ERIE vs RLI: Correlation
How closely do Erie Indemnity (ERIE) and RLI Corp. (RLI) trade together? Their weekly returns over three years give a correlation of 0.44, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ERIE and RLI?
On 3 years of weekly data the ERIE/RLI correlation comes out at 0.44, moderate. Little has changed lately, as the 1-year reading of 0.51 lands near the 3-year figure. The 5-year figure is 0.35, and annualized covariance runs at 294.5 %².
RLI is one of the assets that tracks ERIE most closely: it ranks #3 out of the 33 assets we track against ERIE. The last year tells two different stories: RLI led by 26.4 percentage points, -24.5% for ERIE against +1.9% for RLI.
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.
ERIE vs RLI: side by side
| ERIE (Erie Indemnity) | RLI (RLI Corp.) | |
|---|---|---|
| 1-year return | -24.5% | +1.9% |
| 5-year return | +61.3% | +46.7% |
| Volatility (ann.) | 30.3% | 22.2% |
| Beta vs S&P 500 | 0.37 | 0.18 |
| Max drawdown (3Y) | -60.9% | -43.5% |
| Market cap | $13.6B | $5.9B |
| P/E (trailing) | 23.4 | 13.5 |
| Dividend yield | 2.24% | 1.02% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | ERIE | RLI |
|---|---|---|
| 2022 | +32.0% | +24.8% |
| 2023 | +37.3% | +3.8% |
| 2024 | +24.7% | +27.6% |
| 2025 | -29.4% | -19.1% |
| 2026 | -8.0% | +5.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ERIE and RLI good diversifiers for each other?
Reasonably. At 0.44, ERIE and RLI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ERIE and RLI?
Using weekly returns as of 2026-08-27: 0.44 over 3 years, with 0.51 over the last year and 0.35 over 5 years.
Is RLI a good diversifier for ERIE?
Reasonably. At 0.44, ERIE and RLI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.44 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/erie-vs-rli.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/erie-vs-rli/)
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Related comparisons
Hubs: ERIE correlations · RLI correlations
