L&K Engineering Co Ltd (6139) fair value: what the stock is really worth
As of Nov 6, 2026: fair value (intrinsic value) of L&K Engineering Co Ltd stock TWD 783, price TWD 535, upside +46.3%, quality 71 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 2, 2026.
How to read this chart
60‑month range 25.65 TWD – 955.00 TWD · fair‑value band 548.07 TWD – 1,018 TWD · the 535.00 TWD price screens below the 782.96 TWD fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 2, 2026.
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L&K Engineering Co., Ltd. provides turnkey engineering services in Taiwan, Hongkong, and internationally.
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It installs pipes, heating and air conditioning systems; wholesale and retail of medical equipment; imports, exports, customer development and after sales services.L&K Engineering Co., Ltd. was incorporated in 1978 and is headquartered in Taipei, Taiwan.
Stock analysis
L&K Engineering Co Ltd (6139) currently trades at 535.00 TWD, while our model-based Fair Value estimate is 782.96 TWD, implying the stock looks roughly 32% undervalued today.
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Valuation
Bull case: the Growth DCF group reads highest at a median of 1,477 TWD per share, and 18 of the 26 models we run sit above the 535.00 TWD price.
Bear case: the Dividend Discount group reads lowest at 156.27 TWD, and 8 of the 26 models stay below the price. Data coverage for this calculation is high.
Scenario range: 548.07 TWD (bear) to 1,018 TWD (bull), the price of 535.00 TWD sits below 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 71/100 (solid quality), in the Industrials sector.
Healthy Growth: Revenue growth appears healthy and is supported by profitability and cash-flow quality.
L&K Engineering Co Ltd reported revenue of 77.5B TWD in FY2025 versus 23.8B TWD in FY2021, a compound +34.4%/yr. Reported net income was 7.1B TWD in FY2025, compounding +117.1%/yr from FY2021. FY2021 was a trough year, so the rate overstates the trend.
Key figures
Market cap 126B TWD (≈ $3.8B) Mid · P/E ratio 10.8 · P/S ratio 1.69 · EPS (TTM) 49.62 TWD · Dividend yield 4.3% · Net margin 12.1% · Return on equity 64.2% · Return on assets (EBIT) 7.3% (5-year average).
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 70 out of 100 (low confidence).
What moves the price
The share trades about 44% below its 52-week high and 31% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Industrials peers we cover trades at −42% fair-value upside, at 46%, 6139 screens cheaper than that median.
Fair Value models
Bear548.07 TWDFair Value 782.96 TWDBull1,018 TWD
Price 535.00 TWD · Upside +46.3%
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 (22.75 TWD 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.
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.100/100
Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Revenue growth 1 year
+19.0%
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.
+29.4%
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.
+41.0%
Start year 2020 (pandemic). Over 10 years: +16.0% a year
Revenue growth 24 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.
+14.2%
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What shareholders gained per year (last 5 years), in TWD (mathematically smoothed) ⓘ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. Smoothed = median of all growth paths between the years of the window (trend line on the logarithm of earnings per share): a single extreme year cannot distort the rate. The reported figure stays in the tooltip. Measured in TWD: 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.
+95.2%
Earnings growth per share plus dividend.
Earnings per share, growth per year+90.9%
Dividend (yield on the price)4.3%
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.base effect: 82.4% / 38.7%
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.1% → 13%
2025 sits 138% above its own trend. The rate follows the median trend of the last 5 years, not that single year.
Pace: the 5-year rate starts in 2020 (pandemic)
Growth Forecast
Little optimism in the price
The price assumes less 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).
−21.2%
The company could shrink this much every year for the next five years and today's price would still be justified.
What forecasts expect
n/a
No analyst forecast available.
After inflation (Taiwan: IMF forecast 1.6% a year to 2030, 1.5% from 2016 to 2025) that is about −22.4% 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.Engineering & Construction · 791 stocks
Beats the industry median on 12/14 measures
Overall it ranks above its industry peers.
Valuation
Quality Score71 · Top 25%
Fair Value upside+46.3% · Above median
Profitability
Return on equity (12 months)64.2% · Top 25%
Return on assets11.1% · Top 25%
Net margin (12 months)15.7% · Top 25%
Operating margin (12 months)19.0% · Top 25%
Growth and dividend
Revenue growth (quarter YoY)70.5% · Top 25%
Dividend yield (12 months)4.3% · Top 25%
Balance sheet
Debt / equity0.02× · Below median
Valuation Multiplesvs Engineering & Construction median · lower = cheaper
P/E (12 months)10.8× · Cheaper than median
P/B6.48× · Priciest 25%
P/S (12 months)1.69× · Pricier than median
Price / free cash flow (fiscal year)7.1× · Cheaper than median
For bloggers, editors and developers: paste this into your site or blog (a “Custom HTML” block in WordPress), it shows the current fair value and links back here. Free, plain HTML, and welcome. Full data streams (CSV/JSON) at /developers.
Cite: Fair Value Calculator (2026). "L&K Engineering Co Ltd Fair Value". https://www.fairvalue-calculator.com/stock/6139
Frequently asked questions
Is L&K Engineering Co Ltd (6139) overvalued or undervalued?
As of Nov 2, 2026, our model estimates a fair value of 782.96 TWD versus a price of 535.00 TWD, about +46% upside (undervalued).
What is the fair value of 6139?
Our model-based fair value for L&K Engineering Co Ltd is 782.96 TWD (as of Nov 2, 2026), built from audited fundamentals. The current price: 535.00 TWD.
What is the quality score of 6139?
L&K Engineering Co Ltd has a Quality Score of 71/100. 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 L&K Engineering Co Ltd (6139)?
Our model-based price target is the fair value of 782.96 TWD (as of Nov 2, 2026) from 26 valuation models. Cautious scenario 548.07 TWD, optimistic scenario 1,018 TWD. It is a calculation from audited fundamentals, not an analyst target.
What is the L&K Engineering Co Ltd stock forecast for 2026?
Our models put fair value at 782.96 TWD, about +46% upside versus a price of 535.00 TWD (undervalued). Cautious scenario 548.07 TWD, optimistic scenario 1,018 TWD. The calculation is refreshed regularly with new filings.
What is the revenue of L&K Engineering Co Ltd (6139)?
L&K Engineering Co Ltd reported trailing-twelve-month revenue of about 96.4B TWD (latest available figure, as of Nov 2, 2026).
Does L&K Engineering Co Ltd pay a dividend?
L&K Engineering Co Ltd currently shows a dividend yield of 4.30% relative to its recent price (as of Nov 2, 2026).
How much is the dividend of L&K Engineering Co Ltd (6139) and when is the ex-dividend date?
L&K Engineering Co Ltd pays a dividend of 23.00 TWD per share a year, a dividend yield of 4.3%. The last ex-dividend date was Sep 2, 2026. The payout ratio is 46.4% of earnings. Free cash flow covers the dividend 4.25 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 L&K Engineering Co Ltd (6139)?
For today's price to be fair in a discounted-cash-flow model, L&K Engineering Co Ltd would have to grow free cash flow by -21.2 % per year for five years (discount rate 10.3 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +41.0 % per year. As of Nov 2, 2026.
What discount rate (WACC) does the fair value of 6139 use?
Our models discount L&K Engineering Co Ltd at 10.3 %: a base by market capitalisation (mid), damped by beta 1.02, country premium for Taiwan. 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 L&K Engineering Co Ltd that is -21.2 % per year for five years, then slowing evenly to 2 % by year ten, using the same discount rate (10.3 %) and the same formula as our fair value.
How much growth has L&K Engineering Co Ltd (6139) delivered so far?
Over the past 5 years revenue at L&K Engineering Co Ltd grew +41.0 % a year. The price currently implies free-cash-flow growth of -21.2 % 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 L&K Engineering Co Ltd (6139) growing?
The median revenue growth in the sector is +7.8 % a year. That is the yardstick for the growth priced into L&K Engineering Co Ltd (-21.2 % per year): it shows whether the expectation is within the usual range or beyond it.
What is the free cash flow yield of L&K Engineering Co Ltd (6139)?
The free-cash-flow yield on the price is 18.24 %: that much free cash flow L&K Engineering Co Ltd produces per unit of market value. When it exceeds the discount rate of our models (10.3 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of L&K Engineering Co Ltd (6139)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For L&K Engineering Co Ltd it is 782.96 TWD per share (as of Nov 2, 2026), against a price of 535.00 TWD. 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 L&K Engineering Co Ltd stock overvalued or undervalued in 2026?
As of Nov 2, 2026, 6139 trades below its calculated fair value: price 535.00 TWD, fair value 782.96 TWD, a gap of about +46% (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 6139?
No. The price is what the market pays today (535.00 TWD); the fair value is what the company's own numbers justify (782.96 TWD). For L&K Engineering Co Ltd the two are 247.96 TWD per share apart. That gap is exactly why we show both numbers side by side.
How much is L&K Engineering Co Ltd worth?
The market values L&K Engineering Co Ltd at about 126B TWD (market capitalisation, as of Nov 2, 2026). Per share that is 535.00 TWD; our models calculate a fair value of 782.96 TWD per share.
What do the bullish and bearish scenarios say about 6139?
Our models span a range for L&K Engineering Co Ltd: cautious scenario 548.07 TWD, base 782.96 TWD, optimistic 1,018 TWD per share (as of Nov 2, 2026, price 535.00 TWD). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 6139?
L&K Engineering Co Ltd trades at a price-to-earnings ratio of 10.8 (as of Nov 2, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of 782.96 TWD is built from several models across several years. Median P/E at fiscal year-end, 10 fiscal years (2016 to 2025), reported earnings: 13.6. Other multiples: P/B 6.5, P/S 1.7, EV/EBITDA 6.4.
How solid is the balance sheet of L&K Engineering Co Ltd (6139)?
Balance-sheet figures for L&K Engineering Co Ltd (as of Nov 2, 2026): return on equity 64.2%, debt of 0.02 per unit of equity. They feed the Quality Score of 71/100, which measures business quality independently of the share price.
How far is 6139 from its 52-week high?
L&K Engineering Co Ltd trades at 535.00 TWD, about 44% below its 52-week high of 955.00 TWD and 31% above the low of 407.00 TWD (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 782.96 TWD is for.
Which stocks are comparable to L&K Engineering Co Ltd?
From the same area (Industrials) we also value Quanta Services, Inc, Vinci SA, Larsen & Toubro Limited, Comfort Systems USA, 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 L&K Engineering Co Ltd stock attractive at the current price?
The data as of Nov 2, 2026: price 535.00 TWD, calculated fair value 782.96 TWD (+46%), Quality Score 71/100, 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 6139 calculated?
We run L&K Engineering 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 782.96 TWD 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 13.0% above its aggregate fair value. L&K Engineering Co Ltd currently trades 32% 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 L&K Engineering Co Ltd (6139)?
The closing price on Nov 6, 2026 was 535.00 TWD. Our model-based fair value is 782.96 TWD, about +46% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with L&K Engineering Co Ltd right now?
The price is below even our cautious bear case (548.07 TWD). The market is more pessimistic than our downside scenario. Solid quality (71/100) at a price below fair value, the discount is the argument here, not the business quality. A fairly wide model range (548.07 TWD to 1,018 TWD) leaves room in how you read the outcome.
Where does the earnings growth of L&K Engineering Co Ltd (6139) come from?
Earnings per share at L&K Engineering Co Ltd grew +32.7 % a year from 2014 to 2025. Broken into its drivers: revenue per share +14.4 %, EBIT margin +13.4 %, tax rate +2.1 %, residual (interest, one-offs) +0.2 %. 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 L&K Engineering Co Ltd
How large is the market capitalisation of L&K Engineering Co Ltd (6139)?
The market capitalisation of L&K Engineering Co Ltd is 126B TWD (≈ $3.8B). 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 L&K Engineering Co Ltd (6139)?
The price-to-sales ratio of L&K Engineering Co Ltd is 1.69 (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 L&K Engineering Co Ltd (6139)?
Earnings per share at L&K Engineering Co Ltd are 49.62 TWD (price ÷ EPS = P/E 10.8). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of L&K Engineering Co Ltd (6139)?
The dividend yield of L&K Engineering Co Ltd is 4.3% (payout 46.4%). 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 L&K Engineering Co Ltd (6139)?
The net margin of L&K Engineering Co Ltd is 12.1% (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 L&K Engineering Co Ltd (6139)?
The return on equity (ROE) of L&K Engineering Co Ltd is 64.2% (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 L&K Engineering Co Ltd (6139)?
On an EBIT basis the return on assets of L&K Engineering Co Ltd is 7.3% (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 L&K Engineering Co Ltd (6139)?
The operating margin of L&K Engineering Co Ltd is 19.0% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at L&K Engineering Co Ltd (6139)?
Revenue at L&K Engineering Co Ltd is growing +70.5% versus a year earlier (3y avg +29.4%). 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 L&K Engineering Co Ltd (6139)?
Earnings per share at L&K Engineering Co Ltd are growing +476% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net cash does L&K Engineering Co Ltd (6139) hold?
L&K Engineering Co Ltd holds more cash than debt, 43.5B TWD net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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Broad data
Nov 2, 2026