SO
As of 2026-06-10, The Southern Company (SO) has a market capitalization of $106.23 B, making it the #142 most valuable US-listed company.
| Date | Market cap |
|---|---|
| 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.
As of 2026-06-10, The Southern Company (SO) has a market capitalization of $106.23 B, making it the #142 most valuable US-listed company.
The Southern Company is the #142 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.