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.
AllegionMEX:ALLE N 79 Shiller PE Ratio is 37.06 as of Sep. 08, 2026, which is 27% above its 10-year median of 29.08. GuruFocus rates MEX:ALLE N with a GF Score™ of 79/100 and a GF Value™ of MXN2,846.66 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 549 Business Services companies, Allegion ranks worse than 70.31% on this metric.
As of today (2026-09-08), Allegion's current share price is MXN2839.25. Allegion's E10 for the quarter that ended in Jun. 2026 was MXN76.61. Allegion's Shiller PE Ratio for today is 37.06.
The historical rank and industry rank for Allegion's Shiller PE Ratio or its related term are showing as below:
MEX:ALLE N'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 22.2 Med: 29.08 Max: 35.16
Current: 27.17
During the past years, Allegion's highest Shiller PE Ratio was 35.16. The lowest was 22.20. And the median was 29.08.
MEX:ALLE N's Shiller PE Ratio is ranked worse than 70.31% of 549
companies
in the Business Services industry
Industry Median: 19.31
vs MEX:ALLE N: 27.17
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Allegion's adjusted earnings per share data for the three months ended in Jun. 2026 was MXN37.515. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is MXN76.61 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Allegion (MEX:ALLE N) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Allegion Shiller PE Ratio Related Terms
Allegion Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Allegion's Shiller PE Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
MEX:ALLE N vs MSA, ADT, BCO: Shiller PE Ratio Comparison
For the Security & Protection Services subindustry, Allegion's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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.
Allegion Shiller PE Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, Allegion's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Allegion's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
Allegion's Shiller PE Ratio for today is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Allegion's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Allegion's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Allegion (MEX:ALLE N) has a Shiller PE Ratio of 37.06 as of Sep. 08, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Allegion and its competitors. This is 27% above median its historical median of 29.08. Over the past decade, Allegion's Shiller PE Ratio has ranged from 22.20 to 35.16. According to the industry distribution chart, Allegion ranks #386 out of 549 companies in the Business Services industry, placing it in the top 70.3%.
Is Allegion's Shiller PE Ratio too high?
Allegion's current Shiller PE Ratio of 37.06 is 27% above median its 10-year median of 29.08. Over the past 10 years, this metric has ranged from a low of 22.20 to a high of 35.16. The Business Services industry median Shiller PE Ratio is 19.31. Allegion's value of 37.06 is 91.9% above this industry median. Based on the distribution chart, Allegion ranks #386 out of 549 companies in the Business Services industry, which is below the industry midpoint. Overall, Allegion has a GF Score™ of 79/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Allegion's Shiller PE Ratio compare to MSA and ADT?
According to the Business Services industry distribution chart, Allegion ranks #386 out of 549 companies for Shiller PE Ratio. This places Allegion in the lower half of its industry. The industry median Shiller PE Ratio is 19.31. Allegion's value of 37.06 is 91.9% above this benchmark. Historically, Allegion's own Shiller PE Ratio has ranged from 22.20 to 35.16 over the past decade. While the company's 10-year median is 29.08 vs. the industry median of 19.31, Allegion 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 Shiller PE Ratio for a Business Services company?
The median Shiller PE Ratio among Business Services companies is 19.31, based on 549 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Allegion's current Shiller PE Ratio of 37.06 is 91.9% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Allegion and its competitors. For the Business Services industry, the median Shiller PE Ratio is 19.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Allegion's current Shiller PE Ratio is 37.06, which is 27% above median its own 10-year median of 29.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Allegion stock overvalued right now?
Based on GuruFocus' analysis, Allegion (MEX:ALLE N) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN2,846.66, compared to a current price of MXN2,839.25 — trading 0.3% below its estimated fair value. The current Shiller PE Ratio is 37.06, which is 27% above median its 10-year median of 29.08 and 91.9% above the Business Services industry median of 19.31. Allegion's overall GF Score™ is 79/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Allegion (MEX:ALLE N), the current Shiller PE Ratio is 37.06 as of Sep. 08, 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 Allegion (MEX:ALLE N) Overvalued in 2026?
Based on GuruFocus' analysis, Allegion stock appears to be undervalued.
The current stock price of MXN2,839.25 is trading 0.3% below its estimated GF Value™ of MXN2,846.66.
GuruFocus considers Allegion to be Significantly Overvalued.
Key valuation signals for MEX:ALLE N:
Shiller PE Ratio: 37.06 (27% above median its 10-year median of 29.08)
GF Value™: MXN2,846.66 vs. price of MXN2,839.25 (0.3% below fair value)
Industry Position: 91.9% above the Business Services median (#386 of 549)
No single metric tells the full story. See the MEX:ALLE N stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Allegion is a global security products company with a portfolio of leading brands such as Schlage, Von Duprin, and LCN. The Ireland-domiciled company was created via a spinoff transaction from Ingersoll-Rand in December 2013. In fiscal 2024, Allegion generated over 75% of sales in the United States. The company primarily competes with Sweden-based Assa Abloy, Switzerland-based Dormakaba, and US-based Fortune Brands Innovations.
79GF Score
Get the complete analysis for MEX:ALLE N
Shiller PE Ratio 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:ALLE N has been successfully added to your 
