STI Co. Ltd (039440) fair value: what the stock is really worth
As of Nov 6, 2026: fair value (intrinsic value) of STI Co. Ltd stock KRW 21,439, price KRW 18,760, upside +14.3%, quality 55 out of 100. Rating: undervalued. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.
69 individual criteria per stock, every one traceableSee the method →
Price vs Fair Value
White line = price, green steps = our fair value per fiscal year. As of Nov 8, 2026.
How to read this chart
60‑month range 10,428 KRW – 41,222 KRW · fair‑value band 14,040 KRW – 30,644 KRW · the 18,760 KRW price screens below the 21,439 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 8, 2026.
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STI Co., Ltd. operates in the semiconductor equipment industry in Korea.
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Its products include central chemical supply systems, slurry mixing and systems, and chemical mixing / dilution system for mixing or dilution, and supply of TMAH, KOH, HF, NH4OH, and SC-1. The company offers wet station products, including initial, pre-depo, pre photo, and ITO; cassette cleaners, developers, glass slimming systems, strippers, etchers, after glass grinding cleaners, and photo mask developers; and fine metal, screen mask, and back side glass cleaners.
In addition, it provides inkjet printing system; and reflow and wet blast systems. STI Co., Ltd. was founded in 1997 and is headquartered in Anseong-si, South Korea.
Stock analysis
STI Co. Ltd (039440) currently trades at 18,760 KRW, while our model-based Fair Value estimate is 21,439 KRW, implying the stock looks roughly 12% undervalued today.
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Valuation
Bull case: the Multiples group reads highest at a median of 28,264 KRW per share, and 8 of the 26 models we run sit above the 18,760 KRW price.
Bear case: the Earnings-Based group reads lowest at 9,404 KRW, and 18 of the 26 models stay below the price. Data coverage for this calculation is high.
Scenario range: 14,040 KRW (bear) to 30,644 KRW (bull), the price of 18,760 KRW 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 55/100 (solid quality), in the Technology sector.
Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
STI Co. Ltd reported revenue of 328B KRW in FY2025 versus 320B KRW in FY2021, a compound +0.7%/yr. Reported net income was 15.4B KRW in FY2025, compounding −9.7%/yr from FY2021.
Key figures
Market cap 284B KRW (≈ $210M) Micro · P/E ratio 20.1 · P/S ratio 0.94 · EPS (TTM) 1,262 KRW · Dividend yield 0.8% · Net margin 6.4% · Return on equity 7.0% · Return on assets (EBIT) 7.7% (5-year average).
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 36 out of 100 (low confidence).
What moves the price
The share trades about 54% below its 52-week high and 4% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −7% fair-value upside, at 14%, 039440 screens cheaper than that median.
Fair Value models
Bear14,040 KRWFair Value 21,439 KRWBull30,644 KRW
Price 18,760 KRW · Upside +14.3%
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above starts from their evidence-weighted blend, not from a single model. In cyclical trough or peak years, after dilution or a stock split it is adjusted afterwards, so it can sit above or below the models. Based on fiscal year 2025 figures (about 10 months old). Earnings retained since then (953.31 KRW 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. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds.Coverage ⓘCoverage = 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.
Best data coverage
FCF DCF7,878 KRW9,751 KRW12,075 KRW82
Growth DCF7,878 KRW9,488 KRW11,362 KRW80
Owner Earnings9,352 KRW11,794 KRW14,822 KRW78
All 26 models by family
DCF Models
FCF DCF7,878 KRW9,751 KRW12,075 KRW82
Owner Earnings9,352 KRW11,794 KRW14,822 KRW78
5Y Revenue Exit11,316 KRW16,930 KRW24,159 KRW72
5Y EBITDA Exit15,730 KRW25,193 KRW36,329 KRW75
5Y P/E Exit15,522 KRW24,805 KRW34,612 KRW70
10Y Revenue Exit9,410 KRW13,606 KRW19,313 KRW67
10Y EBITDA Exit12,043 KRW18,446 KRW27,146 KRW68
10Y P/E Exit11,931 KRW18,219 KRW26,041 KRW64
Earnings-Based
Graham-Dodd6,834 KRW21,579 KRW28,740 KRW64
Lynch FV4,734 KRW6,763 KRW8,792 KRW61
PEG = 1.04,734 KRW6,763 KRW8,792 KRW57
EPV11,097 KRW12,044 KRW12,808 KRW74
Dividend Discount
Gordon GGM1,310 KRW2,167 KRW2,786 KRW68
DDM Multi-Stage1,310 KRW1,969 KRW2,334 KRW67
Multiples
P/E Multiple21,104 KRW28,139 KRW35,174 KRW63
P/S Multiple12,813 KRW17,084 KRW21,356 KRW58
P/B Multiple22,460 KRW29,947 KRW37,434 KRW55
EV/EBIT22,823 KRW30,534 KRW38,246 KRW66
EV/EBITDA21,214 KRW28,389 KRW35,565 KRW67
EV/Revenue11,383 KRW16,396 KRW21,409 KRW53
Asset-Based
NCAV (Graham)7,534 KRW11,416 KRW14,270 KRW54
Growth DCF
Growth DCF7,878 KRW9,488 KRW11,362 KRW80
Rev-Margin DCF11,316 KRW16,860 KRW23,214 KRW73
Economic Profit
Residual Income12,772 KRW12,486 KRW12,937 KRW76
ROIC Compounder11,097 KRW12,044 KRW12,808 KRW72
Growth Earnings
Growth-Adj P/E17,064 KRW24,378 KRW31,691 KRW67
The fair value above starts from this blend and is adjusted for a cyclical trough year.
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.40/100
Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Revenue growth 1 year
−1.8%
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.
−8.1%
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.
+4.0%
Start year 2020 (pandemic). Over 10 years: +10.1% a year
Revenue growth 14 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.
+9.4%
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What shareholders gained per year (last 5 years), in KRW ⓘ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. Basis: EBIT basis. Measured in KRW: 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.
−3.9%
Earnings growth per share plus dividend.
Earnings per share, growth per year−4.7%
Dividend (yield on the price)0.8%
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.−7.5% vs −1.4%, slowing
Profit margin 2020 to 2025 ⓘ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.6% → 6%
Pace: the 5-year rate starts in 2020 (pandemic)
Growth Forecast
A lot of optimism in the price
The price assumes more growth than the company has delivered so far.
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).
+19.1%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect
n/a
No analyst forecast available.
Calculated on free cash flow for fiscal year 2025. Over the last twelve months it was negative, so the figure above is uncertain.
After inflation (South Korea: IMF forecast 2.1% a year to 2030, 2.1% from 2016 to 2025) that is about +16.7% a year for the price.
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.Semiconductor Equipment & Materials · 235 stocks
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Is STI Co. Ltd (039440) overvalued or undervalued?
As of Nov 8, 2026, our model estimates a fair value of 21,439 KRW versus a price of 18,760 KRW, about +14% upside (undervalued).
What is the fair value of 039440?
Our model-based fair value for STI Co. Ltd is 21,439 KRW (as of Nov 8, 2026), built from audited fundamentals. The current price: 18,760 KRW.
What is the quality score of 039440?
STI Co. Ltd has a Quality Score of 55/100. 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 STI Co. Ltd (039440)?
Our model-based price target is the fair value of 21,439 KRW (as of Nov 8, 2026) from 26 valuation models. Cautious scenario 14,040 KRW, optimistic scenario 30,644 KRW. It is a calculation from audited fundamentals, not an analyst target.
What is the STI Co. Ltd stock forecast for 2026?
Our models put fair value at 21,439 KRW, about +14% upside versus a price of 18,760 KRW (undervalued). Cautious scenario 14,040 KRW, optimistic scenario 30,644 KRW. The calculation is refreshed regularly with new filings.
What is the revenue of STI Co. Ltd (039440)?
STI Co. Ltd reported trailing-twelve-month revenue of about 303B KRW (latest available figure, as of Nov 8, 2026).
Does STI Co. Ltd pay a dividend?
STI Co. Ltd currently shows a dividend yield of 0.80% relative to its recent price (as of Nov 8, 2026).
How much is the dividend of STI Co. Ltd (039440) and when is the ex-dividend date?
STI Co. Ltd pays a dividend of 150.00 KRW per share a year, a dividend yield of 0.8%. The last ex-dividend date was Dec 29, 2025. A dividend has been paid every year since 2014. The payout ratio is 11.9% of earnings. Free cash flow covers the dividend 3.90 times. Our assessment: Well covered. A low payout and the dividend is fully funded by free cash flow, a comfortable, sustainable dividend.
What growth is priced into STI Co. Ltd (039440)?
For today's price to be fair in a discounted-cash-flow model, STI Co. Ltd would have to grow free cash flow by +19.1 % per year for five years (discount rate 12.8 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +4.0 % per year. Calculated on free cash flow for fiscal year 2025. Over the last twelve months it was negative, so the figure above is uncertain. As of Nov 8, 2026.
What discount rate (WACC) does the fair value of 039440 use?
Our models discount STI Co. Ltd at 12.8 %: a base by market capitalisation (small), damped by beta 1.40, country premium for South Korea. 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 STI Co. Ltd that is +19.1 % per year for five years, then slowing evenly to 2 % by year ten, using the same discount rate (12.8 %) and the same formula as our fair value.
How much growth has STI Co. Ltd (039440) delivered so far?
Over the past 5 years revenue at STI Co. Ltd grew +4.0 % a year. The price currently implies free-cash-flow growth of +19.1 % per 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 STI Co. Ltd (039440) growing?
The median revenue growth in the sector is +11.5 % a year. That is the yardstick for the growth priced into STI Co. Ltd (+19.1 % per year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of STI Co. Ltd (039440)?
The free-cash-flow yield on the price is 3.25 % in the last fiscal year (free cash flow was negative over the last twelve months): that much free cash flow STI Co. Ltd produces per unit of market value. When it exceeds the discount rate of our models (12.8 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of STI Co. Ltd (039440)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For STI Co. Ltd it is 21,439 KRW per share (as of Nov 8, 2026), against a price of 18,760 KRW. It is the blended result of 26 valuation models in 8 families (DCF Models, Earnings-Based, Dividend Discount, Multiples, Asset-Based, Growth DCF, Economic Profit, Growth Earnings).
Is STI Co. Ltd stock overvalued or undervalued in 2026?
As of Nov 8, 2026, 039440 trades below its calculated fair value: price 18,760 KRW, fair value 21,439 KRW, a gap of about +14% (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 039440?
No. The price is what the market pays today (18,760 KRW); the fair value is what the company's own numbers justify (21,439 KRW). For STI Co. Ltd the two are 2,679 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is STI Co. Ltd worth?
The market values STI Co. Ltd at about 284B KRW (market capitalisation, as of Nov 8, 2026). Per share that is 18,760 KRW; our models calculate a fair value of 21,439 KRW per share.
What do the bullish and bearish scenarios say about 039440?
Our models span a range for STI Co. Ltd: cautious scenario 14,040 KRW, base 21,439 KRW, optimistic 30,644 KRW per share (as of Nov 8, 2026, price 18,760 KRW). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 039440?
STI Co. Ltd trades at a price-to-earnings ratio of 20.1 (as of Nov 8, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of 21,439 KRW is built from several models across several years. Median P/E at fiscal year-end, 10 fiscal years (2016 to 2025), reported earnings: 13.5. Other multiples: P/B 1.0, P/S 0.9, EV/EBITDA 13.2.
How solid is the balance sheet of STI Co. Ltd (039440)?
Balance-sheet figures for STI Co. Ltd (as of Nov 8, 2026): return on equity 7.0%. They feed the Quality Score of 55/100, which measures business quality independently of the share price.
How far is 039440 from its 52-week high?
STI Co. Ltd trades at 18,760 KRW, about 54% below its 52-week high of 40,850 KRW and 4% above the low of 17,980 KRW (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 21,439 KRW is for.
Which stocks are comparable to STI Co. Ltd?
From the same area (Technology) we also value ASML Holding, Applied Materials, Inc, Lam Research Corporation, KLA Corporation, 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 STI Co. Ltd stock attractive at the current price?
The data as of Nov 8, 2026: price 18,760 KRW, calculated fair value 21,439 KRW (+14%), Quality Score 55/100, from 26 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 039440 calculated?
We run STI Co. Ltd through 26 models from 8 families: DCF Models, Earnings-Based, Dividend Discount, Multiples, Asset-Based, Growth DCF, Economic Profit, Growth Earnings. Every model gets the same audited fundamentals; the fair value of 21,439 KRW builds on their evidence-weighted average, 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 13.3% above its aggregate fair value. STI Co. Ltd currently trades 12% 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 STI Co. Ltd (039440)?
The closing price on Nov 6, 2026 was 18,760 KRW. Our model-based fair value is 21,439 KRW, about +14% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with STI Co. Ltd right now?
A fairly wide model range (14,040 KRW to 30,644 KRW) leaves room in how you read the outcome. The price sits in the lower half of our model range, the side with the larger margin of safety. The data supports the verdict: every model runs on fully documented inputs.
Key figures of STI Co. Ltd
How large is the market capitalisation of STI Co. Ltd (039440)?
The market capitalisation of STI Co. Ltd is 284B KRW (≈ $210M). 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 STI Co. Ltd (039440)?
The price-to-sales ratio of STI Co. Ltd is 0.94 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of STI Co. Ltd (039440)?
Earnings per share at STI Co. Ltd are 1,262 KRW (price ÷ EPS = P/E 20.1). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of STI Co. Ltd (039440)?
The dividend yield of STI Co. Ltd is 0.8% (payout 11.9%). 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 STI Co. Ltd (039440)?
The net margin of STI Co. Ltd is 6.4% (last twelve months). 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 STI Co. Ltd (039440)?
The return on equity (ROE) of STI Co. Ltd is 7.0% (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 STI Co. Ltd (039440)?
On an EBIT basis the return on assets of STI Co. Ltd is 7.7% (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 STI Co. Ltd (039440)?
The operating margin of STI Co. Ltd is 4.0% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at STI Co. Ltd (039440)?
Revenue at STI Co. Ltd is growing −16.9% versus a year earlier (3y avg −8.1%). 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 STI Co. Ltd (039440)?
Earnings per share at STI Co. Ltd are growing +69.9% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does STI Co. Ltd (039440) carry?
The net debt of STI Co. Ltd is 4.8B KRW (fiscal year 2021, ≈ 0.5 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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Broad data
Nov 8, 2026