APT vs CNSP: Correlation
How closely do Alpha Pro Tech, Ltd. (APT) and CNS Pharmaceuticals, Inc. (CNSP) trade together? Their weekly returns over three years give a correlation of 0.46, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are APT and CNSP?
On 3 years of weekly data the APT/CNSP correlation comes out at 0.46, moderate. The past 12 months show a tighter link (0.77) than the 3-year average (0.46). The 5-year figure is 0.29, and annualized covariance runs at 3734.9 %².
Few assets follow APT as closely as CNSP, which ranks #2 of 12 tracked partners. Correlation aside, the last 12 months split them widely, with APT ahead by 25.1 points (+12.8% versus -12.3%). Risk is not evenly split, since CNSP carries 4.6 times the volatility of the other side.
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.
APT vs CNSP: side by side
| APT (Alpha Pro Tech, Ltd.) | CNSP (CNS Pharmaceuticals, Inc.) | |
|---|---|---|
| 1-year return | +12.8% | -12.3% |
| 5-year return | -33.5% | -100.0% |
| Volatility (ann.) | 42.0% | 191.6% |
| Beta vs S&P 500 | 0.65 | 2.85 |
| Max drawdown (3Y) | -39.0% | -100.0% |
| Market cap | $0.1B | – |
| P/E (trailing) | 14.0 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | APT | CNSP |
|---|---|---|
| 2022 | -32.7% | -88.6% |
| 2023 | +31.6% | -47.1% |
| 2024 | +0.0% | -99.8% |
| 2025 | -16.1% | -92.7% |
| 2026 | +23.2% | +5.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are APT and CNSP good diversifiers for each other?
A fair diversifier. At 0.46, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between APT and CNSP?
The APT/CNSP correlation stands at 0.46 on a 3-year window (1 year: 0.77, 5 years: 0.29), computed from weekly returns as of 2026-08-27.
Is CNSP a good diversifier for APT?
A fair diversifier. At 0.46, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.46 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/apt-vs-cnsp.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/apt-vs-cnsp/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: APT correlations · CNSP correlations
