AEE vs COR: Correlation
How closely do Ameren (AEE) and Cencora (COR) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEE and COR?
On 3 years of weekly data the AEE/COR correlation comes out at 0.42, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.54 versus 0.42 over 3 years. The 5-year figure is 0.45, and annualized covariance runs at 164.2 %².
By 3-year correlation, COR places #21 of the 35 assets tracked against AEE. Their 12-month results are close: +8.8% for AEE against +11.4% for COR. On a rolling one-year basis the correlation drifted between 0.25 and 0.60, 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.
AEE vs COR: side by side
| AEE (Ameren) | COR (Cencora) | |
|---|---|---|
| 1-year return | +8.8% | +11.4% |
| 5-year return | +39.7% | +188.6% |
| Volatility (ann.) | 17.8% | 21.9% |
| Beta vs S&P 500 | 0.10 | 0.08 |
| Max drawdown (3Y) | -16.5% | -32.4% |
| Market cap | $29.6B | $61.3B |
| P/E (trailing) | 19.0 | 24.3 |
| Dividend yield | 2.71% | 0.72% |
| Sector / category | Utilities | Health Care |
Year-by-year returns
| Year | AEE | COR |
|---|---|---|
| 2022 | +2.5% | +26.3% |
| 2023 | -16.1% | +25.3% |
| 2024 | +27.5% | +10.4% |
| 2025 | +15.3% | +51.5% |
| 2026 | +8.4% | -4.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEE and COR good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between AEE and COR?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.54 over the last year and 0.45 over 5 years.
Is COR a good diversifier for AEE?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
A reading of 0.42 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: AEE correlations · COR correlations
