ACGL vs AFL: Correlation
Measured on weekly returns over the past three years, Arch Capital Group (ACGL) and Aflac (AFL) carry a correlation of 0.59, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACGL and AFL?
Over the past 3 years, ACGL and AFL moved with a correlation of 0.59, which is moderate. The relationship has been stable: the 1-year correlation (0.62) sits close to the 3-year figure. Over 5 years the correlation is 0.61, and the annualized covariance of weekly returns is 245.4 %².
Among the 36 assets we track against ACGL, AFL ranks #10 by 3-year correlation. Neither side won the trailing year by much: +7.7% against +10.8%. On a rolling one-year basis the correlation drifted between 0.34 and 0.74, a moderate band.
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 AFL: side by side
| ACGL (Arch Capital Group) | AFL (Aflac) | |
|---|---|---|
| 1-year return | +7.7% | +10.8% |
| 5-year return | +151.8% | +131.3% |
| Volatility (ann.) | 21.5% | 19.2% |
| Beta vs S&P 500 | 0.28 | 0.36 |
| Max drawdown (3Y) | -22.4% | -13.6% |
| Market cap | $33.7B | $58.4B |
| P/E (trailing) | 7.9 | 12.6 |
| Dividend yield | 0.00% | 2.03% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | ACGL | AFL |
|---|---|---|
| 2022 | +41.2% | +26.4% |
| 2023 | +18.3% | +17.4% |
| 2024 | +30.8% | +28.1% |
| 2025 | +3.9% | +8.9% |
| 2026 | +3.0% | +7.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACGL and AFL good diversifiers for each other?
To a limited degree. At 0.59 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 AFL?
The ACGL/AFL correlation stands at 0.59 on a 3-year window (1 year: 0.62, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is AFL a good diversifier for ACGL?
To a limited degree. At 0.59 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 0.59 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-afl.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/acgl-vs-afl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACGL correlations · AFL correlations
