JMSB vs SMBC: Correlation
Measured on weekly returns over the past three years, John Marshall Bancorp, Inc. (JMSB) and Southern Missouri Bancorp, Inc. (SMBC) carry a correlation of 0.67, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are JMSB and SMBC?
Across a 3-year window, the weekly returns of JMSB and SMBC correlate at 0.67, strong. Lately the two have drifted apart, with the 1-year correlation at 0.55 versus 0.67 over 3 years. Stretching to 5 years gives 0.46, with an annualized covariance of 626.5 %².
Within JMSB's tracked universe of 10 assets, SMBC comes in at #5 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SMBC ahead by 16.9 points (+13.8% versus +30.7%).
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.
JMSB vs SMBC: side by side
| JMSB (John Marshall Bancorp, Inc.) | SMBC (Southern Missouri Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +13.8% | +30.7% |
| 5-year return | +32.1% | +79.4% |
| Volatility (ann.) | 31.7% | 29.4% |
| Beta vs S&P 500 | 0.65 | 0.81 |
| Max drawdown (3Y) | -45.4% | -29.2% |
| Market cap | $0.3B | $0.8B |
| P/E (trailing) | 13.1 | 11.6 |
| Dividend yield | 0.79% | 1.32% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | JMSB | SMBC |
|---|---|---|
| 2022 | +45.8% | -10.7% |
| 2023 | -20.8% | +18.9% |
| 2024 | -9.7% | +9.4% |
| 2025 | +1.2% | +4.8% |
| 2026 | +14.5% | +27.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are JMSB and SMBC good diversifiers for each other?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between JMSB and SMBC?
Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.55 over the last year and 0.46 over 5 years.
Is SMBC a good diversifier for JMSB?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.67 mean?
A reading of 0.67 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/jmsb-vs-smbc.json
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[](https://www.pairbook.io/pair/jmsb-vs-smbc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: JMSB correlations · SMBC correlations
