AMETEK (STU:AK1) Cyclically Adjusted PB Ratio: 6.86 (As of Sep. 10, 2026) — Near 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.

STU:AK1 AMETEK Inc STU:AK1
96 GF Score
Price €203.10
GF Value €182.66
Valuation Modestly Overvalued
! 5 Warning Signs
View Full Analysis

What is AMETEK Cyclically Adjusted PB Ratio?

AMETEK STU:AK1 -0.78% 96 Cyclically Adjusted PB Ratio is 6.86 as of Sep. 10, 2026, which is 7% above its 10-year median of 6.41. GuruFocus rates STU:AK1 with a GF Score™ of 96/100 and a GF Value™ of €182.66 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 2,098 Industrial Products companies, AMETEK ranks worse than 86.46% on this metric.

As of today (2026-09-10), AMETEK's current share price is €203.10. AMETEK's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €29.60. AMETEK's Cyclically Adjusted PB Ratio for today is 6.86.

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

STU:AK1' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 4.37   Med: 6.41   Max: 8.16
Current: 7

During the past years, AMETEK's highest Cyclically Adjusted PB Ratio was 8.16. The lowest was 4.37. And the median was 6.41.

STU:AK1's Cyclically Adjusted PB Ratio is ranked worse than
86.46% of 2098 companies
in the Industrial Products industry
Industry Median: 2.145 vs STU:AK1: 7.00

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.

AMETEK's adjusted book value per share data for the three months ended in Jun. 2026 was €42.634. 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 €29.60 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


AMETEK  (STU:AK1) 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.


AMETEK Cyclically Adjusted PB Ratio Related Terms


AMETEK Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for AMETEK'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.

AMETEK Cyclically Adjusted PB Ratio Chart

AMETEK 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 7.68 6.28 6.59 6.44 6.54

AMETEK Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 6.05 6.11 6.54 6.56 7.16

STU:AK1 vs ROK, CMI, IR: Cyclically Adjusted PB Ratio Comparison

For the Specialty Industrial Machinery subindustry, AMETEK'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.


AMETEK Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, AMETEK's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:AK1
96GF Score
AMETEK Inc STU:AK1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

AMETEK 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.

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

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=203.10/29.60
=6.86

* 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.

AMETEK's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=42.634/333.9520*333.9520
=42.634

Current CPI (Jun. 2026) = 333.9520.

AMETEK Quarterly Data

Book Value per Share CPI Adj_Book
201609 12.987 241.428 17.964
201612 13.459 241.432 18.617
201703 13.838 243.801 18.955
201706 13.852 244.955 18.885
201709 13.672 246.819 18.499
201712 14.721 246.524 19.942
201803 14.727 249.554 19.708
201806 16.013 251.989 21.221
201809 16.659 252.439 22.038
201812 16.418 251.233 21.824
201903 17.335 254.202 22.773
201906 18.087 256.143 23.581
201909 19.328 256.759 25.139
201912 20.097 256.974 26.117
202003 21.031 258.115 27.210
202006 21.217 257.797 27.485
202009 21.050 260.280 27.008
202012 21.215 260.474 27.200
202103 22.277 264.877 28.086
202106 22.772 271.696 27.990
202109 24.099 274.310 29.339
202112 26.252 278.802 31.445
202203 27.226 287.504 31.625
202206 28.639 296.311 32.277
202209 31.369 296.808 35.295
202212 30.679 296.797 34.520
202303 31.462 301.836 34.810
202306 32.331 305.109 35.387
202309 33.869 307.789 36.748
202312 34.667 306.746 37.742
202403 35.685 312.332 38.155
202406 37.124 314.175 39.461
202409 37.200 315.301 39.400
202412 39.969 315.605 42.293
202503 39.967 319.799 41.736
202506 38.999 322.561 40.376
202509 38.961 324.800 40.059
202512 39.631 324.054 40.842
202603 41.234 330.213 41.701
202606 42.634 333.952 42.634

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 6.86 mean?
AMETEK (STU:AK1) has a Cyclically Adjusted PB Ratio of 6.86 as of Sep. 10, 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 AMETEK and its competitors. This is near median its historical median of 6.41. Over the past decade, AMETEK's Cyclically Adjusted PB Ratio has ranged from 4.37 to 8.16. According to the industry distribution chart, AMETEK ranks #1814 out of 2098 companies in the Industrial Products industry, placing it in the top 86.5%.
Is AMETEK's Cyclically Adjusted PB Ratio too high?
AMETEK's current Cyclically Adjusted PB Ratio of 6.86 is near median its 10-year median of 6.41. Over the past 10 years, this metric has ranged from a low of 4.37 to a high of 8.16. The Industrial Products industry median Cyclically Adjusted PB Ratio is 2.15. AMETEK's value of 6.86 is 219.8% above this industry median. Based on the distribution chart, AMETEK ranks #1814 out of 2098 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, AMETEK has a GF Score™ of 96/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AMETEK's Cyclically Adjusted PB Ratio compare to ROK and CMI?
According to the Industrial Products industry distribution chart, AMETEK ranks #1814 out of 2098 companies for Cyclically Adjusted PB Ratio. This places AMETEK in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.15. AMETEK's value of 6.86 is 219.8% above this benchmark. Historically, AMETEK's own Cyclically Adjusted PB Ratio has ranged from 4.37 to 8.16 over the past decade. While the company's 10-year median is 6.41 vs. the industry median of 2.15, AMETEK 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 an Industrial Products company?
The median Cyclically Adjusted PB Ratio among Industrial Products companies is 2.15, based on 2,098 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. AMETEK's current Cyclically Adjusted PB Ratio of 6.86 is 219.8% 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 AMETEK and its competitors. For the Industrial Products industry, the median Cyclically Adjusted PB Ratio is 2.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. AMETEK's current Cyclically Adjusted PB Ratio is 6.86, which is near median its own 10-year median of 6.41. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AMETEK stock overvalued right now?
Based on GuruFocus' analysis, AMETEK (STU:AK1) is currently considered Modestly Overvalued. The stock's GF Value™ is €182.66, compared to a current price of €203.10 — trading 11.2% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 6.86, which is near median its 10-year median of 6.41 and 219.8% above the Industrial Products industry median of 2.15. AMETEK's overall GF Score™ is 96/100 with 5 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 AMETEK (STU:AK1), the current Cyclically Adjusted PB Ratio is 6.86 as of Sep. 10, 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 AMETEK (STU:AK1) Overvalued in 2026?

Based on GuruFocus' analysis, AMETEK stock appears to be overvalued. The current stock price of €203.10 is trading 11.2% above its estimated GF Value™ of €182.66. GuruFocus considers AMETEK to be Modestly Overvalued.

Key valuation signals for STU:AK1:

  • Cyclically Adjusted PB Ratio: 6.86 (near median its 10-year median of 6.41)
  • GF Value™: €182.66 vs. price of €203.10 (11.2% above fair value)
  • GF Score™: 96/100 with 5 warning signs
  • Industry Position: 219.8% above the Industrial Products median (#1814 of 2098)

No single metric tells the full story. See the STU:AK1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


AMETEK Business Description

Address 1100 Cassatt Road, Berwyn, PA, USA, 19312-1177
Founded in 1930 and transformed over the decades through the acquisition of dozens of esteemed brands, Ametek owns more than 40 autonomous industrial businesses operating across research, aerospace, energy, medical, and manufacturing. Ametek segments its business into two operating groups: the electronic instruments group and the electromechanical group. The EIG sells a broad portfolio of analytical, test, and measurement instruments, while the EMG sells highly engineered components, interconnects, and specialty metals. The company emphasizes product differentiation and market leadership in the niche markets it operates in.
96GF Score

Get the complete analysis for STU:AK1

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

€203.10
Price
€182.66
GF Value