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C3is Inc. (CISS)

NASDAQ / Industrials / Marine Shipping

Share price

0.56 USD Market dataClose of Oct 15, 2026

Market capitalisation

154.6K USD Market dataClose of Oct 15, 2026
Market data
Oct 15, 2026
Filed accounts
FY2025, filed Apr 22, 2026
Ratios computed
Oct 15, 2026
Filed years
3, FY2023 to FY2025
Four kinds of sourceSEC filingCompany statementMarket dataComputedWhat each means
SEC filingFiled with the SEC
Read from a statement the company filed with the SEC, with the form, fiscal year, filing date and accession beside it.
Company statementCompany statement
What the company says about itself in a filing: an 8-K item, the auditor, its own segment names.
Market dataMarket data
Prices, market value and what analysts publish, with the date they are as of.
ComputedComputed by ValueScreener
Worked out by us from the other three, with the inputs and the formula one press away. A score is a research output, not a rating or a recommendation.
Reading

1 of 10

Overview

What the business is, what it costs, and how it reads on four questions.

Market dataSEC filingComputed

Four questions, at a glance

Quality

Return on equity

11.0% Computed

From the FY2025 filing

Read quality

Valuation

Price to earnings

0.01x Computed

FY2025 accounts, priced at the latest close

Read valuation

Cash generation

Free cash flow yield

n/m Computed

FY2025 accounts, priced at the latest close

Why n/m

Not meaningful for this company, such as a P/E on negative earnings or a bank's EV/EBIT.

Read cash generation

Revenue and net income, by fiscal year

FY2021 Revenue: 6.3M USDFY2021 Net income: 3.6M USDFY2022 Revenue: 3.3M USDFY2022 Net income: 551.6K USDFY2023 Revenue: 28.7M USDFY2023 Net income: 9.3M USDFY2024 Revenue: 42.3M USDFY2024 Net income: -2.7M USDFY2025 Revenue: 34.8M USDFY2025 Net income: 10.5M USD
Revenue Net income5 fiscal years; a year whose statement names no SEC filing is market data, and the table in Filings says which.
Named tests met
1 of 30 Which tests
The business, and the score behind its five axes

The reading, in brief

Is it cheap

Price to earnings is 0.01x at the close of 2026-10-15 on FY2025 figures; the lines are 15.00x (Graham's defensive ceiling) and, by market convention, 10.00x, 25.00x and 40.00x, and this sits below the lowest.

Today, against the Marine Shipping industry (33 companies), 0.01x sits at the 0th percentile; the middle half of that group runs from 3.63x to 21.53x.

Is it good

Return on equity was 11.0% in FY2025, in the band labelled "Ordinary" (8.0% to 15.0%), on lines anchored on Damodaran's cost-of-capital data.

Today, against the Marine Shipping industry (46 companies), 11.0% sits at the 66th percentile; the middle half of that group runs from -0.9% to 12.9%.

Is it safe

Interest coverage was 162.49x in FY2025, in the band labelled "Comfortable" (6.00x and above), on lines anchored on Damodaran's interest-coverage table, suggesting an interest bill operating profit covers many times over.

Year by year against peers
Whether C3is Inc.'s return on equity stayed above the median of the Marine Shipping industry, year by year. (FY2024 to FY2025, 2 fiscal years of C3is Inc. with a comparable figure)
The direction
Which way C3is Inc.'s return on equity has moved, and how steadily. (FY2021 to FY2025, 5 filed years of C3is Inc.)
What could explain it
What in C3is Inc.'s filed statements could explain the movements. (7 readings drawn from the statement lines C3is Inc. filed)
What to check next
What to check next on C3is Inc., and where in its filings. (3 questions for C3is Inc.)
In one paragraph
One paragraph on C3is Inc.'s returns, cash, balance sheet and price. (8 of sixteen figures read for C3is Inc.)

These are CISS’s filed figures. The research desk says what they mean, against peers and its own years, with what to check next.

Research CISSPart of Serious. New accounts start with 30 days of Professional, free, no card.

2 of 10

What changed

The newest filing, what it moved, and when the next one is due.

SEC filingCompany statement

The newest accounts on file are the FY2025 annual report: 20-F, filed Apr 22, 2026, accession 0001193125-26-170448.

3 of 10

Quality

The returns the business earns on its capital, and the margins behind them.

SEC filingComputed

C3is Inc: returns on capital and margins, each with its source
FigureValue, source and document
Return on invested capital, after tax
Why n/a

The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Return on equity11.0% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Return on capital employed, pre-tax1.4% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Return on assets10.6% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Gross margin
Why n/a

Our archived statements for this filer carry no gross profit line, so there is nothing to compute a gross margin from and trace back to source. That may be because the filer presents no cost of revenue, or because we have not captured the concept. We do not guess which.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Operating margin3.9% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Net margin30.1% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
CISS 30.1%
CTRM 23.6%RUBI 11.2%UFG -0.7%PSHG 59.4%HTCO -10.0%
-10.0%59.4%
Net margin: CISS against the 5 companies named under Valuation context, each as filed for its own latest year. Placement only: no average is drawn.

4 of 10

Financial strength

What it owes against what it owns, and whether it can meet what falls due.

SEC filingComputedCompany statement

C3is Inc: leverage, liquidity and distress, each with its source
FigureValue, source and document
Debt to equity
Why n/a

The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Current ratio6.21 ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Quick ratio5.82 ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Interest coverage162.49x ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Altman Z-score0.70 ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Net debt
Why n/a

The FY2025 balance sheet carries no net debt we could read.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Total assets 98.5MTotal liabilities 3.4MShareholders' equity 95.1MOwnsOwes, and equity
Total assets Total liabilities Shareholders’ equity
The balance sheet, line by line

Financial health

What C3is Inc owned and owed at the end of fiscal 2025, from the balance sheet it filed (20-F, filed Apr 22, 2026, 0001193125-26-170448).

C3is Inc: balance sheet position
Total assets98.5M FiledFY2025 20-F, filed Apr 22, 2026
Total liabilities3.4M FiledFY2025 20-F, filed Apr 22, 2026
Shareholders' equity95.1M FiledFY2025 20-F, filed Apr 22, 2026
Cash616.6K FiledFY2025 20-F, filed Apr 22, 2026
Total debtn/a FiledFY2025 20-F, filed Apr 22, 2026
Net debtn/a
Current ratio6.21
Debt to equityn/a
  • Debt to equity: FY2025: The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.

Read from the filed balance sheet for each year, with the income statement of the same year supplying operating profit where a ratio needs it. Nothing here is a view on whether this company is sound.

5 of 10

Valuation context

What the market charges for it, against its own record and companies like it.

Market dataSEC filingComputed

C3is Inc: what the market charges, each with its source
FigureValue, source and document
Price to earnings0.01x ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
P/E on trailing twelve months
Why n/a

A trailing figure needs 4 filed quarters with the dates they were filed on, and we hold 0 for this company. Nothing is drawn rather than a line built from fewer.

n/a ComputedClose of Oct 15, 2026 · Trailing four quarters, each as known on the day; the quarterly filings are listed under Filings
Price to book
Why n/a

A stored zero the filing does not prove, withheld rather than published as if it were a measurement.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Price to sales
Why n/a

A stored zero the filing does not prove, withheld rather than published as if it were a measurement.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Enterprise value to EBIT
Why n/a

We do not hold this figure for this company, so there is nothing to show.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Enterprise value to EBITDA
Why n/a

We do not hold this figure for this company, so there is nothing to show.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Price to earnings over growth
Why n/a

We do not hold this figure for this company, so there is nothing to show.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Diluted earnings per share
Why n/a

The FY2025 filing carries no diluted earnings per share we could read.

n/a FiledFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Graham number
Why n/a

We do not hold this figure for this company, so there is nothing to show.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448

We publish no fair value or price target of our own. Value CISS on your own assumptions in the DCF workbench, starting from the filed figures.

Its own record, and companies like it

Valuation

What the market charges for C3is Inc today, and the multiples it has carried. No value of ours: the figures are the filings’ and the market’s.

C3is Inc: valuation
Share price0.56 USD
Market capitalisation154.6K USD
Enterprise value to EBITDAn/a
Graham numbern/a
Diluted earnings per share, FY2022n/a

Diluted earnings per share, FY2022: Filed before the 1-for-100 split on 12 Apr 2024, the 2-for-5 split on 2 Jan 2025, the 1-for-6 split on 4 Apr 2025, the 1-for-20 split on 26 Jan 2026, the 1-for-7 split on 27 Apr 2026 and the 1-for-40 split on 19 Aug 2026, and the filing it was read from cannot be placed against them, so it is not put on today's share count and is not shown beside figures that are.

Price to earnings on trailing twelve months: A trailing figure needs 4 filed quarters with the dates they were filed on, and we hold 0 for this company. Nothing is drawn rather than a line built from fewer.

Companies like C3is Inc

  1. Castor Maritime Inc. (CTRM)Market cap 16.0M USD
  2. Rubico Inc. (RUBI)Market cap 1.0M USD
  3. Uni-Fuels Holdings Limited (UFG)Market cap 3.7M USD
  4. Performance Shipping Inc. (PSHG)Market cap 20.0M USD
  5. High-Trend International Group (HTCO)Market cap 9.8M USD

Same industry (Marine Shipping) and size band (Nano, under 50M), nearest in market value, net margin and current ratio. Each of those counts equally, by how many of the companies considered sit between the two on it. Closest first: the order is likeness and nothing else.

6 of 10

Cash generation

Whether profit arrives as cash, and what is paid back to shareholders.

SEC filingComputed

C3is Inc: cash generation and what is paid out, each with its source
FigureValue, source and document
Free cash flow yield
Why n/m

Not meaningful for this company, such as a P/E on negative earnings or a bank's EV/EBIT.

n/m ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Free cash flow3.8M USD ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Free cash flow margin11.1% ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Dividend yield
Why n/a

The dividends on file cannot be split between common and preferred holders, so the common dividend cannot be stated.

n/a ComputedClose of Oct 15, 2026 · FY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Payout ratio
Why n/a

We do not hold this figure for this company, so there is nothing to show.

n/a ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
FY2021 Free cash flow: -11.6M USDFY2021 Net income: 3.6M USDFY2022 Free cash flow: -38.3M USDFY2022 Net income: 551.6K USDFY2023 Free cash flow: 1.3M USDFY2023 Net income: 9.3M USDFY2024 Free cash flow: 23.4M USDFY2024 Net income: -2.7M USDFY2025 Free cash flow: 3.8M USDFY2025 Net income: 10.5M USD
Free cash flow Net incomeProfit that arrives as cash stands level with net income; a gap year after year is worth reading about.

7 of 10

Filings

Every figure, the year it is for and the document it was read from.

SEC filingMarket data

The filed figures

Computed from the accounts this company filed with the SEC and, in a ratio with a price in it, the last close, dated on this page. Every filed figure below carries the fiscal year and the filing date its accounts were read from, and every blank carries the reason it is blank. Nothing here is a view on this company.

C3is Inc.: the eight ratios, with the fiscal year and filing date behind each.
FigureValueYearAs of
0.01xFY2025Oct 15, 2026
n/aFY2025Oct 15, 2026
n/a A stored zero the filing does not prove, withheld rather than published as if it were a measurement.
n/aFY2025Oct 15, 2026
n/a Enterprise value is the market value plus total debt less cash, and the filed balance sheet reports no debt total or no cash.
n/mFY2025Oct 15, 2026
n/m Not meaningful for this company, such as a P/E on negative earnings or a bank's EV/EBIT.
n/aFY2025Apr 22, 2026
n/a The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.
n/aFY2025Oct 15, 2026
n/a The dividends on file cannot be split between common and preferred holders, so the common dividend cannot be stated.
n/aFY2025Apr 22, 2026
n/a The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.
6.21FY2025Apr 22, 2026
n/aFY2025Oct 15, 2026
n/a A stored zero the filing does not prove, withheld rather than published as if it were a measurement.
n/aFY2025Oct 15, 2026
n/a The filed income statement reports no earnings per share.
0.70FY2025Oct 15, 2026
-1.56FY2025Apr 22, 2026
4/9FY2025Apr 22, 2026

The figures are computed from the accounts for fiscal 2025, the newest full year on file. 3 filed fiscal years on record, FY2023 to FY2025, from SEC EDGAR. Prices as of Oct 15, 2026. Ratios recomputed Oct 15, 2026. Two facts, because a recompute is not a fresh quote.

The year and the filing date name the statement each figure’s accounts are read from, and they stand even where the figure itself could not be computed: the line beneath a blank says what that statement did not carry. A figure’s name opens its formula and the filings behind it; a statement that names no SEC filing has no filing date, and reads n/a.

Ten years of filed figures, year by year

Ten years of filed figures

5 fiscal years, FY2021 to FY2025. 3 read from the annual reports C3is Inc filed with the SEC, each naming its filing; the rest from statements that name none, which are market data. Amounts in USD, as reported.

C3is Inc: revenue, earnings, free cash flow and returns, by fiscal year, with the filing each year was read from
YearRevenueOperating incomeNet incomeEPS, dilutedFree cash flowOperating marginReturn on equityFiling
FY202534.8M1.4M10.5Mn/a3.8M3.9%11.0%20-F, Apr 22, 20260001193125-26-170448
FY202442.3M10.1M-2.7Mn/a23.4M23.8%-3.9%20-F, Apr 28, 20250001193125-25-100539
FY202328.7M10.4M9.3Mn/a1.3M36.3%16.7%20-F, Apr 30, 20240001193125-24-123906
FY20223.3M552.1K551.6Kn/a-38.3M16.8%1.4%Market data, supplied Oct 15, 2026accession n/a
FY20216.3M3.7M3.6Mn/a-11.6M58.3%41.2%Market data, supplied Oct 15, 2026accession n/a
  • Revenue, compound annual growth FY2021 to FY2025: 53.4%
  • Earnings, compound annual growth FY2021 to FY2025: 30.5%
  • Earnings per share: Fewer than two filed years carry earnings per share.
  • Free cash flow: Free cash flow was not positive in both 2021 and 2025, so a compound rate across the window is not defined. Both figures are in the table.

Every figure in this section is a line of a filed annual statement or a ratio of two of them. Nothing here is estimated or smoothed. Earnings per share filed before a share split are put on today's share count, and say so. Nothing here is a verdict on the company.

8 of 10

Risks and guardrails

The accounting screens, the published tests, and the lines you can set to be told.

ComputedCompany statement

C3is Inc: accounting screens and published tests, each with its source
FigureValue, source and document
Beneish M-score-1.56 ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Piotroski F-score4/9 ComputedFY2025 20-F, filed Apr 22, 2026, 0001193125-26-170448
Named tests met1 of 30 Computed
Beta1.27 ComputedClose of Oct 15, 2026

The named tests

Of 30 tests value investors published: 1 met, 16 not met, 13 we could not complete. Counts, never a score: a single figure would have to decide that meeting one investor’s criteria and meeting another’s are worth the same.

Which tests, by name(all 30)
Meets
Cheapest quarter on P/E (David Dreman)
Does not
Deep value; Large cap, low P/E; High F-score, low P/B (Joseph Piotroski); Three forensic scores; High returns and growth; Gross margin, turnover (Robert Novy-Marx); EV/EBITDA and coverage; Low beta, profitable; Near the 52-week low; Z-score and coverage (Edward Altman); High returns, low debt; Owner earnings yield; High return on tangibles; Low P/S, rising earnings (James O'Shaughnessy); Tangible book or below; Clean books, high ROIC
Not measured
Defensive investor (Benjamin Graham); Earnings yield and ROIC (Joel Greenblatt); Low PEG, low debt (Peter Lynch); High yield, low payout; Dividends and buybacks; ROIC at or above WACC; Two thirds of NCAV (Benjamin Graham); P/E times P/B (Benjamin Graham); Book or below, low debt (Walter Schloss); Cash-covered dividend; Cash-flow yield and ROIC; Cheapest quarter on P/B (David Dreman); Low P/E, growth, yield (John Neff). A test with a figure we could not read is incomplete, never met and never failed.
Figures we could not read(19)
  • Debt to Equity: The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.
  • Positive Earnings Streak: The latest filed year has no per-share earnings we can read; the test needs 10.
  • P/B Ratio: The stored figure is a zero that can stand for data we do not hold, so this test is not measured.
  • EV/EBIT: We do not hold this figure for this company, so there is nothing to show.
  • Return on Invested Capital: The filed borrowings do not add up to a total we can stand behind: the filer's own liability subtotals leave room for debt we did not read.
  • PEG Ratio: We do not hold this figure for this company, so there is nothing to show.
  • Eps Growth 5Y: We do not hold this figure for this company, so there is nothing to show.
  • Rev Growth 5Y: We do not hold this figure for this company, so there is nothing to show.
  • Gross Margin: Our archived statements for this filer carry no gross profit line, so there is nothing to compute a gross margin from and trace back to source. That may be because the filer presents no cost of revenue, or because we have not captured the concept. We do not guess which.
  • EV/EBITDA: We do not hold this figure for this company, so there is nothing to show.
  • Dividend Yield: The dividends on file cannot be split between common and preferred holders, so the common dividend cannot be stated.
  • Payout Ratio: We do not hold this figure for this company, so there is nothing to show.
  • Share Count Change Yoy: We do not hold this figure for this company, so there is nothing to show.
  • ROIC-WACC Spread: We do not hold this figure for this company, so there is nothing to show.
  • Price To Ncav: We do not hold this figure for this company, so there is nothing to show.
  • Price To Graham: We do not hold this figure for this company, so there is nothing to show.
  • P/S Ratio: The stored figure is a zero that can stand for data we do not hold, so this test is not measured.
  • Dividend Coverage Ratio: We do not hold this figure for this company, so there is nothing to show.
  • Dividend Streak: The dividends on file cannot be split between common and preferred holders, so the common dividend cannot be stated.

9 of 10

Declared positions

Whether anybody here owns this company.

Positions declared by the founder: no holding in any company shown here, as of October 3, 2026.

10 of 10

Next step

What to do with what you have read.

A thesis is your reason for owning it, in your words, with the figures that must stay true. Checking those figures every night against the newest filed accounts, and telling you once when one breaks, is what the subscription adds.

More on this company

What this cannot tell you

  • 19 figures could not be read on this company, among them Debt to Equity, Positive Earnings Streak, P/B Ratio. Each blank in the table above names the rest, with its reason. 13 named tests come back incomplete because of them, which is neither met nor missed.
  • We hold 3 filed fiscal years rather than 10, so the run above is shorter than a full decade and is counted as what it is.

And the one that is true of all of it: This is what the numbers say today. It cannot tell you the day one of them stops being true. Nothing here can, because the reasons are not written down.

Running this once is arithmetic on public documents and you are welcome to it. Writing down why you own each company, in your own words and with the numbers that have to stay true for it to hold, and then having those numbers re-checked every night against the newest filed accounts, and against the latest close where a rule watches a price, is Professional, the plan a new account starts on for 30 days, one trial per person. It writes to you the day one breaks, and stays quiet when nothing does. The check runs every night at 23:30 UTC. A filing is picked up the night after it is published.

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ValueScreener · valuescreener.ai · Computed from accounts filed with the SEC by this company, read from EDGAR, and from dated closing prices. On this page a filed figure opens into its formula, its inputs and the statement, fiscal year and filing date it was read from, and a price into the day of its close. A figure that cannot show that trail says so.

A computation on accounts filed with the SEC, not a recommendation and not advice. Past filings do not indicate future results. Risk disclaimer.

Once a week, what changed in the filings of US-listed companies, why it can matter to a thesis, and what deserves a closer review. Grounded in filings, not market noise.

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Risk disclaimer. This service is provided for research and education only. Nothing on it is investment advice, a recommendation, or an offer to buy or sell any security. Capital is at risk, and past performance does not indicate future results. Figures come from filed accounts and may be incomplete, delayed or later restated, so verify a number against the filing before you act on it.