ALOT vs CLWT: Correlation
How closely do AstroNova, Inc. (ALOT) and Euro Tech Holdings Company Limited (CLWT) trade together? Their weekly returns over three years give a correlation of 0.41, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALOT and CLWT?
On 3 years of weekly data the ALOT/CLWT correlation comes out at 0.41, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.61 versus 0.41 over 3 years. The 5-year figure is 0.28, and annualized covariance runs at 1175.4 %².
In ALOT's tracked universe of 20 assets, CLWT sits right near the top at #3. The last year tells two different stories: ALOT led by 144.1 percentage points, +166.5% for ALOT against +22.4% for CLWT.
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.
ALOT vs CLWT: side by side
| ALOT (AstroNova, Inc.) | CLWT (Euro Tech Holdings Company Limited) | |
|---|---|---|
| 1-year return | +166.5% | +22.4% |
| 5-year return | +89.7% | -52.6% |
| Volatility (ann.) | 57.8% | 49.8% |
| Beta vs S&P 500 | 0.80 | 0.40 |
| Max drawdown (3Y) | -61.3% | -44.3% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | 83.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALOT | CLWT |
|---|---|---|
| 2022 | -5.0% | -53.6% |
| 2023 | +26.8% | +14.7% |
| 2024 | -26.1% | -11.2% |
| 2025 | -28.0% | -13.7% |
| 2026 | +235.1% | +38.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALOT and CLWT good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ALOT and CLWT?
The ALOT/CLWT correlation stands at 0.41 on a 3-year window (1 year: 0.61, 5 years: 0.28), computed from weekly returns as of 2026-08-27.
Is CLWT a good diversifier for ALOT?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.41 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/alot-vs-clwt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/alot-vs-clwt/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ALOT correlations · CLWT correlations
