CISS · NASDAQ
C3is (CISS) Stock Price & Fundamentals
C3is (CISS) closed at $522.79 on Oct 9, 2026, up 0.48% from the previous close of $520.31.
Share price, past year
1Y +34.90%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $522.79 |
| Sep 30, 2026 | $530.21 |
| Aug 31, 2026 | $495.95 |
| Jul 31, 2026 | $477.18 |
| Jun 30, 2026 | $453.85 |
| May 29, 2026 | $450.08 |
| Apr 30, 2026 | $426.80 |
| Mar 31, 2026 | $440.33 |
| Feb 27, 2026 | $431.73 |
| Jan 30, 2026 | $415.72 |
| Dec 31, 2025 | $397.95 |
| Nov 28, 2025 | $390.75 |
| Oct 31, 2025 | $381.24 |
Key statistics
- Market cap
- $344.87M
- P/E (TTM)
- —
- EPS (TTM)
- —
- Revenue (TTM)
- —
- Net income (TTM)
- —
- Shares outstanding
- 659.7K
- Dividend yield
- —
- 52-week range
- $375.33 – $530.23
C3is's market cap is $344.87M, based on a share price of $522.79 and 659.7K shares outstanding as of Dec 31, 2025.
Financials
C3is reported revenue of $34.76M for fiscal 2025, down 17.83% from fiscal 2024.
C3is earned net income of $10.47M in fiscal 2025, a net margin of 30.1%.
Annual revenue
| Fiscal year | Revenue | Growth | Net income | Net margin | EPS (diluted) | Free cash flow |
|---|---|---|---|---|---|---|
| FY2025ended Dec 31, 2025 | $34.76M | −17.8% | $10.47M | 30.1% | $3.98 | $3.84M |
| FY2024ended Dec 31, 2024 | $42.30M | +47.2% | −$2.75M | −6.5% | −$351.58 | $23.35M |
| FY2023ended Dec 31, 2023 | $28.74M | — | $9.29M | 32.3% | $18,911.99 | $1.34M |
Company profile
- Name
- C3is Inc.
- Ticker
- CISS
- Exchange
- NASDAQ
- Industry (SEC SIC)
- Deep Sea Foreign Transportation of Freight
- Headquarters
- 331 Kifissias Avenue, Erithrea, Athens, J3 14561
- Incorporated in
- 1T
- Fiscal year ends
- December
- SEC CIK
- 0001951067
Frequently asked questions
What is C3is's stock price?
C3is (CISS) closed at $522.79 on Oct 9, 2026, up 0.48% from the previous close of $520.31.
What is C3is's market cap?
C3is's market cap is $344.87M, based on a share price of $522.79 and 659.7K shares outstanding as of Dec 31, 2025.
How much revenue does C3is make?
C3is reported revenue of $34.76M for fiscal 2025, down 17.83% from fiscal 2024.
Sources and methodology
Fundamentals come from C3is Inc.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures