USAR vs WRB: Correlation
USA Rare Earth, Inc. (USAR) and W. R. Berkley Corporation (WRB) show a negative relationship: their 3-year correlation of weekly returns is -0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are USAR and WRB?
On 3 years of weekly data the USAR/WRB correlation comes out at -0.25, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.29) sits close to the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at -550.1 %².
Out of 34 assets tracked against USAR, WRB lands near the bottom at #33. The last year tells two different stories: USAR led by 24.7 percentage points, +22.7% for USAR against -2.0% for WRB. One caveat on sizing: USAR is 4.4 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
USAR vs WRB: side by side
| USAR (USA Rare Earth, Inc.) | WRB (W. R. Berkley Corporation) | |
|---|---|---|
| 1-year return | +22.7% | -2.0% |
| 5-year return | n/a | +130.5% |
| Volatility (ann.) | 98.3% | 22.5% |
| Beta vs S&P 500 | -0.14 | 0.19 |
| Max drawdown (3Y) | -69.2% | -17.6% |
| Market cap | $4.7B | $25.4B |
| P/E (trailing) | – | 14.1 |
| Dividend yield | 0.00% | 0.54% |
| Sector / category | US Listed | Financials |
Year-by-year returns
| Year | USAR | WRB |
|---|---|---|
| 2022 | – | +33.9% |
| 2023 | – | +0.2% |
| 2024 | +11.1% | +27.2% |
| 2025 | +3.7% | +23.0% |
| 2026 | +61.8% | -1.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are USAR and WRB good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between USAR and WRB?
Using weekly returns as of 2026-08-27: -0.25 over 3 years, with -0.29 over the last year and n/a over 5 years.
Is WRB a good diversifier for USAR?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 mean?
A reading of -0.25 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/usar-vs-wrb.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: USAR correlations · WRB correlations
