ASTL vs SUPX: Correlation
Algoma Steel Group Inc. (ASTL) and SuperX AI Technology Limited (SUPX) show a negative relationship: their 3-year correlation of weekly returns is -0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASTL and SUPX?
On 3 years of weekly data the ASTL/SUPX correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.17 lands near the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at -1371.5 %².
SUPX is close to the least connected end of ASTL's tracked universe, ranking #8 of 10. The last year tells two different stories: ASTL led by 64.0 percentage points, -13.0% for ASTL against -77.0% for SUPX. Note the risk asymmetry: SUPX runs 2.1 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
ASTL vs SUPX: side by side
| ASTL (Algoma Steel Group Inc.) | SUPX (SuperX AI Technology Limited) | |
|---|---|---|
| 1-year return | -13.0% | -77.0% |
| 5-year return | -57.3% | n/a |
| Volatility (ann.) | 53.9% | 115.6% |
| Beta vs S&P 500 | 1.08 | 0.01 |
| Max drawdown (3Y) | -72.9% | -92.3% |
| Market cap | $0.5B | $0.4B |
| P/E (trailing) | – | – |
| Dividend yield | 0.02% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASTL | SUPX |
|---|---|---|
| 2022 | -39.4% | – |
| 2023 | +62.5% | – |
| 2024 | -0.2% | – |
| 2025 | -57.4% | +318.1% |
| 2026 | +4.6% | -37.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASTL and SUPX good diversifiers for each other?
Yes. With a correlation of -0.21, ASTL and SUPX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ASTL and SUPX?
The ASTL/SUPX correlation stands at -0.21 on a 3-year window (1 year: -0.17, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is SUPX a good diversifier for ASTL?
Yes. With a correlation of -0.21, ASTL and SUPX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.21 mean?
On the −1 to +1 scale, -0.21 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/astl-vs-supx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/astl-vs-supx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ASTL correlations · SUPX correlations
