Allegion (MIL:1ALLE) Cyclically Adjusted PB Ratio: 10.71 (As of Jul. 15, 2026) — 40% 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.

MIL:1ALLE Allegion PLC MIL:1ALLE
26 GF Score
Price €118.70
GF Value €133.13
! 2 Warning Signs
View Full Analysis

What is Allegion Cyclically Adjusted PB Ratio?

Allegion MIL:1ALLE -1.82% 26 Cyclically Adjusted PB Ratio is 10.71 as of Jul. 15, 2026, which is 40% below its 10-year median of 17.89. GuruFocus rates MIL:1ALLE with a GF Score™ of 26/100 and a GF Value™ of €133.13. The stock has 2 warning signs investors should review. Among 730 Business Services companies, Allegion ranks worse than 95.89% on this metric.

As of today (2026-07-15), Allegion's current share price is €118.70. Allegion's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €11.08. Allegion's Cyclically Adjusted PB Ratio for today is 10.71.

The historical rank and industry rank for Allegion's Cyclically Adjusted PB Ratio or its related term are showing as below:

MIL:1ALLE' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 11.08   Med: 17.89   Max: 22.64
Current: 12.04

During the past years, Allegion's highest Cyclically Adjusted PB Ratio was 22.64. The lowest was 11.08. And the median was 17.89.

MIL:1ALLE's Cyclically Adjusted PB Ratio is ranked worse than
95.89% of 730 companies
in the Business Services industry
Industry Median: 1.565 vs MIL:1ALLE: 12.04

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Allegion's adjusted book value per share data for the three months ended in Mar. 2026 was €21.150. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €11.08 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Allegion  (MIL:1ALLE) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Allegion Cyclically Adjusted PB Ratio Related Terms


Allegion Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Allegion's Cyclically Adjusted PB 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.

Allegion Cyclically Adjusted PB Ratio Chart

Allegion Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 19.37 19.85 15.93 15.05

Allegion Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 14.92 15.46 17.90 15.05 12.82

MIL:1ALLE vs MSA, ADT, BRC: Cyclically Adjusted PB Ratio Comparison

For the Security & Protection Services subindustry, Allegion's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Business Services Industry

For the Business Services industry and Industrials sector, Allegion's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Allegion's Cyclically Adjusted PB Ratio falls into.


MIL:1ALLE
26GF Score
Allegion PLC MIL:1ALLE
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Allegion Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Allegion's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=118.70/11.08
=10.71

* 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 Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Allegion's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=21.15/127.8300*127.8300
=21.150

Current CPI (Mar. 2026) = 127.8300.

Allegion Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.280 101.072 1.619
201609 1.409 100.274 1.796
201612 1.127 99.676 1.445
201703 1.486 100.374 1.892
201706 2.486 100.673 3.157
201709 3.242 100.474 4.125
201712 3.570 100.075 4.560
201803 3.895 100.573 4.951
201806 4.560 101.072 5.767
201809 5.382 101.371 6.787
201812 6.047 100.773 7.671
201903 5.960 101.670 7.494
201906 6.255 102.168 7.826
201909 6.687 102.268 8.358
201912 7.351 102.068 9.206
202003 5.999 102.367 7.491
202006 6.523 101.769 8.193
202009 7.586 101.072 9.594
202012 7.474 101.072 9.453
202103 6.788 102.367 8.476
202106 7.249 103.364 8.965
202109 8.190 104.859 9.984
202112 7.615 106.653 9.127
202203 7.635 109.245 8.934
202206 8.367 112.779 9.484
202209 9.098 113.504 10.246
202212 10.120 115.436 11.207
202303 11.063 117.609 12.024
202306 11.973 119.662 12.790
202309 13.151 120.749 13.922
202312 13.815 120.749 14.625
202403 14.213 120.990 15.016
202406 15.197 122.318 15.882
202409 16.284 121.594 17.119
202412 16.615 122.439 17.347
202503 17.272 123.405 17.891
202506 18.043 124.492 18.527
202509 19.278 124.810 19.744
202512 20.516 125.770 20.852
202603 21.150 127.830 21.150

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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.

What does a Cyclically Adjusted PB Ratio of 10.71 mean?
Allegion (MIL:1ALLE) has a Cyclically Adjusted PB Ratio of 10.71 as of Jul. 15, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Allegion and its competitors. This is 40% below median its historical median of 17.89. Over the past decade, Allegion's Cyclically Adjusted PB Ratio has ranged from 11.08 to 22.64. According to the industry distribution chart, Allegion ranks #700 out of 730 companies in the Business Services industry, placing it in the top 95.9%.
Is Allegion's Cyclically Adjusted PB Ratio too high?
Allegion's current Cyclically Adjusted PB Ratio of 10.71 is 40% below median its 10-year median of 17.89. Over the past 10 years, this metric has ranged from a low of 11.08 to a high of 22.64. The Business Services industry median Cyclically Adjusted PB Ratio is 1.57. Allegion's value of 10.71 is 584.3% above this industry median. Based on the distribution chart, Allegion ranks #700 out of 730 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, Allegion has a GF Score™ of 26/100, reflecting its overall financial health beyond just this single metric.
How does Allegion's Cyclically Adjusted PB Ratio compare to MSA and ADT?
According to the Business Services industry distribution chart, Allegion ranks #700 out of 730 companies for Cyclically Adjusted PB Ratio. This places Allegion in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.57. Allegion's value of 10.71 is 584.3% above this benchmark. Historically, Allegion's own Cyclically Adjusted PB Ratio has ranged from 11.08 to 22.64 over the past decade. While the company's 10-year median is 17.89 vs. the industry median of 1.57, 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 Cyclically Adjusted PB Ratio for a Business Services company?
The median Cyclically Adjusted PB Ratio among Business Services companies is 1.57, based on 730 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Allegion's current Cyclically Adjusted PB Ratio of 10.71 is 584.3% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Allegion and its competitors. For the Business Services industry, the median Cyclically Adjusted PB Ratio is 1.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Allegion's current Cyclically Adjusted PB Ratio is 10.71, which is 40% below median its own 10-year median of 17.89. 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?
Allegion (MIL:1ALLE) has a current Cyclically Adjusted PB Ratio of 10.71. The stock's GF Value™ is €133.13, compared to a current price of €118.70 — trading 10.8% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 10.71, which is 40% below median its 10-year median of 17.89 and 584.3% above the Business Services industry median of 1.57. Allegion's overall GF Score™ is 26/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Allegion (MIL:1ALLE), the current Cyclically Adjusted PB Ratio is 10.71 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 Allegion (MIL:1ALLE) Overvalued in 2026?

Based on GuruFocus' analysis, Allegion stock appears to be undervalued. The current stock price of €118.70 is trading 10.8% below its estimated GF Value™ of €133.13.

Key valuation signals for MIL:1ALLE:

  • Cyclically Adjusted PB Ratio: 10.71 (40% below median its 10-year median of 17.89)
  • GF Value™: €133.13 vs. price of €118.70 (10.8% below fair value)
  • GF Score™: 26/100 with 2 warning signs
  • Industry Position: 584.3% above the Business Services median (#700 of 730)

No single metric tells the full story. See the MIL:1ALLE stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Allegion Business Description

Other Exchanges ALLE:USA0Y5C:UK60A:Germany
Address The Capel Building, Unit No. 233, Mary\'s Abbey, Dublin 7, Dublin, IRL, D07 X324
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.
26GF Score

Get the complete analysis for MIL:1ALLE

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

€118.70
Price
€133.13
GF Value