West Pharmaceutical Services has the GF Score of 95, 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 West Pharmaceutical Services
might have
Highest outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
West Pharmaceutical Services (MEX:WST) 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.
West Pharmaceutical Services GF Score Related Terms
MEX:WST vs RMD, MDLN, COO: GF Score Comparison
For the Medical Instruments & Supplies subindustry, West Pharmaceutical Services'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.
West Pharmaceutical Services GF Score vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, West Pharmaceutical Services's GF Score distribution charts can be found below:
* The bar in red indicates where West Pharmaceutical Services's GF Score falls into.
West Pharmaceutical Services (MEX:WST) has a GF Score of 95 as of Jun. 30, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on West Pharmaceutical Services and its competitors. This is 19% above median its historical median of 80.00. Over the past decade, West Pharmaceutical Services' GF Score has ranged from 61.00 to 98.00.
Is West Pharmaceutical Services' GF Score too high?
West Pharmaceutical Services' current GF Score of 95 is 19% above median its 10-year median of 80.00. Over the past 10 years, this metric has ranged from a low of 61.00 to a high of 98.00. Overall, West Pharmaceutical Services has a GF Score™ of 95/100, reflecting its overall financial health beyond just this single metric.
How does West Pharmaceutical Services' GF Score compare to RMD and MDLN?
West Pharmaceutical Services' GF Score of 95 can be compared against companies in the Medical Devices & Instruments industry. Historically, West Pharmaceutical Services' own GF Score has ranged from 61.00 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 Medical Devices & Instruments company?
A good GF Score depends on the Medical Devices & Instruments 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 West Pharmaceutical Services and its competitors. West Pharmaceutical Services's current GF Score is 95, which is 19% above median its own 10-year median of 80.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is West Pharmaceutical Services stock overvalued right now?
West Pharmaceutical Services (MEX:WST) has a current GF Score of 95. The stock's GF Value™ is MXN5,212.55, compared to a current price of MXN5,112.51 — trading 1.9% below its estimated fair value. The current GF Score is 95, which is 19% above median its 10-year median of 80.00. West Pharmaceutical Services' overall GF Score™ is 95/100 with 9 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 West Pharmaceutical Services (MEX:WST), the current GF Score is 95 as of Jun. 30, 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 West Pharmaceutical Services (MEX:WST) Overvalued in 2026?
Based on GuruFocus' analysis, West Pharmaceutical Services stock appears to be undervalued.
The current stock price of MXN5,112.51 is trading 1.9% below its estimated GF Value™ of MXN5,212.55.
Key valuation signals for MEX:WST:
GF Score: 95 (19% above median its 10-year median of 80.00)
GF Value™: MXN5,212.55 vs. price of MXN5,112.51 (1.9% below fair value)
No single metric tells the full story. See the MEX:WST stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
West Pharmaceutical Services is based in Pennsylvania and is a key supplier to firms in the pharmaceutical, biotechnology, and generic drug industries. West sells elastomer-based packaging components (including stoppers, seals, and plungers), nonglass containment solutions, and auto-injectors for injectable drugs, which include large-molecule biologics, peptides such as GLP-1 receptor agonists, and small-molecule drugs. The company reports in two segments: proprietary products (about 80% of total revenue) and contract-manufactured products (about 20% of total revenue). It generates approximately 55% of its revenue from international markets and 45% from the United States.
95GF Score
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