Yankey Engineering Co has the GF Score of 99, which implies that the company
might have
Highest outperformance potential.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Yankey Engineering Co
might have
Highest outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Yankey Engineering Co (TPE:6691) GF Score Explanation
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Yankey Engineering Co GF Score Related Terms
TPE:6691 vs PWR, FIX, EME: GF Score Comparison
For the Engineering & Construction subindustry, Yankey Engineering Co's GF Score, along with its competitors' market caps and GF Score 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 GF Score vs Construction Industry
For the Construction industry and Industrials sector, Yankey Engineering Co's GF Score distribution charts can be found below:
* The bar in red indicates where Yankey Engineering Co's GF Score falls into.
Yankey Engineering Co (TPE:6691) has a GF Score of 99 as of Jul. 09, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Yankey Engineering Co and its competitors. This is 68% above median its historical median of 59.00. Over the past decade, Yankey Engineering Co's GF Score has ranged from 12.00 to 98.00.
Is Yankey Engineering Co's GF Score too high?
Yankey Engineering Co's current GF Score of 99 is 68% above median its 10-year median of 59.00. Over the past 10 years, this metric has ranged from a low of 12.00 to a high of 98.00. Overall, Yankey Engineering Co has a GF Score™ of 99/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's GF Score compare to PWR and FIX?
Yankey Engineering Co's GF Score of 99 can be compared against companies in the Construction industry. Historically, Yankey Engineering Co's own GF Score has ranged from 12.00 to 98.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Construction company?
A good GF Score depends on the Construction industry context. However, GF Score 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 GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Yankey Engineering Co and its competitors. Yankey Engineering Co's current GF Score is 99, which is 68% above median its own 10-year median of 59.00. 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$591.76, compared to a current price of NT$708.00 — trading 19.6% above its estimated fair value. The current GF Score is 99, which is 68% above median its 10-year median of 59.00. Yankey Engineering Co's overall GF Score™ is 99/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Yankey Engineering Co (TPE:6691), the current GF Score is 99 as of Jul. 09, 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$708.00 is trading 19.6% above its estimated GF Value™ of NT$591.76.
GuruFocus considers Yankey Engineering Co to be Modestly Overvalued.
Key valuation signals for TPE:6691:
GF Score: 99 (68% above median its 10-year median of 59.00)
GF Value™: NT$591.76 vs. price of NT$708.00 (19.6% above fair value)
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.
99GF Score
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