CB vs WRB: Correlation
Measured on weekly returns over the past three years, Chubb Limited (CB) and W. R. Berkley Corporation (WRB) carry a correlation of 0.63, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CB and WRB?
Across a 3-year window, the weekly returns of CB and WRB correlate at 0.63, strong. Little has changed lately, as the 1-year reading of 0.68 lands near the 3-year figure. Stretching to 5 years gives 0.63, with an annualized covariance of 249.3 %².
Within CB's tracked universe of 37 assets, WRB comes in at #10 by 3-year correlation. The last year tells two different stories: CB led by 26.7 percentage points, +24.7% for CB against -2.0% for WRB. The rolling one-year correlation stayed in a tight band between 0.52 and 0.67 over the past three years, which points to a structural rather than episodic relationship.
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.
CB vs WRB: side by side
| CB (Chubb Limited) | WRB (W. R. Berkley Corporation) | |
|---|---|---|
| 1-year return | +24.7% | -2.0% |
| 5-year return | +96.8% | +130.5% |
| Volatility (ann.) | 17.7% | 22.5% |
| Beta vs S&P 500 | 0.17 | 0.19 |
| Max drawdown (3Y) | -14.4% | -17.6% |
| Market cap | $130.5B | $25.4B |
| P/E (trailing) | 12.2 | 14.1 |
| Dividend yield | 1.14% | 0.54% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | CB | WRB |
|---|---|---|
| 2022 | +16.0% | +33.9% |
| 2023 | +4.2% | +0.2% |
| 2024 | +23.9% | +27.2% |
| 2025 | +13.7% | +23.0% |
| 2026 | +9.1% | -1.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CB and WRB good diversifiers for each other?
To a limited degree. At 0.63 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between CB and WRB?
As of 2026-08-27, the correlation of weekly returns between CB and WRB is 0.63 over 3 years, 0.68 over 1 year and 0.63 over 5 years.
Is WRB a good diversifier for CB?
To a limited degree. At 0.63 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.63 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/cb-vs-wrb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cb-vs-wrb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CB correlations · WRB correlations
