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Seoul Electronics & Telecom Co. Ltd (027040) fair value: what the stock is really worth

As of Sep 23, 2026: fair value of Seoul Electronics & Telecom Co. Ltd KRW 408, price KRW 1,895, upside -78.5%, quality 43 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
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Technology · KR · ISIN KR7027040005

SE Thin data Sep 24, 2026

Seoul Electronics & Telecom Co. Ltd

027040 · KQ

Weakest SetupStrongly overvalued and low quality.

!Fair value 407.98 KRW · Strongly overvalued (−78%)
!Quality 43/100
!Weak Growth (revenue 5y −10.8 %/yr)
!Loss-making · -5.4% net margin (TTM)
!Low debt · negative free cash flow
!Trails peers (1/8)
!Narrow moat 9/100
!Evidence only low, so the estimate is less certain
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What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

5,250 KRW 900.00 KRW Fair Value 407.98 KRW Mar 2021 Sep 2026

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 900.00 KRW – 5,250 KRW · fair‑value band 304.46 KRW – 608.92 KRW · the 1,895 KRW price screens above the 407.98 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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Company profile

Seoul Electronics & Telecom Co., Ltd. produces and sells power transformers and switching mode power supply (SMPS) products in South Korea and internationally.

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Seoul Electronics & Telecom Co., Ltd. produces and sells power transformers and switching mode power supply (SMPS) products in South Korea and internationally. The company offers linear transformers for use in general electronic and electrical devices, as well as in household, communication, and medical purposes; and industrial transformers for industrial equipment, including ships, buildings, factories, and power plants. It also provides troidal transformers used in audio equipment, measuring instruments, and medical equipment; switching transformers for use in high frequency band and power devices; line filter for homes and industrial use; SMPS, a power supply device; and POS and wired/wireless payment terminals, as well as electric components for EVs. In addition, it provides EMS products, such as LED lighting devices, beauty devices, communication modems, humidifiers, home appliances, massagers, and low-frequency therapy devices. The company was formerly known as Seoul Kyeong Jeonki Co., Ltd. and changed its name to Seoul Electronics & Telecom Co., Ltd. in January 1997. Seoul Electronics & Telecom Co., Ltd. was founded in 1983 and is headquartered in Incheon, South Korea.

Stock analysis

Seoul Electronics & Telecom Co. Ltd (027040) currently trades at 1,895 KRW, while our model-based Fair Value estimate is 407.98 KRW, implying the stock looks roughly 364.5% overvalued today.

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Valuation

How firm this estimate is: it rests on 1 models at a data quality of 95/100, which puts the evidence level at low.

Scenario range: 304.46 KRW (bear) to 608.92 KRW (bull), the price of 1,895 KRW sits above 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 43/100 (below-average quality), in the Technology sector.

Weak Growth: Revenue is shrinking: the last year, the last three and the last five years are all negative.

Seoul Electronics & Telecom Co. Ltd reported revenue of 33.7B KRW in FY2025 versus 69.1B KRW in FY2021, a compound −16.4%/yr. Reported net income was −5.3B KRW in FY2025.

Key figures

Market cap 26.4B KRW (≈ $19.4M) · P/S ratio 0.80 · Net margin −15.8% · Return on equity −19.4% · Return on assets (EBIT) −3.4% · Operating margin −12.6% · Revenue (TTM) 30.9B KRW · Revenue growth (YoY) −32.6%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 28 out of 100 (medium confidence).

What moves the price

The share trades about 61% below its 52-week high and 111% above its 52-week low, currently above its 200-day average.

For context, the median of 10 Technology peers we cover trades at −66% fair-value upside, at −78%, 027040 screens richer than that median.

Fair Value models

Bear 304.46 KRW Fair Value 407.98 KRW Bull 608.92 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.
Highest evidence
NCAV (Graham) 314.34 KRW 421.21 KRW 628.68 KRW 54
All 1 models by family
Asset-Based
NCAV (Graham) 314.34 KRW 421.21 KRW 628.68 KRW 54

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Quality Score breakdown

Overall quality 43/100

Of which business quality 40 · Market factors (momentum, volatility) 65

Profitability 17
Margins and returns on capital today
Quality Growth 37
Are margins and returns improving?
Cashflow 0
Earnings quality: real cash, not paper profit
Fin. Strength 33
Balance sheet, leverage, solvency risk
Investment 100
Disciplined investing over empire-building
Low Volatility 50
Calm price path (market factor)
Momentum 80
Price trend over the last 3–12 months (market factor)
52W Momentum 58
Distance to the 52-week high (market factor)
Net Issuance 100
Share count: buybacks or dilution?

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Revenue & earnings trend

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. 0/100
Revenue is shrinking: the last year, the last three and the last five years are all negative.
Revenue growth 1 year
−5.8%
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.
−13.3%
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.
−10.8%
Start year 2020 (pandemic). Over 10 years: −3.2% a year
Revenue growth 23 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.
−1.6%
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.
−2.1% (2020) → −4.8% (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

027040 screens 364% overvalued. Compare with Amphenol Corporation →

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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.Electronic Components · 655 stocks

Beats the industry median on 1/7 measures
Overall it trails its industry peers.
Valuation
Quality Score 40 · Bottom 25%
Fair Value upside −79% · Bottom 25%
Profitability
Return on assets −3% · Bottom 25%
Net margin (TTM) −5% · Bottom 25%
Operating margin (TTM) −13% · Bottom 25%
Growth and dividend
Revenue growth −33% · Bottom 25%
Balance sheet
Debt / equity 0.07× · Below median

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 0
FUTURE (revenue growth)0 · sector 38
PAST (return on equity)0 · sector 26
HEALTH (low debt)96 · sector 95
DIVIDEND (yield)0 · sector 25

VALUE 0: the price sits above our fair-value range.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Electronic Components stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Amphenol Corporation APH $82.19 $90.41 +10%
Delta Electronics, Inc 2308 1,910 TWD 519.57 TWD −73%
Corning Incorporated GLW $154.48 $34.01 −78%
Hon Hai Precision Industry Co 2317 250.50 TWD 293.80 TWD +17%
Samsung Electro-Mechanics Co 009150 1,507,000 KRW 171,572 KRW −89%
Luxshare Precision Industry Co 002475 ¥54.84 ¥18.55 −66%
Suzhou Dongshan Precision Manufacturing Co 002384 ¥198.12 ¥21.19 −89%
TE Connectivity plc TEL $213.48 $140.75 −34%
Elite Material Co 2383 5,050 TWD 800.51 TWD −84%
Yageo Corporation 2327 580.00 TWD 527.64 TWD −9%

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Seoul Electronics & Telecom Co. Ltd · Fair Value
407.98 KRW −364%Fair Value
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Cite: Fair Value Calculator (2026). "Seoul Electronics & Telecom Co. Ltd Fair Value". https://www.fairvalue-calculator.com/stock/027040

Frequently asked questions

Is Seoul Electronics & Telecom Co. Ltd (027040) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of 407.98 KRW versus a price of 1,895 KRW, about −78% upside (overvalued).
What is the fair value of 027040?
Our model-based fair value for Seoul Electronics & Telecom Co. Ltd is 407.98 KRW (as of Sep 24, 2026), built from audited fundamentals. The current price: 1,895 KRW.
What is the quality score of 027040?
Seoul Electronics & Telecom Co. Ltd has a Quality Score of 43/100. 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 Seoul Electronics & Telecom Co. Ltd (027040)?
Our model-based price target is the fair value of 407.98 KRW (as of Sep 24, 2026) from 1 valuation models. Cautious scenario 304.46 KRW, optimistic scenario 608.92 KRW. It is a calculation from audited fundamentals, not an analyst target.
What is the Seoul Electronics & Telecom Co. Ltd stock forecast for 2026?
Our models put fair value at 407.98 KRW, about −78% upside versus a price of 1,895 KRW (overvalued). Cautious scenario 304.46 KRW, optimistic scenario 608.92 KRW. The calculation is refreshed regularly with new filings.
What is the revenue of Seoul Electronics & Telecom Co. Ltd (027040)?
Seoul Electronics & Telecom Co. Ltd reported trailing-twelve-month revenue of about 30.9B KRW (latest available figure, as of Sep 24, 2026).
What is the intrinsic value of Seoul Electronics & Telecom Co. Ltd (027040)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Seoul Electronics & Telecom Co. Ltd it is 407.98 KRW per share (as of Sep 24, 2026), against a price of 1,895 KRW. It is the blended result of 1 valuation models (cash flow, earnings, asset, dividend).
Is Seoul Electronics & Telecom Co. Ltd stock overvalued or undervalued in 2026?
As of Sep 24, 2026, 027040 trades above its calculated fair value: price 1,895 KRW, fair value 407.98 KRW, a gap of about −78% (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 027040?
No. The price is what the market pays today (1,895 KRW); the fair value is what the company's own numbers justify (407.98 KRW). For Seoul Electronics & Telecom Co. Ltd the two are 1,487 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is Seoul Electronics & Telecom Co. Ltd worth?
The market values Seoul Electronics & Telecom Co. Ltd at about 26.4B KRW (market capitalisation, as of Sep 24, 2026). Per share that is 1,895 KRW; our models calculate a fair value of 407.98 KRW per share.
What do the bullish and bearish scenarios say about 027040?
Our models span a range for Seoul Electronics & Telecom Co. Ltd: cautious scenario 304.46 KRW, base 407.98 KRW, optimistic 608.92 KRW per share (as of Sep 24, 2026, price 1,895 KRW). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Seoul Electronics & Telecom Co. Ltd (027040)?
Balance-sheet figures for Seoul Electronics & Telecom Co. Ltd (as of Sep 24, 2026): return on equity −19.4%, debt of 0.07 per unit of equity. They feed the Quality Score of 43/100, which measures business quality independently of the share price.
How far is 027040 from its 52-week high?
Seoul Electronics & Telecom Co. Ltd trades at 1,895 KRW, about 61% below its 52-week high of 4,905 KRW and 111% above the low of 900.00 KRW (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of 407.98 KRW is for.
Which stocks are comparable to Seoul Electronics & Telecom Co. Ltd?
From the same area (Technology) we also value Amphenol Corporation, Delta Electronics, Inc, Corning Incorporated, Hon Hai Precision Industry Co, 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 Seoul Electronics & Telecom Co. Ltd stock attractive at the current price?
The data as of Sep 24, 2026: price 1,895 KRW, calculated fair value 407.98 KRW (−78%), Quality Score 43/100, from 1 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 027040 calculated?
We run Seoul Electronics & Telecom Co. Ltd through 1 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 407.98 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. Seoul Electronics & Telecom Co. Ltd 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 Seoul Electronics & Telecom Co. Ltd (027040)?
The closing price on Sep 23, 2026 was 1,895 KRW. Our model-based fair value is 407.98 KRW, about −78% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Seoul Electronics & Telecom Co. Ltd right now?
The price sits above even our optimistic bull case (608.92 KRW). The favourable scenario is already priced in. Weak quality (43/100) and above fair value at the same time, the margin of safety is missing on both counts. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. A fairly wide model range (304.46 KRW to 608.92 KRW) leaves room in how you read the outcome.

Key figures of Seoul Electronics & Telecom Co. Ltd

How large is the market capitalisation of Seoul Electronics & Telecom Co. Ltd (027040)?
The market capitalisation of Seoul Electronics & Telecom Co. Ltd is 26.4B KRW (≈ $19.4M). 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 Seoul Electronics & Telecom Co. Ltd (027040)?
The price-to-sales ratio of Seoul Electronics & Telecom Co. Ltd is 0.80 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the net margin of Seoul Electronics & Telecom Co. Ltd (027040)?
The net margin of Seoul Electronics & Telecom Co. Ltd is −15.8% (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 Seoul Electronics & Telecom Co. Ltd (027040)?
The return on equity (ROE) of Seoul Electronics & Telecom Co. Ltd is −19.4% (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 Seoul Electronics & Telecom Co. Ltd (027040)?
On an EBIT basis the return on assets of Seoul Electronics & Telecom Co. Ltd is −3.4% (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 Seoul Electronics & Telecom Co. Ltd (027040)?
The operating margin of Seoul Electronics & Telecom Co. Ltd is −12.6% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Seoul Electronics & Telecom Co. Ltd (027040)?
Revenue at Seoul Electronics & Telecom Co. Ltd is growing −32.6% versus a year earlier (3y avg −13.3%). 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 Seoul Electronics & Telecom Co. Ltd (027040)?
Earnings per share at Seoul Electronics & Telecom Co. Ltd are growing −14.8% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Seoul Electronics & Telecom Co. Ltd (027040) generate?
The free cash flow of Seoul Electronics & Telecom Co. Ltd is −3.3B KRW (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Seoul Electronics & Telecom Co. Ltd (027040) carry?
The net debt of Seoul Electronics & Telecom Co. Ltd is 3.6B KRW (fiscal year 2025). 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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