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.
West Pharmaceutical ServicesMEX:WST 94 3-Year Book Growth Rate is 6.80% as of Jun. 2026, which is 24% below its 10-year median of 8.90. GuruFocus rates MEX:WST with a GF Score™ of 94/100 and a GF Value™ of MXN5,282.62. The stock has 9 warning signs investors should review. Among 757 Medical Devices & Instruments companies, West Pharmaceutical Services ranks better than 65.79% on this metric.
During the past 12 months, West Pharmaceutical Services's average Book Value per Share Growth Rate was 4.30% per year.
During the past 3 years, the average Book Value per Share Growth Rate was 6.80% per year.
During the past 5 years, the average Book Value per Share Growth Rate was 10.20% per year.
During the past 10 years, the average Book Value per Share Growth Rate was 12.90% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the average Book Value per Share growth rate.
During the past 13 years, the highest 3-Year average Book Value per Share Growth Rate of West Pharmaceutical Services was 19.50% per year. The lowest was -7.00% per year. And the median was 8.90% per year.
West Pharmaceutical Services (MEX:WST) 3-Year Book Growth Rate Explanation
Book Value per Share is the ratio of equity available to common shareholders divided by the shares outstanding. Book value per share effectively indicates a firm's net asset value on a per-share basis. It can be used by investors to gauge whether a stock price is undervalued by comparing it to the firm's market value per share. Theoretically, it is what the shareholders will receive if the company is liquidated.
West Pharmaceutical Services 3-Year Book Growth Rate Related Terms
MEX:WST vs MDLN, SOLV, COO: 3-Year Book Growth Rate Comparison
For the Medical Instruments & Supplies subindustry, West Pharmaceutical Services's 3-Year Book Growth Rate, along with its competitors' market caps and 3-Year Book Growth Rate 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 3-Year Book Growth Rate vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, West Pharmaceutical Services's 3-Year Book Growth Rate distribution charts can be found below:
* The bar in red indicates where West Pharmaceutical Services's 3-Year Book Growth Rate falls into.
West Pharmaceutical Services 3-Year Book Growth Rate Calculation
This is the 3-year average growth rate of Book Value per Share. The growth rate is calculated using exponential compounding based on the latest four year annual data.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the average Book Value per Share growth rate.
What does a 3-Year Book Growth Rate of 6.80% mean?
West Pharmaceutical Services (MEX:WST) has a 3-Year Book Growth Rate of 6.80% as of Jun. 2026. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for West Pharmaceutical Services and its competitors. This is 24% below median its historical median of 8.90. According to the industry distribution chart, West Pharmaceutical Services ranks #259 out of 757 companies in the Medical Devices & Instruments industry, placing it in the top 34.2%.
Is West Pharmaceutical Services' 3-Year Book Growth Rate too high?
West Pharmaceutical Services' current 3-Year Book Growth Rate of 6.80% is 24% below median its 10-year median of 8.90. The Medical Devices & Instruments industry median 3-Year Book Growth Rate is 2.30. West Pharmaceutical Services' value of 6.80% is 195.7% above this industry median. Based on the distribution chart, West Pharmaceutical Services ranks #259 out of 757 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, West Pharmaceutical Services has a GF Score™ of 94/100, reflecting its overall financial health beyond just this single metric.
How does West Pharmaceutical Services' 3-Year Book Growth Rate compare to MDLN and SOLV?
According to the Medical Devices & Instruments industry distribution chart, West Pharmaceutical Services ranks #259 out of 757 companies for 3-Year Book Growth Rate. This puts West Pharmaceutical Services in the upper half of its industry. The industry median 3-Year Book Growth Rate is 2.30. West Pharmaceutical Services' value of 6.80% is 195.7% above this benchmark. While the company's 10-year median is 8.90 vs. the industry median of 2.30, West Pharmaceutical Services 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 3-Year Book Growth Rate for a Medical Devices & Instruments company?
The median 3-Year Book Growth Rate among Medical Devices & Instruments companies is 2.30, based on 757 companies in the industry. Companies in the top quartile (top 25%) have a 3-Year Book Growth Rate significantly above this median, while those in the bottom quartile fall well below. However, 3-Year Book Growth Rate should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. West Pharmaceutical Services's current 3-Year Book Growth Rate of 6.80% is 195.7% 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 3-Year Book Growth Rate mean?
A high 3-Year Book Growth Rate can signal that a stock is expensive relative to its fundamentals. 3-Year Book Growth Rate is the 3-year average growth rate of Book Value per Share. View historical data for West Pharmaceutical Services and its competitors. For the Medical Devices & Instruments industry, the median 3-Year Book Growth Rate is 2.30 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. West Pharmaceutical Services's current 3-Year Book Growth Rate is 6.80%, which is 24% below median its own 10-year median of 8.90. 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 3-Year Book Growth Rate of 6.80%. The stock's GF Value™ is MXN5,282.62, compared to a current price of MXN5,112.51 — trading 3.2% below its estimated fair value. The current 3-Year Book Growth Rate is 6.80%, which is 24% below median its 10-year median of 8.90 and 195.7% above the Medical Devices & Instruments industry median of 2.30. West Pharmaceutical Services' overall GF Score™ is 94/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 3-Year Book Growth Rate calculated?
3-Year Book Growth Rate is calculated from a company's financial statements. For West Pharmaceutical Services (MEX:WST), the current 3-Year Book Growth Rate is 6.80% as of Jun. 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 3.2% below its estimated GF Value™ of MXN5,282.62.
Key valuation signals for MEX:WST:
3-Year Book Growth Rate: 6.80% (24% below median its 10-year median of 8.90)
GF Value™: MXN5,282.62 vs. price of MXN5,112.51 (3.2% below fair value)
Industry Position: 195.7% above the Medical Devices & Instruments median (#259 of 757)
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.
94GF Score
Get the complete analysis for MEX:WST
3-Year Book Growth Rate is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
MEX:WST has been successfully added to your 
