CMT vs JRVR: Correlation
Measured on weekly returns over the past three years, Core Molding Technologies Inc (CMT) and James River Group Holdings, Inc. (JRVR) carry a correlation of 0.42, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMT and JRVR?
Across a 3-year window, the weekly returns of CMT and JRVR correlate at 0.42, moderate. The past 12 months show a weaker link (0.31) than the 3-year average (0.42). Stretching to 5 years gives 0.33, with an annualized covariance of 875.0 %².
Within CMT's tracked universe of 13 assets, JRVR comes in at #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months CMT outperformed by 56.9 percentage points (+30.5% for CMT against -26.4% for JRVR).
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.
CMT vs JRVR: side by side
| CMT (Core Molding Technologies Inc) | JRVR (James River Group Holdings, Inc.) | |
|---|---|---|
| 1-year return | +30.5% | -26.4% |
| 5-year return | +80.4% | -88.2% |
| Volatility (ann.) | 40.3% | 51.3% |
| Beta vs S&P 500 | 0.39 | 0.55 |
| Max drawdown (3Y) | -56.0% | -77.1% |
| Market cap | $0.2B | $0.2B |
| P/E (trailing) | 29.8 | 9.4 |
| Dividend yield | 0.00% | 0.97% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CMT | JRVR |
|---|---|---|
| 2022 | +52.6% | -26.8% |
| 2023 | +42.6% | -55.2% |
| 2024 | -10.7% | -46.2% |
| 2025 | +21.2% | +31.6% |
| 2026 | +24.7% | -35.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMT and JRVR good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CMT and JRVR?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.31 over the last year and 0.33 over 5 years.
Is JRVR a good diversifier for CMT?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
On the −1 to +1 scale, 0.42 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/cmt-vs-jrvr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cmt-vs-jrvr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CMT correlations · JRVR correlations
