ARBB vs CTSO: Correlation
Measured on weekly returns over the past three years, ARB IOT Group Limited (ARBB) and Cytosorbents Corporation (CTSO) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARBB and CTSO?
Across a 3-year window, the weekly returns of ARBB and CTSO correlate at -0.25, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.01) than the 3-year average (-0.25). Stretching to 5 years gives n/a, with an annualized covariance of -3209.3 %².
CTSO is close to the least connected end of ARBB's tracked universe, ranking #12 of 12. Their recent paths diverged sharply: over the last 12 months ARBB outperformed by 64.2 percentage points (+0.8% for ARBB against -63.4% for CTSO). Note the risk asymmetry: ARBB runs 2.2 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.
ARBB vs CTSO: side by side
| ARBB (ARB IOT Group Limited) | CTSO (Cytosorbents Corporation) | |
|---|---|---|
| 1-year return | +0.8% | -63.4% |
| 5-year return | n/a | -96.4% |
| Volatility (ann.) | 167.6% | 75.9% |
| Beta vs S&P 500 | 0.32 | 0.98 |
| Max drawdown (3Y) | -90.3% | -87.9% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ARBB | CTSO |
|---|---|---|
| 2022 | – | -63.0% |
| 2023 | – | -28.4% |
| 2024 | -80.7% | -18.0% |
| 2025 | -21.7% | -29.8% |
| 2026 | -26.0% | -46.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARBB and CTSO good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ARBB and CTSO?
The ARBB/CTSO correlation stands at -0.25 on a 3-year window (1 year: 0.01, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is CTSO a good diversifier for ARBB?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 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/arbb-vs-ctso.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/arbb-vs-ctso/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ARBB correlations · CTSO correlations
