COR vs ED: Correlation
How closely do Cencora (COR) and Consolidated Edison (ED) trade together? Their weekly returns over three years give a correlation of 0.41, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COR and ED?
On 3 years of weekly data the COR/ED correlation comes out at 0.41, moderate. The past 12 months show a tighter link (0.55) than the 3-year average (0.41). The 5-year figure is 0.44, and annualized covariance runs at 148.4 %².
Within COR's tracked universe of 43 assets, ED comes in at #5 by 3-year correlation. Their 12-month results are close: +11.4% for COR against +10.2% for ED. On a rolling one-year basis the correlation drifted between 0.17 and 0.54, a moderate band.
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.
COR vs ED: side by side
| COR (Cencora) | ED (Consolidated Edison) | |
|---|---|---|
| 1-year return | +11.4% | +10.2% |
| 5-year return | +188.6% | +67.5% |
| Volatility (ann.) | 21.9% | 16.5% |
| Beta vs S&P 500 | 0.08 | -0.21 |
| Max drawdown (3Y) | -32.4% | -17.4% |
| Market cap | $61.3B | $39.5B |
| P/E (trailing) | 24.3 | 17.5 |
| Dividend yield | 0.72% | 3.22% |
| Sector / category | Health Care | Utilities |
Year-by-year returns
| Year | COR | ED |
|---|---|---|
| 2022 | +26.3% | +15.7% |
| 2023 | +25.3% | -1.1% |
| 2024 | +10.4% | +1.5% |
| 2025 | +51.5% | +15.1% |
| 2026 | -4.3% | +10.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COR and ED good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between COR and ED?
As of 2026-08-27, the correlation of weekly returns between COR and ED is 0.41 over 3 years, 0.55 over 1 year and 0.44 over 5 years.
Is ED a good diversifier for COR?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.41 mean?
On the −1 to +1 scale, 0.41 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/cor-vs-ed.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cor-vs-ed/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: COR correlations · ED correlations
