SDI Corporation (2351) Fair Value & Analysis
Technology · TW · Market cap 28.4B TWD
Fair value as of: Jul 21, 2026
From 24 valuation models · updated 20 days ago
Fair value updated Jul 21, 2026, revised from 28.89 TWD to 43.18 TWD (+49.5%) since Jul 7, 2026. Share price −16.5% over the past month.
Below-average quality, and screening another 75% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (54.53 TWD). The favourable scenario is already priced in.
- Solid but not exceptional quality (47/100) 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 21, 2026.
How to read this chart
60‑month range 61.70 TWD – 229.00 TWD · fair‑value band 33.04 TWD – 54.53 TWD · the 170.00 TWD price screens above the 43.18 TWD fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). Dashed = 300-day average. As of Jul 21, 2026.
Analysis
SDI Corporation (2351) currently trades at 170.00 TWD, while our model-based Fair Value estimate is 43.18 TWD, implying the stock looks roughly 74.6% overvalued today. The Quality Score stands at 47/100 (below-average 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, SDI Corporation generated revenue of 10.5B TWD at a net margin of 3.9%. Revenue grew 11.0% year over year. It earns a return on equity of 6.0%. Net debt stands at 2.0B TWD. Fundamentals as of Jul 21, 2026
Our scenario range runs from 33.04 TWD (bear case) to 54.53 TWD (bull case); at 170.00 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 27% below its 52-week high and 157% above its 52-week low, currently above its 200-day average. For context, the median of 10 Technology peers we cover trades at -75% fair-value upside, at -75%, 2351 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 24 models by family
Widest divergence: Multiples (32.68 TWD) versus Growth DCF (15.31 TWD). Highest evidence: Growth DCF (80).
Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Jul 21, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 47 · Market factors (momentum, volatility) 65
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
SDI Corporation, together with its subsidiaries, manufactures and sells semiconductor lead frames, LED lead frames, stationery and office products, and high precision dies in Taiwan, China, Japan, Malaysia, and internationally.
Full company description
SDI Corporation, together with its subsidiaries, manufactures and sells semiconductor lead frames, LED lead frames, stationery and office products, and high precision dies in Taiwan, China, Japan, Malaysia, and internationally. The company engages in the smelting and rolling of metal strips; manufacturing and processing of electronic components and molds; and international trade business. SDI Corporation was founded in 1953 and is headquartered in Changhua, Taiwan.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
SDI Corporation reported revenue of 10.2B TWD in FY2025 versus 11.2B TWD in FY2021, a compound −2.1%/yr. Reported net income was 303M TWD in FY2025, compounding −22.8%/yr from FY2021.
2351 screens 75% overvalued. Compare with ASML Holding →
Peer Group
Semiconductor Equipment & Materials · 211 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 Semiconductor Equipment & Materials 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 Semiconductor Equipment & Materials stocks, each showing price versus our Fair Value estimate (as of Jul 21, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| ASML Holding ASML | C$50.50 | C$15.57 | -69% |
| Applied Materials, Inc AMAT | $579.43 | $143.08 | -75% |
| Lam Research Corporation LRCX | $346.10 | $67.57 | -80% |
| KLA Corporation KLAC | $212.75 | $53.01 | -75% |
| NAURA Technology Group 002371 | ¥774.20 | ¥151.43 | -80% |
| Advanced Micro-Fabrication Equipment Inc 688012 | ¥350.69 | ¥41.79 | -88% |
| Piotech Inc 688072 | ¥832.00 | ¥431.44 | -48% |
| Hon. Precision, Inc 7769 | 6,005 TWD | 1,804 TWD | -70% |
| Hangzhou Changchuan Technology Co 300604 | ¥325.24 | ¥33.33 | -90% |
| MPI Corporation 6223 | 5,600 TWD | 609.44 TWD | -89% |
Compare SDI Corporation with another stock
Price, fair value, quality and upside side by side.
Explore undervalued stocks
More undervalued Technology stocks →
Frequently asked questions
Is SDI Corporation (2351) overvalued or undervalued?
What is the fair value of 2351?
What is the quality score of 2351?
What is the revenue of SDI Corporation (2351)?
What is the net profit margin of 2351?
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.
Track SDI Corporation and try Pro for 14 days
One email gets you 14 days of full Pro (review alerts, the 35,000+ stock screener, the diversification check) plus the monthly Top-25 report of the most undervalued quality stocks. No card, cancel anytime.
Zero risk: nothing is ever charged. After 14 days you decide whether to stay.