C3is (CISS) vs Castor Maritime (CTRM)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Castor Maritime is the larger company by market cap ($18.6 million vs $2.8 million), about 6.5 times the size. On valuation, C3is trades at a lower trailing P/E (0.0x vs 1.1x for Castor Maritime).
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | CISS | CTRM |
|---|---|---|
| Share price | $0.8231 | $1.92 |
| Market cap | $2.84M | $18.55M |
| 1-day change | +3.27% | -0.52% |
| YTD return | — | -7.25% |
| 1-year return | — | -9.00% |
| 5-year return | — | -91.93% |
| P/E ratio (TTM) | 0.00 | 1.07 |
| EPS (TTM) | $2,284.99 | $1.79 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $14,504.00 | $2.66 |
| 52-week low | $0.78 | $1.66 |
| Distance from 52-week high | -99.99% | -27.82% |
| Average volume | 1.34M | 45.29K |
| Shares outstanding | 3.44M | 9.66M |
| Employees | — | 123 |
| Sector | Industrials | Industrials |
| Industry | Marine Shipping | Marine Shipping |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- Castor Maritime is about 6.5 times larger than C3is by market value ($18.55M vs $2.84M).
- Castor Maritime trades at a higher earnings multiple (1.1x vs 0.0x trailing P/E).
About C3is
CISS stock →C3is Inc. offers seaborne transportation services.
Industrials · Marine Shipping
About Castor Maritime
CTRM stock →Castor Maritime Inc. operates as a shipping and energy company worldwide.
Industrials · Marine Shipping · 123 employees
CISS vs CTRM FAQ
Which is bigger, C3is or Castor Maritime?
Castor Maritime (CTRM) is larger, with a market capitalization of $18.55M compared with $2.84M for C3is (CISS).
Which has the lower P/E ratio, CISS or CTRM?
CISS has the lower trailing P/E at 0.0, versus 1.1 for CTRM. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are C3is and Castor Maritime in the same industry?
Yes. Both are classified in the Marine Shipping industry within the Industrials sector.