Shian Yih Electronic Industry Co Ltd (3531) fair value: what the stock is really worth
As of Sep 24, 2026: fair value of Shian Yih Electronic Industry Co Ltd TWD 34.00, price TWD 21.25, upside +60.0%, quality 64 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 16.37 TWD – 33.13 TWD · fair‑value band 29.13 TWD – 34.00 TWD · the 21.25 TWD price screens below the 34.00 TWD 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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Shian Yih Electronic Industry Co.,Ltd, together with its subsidiaries, manufactures and sells of back light modules in Taiwan, China, Japan, the United States, and internationally.
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Shian Yih Electronic Industry Co.,Ltd, together with its subsidiaries, manufactures and sells of back light modules in Taiwan, China, Japan, the United States, and internationally. It provides small to medium size LED back light modules for automotive, tablets, and watches; light guide films; motorcycle and vehicle LED headlight modules; precision injection molds for electronic housing, mobile phones and MP4, microphone, and car and navigation system backlight housing. The company also offers plastic products, including plastic frames, light guide plates, precision plastic parts, molds, mold design and manufacturing, and other products. Shian Yih Electronic Industry Co.,Ltd was incorporated in 1979 and is headquartered in Taichung, Taiwan.
Stock analysis
Shian Yih Electronic Industry Co Ltd (3531) currently trades at 21.25 TWD, while our model-based Fair Value estimate is 34.00 TWD, implying the stock looks roughly 37.5% undervalued today.
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Valuation
Bull case: the Growth DCF group reads highest at a median of 41.95 TWD per share, and 12 of the 21 models we run sit above the 21.25 TWD price.
Bear case: the Growth Earnings group reads lowest at 6.20 TWD, and 9 of the 21 models stay below the price. Evidence for this calculation is low.
Scenario range: 29.13 TWD (bear) to 34.00 TWD (bull), the price of 21.25 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 64/100 (solid quality), in the Technology sector.
Weak Growth: Revenue is shrinking: the last year, the last three and the last five years are all negative.
Shian Yih Electronic Industry Co Ltd reported revenue of 1.3B TWD in FY2025 versus 2.1B TWD in FY2021, a compound −11.0%/yr. Reported net income was 18.1M TWD in FY2025, compounding −32.0%/yr from FY2021.
Key figures
Market cap 1.3B TWD (≈ $40.9M) · P/E ratio 73.3 · P/S ratio 1.02 · EPS (TTM) 0.2900 TWD · Dividend yield 2.4% · Net margin 1.4% · Return on equity 0.6% · Return on assets (EBIT) 2.0%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 42 out of 100 (low confidence).
What moves the price
The share trades about 10% below its 52-week high and 6% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −41% fair-value upside, at 60%, 3531 screens cheaper than that median.
Fair Value models
Bear 29.13 TWDFair Value 34.00 TWDBull 34.00 TWD
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.40/100
Revenue is shrinking: the last year, the last three and the last five years are all negative.
Revenue growth 1 year
−18.1%
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.
−16.7%
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.
−5.3%
Start year 2020 (pandemic). Over 10 years: −3.0% a year
Revenue growth 17 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.
−2.1%
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What shareholders gained per year (last 5 years), in TWD ⓘ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. 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.
−24.2%
Earnings growth per share plus dividend.
Earnings per share, growth per year−26.6%
Dividend (yield on the price)2.4%
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.5% → 0%
⚠ Revenue per share shrinking 3.0%/yr over ~6Y (margins eroding too) ⓘStructural-decline marker: revenue PER SHARE has fallen over the last decade (robust median trend, not a single year). Backtested across 2005 to 2017, such businesses trailed the market by about 2.5 percentage points per year. Display only: it does not change the fair value or the quality score.
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).
−28.9%
Yearly growth needed for the next five years to justify today's price.
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 −30.0% a year for the price.
Compare Shian Yih Electronic Industry Co Ltd with another stock
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.Semiconductors · 338 stocks
Beats the industry median on 8/14 measures
A mixed picture versus its industry peers.
Valuation
Quality Score64 · Above median
Fair Value upside+60% · Top 25%
Profitability
Return on equity (TTM)1% · Below median
Return on assets0% · Below median
Net margin (TTM)1% · Below median
Operating margin (TTM)−1% · Bottom 25%
Growth and dividend
Revenue growth−25% · Bottom 25%
Dividend yield (TTM)2.4% · Top 25%
Balance sheet
Debt / equity0.01× · Below median
Valuation Multiplesvs Semiconductors median · lower = cheaper
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Cite: Fair Value Calculator (2026). "Shian Yih Electronic Industry Co Ltd Fair Value". https://www.fairvalue-calculator.com/stock/3531
Frequently asked questions
Is Shian Yih Electronic Industry Co Ltd (3531) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of 34.00 TWD versus a price of 21.25 TWD, about +60% upside (undervalued).
What is the fair value of 3531?
Our model-based fair value for Shian Yih Electronic Industry Co Ltd is 34.00 TWD (as of Sep 24, 2026), built from audited fundamentals. The current price: 21.25 TWD.
What is the quality score of 3531?
Shian Yih Electronic Industry Co Ltd has a Quality Score of 64/100. 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 Shian Yih Electronic Industry Co Ltd (3531)?
Our model-based price target is the fair value of 34.00 TWD (as of Sep 24, 2026) from 21 valuation models. Cautious scenario 29.13 TWD, optimistic scenario 34.00 TWD. It is a calculation from audited fundamentals, not an analyst target.
What is the Shian Yih Electronic Industry Co Ltd stock forecast for 2026?
Our models put fair value at 34.00 TWD, about +60% upside versus a price of 21.25 TWD (undervalued). Cautious scenario 29.13 TWD, optimistic scenario 34.00 TWD. The calculation is refreshed regularly with new filings.
What is the revenue of Shian Yih Electronic Industry Co Ltd (3531)?
Shian Yih Electronic Industry Co Ltd reported trailing-twelve-month revenue of about 1.2B TWD (latest available figure, as of Sep 24, 2026).
Does Shian Yih Electronic Industry Co Ltd pay a dividend?
Shian Yih Electronic Industry Co Ltd currently shows a dividend yield of about 2.35% relative to its recent price (as of Sep 24, 2026).
What growth is priced into Shian Yih Electronic Industry Co Ltd (3531)?
For today's price to be fair in a discounted-cash-flow model, Shian Yih Electronic Industry Co Ltd would have to grow free cash flow by -28.9 % per year for five years (discount rate 9.0 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew -5.3 % per year. As of Sep 24, 2026.
What discount rate (WACC) does the fair value of 3531 use?
Our models discount Shian Yih Electronic Industry Co Ltd at 9.0 %: a base by market capitalisation (nano), damped by beta 0.15, 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 Shian Yih Electronic Industry Co Ltd that is -28.9 % per year a year over ten years, using the same discount rate (9.0 %) and the same formula as our fair value.
How much growth has Shian Yih Electronic Industry Co Ltd (3531) delivered so far?
Over the past 5 years revenue at Shian Yih Electronic Industry Co Ltd grew -5.3 % a year. The price currently implies -28.9 % 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 Shian Yih Electronic Industry Co Ltd (3531) growing?
The median revenue growth in the sector is +8.1 % a year. That is the yardstick for the growth priced into Shian Yih Electronic Industry Co Ltd (-28.9 % 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 Shian Yih Electronic Industry Co Ltd (3531)?
The free-cash-flow yield on the price is 8.67 %: that much free cash flow Shian Yih Electronic Industry Co Ltd produces per unit of market value. When it exceeds the discount rate of our models (9.0 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Shian Yih Electronic Industry Co Ltd (3531)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Shian Yih Electronic Industry Co Ltd it is 34.00 TWD per share (as of Sep 24, 2026), against a price of 21.25 TWD. It is the blended result of 21 valuation models (cash flow, earnings, asset, dividend).
Is Shian Yih Electronic Industry Co Ltd stock overvalued or undervalued in 2026?
As of Sep 24, 2026, 3531 trades below its calculated fair value: price 21.25 TWD, fair value 34.00 TWD, a gap of about +60% (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 3531?
No. The price is what the market pays today (21.25 TWD); the fair value is what the company's own numbers justify (34.00 TWD). For Shian Yih Electronic Industry Co Ltd the two are 12.75 TWD per share apart. That gap is exactly why we show both numbers side by side.
How much is Shian Yih Electronic Industry Co Ltd worth?
The market values Shian Yih Electronic Industry Co Ltd at about 1.3B TWD (market capitalisation, as of Sep 24, 2026). Per share that is 21.25 TWD; our models calculate a fair value of 34.00 TWD per share.
What do the bullish and bearish scenarios say about 3531?
Our models span a range for Shian Yih Electronic Industry Co Ltd: cautious scenario 29.13 TWD, base 34.00 TWD, optimistic 34.00 TWD per share (as of Sep 24, 2026, price 21.25 TWD). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 3531?
Shian Yih Electronic Industry Co Ltd trades at a price-to-earnings ratio of 73.3 (as of Sep 24, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of 34.00 TWD is built from several models across several years. Other multiples: P/B 0.7, P/S 1.1, EV/EBITDA 4.0.
How solid is the balance sheet of Shian Yih Electronic Industry Co Ltd (3531)?
Balance-sheet figures for Shian Yih Electronic Industry Co Ltd (as of Sep 24, 2026): return on equity 0.6%, debt of 0.01 per unit of equity. They feed the Quality Score of 64/100, which measures business quality independently of the share price.
How far is 3531 from its 52-week high?
Shian Yih Electronic Industry Co Ltd trades at 21.25 TWD, about 10% below its 52-week high of 23.55 TWD and 6% above the low of 19.97 TWD (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of 34.00 TWD is for.
Which stocks are comparable to Shian Yih Electronic Industry Co Ltd?
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 Shian Yih Electronic Industry Co Ltd stock attractive at the current price?
The data as of Sep 24, 2026: price 21.25 TWD, calculated fair value 34.00 TWD (+60%), Quality Score 64/100, from 21 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 3531 calculated?
We run Shian Yih Electronic Industry Co Ltd through 21 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 34.00 TWD, 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 14.0 % above its aggregate fair value. Shian Yih Electronic Industry Co Ltd currently trades 60 % 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 Shian Yih Electronic Industry Co Ltd (3531)?
The closing price on Sep 24, 2026 was 21.25 TWD. Our model-based fair value is 34.00 TWD, about +60% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Shian Yih Electronic Industry Co Ltd right now?
The price is below even our cautious bear case (29.13 TWD). The market is more pessimistic than our downside scenario. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. Solid quality (64/100) at a price below fair value, the discount is the argument here, not the business quality.
Key figures of Shian Yih Electronic Industry Co Ltd
How large is the market capitalisation of Shian Yih Electronic Industry Co Ltd (3531)?
The market capitalisation of Shian Yih Electronic Industry Co Ltd is 1.3B TWD (≈ $40.9M). 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 Shian Yih Electronic Industry Co Ltd (3531)?
The price-to-sales ratio of Shian Yih Electronic Industry Co Ltd is 1.02 (P/E × margin). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What are the earnings per share of Shian Yih Electronic Industry Co Ltd (3531)?
Earnings per share at Shian Yih Electronic Industry Co Ltd are 0.2900 TWD (price ÷ EPS = P/E 73.3). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Shian Yih Electronic Industry Co Ltd (3531)?
The dividend yield of Shian Yih Electronic Industry Co Ltd is 2.4% (payout 172%). 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 Shian Yih Electronic Industry Co Ltd (3531)?
The net margin of Shian Yih Electronic Industry Co Ltd is 1.4% (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 Shian Yih Electronic Industry Co Ltd (3531)?
The return on equity (ROE) of Shian Yih Electronic Industry Co Ltd is 0.6% (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 Shian Yih Electronic Industry Co Ltd (3531)?
On an EBIT basis the return on assets of Shian Yih Electronic Industry Co Ltd is 2.0% (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 Shian Yih Electronic Industry Co Ltd (3531)?
The operating margin of Shian Yih Electronic Industry Co Ltd is −1.4% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Shian Yih Electronic Industry Co Ltd (3531)?
Revenue at Shian Yih Electronic Industry Co Ltd is growing −25.2% versus a year earlier (3y avg −16.7%). 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 Shian Yih Electronic Industry Co Ltd (3531)?
Earnings per share at Shian Yih Electronic Industry Co Ltd are growing −15.2% versus a year earlier. How much earnings per share grew versus a year earlier.
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