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The Southern Company
SO
Market cap$105.99 B
Rank#143
SEC filings934
Market capitalization of The Southern Company
As of 2026-06-11, The Southern Company (SO) has a market capitalization of $105.99 B, making it the #143 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $105.99 B |
| 2026-06-10 | $106.23 B |
| 2026-05-29 | $103.70 B |
| 2026-05-28 | $105.67 B |
| 2026-05-26 | $106.33 B |
| 2026-05-25 | $106.59 B |
| 2026-05-24 | $106.59 B |
| 2026-05-22 | $106.59 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
Market Cap of similar companies
Frequently asked questions
What is The Southern Company's market cap?
As of 2026-06-11, The Southern Company (SO) has a market capitalization of $105.99 B, making it the #143 most valuable US-listed company.
Where does The Southern Company rank by market cap?
The Southern Company is the #143 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.