WallStSmart
CSAN

Cosan SA ADR

NYSE: CSAN · ENERGY · OIL & GAS REFINING & MARKETING

$2.75
-1.79% today

Updated 2026-09-18

Market cap
$2.71B
P/E ratio
—
P/S ratio
0.07x
EPS (TTM)
$-2.26
Dividend yield
—
52W range
$2 – $6
Volume
2.1M

Cosan SA ADR (CSAN) Stock Valuation Analysis

Fair value estimate, historical valuation range, and quality signals for CSAN.

WallStSmart Verdict
Overvalued

Current price exceeds what fundamentals support. Risk/reward skewed unfavorably.

Smart Value Score: 34 / 100
P/E (TTM)
—
Not meaningful for this profile
PEG
—
—
Margin of Safety
+59.07%
Fair value $12.29 vs $2.75
EV / EBITDA
0.0x

CSAN historical valuation range

Where current P/E sits in CSAN's own 5Y range.

NOW
6.0x
5Y Low
7.0x
25th
8.9x
Median
18.8x
75th
71.4x
5Y High
CSAN is trading cheaper than 100% of the last 5Y.
0th percentile · Historically cheap

CSAN intrinsic value (DCF)

DCF-based fair value estimate vs current market price.

Current price
$2.75
Market value
Intrinsic value
$12.29
DCF estimate
Margin of safety
+59.07%
+346.9% upside to fair value

Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.

CSAN valuation signals

Quick-read green flags, caution flags, and risks based on current metrics.

✓
Strong margin of safety
Current price 59.1% below DCF intrinsic value estimate. Meaningful downside cushion.

P/E Ratio — History

P/S Ratio — History

Current: 0.07x

Is CSAN overvalued in 2026?

Cosan SA ADR (CSAN) currently trades at $2.75 per share with a market capitalization of $2,712,093,000.00. Based on our multi-factor framework, the stock appears richly valued with a Smart Value Score of 34/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.

CSAN currently has no meaningful P/E ratio, which typically signals that the company is unprofitable, near breakeven, or emerging from a loss-making period. With a P/S ratio of 0.1x, the market is valuing the company primarily on its revenue rather than its earnings.

Looking at its own history, CSAN is currently trading cheaper than 100% of the last 5Y on P/E. This places it in the 0th percentile of its historical range, a level that has historically coincided with attractive entry points.

Our discounted cash flow model estimates CSAN's intrinsic value at $12.29 per share, against the current market price of $2.75. This implies a margin of safety of +59.07%. A meaningful cushion exists against model error, making this a reasonable risk-adjusted entry.

The Piotroski F-Score of 5/9 puts financial quality in a middling range, neither a standout strength nor an obvious red flag.

Bottom line: CSAN appears richly valued on our framework, with a Smart Value Score of 34/100. At current levels the risk/reward is skewed against the buyer. A materially lower price or significant operational improvement would be needed to change the picture.

Frequently asked questions

Is CSAN overvalued?

CSAN scores 34/100 on our Smart Value Score (Grade F), a weak overall profile. The DCF also shows a positive margin of safety, so price and fundamentals line up reasonably well.

What is CSAN's fair value?

Our DCF model estimates CSAN's intrinsic value at $12.29 per share, versus the current price of $2.75, a margin of safety of +59.07%. Fair value is the present value of the cash flows we project the business to produce, so a price below it means the market is pricing the stock below that conservative estimate.

What P/E ratio does CSAN trade at?

CSAN does not have a meaningful P/E right now, usually a sign of unprofitability or an earnings transition. For unprofitable growth names, price-to-sales is the more useful gauge.

Is CSAN a buy based on valuation?

Our Smart Value rating for CSAN is Strong Sell, from a Smart Value Score of 34/100 that blends growth, quality, and valuation. The profile skews cautious, and a better price or clearer operating improvement would strengthen the case. This is research to inform your decision, not personalized financial advice.

How does CSAN's valuation compare to its history?

On P/E, CSAN sits in the 0th percentile of its own 5Y range, historically cheap relative to where it has traded. A low percentile means today's multiple is near the bottom of its historical band.

What is CSAN's Smart Value Score?

CSAN's Smart Value Score is 34/100. It is a proprietary WallStSmart metric blending growth quality, financial health, and valuation into a single 0-100 read, and scores above 75 are rare, signaling strong multi-factor alignment.