GNRC vs SMTK: Correlation
How closely do Generac (GNRC) and SmartKem, Inc. (SMTK) trade together? Their weekly returns over three years give a correlation of -0.14, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GNRC and SMTK?
Over the past 3 years, GNRC and SMTK moved with a correlation of -0.14, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.19 lands near the 3-year figure. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -982.3 %².
Within GNRC's tracked universe of 35 assets, SMTK comes in at #28 by 3-year correlation. The last year tells two different stories: GNRC led by 94.6 percentage points, +5.5% for GNRC against -89.1% for SMTK. One caveat on sizing: SMTK is 3.4 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.
GNRC vs SMTK: side by side
| GNRC (Generac) | SMTK (SmartKem, Inc.) | |
|---|---|---|
| 1-year return | +5.5% | -89.1% |
| 5-year return | -55.4% | n/a |
| Volatility (ann.) | 46.1% | 155.8% |
| Beta vs S&P 500 | 1.35 | -0.16 |
| Max drawdown (3Y) | -47.8% | -99.2% |
| Market cap | $11.6B | – |
| P/E (trailing) | 47.4 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | GNRC | SMTK |
|---|---|---|
| 2022 | -71.4% | – |
| 2023 | +28.4% | – |
| 2024 | +20.0% | – |
| 2025 | -12.0% | -63.3% |
| 2026 | +44.7% | -93.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GNRC and SMTK good diversifiers for each other?
By historical standards, yes. A correlation of -0.14 means the two rarely move for the same reasons.
FAQ
What is the correlation between GNRC and SMTK?
The GNRC/SMTK correlation stands at -0.14 on a 3-year window (1 year: -0.19, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is SMTK a good diversifier for GNRC?
By historical standards, yes. A correlation of -0.14 means the two rarely move for the same reasons.
What does a correlation of -0.14 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/gnrc-vs-smtk.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/gnrc-vs-smtk/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: GNRC correlations · SMTK correlations
