Goldtek Technology Co (ROCO:6638) ROE % Adjusted to Book Value: -21.00% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:6638 Goldtek Technology Co Ltd ROCO:6638
59 GF Score
Price NT$46.30
GF Value NT$34.68
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is Goldtek Technology Co ROE % Adjusted to Book Value?

Goldtek Technology Co ROCO:6638 +5.23% 59 ROE % Adjusted to Book Value is -21.00% as of Dec. 2025. GuruFocus rates ROCO:6638 with a GF Score™ of 59/100 and a GF Value™ of NT$34.68 (Significantly Overvalued). The stock has 5 warning signs investors should review.

Goldtek Technology Co's ROE % for the quarter that ended in Dec. 2025 was -15.96%. Goldtek Technology Co's PB Ratio for the quarter that ended in Dec. 2025 was 0.76. Goldtek Technology Co's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 was -21.00%.


Goldtek Technology Co ROE % Adjusted to Book Value Related Terms


Goldtek Technology Co ROE % Adjusted to Book Value Historical Data

* Premium members only.

The historical data trend for Goldtek Technology Co's ROE % Adjusted to Book Value 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.

Goldtek Technology Co ROE % Adjusted to Book Value Chart

Goldtek Technology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.22 7.24 2.61 1.51 -36.25

Goldtek Technology Co Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
ROE % Adjusted to Book Value Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 2.49 4.22 -1.05 -42.93 -21.00

ROCO:6638 vs CSCO, CIEN, MSI: ROE % Adjusted to Book Value Comparison

For the Communication Equipment subindustry, Goldtek Technology Co's ROE % Adjusted to Book Value, along with its competitors' market caps and ROE % Adjusted to Book Value 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.


Goldtek Technology Co ROE % Adjusted to Book Value vs Hardware Industry

For the Hardware industry and Technology sector, Goldtek Technology Co's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where Goldtek Technology Co's ROE % Adjusted to Book Value falls into.


ROCO:6638
59GF Score
Goldtek Technology Co Ltd ROCO:6638
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Goldtek Technology Co ROE % Adjusted to Book Value Calculation

Goldtek Technology Co's ROE % Adjusted to Book Value for the fiscal year that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-27.55% / 0.76
=-36.25%

Goldtek Technology Co's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=-15.96% / 0.76
=-21.00%

* 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 ROE % Adjusted to Book Value of -21.00% mean?
Goldtek Technology Co (ROCO:6638) has a ROE % Adjusted to Book Value of -21.00% as of Dec. 2025. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Goldtek Technology Co and its competitors.
Is Goldtek Technology Co's ROE % Adjusted to Book Value too high?
Goldtek Technology Co's current ROE % Adjusted to Book Value is -21.00%. Overall, Goldtek Technology Co has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Goldtek Technology Co's ROE % Adjusted to Book Value compare to CSCO and CIEN?
Goldtek Technology Co's ROE % Adjusted to Book Value of -21.00% 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 ROE % Adjusted to Book Value for a Hardware company?
A good ROE % Adjusted to Book Value depends on the Hardware industry context. However, ROE % Adjusted to Book Value 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 ROE % Adjusted to Book Value mean?
A high ROE % Adjusted to Book Value can signal that a stock is expensive relative to its fundamentals. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Goldtek Technology Co and its competitors. Goldtek Technology Co's current ROE % Adjusted to Book Value is -21.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Goldtek Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Goldtek Technology Co (ROCO:6638) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$34.68, compared to a current price of NT$46.30 — trading 33.5% above its estimated fair value. The current ROE % Adjusted to Book Value is -21.00%. Goldtek Technology Co's overall GF Score™ is 59/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % Adjusted to Book Value calculated?
ROE % Adjusted to Book Value is calculated from a company's financial statements. For Goldtek Technology Co (ROCO:6638), the current ROE % Adjusted to Book Value is -21.00% 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 Goldtek Technology Co (ROCO:6638) Overvalued in 2026?

Based on GuruFocus' analysis, Goldtek Technology Co stock appears to be overvalued. The current stock price of NT$46.30 is trading 33.5% above its estimated GF Value™ of NT$34.68. GuruFocus considers Goldtek Technology Co to be Significantly Overvalued.

Key valuation signals for ROCO:6638:

  • ROE % Adjusted to Book Value: -21.00%
  • GF Value™: NT$34.68 vs. price of NT$46.30 (33.5% above fair value)
  • GF Score™: 59/100 with 5 warning signs

No single metric tells the full story. See the ROCO:6638 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Goldtek Technology Co Business Description

Address Jian 1st Road, 16th Floor, No.166, Zhonghe District, New Taipei City, TWN, 235
Goldtek Technology Co Ltd is engaged in customization and contract manufacturing for information and communication technology devices for various industries. Its services include software development, PCBA board level design, and turn-key solution which includes ID/ME design, hardware/software development, quality testing, manufacturing and EMC/Safety certification tests.
59GF Score

Get the complete analysis for ROCO:6638

ROE % Adjusted to Book Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$46.30
Price
NT$34.68
GF Value