $65.6B | #149(β5) | +16.3% |
| 2020 | $56.4B | #154(β31) | +0.6% |
| 2019 | $56.1B | #123(β21) | +51.7% |
| 2018 | $37.0B | #144(β6) | -3.8% |
| 2017 | $38.4B | #150(β24) | +2.4% |
| 2016 | $37.5B | #126(β5) | +9.9% |
| 2015 | $34.1B | #121(β9) | -0.1% |
| 2014 | $34.1B | #112(β16) | +25.2% |
| 2013 | $27.3B | #128(β35) | +0.5% |
| 2012 | $27.1B | #93(β22) | -3.5% |
| 2011 | $28.1B | #71(β31) | +26.9% |
| 2010 | $22.2B | #102(β10) | +20.7% |
| 2009 | $18.4B | #112(β42) | -4.9% |
| 2008 | $19.3B | #70(β44) | +0.0% |
| 2007 | $19.3B | #114(β7) | +9.9% |
| 2006 | $17.6B | #107(β9) | +11.7% |
| 2005 | $15.7B | #98(β14) | +7.6% |
| 2004 | $14.6B | #84(β5) | +16.2% |
| 2003 | $12.6B | #79(β7) | +11.7% |
| 2002 | $11.3B | #72(β30) | +17.6% |
| 2001 | $9.6B | #102(β21) | +31.8% |
| 2000 | $7.3B | #123(β12) | +48.7% |
| 1999 | $4.9B | #111(β22) | -15.0% |
| 1998 | $5.7B | #89(β3) | +18.2% |
| 1997 | $4.9B | #92(β7) | +21.4% |
| 1996 | $4.0B | #85(β22) | -2.9% |
| 1995 | $4.1B | #63(β6) | +30.3% |
| 1994 | $3.2B | #57 |
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FAQ
What is The Southern Company's market cap?
The Southern Company (SO) has a market capitalization of $105.7B, making it the #154 largest company in the world by market cap.
What was The Southern Company's highest market cap?
The Southern Company's all-time high market cap was $110.5B, reached in 2026-07-02. Its highest rank was #154 in 2026.
What sector is The Southern Company in?
The Southern Company is in the Utilities sector, specifically the Utilities - Regulated Electric industry. It is based in United States.
How has The Southern Company's market cap changed over time?
The Southern Company has been tracked since 2026. Its market cap has grown by 0% from $105.7B in 2026 to $105.7B today.