Current
$108B
5-Year Average
$85.8B
All-Time High
$111B
All-Time Low
$16.9B
Market cap daily chart for Southern Company (SO)
Aug 2, 2021 – Jul 29, 2026 · 1,253 trading days
Market Cap growth chart for Southern Company (SO) from 2017 to 2026
Latest: +12.0%
Market Cap history table for Southern Company (SO) from 1985 to 2026
| 2026 | $108B | +12.0% | +$11.6B | ||
| 2025 | $96.7B | +6.5% | +$5.91B | ||
| 2024 | $90.8B | +17.9% | +$13.8B | ||
| 2023 | $77B | -0.3% | -$201M | ||
| 2022 | $77.2B | +6.1% | +$4.43B | ||
| 2021 | $72.8B | +12.0% | +$7.77B | ||
| 2020 | $65B | -3.1% | -$2.08B | ||
| 2019 | $67.1B | +47.7% | +$21.7B | ||
| 2018 | $45.4B | -6.3% | -$3.05B | ||
| 2017 | $48.5B | -0.5% | -$252M | ||
| 2016 | $48.7B | +14.2% | +$6.05B | ||
| 2015 | $42.7B | -4.4% | -$1.95B | ||
| 2014 | $44.6B | +22.3% | +$8.13B | ||
| 2013 | $36.5B | -1.8% | -$682M | ||
| 2012 | $37.2B | -6.3% | -$2.51B | ||
| 2011 | $39.7B | +24.5% | +$7.81B | ||
| 2010 | $31.9B | +20.3% | +$5.37B | ||
| 2009 | $26.5B | -7.6% | -$2.19B | ||
| 2008 | $28.7B | -2.8% | -$814M | ||
| 2007 | $29.5B | +7.0% | +$1.92B | ||
| 2006 | $27.6B | +6.6% | +$1.71B | ||
| 2005 | $25.9B | +3.8% | +$958M | ||
| 2004 | $24.9B | +12.5% | +$2.76B | ||
| 2003 | $22.1B | +9.2% | +$1.87B | ||
| 2002 | $20.3B | +15.2% | +$2.68B | ||
| 2001 | $17.6B | +32.8% | +$4.35B | ||
| 2000 | $13.2B | +34.9% | +$3.43B | ||
| 1999 | $9.82B | -20.4% | -$2.52B | ||
| 1998 | $12.3B | +14.3% | +$1.54B | ||
| 1997 | $10.8B | +16.4% | +$1.52B | ||
| 1996 | $9.27B | -7.0% | -$702M | ||
| 1995 | $9.98B | +25.8% | +$2.05B | ||
| 1994 | $7.93B | -7.6% | -$648M | ||
| 1993 | $8.58B | +30.2% | +$1.99B | ||
| 1992 | $6.59B | +13.9% | +$805M | ||
| 1991 | $5.78B | +33.9% | +$1.46B | ||
| 1990 | $4.32B | -9.7% | -$466M | ||
| 1989 | $4.79B | +13.0% | +$550M | ||
| 1988 | $4.24B | +7.7% | +$303M | ||
| 1987 | $3.93B | +6.3% | +$234M | ||
| 1986 | $3.7B | +23.9% | +$714M | ||
| 1985 | $2.98B | — | — |
- 2026$108B+12.0%
- 2025$96.7B+6.5%
- 2024$90.8B+17.9%
- 2023$77B-0.3%
- 2022$77.2B+6.1%
- 2021$72.8B+12.0%
- 2020$65B-3.1%
- 2019$67.1B+47.7%
- 2018$45.4B-6.3%
- 2017$48.5B-0.5%
- 2016$48.7B+14.2%
- 2015$42.7B-4.4%
- 2014$44.6B+22.3%
- 2013$36.5B-1.8%
- 2012$37.2B-6.3%
- 2011$39.7B+24.5%
- 2010$31.9B+20.3%
- 2009$26.5B-7.6%
- 2008$28.7B-2.8%
- 2007$29.5B+7.0%
- 2006$27.6B+6.6%
- 2005$25.9B+3.8%
- 2004$24.9B+12.5%
- 2003$22.1B+9.2%
- 2002$20.3B+15.2%
- 2001$17.6B+32.8%
- 2000$13.2B+34.9%
- 1999$9.82B-20.4%
- 1998$12.3B+14.3%
- 1997$10.8B+16.4%
- 1996$9.27B-7.0%
- 1995$9.98B+25.8%
- 1994$7.93B-7.6%
- 1993$8.58B+30.2%
- 1992$6.59B+13.9%
- 1991$5.78B+33.9%
- 1990$4.32B-9.7%
- 1989$4.79B+13.0%
- 1988$4.24B+7.7%
- 1987$3.93B+6.3%
- 1986$3.7B+23.9%
- 1985$2.98B—
Market Cap values are taken from Southern Company's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at Southern Company (SO)
According to Southern Company's latest reported financial statements, the company's latest reported market cap is $109B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
Southern Company (SO) most recent annual market cap stands at $108B (2026) – grew 12.0% year-over-year.
Southern Company market cap compound annual growth for the 2021–2026 (5 years) window is +8.3%, sustaining 3 straight years of year-over-year growth.
The record annual market cap stands at $108B, reached in 2026; the historical low of $2.98B was recorded in 1985.
Southern Company Market Cap by Year
Southern Company Market Cap 2026: $108B
Southern Company market cap in 2026 was $108B, grew 12.0% from 2025. This figure represents the highest annual value in the available history.
Southern Company Market Cap 2025: $96.7B
2025's market cap for Southern Company came in at $96.7B, grew 6.5% from 2024.
Southern Company Market Cap 2024: $90.8B
Southern Company posted market cap of $90.8B in 2024, grew 17.9% from 2023.
Southern Company Market Cap 2023: $77B
In 2023, Southern Company reported market cap of $77B, edged down 0.3% below 2022.
Southern Company Market Cap 2022: $77.2B
Southern Company market cap in 2022 was $77.2B.
See more financial history for Southern Company (SO).
Sector peers by Market Cap
Utilities peers of Southern Company (SO), ranked by their latest market cap
| $240B | |
| $184B | |
| $101B | |
| $92.6B | |
| $70.4B | |
| $62B | |
| $58.1B | |
| $50.3B |
- $240B
- $184B
- $101B
- $58.1B
- $50.3B
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Southern Company (SO) Key Financials
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Deep-dives across the income statement, cash flow, capital return, and valuation
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- Stock Split History2 splits
How this company returns cash to shareholders — buybacks, dividends, and stock splits.