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Woosu AMS Co.Ltd (066590) fair value: what the stock is really worth

As of Nov 6, 2026: fair value (intrinsic value) of Woosu AMS Co.Ltd stock KRW 3,720, price KRW 2,325, upside +60.0%, quality 38 out of 100. Rating: strongly undervalued. Calculated from audited financials with 2 of our 26 valuation models and 37 quality factors, updated daily.

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Consumer Cyclical KR · ISIN KR7066590001

WA Woosu AMS Co.Ltd logo Thin data Nov 9, 2026

Woosu AMS Co.Ltd

066590 · KQ
Cheap, value-trap risk

The stock costs 38% less than our calculation considers fair.

Fair value 3,720 KRW · Strongly undervalued
Low debt
Generates free cash flow over the last twelve months
Expensive Growth (revenue 5y +10.0 %/yr in KRW)
Mixed vs. peers (5/11)
Quality 38/100
Loss-making · -0.2% net margin (TTM)
Narrow moat 14/100 · thin data
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

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

6,380 KRW 1,825 KRW Fair Value 3,720 KRW Jun 2021 Nov 2026

White line = price, green steps = our fair value per fiscal year. As of Nov 9, 2026.

How to read this chart

60‑month range 1,825 KRW – 6,380 KRW · fair‑value band 1,623 KRW – 5,817 KRW · the 2,325 KRW price screens below the 3,720 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). As of Nov 9, 2026.

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Company profile

Smotronic Co., Ltd. manufactures and sells automobile components in South Korea and internationally. The company offers electrical vehicles products, such as micro E/V, micro EV pickup truck and motor, inverter, PDU, differential case, and rotor shaft.

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It also provides transmission parts, including differential assembly, rear cover assy, T/M bracket, hub 4 and OD and 35R clutch, center support assy, carrier plate, and flange companion; and interior/exterior/electronic accessories comprising rear lower brake reverse lamp, rear central partial turn signal, rear center corner RR reflective lamp, rear centre top brake light, and dashboard.

In addition, the company engine products, such as balance shaft, air compressor, engine bracket, manifold, cap-camshaft, adapter ASM WAT OTLT, and rocker arm shaft assy. The company was formerly known as Woosu AMS Co.,Ltd. and changed its name to Smotronic Co., Ltd. in March 2026.

Smotronic Co., Ltd. was founded in 1983 and is headquartered in Changwon-Si, South Korea.

Stock analysis

Woosu AMS Co.Ltd (066590) currently trades at 2,325 KRW, while our model-based Fair Value estimate is 3,720 KRW, implying the stock looks roughly 38% undervalued today.

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Valuation

How firm this estimate is: it rests on 2 models at a data quality of 95/100, which puts the data coverage at low.

Scenario range: 1,623 KRW (bear) to 5,817 KRW (bull), the price of 2,325 KRW 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 38/100 (below-average quality), in the Consumer Cyclical sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

Woosu AMS Co.Ltd reported revenue of 369B KRW in FY2025 versus 310B KRW in FY2021, a compound +4.4%/yr. Reported net income was −10.6B KRW in FY2025.

Key figures

Market cap 89.9B KRW (≈ $66.5M) Micro · P/S ratio 0.21 · EPS (TTM) −18.81 KRW · Net margin −0.2% · Return on equity −1.1% · Return on assets (EBIT) 0.9% (5-year average) · Operating margin 2.9% · Revenue (TTM) 387B KRW.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 14 out of 100 (low confidence).

What moves the price

The share trades about 40% below its 52-week high and 27% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Consumer Cyclical peers we cover trades at −23% fair-value upside, at 60%, 066590 screens cheaper than that median.

Fair Value models

Bear 1,623 KRW Fair Value 3,720 KRW Bull 5,817 KRW
Price 2,325 KRW · Upside +60.0%
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
EV/EBITDA 910.91 KRW 2,088 KRW 3,266 KRW 63
NCAV (Graham) 1,016 KRW 1,361 KRW 2,032 KRW 54
All 2 models by family
Multiples
EV/EBITDA 910.91 KRW 2,088 KRW 3,266 KRW 63
Asset-Based
NCAV (Graham) 1,016 KRW 1,361 KRW 2,032 KRW 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 38/100

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

Profitability 24
How much profit the company makes from its sales and capital
Quality Growth 31
Are margins and returns getting better?
Cashflow 7
Do the profits arrive as real cash?
Financial strength 21
Debt, balance sheet and risk of trouble
Investment 85
Does it invest with discipline instead of growing at any price?
Low Volatility 33
How calm the share price moves, does not count
Price momentum 24
Price momentum of the last 3 to 12 months, does not count
Near the 52-week high 17
Distance to the 52-week high, does not count
New shares 83
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. 35/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+4.1%
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.
+1.1%
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.
+10.0%
Start year 2020 (pandemic). Over 10 years: +4.8% 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.
+8.1%
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.
−2.3% (2020) → 0.1% (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
not computed

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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.Auto Parts · 655 stocks

Beats the industry median on 5/10 measures
A mixed picture versus its industry peers.
Valuation
Quality Score 38 · Bottom 25%
Fair Value upside +60.0% · Top 25%
Profitability
Return on assets −4.0% · Bottom 25%
Net margin (12 months) −0.2% · Bottom 25%
Operating margin (12 months) 2.9% · Below median
Growth and dividend
Revenue growth (quarter YoY) 12.6% · Above median
Balance sheet
Debt / equity 0.33× · Highest 25%

Valuation Multiplesvs Auto Parts median · lower = cheaper

P/B 1.14× · Cheaper than median
P/S (12 months) 0.23× · Cheapest 25%
EV/EBITDA 4.6× · Cheapest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)100 · sector 33
FUTURE (revenue growth)63 · sector 34
PAST (return on equity)0 · sector 31
HEALTH (low debt)84 · sector 95
DIVIDEND (yield)0 · sector 39

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 Auto Parts stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Magna International Inc MGA $61.86 $98.98 +60% vs 066590
Hyundai Mobis Co 012330 349,000 KRW 534,994 KRW +53% vs 066590
Genuine Parts Company GPC $122.80 $115.96 −6% vs 066590
Knorr-Bremse AG KBX €94.45 €72.88 −23% vs 066590
AutoZone, Inc AZO $3,216 $2,468 −23% vs 066590
Fuyao Glass Industry Group 600660 ¥55.92 ¥40.74 −27% vs 066590
Ningbo Tuopu Group 601689 ¥44.71 ¥32.24 −28% vs 066590
Samvardhana Motherson International Limited MOTHERSON ₹158.55 ₹96.06 −39% vs 066590
O'Reilly Automotive, Inc ORLY $89.89 $48.66 −46% vs 066590
Bosch Limited BOSCHLTD ₹50,700 ₹25,168 −50% vs 066590

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Woosu AMS Co.Ltd: fair value per Fair Value Calculator

Cite: Fair Value Calculator (2026). "Woosu AMS Co.Ltd Fair Value". https://www.fairvalue-calculator.com/stock/066590

Frequently asked questions

Is Woosu AMS Co.Ltd (066590) overvalued or undervalued?
As of Nov 9, 2026, our model estimates a fair value of 3,720 KRW versus a price of 2,325 KRW, about +60% upside (undervalued).
What is the fair value of 066590?
Our model-based fair value for Woosu AMS Co.Ltd is 3,720 KRW (as of Nov 9, 2026), built from audited fundamentals. The current price: 2,325 KRW.
What is the quality score of 066590?
Woosu AMS Co.Ltd has a Quality Score of 38/100. 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 Woosu AMS Co.Ltd (066590)?
Our model-based price target is the fair value of 3,720 KRW (as of Nov 9, 2026) from 2 valuation models. Cautious scenario 1,623 KRW, optimistic scenario 5,817 KRW. It is a calculation from audited fundamentals, not an analyst target.
What is the Woosu AMS Co.Ltd stock forecast for 2026?
Our models put fair value at 3,720 KRW, about +60% upside versus a price of 2,325 KRW (undervalued). Cautious scenario 1,623 KRW, optimistic scenario 5,817 KRW. The calculation is refreshed regularly with new filings.
What is the revenue of Woosu AMS Co.Ltd (066590)?
Woosu AMS Co.Ltd reported trailing-twelve-month revenue of about 387B KRW (latest available figure, as of Nov 9, 2026).
What is the intrinsic value of Woosu AMS Co.Ltd (066590)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Woosu AMS Co.Ltd it is 3,720 KRW per share (as of Nov 9, 2026), against a price of 2,325 KRW. It is the blended result of 2 valuation models in 2 families (Multiples, Asset-Based).
Is Woosu AMS Co.Ltd stock overvalued or undervalued in 2026?
As of Nov 9, 2026, 066590 trades below its calculated fair value: price 2,325 KRW, fair value 3,720 KRW, 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 066590?
No. The price is what the market pays today (2,325 KRW); the fair value is what the company's own numbers justify (3,720 KRW). For Woosu AMS Co.Ltd the two are 1,395 KRW per share apart. That gap is exactly why we show both numbers side by side.
How much is Woosu AMS Co.Ltd worth?
The market values Woosu AMS Co.Ltd at about 89.9B KRW (market capitalisation, as of Nov 9, 2026). Per share that is 2,325 KRW; our models calculate a fair value of 3,720 KRW per share.
What do the bullish and bearish scenarios say about 066590?
Our models span a range for Woosu AMS Co.Ltd: cautious scenario 1,623 KRW, base 3,720 KRW, optimistic 5,817 KRW per share (as of Nov 9, 2026, price 2,325 KRW). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Woosu AMS Co.Ltd (066590)?
Balance-sheet figures for Woosu AMS Co.Ltd (as of Nov 9, 2026): return on equity −1.1%, debt of 0.33 per unit of equity. They feed the Quality Score of 38/100, which measures business quality independently of the share price.
How far is 066590 from its 52-week high?
Woosu AMS Co.Ltd trades at 2,325 KRW, about 40% below its 52-week high of 3,900 KRW and 27% above the low of 1,825 KRW (as of Nov 6, 2026). Distance from the high says nothing about value: that is what the fair value of 3,720 KRW is for.
Which stocks are comparable to Woosu AMS Co.Ltd?
From the same area (Consumer Cyclical) we also value O'Reilly Automotive, Inc, AutoZone, Inc, Hyundai Mobis Co, Fuyao Glass Industry Group, 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 Woosu AMS Co.Ltd stock attractive at the current price?
The data as of Nov 9, 2026: price 2,325 KRW, calculated fair value 3,720 KRW (+60%), Quality Score 38/100, from 2 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 066590 calculated?
We run Woosu AMS Co.Ltd through 2 models from 2 families: Multiples, Asset-Based. Every model gets the same audited fundamentals; the fair value of 3,720 KRW 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. Woosu AMS Co.Ltd currently trades 38% 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 Woosu AMS Co.Ltd (066590)?
The closing price on Nov 6, 2026 was 2,325 KRW. Our model-based fair value is 3,720 KRW, about +60% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Woosu AMS Co.Ltd right now?
The large discount to fair value meets weak quality (38/100). That raises the risk this is a value trap rather than a bargain. The model range is unusually wide (1,623 KRW to 5,817 KRW). The outcome hinges heavily on assumptions, so read the point estimate with caution. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.

Key figures of Woosu AMS Co.Ltd

How large is the market capitalisation of Woosu AMS Co.Ltd (066590)?
The market capitalisation of Woosu AMS Co.Ltd is 89.9B KRW (≈ $66.5M). 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 Woosu AMS Co.Ltd (066590)?
The price-to-sales ratio of Woosu AMS Co.Ltd is 0.21 (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 Woosu AMS Co.Ltd (066590)?
Earnings per share at Woosu AMS Co.Ltd are −18.81 KRW. Earnings per share over the last twelve months: total profit spread across every single share.
What is the net margin of Woosu AMS Co.Ltd (066590)?
The net margin of Woosu AMS Co.Ltd is −0.2% (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 Woosu AMS Co.Ltd (066590)?
The return on equity (ROE) of Woosu AMS Co.Ltd is −1.1% (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 Woosu AMS Co.Ltd (066590)?
On an EBIT basis the return on assets of Woosu AMS Co.Ltd is 0.9% (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 Woosu AMS Co.Ltd (066590)?
The operating margin of Woosu AMS 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 Woosu AMS Co.Ltd (066590)?
Revenue at Woosu AMS Co.Ltd is growing +12.6% versus a year earlier (3y avg +1.1%). 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 Woosu AMS Co.Ltd (066590)?
Earnings per share at Woosu AMS Co.Ltd are growing −17.2% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Woosu AMS Co.Ltd (066590) generate?
The free cash flow of Woosu AMS Co.Ltd is −19.1B KRW (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 Woosu AMS Co.Ltd (066590) carry?
The net debt of Woosu AMS Co.Ltd is 101B KRW (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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