Grand Plastic Technology (3131) fair value: what the stock is really worth
As of Sep 23, 2026: fair value of Grand Plastic Technology TWD 2,602, price TWD 2,365, upside +10.0%, quality 70 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 165.36 TWD – 3,905 TWD · fair‑value band 1,487 TWD – 4,276 TWD · the 2,365 TWD price screens below the 2,602 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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Grand Process Technology Corporation manufactures and sells semiconductor equipment in Taiwan. The company offers single wafer spin processor, batch type wet bench system, and combo system for advanced IC packaging, IC front end of line, and optoelectronics applications.
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Grand Process Technology Corporation manufactures and sells semiconductor equipment in Taiwan. The company offers single wafer spin processor, batch type wet bench system, and combo system for advanced IC packaging, IC front end of line, and optoelectronics applications. Grand Process Technology Corporation was founded in 1993 and is headquartered in Hsinchu City, Taiwan.
Stock analysis
Grand Plastic Technology (3131) currently trades at 2,365 TWD, while our model-based Fair Value estimate is 2,602 TWD, implying the stock looks roughly 9.1% undervalued today.
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Valuation
Bull case: the DCF Models group reads highest at a median of 1,565 TWD per share, and 0 of the 24 models we run sit above the 2,365 TWD price.
Bear case: the Economic Profit group reads lowest at 429.01 TWD, and 24 of the 24 models stay below the price. Evidence for this calculation is high.
Scenario range: 1,487 TWD (bear) to 4,276 TWD (bull), the price of 2,365 TWD sits inside 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 70/100 (solid quality), in the Technology sector.
Healthy Growth: Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Grand Plastic Technology reported revenue of 6.5B TWD in FY2025 versus 3.7B TWD in FY2021, a compound +15.5%/yr. Reported net income was 1.3B TWD in FY2025, compounding +18.7%/yr from FY2021.
Key figures
Market cap 91.5B TWD (≈ $2.9B) · P/E ratio 53.9 · P/S ratio 11.0 · EPS (TTM) 43.91 TWD · Dividend yield 1.9% · Net margin 20.4% · Return on equity 37.6% · Return on assets (EBIT) 11.0%.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 50 out of 100 (low confidence).
What moves the price
The share trades about 39% below its 52-week high and 77% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Technology peers we cover trades at −34% fair-value upside, at 10%, 3131 screens cheaper than that median.
Fair Value models
Bear 1,487 TWDFair Value 2,602 TWDBull 4,276 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.100/100
Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Revenue growth 1 year
+59.9%
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.
+20.5%
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.
+21.2%
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.
+15.1%
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’25
What shareholders gained per year (last 5 years), in TWD (mathematically smoothed) ⓘ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. Smoothed = median of all growth paths between the years of the window (trend line on the logarithm of earnings per share): a single extreme year cannot distort the rate. The reported figure stays in the tooltip. 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.
+22.0%
Earnings growth per share plus dividend.
Earnings per share, growth per year+20.1%
Dividend (yield on the price)1.9%
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.22% → 25%
2025 sits 80% above its own trend. The rate follows the median trend of the last 5 years, not that single year.
Growth Forecast
Little optimism in the price
The price assumes more growth than the company has delivered so far and less than analysts expect.
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).
+24.9%
Yearly growth needed for the next five years to justify today's price.
What forecasts expect ⓘAnalysts publish sales forecasts for the next two fiscal years. For the years after that, growth slows evenly to 2 % a year by year ten (2 % is the long-run rate our models use). Projected years are marked as such.
+39.9%
Yearly sales growth analysts expect, extended to five years.
After inflation (Taiwan: IMF forecast 1.6% a year to 2030, 1.5% from 2016 to 2025) that is about +23.0% a year for the price and +37.7% for the forecasts.
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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.Semiconductor Equipment & Materials · 217 stocks
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Cite: Fair Value Calculator (2026). "Grand Plastic Technology Fair Value". https://www.fairvalue-calculator.com/stock/3131
Frequently asked questions
Is Grand Plastic Technology (3131) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of 2,602 TWD versus a price of 2,365 TWD, about +10% upside (undervalued).
What is the fair value of 3131?
Our model-based fair value for Grand Plastic Technology is 2,602 TWD (as of Sep 24, 2026), built from audited fundamentals. The current price: 2,365 TWD.
What is the quality score of 3131?
Grand Plastic Technology has a Quality Score of 70/100. 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 Grand Plastic Technology (3131)?
Our model-based price target is the fair value of 2,602 TWD (as of Sep 24, 2026) from 24 valuation models. Cautious scenario 1,487 TWD, optimistic scenario 4,276 TWD. It is a calculation from audited fundamentals, not an analyst target.
What is the Grand Plastic Technology stock forecast for 2026?
Our models put fair value at 2,602 TWD, about +10% upside versus a price of 2,365 TWD (undervalued). Cautious scenario 1,487 TWD, optimistic scenario 4,276 TWD. The calculation is refreshed regularly with new filings.
What is the revenue of Grand Plastic Technology (3131)?
Grand Plastic Technology reported trailing-twelve-month revenue of about 6.9B TWD (latest available figure, as of Sep 24, 2026).
Does Grand Plastic Technology pay a dividend?
Grand Plastic Technology currently shows a dividend yield of about 1.95% relative to its recent price (as of Sep 24, 2026).
What growth is priced into Grand Plastic Technology (3131)?
For today's price to be fair in a discounted-cash-flow model, Grand Plastic Technology would have to grow free cash flow by +24.9 % per year for five years (discount rate 10.2 %, then slowing evenly to 2 % perpetual growth by year ten). Over the last 5 years revenue grew +21.2 % per year. As of Sep 24, 2026.
What discount rate (WACC) does the fair value of 3131 use?
Our models discount Grand Plastic Technology at 10.2 %: a base by market capitalisation (mid), damped by beta 0.98, 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 Grand Plastic Technology that is +24.9 % per year a year over ten years, using the same discount rate (10.2 %) and the same formula as our fair value.
How much growth has Grand Plastic Technology (3131) delivered so far?
Over the past 5 years revenue at Grand Plastic Technology grew +21.2 % a year. The price currently implies +24.9 % 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 Grand Plastic Technology (3131) growing?
The median revenue growth in the sector is +8.2 % a year. That is the yardstick for the growth priced into Grand Plastic Technology (+24.9 % 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 Grand Plastic Technology (3131)?
The free-cash-flow yield on the price is 2.42 %: that much free cash flow Grand Plastic Technology produces per unit of market value. When it exceeds the discount rate of our models (10.2 %), the business already earns more than its cost of capital demands, and the price needs little additional growth.
What is the intrinsic value of Grand Plastic Technology (3131)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Grand Plastic Technology it is 2,602 TWD per share (as of Sep 24, 2026), against a price of 2,365 TWD. It is the blended result of 24 valuation models (cash flow, earnings, asset, dividend).
Is Grand Plastic Technology stock overvalued or undervalued in 2026?
As of Sep 24, 2026, 3131 trades below its calculated fair value: price 2,365 TWD, fair value 2,602 TWD, a gap of about +10% (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 3131?
No. The price is what the market pays today (2,365 TWD); the fair value is what the company's own numbers justify (2,602 TWD). For Grand Plastic Technology the two are 236.50 TWD per share apart. That gap is exactly why we show both numbers side by side.
How much is Grand Plastic Technology worth?
The market values Grand Plastic Technology at about 91.5B TWD (market capitalisation, as of Sep 24, 2026). Per share that is 2,365 TWD; our models calculate a fair value of 2,602 TWD per share.
What do the bullish and bearish scenarios say about 3131?
Our models span a range for Grand Plastic Technology: cautious scenario 1,487 TWD, base 2,602 TWD, optimistic 4,276 TWD per share (as of Sep 24, 2026, price 2,365 TWD). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 3131?
Grand Plastic Technology trades at a price-to-earnings ratio of 53.9 (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 2,602 TWD is built from several models across several years. Other multiples: P/B 19.3, P/S 13.3, EV/EBITDA 53.9.
How solid is the balance sheet of Grand Plastic Technology (3131)?
Balance-sheet figures for Grand Plastic Technology (as of Sep 24, 2026): return on equity 37.6%, debt of 0.58 per unit of equity. They feed the Quality Score of 70/100, which measures business quality independently of the share price.
How far is 3131 from its 52-week high?
Grand Plastic Technology trades at 2,365 TWD, about 39% below its 52-week high of 3,905 TWD and 77% above the low of 1,335 TWD (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of 2,602 TWD is for.
Which stocks are comparable to Grand Plastic Technology?
From the same area (Technology) we also value ASML Holding, Applied Materials, Inc, Lam Research Corporation, KLA Corporation, 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 Grand Plastic Technology stock attractive at the current price?
The data as of Sep 24, 2026: price 2,365 TWD, calculated fair value 2,602 TWD (+10%), Quality Score 70/100, from 24 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 3131 calculated?
We run Grand Plastic Technology through 24 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 2,602 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 14.1 % above its aggregate fair value. Grand Plastic Technology currently trades 10 % 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 Grand Plastic Technology (3131)?
The closing price on Sep 23, 2026 was 2,365 TWD. Our model-based fair value is 2,602 TWD, about +10% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Grand Plastic Technology right now?
The model range is unusually wide (1,487 TWD to 4,276 TWD). The outcome hinges heavily on assumptions, so read the point estimate with caution. The price sits in the lower half of our model range, the side with the larger margin of safety. The data supports the verdict: every model runs on fully documented inputs.
Key figures of Grand Plastic Technology
How large is the market capitalisation of Grand Plastic Technology (3131)?
The market capitalisation of Grand Plastic Technology is 91.5B TWD (≈ $2.9B). 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 Grand Plastic Technology (3131)?
The price-to-sales ratio of Grand Plastic Technology is 11.0 (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 Grand Plastic Technology (3131)?
Earnings per share at Grand Plastic Technology are 43.91 TWD (price ÷ EPS = P/E 53.9). Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Grand Plastic Technology (3131)?
The dividend yield of Grand Plastic Technology is 1.9% (payout 105%). 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 Grand Plastic Technology (3131)?
The net margin of Grand Plastic Technology is 20.4% (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 Grand Plastic Technology (3131)?
The return on equity (ROE) of Grand Plastic Technology is 37.6% (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 Grand Plastic Technology (3131)?
On an EBIT basis the return on assets of Grand Plastic Technology is 11.0% (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 Grand Plastic Technology (3131)?
The operating margin of Grand Plastic Technology is 13.2% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Grand Plastic Technology (3131)?
Revenue at Grand Plastic Technology is growing +28.7% versus a year earlier (3y avg +20.5%). 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 Grand Plastic Technology (3131)?
Earnings per share at Grand Plastic Technology are growing +80.2% versus a year earlier. How much earnings per share grew versus a year earlier.
How much net debt does Grand Plastic Technology (3131) carry?
The net debt of Grand Plastic Technology is 418M TWD (fiscal year 2025, ≈ 0.3 yrs of FCF). 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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