COR vs EXC: Correlation
Cencora (COR) and Exelon (EXC) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COR and EXC?
On 3 years of weekly data the COR/EXC correlation comes out at 0.39, moderate. The link has tightened recently: the 1-year correlation (0.50) runs above the 3-year figure (0.39). The 5-year figure is 0.40, and annualized covariance runs at 167.4 %².
Within COR's tracked universe of 43 assets, EXC comes in at #12 by 3-year correlation. The trailing year gives COR the advantage: +11.4% versus +1.7%, a 9.7-point spread. The rolling one-year correlation moved between 0.23 and 0.53 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 EXC: side by side
| COR (Cencora) | EXC (Exelon) | |
|---|---|---|
| 1-year return | +11.4% | +1.7% |
| 5-year return | +188.6% | +48.1% |
| Volatility (ann.) | 21.9% | 19.4% |
| Beta vs S&P 500 | 0.08 | -0.05 |
| Max drawdown (3Y) | -32.4% | -18.9% |
| Market cap | $61.3B | $45.3B |
| P/E (trailing) | 24.3 | 16.3 |
| Dividend yield | 0.72% | 3.69% |
| Sector / category | Health Care | Utilities |
Year-by-year returns
| Year | COR | EXC |
|---|---|---|
| 2022 | +26.3% | +8.3% |
| 2023 | +25.3% | -14.0% |
| 2024 | +10.4% | +9.2% |
| 2025 | +51.5% | +20.0% |
| 2026 | -4.3% | +2.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COR and EXC good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between COR and EXC?
As of 2026-08-27, the correlation of weekly returns between COR and EXC is 0.39 over 3 years, 0.50 over 1 year and 0.40 over 5 years.
Is EXC a good diversifier for COR?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.39 mean?
A reading of 0.39 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cor-vs-exc.json
Embed this badge (it refreshes with the data), with attribution:
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The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: COR correlations · EXC correlations
