ED vs POR: Correlation
Measured on weekly returns over the past three years, Consolidated Edison (ED) and Portland General Electric Co (POR) carry a correlation of 0.69, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ED and POR?
On 3 years of weekly data the ED/POR correlation comes out at 0.69, strong. The relationship has been stable: the 1-year correlation (0.75) sits close to the 3-year figure. The 5-year figure is 0.71, and annualized covariance runs at 210.5 %².
Within ED's tracked universe of 105 assets, POR comes in at #15 by 3-year correlation. Over the last 12 months POR came out ahead by 10.8 percentage points (+10.2% against +21.0%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
ED vs POR: side by side
| ED (Consolidated Edison) | POR (Portland General Electric Co) | |
|---|---|---|
| 1-year return | +10.2% | +21.0% |
| 5-year return | +67.5% | +20.7% |
| Volatility (ann.) | 16.5% | 18.5% |
| Beta vs S&P 500 | -0.21 | 0.10 |
| Max drawdown (3Y) | -17.4% | -16.3% |
| Market cap | $39.5B | $5.9B |
| P/E (trailing) | 17.5 | 22.2 |
| Dividend yield | 3.22% | 4.24% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | ED | POR |
|---|---|---|
| 2022 | +15.7% | -4.0% |
| 2023 | -1.1% | -7.7% |
| 2024 | +1.5% | +5.3% |
| 2025 | +15.1% | +15.4% |
| 2026 | +10.1% | +6.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ED and POR good diversifiers for each other?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ED and POR?
The ED/POR correlation stands at 0.69 on a 3-year window (1 year: 0.75, 5 years: 0.71), computed from weekly returns as of 2026-08-27.
Is POR a good diversifier for ED?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.69 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ed-vs-por.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ed-vs-por/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ED correlations · POR correlations
