With a market capitalization (market cap) of $104.89B — a measure of how much the company is worth — The Southern Company ranks #157 among the 2,502 companies tracked, and 2nd in Utilities as of October 17, 2026. Shares trade at $91.18, up 2.24% on the day.
of 2,502 tracked
Market-cap change uses historical capitalization records. Share-price returns are a different series — they can diverge when the share count changes. Those returns are not a CAGR until you pick a start value, an ending value, and years. CAGR calculator. Market cap vs. stock price.
Year-end values and the chart both come from historical market-cap records, not from applying today's share count to past prices. Latest historical observation October 16, 2026. Ranking headline cap is the snapshot figure as of October 17, 2026.
| Year | As of | Market cap | Annual change | Year-end close |
|---|---|---|---|---|
| 2026 | Oct 16, 2026 | $103.67B | +5.77% | $91.18 |
| 2025 | Dec 31, 2025 | $98.01B | +8.24% | $87.20 |
| 2024 | Dec 31, 2024 | $90.55B | +18.26% | $82.32 |
| 2023 | Dec 29, 2023 | $76.57B | -1.63% | $70.12 |
| 2022 |
Ranking figure $104.89B as of October 17, 2026.
The Southern Company's ranking market cap is the provider-reported capitalization on the same snapshot as the rest of this site, with a share price of $91.18 as of October 16, 2026. Charts and the year-end table use a separate historical market-cap series, last observed at $103.67B on October 16, 2026. See how the ranking works.
Live shares outstanding are not on the quote used for price, so this page does not invent a current share count. Shares outstanding vs. float.
The latest annual report (FY 2025) used a weighted-average 1,103,000,000 shares. That figure is an average for the year, not the live count in the market-cap formula.
Multiple share classes of this company are combined on the ranking so it is counted once. Dual-class shares and market cap.
Book equity: assets minus liabilities on the latest annual report.
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
FY 2025
Not in this snapshot
FY 2025 net worth
Largest U.S.-listed names in the same FMP sector — not a hand-picked competitor set.
| Rank | Company | Market cap | 1D |
|---|---|---|---|
| #97 | NextEra Energy, Inc. NEE | $166.46B | +1.06% |
| #158 | Southern Company (The) Series 2 SOJE | $104.89B | -0.13% |
| #170 | Constellation Energy Corporation |
The Southern Company operates as an energy utility, primarily involved in the production, transmission, and distribution of electricity. Its operations are segmented into Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services. The company also undertakes the development, construction, acquisition, ownership, and management of various power generation assets, including renewable energy ventures, and supplies electricity to the wholesale market.
Summary from the company profile (Financial Modeling Prep). Principal financial figures above are for FY 2025.
Visit websiteAs of October 17, 2026, The Southern Company (SO) is worth $104.89B — that is its market capitalization, the total value of its outstanding shares on MarketCapLens.
A company’s net worth is its shareholders’ equity: assets minus liabilities on the balance sheet. That is book equity, not market cap. For FY 2025, The Southern Company’s book equity is about $38.87B. Market cap is the market value of the outstanding shares. As of October 17, 2026, its market cap is $104.89B. Book equity is an accounting remainder; market cap is a trading value. Neither is a person’s net worth.
The Southern Company ranks #157 among the 2,502 companies tracked on MarketCapLens. In Utilities it ranks #2 of 90.
Fundamentals are annual. Figures labeled with their fiscal year. Live ratios use the current price against those annual earnings.
| Dec 30, 2022 |
| $77.84B |
| +6.77% |
| $71.41 |
| 2021 | Dec 31, 2021 | $72.9B | — | $68.58 |
|---|
Last observation of each calendar year from historical market-cap records. The current year is through the latest date, not a completed year-end. Share-price close is the matching session for context — we do not rebuild cap from today's share count.
Not in this snapshot
FY 2025
| $96.15B |
| -1.32% |
| #176 | Duke Energy Corporation DUK | $94.71B | +2.18% |
| #210 | National Grid plc NGG | $81.66B | +2.72% |
| #249 | American Electric Power Company, Inc. AEP | $69.21B | +2.29% |
Companies immediately above and below in the overall ranking. They may be in a different sector.
| Rank | Company | Market cap | 1D |
|---|---|---|---|
| #154 | Enbridge Inc. ENB | $107.21B | +2.71% |
| #155 | CME Group Inc. CME | $105.67B | +1.52% |
| #156 | Cloudflare, Inc. NET | $105.44B | -6.39% |
| #158 | Southern Company (The) Series 2 SOJE | $104.89B | -0.13% |
| #159 | Itaú Unibanco Holding S.A. ITUB | $104.05B | -0.63% |
| #160 | Airbnb, Inc. ABNB | $104.01B | -0.33% |
The Southern Company’s ranking market cap of $104.89B comes from the same snapshot as the rest of this site, as of October 17, 2026. It is not share price multiplied by the FY 2025 weighted-average share count of 1,103,000,000. The historical market-cap series last observed $103.67B on October 16, 2026.
Over the past year, The Southern Company’s market cap is down 4.51%, using historical market-cap records rather than today’s share count applied to past prices.
The Southern Company (SO) shares trade at $91.18, up 2.24% on the day, as of October 17, 2026.
The Southern Company trades at a live price-to-earnings (P/E) ratio of 23.1, using the latest share price divided by the latest annual earnings per share. That is not the same as a fiscal-year reported P/E.