TacBright Optronics Corporation (6434) Fair Value & Analysis
Basic Materials · TW · Market cap 5.7B TWD
Fair value as of: Jul 23, 2026
From 11 valuation models · updated 18 days ago
Share price −6.7% over the past month.
A solid business, but screening 77% overvalued on our models.
What matters now
- The price sits above even our optimistic bull case (4.96 TWD). The favourable scenario is already priced in.
- Solid but not exceptional quality (50/100) and above fair value, neither a clear bargain nor a standout compounder.
- A fairly wide model range (2.39 TWD to 4.96 TWD) leaves room in how you read the outcome.
Price vs Fair Value (8 months)
White line = price, green steps = our fair value per fiscal year. As of Jul 23, 2026.
How to read this chart
8‑month range 3.81 TWD – 36.50 TWD · fair‑value band 2.39 TWD – 4.96 TWD · the 16.05 TWD price screens above the 3.68 TWD fair value. As of Jul 23, 2026.
Analysis
TacBright Optronics Corporation (6434) currently trades at 16.05 TWD, while our model-based Fair Value estimate is 3.68 TWD, implying the stock looks roughly 77.1% overvalued today. The Quality Score stands at 50/100 (solid quality), in the Basic Materials 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: medium).
Over the trailing twelve months, TacBright Optronics Corporation generated revenue of 1.2B TWD at a net margin of -9.5%. Revenue declined 5.3% year over year. It earns a return on equity of -5.5%. Net debt stands at 681M TWD. Fundamentals as of Jul 23, 2026
Our scenario range runs from 2.39 TWD (bear case) to 4.96 TWD (bull case); at 16.05 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 58% below its 52-week high and 337% above its 52-week low, currently above its 200-day average. For context, the median of 10 Basic Materials peers we cover trades at -58% fair-value upside, at -77%, 6434 screens richer 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 11 models by family
Widest divergence: Asset-Based (2.94 TWD) versus DCF Models (2.08 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 49 · Market factors (momentum, volatility) 43
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
TacBright Optronics Corporation engages in the research, development, manufacturing, and sales of triacetate cellulose (TAC) films.
Full company description
TacBright Optronics Corporation engages in the research, development, manufacturing, and sales of triacetate cellulose (TAC) films. Its products are used for protective film in liquid crystal displays (LCDs), as well as for sunglasses, photographic equipment filters, anti-glare goggles, car navigation, other polarizing microscopes, and special medical glasses. The company serves LCD polarizer manufacturers in Taiwan, South Korea, Japan, and Mainland China. TacBright Optronics Corporation was founded in 1995 and is based in Miaoli, Taiwan.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
TacBright Optronics Corporation reported revenue of 1.2B TWD in FY2025 versus 1.8B TWD in FY2021, a compound −9.3%/yr. Reported net income was −115M TWD in FY2025.
6434 screens 77% overvalued. Compare with Linde plc →
Peer Group
Specialty Chemicals · 669 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 Specialty Chemicals 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 Specialty Chemicals stocks, each showing price versus our Fair Value estimate (as of Jul 23, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Linde plc LIN | $489.98 | $222.03 | -55% |
| Nan Ya Plastics Corporation 1303 | 181.50 TWD | 255.83 TWD | +41% |
| Wanhua Chemical Group 600309 | ¥70.04 | ¥68.03 | -3% |
| Novozymes A/S NSISB | kr 428.20 | kr 179.66 | -58% |
| Asian Paints Limited ASIANPAINT | ₹2,689 | ₹668.81 | -75% |
| Solar Industries India Limited SOLARINDS | ₹18,236 | ₹2,793 | -85% |
| Pidilite Industries Limited PIDILITIND | ₹1,560 | ₹351.84 | -77% |
| PT Chandra Asri Pacific Tbk TPIA | 1,805 IDR | 2,888 IDR | +60% |
| Linde India Limited LINDEINDIA | ₹7,115 | ₹757.93 | -89% |
| Berger Paints India Limited BERGEPAINT | ₹493.70 | ₹164.29 | -67% |
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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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