Tan De Tech Co (ROCO:6867) ROE % Adjusted to Book Value: 0.25% (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:6867 Tan De Tech Co Ltd ROCO:6867
63 GF Score
Price NT$30.00
GF Value NT$33.79
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Tan De Tech Co ROE % Adjusted to Book Value?

Tan De Tech Co ROCO:6867 63 ROE % Adjusted to Book Value is 0.25% as of Dec. 2025. GuruFocus rates ROCO:6867 with a GF Score™ of 63/100 and a GF Value™ of NT$33.79 (Modestly Undervalued). The stock has 3 warning signs investors should review.

Tan De Tech Co's ROE % for the quarter that ended in Dec. 2025 was 0.51%. Tan De Tech Co's PB Ratio for the quarter that ended in Dec. 2025 was 2.07. Tan De Tech Co's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 was 0.25%.


Tan De Tech Co ROE % Adjusted to Book Value Related Terms


Tan De Tech Co ROE % Adjusted to Book Value Historical Data

* Premium members only.

The historical data trend for Tan De Tech 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.

Tan De Tech Co ROE % Adjusted to Book Value Chart

Tan De Tech Co Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial 0.00 4.30 4.68 4.11 -3.09

Tan De Tech Co Semi-Annual Data
Dec19 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 5.19 3.36 3.25 -5.91 0.25

ROCO:6867 vs ORLY, AZO: ROE % Adjusted to Book Value Comparison

For the Auto Parts subindustry, Tan De Tech 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.


Tan De Tech Co ROE % Adjusted to Book Value vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Tan De Tech Co's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where Tan De Tech Co's ROE % Adjusted to Book Value falls into.


ROCO:6867
63GF Score
Tan De Tech Co Ltd ROCO:6867
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tan De Tech Co ROE % Adjusted to Book Value Calculation

Tan De Tech 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
=-6.40% / 2.07
=-3.09%

Tan De Tech 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
=0.51% / 2.07
=0.25%

* 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 0.25% mean?
Tan De Tech Co (ROCO:6867) has a ROE % Adjusted to Book Value of 0.25% 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 Tan De Tech Co and its competitors.
Is Tan De Tech Co's ROE % Adjusted to Book Value too high?
Tan De Tech Co's current ROE % Adjusted to Book Value is 0.25%. Overall, Tan De Tech Co has a GF Score™ of 63/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Tan De Tech Co's ROE % Adjusted to Book Value compare to ORLY and AZO?
Tan De Tech Co's ROE % Adjusted to Book Value of 0.25% can be compared against companies in the Vehicles & Parts 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 Vehicles & Parts company?
A good ROE % Adjusted to Book Value depends on the Vehicles & Parts 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 Tan De Tech Co and its competitors. Tan De Tech Co's current ROE % Adjusted to Book Value is 0.25%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tan De Tech Co stock overvalued right now?
Based on GuruFocus' analysis, Tan De Tech Co (ROCO:6867) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$33.79, compared to a current price of NT$30.00 — trading 11.2% below its estimated fair value. The current ROE % Adjusted to Book Value is 0.25%. Tan De Tech Co's overall GF Score™ is 63/100 with 3 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 Tan De Tech Co (ROCO:6867), the current ROE % Adjusted to Book Value is 0.25% 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 Tan De Tech Co (ROCO:6867) Overvalued in 2026?

Based on GuruFocus' analysis, Tan De Tech Co stock appears to be undervalued. The current stock price of NT$30.00 is trading 11.2% below its estimated GF Value™ of NT$33.79. GuruFocus considers Tan De Tech Co to be Modestly Undervalued.

Key valuation signals for ROCO:6867:

  • ROE % Adjusted to Book Value: 0.25%
  • GF Value™: NT$33.79 vs. price of NT$30.00 (11.2% below fair value)
  • GF Score™: 63/100 with 3 warning signs

No single metric tells the full story. See the ROCO:6867 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tan De Tech Co Business Description

Address No. 8, Dougong 9th Road, Yunlin County, Douliu City, TWN, 64069
Tan De Tech Co Ltd designs and manufactures vehicle parts. The company's principal businesses include electronic and automotive lighting component manufacturing, material wholesale, and product design. The company manufactures light guide plates, automotive lamps, and develops related molds for sales to panel manufacturers and automakers.
63GF Score

Get the complete analysis for ROCO:6867

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

NT$30.00
Price
NT$33.79
GF Value