COR vs ORLY: Correlation
Measured on weekly returns over the past three years, Cencora (COR) and O'Reilly Automotive (ORLY) carry a correlation of 0.39, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COR and ORLY?
On 3 years of weekly data the COR/ORLY correlation comes out at 0.39, moderate. Little has changed lately, as the 1-year reading of 0.39 lands near the 3-year figure. The 5-year figure is 0.46, and annualized covariance runs at 170.0 %².
By 3-year correlation, ORLY places #13 of the 43 assets tracked against COR. Their recent paths diverged sharply: over the last 12 months COR outperformed by 27.0 percentage points (+11.4% for COR against -15.6% for ORLY). On a rolling one-year basis the correlation drifted between 0.20 and 0.53, 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 ORLY: side by side
| COR (Cencora) | ORLY (O'Reilly Automotive) | |
|---|---|---|
| 1-year return | +11.4% | -15.6% |
| 5-year return | +188.6% | +120.8% |
| Volatility (ann.) | 21.9% | 19.8% |
| Beta vs S&P 500 | 0.08 | 0.20 |
| Max drawdown (3Y) | -32.4% | -23.3% |
| Market cap | $61.3B | $71.1B |
| P/E (trailing) | 24.3 | 28.4 |
| Dividend yield | 0.72% | 0.00% |
| Sector / category | Health Care | Consumer Discretionary |
Year-by-year returns
| Year | COR | ORLY |
|---|---|---|
| 2022 | +26.3% | +19.5% |
| 2023 | +25.3% | +12.6% |
| 2024 | +10.4% | +24.8% |
| 2025 | +51.5% | +15.4% |
| 2026 | -4.3% | -3.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COR and ORLY 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 ORLY?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.39 over the last year and 0.46 over 5 years.
Is ORLY 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-orly.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cor-vs-orly/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: COR correlations · ORLY correlations
