IS Dongseo (010780) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of IS Dongseo KRW 12,257, price KRW 14,960, upside -18.1%, quality 53 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 14,540 KRW – 56,628 KRW · the 14,960 KRW price screens above the 12,257 KRW 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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IS DongSeo Co., Ltd. engages in the construction and construction materials businesses in South Korea.
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IS DongSeo Co., Ltd. engages in the construction and construction materials businesses in South Korea. The company is involved in construction business, that includes housing, business, civil, and urban development; environment, that includes waste recycling, lithium-ion battery recycling, auto resource recycling, EPC-O&M environmental facilities, and new renewable energy business; and concrete business, that includes PICE and PC products. It also produces denim apparels and fabrics; environment services, such as construction waste treatment, waste landfill, dismantling, and recycling of scrap vehicles; and waste battery recycling, as well as recreational leisure business, as well as operates in shipping industry. In addition, the company constructs roads, bridges, tunnels, railroads, and ports. The company was founded in 1975 and is headquartered in Seoul, South Korea.
Stock analysis
IS Dongseo (010780) currently trades at 14,960 KRW, while our model-based Fair Value estimate is 12,257 KRW, implying the stock looks roughly 22.1% overvalued today.
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Valuation
Bull case: the DCF Models group reads highest at a median of 58,537 KRW per share, and 11 of the 13 models we run sit above the 14,960 KRW price.
Bear case: the Earnings-Based group reads lowest at 10,994 KRW, and 2 of the 13 models stay below the price. Evidence for this calculation is medium.
Quality & growth
The Quality Score stands at 53/100 (solid quality), in the Industrials sector.
Weak Growth: Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
IS Dongseo reported revenue of 1.2T KRW in FY2025 versus 1.6T KRW in FY2021, a compound −6.4%/yr. Reported net income was −53.8B KRW in FY2025.
Key figures
Market cap 546B KRW (≈ $382M) · P/S ratio 0.40 · Dividend yield 3.3% · Net margin −4.4% · Return on equity 5.3% · Return on assets (EBIT) 6.6% · Operating margin 27.5% · Revenue (TTM) 1.4T KRW.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 28 out of 100 (low confidence).
What moves the price
The share trades about 55% below its 52-week high and 3% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Industrials peers we cover trades at −31% fair-value upside, at −18%, 010780 screens cheaper than that median.
Fair Value models
Bear 12,257 KRWFair Value 12,257 KRWBull 12,257 KRW
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.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.30/100
Growth has flattened: the last year, three and five years all grew more slowly than the long-term average.
Revenue growth 1 year
−18.5%
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.
−18.5%
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.
+0.6%
Start year 2020 (pandemic). Over 10 years: +2.7% a year
Revenue growth 25 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.
+8.5%
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Profit margin (trend) ⓘ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.
17.4% (2020) → 5.5% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed
Growth Forecast
Little optimism in the price
The price assumes more growth than the company has delivered so far and less 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).
+9.7%
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.
+14.4%
Yearly sales growth analysts expect, extended to five years.
After inflation (South Korea: IMF forecast 2.1% a year to 2030, 2.1% from 2016 to 2025) that is about +7.5% a year for the price and +12.1% 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.Engineering & Construction · 839 stocks
Beats the industry median on 7/10 measures
Overall it ranks above its industry peers.
Valuation
Quality Score53 · Above median
Fair Value upside−18% · Below median
Profitability
Return on equity (TTM)5% · Below median
Return on assets3% · Above median
Net margin (TTM)7% · Top 25%
Operating margin (TTM)27% · Top 25%
Growth and dividend
Revenue growth46% · Top 25%
Dividend yield (TTM)3.3% · Above median
Balance sheet
Debt / equity0.23× · Above median
Valuation Multiplesvs Engineering & Construction median · lower = cheaper
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Cite: Fair Value Calculator (2026). "IS Dongseo Fair Value". https://www.fairvalue-calculator.com/stock/010780
Frequently asked questions
Is IS Dongseo (010780) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of 12,257 KRW versus a price of 14,960 KRW, about −18% upside (overvalued).
What is the fair value of 010780?
Our model-based fair value for IS Dongseo is 12,257 KRW (as of Sep 24, 2026), built from audited fundamentals. The current price: 14,960 KRW.
What is the quality score of 010780?
IS Dongseo has a Quality Score of 53/100. 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 IS Dongseo (010780)?
Our model-based price target is the fair value of 12,257 KRW (as of Sep 24, 2026) from 13 valuation models. It is a calculation from audited fundamentals, not an analyst target.
What is the IS Dongseo stock forecast for 2026?
Our models put fair value at 12,257 KRW, about −18% upside versus a price of 14,960 KRW (overvalued). The calculation is refreshed regularly with new filings.
What is the revenue of IS Dongseo (010780)?
IS Dongseo reported trailing-twelve-month revenue of about 1.4T KRW (latest available figure, as of Sep 24, 2026).
Does IS Dongseo pay a dividend?
IS Dongseo currently shows a dividend yield of about 3.34% relative to its recent price (as of Sep 24, 2026).
What growth is priced into IS Dongseo (010780)?
For today's price to be fair in a discounted-cash-flow model, IS Dongseo would have to grow free cash flow by +9.7 % per year for five years (discount rate 11.4 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +0.6 % per year. As of Sep 24, 2026.
What discount rate (WACC) does the fair value of 010780 use?
Our models discount IS Dongseo at 11.4 %: a base by market capitalisation (small), damped by beta 0.93, 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 IS Dongseo that is +9.7 % per year a year over ten years, using the same discount rate (11.4 %) and the same formula as our fair value.
How much growth has IS Dongseo (010780) delivered so far?
Over the past 5 years revenue at IS Dongseo grew +0.6 % a year. The price currently implies +9.7 % 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 IS Dongseo (010780) growing?
The median revenue growth in the sector is +4.6 % a year. That is the yardstick for the growth priced into IS Dongseo (+9.7 % 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 IS Dongseo (010780)?
The free-cash-flow yield on the price is 21.89 %: that much free cash flow IS Dongseo produces per unit of market value. When it exceeds the discount rate of our models (11.4 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of IS Dongseo (010780)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For IS Dongseo it is 12,257 KRW per share (as of Sep 24, 2026), against a price of 14,960 KRW. It is the blended result of 13 valuation models (cash flow, earnings, asset, dividend).
Is IS Dongseo stock overvalued or undervalued in 2026?
As of Sep 24, 2026, 010780 trades above its calculated fair value: price 14,960 KRW, fair value 12,257 KRW, a gap of about −18% (overvalued). 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 010780?
No. The price is what the market pays today (14,960 KRW); the fair value is what the company's own numbers justify (12,257 KRW). For IS Dongseo the two are 2,703 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is IS Dongseo worth?
The market values IS Dongseo at about 546B KRW (market capitalisation, as of Sep 24, 2026). Per share that is 14,960 KRW; our models calculate a fair value of 12,257 KRW per share.
How solid is the balance sheet of IS Dongseo (010780)?
Balance-sheet figures for IS Dongseo (as of Sep 24, 2026): return on equity 5.3%, debt of 0.23 per unit of equity. They feed the Quality Score of 53/100, which measures business quality independently of the share price.
How far is 010780 from its 52-week high?
IS Dongseo trades at 14,960 KRW, about 55% below its 52-week high of 33,450 KRW and 3% above the low of 14,540 KRW (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of 12,257 KRW is for.
Which stocks are comparable to IS Dongseo?
From the same area (Industrials) we also value Quanta Services, Inc, Vinci SA, Comfort Systems USA, Inc, Larsen & Toubro Limited, 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 IS Dongseo stock attractive at the current price?
The data as of Sep 24, 2026: price 14,960 KRW, calculated fair value 12,257 KRW (−18%), Quality Score 53/100, from 13 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 010780 calculated?
We run IS Dongseo through 13 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 12,257 KRW, 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 13.0 % above its aggregate fair value. IS Dongseo itself currently trades above fair value. 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 IS Dongseo (010780)?
The closing price on Sep 23, 2026 was 14,960 KRW. Our model-based fair value is 12,257 KRW, about −18% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with IS Dongseo right now?
The price sits above even our optimistic bull case (12,257 KRW). The favourable scenario is already priced in. Solid but not exceptional quality (53/100) and above fair value, neither a clear bargain nor a standout compounder.
Key figures of IS Dongseo
How large is the market capitalisation of IS Dongseo (010780)?
The market capitalisation of IS Dongseo is 546B KRW (≈ $382M). 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 IS Dongseo (010780)?
The price-to-sales ratio of IS Dongseo is 0.40 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the dividend yield of IS Dongseo (010780)?
The dividend yield of IS Dongseo is 3.3%. 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 IS Dongseo (010780)?
The net margin of IS Dongseo is −4.4% (fiscal year 2025). 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 IS Dongseo (010780)?
The return on equity (ROE) of IS Dongseo is 5.3% (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 IS Dongseo (010780)?
On an EBIT basis the return on assets of IS Dongseo is 6.6% (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 IS Dongseo (010780)?
The operating margin of IS Dongseo is 27.5% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at IS Dongseo (010780)?
Revenue at IS Dongseo is growing +46.1% versus a year earlier (3y avg −18.5%). 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 IS Dongseo (010780)?
Earnings per share at IS Dongseo are growing +82.0% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does IS Dongseo (010780) carry?
The net debt of IS Dongseo is 1.1T KRW (fiscal year 2025, ≈ 11.7 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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