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Sun Brothers Development Co (3489) Fair Value & Analysis

Real Estate · TW · Market cap 2.1B TWD

Price22.75 TWD
Fair Value4.02 TWD
Upside-82.3%
Quality95/100
Evidence: Low Range 3.95 TWD – 4.09 TWD

Fair value as of: Jun 26, 2026

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Analysis

Sun Brothers Development Co (3489) currently trades at 22.75 TWD, while our model-based Fair Value estimate is 4.02 TWD — implying the stock looks roughly 82.3% overvalued today. We read business quality at 95/100 (high quality), in the Real Estate 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: low).

About the company

Sun Brothers Development Co., Limited, together with its subsidiaries, develops, constructs, leases, and sells residential, commercial, and industrial buildings in Taiwan. It is also involved in the wholesale of building materials, real estate sales, leasing, residential and building/industrial plant development, and house construction. Sun Brothers Development Co., Limited was formerly known as Sun Power Development Co., Limited and changed its name to Sun Brothers Development Co., Ltd. in 2013. The company was founded in 1980 and is based in Taoyuan City, Taiwan.

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Frequently asked questions

Is Sun Brothers Development Co (3489) undervalued?
As of Jun 26, 2026, our model estimates a fair value of 4.02 TWD versus a price of 22.75 TWD — about −82% (overvalued). Model-based estimate, not financial advice.
What is the fair value of 3489?
Our 21-model fair value for Sun Brothers Development Co is 4.02 TWD (as of Jun 26, 2026), built from audited fundamentals. The current price is 22.75 TWD.
What is the quality score of 3489?
Sun Brothers Development Co has a Quality Score of 95/100, measuring profitability, growth and balance-sheet strength from non-valuation factors.

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.

Educational research only · not financial advice · no buy/sell recommendation. Model-based estimates are not certainties; their reliability depends on data quality and assumptions.