São Martinho S.A (SMTO3) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of São Martinho S.A BRL 31.40, price BRL 18.33, upside +71.3%, quality 49 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
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Price vs Fair Value
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 24, 2026.
How to read this chart
60‑month range R$12.82 – R$44.60 · fair‑value band R$17.61 – R$58.85 · the R$18.33 price screens below the R$31.40 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Sep 24, 2026.
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São Martinho S.A., together with its subsidiaries, engages in the production and sale of sugar, ethanol, and other sugarcane byproducts in Brazil. The company operates through Sugar, Ethanol, Corm Ethanol, Electric Power, Real Estate Businesses, Yeast, and Other Products segment.
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São Martinho S.A., together with its subsidiaries, engages in the production and sale of sugar, ethanol, and other sugarcane byproducts in Brazil. The company operates through Sugar, Ethanol, Corm Ethanol, Electric Power, Real Estate Businesses, Yeast, and Other Products segment. It offers a range of raw sugar; hydrated ethanol, which is used in tanks of cars powered by ethanol; anhydrous ethanol that is used as a gasoline additive in gasoline-powered vehicles; and industrial ethanol, which is primarily used in the production of paints, cosmetics, and alcoholic beverages. The company also generates electricity from sugarcane bagasse; provides byproducts, including yeast used in animal feed; offers fusel oil used as a solvent and pure amyl ethanol; and SMartLiO, a substitute for soybean oil used in the production of biofuels, paint, and chemicals, as well as Dried Distillers Grains with Solubles, an animal nutrition for ruminants, pigs, horses, birds, fish, and pets. In addition, it is involved in the cultivation of sugarcane; development of real estate properties; import and export of goods, products, and raw materials; agricultural productions; and investment in other companies. The company was founded in 1914 and is based in São Paulo, Brazil. São Martinho S.A. is a subsidiary of LJN Participações S.A.
Stock analysis
São Martinho S.A (SMTO3) currently trades at R$18.33, while our model-based Fair Value estimate is R$31.40, implying the stock looks roughly 41.6% undervalued today.
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Valuation
Bull case: the Growth Earnings group reads highest at a median of R$51.53 per share, and 19 of the 25 models we run sit above the R$18.33 price.
Bear case: the Dividend Discount group reads lowest at R$5.10, and 6 of the 25 models stay below the price. Evidence for this calculation is high.
Scenario range: R$17.61 (bear) to R$58.85 (bull), the price of R$18.33 sits inside it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.
Quality & growth
The Quality Score stands at 49/100 (below-average quality), in the Basic Materials sector.
Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.
São Martinho S.A reported revenue of R$7.4B in FY2026 versus R$5.7B in FY2022, a compound +6.8%/yr. Reported net income was R$836M in FY2026, compounding −13.3%/yr from FY2022.
Key figures
Market cap R$6.1B (≈ $1.2B) · P/E ratio 7.2 · P/S ratio 0.82 · EPS (TTM) R$2.53 · Dividend yield 3.7% · Net margin 11.3% · Return on equity 11.9% · Return on assets (EBIT) 10.0%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 51 out of 100 (low confidence).
What moves the price
The share trades about 14% below its 52-week high and 43% above its 52-week low, currently above its 200-day average.
For context, the median of 10 Basic Materials peers we cover trades at −40% fair-value upside, at 71%, SMTO3 screens cheaper than that median.
Fair Value models
Bear R$17.61Fair Value R$31.40Bull R$58.85
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Based on fiscal year 2026 figures (about 6 months old). Earnings retained since then (R$0.9005 per share) are deliberately not added.Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target.Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card.62/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+3.8%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+3.9%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+11.5%
Start year 2021 (pandemic). Over 10 years: +12.3% a year
Revenue growth 22 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+17.8%
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What shareholders gained per year (last 5 years), in BRL ⓘWhat the business itself delivers per year: earnings growth per share plus the dividend yield. This is what you get IF the market keeps valuing the stock the same way: it contains no assumption about the market changing its mind. Computed per share, so buybacks count and a merger does not pass as growth. For a company that pays no dividend it is pure earnings growth per share. Period: earnings growth per share as CAGR over the last 5 reported fiscal years (annual statements), plus the current dividend yield. The start value is the median of the three years around the start, so a single crisis year (a pandemic or a write-down) does not distort the rate. Measured in BRL: this currency has depreciated against the euro and dollar over the long run, so part of the nominal rate is currency erosion that never reaches a EUR/USD investor.
+2.6%
Earnings growth per share plus dividend.
Earnings per share, growth per year−1.1%
Dividend (yield on the price)3.7%
Pace: 5 vs 10 years ⓘTwo data points, not a trend model: earnings growth per share over the last 5 fiscal years against the last 10. Labelled "steady" when both rates are within 3 percentage points of each other, otherwise picking up or flattening. Shown only when ten years of history exist.−1% vs 12%, slowing
Profit margin 2021 to 2026 ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.36% → 18%
Start year 2021 (pandemic)
Growth Forecast
A lot of optimism in the price
The price assumes more growth than the company has delivered so far and more than analysts expect.
What the price assumes ⓘThis turns our valuation around: instead of asking what the share is worth, it asks what growth the current price requires. It uses the cash the company keeps after all spending (free cash flow), the same discount rate as our models, five years of growth, then slowing evenly to 2 % a year by year ten. Compared with the analysts' sales forecasts extended to the same five years (at least three analysts, for context only, it does not enter the Fair Value): within 3 percentage points counts as "in line" (amber), below that little optimism (green), above that a lot of optimism (red).
+15.1%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect ⓘAnalysts publish sales forecasts for the next two fiscal years. For the years after that, growth slows evenly to 2 % a year by year ten (2 % is the long-run rate our models use). Projected years are marked as such.
+6.7%
Yearly sales growth analysts expect, extended to five years.
After inflation (Brazil: IMF forecast 3.3% a year to 2030, 5.4% from 2016 to 2025) that is about +11.4% a year for the price and +3.3% for the forecasts.
Price, fair value, quality and upside side by side.
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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Specialty Chemicals · 714 stocks
Beats the industry median on 13/15 measures
Overall it ranks above its industry peers.
Valuation
Quality Score49 · Below median
Fair Value upside+71% · Top 25%
Profitability
Return on equity (TTM)12% · Top 25%
Return on assets4% · Above median
Net margin (TTM)11% · Top 25%
Operating margin (TTM)18% · Top 25%
Growth and dividend
Revenue growth29% · Top 25%
Dividend yield (TTM)3.7% · Top 25%
Balance sheet
Debt / equity1.15× · Highest 25%
Valuation Multiplesvs Specialty Chemicals median · lower = cheaper
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Is São Martinho S.A (SMTO3) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of R$31.40 versus a price of R$18.33, about +71% upside (undervalued).
What is the fair value of SMTO3?
Our model-based fair value for São Martinho S.A is R$31.40 (as of Sep 24, 2026), built from audited fundamentals. The current price: R$18.33.
What is the quality score of SMTO3?
São Martinho S.A has a Quality Score of 49/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for São Martinho S.A (SMTO3)?
Our model-based price target is the fair value of R$31.40 (as of Sep 24, 2026) from 25 valuation models. Cautious scenario R$17.61, optimistic scenario R$58.85. It is a calculation from audited fundamentals, not an analyst target.
What is the São Martinho S.A stock forecast for 2026?
Our models put fair value at R$31.40, about +71% upside versus a price of R$18.33 (undervalued). Cautious scenario R$17.61, optimistic scenario R$58.85. The calculation is refreshed regularly with new filings.
What is the revenue of São Martinho S.A (SMTO3)?
São Martinho S.A reported trailing-twelve-month revenue of about R$7.4B (latest available figure, as of Sep 24, 2026).
Does São Martinho S.A pay a dividend?
São Martinho S.A currently shows a dividend yield of about 3.67% relative to its recent price (as of Sep 24, 2026).
What growth is priced into São Martinho S.A (SMTO3)?
For today's price to be fair in a discounted-cash-flow model, São Martinho S.A would have to grow free cash flow by +15.1 % per year for five years (discount rate 14.2 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +11.5 % per year. As of Sep 24, 2026.
What discount rate (WACC) does the fair value of SMTO3 use?
Our models discount São Martinho S.A at 14.2 %: a base by market capitalisation (small), country premium for Brazil. The same rate applies in all 26 models.
What is a reverse DCF?
A reverse DCF turns the usual calculation around. Instead of deriving a value from assumptions, it takes today's price as given and asks: what free-cash-flow growth would a company have to deliver for exactly this price to be fair? The result is not a forecast but the expectation already priced in. For São Martinho S.A that is +15.1 % per year a year over ten years, using the same discount rate (14.2 %) and the same formula as our fair value.
How much growth has São Martinho S.A (SMTO3) delivered so far?
Over the past 5 years revenue at São Martinho S.A grew +11.5 % a year. The price currently implies +15.1 % per year free-cash-flow growth a year. Comparing the two shows how much confidence is in the price: if it demands more than has been delivered, the business has to accelerate for the maths to work.
How fast is the sector of São Martinho S.A (SMTO3) growing?
The median revenue growth in the sector is +2.8 % a year. That is the yardstick for the growth priced into São Martinho S.A (+15.1 % per year a year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of São Martinho S.A (SMTO3)?
The free-cash-flow yield on the price is 11.65 %: that much free cash flow São Martinho S.A produces per unit of market value. When it exceeds the discount rate of our models (14.2 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of São Martinho S.A (SMTO3)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For São Martinho S.A it is R$31.40 per share (as of Sep 24, 2026), against a price of R$18.33. It is the blended result of 25 valuation models (cash flow, earnings, asset, dividend).
Is São Martinho S.A stock overvalued or undervalued in 2026?
As of Sep 24, 2026, SMTO3 trades below its calculated fair value: price R$18.33, fair value R$31.40, a gap of about +71% (undervalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of SMTO3?
No. The price is what the market pays today (R$18.33); the fair value is what the company's own numbers justify (R$31.40). For São Martinho S.A the two are R$13.07 per share apart. That gap is exactly why we show both numbers side by side.
How much is São Martinho S.A worth?
The market values São Martinho S.A at about R$6.1B (market capitalisation, as of Sep 24, 2026). Per share that is R$18.33; our models calculate a fair value of R$31.40 per share.
What do the bullish and bearish scenarios say about SMTO3?
Our models span a range for São Martinho S.A: cautious scenario R$17.61, base R$31.40, optimistic R$58.85 per share (as of Sep 24, 2026, price R$18.33). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of SMTO3?
São Martinho S.A trades at a price-to-earnings ratio of 7.2 (as of Sep 24, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of R$31.40 is built from several models across several years. Other multiples: PEG 0.9, P/B 0.2, P/S 0.2, EV/EBITDA 2.9.
What is the PEG ratio of SMTO3?
The PEG ratio of São Martinho S.A is 0.91 (P/E divided by earnings growth, as of Sep 24, 2026). That is below 1, so growth is priced more cheaply than the earnings multiple alone suggests.
How solid is the balance sheet of São Martinho S.A (SMTO3)?
Balance-sheet figures for São Martinho S.A (as of Sep 24, 2026): return on equity 11.9%, debt of 1.15 per unit of equity. They feed the Quality Score of 49/100, which measures business quality independently of the share price.
How far is SMTO3 from its 52-week high?
São Martinho S.A trades at R$18.33, about 14% below its 52-week high of R$21.21 and 43% above the low of R$12.82 (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of R$31.40 is for.
Which stocks are comparable to São Martinho S.A?
From the same area (Basic Materials) we also value Linde plc, The Sherwin-Williams Company, Ecolab Inc, Air Products and Chemicals, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is São Martinho S.A stock attractive at the current price?
The data as of Sep 24, 2026: price R$18.33, calculated fair value R$31.40 (+71%), Quality Score 49/100, from 25 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of SMTO3 calculated?
We run São Martinho S.A through 25 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of R$31.40, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.1 % above its aggregate fair value. São Martinho S.A currently trades 71 % below its own fair value, and the market average says nothing about that. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of São Martinho S.A (SMTO3)?
The closing price on Sep 23, 2026 was R$18.33. Our model-based fair value is R$31.40, about +71% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with São Martinho S.A right now?
The model range is unusually wide (R$17.61 to R$58.85). The outcome hinges heavily on assumptions, so read the point estimate with caution. Solid quality (49/100) at a price below fair value, the discount is the argument here, not the business quality.
Where does the earnings growth of São Martinho S.A (SMTO3) come from?
Earnings per share at São Martinho S.A grew +15.7 % a year from 2015 to 2026. Broken into its drivers: revenue per share +13.6 %, EBIT margin +0.7 %, tax rate +2.0 %, residual (interest, one-offs) −0.9 %. The four rates multiply to the earnings growth rate, they do not add up. Start and end are three-year averages so a single exceptional year does not distort the result.
Key figures of São Martinho S.A
How large is the market capitalisation of São Martinho S.A (SMTO3)?
The market capitalisation of São Martinho S.A is R$6.1B (≈ $1.2B). The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of São Martinho S.A (SMTO3)?
The price-to-sales ratio of São Martinho S.A is 0.82 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of São Martinho S.A (SMTO3)?
Earnings per share at São Martinho S.A are R$2.53 (price ÷ EPS = P/E 7.2). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of São Martinho S.A (SMTO3)?
The dividend yield of São Martinho S.A is 3.7% (payout 26.6%). Yearly dividend relative to the share price. 3% pays 3 per 100 invested. Below: how much of profit is used for it.
What is the net margin of São Martinho S.A (SMTO3)?
The net margin of São Martinho S.A is 11.3% (fiscal year 2026). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of São Martinho S.A (SMTO3)?
The return on equity (ROE) of São Martinho S.A is 11.9% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of São Martinho S.A (SMTO3)?
On an EBIT basis the return on assets of São Martinho S.A is 10.0% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of São Martinho S.A (SMTO3)?
The operating margin of São Martinho S.A is 17.6% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at São Martinho S.A (SMTO3)?
Revenue at São Martinho S.A is growing +29.1% versus a year earlier (3y avg +3.9%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at São Martinho S.A (SMTO3)?
Earnings per share at São Martinho S.A are growing +65.4% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does São Martinho S.A (SMTO3) carry?
The net debt of São Martinho S.A is R$9.8B (fiscal year 2026, ≈ 13.9 yrs of FCF). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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