Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
G-Tech Optoelectronics's book value per share for the quarter that ended in Dec. 2025 was NT$10.61.
During the past 12 months, G-Tech Optoelectronics's average Book Value Per Share Growth Rate was 10.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 5.90% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 1.00% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -2.30% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the book value growth rate using book value per share data.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of G-Tech Optoelectronics was 84.20% per year. The lowest was -48.00% per year. And the median was -3.85% per year.
During the past 13 years, the highest P/B Ratio of G-Tech Optoelectronics was 8.65. The lowest was 0.67. And the median was 2.63.
G-Tech Optoelectronics (TPE:3149) Book Value per Share Explanation
Usually a company's book value and Tangible Book per Share may not reflect its true value. The assets may be carried on the balance sheets at the original cost minus depreciation. This may underestimate the true economic values of the assets. It also may over-estimate their true economic value because the assets can become obsolete.
For financial companies such as banks and insurance companies, their assets may be reported in current market value of the assets owned. Book values of financial companies are more accurate indicator of the economic value of the company.
G-Tech Optoelectronics Book Value per Share Related Terms
G-Tech Optoelectronics Book Value per Share Historical Data
* Premium members only.
The historical data trend for G-Tech Optoelectronics's Book Value per Share can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
TPE:3149 vs APH, GLW: Book Value per Share Comparison
For the Electronic Components subindustry, G-Tech Optoelectronics's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
G-Tech Optoelectronics PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, G-Tech Optoelectronics's PB Ratio distribution charts can be found below:
* The bar in red indicates where G-Tech Optoelectronics's PB Ratio falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
What does a Book Value per Share of NT$10.61 mean?
G-Tech Optoelectronics (TPE:3149) has a Book Value per Share of NT$10.61 as of Dec. 2025. Book value per share gives the per-share value of a company's stockholder equity. View historical data on G-Tech Optoelectronics and its competitors.
Is G-Tech Optoelectronics' Book Value per Share too high?
G-Tech Optoelectronics' current Book Value per Share is NT$10.61. Overall, G-Tech Optoelectronics has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does G-Tech Optoelectronics' Book Value per Share compare to APH and GLW?
G-Tech Optoelectronics' Book Value per Share of NT$10.61 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Book Value per Share for a Hardware company?
A good Book Value per Share depends on the Hardware industry context. However, Book Value per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Book Value per Share mean?
A high Book Value per Share can signal that a stock is expensive relative to its fundamentals. Book value per share gives the per-share value of a company's stockholder equity. View historical data on G-Tech Optoelectronics and its competitors. G-Tech Optoelectronics's current Book Value per Share is NT$10.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is G-Tech Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, G-Tech Optoelectronics (TPE:3149) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$20.56, compared to a current price of NT$69.60 — trading 238.5% above its estimated fair value. The current Book Value per Share is NT$10.61. G-Tech Optoelectronics' overall GF Score™ is 51/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Book Value per Share calculated?
Book Value per Share is calculated from a company's financial statements. For G-Tech Optoelectronics (TPE:3149), the current Book Value per Share is NT$10.61 as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is G-Tech Optoelectronics (TPE:3149) Overvalued in 2026?
Based on GuruFocus' analysis, G-Tech Optoelectronics stock appears to be overvalued.
The current stock price of NT$69.60 is trading 238.5% above its estimated GF Value™ of NT$20.56.
GuruFocus considers G-Tech Optoelectronics to be Significantly Overvalued.
Key valuation signals for TPE:3149:
Book Value per Share: NT$10.61
GF Value™: NT$20.56 vs. price of NT$69.60 (238.5% above fair value)
No single metric tells the full story. See the TPE:3149 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
G-Tech Optoelectronics Corp operates in an optoelectronic glass processing market. The company manufactures and markets optical glass products and electronic components. The segments of the company are Smart optoelectronics, that is revenue-generating segment; Smart buildings, and Smart cars. The Smart optoelectronics is in charge of designing, manufacturing, and selling general consumer electronics vehicle glass as well as protective touch control glass for industrial control computers.
51GF Score
Get the complete analysis for TPE:3149
Book Value per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TPE:3149 has been successfully added to your 
