Sunny Electronics Corp (004770) Fair Value & Analysis
Technology · KR · Market cap 57.8B KRW
Fair value as of: Jul 22, 2026
From 22 valuation models · updated 19 days ago
Fair value updated Jul 22, 2026, revised from 1,030 KRW to 1,032 KRW (+0.2%) since Jun 25, 2026. Share price +5.7% over the past month.
A solid business, but screening 40% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (1,404 KRW). The favourable scenario is already priced in.
- Solid but not exceptional quality (67/100) and above fair value, neither a clear bargain nor a standout compounder.
Price vs Fair Value (5 years)
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 1,306 KRW – 6,307 KRW · fair‑value band 799.97 KRW – 1,404 KRW · the 1,708 KRW price screens above the 1,032 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.
Analysis
Sunny Electronics Corp (004770) currently trades at 1,708 KRW, while our model-based Fair Value estimate is 1,032 KRW, implying the stock looks roughly 39.6% overvalued today. The Quality Score stands at 67/100 (solid quality), in the Technology 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, Sunny Electronics Corp generated revenue of 13.9B KRW at a net margin of 35.2%. Revenue declined 20.6% year over year. It earns a return on equity of 6.6%. Fundamentals as of Jul 22, 2026
Our scenario range runs from 799.97 KRW (bear case) to 1,404 KRW (bull case); at 1,708 KRW, the current price sits above 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 16% below its 52-week high and 20% above its 52-week low, currently above its 200-day average. For context, the median of 10 Technology peers we cover trades at -73% fair-value upside, at -40%, 004770 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.
All 22 models by family
Widest divergence: Asset-Based (1,600 KRW) versus Earnings-Based (219.06 KRW). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Jul 22, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 66 · Market factors (momentum, volatility) 49
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
Sunny Electronics Corp., together with its subsidiaries, manufactures and sells crystal oscillator products in South Korea. It offers crystal units, crystal and MEMS oscillators, filters, VCXO oscillators, and TCXO and VCTCXO oscillators. The company was formerly known as Sunny Electric Engineering Co., Ltd. and changed its name to Sunny Electronics Corp.
Full company description
Sunny Electronics Corp., together with its subsidiaries, manufactures and sells crystal oscillator products in South Korea. It offers crystal units, crystal and MEMS oscillators, filters, VCXO oscillators, and TCXO and VCTCXO oscillators. The company was formerly known as Sunny Electric Engineering Co., Ltd. and changed its name to Sunny Electronics Corp. in March 1999. Sunny Electronics Corp. was founded in 1966 and is headquartered in Chungju-si, South Korea.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Sunny Electronics Corp reported revenue of 12.4B KRW in FY2025 versus 16.4B KRW in FY2021, a compound −6.8%/yr. Reported net income was 3.6B KRW in FY2025, compounding −5.3%/yr from FY2021.
004770 screens 40% overvalued. Compare with Delta Electronics, Inc →
Peer Group
Electronic Components · 625 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.
Valuation Multiples vs Electronic Components median · lower = cheaper
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 0: the price sits above our fair-value range.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Electronic Components stocks, each showing price versus our Fair Value estimate (as of Jul 22, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Delta Electronics, Inc 2308 | 1,880 TWD | 515.23 TWD | -73% |
| Hon Hai Precision Industry Co 2317 | 242.50 TWD | 270.47 TWD | +12% |
| Luxshare Precision Industry Co 002475 | ¥62.14 | ¥38.44 | -38% |
| Samsung Electro-Mechanics Co 009150 | 1,260,000 KRW | 166,421 KRW | -87% |
| Elite Material Co 2383 | 4,990 TWD | 714.36 TWD | -86% |
| Yageo Corporation 2327 | 699.00 TWD | 216.55 TWD | -69% |
| Shengyi Technology Co 600183 | ¥132.29 | ¥27.45 | -79% |
| Shennan Circuits Co 002916 | ¥364.00 | ¥93.50 | -74% |
| Victory Giant Technology (HuiZhou) Co 2476 | HK$297.00 | HK$103.98 | -65% |
| Wus Printed Circuit (Kunshan) Co 002463 | ¥127.80 | ¥31.95 | -75% |
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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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