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Optotech Corp (2340) fair value: what the stock is really worth

As of Nov 6, 2026: fair value (intrinsic value) of Optotech Corp stock TWD 19.70, price TWD 33.95, that is 42.0% below the price, quality 29 out of 100. Rating: strongly overvalued. Calculated from audited financials with one of our 26 valuation models and 37 quality factors, updated daily.

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Technology TW · ISIN TW0002340007

OC Optotech Corp logo Thin data Nov 4, 2026

Optotech Corp

2340 · TW
Very expensive, weak quality

Our calculation puts a fair price 42% below what the stock costs today.

Profit last quarter +29% vs. a year ago.
Moderate debt
Fair value 19.70 TWD · Strongly overvalued (−42.0%)
Quality 29/100
Weak Growth (revenue 5y −5.0 %/yr in TWD)
Loss-making · -21.8% net margin (TTM)
Negative free cash flow
Trails peers (2/12)
Narrow moat 12/100
Thin data
⟳ Cyclical
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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

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Price vs Fair Value

71.90 TWD 17.80 TWD Fair Value 19.70 TWD Jun 2021 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 4, 2026.

How to read this chart

60‑month range 17.80 TWD – 71.90 TWD · fair‑value band 14.70 TWD – 29.40 TWD · the 33.95 TWD price screens above the 19.70 TWD fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 4, 2026.

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Company profile

Taiwan-Asia Semiconductor Corporation engages in the manufacture and sale of semiconductor components in Taiwan and internationally.

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The company offers sensing devices, such as photodiode, phototransistor, and phototriac; power devices, including power MOSFET, TVS diode, zener diode, and resistor; and general and high brightness LED, and VCSEL. The company's products are used in consumer and wearable, industry, automotive, home appliance, security, display, and lighting applications.

Taiwan-Asia Semiconductor Corporation was formerly known as Opto Tech Corporation. Taiwan-Asia Semiconductor Corporation was founded in 1983 and is based in Hsinchu City, Taiwan.

Stock analysis

Optotech Corp (2340) currently trades at 33.95 TWD, while our model-based Fair Value estimate is 19.70 TWD, 42% below the price, so the stock looks overvalued today.

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Valuation

How firm this estimate is: it rests on 1 models at a data quality of 91/100, which puts the data coverage at low.

Scenario range: 14.70 TWD (bear) to 29.40 TWD (bull), the price of 33.95 TWD 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.

Optotech Corp reported revenue of 4.3B TWD in FY2025 versus 6.1B TWD in FY2021, a compound −8.4%/yr. Reported net income was −1.3B TWD in FY2025.

Key figures

Market cap 14.9B TWD (≈ $454M) Small · P/S ratio 4.12 · EPS (TTM) −2.10 TWD · Dividend yield 0.1% · Net margin −21.8% · Return on equity −15.1% · Return on assets (EBIT) 0.1% (5-year average) · Operating margin −18.5%.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 12 out of 100 (medium confidence).

What moves the price

The share trades about 37% below its 52-week high and 48% above its 52-week low, currently above its 200-day average.

For context, the median of 10 Technology peers we cover trades at −7% fair-value upside, at −42%, 2340 screens richer than that median.

Fair Value models

Bear 14.70 TWD Fair Value 19.70 TWD Bull 29.40 TWD
Price 33.95 TWD · Downside -42.0%
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. 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
NCAV (Graham) 7.35 TWD 9.85 TWD 14.70 TWD 54
All 1 models by family
Asset-Based
NCAV (Graham) 7.35 TWD 9.85 TWD 14.70 TWD 54

The fair value above starts from this blend and is adjusted for a cyclical trough year.

Open the full fair value analysis →

Quality Score breakdown

Overall quality 29/100

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

Profitability 3
How much profit the company makes from its sales and capital
Quality Growth 14
Are margins and returns getting better?
Cashflow 0
Do the profits arrive as real cash?
Financial strength 50
Debt, balance sheet and risk of trouble
Investment 47
Does it invest with discipline instead of growing at any price?
Low Volatility 14
How calm the share price moves, does not count
Price momentum 57
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 47
Distance to the 52-week high, does not count
New shares 78
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. 0/100
Revenue growth is weak: less than 2 % a year.
Revenue growth 1 year
+0.6%
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.
−1.5%
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.
−5.0%
Start year 2020 (pandemic). Over 10 years: −2.6% 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.
−0.8%
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.
11.6% (2020) → −29.7% (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

2340 screens overvalued: fair value 42% below the price. Compare with NVIDIA 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.Semiconductors · 370 stocks

Beats the industry median on 2/11 measures
Overall it trails its industry peers.
Valuation
Quality Score 29 · Bottom 25%
Fair Value upside −42.0% · Below median
Profitability
Return on assets −8.6% · Bottom 25%
Net margin (12 months) −21.8% · Bottom 25%
Operating margin (12 months) −18.5% · Bottom 25%
Growth and dividend
Revenue growth (quarter YoY) 5.1% · Below median
Dividend yield (12 months) 0.1% · Bottom 25%
Balance sheet
Debt / equity 0.52× · Highest 25%

Valuation Multiplesvs Semiconductors median · lower = cheaper

P/B 2.27× · Cheaper than median
P/S (12 months) 3.40× · Cheaper than median
PEG 1.86× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 0
FUTURE (revenue growth)26 · sector 100
PAST (return on equity)0 · sector 28
HEALTH (low debt)74 · sector 96
DIVIDEND (yield)1 · sector 20

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 Semiconductors stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
SK hynix Inc 000660 1,132,000 KRW 1,501,896 KRW +33% vs 2340
Taiwan Semiconductor Manufacturing Company TSM $375.44 $412.98 +10% vs 2340
NVIDIA Corporation NVDA $186.64 $198.56 +6% vs 2340
Broadcom Inc AVGO $293.69 $300.84 +2% vs 2340
Intel Corporation INTC $56.28 $52.14 −7% vs 2340
Micron Technology, Inc MU $690.00 $619.48 −10% vs 2340
Analog Devices, Inc ADI $363.56 $262.04 −28% vs 2340
Marvell Technology, Inc MRVL $141.20 $87.64 −38% vs 2340
Advanced Micro Devices, Inc AMD $449.04 $148.02 −67% vs 2340
Texas Instruments Incorporated TXN $277.36 $81.25 −71% vs 2340

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Optotech Corp: fair value per Fair Value Calculator

Cite: Fair Value Calculator (2026). "Optotech Corp Fair Value". https://www.fairvalue-calculator.com/stock/2340

Frequently asked questions

Is Optotech Corp (2340) overvalued or undervalued?
As of Nov 4, 2026, our model estimates a fair value of 19.70 TWD versus a price of 33.95 TWD, about 42% lower (overvalued).
What is the fair value of 2340?
Our model-based fair value for Optotech Corp is 19.70 TWD (as of Nov 4, 2026), built from audited fundamentals. The current price: 33.95 TWD.
What is the quality score of 2340?
Optotech Corp 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 Optotech Corp (2340)?
Our model-based price target is the fair value of 19.70 TWD (as of Nov 4, 2026) from 1 valuation models. Cautious scenario 14.70 TWD, optimistic scenario 29.40 TWD. It is a calculation from audited fundamentals, not an analyst target.
What is the Optotech Corp stock forecast for 2026?
Our models put fair value at 19.70 TWD, about 42% lower versus a price of 33.95 TWD (overvalued). Cautious scenario 14.70 TWD, optimistic scenario 29.40 TWD. The calculation is refreshed regularly with new filings.
What is the revenue of Optotech Corp (2340)?
Optotech Corp reported trailing-twelve-month revenue of about 4.4B TWD (latest available figure, as of Nov 4, 2026).
Does Optotech Corp pay a dividend?
Optotech Corp currently shows a dividend yield of 0.06% relative to its recent price (as of Nov 4, 2026).
How much is the dividend of Optotech Corp (2340)?
Optotech Corp has a dividend yield of 0.1%.
What is the intrinsic value of Optotech Corp (2340)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Optotech Corp it is 19.70 TWD per share (as of Nov 4, 2026), against a price of 33.95 TWD. It is the blended result of 1 valuation models in 1 family (Asset-Based).
Is Optotech Corp stock overvalued or undervalued in 2026?
As of Nov 4, 2026, 2340 trades above its calculated fair value: price 33.95 TWD, fair value 19.70 TWD, a gap of about −42% (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 2340?
No. The price is what the market pays today (33.95 TWD); the fair value is what the company's own numbers justify (19.70 TWD). For Optotech Corp the two are 14.25 TWD per share apart. That gap is exactly why we show both numbers side by side.
How much is Optotech Corp worth?
The market values Optotech Corp at about 14.9B TWD (market capitalisation, as of Nov 4, 2026). Per share that is 33.95 TWD; our models calculate a fair value of 19.70 TWD per share.
What do the bullish and bearish scenarios say about 2340?
Our models span a range for Optotech Corp: cautious scenario 14.70 TWD, base 19.70 TWD, optimistic 29.40 TWD per share (as of Nov 4, 2026, price 33.95 TWD). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the PEG ratio of 2340?
The PEG ratio of Optotech Corp is 1.86 (P/E divided by earnings growth, as of Nov 4, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of Optotech Corp (2340)?
Balance-sheet figures for Optotech Corp (as of Nov 4, 2026): return on equity −15.1%, debt of 0.52 per unit of equity. They feed the Quality Score of 29/100, which measures business quality independently of the share price.
How far is 2340 from its 52-week high?
Optotech Corp trades at 33.95 TWD, about 37% below its 52-week high of 53.70 TWD and 48% above the low of 22.90 TWD (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 19.70 TWD is for.
Which stocks are comparable to Optotech Corp?
From the same area (Technology) we also value NVIDIA Corporation, Taiwan Semiconductor Manufacturing Company, Broadcom Inc, Micron Technology, 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 Optotech Corp stock attractive at the current price?
The data as of Nov 4, 2026: price 33.95 TWD, calculated fair value 19.70 TWD (−42%), Quality Score 29/100, 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 2340 calculated?
We run Optotech Corp through 1 models from 1 family: Asset-Based. Every model gets the same audited fundamentals; the fair value of 19.70 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. Optotech Corp 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 Optotech Corp (2340)?
The closing price on Nov 6, 2026 was 33.95 TWD. Our model-based fair value is 19.70 TWD, about 42% lower (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Optotech Corp right now?
The price sits above even our optimistic bull case (29.40 TWD). 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. A fairly wide model range (14.70 TWD to 29.40 TWD) leaves room in how you read the outcome.

Key figures of Optotech Corp

How large is the market capitalisation of Optotech Corp (2340)?
The market capitalisation of Optotech Corp is 14.9B TWD (≈ $454M). 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 Optotech Corp (2340)?
The price-to-sales ratio of Optotech Corp is 4.12 (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 Optotech Corp (2340)?
Earnings per share at Optotech Corp are −2.10 TWD. Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Optotech Corp (2340)?
The dividend yield of Optotech Corp is 0.1%. 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 Optotech Corp (2340)?
The net margin of Optotech Corp is −21.8% (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 Optotech Corp (2340)?
The return on equity (ROE) of Optotech Corp is −15.1% (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 Optotech Corp (2340)?
On an EBIT basis the return on assets of Optotech Corp is 0.1% (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 Optotech Corp (2340)?
The operating margin of Optotech Corp is −18.5% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Optotech Corp (2340)?
Revenue at Optotech Corp is growing +5.1% versus a year earlier (3y avg −1.5%). 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 Optotech Corp (2340)?
Earnings per share at Optotech Corp are growing +29.2% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Optotech Corp (2340) generate?
The free cash flow of Optotech Corp is −1.3B TWD (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 Optotech Corp (2340) carry?
The net debt of Optotech Corp is 3.0B TWD (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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