ACFN vs CLAR: Correlation
How closely do Acorn Energy, Inc. (ACFN) and Clarus Corporation (CLAR) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACFN and CLAR?
Over the past 3 years, ACFN and CLAR moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.04) runs above the 3-year figure (-0.22). Over 5 years the correlation is -0.10, and the annualized covariance of weekly returns is -772.2 %².
CLAR is close to the least connected end of ACFN's tracked universe, ranking #10 of 14. The last year tells two different stories: CLAR led by 32.3 percentage points, -27.0% for ACFN against +5.3% for CLAR. One caveat on sizing: ACFN is 1.8 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.
ACFN vs CLAR: side by side
| ACFN (Acorn Energy, Inc.) | CLAR (Clarus Corporation) | |
|---|---|---|
| 1-year return | -27.0% | +5.3% |
| 5-year return | +122.5% | -85.0% |
| Volatility (ann.) | 81.3% | 44.2% |
| Beta vs S&P 500 | 0.68 | 1.03 |
| Max drawdown (3Y) | -58.1% | -64.4% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | 33.9 | – |
| Dividend yield | 0.00% | 2.68% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACFN | CLAR |
|---|---|---|
| 2022 | -44.4% | -71.5% |
| 2023 | +8.8% | -10.8% |
| 2024 | +193.8% | -33.4% |
| 2025 | -15.6% | -23.6% |
| 2026 | +36.8% | +15.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACFN and CLAR good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between ACFN and CLAR?
The ACFN/CLAR correlation stands at -0.22 on a 3-year window (1 year: 0.04, 5 years: -0.10), computed from weekly returns as of 2026-08-27.
Is CLAR a good diversifier for ACFN?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 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/acfn-vs-clar.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acfn-vs-clar/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACFN correlations · CLAR correlations
