COR vs WEC: Correlation
Measured on weekly returns over the past three years, Cencora (COR) and WEC Energy Group (WEC) carry a correlation of 0.41, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COR and WEC?
Over the past 3 years, COR and WEC moved with a correlation of 0.41, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.52 versus 0.41 over 3 years. Over 5 years the correlation is 0.41, and the annualized covariance of weekly returns is 151.5 %².
Within COR's tracked universe of 43 assets, WEC comes in at #7 by 3-year correlation. The trailing year gives COR the advantage: +11.4% versus +2.1%, a 9.3-point spread. The rolling one-year correlation moved between 0.19 and 0.60 over the past three years, a moderate range.
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 WEC: side by side
| COR (Cencora) | WEC (WEC Energy Group) | |
|---|---|---|
| 1-year return | +11.4% | +2.1% |
| 5-year return | +188.6% | +32.7% |
| Volatility (ann.) | 21.9% | 16.9% |
| Beta vs S&P 500 | 0.08 | 0.02 |
| Max drawdown (3Y) | -32.4% | -11.6% |
| Market cap | $61.3B | $34.6B |
| P/E (trailing) | 24.3 | 20.6 |
| Dividend yield | 0.72% | 3.43% |
| Sector / category | Health Care | Utilities |
Year-by-year returns
| Year | COR | WEC |
|---|---|---|
| 2022 | +26.3% | -0.5% |
| 2023 | +25.3% | -7.0% |
| 2024 | +10.4% | +16.1% |
| 2025 | +51.5% | +16.0% |
| 2026 | -4.3% | +3.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COR and WEC 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 WEC?
The COR/WEC correlation stands at 0.41 on a 3-year window (1 year: 0.52, 5 years: 0.41), computed from weekly returns as of 2026-08-27.
Is WEC 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.
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Related comparisons
Hubs: COR correlations · WEC correlations
