CATX vs RYM: Correlation
How closely do Perspective Therapeutics, Inc. (CATX) and RYTHM, Inc. (RYM) 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 CATX and RYM?
Across a 3-year window, the weekly returns of CATX and RYM correlate at -0.27, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.07) runs above the 3-year figure (-0.27). Stretching to 5 years gives -0.17, with an annualized covariance of -5927.3 %².
RYM is close to the least connected end of CATX's tracked universe, ranking #11 of 14. On 12-month performance CATX holds a 14.3-point edge, -11.9% against -26.2%. Note the risk asymmetry: RYM runs 2.0 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.
CATX vs RYM: side by side
| CATX (Perspective Therapeutics, Inc.) | RYM (RYTHM, Inc.) | |
|---|---|---|
| 1-year return | -11.9% | -26.2% |
| 5-year return | -49.5% | -100.0% |
| Volatility (ann.) | 105.9% | 208.3% |
| Beta vs S&P 500 | 1.10 | 2.05 |
| Max drawdown (3Y) | -90.7% | -94.4% |
| 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 | RYM |
|---|---|---|
| 2022 | -35.9% | -99.6% |
| 2023 | +60.0% | -81.1% |
| 2024 | -20.2% | +53.9% |
| 2025 | -13.8% | -26.4% |
| 2026 | +15.6% | +5.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CATX and RYM good diversifiers for each other?
Yes. With a correlation of -0.27, CATX and RYM have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CATX and RYM?
Using weekly returns as of 2026-08-27: -0.27 over 3 years, with 0.07 over the last year and -0.17 over 5 years.
Is RYM a good diversifier for CATX?
Yes. With a correlation of -0.27, CATX and RYM have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.27 mean?
On the −1 to +1 scale, -0.27 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-rym.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: CATX correlations · RYM correlations
