Sunflex Tech Co Ltd (3390) fair value: what the stock is really worth
As of Nov 6, 2026: fair value (intrinsic value) of Sunflex Tech Co Ltd stock TWD 7.32, price TWD 18.25, that is 59.9% below the price, quality 33 out of 100. Rating: strongly overvalued. Calculated from audited financials with one of our 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 9, 2026.
How to read this chart
60‑month range 15.64 TWD – 38.50 TWD · fair‑value band 4.83 TWD – 9.15 TWD · the 18.25 TWD price screens above the 7.32 TWD fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 9, 2026.
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Sunflex Tech Co., Ltd. engages in the manufacture and sale of electronic components in Taiwan, rest of Asia, the Americas, and Europe. It offers flexible printed circuit boards (FPCB). The company is also involved in the general investment activities.
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Its products are used in consumer electronics, automotive, industrial control, medical, and other industries applications. Sunflex Tech Co., Ltd. was incorporated in 1998 and is headquartered in Taoyuan City, Taiwan.
Stock analysis
Sunflex Tech Co Ltd (3390) currently trades at 18.25 TWD, while our model-based Fair Value estimate is 7.32 TWD, 60% 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 95/100, which puts the data coverage at low.
Scenario range: 4.83 TWD (bear) to 9.15 TWD (bull), the price of 18.25 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 33/100 (below-average quality), in the Technology sector.
Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Sunflex Tech Co Ltd reported revenue of 792M TWD in FY2025 versus 899M TWD in FY2021, a compound −3.1%/yr. Reported net income was −42.2M TWD in FY2025.
Key figures
Market cap 1.5B TWD (≈ $45.3M) Micro · P/S ratio 1.97 · EPS (TTM) −0.2500 TWD · Dividend yield 1.1% · Net margin −2.3% · Return on equity −1.5% · Return on assets (EBIT) 0.4% (5-year average) · Operating margin −2.9%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 11 out of 100 (low confidence).
What moves the price
The share trades about 39% below its 52-week high and at its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −7% fair-value upside, at −60%, 3390 screens richer than that median.
Fair Value models
Bear4.83 TWDFair Value 7.32 TWDBull9.15 TWD
Price 18.25 TWD · Downside -59.9%
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)5.68 TWD8.61 TWD10.76 TWD54
All 1 models by family
Asset-Based
NCAV (Graham)5.68 TWD8.61 TWD10.76 TWD54
The fair value above starts from this blend and is adjusted for dilution from new shares.
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.8/100
Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Revenue growth 1 year
−7.4%
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.
−7.3%
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.
+3.8%
Start year 2020 (pandemic)
Revenue growth 8 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.
−2.9%
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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.
−17.3% (2020) → −4.1% (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
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.Electronic Components · 653 stocks
Beats the industry median on 3/10 measures
Overall it trails its industry peers.
Valuation
Quality Score33 · Bottom 25%
Fair Value upside−59.9% · Below median
Profitability
Return on assets−2.4% · Bottom 25%
Net margin (12 months)−2.3% · Bottom 25%
Operating margin (12 months)−2.9% · Bottom 25%
Growth and dividend
Revenue growth (quarter YoY)50.9% · Top 25%
Dividend yield (12 months)1.1% · Below median
Balance sheet
Debt / equity0.14× · Above median
Valuation Multiplesvs Electronic Components median · lower = cheaper
P/B1.06× · Cheapest 25%
P/S (12 months)1.65× · Cheaper than median
Strength profile in five axes (Snowflake)
This stockSector peers
VALUE (fair-value potential)0· sector 0
FUTURE (revenue growth)100· sector 70
PAST (return on equity)0· sector 28
HEALTH (low debt)93· sector 95
DIVIDEND (yield)22· sector 27
VALUE 0: the price sits above our fair-value range.
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). "Sunflex Tech Co Ltd Fair Value". https://www.fairvalue-calculator.com/stock/3390
Frequently asked questions
Is Sunflex Tech Co Ltd (3390) overvalued or undervalued?
As of Nov 9, 2026, our model estimates a fair value of 7.32 TWD versus a price of 18.25 TWD, about 60% lower (overvalued).
What is the fair value of 3390?
Our model-based fair value for Sunflex Tech Co Ltd is 7.32 TWD (as of Nov 9, 2026), built from audited fundamentals. The current price: 18.25 TWD.
What is the quality score of 3390?
Sunflex Tech Co Ltd has a Quality Score of 33/100. 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 Sunflex Tech Co Ltd (3390)?
Our model-based price target is the fair value of 7.32 TWD (as of Nov 9, 2026) from 1 valuation models. Cautious scenario 4.83 TWD, optimistic scenario 9.15 TWD. It is a calculation from audited fundamentals, not an analyst target.
What is the Sunflex Tech Co Ltd stock forecast for 2026?
Our models put fair value at 7.32 TWD, about 60% lower versus a price of 18.25 TWD (overvalued). Cautious scenario 4.83 TWD, optimistic scenario 9.15 TWD. The calculation is refreshed regularly with new filings.
What is the revenue of Sunflex Tech Co Ltd (3390)?
Sunflex Tech Co Ltd reported trailing-twelve-month revenue of about 901M TWD (latest available figure, as of Nov 9, 2026).
Does Sunflex Tech Co Ltd pay a dividend?
Sunflex Tech Co Ltd currently shows a dividend yield of 1.10% relative to its recent price (as of Nov 9, 2026).
How much is the dividend of Sunflex Tech Co Ltd (3390) and when is the ex-dividend date?
Sunflex Tech Co Ltd pays a dividend of 0.2 TWD per share a year, a dividend yield of 1.1%. The last ex-dividend date was Aug 11, 2026. A dividend has been paid every year since at least 2008. Our assessment: Watch coverage. The dividend isn’t fully covered by free cash flow or earnings, part of it is funded from reserves or debt. Fine for now, but worth watching: if it stays uncovered, the dividend could be cut.
What is the intrinsic value of Sunflex Tech Co Ltd (3390)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Sunflex Tech Co Ltd it is 7.32 TWD per share (as of Nov 9, 2026), against a price of 18.25 TWD. It is the blended result of 1 valuation models in 1 family (Asset-Based).
Is Sunflex Tech Co Ltd stock overvalued or undervalued in 2026?
As of Nov 9, 2026, 3390 trades above its calculated fair value: price 18.25 TWD, fair value 7.32 TWD, a gap of about −60% (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 3390?
No. The price is what the market pays today (18.25 TWD); the fair value is what the company's own numbers justify (7.32 TWD). For Sunflex Tech Co Ltd the two are 10.93 TWD per share apart. That gap is exactly why we show both numbers side by side.
How much is Sunflex Tech Co Ltd worth?
The market values Sunflex Tech Co Ltd at about 1.5B TWD (market capitalisation, as of Nov 9, 2026). Per share that is 18.25 TWD; our models calculate a fair value of 7.32 TWD per share.
What do the bullish and bearish scenarios say about 3390?
Our models span a range for Sunflex Tech Co Ltd: cautious scenario 4.83 TWD, base 7.32 TWD, optimistic 9.15 TWD per share (as of Nov 9, 2026, price 18.25 TWD). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Sunflex Tech Co Ltd (3390)?
Balance-sheet figures for Sunflex Tech Co Ltd (as of Nov 9, 2026): return on equity −1.5%, debt of 0.14 per unit of equity. They feed the Quality Score of 33/100, which measures business quality independently of the share price.
How far is 3390 from its 52-week high?
Sunflex Tech Co Ltd trades at 18.25 TWD, about 39% below its 52-week high of 29.95 TWD and at the low of 18.25 TWD (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 7.32 TWD is for.
Which stocks are comparable to Sunflex Tech Co Ltd?
From the same area (Technology) we also value Amphenol Corporation, Hon Hai Precision Industry Co, Corning Incorporated, Delta Electronics, 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 Sunflex Tech Co Ltd stock attractive at the current price?
The data as of Nov 9, 2026: price 18.25 TWD, calculated fair value 7.32 TWD (−60%), Quality Score 33/100, 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 3390 calculated?
We run Sunflex Tech Co Ltd through 1 models from 1 family: Asset-Based. Every model gets the same audited fundamentals; the fair value of 7.32 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 13.3% above its aggregate fair value. Sunflex Tech 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 Sunflex Tech Co Ltd (3390)?
The closing price on Nov 6, 2026 was 18.25 TWD. Our model-based fair value is 7.32 TWD, about 60% lower (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Sunflex Tech Co Ltd right now?
The price sits above even our optimistic bull case (9.15 TWD). The favourable scenario is already priced in. Weak quality (33/100) 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 (4.83 TWD to 9.15 TWD) leaves room in how you read the outcome.
Key figures of Sunflex Tech Co Ltd
How large is the market capitalisation of Sunflex Tech Co Ltd (3390)?
The market capitalisation of Sunflex Tech Co Ltd is 1.5B TWD (≈ $45.3M). 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 Sunflex Tech Co Ltd (3390)?
The price-to-sales ratio of Sunflex Tech Co Ltd is 1.97 (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 Sunflex Tech Co Ltd (3390)?
Earnings per share at Sunflex Tech Co Ltd are −0.2500 TWD. Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Sunflex Tech Co Ltd (3390)?
The dividend yield of Sunflex Tech Co Ltd is 1.1%. 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 Sunflex Tech Co Ltd (3390)?
The net margin of Sunflex Tech Co Ltd is −2.3% (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 Sunflex Tech Co Ltd (3390)?
The return on equity (ROE) of Sunflex Tech Co Ltd is −1.5% (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 Sunflex Tech Co Ltd (3390)?
On an EBIT basis the return on assets of Sunflex Tech Co Ltd is 0.4% (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 Sunflex Tech Co Ltd (3390)?
The operating margin of Sunflex Tech Co Ltd is −2.9% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Sunflex Tech Co Ltd (3390)?
Revenue at Sunflex Tech Co Ltd is growing +50.9% versus a year earlier (3y avg −7.3%). 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 Sunflex Tech Co Ltd (3390)?
Earnings per share at Sunflex Tech Co Ltd are growing −32.6% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Sunflex Tech Co Ltd (3390) generate?
The free cash flow of Sunflex Tech Co Ltd is −472M 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 Sunflex Tech Co Ltd (3390) carry?
The net debt of Sunflex Tech Co Ltd is 312M TWD (fiscal year 2022). 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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Thin data
Nov 9, 2026