Constellation Energy market cap CEG
Share price times shares outstanding: what the whole company sells for, since 2022.
- Today, Oct 23, 2026
- $89.8B
- Highest close in our data
- $121.6B
- Oct 2025
Constellation Energy is worth $89.8B at the close on Oct 23, 2026, at $253.45 a share.
That is down 26% over the last year and up 526% over five years.
Its highest close in our data was $121.6B in Oct 2025.
Market cap over time
Year by year
| Year | End of year | Low | High | Change |
|---|---|---|---|---|
| 2026 so far | $89.8B | $81.6B | $119.4B | −20% |
| 2025 | $112.6B | $53.5B | $121.6B | +59% |
| 2024 | $70.9B | $36.1B | $89.3B | +90% |
| 2023 | $37.3B | $24B | $39.6B | +32% |
| 2022 | $28.2B | $14.3B | $31.8B | n/a |
Against its peers
Companies in Utilities nearest Constellation Energy's size, closest first, today.
| Company | Market cap |
|---|---|
| CEGConstellation Energy | $89.8B |
| DUKDuke Energy | $97.4B |
| SOSouthern | $106.9B |
| AEPAmerican Electric Power | $70.6B |
| DDominion Energy | $57.3B |
| SRESempra | $55B |
| ETREntergy | $50.1B |
| XELXcel Energy | $48.8B |
| NEENextEra Energy | $171.2B |
| VSTVistra | $47B |
| EXCExelon | $45.9B |
| Peer median | $56.2B |
What the market cap tells you
Share price times shares outstanding: what the whole company sells for today.
Size, not quality. Large caps move slower and are covered more. That is all it tells you.
More on Constellation Energy
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.