CTM vs HSIC: Correlation
Castellum, Inc. (CTM) and Henry Schein (HSIC) show a negative relationship: their 3-year correlation of weekly returns is -0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTM and HSIC?
Over the past 3 years, CTM and HSIC moved with a correlation of -0.25, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.09) than the 3-year average (-0.25). Over 5 years the correlation is -0.23, and the annualized covariance of weekly returns is -940.3 %².
HSIC is close to the least connected end of CTM's tracked universe, ranking #8 of 10. The last year tells two different stories: HSIC led by 71.3 percentage points, -40.4% for CTM against +30.9% for HSIC. Note the risk asymmetry: CTM runs 6.0 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.
CTM vs HSIC: side by side
| CTM (Castellum, Inc.) | HSIC (Henry Schein) | |
|---|---|---|
| 1-year return | -40.4% | +30.9% |
| 5-year return | n/a | +20.1% |
| Volatility (ann.) | 150.3% | 25.2% |
| Beta vs S&P 500 | 1.19 | 0.33 |
| Max drawdown (3Y) | -79.1% | -24.3% |
| Market cap | $0.1B | $10.1B |
| P/E (trailing) | – | 26.3 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | CTM | HSIC |
|---|---|---|
| 2022 | – | +3.0% |
| 2023 | -76.3% | -5.2% |
| 2024 | +571.1% | -8.6% |
| 2025 | -54.9% | +9.2% |
| 2026 | -32.7% | +19.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTM and HSIC good diversifiers for each other?
Yes. With a correlation of -0.25, CTM and HSIC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CTM and HSIC?
As of 2026-08-27, the correlation of weekly returns between CTM and HSIC is -0.25 over 3 years, 0.09 over 1 year and -0.23 over 5 years.
Is HSIC a good diversifier for CTM?
Yes. With a correlation of -0.25, CTM and HSIC have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.25 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/ctm-vs-hsic.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ctm-vs-hsic/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CTM correlations · HSIC correlations
