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STX Engine Co (077970) Fair Value & Analysis

Industrials · KR · Market cap 937B KRW

SE STX Engine Co 077970 · KO
Price27,050 KRW
Fair Value22,223 KRW
Upside-17.9%
Quality41/100
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Healthy Growth
Thin margins · 8.9% net margin
Low debt · generates free cash flow
Ranks above peers (8/9)
Moderate moat 54/100
Evidence: High Range 16,513 KRW – 30,157 KRW Share as image

Fair value as of: Jul 22, 2026

From 22 valuation models · updated 19 days ago

Share price +10.6% over the past month.

Below-average quality, and screening another 18% overvalued on our models.

What matters now

  • Weak quality (41/100) and above fair value at the same time, the margin of safety is missing on both counts.
  • A fairly wide model range (16,513 KRW to 30,157 KRW) leaves room in how you read the outcome.
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Price vs Fair Value (5 years)

66,500 KRW 6,800 KRW Fair Value 22,223 KRW Mar 2021 Aug 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Jul 22, 2026.

How to read this chart

60‑month range 6,800 KRW – 66,500 KRW · fair‑value band 16,513 KRW – 30,157 KRW · the 27,050 KRW price screens above the 22,223 KRW fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 22, 2026.

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Analysis

STX Engine Co (077970) currently trades at 27,050 KRW, while our model-based Fair Value estimate is 22,223 KRW, implying the stock looks roughly 17.9% overvalued today. The Quality Score stands at 41/100 (below-average quality), in the Industrials sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: high).

Over the trailing twelve months, STX Engine Co generated revenue of 839B KRW at a net margin of 8.9%. Revenue grew 35.8% year over year. It earns a return on equity of 23.3%. Net debt stands at 149B KRW. Fundamentals as of Jul 22, 2026

Our scenario range runs from 16,513 KRW (bear case) to 30,157 KRW (bull case); at 27,050 KRW, the current price sits within that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 60% below its 52-week high and 36% above its 52-week low, currently below its 200-day average. For context, the median of 10 Industrials peers we cover trades at -48% fair-value upside, at -18%, 077970 screens cheaper than that median.

Fair Value models

Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.

Model BearBaseBull Evidence
Highest evidence
Growth DCF 19,050 KRW 24,656 KRW 34,303 KRW 80
Residual Income 11,674 KRW 15,452 KRW 65,087 KRW 76
Rev-Margin DCF 18,588 KRW 25,832 KRW 34,478 KRW 74
All 22 models by family
DCF Models
FCF DCF 18,441 KRW 24,180 KRW 34,776 KRW 38
Owner Earnings 21,216 KRW 28,061 KRW 40,699 KRW 31
5Y Revenue Exit 18,588 KRW 25,612 KRW 35,435 KRW 39
5Y EBITDA Exit 20,515 KRW 28,916 KRW 39,577 KRW 41
5Y P/E Exit 24,216 KRW 35,260 KRW 47,822 KRW 38
10Y Revenue Exit 17,953 KRW 24,215 KRW 31,508 KRW 36
10Y EBITDA Exit 19,622 KRW 26,457 KRW 34,353 KRW 37
10Y P/E Exit 21,954 KRW 30,761 KRW 40,018 KRW 35
Earnings-Based
Graham-Dodd 11,681 KRW 20,995 KRW 25,886 KRW 54
EPV 19,642 KRW 22,395 KRW 24,843 KRW 59
Multiples
P/E Multiple 27,055 KRW 36,073 KRW 45,091 KRW 63
P/S Multiple 21,901 KRW 29,202 KRW 36,502 KRW 58
P/B Multiple 21,901 KRW 29,202 KRW 36,502 KRW 55
EV/EBIT 26,143 KRW 33,512 KRW 40,881 KRW 53
EV/EBITDA 24,418 KRW 31,211 KRW 38,004 KRW 54
EV/Revenue 19,815 KRW 26,577 KRW 33,339 KRW 43
Asset-Based
NCAV (Graham) 4,272 KRW 5,725 KRW 8,545 KRW 50
Growth DCF
Growth DCF 19,050 KRW 24,656 KRW 34,303 KRW 80
Rev-Margin DCF 18,588 KRW 25,832 KRW 34,478 KRW 74
Economic Profit
Residual Income 11,674 KRW 15,452 KRW 65,087 KRW 76
ROIC Compounder 19,941 KRW 23,132 KRW 26,255 KRW 72
Growth Earnings
Growth-Adj P/E 19,104 KRW 27,292 KRW 35,479 KRW 68

Widest divergence: Multiples (29,202 KRW) versus Asset-Based (5,725 KRW). Highest evidence: Growth DCF (80).

Key figures & financial health

Revenue (TTM) 839B KRW
Revenue growth (YoY) +35.8%
Net margin 8.9%
Return on equity 23.3%
Free cash flow 53.9B KRW FY2025
Operating margin 9.3%
More key figures
EPS growth (YoY) +41.2%
Net debt 149B KRW FY2025

Figures from reported company fundamentals · as of Jul 22, 2026. TTM = trailing twelve months.

Quality Score breakdown

Overall quality 41/100

Of which business quality 41 · Market factors (momentum, volatility) 32

Profitability 46
Margins and returns on capital today
Quality Growth 48
Are margins and returns improving?
Cashflow 46
Earnings quality: real cash, not paper profit
Fin. Strength 40
Balance sheet, leverage, solvency risk
Investment 65
Disciplined investing over empire-building
Low Volatility 27
Calm price path (market factor)
Momentum 28
Price trend over the last 3–12 months (market factor)
52W Momentum 43
Distance to the 52-week high (market factor)
Net Issuance 0
Buybacks instead of dilution

Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.

About the company

STX Engine Co.,Ltd. manufactures and sells diesel engines and electronic communication devices in South Korea. The company operates through Civil Business, Special Business, and Electronic Communication segments. It offers marine and industrial engines, electrical and electronic components, as well as operates power generation facilities.

Full company description

STX Engine Co.,Ltd. manufactures and sells diesel engines and electronic communication devices in South Korea. The company operates through Civil Business, Special Business, and Electronic Communication segments. It offers marine and industrial engines, electrical and electronic components, as well as operates power generation facilities. In addition, the company sells engine parts and engages in servicing of parts and components activities. It serves shipyard and defense sectors. The company was formerly known as STX Corporation and changed its name to STX Engine Co.,Ltd. in April 2004. STX Engine Co.,Ltd. was founded in 1976 and is headquartered in Changwon-si, South Korea. STX Engine Co., Ltd. is a subsidiary of UAMCO., Ltd.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

STX Engine Co reported revenue of 789B KRW in FY2025 versus 493B KRW in FY2021, a compound +12.5%/yr. Reported net income was 68.9B KRW in FY2025, compounding +187.8%/yr from FY2021.

Growth Quality 71/100
Revenue growth appears healthy and is supported by profitability and cash-flow quality.
Latest Revenue (FY 2025)
789B KRW
Latest YoY
+8.9%
Avg. growth/yr (3Y)
+13.2%
Avg. growth/yr (5Y)
+6.1%
Avg. growth/yr (21Y)
+1.0%
Revenue +12.5%/yr
FY21 493B KRW
FY22 544B KRW
FY23 630B KRW
FY24 725B KRW
FY25 789B KRW
Net income +187.8%/yr
FY21 1.0B KRW
FY22 −26.7B KRW
FY23 5.7B KRW
FY24 27.2B KRW
FY25 68.9B KRW

077970 screens 18% overvalued. Compare with GE Vernova Inc →

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Cite: Fair Value Calculator (2026). "STX Engine Co Fair Value". https://www.fairvalue-calculator.com/stock/077970

Peer Group

Specialty Industrial Machinery · 809 stocks

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.

Quality Score 41 · Bottom 25%
Fair Value upside −18% · Above median
Return on equity (TTM) 23% · Top 25%
Return on assets 4% · Above median
Net margin (TTM) 9% · Above median
Operating margin (TTM) 9% · Above median
Revenue growth 36% · Top 25%
Debt / equity 0.01× · Lower than 75% of peers

Valuation Multiples vs Specialty Industrial Machinery median · lower = cheaper

P/FCF 0.0× · Cheaper than 75% of peers

Snowflake

Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.

VALUE 10 · sector 0
FUTURE 100 · sector 23
PAST 93 · sector 28
HEALTH 100 · sector 96
DIVIDEND 0 · sector 24

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

ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.

Similar stocks

10 more Specialty Industrial Machinery stocks, each showing price versus our Fair Value estimate (as of Jul 22, 2026).

Stock Price Fair Value vs Fair Value
GE Vernova Inc 1GEV €887.60 €186.93 -79%
1SIE 1SIE €273.20 €91.93 -66%
SMNS SMNS C$31.76 C$22.68 -29%
Eaton Corporation ETN $407.28 $171.92 -58%
Atlas Copco AB ATCOA kr 195.15 kr 112.59 -42%
Sandvik AB SAND kr 384.10 kr 193.01 -50%
Doosan Enerbility Co 034020 76,400 KRW 7,938 KRW -90%
Vestas Wind Systems A/S VWS kr 178.10 kr 124.54 -30%
Zhejiang Sanhua Intelligent Controls Co 002050 ¥43.20 ¥22.68 -48%
NARI Technology Co 600406 ¥22.19 ¥18.71 -16%

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Frequently asked questions

Is STX Engine Co (077970) overvalued or undervalued?
As of Jul 22, 2026, our model estimates a fair value of 22,223 KRW versus a price of 27,050 KRW, about −18% (overvalued).
What is the fair value of 077970?
Our model-based fair value for STX Engine Co is 22,223 KRW (as of Jul 22, 2026), built from audited fundamentals. The current price is 27,050 KRW.
What is the quality score of 077970?
STX Engine Co has a Quality Score of 41/100. 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 revenue of STX Engine Co (077970)?
STX Engine Co reported trailing-twelve-month revenue of about 839B KRW (latest available figure, as of Jul 22, 2026).
What is the net profit margin of 077970?
The net profit margin of STX Engine Co is about 8.9%, meaning it keeps roughly 8.9% of revenue as net income. Based on the latest reported figures.

How we calculate Fair Value

Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.

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