DUK vs ED: Correlation
How closely do Duke Energy (DUK) and Consolidated Edison (ED) trade together? Their weekly returns over three years give a correlation of 0.81, which is very strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DUK and ED?
Across a 3-year window, the weekly returns of DUK and ED correlate at 0.81, very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.84) sits close to the 3-year figure. Stretching to 5 years gives 0.85, with an annualized covariance of 214.1 %².
ED is one of the assets that tracks DUK most closely: it ranks #2 out of the 53 assets we track against DUK. Over the last 12 months ED came out ahead by 9.1 percentage points (+1.1% against +10.2%). Stability stands out here, with the rolling one-year correlation confined to 0.73 through 0.87.
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.
DUK vs ED: side by side
| DUK (Duke Energy) | ED (Consolidated Edison) | |
|---|---|---|
| 1-year return | +1.1% | +10.2% |
| 5-year return | +39.8% | +67.5% |
| Volatility (ann.) | 15.9% | 16.5% |
| Beta vs S&P 500 | -0.09 | -0.21 |
| Max drawdown (3Y) | -11.6% | -17.4% |
| Market cap | $94.2B | $39.5B |
| P/E (trailing) | 18.3 | 17.5 |
| Dividend yield | 3.49% | 3.22% |
| Sector / category | Utilities | Utilities |
Year-by-year returns
| Year | DUK | ED |
|---|---|---|
| 2022 | +2.0% | +15.7% |
| 2023 | -1.6% | -1.1% |
| 2024 | +15.6% | +1.5% |
| 2025 | +12.7% | +15.1% |
| 2026 | +5.8% | +10.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DUK and ED good diversifiers for each other?
No: a correlation of 0.81 means DUK and ED tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between DUK and ED?
Using weekly returns as of 2026-08-27: 0.81 over 3 years, with 0.84 over the last year and 0.85 over 5 years.
Is ED a good diversifier for DUK?
No: a correlation of 0.81 means DUK and ED tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.81 mean?
On the −1 to +1 scale, 0.81 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/duk-vs-ed.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/duk-vs-ed/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: DUK correlations · ED correlations
