ACGL vs AIZ: Correlation
Measured on weekly returns over the past three years, Arch Capital Group (ACGL) and Assurant (AIZ) carry a correlation of 0.55, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACGL and AIZ?
Across a 3-year window, the weekly returns of ACGL and AIZ correlate at 0.55, moderate. Recent behaviour matches the longer record: 0.57 over 1 year against 0.55 over 3. Stretching to 5 years gives 0.39, with an annualized covariance of 256.2 %².
Within ACGL's tracked universe of 36 assets, AIZ comes in at #15 by 3-year correlation. The last year tells two different stories: AIZ led by 26.4 percentage points, +7.7% for ACGL against +34.1% for AIZ. Do not treat this figure as fixed: across three years the rolling one-year correlation ranged all the way from 0.04 to 0.76.
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 AIZ: side by side
| ACGL (Arch Capital Group) | AIZ (Assurant) | |
|---|---|---|
| 1-year return | +7.7% | +34.1% |
| 5-year return | +151.8% | +83.5% |
| Volatility (ann.) | 21.5% | 21.5% |
| Beta vs S&P 500 | 0.28 | 0.60 |
| Max drawdown (3Y) | -22.4% | -20.8% |
| Market cap | $33.7B | $14.1B |
| P/E (trailing) | 7.9 | 13.8 |
| Dividend yield | 0.00% | 1.19% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | ACGL | AIZ |
|---|---|---|
| 2022 | +41.2% | -18.3% |
| 2023 | +18.3% | +37.5% |
| 2024 | +30.8% | +28.5% |
| 2025 | +3.9% | +14.7% |
| 2026 | +3.0% | +19.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACGL and AIZ good diversifiers for each other?
To a limited degree. At 0.55 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 ACGL and AIZ?
As of 2026-08-27, the correlation of weekly returns between ACGL and AIZ is 0.55 over 3 years, 0.57 over 1 year and 0.39 over 5 years.
Is AIZ a good diversifier for ACGL?
To a limited degree. At 0.55 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 0.55 mean?
On the −1 to +1 scale, 0.55 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/acgl-vs-aiz.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/acgl-vs-aiz/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ACGL correlations · AIZ correlations
