CB vs CNA: Correlation
How closely do Chubb Limited (CB) and CNA Financial Corporation (CNA) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CB and CNA?
Across a 3-year window, the weekly returns of CB and CNA correlate at 0.67, strong. The relationship has been stable: the 1-year correlation (0.71) sits close to the 3-year figure. Stretching to 5 years gives 0.69, with an annualized covariance of 234.4 %².
Within CB's tracked universe of 37 assets, CNA comes in at #5 by 3-year correlation. The last year tells two different stories: CB led by 17.1 percentage points, +24.7% for CB against +7.6% for CNA.
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 CNA: side by side
| CB (Chubb Limited) | CNA (CNA Financial Corporation) | |
|---|---|---|
| 1-year return | +24.7% | +7.6% |
| 5-year return | +96.8% | +64.0% |
| Volatility (ann.) | 17.7% | 19.8% |
| Beta vs S&P 500 | 0.17 | 0.21 |
| Max drawdown (3Y) | -14.4% | -14.6% |
| Market cap | $130.5B | $13.2B |
| P/E (trailing) | 12.2 | 10.9 |
| Dividend yield | 1.14% | 3.80% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | CB | CNA |
|---|---|---|
| 2022 | +16.0% | +3.8% |
| 2023 | +4.2% | +7.1% |
| 2024 | +23.9% | +24.0% |
| 2025 | +13.7% | +7.0% |
| 2026 | +9.1% | +10.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CB and CNA good diversifiers for each other?
To a limited degree. At 0.67 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 CNA?
The CB/CNA correlation stands at 0.67 on a 3-year window (1 year: 0.71, 5 years: 0.69), computed from weekly returns as of 2026-08-27.
Is CNA a good diversifier for CB?
To a limited degree. At 0.67 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 0.67 mean?
A reading of 0.67 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/cb-vs-cna.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cb-vs-cna/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CB correlations · CNA correlations
