ACH vs DFSC: Correlation
How closely do Accendra Health, Inc. (ACH) and DEFSEC Technologies Inc. (DFSC) trade together? Their weekly returns over three years give a correlation of -0.27, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACH and DFSC?
Across a 3-year window, the weekly returns of ACH and DFSC correlate at -0.27, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.50) than the 3-year average (-0.27). Stretching to 5 years gives 0.04, with an annualized covariance of -3676.0 %².
Within ACH's tracked universe of 16 assets, DFSC comes in at #8 by 3-year correlation. The last year tells two different stories: DFSC led by 31.2 percentage points, -75.3% for ACH against -44.1% for DFSC. Note the risk asymmetry: DFSC runs 1.7 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.
ACH vs DFSC: side by side
| ACH (Accendra Health, Inc.) | DFSC (DEFSEC Technologies Inc.) | |
|---|---|---|
| 1-year return | -75.3% | -44.1% |
| 5-year return | -96.8% | -100.0% |
| Volatility (ann.) | 89.1% | 152.6% |
| Beta vs S&P 500 | 1.37 | 0.90 |
| Max drawdown (3Y) | -96.6% | -99.9% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACH | DFSC |
|---|---|---|
| 2022 | -55.1% | -96.2% |
| 2023 | -1.3% | -65.1% |
| 2024 | -32.2% | -92.2% |
| 2025 | -78.6% | -88.4% |
| 2026 | -56.8% | +9.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACH and DFSC good diversifiers for each other?
By historical standards, yes. A correlation of -0.27 means the two rarely move for the same reasons.
FAQ
What is the correlation between ACH and DFSC?
Using weekly returns as of 2026-08-27: -0.27 over 3 years, with -0.50 over the last year and 0.04 over 5 years.
Is DFSC a good diversifier for ACH?
By historical standards, yes. A correlation of -0.27 means the two rarely move for the same reasons.
What does a correlation of -0.27 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/ach-vs-dfsc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ach-vs-dfsc/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ACH correlations · DFSC correlations
