ASYS vs TECK: Correlation
How closely do Amtech Systems, Inc. (ASYS) and Teck Resources Ltd (TECK) trade together? Their weekly returns over three years give a correlation of 0.34, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASYS and TECK?
Over the past 3 years, ASYS and TECK moved with a correlation of 0.34, which is moderate. The past 12 months show a tighter link (0.51) than the 3-year average (0.34). Over 5 years the correlation is 0.27, and the annualized covariance of weekly returns is 987.1 %².
Among the 10 assets we track against ASYS, TECK ranks #5 by 3-year correlation. The last year tells two different stories: ASYS led by 49.8 percentage points, +165.2% for ASYS against +115.4% for TECK. One caveat on sizing: ASYS 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.
ASYS vs TECK: side by side
| ASYS (Amtech Systems, Inc.) | TECK (Teck Resources Ltd) | |
|---|---|---|
| 1-year return | +165.2% | +115.4% |
| 5-year return | +54.0% | +233.4% |
| Volatility (ann.) | 71.9% | 40.4% |
| Beta vs S&P 500 | 0.92 | 1.47 |
| Max drawdown (3Y) | -61.3% | -46.1% |
| Market cap | $0.3B | $34.6B |
| P/E (trailing) | 56.5 | 19.3 |
| Dividend yield | 0.00% | 0.70% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASYS | TECK |
|---|---|---|
| 2022 | -23.1% | +33.8% |
| 2023 | -44.7% | +14.0% |
| 2024 | +29.8% | -2.6% |
| 2025 | +130.3% | +19.0% |
| 2026 | +26.1% | +47.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASYS and TECK good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ASYS and TECK?
Using weekly returns as of 2026-08-27: 0.34 over 3 years, with 0.51 over the last year and 0.27 over 5 years.
Is TECK a good diversifier for ASYS?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.34 mean?
A reading of 0.34 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/asys-vs-teck.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/asys-vs-teck/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ASYS correlations · TECK correlations
