CAH vs WRB: Correlation
Measured on weekly returns over the past three years, Cardinal Health (CAH) and W. R. Berkley Corporation (WRB) carry a correlation of 0.37, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CAH and WRB?
Across a 3-year window, the weekly returns of CAH and WRB correlate at 0.37, moderate. Recent behaviour matches the longer record: 0.36 over 1 year against 0.37 over 3. Stretching to 5 years gives 0.40, with an annualized covariance of 202.4 %².
Among the 32 assets we track against CAH, WRB ranks #11 by 3-year correlation. The last year tells two different stories: CAH led by 61.2 percentage points, +59.2% for CAH against -2.0% for WRB. On a rolling one-year basis the correlation drifted between 0.18 and 0.59, 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.
CAH vs WRB: side by side
| CAH (Cardinal Health) | WRB (W. R. Berkley Corporation) | |
|---|---|---|
| 1-year return | +59.2% | -2.0% |
| 5-year return | +409.0% | +130.5% |
| Volatility (ann.) | 24.2% | 22.5% |
| Beta vs S&P 500 | 0.31 | 0.19 |
| Max drawdown (3Y) | -20.4% | -17.6% |
| Market cap | $54.7B | $25.4B |
| P/E (trailing) | 33.0 | 14.1 |
| Dividend yield | 0.86% | 0.54% |
| Sector / category | Health Care | Financials |
Year-by-year returns
| Year | CAH | WRB |
|---|---|---|
| 2022 | +54.1% | +33.9% |
| 2023 | +34.1% | +0.2% |
| 2024 | +19.0% | +27.2% |
| 2025 | +76.3% | +23.0% |
| 2026 | +15.2% | -1.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CAH and WRB good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.37 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CAH and WRB?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.36 over the last year and 0.40 over 5 years.
Is WRB a good diversifier for CAH?
Yes, to a useful degree: a correlation of 0.37 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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: CAH correlations · WRB correlations
