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.
Master Drilling Group has the GF Score of 83, which implies that the company
might have
Good 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 Master Drilling Group
might have
Good outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Master Drilling Group (JSE:MDI) 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.
Master Drilling Group GF Score Related Terms
JSE:MDI vs PWR, FIX, EME: GF Score Comparison
For the Engineering & Construction subindustry, Master Drilling Group'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.
Master Drilling Group GF Score vs Construction Industry
For the Construction industry and Industrials sector, Master Drilling Group's GF Score distribution charts can be found below:
* The bar in red indicates where Master Drilling Group's GF Score falls into.
Master Drilling Group (JSE:MDI) has a GF Score of 83 as of Jul. 15, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Master Drilling Group and its competitors. This is near median its historical median of 82.00. Over the past decade, Master Drilling Group's GF Score has ranged from 40.00 to 99.00.
Is Master Drilling Group's GF Score too high?
Master Drilling Group's current GF Score of 83 is near median its 10-year median of 82.00. Over the past 10 years, this metric has ranged from a low of 40.00 to a high of 99.00. Overall, Master Drilling Group has a GF Score™ of 83/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Master Drilling Group's GF Score compare to PWR and FIX?
Master Drilling Group's GF Score of 83 can be compared against companies in the Construction industry. Historically, Master Drilling Group's own GF Score has ranged from 40.00 to 99.00 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 Master Drilling Group and its competitors. Master Drilling Group's current GF Score is 83, which is near median its own 10-year median of 82.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Master Drilling Group stock overvalued right now?
Based on GuruFocus' analysis, Master Drilling Group (JSE:MDI) is currently considered Modestly Overvalued. The stock's GF Value™ is R14.19, compared to a current price of R15.80 — trading 11.3% above its estimated fair value. The current GF Score is 83, which is near median its 10-year median of 82.00. Master Drilling Group's overall GF Score™ is 83/100 with 2 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 Master Drilling Group (JSE:MDI), the current GF Score is 83 as of Jul. 15, 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 Master Drilling Group (JSE:MDI) Overvalued in 2026?
Based on GuruFocus' analysis, Master Drilling Group stock appears to be overvalued.
The current stock price of R15.80 is trading 11.3% above its estimated GF Value™ of R14.19.
GuruFocus considers Master Drilling Group to be Modestly Overvalued.
Key valuation signals for JSE:MDI:
GF Score: 83 (near median its 10-year median of 82.00)
GF Value™: R14.19 vs. price of R15.80 (11.3% above fair value)
No single metric tells the full story. See the JSE:MDI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Master Drilling Group Ltd is an investment holding company. The company along with its subsidiary companies is engaged in providing specialized drilling services and solutions that enforce business rules, optimize output, safeguard miners, protect/manage assets and locate missing persons for blue-chip and mid-tier companies in the mining, civil engineering, construction and hydroelectric power sectors across a number of commodities and geographies. Its activities include the Sale of industrial products, Raise boring, Support services, Slim drilling, and New rock boring technology.
83GF Score
Get the complete analysis for JSE:MDI
GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
JSE:MDI has been successfully added to your 
