CATX vs PRFX: Correlation
How closely do Perspective Therapeutics, Inc. (CATX) and PRF Technologies Ltd. (PRFX) trade together? Their weekly returns over three years give a correlation of -0.29, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CATX and PRFX?
Across a 3-year window, the weekly returns of CATX and PRFX correlate at -0.29, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.01) runs above the 3-year figure (-0.29). Stretching to 5 years gives -0.23, with an annualized covariance of -8858.2 %².
Among the 14 assets we track against CATX, PRFX sits near the bottom by co-movement, at rank #12. Their recent paths diverged sharply: over the last 12 months CATX outperformed by 75.8 percentage points (-11.9% for CATX against -87.7% for PRFX). Risk is not evenly split, since PRFX carries 2.7 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.
CATX vs PRFX: side by side
| CATX (Perspective Therapeutics, Inc.) | PRFX (PRF Technologies Ltd.) | |
|---|---|---|
| 1-year return | -11.9% | -87.7% |
| 5-year return | -49.5% | -99.9% |
| Volatility (ann.) | 105.9% | 291.2% |
| Beta vs S&P 500 | 1.10 | 2.46 |
| Max drawdown (3Y) | -90.7% | -99.3% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CATX | PRFX |
|---|---|---|
| 2022 | -35.9% | -68.9% |
| 2023 | +60.0% | -33.4% |
| 2024 | -20.2% | -79.7% |
| 2025 | -13.8% | -80.9% |
| 2026 | +15.6% | -69.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CATX and PRFX good diversifiers for each other?
By historical standards, yes. A correlation of -0.29 means the two rarely move for the same reasons.
FAQ
What is the correlation between CATX and PRFX?
As of 2026-08-27, the correlation of weekly returns between CATX and PRFX is -0.29 over 3 years, 0.01 over 1 year and -0.23 over 5 years.
Is PRFX a good diversifier for CATX?
By historical standards, yes. A correlation of -0.29 means the two rarely move for the same reasons.
What does a correlation of -0.29 mean?
On the −1 to +1 scale, -0.29 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/catx-vs-prfx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/catx-vs-prfx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CATX correlations · PRFX correlations
