CISS vs TENX: Correlation
How closely do C3is Inc. (CISS) and Tenax Therapeutics, Inc. (TENX) trade together? Their weekly returns over three years give a correlation of -0.39, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CISS and TENX?
Over the past 3 years, CISS and TENX moved with a correlation of -0.39, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.76 versus -0.39 over 3 years. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -102986.6 %².
Among the 42 assets we track against CISS, TENX sits near the bottom by co-movement, at rank #40. The last year tells two different stories: TENX led by 36.5 percentage points, -99.5% for CISS against -63.0% for TENX. Risk is not evenly split, since CISS carries 16.5 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.
CISS vs TENX: side by side
| CISS (C3is Inc.) | TENX (Tenax Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | -99.5% | -63.0% |
| 5-year return | n/a | -99.9% |
| Volatility (ann.) | 2098.5% | 127.0% |
| Beta vs S&P 500 | 2.24 | 0.95 |
| Max drawdown (3Y) | -100.0% | -97.2% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CISS | TENX |
|---|---|---|
| 2022 | – | -89.3% |
| 2023 | – | -87.6% |
| 2024 | -98.9% | -71.9% |
| 2025 | -97.3% | +96.9% |
| 2026 | -93.4% | -82.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CISS and TENX good diversifiers for each other?
Yes. With a correlation of -0.39, CISS and TENX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CISS and TENX?
The CISS/TENX correlation stands at -0.39 on a 3-year window (1 year: -0.76, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is TENX a good diversifier for CISS?
Yes. With a correlation of -0.39, CISS and TENX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.39 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/ciss-vs-tenx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ciss-vs-tenx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CISS correlations · TENX correlations
