BWMN vs CISS: Correlation
How closely do Bowman Consulting Group Ltd. (BWMN) and C3is Inc. (CISS) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BWMN and CISS?
On 3 years of weekly data the BWMN/CISS correlation comes out at 0.55, moderate. The past 12 months show a tighter link (0.79) than the 3-year average (0.55). The 5-year figure is n/a, and annualized covariance runs at 65375.3 %².
In BWMN's tracked universe of 17 assets, CISS sits right near the top at #1. Their recent paths diverged sharply: over the last 12 months BWMN outperformed by 101.0 percentage points (+1.5% for BWMN against -99.5% for CISS). One caveat on sizing: CISS is 37.0 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.
BWMN vs CISS: side by side
| BWMN (Bowman Consulting Group Ltd.) | CISS (C3is Inc.) | |
|---|---|---|
| 1-year return | +1.5% | -99.5% |
| 5-year return | +220.2% | n/a |
| Volatility (ann.) | 56.7% | 2098.5% |
| Beta vs S&P 500 | 1.08 | 2.24 |
| Max drawdown (3Y) | -56.2% | -100.0% |
| Market cap | $0.7B | – |
| P/E (trailing) | 101.2 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BWMN | CISS |
|---|---|---|
| 2022 | +2.8% | – |
| 2023 | +62.6% | – |
| 2024 | -29.8% | -98.9% |
| 2025 | +32.3% | -97.3% |
| 2026 | +28.8% | -93.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BWMN and CISS good diversifiers for each other?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BWMN and CISS?
Using weekly returns as of 2026-08-27: 0.55 over 3 years, with 0.79 over the last year and n/a over 5 years.
Is CISS a good diversifier for BWMN?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.55 mean?
A reading of 0.55 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/bwmn-vs-ciss.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bwmn-vs-ciss/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BWMN correlations · CISS correlations
