Chang Jia M&E Engineering (ROCO:4550) GF Score: 58/100 (As of Jul. 16, 2026) — 17% Below Median

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:4550 Chang Jia M&E Engineering Corp ROCO:4550
58 GF Score
Price NT$25.40
GF Value NT$17.65
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Chang Jia M&E Engineering GF Score?

Chang Jia M&E Engineering ROCO:4550 -0.20% 58 GF Score is 58 as of Jul. 16, 2026, which is 17% below its 10-year median of 70.00. GuruFocus rates ROCO:4550 with a GF Score™ of 58/100 and a GF Value™ of NT$17.65 (Significantly Overvalued). The stock has 5 warning signs investors should review.

Chang Jia M&E Engineering has the GF Score of 58, which implies that the company might have Poor future performance 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:

1. Financial Strength : 8/10
2. Profitability Rank : 6/10
3. Growth Rank : 2/10
4. GF Value Rank : 5/10
5. Momentum Rank : 1/10

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 Chang Jia M&E Engineering might have Poor future performance potential.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.


Chang Jia M&E Engineering  (ROCO:4550) 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)
91 - 100Highest outperformance potential
81 - 90Good outperformance potential
71 - 80Likely to have average performance
51 - 70Poor future performance potential
0 - 50Worst future performance potential, or not enough data

(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.


Chang Jia M&E Engineering GF Score Related Terms


ROCO:4550 vs PWR, FIX, EME: GF Score Comparison

For the Engineering & Construction subindustry, Chang Jia M&E Engineering'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.


Chang Jia M&E Engineering GF Score vs Construction Industry

For the Construction industry and Industrials sector, Chang Jia M&E Engineering's GF Score distribution charts can be found below:

* The bar in red indicates where Chang Jia M&E Engineering's GF Score falls into.


ROCO:4550
58GF Score
Chang Jia M&E Engineering Corp ROCO:4550
GF Score is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Score →
What does a GF Score of 58 mean?
Chang Jia M&E Engineering (ROCO:4550) has a GF Score of 58 as of Jul. 16, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Chang Jia M&E Engineering and its competitors. This is 17% below median its historical median of 70.00. Over the past decade, Chang Jia M&E Engineering's GF Score has ranged from 14.00 to 91.00.
Is Chang Jia M&E Engineering's GF Score too high?
Chang Jia M&E Engineering's current GF Score of 58 is 17% below median its 10-year median of 70.00. Over the past 10 years, this metric has ranged from a low of 14.00 to a high of 91.00. Overall, Chang Jia M&E Engineering has a GF Score™ of 58/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Chang Jia M&E Engineering's GF Score compare to PWR and FIX?
Chang Jia M&E Engineering's GF Score of 58 can be compared against companies in the Construction industry. Historically, Chang Jia M&E Engineering's own GF Score has ranged from 14.00 to 91.00 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 Chang Jia M&E Engineering and its competitors. Chang Jia M&E Engineering's current GF Score is 58, which is 17% below median its own 10-year median of 70.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Chang Jia M&E Engineering stock overvalued right now?
Based on GuruFocus' analysis, Chang Jia M&E Engineering (ROCO:4550) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$17.65, compared to a current price of NT$25.40 — trading 43.9% above its estimated fair value. The current GF Score is 58, which is 17% below median its 10-year median of 70.00. Chang Jia M&E Engineering's overall GF Score™ is 58/100 with 5 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 Chang Jia M&E Engineering (ROCO:4550), the current GF Score is 58 as of Jul. 16, 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 Chang Jia M&E Engineering (ROCO:4550) Overvalued in 2026?

Based on GuruFocus' analysis, Chang Jia M&E Engineering stock appears to be overvalued. The current stock price of NT$25.40 is trading 43.9% above its estimated GF Value™ of NT$17.65. GuruFocus considers Chang Jia M&E Engineering to be Significantly Overvalued.

Key valuation signals for ROCO:4550:

  • GF Score: 58 (17% below median its 10-year median of 70.00)
  • GF Value™: NT$17.65 vs. price of NT$25.40 (43.9% above fair value)
  • GF Score™: 58/100 with 5 warning signs

No single metric tells the full story. See the ROCO:4550 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Chang Jia M&E Engineering Business Description

Address Number 1, Lane 10, Jihu Road, 8th Floor, Neihu District, Taipei, TWN, 114
Chang Jia M&E Engineering Corp is a Taiwan-based company engaged in the planning, design and engineering contracting of electrical, drainage and air conditioning equipment for various commercial buildings and factories, as well as the operation of sports centers and the import and export of the above-mentioned equipment.
58GF Score

Get the complete analysis for ROCO:4550

GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$25.40
Price
NT$17.65
GF Value