Shian Yih Electronic Industry Co (3531) Fair Value & Analysis
Technology · TW · Market cap 1.4B TWD
Fair value as of: Jul 23, 2026
From 21 valuation models · updated 18 days ago
Fair value updated Jul 23, 2026, revised from 7.57 TWD to 15.14 TWD (+100.0%) since Jul 9, 2026. Share price −5.7% over the past month.
A solid business, but screening 29% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (17.00 TWD). The favourable scenario is already priced in.
- Solid but not exceptional quality (64/100) 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 23, 2026.
How to read this chart
60‑month range 16.37 TWD – 33.13 TWD · fair‑value band 13.90 TWD – 17.00 TWD · the 21.40 TWD price screens above the 15.14 TWD fair value. Dashed = 300-day average. As of Jul 23, 2026.
Analysis
Shian Yih Electronic Industry Co (3531) currently trades at 21.40 TWD, while our model-based Fair Value estimate is 15.14 TWD, implying the stock looks roughly 29.3% overvalued today. The Quality Score stands at 64/100 (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, Shian Yih Electronic Industry Co generated revenue of 1.2B TWD at a net margin of 1.2%. Revenue declined 25.2% year over year. It earns a return on equity of 0.6%. The stock trades on a trailing P/E of 77.9. Fundamentals as of Jul 23, 2026
Our scenario range runs from 13.90 TWD (bear case) to 17.00 TWD (bull case); at 21.40 TWD, 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 12% below its 52-week high and 8% above its 52-week low, currently below its 200-day average. For context, the median of 10 Technology peers we cover trades at -67% fair-value upside, at -29%, 3531 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 21 models by family
Widest divergence: Growth DCF (37.90 TWD) versus Earnings-Based (2.45 TWD). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Jul 23, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 66 · Market factors (momentum, volatility) 52
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
Shian Yih Electronic Industry Co.,Ltd, together with its subsidiaries, manufactures and sells of back light modules in Taiwan, China, Japan, the United States, and internationally.
Full company description
Shian Yih Electronic Industry Co.,Ltd, together with its subsidiaries, manufactures and sells of back light modules in Taiwan, China, Japan, the United States, and internationally. It provides small to medium size LED back light modules for automotive, tablets, and watches; light guide films; motorcycle and vehicle LED headlight modules; precision injection molds for electronic housing, mobile phones and MP4, microphone, and car and navigation system backlight housing. The company also offers plastic products, including plastic frames, light guide plates, precision plastic parts, molds, mold design and manufacturing, and other products. Shian Yih Electronic Industry Co.,Ltd was incorporated in 1979 and is headquartered in Taichung, Taiwan.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Shian Yih Electronic Industry Co reported revenue of 1.3B TWD in FY2025 versus 2.1B TWD in FY2021, a compound −11.0%/yr. Reported net income was 18.1M TWD in FY2025, compounding −32.0%/yr from FY2021.
3531 screens 29% overvalued. Compare with NVIDIA Corporation →
Peer Group
Semiconductors · 321 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 Semiconductors 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 Semiconductors stocks, each showing price versus our Fair Value estimate (as of Jul 23, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| NVIDIA Corporation NVDA | $211.80 | $96.91 | -54% |
| Taiwan Semiconductor Manufacturing Company TSM | $418.47 | $208.16 | -50% |
| Broadcom Inc 1AVGO | €367.75 | €121.25 | -67% |
| Micron Technology, Inc 1MU | €784.90 | €185.67 | -76% |
| SK hynix Inc 000660 | 2,082,000 KRW | 1,109,311 KRW | -47% |
| Advanced Micro Devices, Inc 1AMD | €425.20 | €56.33 | -87% |
| Intel Corporation INTC | C$68.40 | C$9.82 | -86% |
| Texas Instruments Incorporated TXN | $311.46 | $59.75 | -81% |
| MediaTek Inc 2454 | 3,740 TWD | 1,163 TWD | -69% |
| SK Square Co 402340 | 1,212,000 KRW | 868,000 KRW | -28% |
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Frequently asked questions
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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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