AEP vs CEG
American Electric Power Co Inc (AEP) and Constellation Energy Corp (CEG) are both filed with the SEC under Electric Services. CEG is 1.5× AEP's size by market cap ($100.1B against $66.8B); CEG trades at the higher fiscal-year P/E (38.2× against 18.4×); AEP reports the higher net margin (16.9% against 9.1%); AEP grew sales faster over three years (+3.7% against +1.5%); and over the past year AEP returned +12.0% against CEG's -13.0%.
| AEP | CEG | |
|---|---|---|
| Last close | $122.31 | $276.75 |
| Market cap | $66.8B | $100.1B |
| P/E (FY) | 18.4× | 38.2× |
| P/S | 3.1× | 3.9× |
| EV/EBITDA | 13.2× | 18.2× |
| Operating margin | 24.3% | 12.1% |
| Net margin | 16.9% | 9.1% |
| Return on equity | 12.7% | 16.8% |
| Sales growth (3y) | +3.7% | +1.5% |
| EPS growth (3y) | +14.0% | — |
| Dividend yield | 3.0% | 0.5% |
| 1-year return | +12.0% | -13.0% |
Screener snapshot — prices as of 2026-08-28. Each side's last close is the most recent session the snapshot holds for that company, which can be an earlier one, and its 1-year return is measured to that close. Market caps struck on 2026-08-27. Last close, market cap and the 1-year return are price figures; every other row is computed over the company's latest filed fiscal year — FY2025 (ended 2025-12-31) for both. — not published for this company. A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined on the filed basis — EV/EBITDA is not printed on non-positive EBITDA, and return on equity is not computed on a zero or negative equity base.
Who holds them, and who has traded them
| AEP | CEG | |
|---|---|---|
| Institutional holders (13F) | 1,910 | 1,883 |
| Congressional trades disclosed (180d) | 1 | 1 |
| Executive-branch officials on file — trades disclosed (180d) | 6 | 8 |
Counts only. The congressional figures count transactions dated in the trailing 180 days and disclosed in STOCK Act periodic transaction reports; amounts are filed as ranges and are never summed. The executive-branch figures count the same window of transactions, and they are scoped to one roster. The officials OGE posts for direct download.
AEP vs CEG: common questions
- Is AEP bigger than CEG?
- CEG carries the larger market cap — $100.1B against $66.8B, both struck on 2026-08-27.
- Which trades at a higher P/E, AEP or CEG?
- CEG, at a fiscal-year 38.2× against 18.4× for AEP. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
- How have AEP and CEG performed over the past year?
- AEP returned +12.0% and CEG -13.0%, measured on the trailing calendar year to the last close.
- How many institutions hold AEP and CEG?
- 1,910 13F filers report a position in AEP and 1,883 in CEG, on the latest quarter in the panel.
- Are AEP and CEG in the same industry?
- Both are filed with the SEC under Electric Services, which is the classification this pairing is built on.
AEP overview → · CEG overview → · AEP institutional ownership → · CEG institutional ownership → · Congress and AEP → · Congress and CEG → · Executive branch and AEP → · Executive branch and CEG →
More in Electric Services: AEP vs D · AEP vs ETR · AEP vs NEE · AEP vs SO
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Source: SPZCO — https://spzco.com/vs/aep-vs-ceg