ACCS vs CISS: Correlation
ACCESS Newswire Inc. (ACCS) and C3is Inc. (CISS) show a negative relationship: their 3-year correlation of weekly returns is -0.28.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACCS and CISS?
Across a 3-year window, the weekly returns of ACCS and CISS correlate at -0.28, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.45) than the 3-year average (-0.28). Stretching to 5 years gives n/a, with an annualized covariance of -30350.4 %².
CISS is close to the least connected end of ACCS's tracked universe, ranking #10 of 10. Their recent paths diverged sharply: over the last 12 months ACCS outperformed by 49.4 percentage points (-50.1% for ACCS against -99.5% for CISS). Risk is not evenly split, since CISS carries 41.3 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.
ACCS vs CISS: side by side
| ACCS (ACCESS Newswire Inc.) | CISS (C3is Inc.) | |
|---|---|---|
| 1-year return | -50.1% | -99.5% |
| 5-year return | -78.8% | n/a |
| Volatility (ann.) | 50.8% | 2098.5% |
| Beta vs S&P 500 | 0.26 | 2.24 |
| Max drawdown (3Y) | -77.4% | -100.0% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACCS | CISS |
|---|---|---|
| 2022 | -15.0% | – |
| 2023 | -27.6% | – |
| 2024 | -50.7% | -98.9% |
| 2025 | +4.0% | -97.3% |
| 2026 | -41.7% | -93.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACCS and CISS good diversifiers for each other?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ACCS and CISS?
Using weekly returns as of 2026-08-27: -0.28 over 3 years, with -0.45 over the last year and n/a over 5 years.
Is CISS a good diversifier for ACCS?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.28 mean?
A reading of -0.28 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/accs-vs-ciss.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/accs-vs-ciss/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACCS correlations · CISS correlations
