PGR vs WRB: Correlation
Progressive Corporation (PGR) and W. R. Berkley Corporation (WRB) show a moderate relationship: their 3-year correlation of weekly returns is 0.55.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PGR and WRB?
Across a 3-year window, the weekly returns of PGR and WRB correlate at 0.55, moderate. Recent behaviour matches the longer record: 0.55 over 1 year against 0.55 over 3. Stretching to 5 years gives 0.50, with an annualized covariance of 289.4 %².
By 3-year correlation, WRB places #4 of the 36 assets tracked against PGR. Neither side won the trailing year by much: -5.3% against -2.0%. On a rolling one-year basis the correlation drifted between 0.35 and 0.69, 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.
PGR vs WRB: side by side
| PGR (Progressive Corporation) | WRB (W. R. Berkley Corporation) | |
|---|---|---|
| 1-year return | -5.3% | -2.0% |
| 5-year return | +153.0% | +130.5% |
| Volatility (ann.) | 23.6% | 22.5% |
| Beta vs S&P 500 | 0.32 | 0.19 |
| Max drawdown (3Y) | -30.4% | -17.6% |
| Market cap | $126.5B | $25.4B |
| P/E (trailing) | 10.9 | 14.1 |
| Dividend yield | 0.18% | 0.54% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | PGR | WRB |
|---|---|---|
| 2022 | +26.8% | +33.9% |
| 2023 | +23.2% | +0.2% |
| 2024 | +51.4% | +27.2% |
| 2025 | -3.0% | +23.0% |
| 2026 | +1.7% | -1.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PGR and WRB good diversifiers for each other?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between PGR and WRB?
The PGR/WRB correlation stands at 0.55 on a 3-year window (1 year: 0.55, 5 years: 0.50), computed from weekly returns as of 2026-08-27.
Is WRB a good diversifier for PGR?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
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/pgr-vs-wrb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pgr-vs-wrb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PGR correlations · WRB correlations