EN DE
Watch Taihan Fiber Optics Co. Ltd for free: we tell you when fair value or trend changes.
Data-driven stock valuation

Taihan Fiber Optics Co. Ltd (010170) fair value: what the stock is really worth

As of Nov 10, 2026: fair value (intrinsic value) of Taihan Fiber Optics Co. Ltd stock KRW 7,325, price KRW 11,820, that is 38.0% below the price, quality 29 out of 100. Rating: strongly overvalued. The value is an estimate: none of our valuation models currently carries, it draws on revenue and assets compared with similar companies. Updated daily.

  1. Keep an eye on it?Free in your watchlist: 5 stocks without an account, 10 with one Yes, for free

Technology KR · ISIN KR7010170009

TF Taihan Fiber Optics Co. Ltd logo Thin data Nov 10, 2026

Taihan Fiber Optics Co. Ltd

010170 · KQ
Very expensive, weak quality

Our calculation puts a fair price 38% below what the stock costs today.

Low debt
Revenue last quarter +18% vs. a year ago.
Fair value 7,325 KRW · Strongly overvalued
Quality 29/100
Weak Growth (revenue 5y +0.5 %/yr in KRW)
Loss-making · -14.8% net margin (TTM)
Negative free cash flow
Trails peers (1/10)
Narrow moat 14/100 · thin data
Thin data
Estimate
Watch Taihan Fiber Optics Co. Ltd for free: we tell you when fair value or trend changes. Watch for free

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

29,100 KRW 444.61 KRW Fair Value 7,325 KRW Jun 2021 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 10, 2026.

How to read this chart

60‑month range 444.61 KRW – 29,100 KRW · fair‑value band 5,494 KRW – 9,157 KRW · the 11,820 KRW price screens above the 7,325 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 10, 2026.

Follow Taihan Fiber Optics Co. in your weekly email

Every Wednesday you see whether Taihan Fiber Optics Co. is on track or worth a review, plus price against fair value. Free, up to 3 stocks.

We send you a confirmation link. Unsubscribe with one click.

Which stocks are undervalued right now? Check free Discover now →

Company profile

Taihan Fiber Optics Co., Ltd researches, develops, and produces optical materials in South Korea and internationally.

Show moreShow less

The company offers optical fibers, aerials, duct / direct buried solutions, air blown solutions, micro module cables, high density, indoor, round, flat, and pre-connected, specialty fibers, medical fibers, OPGW, and power cables.

It also provides FTTH network building solutions, photoelectric composite hybrid cable solutions, fiber-optic cable solutions, optical communication infrastructure solutions, smart campus solutions, education and training, and data management and maintenance services.

The company was formerly known as Optomagic Co. Ltd. and changed its name to Taihan Fiber Optics Co., Ltd in April 2012. Taihan Fiber Optics Co., Ltd was founded in 1974 and is headquartered in Ansan-Si, South Korea.

Stock analysis

Taihan Fiber Optics Co. Ltd (010170) currently trades at 11,820 KRW, while our estimate is 7,325 KRW, 38% below the price, so the stock looks overvalued today.

Show more

Valuation

None of our valuation models currently carries for this company, usually because of losses or heavy investment. The estimate draws on revenue and assets compared with similar companies and is less precise than a model-based fair value.

Scenario range: 5,494 KRW (bear) to 9,157 KRW (bull), the price of 11,820 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 29/100 (below-average quality), in the Technology sector.

Weak Growth: Revenue growth is weak: less than 2 % a year.

Taihan Fiber Optics Co. Ltd reported revenue of 139B KRW in FY2025 versus 157B KRW in FY2021, a compound −2.9%/yr. Reported net income was −28.0B KRW in FY2025.

Key figures

Market cap 1.8T KRW (≈ $1.4B) Small · P/S ratio 13.7 · EPS (TTM) −148.38 KRW · Net margin −14.8% · Return on equity −27.8% · Return on assets (EBIT) −11.6% (5-year average) · Operating margin 2.0% · Revenue (TTM) 156B KRW.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 14 out of 100 (low confidence).

What moves the price

The share trades about 59% below its 52-week high and 570% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Technology peers we cover trades at −48% fair-value upside, at −38%, 010170 screens cheaper than that median.

Fair Value

Bear 5,494 KRW Fair Value 7,325 KRW Bull 9,157 KRW
Price 11,820 KRW · Downside -38.0%
Estimate. None of our valuation models currently carries for this company, usually because of losses or heavy investment. The estimate draws on revenue and assets compared with similar companies and is less precise than a model-based fair value.

Quality Score breakdown

Overall quality 29/100

It rates the business: profits, how they develop, real cash, balance sheet, investing and share count.

Profitability 9
How much profit the company makes from its sales and capital
Quality Growth 52
Are margins and returns getting better?
Cashflow 0
Do the profits arrive as real cash?
Financial strength 43
Debt, balance sheet and risk of trouble
Investment 100
Does it invest with discipline instead of growing at any price?
Low Volatility 0
How calm the share price moves, does not count
Price momentum 53
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 68
Distance to the 52-week high, does not count
New shares 0
Buys back shares or issues new ones?

Open the full quality analysis →

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. 6/100
Revenue growth is weak: less than 2 % a year.
Revenue growth 1 year
−8.7%
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.
−9.8%
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.
+0.5%
Start year 2020 (pandemic). Over 10 years: +2.5% a year
Revenue growth 11 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.
+2.5%
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.
−16.7% (2020) → −13.3% (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

010170 screens overvalued: fair value 38% below the price. Compare with Cisco Systems, Inc →

Compare Taihan Fiber Optics Co. Ltd with another stock

Price, fair value, quality and upside side by side.

Free, no sign-up

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.Communication Equipment · 328 stocks

Beats the industry median on 1/9 measures
Overall it trails its industry peers.
Valuation
Quality Score 29 · Bottom 25%
Fair Value upside −38.0% · Below median
Profitability
Return on assets −12.8% · Bottom 25%
Net margin (12 months) −14.8% · Bottom 25%
Operating margin (12 months) 2.0% · Below median
Growth and dividend
Revenue growth (quarter YoY) 17.8% · Above median
Balance sheet
Debt / equity 0.12× · Above median

Valuation Multiplesvs Communication Equipment median · lower = cheaper

P/B 27.47× · Priciest 25%
P/S (12 months) 11.76× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 6
FUTURE (revenue growth)89 · sector 57
PAST (return on equity)0 · sector 17
HEALTH (low debt)94 · sector 98
DIVIDEND (yield)0 · sector 23

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 Communication Equipment stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Cisco Systems, Inc CSCO $98.15 $108.52 +11% vs 010170
Ubiquiti Inc UI $685.94 $754.25 +10% vs 010170
Eoptolink Technology Inc 300502 ¥183.80 ¥193.60 +5% vs 010170
Zhongji Innolight Co 300308 ¥471.00 ¥342.18 −27% vs 010170
Nokia Oyj NOKIA €7.44 €3.87 −48% vs 010170
Motorola Solutions, Inc MSI $527.38 $249.63 −53% vs 010170
Foxconn Industrial Internet Co 601138 ¥43.18 ¥13.93 −68% vs 010170
Yangtze Optical Fibre And Cable Joint Stock Limited 601869 ¥252.33 ¥59.92 −76% vs 010170
Ciena Corporation CIEN $272.10 $50.06 −82% vs 010170
Lumentum Holdings LITE $585.57 $85.88 −85% vs 010170

Explore undervalued stocks

More undervalued Technology stocks →

All undervalued stocks TechnologyFinancial ServicesHealthcareConsumer CyclicalConsumer DefensiveCommunication ServicesIndustrialsEnergyBasic MaterialsReal EstateUtilities Deeply Undervalued StocksUndervalued High-Quality StocksUndervalued Blue-Chip StocksUndervalued Small-Cap StocksUndervalued Dividend StocksUndervalued 52-Week Low StocksStocks for 2027: Large Companies Below Fair Value

Try a ready-made strategy

Pick a strategy and jump into the live analysis with that exact screen applied.

🥇 Backtested Best 🏆 Big Names 💎 Quality on Sale 🚀 Profitable Growth 🧊 Quality Compounders 💵 Dividend Stars 📈 Strong Momentum 📉 Fallen Angels ⚖️ Deeply Undervalued 🔍 Small-Cap Gems 🏰 Moat at a Fair Price 💼 Insider Buying 🎩 Buffett-Style Quality 📚 Peter Lynch GARP 🧮 Greenblatt Magic Formula 🛡️ Graham Defensive

Discover tools

Stock screenerFilter by region, size and sector Compare toolTwo stocks side by side Extrinsic Value Calculator…Free calculator Peter Lynch Fair Value Formula &…Free calculator
Run the numbers yourself: free valuation calculators
DCF CalculatorP/E Ratio CalculatorPEG Ratio CalculatorGraham NumberPeter Lynch FormulaDDM CalculatorIntrinsic ValueIntrinsic vs Extrinsic ValueP/E Ratio by Sector
For bloggers & editors: embed code + live data

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.

Taihan Fiber Optics Co. Ltd: fair value per Fair Value Calculator

Cite: Fair Value Calculator (2026). "Taihan Fiber Optics Co. Ltd Fair Value". https://www.fairvalue-calculator.com/stock/010170

Frequently asked questions

Is Taihan Fiber Optics Co. Ltd (010170) overvalued or undervalued?
As of Nov 10, 2026, our estimate of fair value is 7,325 KRW versus a price of 11,820 KRW, about 38% lower (overvalued).
What is the fair value of 010170?
Our estimate for Taihan Fiber Optics Co. Ltd is 7,325 KRW (as of Nov 10, 2026), built from audited fundamentals. The current price: 11,820 KRW.
What is the quality score of 010170?
Taihan Fiber Optics Co. Ltd has a Quality Score of 29/100. 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 Taihan Fiber Optics Co. Ltd (010170)?
Our calculated price target is the estimate of 7,325 KRW (as of Nov 10, 2026). Cautious scenario 5,494 KRW, optimistic scenario 9,157 KRW. It is an estimate from revenue and assets compared with similar companies, because none of our valuation models currently carries, not an analyst target.
What is the Taihan Fiber Optics Co. Ltd stock forecast for 2026?
Our estimate puts fair value at 7,325 KRW, about 38% lower versus a price of 11,820 KRW (overvalued). Cautious scenario 5,494 KRW, optimistic scenario 9,157 KRW. The calculation is refreshed regularly with new filings.
What is the revenue of Taihan Fiber Optics Co. Ltd (010170)?
Taihan Fiber Optics Co. Ltd reported trailing-twelve-month revenue of about 156B KRW (latest available figure, as of Nov 10, 2026).
What is the intrinsic value of Taihan Fiber Optics Co. Ltd (010170)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Taihan Fiber Optics Co. Ltd it is 7,325 KRW per share (as of Nov 10, 2026), against a price of 11,820 KRW.
Is Taihan Fiber Optics Co. Ltd stock overvalued or undervalued in 2026?
As of Nov 10, 2026, 010170 trades above its calculated fair value: price 11,820 KRW, fair value 7,325 KRW, a gap of about −38% (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 010170?
No. The price is what the market pays today (11,820 KRW); the fair value is what the company's own numbers justify (7,325 KRW). For Taihan Fiber Optics Co. Ltd the two are 4,495 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is Taihan Fiber Optics Co. Ltd worth?
The market values Taihan Fiber Optics Co. Ltd at about 1.8T KRW (market capitalisation, as of Nov 10, 2026). Per share that is 11,820 KRW; our models calculate a fair value of 7,325 KRW per share.
What do the bullish and bearish scenarios say about 010170?
Our models span a range for Taihan Fiber Optics Co. Ltd: cautious scenario 5,494 KRW, base 7,325 KRW, optimistic 9,157 KRW per share (as of Nov 10, 2026, price 11,820 KRW). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Taihan Fiber Optics Co. Ltd (010170)?
Balance-sheet figures for Taihan Fiber Optics Co. Ltd (as of Nov 10, 2026): return on equity −27.8%, debt of 0.12 per unit of equity. They feed the Quality Score of 29/100, which measures business quality independently of the share price.
How far is 010170 from its 52-week high?
Taihan Fiber Optics Co. Ltd trades at 11,820 KRW, about 59% below its 52-week high of 29,100 KRW and 570% above the low of 1,763 KRW (as of Nov 10, 2026). Distance from the high says nothing about value: that is what the fair value of 7,325 KRW is for.
Which stocks are comparable to Taihan Fiber Optics Co. Ltd?
From the same area (Technology) we also value Cisco Systems, Inc, Foxconn Industrial Internet Co, Zhongji Innolight Co, Motorola Solutions, 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 Taihan Fiber Optics Co. Ltd stock attractive at the current price?
The data as of Nov 10, 2026: price 11,820 KRW, calculated fair value 7,325 KRW (−38%), Quality Score 29/100. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
Is it still worth investing in stocks now?
The global stock market currently sits 15.1% above its aggregate fair value. Taihan Fiber Optics 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 Taihan Fiber Optics Co. Ltd (010170)?
The closing price on Nov 10, 2026 was 11,820 KRW. Our estimate is 7,325 KRW, about 38% lower (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Taihan Fiber Optics Co. Ltd right now?
The price sits above even our optimistic bull case (9,157 KRW). The favourable scenario is already priced in. Weak quality (29/100) 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.

Key figures of Taihan Fiber Optics Co. Ltd

How large is the market capitalisation of Taihan Fiber Optics Co. Ltd (010170)?
The market capitalisation of Taihan Fiber Optics Co. Ltd is 1.8T KRW (≈ $1.4B). 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 Taihan Fiber Optics Co. Ltd (010170)?
The price-to-sales ratio of Taihan Fiber Optics Co. Ltd is 13.7 (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 Taihan Fiber Optics Co. Ltd (010170)?
Earnings per share at Taihan Fiber Optics Co. Ltd are −148.38 KRW. Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Taihan Fiber Optics Co. Ltd (010170)?
The net margin of Taihan Fiber Optics Co. Ltd is −14.8% (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 Taihan Fiber Optics Co. Ltd (010170)?
The return on equity (ROE) of Taihan Fiber Optics Co. Ltd is −27.8% (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 Taihan Fiber Optics Co. Ltd (010170)?
On an EBIT basis the return on assets of Taihan Fiber Optics Co. Ltd is −11.6% (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 Taihan Fiber Optics Co. Ltd (010170)?
The operating margin of Taihan Fiber Optics Co. Ltd is 2.0% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Taihan Fiber Optics Co. Ltd (010170)?
Revenue at Taihan Fiber Optics Co. Ltd is growing +17.8% versus a year earlier (3y avg −9.8%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Taihan Fiber Optics Co. Ltd (010170) generate?
The free cash flow of Taihan Fiber Optics Co. Ltd is −13.1B 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 Taihan Fiber Optics Co. Ltd (010170) carry?
The net debt of Taihan Fiber Optics Co. Ltd is 95.3B 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.
Free · no account needed

Watch Taihan Fiber Optics Co. Ltd in the live analysis

One click puts Taihan Fiber Optics Co. Ltd on your watchlist: fair value and trend at a glance, plus comparison, the diversification check and the 27,000+ stock screener.

Watch for free →

Zero risk: nothing is ever charged. Your watchlist is yours, with or without an account.