BRNX vs CISS: Correlation
How closely do BrenX Ltd. (BRNX) and C3is Inc. (CISS) trade together? Their weekly returns over three years give a correlation of 0.95, which is very strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRNX and CISS?
Across a 3-year window, the weekly returns of BRNX and CISS correlate at 0.95, very strong, meaning they move nearly in lockstep. Little has changed lately, as the 1-year reading of 0.98 lands near the 3-year figure. Stretching to 5 years gives n/a, with an annualized covariance of 1080078.2 %².
CISS is one of the assets that tracks BRNX most closely: it ranks #1 out of the 26 assets we track against BRNX. Their 12-month results are close: -94.9% for BRNX against -99.5% for CISS. One caveat on sizing: CISS is 3.9 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.
BRNX vs CISS: side by side
| BRNX (BrenX Ltd.) | CISS (C3is Inc.) | |
|---|---|---|
| 1-year return | -94.9% | -99.5% |
| 5-year return | -99.9% | n/a |
| Volatility (ann.) | 539.2% | 2098.5% |
| Beta vs S&P 500 | 1.25 | 2.24 |
| Max drawdown (3Y) | -100.0% | -100.0% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BRNX | CISS |
|---|---|---|
| 2023 | -57.4% | – |
| 2024 | -77.8% | -98.9% |
| 2025 | -92.4% | -97.3% |
| 2026 | -77.6% | -93.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRNX and CISS good diversifiers for each other?
Not really. At 0.95, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between BRNX and CISS?
Using weekly returns as of 2026-08-27: 0.95 over 3 years, with 0.98 over the last year and n/a over 5 years.
Is CISS a good diversifier for BRNX?
Not really. At 0.95, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.95 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.
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Related comparisons
Hubs: BRNX correlations · CISS correlations
