ACGL vs WRB: Correlation
Arch Capital Group (ACGL) and W. R. Berkley Corporation (WRB) show a moderate relationship: their 3-year correlation of weekly returns is 0.57.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACGL and WRB?
Across a 3-year window, the weekly returns of ACGL and WRB correlate at 0.57, moderate. Recent behaviour matches the longer record: 0.66 over 1 year against 0.57 over 3. Stretching to 5 years gives 0.56, with an annualized covariance of 274.7 %².
By 3-year correlation, WRB places #13 of the 36 assets tracked against ACGL. On 12-month performance ACGL holds a 9.7-point edge, +7.7% against -2.0%. The rolling one-year correlation moved between 0.28 and 0.76 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.
ACGL vs WRB: side by side
| ACGL (Arch Capital Group) | WRB (W. R. Berkley Corporation) | |
|---|---|---|
| 1-year return | +7.7% | -2.0% |
| 5-year return | +151.8% | +130.5% |
| Volatility (ann.) | 21.5% | 22.5% |
| Beta vs S&P 500 | 0.28 | 0.19 |
| Max drawdown (3Y) | -22.4% | -17.6% |
| Market cap | $33.7B | $25.4B |
| P/E (trailing) | 7.9 | 14.1 |
| Dividend yield | 0.00% | 0.54% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | ACGL | WRB |
|---|---|---|
| 2022 | +41.2% | +33.9% |
| 2023 | +18.3% | +0.2% |
| 2024 | +30.8% | +27.2% |
| 2025 | +3.9% | +23.0% |
| 2026 | +3.0% | -1.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACGL and WRB good diversifiers for each other?
Only partially. A correlation of 0.57 means ACGL and WRB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between ACGL and WRB?
As of 2026-08-27, the correlation of weekly returns between ACGL and WRB is 0.57 over 3 years, 0.66 over 1 year and 0.56 over 5 years.
Is WRB a good diversifier for ACGL?
Only partially. A correlation of 0.57 means ACGL and WRB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.57 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.
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Related comparisons
Hubs: ACGL correlations · WRB correlations
