AES vs SO
AES (AES) and Southern (SO) compared side by side. Southern (SO) is larger, with a market cap of $106.9B versus $10.7B for AES, about 10.0 times the size. On trailing earnings, AES is cheaper at 5.6x versus 22.4x for SO.
Head to head
| Metric | AES | SO |
|---|---|---|
| Market cap | $10.7B | $106.9B |
| P/E (TTM) | 5.6x | 22.4x |
| Forward P/E | 6.3x | 18.9x |
| Revenue (TTM) | $13.1B | $30.2B |
| Revenue growth | 19.9% | 0.1% |
| Gross margin | 20.3% | 48.3% |
| Operating margin | 18.7% | 29.6% |
| Free cash flow | -$1.7B | -$3.3B |
| Dividend yield | 4.67% | 3.27% |
| 1-year return | +10.9% | -0.2% |
| 5-year return (annual) | -5.9% | +12.1% |
| Max drawdown | -99% | -38% |
| FI Handbook grade | C | C- |
Highlighted: the stronger figure on metrics where higher or lower is clearly better.
Growth of $10,000 (5 years, price only)
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AES vs SO FAQ
Which is bigger, AES or SO?
Southern (SO) is larger, with a market cap of $106.9B versus $10.7B for AES, about 10.0 times the size.
Is AES or SO cheaper?
On trailing earnings, AES is cheaper at 5.6x versus 22.4x for SO. A lower P/E can reflect slower expected growth, so compare growth and margins too.
Which stock performed better over the past year, AES or SO?
AES returned +10.9% over the past year including dividends, versus -0.2% for SO, through October 23, 2026.
Which pays a higher dividend, AES or SO?
AES yields 4.67% versus 3.27% for SO.