CAH vs RLI: Correlation
How closely do Cardinal Health (CAH) and RLI Corp. (RLI) trade together? Their weekly returns over three years give a correlation of 0.40, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CAH and RLI?
Across a 3-year window, the weekly returns of CAH and RLI correlate at 0.40, moderate. Recent behaviour matches the longer record: 0.43 over 1 year against 0.40 over 3. Stretching to 5 years gives 0.36, with an annualized covariance of 213.8 %².
Within CAH's tracked universe of 32 assets, RLI comes in at #5 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months CAH outperformed by 57.3 percentage points (+59.2% for CAH against +1.9% for RLI).
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.
CAH vs RLI: side by side
| CAH (Cardinal Health) | RLI (RLI Corp.) | |
|---|---|---|
| 1-year return | +59.2% | +1.9% |
| 5-year return | +409.0% | +46.7% |
| Volatility (ann.) | 24.2% | 22.2% |
| Beta vs S&P 500 | 0.31 | 0.18 |
| Max drawdown (3Y) | -20.4% | -43.5% |
| Market cap | $54.7B | $5.9B |
| P/E (trailing) | 33.0 | 13.5 |
| Dividend yield | 0.86% | 1.02% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | CAH | RLI |
|---|---|---|
| 2022 | +54.1% | +24.8% |
| 2023 | +34.1% | +3.8% |
| 2024 | +19.0% | +27.6% |
| 2025 | +76.3% | -19.1% |
| 2026 | +15.2% | +5.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CAH and RLI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CAH and RLI?
The CAH/RLI correlation stands at 0.40 on a 3-year window (1 year: 0.43, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is RLI a good diversifier for CAH?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.40 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cah-vs-rli.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cah-vs-rli/)
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Related comparisons
Hubs: CAH correlations · RLI correlations
