Is Cosan S.A. (CSAN) a good stock to buy?
What we have tested leans negative. To like it anyway you need a reason our checks do not capture.
What each rating means, in numbers
How wild is the price? — Wild. The share price swings about 54% in a typical year, which puts it in the above average. Out of every 100 companies that swung like this, about 3.7 went bankrupt within the year. Across the three periods we tested that ran from 0.9% to 5.7%.
What "tested" means here, and why there is no score out of 100
Tested means the read was measured against what actually happened afterwards, on a history that keeps the companies that were later delisted, using only figures that had been filed on the day they are used. Survival was ranked on companies that really did fail. What an owner keeps was tested across the universe from 2011 to 2025.
The full record of everything we have tested is on the research pages.
Which benchmark. Over the period we tested, the median listed company returned +5.8% a year while the S&P 500 returned about +13.9% — the index is weighted by size and was carried by a handful of enormous winners. So "beats the index" and "beats the other companies you could have bought" are different questions. Where a read says it picks better companies, it means the second one. None of these gets you an index fund's return, and we would rather say that than imply otherwise.
The quality read is the strongest thing we have tested: 131,000 company-quarters across 5,300 companies, where the weakest scorers went on to fail at 5.4% against 1.4% for the strongest, holding in every era and all twelve sectors. It still says less likely to break, not likely to beat the market — every band in that study lost to the index at the median, because the median listed company does.
Each read is shown on its own rather than merged into a single score, so you can see which part is strong and which is weak instead of taking an average on trust.
▾ What goes into the smart-money reading
Contributions (weight × component score) sum to the total. This near-term score now includes fundamental health (leverage, FCF trend). See the Financial Health section for the full balance-sheet read.
Chance the S&P 500 falls 10% or more in the next three months.
Counted from every day since 2006. Says nothing about CSAN — see the board for how it is measured.
📍 Where to start on this page, and what to look at first
How to read CSAN (pre-profit growth)
This company is reinvesting instead of generating profit, so a standard DCF cannot price it. The useful question is whether the growth the market is paying for is achievable — and whether the company can fund itself until then.
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Reverse-DCF — the growth the price demands ↓
It shows exactly how fast the business must grow to justify today's price. Compare that to what comparable companies have actually achieved.
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Cash runway ↓
Can it reach profitability before it has to raise money and dilute shareholders?
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Interactive calculator ↓
Set your own growth + margin assumptions and see what the business would be worth if you are right.
It files little or nothing with the SEC — so our cash-flow models, financial statements, and U.S. insider data (Form 4) don't apply. What's still real: the live U.S. price and short positioning. Here's what we could pull from other sources:
📑 Read the real filings: latest SEC 6-K ↗
Identity, share count and tier from FINRA + OTC Markets; not a substitute for the home-market financial statements. Thin U.S. disclosure + OTC trading is itself a risk factor.
Who owns CSAN, and how it moves
From the SEC's own filings: every fund manager over $100M reports its holdings each quarter, and every officer and director reports theirs. Each point is what was public at the time.
How does CSAN stack up against its closest peers?
We take the 5 same-industry companies most similar to CSAN (similar size) and check what investors are paying for each dollar of their revenue (or profits). If CSAN is much more expensive on the same yardstick, that's a red flag — unless you have a specific reason it deserves a premium. For a leveraged business, EV/EBIT and FCF yield (both in the table) are usually more reliable than EV/Sales, because revenue multiples ignore differences in margins and debt.
▾ What's "EV / Sales" in plain English?
EV (Enterprise Value) = market cap + total debt − cash. It's "what you'd pay to buy the entire company outright" — you pay the market cap to shareholders and take over their debt, but you keep their cash. EV is fairer than market cap alone because it includes the debt the new owner inherits.
EV / Sales = EV ÷ annual revenue. So "2.5×" means investors pay $2.50 of enterprise value per $1 of yearly sales. Higher = market is paying more per dollar of sales (usually because they expect future growth or fat margins).
p25 / median / p75 are the 25th, 50th (middle), and 75th percentile of the peers' multiples. Half the peers fall between p25 and p75. The median (p50) is the typical peer — that's the benchmark we compare to.
| EV / SalesEV / Sales — For every $1 of yearly revenue, this is how many dollars investors pay to own the whole business (including debt). Why it matters: Works for pre-profit growth companies where P/E and FCF don't apply. The most apples-to-apples cross-company multiple because it ignores accounting choices. Reference: 1–3x for mature companies · 4–10x for software/SaaS · 10–20x for hypergrowth · >20x is rare and demanding Full explanation → |
0.5x / 0.5x / 1.0x |
| EV / Gross ProfitEV / Gross Profit — Enterprise value divided by gross profit — the multiple paid for what each dollar of sales contributes after direct costs. Why it matters: More refined than EV/Sales for high-margin businesses (software, marketplaces) where gross margin is the real economic engine. Reference: 8–15x for SaaS · 15–25x for hypergrowth software · >30x demanding Full explanation → |
2.9x / 3.1x / 5.1x |
| EV / EBITEV / EBITDA — Enterprise value divided by earnings before interest, tax, depreciation, and amortization. Why it matters: A classic "what would a private buyer pay" multiple — used in M&A. Strips out tax and capital-structure noise. Reference: 8–12x for mature businesses · 15–25x for growth · Below 5x often signals distress Full explanation → |
10.4x / 11.9x / 13.0x |
Bold middle number = median peer. Half the peers trade above it, half below. Computed over 5 same-industry peers; implausible multiples excluded.
⚠️ Important caveat: peer multiples only work if the peers are genuinely comparable. Always check the peer list below — if the auto-picker grabbed micro-caps or unrelated businesses, the comparison is noise. A medical-device giant priced against tiny biotech startups won't produce a useful signal.
▾ View peer list (8)
| Ticker | Company | Industry | Mcap | EV/Sales | EV/GP | EV/EBIT | FCF Yield |
|---|---|---|---|---|---|---|---|
| PAG | PENSKE AUTOMOTIVE GROUP, INC. | Auto Dealers | $13.8B | 0.5x | 3.1x | 12.4x | 4.5% |
| MUSA | Murphy USA Inc. | Auto Dealers | $9.3B | 0.5x | — | 13.0x | 3.5% |
| CVNA | CARVANA CO. | Auto Dealers | $16.4B | 1.0x | 5.1x | 11.3x | 4.8% |
| LAD | LITHIA MOTORS INC | Auto Dealers | $6.7B | 0.4x | 2.9x | 10.4x | 1.3% |
| CASY | CASEYS GENERAL STORES INC | Auto Dealers | $21.6B | 1.4x | — | — | 3.0% |
| W | Wayfair Inc. | E-Commerce ·fallback | $12.7B | 1.3x | 4.3x | 941.6x | 1.0% |
| TXRH | Texas Roadhouse, Inc. | Restaurants ·fallback | $10.8B | 1.8x | — | 22.8x | 2.7% |
| WMS | ADVANCED DRAINAGE SYSTEMS, INC. | Plastics Foam Products ·fallback | $10.7B | 4.0x | 10.5x | 19.8x | 4.9% |
Quality & solvency checks
Cheap stocks can be cheap for a reason. These screens warn when a low valuation comes paired with structural fragility.
Why it matters: Cheap-looking stocks (low P/E or P/B) often have low Z-scores because the market knows the company is dying. Z-score warns you before you fall into a value trap.
Reference: > 3.0 = safe zone · 1.81–3.0 = grey zone · < 1.81 = distress zone
Full explanation →
The Z-score needs working capital, retained earnings, EBIT, sales and total assets from the latest balance sheet, and at least one of those isn't reported in machine-readable form here — common for foreign private issuers. We leave it blank rather than compute a distress verdict from an estimated input. It doesn't affect the reported figures in the financial tables below.
Why it matters: High score = fundamentals improving. Low score = deteriorating. Especially powerful for filtering cheap stocks: cheap + high F-score historically outperforms; cheap + low F-score is often a value trap.
Reference: 7–9 = strong · 4–6 = mediocre · 0–3 = weak
Full explanation →
The F-score compares two consecutive years of income, cash-flow and balance-sheet data. We have 0 years of income data for this filer, but no machine-readable cash-flow statement or balance sheet — so several of the nine checks have no input at all. We show nothing rather than score a partial year against itself. The reported figures in the financial tables below are unaffected.
A standard discounted cash flowDCF — Discounted Cash Flow — sums up all future cash a business will produce, adjusted for the fact that future dollars are worth less than dollars today.
Why it matters: It is the most fundamentally honest valuation method when applicable — but only works for companies with predictable, positive cash flow.
Reference: Best for: mature, profitable businesses. Fails for: pre-profit growth, banks, REITs.
Full explanation → (DCF) valuation is not meaningful for Cosan S.A. because the model projects negative free cash flowFree Cash Flow (FCF) — Operating cash flow minus capital spending: cash left after a company covers operating costs, taxes and interest and reinvests in the business — but BEFORE repaying debt principal or paying dividends. The cash actually available to investors.
Why it matters: A company can show big profits on paper while burning through cash. FCF is what actually fills the bank account.
Reference: Healthy mature businesses convert 8–15% of revenue into FCF · Growth companies often negative
Full explanation →, indicating a cash-burning growth stage. Valuing this company would require a detailed understanding of its various business segments and their individual growth prospects and capital requirements. Investors are likely betting on the future growth and profitability of its diverse energy and infrastructure assets. The number one quantifiable risk is the company's current inability to generate positive free cash flow.
As of 4 months ago
Anatomy of a share
What you're buying per share. Bars are at the same scale so you can see the relative size of revenue, costs, cash flow, and debt — not just read them in a table.
What you actually need to decide
Every stock price is a disagreement. Here's the single thing that must go right for the bulls, the single thing that breaks the thesis, and the concrete signposts to watch so you can update your view as real results arrive.
Why it matters: A company can show big profits on paper while burning through cash. FCF is what actually fills the bank account.
Reference: Healthy mature businesses convert 8–15% of revenue into FCF · Growth companies often negative
Full explanation →, as indicated by the 'FCF negative' flag, implies ongoing cash burn and potential reliance on external financing, which could dilute shareholders or increase debt burden.
- Quarterly reports showing positive free cash flow generation
- Announcements of new, profitable infrastructure or energy projects
- Improvements in the profitability of its key operating segments
Management & Leadership
Cosan S.A. is led by CEO Luis Henrique Cals de Beauchamp, who has been in the role since 2007. Rubens Ometto Silveira Mello is the founder and chairman of the board, overseeing the strategic direction of the diversified Brazilian conglomerate.
What They Make
Cosan S.A. is a Brazilian conglomerate operating in various sectors including energy, logistics, infrastructure, and land management. It primarily sells fuels, lubricants, and natural gas, and provides logistics services to industrial and retail customers.
End Markets
Revenue Drivers
Why Is It Priced Like This?
Why Customers Pay
The income statement and balance sheet are also too incomplete here to substitute another lens honestly, so this page carries price, momentum and disclosure facts only.
The market is likely pricing Cosan S.A. based on its long-term growth potential across its diversified portfolio, rather than current cash flows, as indicated by the 'FCFFree Cash Flow (FCF) — Operating cash flow minus capital spending: cash left after a company covers operating costs, taxes and interest and reinvests in the business — but BEFORE repaying debt principal or paying dividends. The cash actually available to investors.
Why it matters: A company can show big profits on paper while burning through cash. FCF is what actually fills the bank account.
Reference: Healthy mature businesses convert 8–15% of revenue into FCF · Growth companies often negative
Full explanation → negative' health signal. The market may be assigning value to the potential for future expansion in renewable energy and infrastructure projects in Brazil, which is not in the model. Investors are focusing on the company's strategic positioning in critical Brazilian sectors and its ability to eventually generate substantial cash flows from these assets.
Business Model & Valuation
How They Make Money
The company funds itself primarily through re-investment in its various business segments and may rely on debt or equity raises given its negative free cash flowFree Cash Flow (FCF) — Operating cash flow minus capital spending: cash left after a company covers operating costs, taxes and interest and reinvests in the business — but BEFORE repaying debt principal or paying dividends. The cash actually available to investors.
Why it matters: A company can show big profits on paper while burning through cash. FCF is what actually fills the bank account.
Reference: Healthy mature businesses convert 8–15% of revenue into FCF · Growth companies often negative
Full explanation →.
Growth / Revenue DCF
No cash flow statement data available - using revenue/margin growth model as fallback.
Show advanced inputs
| Revenue Growth | 15.0% |
What this model does NOT do: this is a consolidated owner-earnings FCF model. Standalone segment assumptions: none. It does not project its revenue segments independently; their combined effect is embedded in the historical revenue and cash-flow trend the model extrapolates. The calculator above can only approximate a segment's impact through the single consolidated growth rate — it cannot model any one line separately. For a true segment-level view, build a separate model from the company's segment disclosures.
Maturity & Competitive Position
Moat Signals
Geography & Markets
Cosan S.A. is primarily focused on the Brazilian market, with significant operations across the country in energy, logistics, and infrastructure. Exact geographic segment splits are not available in current filings.
Geographic Risks
Market Signals
These are timing signals, not value signals — they describe the stock's recent price behavior, not what the business is worth. Use them for the "the thesis looks good, but is now the moment?" question. Each tile below explains what it's saying.
Why it matters: Short-term contrarian indicator. Extreme readings often precede mean reversion, though not always.
Reference: 30–70 normal · >70 overbought · <30 oversold
Full explanation → (14)28.1OversoldHeavily sold off recently — sometimes a bounce setup, sometimes a falling knife.
Why it matters: When the fast line crosses above the slow line, short-term momentum is turning up; below, turning down. A timing cue, not a value signal.
Reference: Line above signal = bullish momentum · below = bearish
Full explanation →BearishLine below signalThe fast trend is below the slow trend — short-term momentum is currently downward.
Technicals describe price, not the business. A great company can have a "bearish" tape (a buying chance) and a weak one a "bullish" tape (a trap). Pair these with the valuation and health sections above.
QUALITY
Data Quality & Risk Flags (3 notes — click to expand/collapse)
Guardrail Notes (3)
- FCF negative: revenue/margin growth model projects future cash flows from revenue trajectory.
- INVARIANT: weighted IV is non-positive. Model may not be appropriate.
- Model implies no positive equity value under these assumptions. Valuation is speculative/low-confidence.
FINANCIALS
Financial Statements (5-year tables — click to expand)
From Cosan S.A.'s SEC filings (EDGAR).
Similar companies worth a look
Same sector and industry, similar fundamentals shape. Verify everything yourself — this list is computed mechanically and does not reflect our judgment about whether any of these are a good investment.
The questions people ask about CSAN
Is Cosan S.A. (CSAN) a good stock to buy?
We do not publish a single fair value for Cosan S.A., because one number would not be reliable for this business (the page explains why). Judge it on what today's price assumes, its financial-health checks and what insiders are doing, all shown here from SEC filings. This is educational research from SEC filings, not investment advice.
Is Cosan S.A. (CSAN) overvalued?
A single fair-value number is not reliable for Cosan S.A., so we do not call it overvalued or undervalued. The page shows what growth today's price assumes and how the company's finances look instead. This is educational research from SEC filings, not investment advice.
Where do these numbers come from?
From Cosan S.A.'s own SEC filings (10-K and 10-Q), Form 4 insider filings and daily market prices. Every figure on the page links to how it was calculated, and the model's weak spots are listed next to its results.