Prosper Engineering Public Company Limited (PROS) fair value: what the stock is really worth
As of Sep 24, 2026: fair value of Prosper Engineering Public Company Limited THB 0.10, price THB 0.17, upside -41.2%, quality 31 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 0.1500 THB – 3.52 THB · fair‑value band 0.0800 THB – 0.1600 THB · the 0.1700 THB price screens above the 0.1000 THB fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 24, 2026.
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Prosper Engineering Public Company Limited, together with its subsidiaries, provides engineering systems, design, contracting, engineering consulting, and system maintenance services in Thailand. It operates through M&E Engineering; and Civil & Structure Engineering segments.
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Prosper Engineering Public Company Limited, together with its subsidiaries, provides engineering systems, design, contracting, engineering consulting, and system maintenance services in Thailand. It operates through M&E Engineering; and Civil & Structure Engineering segments. The company installs electrical, communication, air conditioning, water supply, and fire protection systems. It also operates and installs engineering systems in various types of buildings, including shopping centers, superstores, product distribution centers, mobile telephone network centers, information centers, residential and office buildings, government and public sector buildings, hospitals, and industrial factories. The company's engineering systems portfolio includes high and low voltage, emergency power supply, telephone, computer network and cabling, fire alarm, public address, audio visual, closed-circuit television, master antenna television, access control, burglar alarm, and building automation systems; air conditioning, chilled water cooled, split type air conditioner, VRF air conditioning, precision air conditioning, chiller plant management, and ventilation systems; and plumbing and fire protection systems, such as water supply, waste treatment, drainage, fire protection, clean agent, LPG, and compressed air systems. In addition, it undertakes civil and structural, architectural and interior, and renovation works; and provides maintenance services. Prosper Engineering Public Company Limited was incorporated in 1996 and is headquartered in Bangkok, Thailand.
Stock analysis
Prosper Engineering Public Company Limited (PROS) currently trades at 0.1700 THB, while our model-based Fair Value estimate is 0.1000 THB, implying the stock looks roughly 70.0% overvalued today.
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Valuation
How firm this estimate is: it rests on 1 models at a data quality of 94/100, which puts the evidence level at low.
Scenario range: 0.0800 THB (bear) to 0.1600 THB (bull), the price of 0.1700 THB 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 31/100 (below-average quality), in the Industrials sector.
Weak Growth: Revenue is shrinking: the last year, the last three and the last five years are all negative.
Prosper Engineering Public Company Limited reported revenue of 830M THB in FY2025 versus 1.0B THB in FY2021, a compound −5.3%/yr. Reported net income was −153M THB in FY2025.
Key figures
Market cap 93.8M THB (≈ $2.8M) · P/S ratio 0.16 · EPS (TTM) −0.2800 THB · Net margin −18.4% · Return on equity −99.2% · Return on assets (EBIT) −9.2% · Operating margin 3.3% · Revenue (TTM) 618M THB.
Competitive moat
Our AI-assisted moat analysis scores the competitive advantage at 22 out of 100 (medium confidence).
What moves the price
The share trades about 72% below its 52-week high and 13% above its 52-week low, currently below its 200-day average.
For context, the median of 10 Industrials peers we cover trades at −31% fair-value upside, at −41%, PROS screens richer than that median.
Fair Value models
Bear 0.0800 THBFair Value 0.1000 THBBull 0.1600 THB
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.0/100
Revenue is shrinking: the last year, the last three and the last five years are all negative.
Revenue growth 1 year
−44.5%
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.
−15.0%
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.
−2.5%
Start year 2020 (pandemic)
Revenue growth 9 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.
−1.0%
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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.
7.1% (2020) → −15.2% (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
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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.Engineering & Construction · 839 stocks
Beats the industry median on 1/7 measures
Overall it trails its industry peers.
Valuation
Quality Score29 · Bottom 25%
Fair Value upside−38% · Below median
Profitability
Return on assets−9% · Bottom 25%
Net margin (TTM)−25% · Bottom 25%
Operating margin (TTM)3% · Below median
Growth and dividend
Revenue growth−65% · Bottom 25%
Balance sheet
Debt / equity0.08× · Below median
Strength profile in five axes (Snowflake)
This stockSector peers
VALUE (fair-value potential)0· sector 29
FUTURE (revenue growth)0· sector 11
PAST (return on equity)0· sector 29
HEALTH (low debt)96· sector 94
DIVIDEND (yield)0· sector 41
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). "Prosper Engineering Public Company Limited Fair Value". https://www.fairvalue-calculator.com/stock/PROS
Frequently asked questions
Is Prosper Engineering Public Company Limited (PROS) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of 0.1000 THB versus a price of 0.1700 THB, about −41% upside (overvalued).
What is the fair value of PROS?
Our model-based fair value for Prosper Engineering Public Company Limited is 0.1000 THB (as of Sep 24, 2026), built from audited fundamentals. The current price: 0.1700 THB.
What is the quality score of PROS?
Prosper Engineering Public Company Limited has a Quality Score of 31/100. 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 Prosper Engineering Public Company Limited (PROS)?
Our model-based price target is the fair value of 0.1000 THB (as of Sep 24, 2026) from 1 valuation models. Cautious scenario 0.0800 THB, optimistic scenario 0.1600 THB. It is a calculation from audited fundamentals, not an analyst target.
What is the Prosper Engineering Public Company Limited stock forecast for 2026?
Our models put fair value at 0.1000 THB, about −41% upside versus a price of 0.1700 THB (overvalued). Cautious scenario 0.0800 THB, optimistic scenario 0.1600 THB. The calculation is refreshed regularly with new filings.
What is the revenue of Prosper Engineering Public Company Limited (PROS)?
Prosper Engineering Public Company Limited reported trailing-twelve-month revenue of about 618M THB (latest available figure, as of Sep 24, 2026).
What is the intrinsic value of Prosper Engineering Public Company Limited (PROS)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Prosper Engineering Public Company Limited it is 0.1000 THB per share (as of Sep 24, 2026), against a price of 0.1700 THB. It is the blended result of 1 valuation models (cash flow, earnings, asset, dividend).
Is Prosper Engineering Public Company Limited stock overvalued or undervalued in 2026?
As of Sep 24, 2026, PROS trades above its calculated fair value: price 0.1700 THB, fair value 0.1000 THB, a gap of about −41% (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 PROS?
No. The price is what the market pays today (0.1700 THB); the fair value is what the company's own numbers justify (0.1000 THB). For Prosper Engineering Public Company Limited the two are 0.0700 THB per share apart. That gap is exactly why we show both numbers side by side.
How much is Prosper Engineering Public Company Limited worth?
The market values Prosper Engineering Public Company Limited at about 93.8M THB (market capitalisation, as of Sep 24, 2026). Per share that is 0.1700 THB; our models calculate a fair value of 0.1000 THB per share.
What do the bullish and bearish scenarios say about PROS?
Our models span a range for Prosper Engineering Public Company Limited: cautious scenario 0.0800 THB, base 0.1000 THB, optimistic 0.1600 THB per share (as of Sep 24, 2026, price 0.1700 THB). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Prosper Engineering Public Company Limited (PROS)?
Balance-sheet figures for Prosper Engineering Public Company Limited (as of Sep 24, 2026): return on equity −99.2%, debt of 0.08 per unit of equity. They feed the Quality Score of 31/100, which measures business quality independently of the share price.
How far is PROS from its 52-week high?
Prosper Engineering Public Company Limited trades at 0.1700 THB, about 72% below its 52-week high of 0.6000 THB and 13% above the low of 0.1500 THB (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of 0.1000 THB is for.
Which stocks are comparable to Prosper Engineering Public Company Limited?
From the same area (Industrials) we also value Quanta Services, Inc, Vinci SA, Comfort Systems USA, Inc, Larsen & Toubro Limited, 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 Prosper Engineering Public Company Limited stock attractive at the current price?
The data as of Sep 24, 2026: price 0.1700 THB, calculated fair value 0.1000 THB (−41%), Quality Score 31/100, 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 PROS calculated?
We run Prosper Engineering Public Company Limited through 1 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 0.1000 THB, 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 13.2 % above its aggregate fair value. Prosper Engineering Public Company Limited 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 Prosper Engineering Public Company Limited (PROS)?
The closing price on Sep 24, 2026 was 0.1700 THB. Our model-based fair value is 0.1000 THB, about −41% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Prosper Engineering Public Company Limited right now?
The price sits above even our optimistic bull case (0.1600 THB). The favourable scenario is already priced in. Weak quality (31/100) 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 (0.0800 THB to 0.1600 THB) leaves room in how you read the outcome.
Key figures of Prosper Engineering Public Company Limited
How large is the market capitalisation of Prosper Engineering Public Company Limited (PROS)?
The market capitalisation of Prosper Engineering Public Company Limited is 93.8M THB (≈ $2.8M). 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 Prosper Engineering Public Company Limited (PROS)?
The price-to-sales ratio of Prosper Engineering Public Company Limited is 0.16 (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 Prosper Engineering Public Company Limited (PROS)?
Earnings per share at Prosper Engineering Public Company Limited are −0.2800 THB. Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Prosper Engineering Public Company Limited (PROS)?
The net margin of Prosper Engineering Public Company Limited is −18.4% (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 Prosper Engineering Public Company Limited (PROS)?
The return on equity (ROE) of Prosper Engineering Public Company Limited is −99.2% (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 Prosper Engineering Public Company Limited (PROS)?
On an EBIT basis the return on assets of Prosper Engineering Public Company Limited is −9.2% (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 Prosper Engineering Public Company Limited (PROS)?
The operating margin of Prosper Engineering Public Company Limited is 3.3% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Prosper Engineering Public Company Limited (PROS)?
Revenue at Prosper Engineering Public Company Limited is growing −65.1% versus a year earlier (3y avg −15.0%). 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 Prosper Engineering Public Company Limited (PROS)?
Earnings per share at Prosper Engineering Public Company Limited are growing −65.5% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Prosper Engineering Public Company Limited (PROS) generate?
The free cash flow of Prosper Engineering Public Company Limited is −6.5M THB (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 Prosper Engineering Public Company Limited (PROS) carry?
The net debt of Prosper Engineering Public Company Limited is 179M THB (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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