CTSO vs JHX: Correlation
Cytosorbents Corporation (CTSO) and James Hardie Industries plc. (JHX) show a moderate relationship: their 3-year correlation of weekly returns is 0.35.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTSO and JHX?
Over the past 3 years, CTSO and JHX moved with a correlation of 0.35, which is moderate. Recent behaviour matches the longer record: 0.28 over 1 year against 0.35 over 3. Over 5 years the correlation is 0.35, and the annualized covariance of weekly returns is 1228.7 %².
In CTSO's tracked universe of 10 assets, JHX sits right near the top at #1. Their recent paths diverged sharply: over the last 12 months JHX outperformed by 109.5 percentage points (-63.4% for CTSO against +46.1% for JHX). One caveat on sizing: CTSO is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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 JHX: side by side
| CTSO (Cytosorbents Corporation) | JHX (James Hardie Industries plc.) | |
|---|---|---|
| 1-year return | -63.4% | +46.1% |
| 5-year return | -96.4% | -21.2% |
| Volatility (ann.) | 75.9% | 46.3% |
| Beta vs S&P 500 | 0.98 | 1.43 |
| Max drawdown (3Y) | -87.9% | -60.3% |
| Market cap | – | $17.3B |
| P/E (trailing) | – | 135.3 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTSO | JHX |
|---|---|---|
| 2022 | -63.0% | -55.4% |
| 2023 | -28.4% | +115.6% |
| 2024 | -18.0% | -20.3% |
| 2025 | -29.8% | -32.7% |
| 2026 | -46.7% | +43.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTSO and JHX good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CTSO and JHX?
As of 2026-08-27, the correlation of weekly returns between CTSO and JHX is 0.35 over 3 years, 0.28 over 1 year and 0.35 over 5 years.
Is JHX a good diversifier for CTSO?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.35 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/ctso-vs-jhx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ctso-vs-jhx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CTSO correlations · JHX correlations
