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.
Yankey Engineering CoTPE:6691 -6.63%97 PB Ratio is 11.18 as of Jul. 17, 2026, which is 106% above its 10-year median of 5.44. GuruFocus rates TPE:6691 with a GF Score™ of 97/100 and a GF Value™ of NT$597.10 (Modestly Overvalued). The stock has 2 warning signs investors should review. Among 1,722 Construction companies, Yankey Engineering Co ranks worse than 96.4% on this metric.
The historical rank and industry rank for Yankey Engineering Co's PB Ratio or its related term are showing as below:
TPE:6691'
s PB Ratio Range Over the Past 10 Years
Min: 2.13 Med: 5.44 Max: 12.59
Current: 11.18
During the past 12 years, Yankey Engineering Co's highest PB Ratio was 12.59. The lowest was 2.13. And the median was 5.44.
TPE:6691's PB Ratio is ranked worse than 96.4% of 1722
companies
in the Construction industry
Industry Median: 1.33
vs TPE:6691: 11.18
During the past 12 months, Yankey Engineering Co's average Book Value Per Share Growth Rate was 20.70% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 13.90% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 21.90% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 23.80% per year.
During the past 12 years, the highest 3-Year average Book Value Per Share Growth Rate of Yankey Engineering Co was 33.10% per year. The lowest was 12.20% per year. And the median was 24.55% per year.
Back to Basics: PB Ratio
Yankey Engineering Co (TPE:6691) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
* 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.
For the Engineering & Construction subindustry, Yankey Engineering Co'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.
Yankey Engineering Co PB Ratio vs Construction Industry
For the Construction industry and Industrials sector, Yankey Engineering Co's PB Ratio distribution charts can be found below:
* The bar in red indicates where Yankey Engineering Co's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Yankey Engineering Co (TPE:6691) has a PB Ratio of 11.18 as of Jul. 17, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Yankey Engineering Co and its competitors. This is 106% above median its historical median of 5.44. Over the past decade, Yankey Engineering Co's PB Ratio has ranged from 2.13 to 12.59. According to the industry distribution chart, Yankey Engineering Co ranks #1660 out of 1722 companies in the Construction industry, placing it in the top 96.4%.
Is Yankey Engineering Co's PB Ratio too high?
Yankey Engineering Co's current PB Ratio of 11.18 is 106% above median its 10-year median of 5.44. Over the past 10 years, this metric has ranged from a low of 2.13 to a high of 12.59. The Construction industry median PB Ratio is 1.33. Yankey Engineering Co's value of 11.18 is 740.6% above this industry median. Based on the distribution chart, Yankey Engineering Co ranks #1660 out of 1722 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Yankey Engineering Co has a GF Score™ of 97/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's PB Ratio compare to PWR and FIX?
According to the Construction industry distribution chart, Yankey Engineering Co ranks #1660 out of 1722 companies for PB Ratio. This places Yankey Engineering Co in the lower half of its industry. The industry median PB Ratio is 1.33. Yankey Engineering Co's value of 11.18 is 740.6% above this benchmark. Historically, Yankey Engineering Co's own PB Ratio has ranged from 2.13 to 12.59 over the past decade. While the company's 10-year median is 5.44 vs. the industry median of 1.33, Yankey Engineering Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for a Construction company?
The median PB Ratio among Construction companies is 1.33, based on 1,722 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Yankey Engineering Co's current PB Ratio of 11.18 is 740.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Yankey Engineering Co and its competitors. For the Construction industry, the median PB Ratio is 1.33 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yankey Engineering Co's current PB Ratio is 11.18, which is 106% above median its own 10-year median of 5.44. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yankey Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, Yankey Engineering Co (TPE:6691) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$597.10, compared to a current price of NT$704.00 — trading 17.9% above its estimated fair value. The current PB Ratio is 11.18, which is 106% above median its 10-year median of 5.44 and 740.6% above the Construction industry median of 1.33. Yankey Engineering Co's overall GF Score™ is 97/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Yankey Engineering Co (TPE:6691), the current PB Ratio is 11.18 as of Jul. 17, 2026. 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 Yankey Engineering Co (TPE:6691) Overvalued in 2026?
Based on GuruFocus' analysis, Yankey Engineering Co stock appears to be overvalued.
The current stock price of NT$704.00 is trading 17.9% above its estimated GF Value™ of NT$597.10.
GuruFocus considers Yankey Engineering Co to be Modestly Overvalued.
Key valuation signals for TPE:6691:
PB Ratio: 11.18 (106% above median its 10-year median of 5.44)
GF Value™: NT$597.10 vs. price of NT$704.00 (17.9% above fair value)
Industry Position: 740.6% above the Construction median (#1660 of 1722)
No single metric tells the full story. See the TPE:6691 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Yankey Engineering Co Ltd is engaged in the design and installation of clean room systems, refrigeration, air conditioning systems, and ice-making systems, as well as the sales of materials for these systems. The various services offered by the company include clean room system engineering, high and low voltage transmission system installation, design and construction of fire, water, and electrical systems, and providing comprehensive MEP (Mechanical, Electrical, Plumbing) turnkey services for commercial office buildings, among others. Geographically, the company generates the majority of its revenue from Taiwan and the rest from China, Thailand, Malaysia, and the USA.
97GF Score
Get the complete analysis for TPE:6691
PB Ratio 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:6691 has been successfully added to your 
