ACGL vs BRO: Correlation
Arch Capital Group (ACGL) and Brown & Brown (BRO) show a moderate relationship: their 3-year correlation of weekly returns is 0.49.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACGL and BRO?
On 3 years of weekly data the ACGL/BRO correlation comes out at 0.49, moderate. The relationship has been stable: the 1-year correlation (0.53) sits close to the 3-year figure. The 5-year figure is 0.43, and annualized covariance runs at 257.8 %².
By 3-year correlation, BRO places #18 of the 36 assets tracked against ACGL. Correlation aside, the last 12 months split them widely, with ACGL ahead by 32.7 points (+7.7% versus -25.0%). This link changes with the market regime, having swung between 0.12 and 0.64 on a rolling one-year basis.
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 BRO: side by side
| ACGL (Arch Capital Group) | BRO (Brown & Brown) | |
|---|---|---|
| 1-year return | +7.7% | -25.0% |
| 5-year return | +151.8% | +27.5% |
| Volatility (ann.) | 21.5% | 24.4% |
| Beta vs S&P 500 | 0.28 | 0.39 |
| Max drawdown (3Y) | -22.4% | -55.8% |
| Market cap | $33.7B | $23.9B |
| P/E (trailing) | 7.9 | 23.3 |
| Dividend yield | 0.00% | 0.89% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | ACGL | BRO |
|---|---|---|
| 2022 | +41.2% | -18.4% |
| 2023 | +18.3% | +25.7% |
| 2024 | +30.8% | +44.3% |
| 2025 | +3.9% | -21.4% |
| 2026 | +3.0% | -9.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACGL and BRO good diversifiers for each other?
Reasonably. At 0.49, ACGL and BRO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ACGL and BRO?
Using weekly returns as of 2026-08-27: 0.49 over 3 years, with 0.53 over the last year and 0.43 over 5 years.
Is BRO a good diversifier for ACGL?
Reasonably. At 0.49, ACGL and BRO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.49 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/acgl-vs-bro.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/acgl-vs-bro/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ACGL correlations · BRO correlations
