CTSO vs MRX: Correlation
How closely do Cytosorbents Corporation (CTSO) and Marex Group Limited (MRX) trade together? Their weekly returns over three years give a correlation of -0.24, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTSO and MRX?
Over the past 3 years, CTSO and MRX moved with a correlation of -0.24, which is negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.04) runs above the 3-year figure (-0.24). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -697.1 %².
Out of 10 assets tracked against CTSO, MRX lands near the bottom at #8. Correlation aside, the last 12 months split them widely, with MRX ahead by 163.0 points (-63.4% versus +99.6%). Risk is not evenly split, since CTSO carries 1.9 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.
CTSO vs MRX: side by side
| CTSO (Cytosorbents Corporation) | MRX (Marex Group Limited) | |
|---|---|---|
| 1-year return | -63.4% | +99.6% |
| 5-year return | -96.4% | n/a |
| Volatility (ann.) | 75.9% | 39.3% |
| Beta vs S&P 500 | 0.98 | 0.44 |
| Max drawdown (3Y) | -87.9% | -41.1% |
| Market cap | – | – |
| P/E (trailing) | – | 14.6 |
| Dividend yield | 0.00% | 1.04% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTSO | MRX |
|---|---|---|
| 2022 | -63.0% | – |
| 2023 | -28.4% | – |
| 2024 | -18.0% | – |
| 2025 | -29.8% | +25.1% |
| 2026 | -46.7% | +87.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTSO and MRX good diversifiers for each other?
Yes. With a correlation of -0.24, CTSO and MRX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CTSO and MRX?
As of 2026-08-27, the correlation of weekly returns between CTSO and MRX is -0.24 over 3 years, -0.04 over 1 year and n/a over 5 years.
Is MRX a good diversifier for CTSO?
Yes. With a correlation of -0.24, CTSO and MRX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.24 mean?
A reading of -0.24 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ctso-vs-mrx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ctso-vs-mrx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CTSO correlations · MRX correlations
