GEOS vs LARK: Correlation
Measured on weekly returns over the past three years, Geospace Technologies Corporation (GEOS) and Landmark Bancorp Inc. (LARK) carry a correlation of -0.28, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GEOS and LARK?
Across a 3-year window, the weekly returns of GEOS and LARK correlate at -0.28, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.45) runs below the 3-year figure (-0.28). Stretching to 5 years gives -0.20, with an annualized covariance of -622.6 %².
LARK is close to the least connected end of GEOS's tracked universe, ranking #15 of 15. Correlation aside, the last 12 months split them widely, with LARK ahead by 102.4 points (-74.2% versus +28.2%). One caveat on sizing: GEOS is 3.3 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.
GEOS vs LARK: side by side
| GEOS (Geospace Technologies Corporation) | LARK (Landmark Bancorp Inc.) | |
|---|---|---|
| 1-year return | -74.2% | +28.2% |
| 5-year return | -48.1% | +66.0% |
| Volatility (ann.) | 86.6% | 26.0% |
| Beta vs S&P 500 | 0.66 | 0.35 |
| Max drawdown (3Y) | -81.9% | -20.7% |
| Market cap | $0.1B | $0.2B |
| P/E (trailing) | – | 9.8 |
| Dividend yield | 0.00% | 2.57% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GEOS | LARK |
|---|---|---|
| 2022 | -36.9% | -18.5% |
| 2023 | +207.1% | -4.2% |
| 2024 | -22.7% | +32.6% |
| 2025 | +68.8% | +18.2% |
| 2026 | -69.1% | +23.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GEOS and LARK good diversifiers for each other?
Yes. With a correlation of -0.28, GEOS and LARK have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GEOS and LARK?
As of 2026-08-27, the correlation of weekly returns between GEOS and LARK is -0.28 over 3 years, -0.45 over 1 year and -0.20 over 5 years.
Is LARK a good diversifier for GEOS?
Yes. With a correlation of -0.28, GEOS and LARK have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.28 mean?
A reading of -0.28 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/geos-vs-lark.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/geos-vs-lark/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: GEOS correlations · LARK correlations
