Amphenol (TSX:APH) Cyclically Adjusted PB Ratio: (As of Jul. 19, 2026)

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.

TSX:APH Amphenol Corp TSX:APH
76 GF Score
Price C$22.60
GF Value C$21.23
Valuation Fairly Valued
! 4 Warning Signs
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What is Amphenol Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


Amphenol  (TSX:APH) 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.


Amphenol Cyclically Adjusted PB Ratio Related Terms


Amphenol Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Amphenol'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.

Amphenol Cyclically Adjusted PB Ratio Chart

Amphenol 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 12.74 9.57 11.04 13.68 23.10

Amphenol 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 12.43 18.04 21.78 23.10 20.54

TSX:APH vs GLW, TEL, FLEX: Cyclically Adjusted PB Ratio Comparison

For the Electronic Components subindustry, Amphenol'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.


Amphenol Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Amphenol's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TSX:APH
76GF Score
Amphenol Corp TSX:APH
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Amphenol 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.

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

For example, Amphenol'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)
=15.598/330.2130*330.2130
=15.598

Current CPI (Mar. 2026) = 330.2130.

Amphenol Quarterly Data

Book Value per Share CPI Adj_Book
201606 3.691 241.018 5.057
201609 3.939 241.428 5.388
201612 3.975 241.432 5.437
201703 4.059 243.801 5.498
201706 4.220 244.955 5.689
201709 4.094 246.819 5.477
201712 4.166 246.524 5.580
201803 4.189 249.554 5.543
201806 4.118 251.989 5.396
201809 4.336 252.439 5.672
201812 4.520 251.233 5.941
201903 4.625 254.202 6.008
201906 4.637 256.143 5.978
201909 4.645 256.759 5.974
201912 5.007 256.974 6.434
202003 5.173 258.115 6.618
202006 5.382 257.797 6.894
202009 5.587 260.280 7.088
202012 5.761 260.474 7.303
202103 5.748 264.877 7.166
202106 5.845 271.696 7.104
202109 6.304 274.310 7.589
202112 6.732 278.802 7.973
202203 6.812 287.504 7.824
202206 6.952 296.311 7.747
202209 7.365 296.808 8.194
202212 8.012 296.797 8.914
202303 8.399 301.836 9.189
202306 8.375 305.109 9.064
202309 8.884 307.789 9.531
202312 9.349 306.746 10.064
202403 9.767 312.332 10.326
202406 10.224 314.175 10.746
202409 10.623 315.301 11.125
202412 11.536 315.605 12.070
202503 12.229 319.799 12.627
202506 12.904 322.561 13.210
202509 14.154 324.800 14.390
202512 15.085 324.054 15.372
202603 15.598 330.213 15.598

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.

Is Amphenol (TSX:APH) Overvalued in 2026?

Based on GuruFocus' analysis, Amphenol stock appears to be overvalued. The current stock price of C$22.60 is trading 6.5% above its estimated GF Value™ of C$21.23. GuruFocus considers Amphenol to be Fairly Valued.

Key valuation signals for TSX:APH:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: C$21.23 vs. price of C$22.60 (6.5% above fair value)
  • GF Score™: 76/100 with 4 warning signs

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


Amphenol Business Description

Address 358 Hall Avenue, Wallingford, CT, USA, 06492
Amphenol is a global supplier of connectors, sensors, and interconnect systems. It holds the second-largest connector market share globally and sells into the automotive, broadband, commercial air, industrial, IT and data communications, military, mobile devices, and mobile networks end markets. Amphenol is diversified geographically, with operations in 40 countries.
76GF Score

Get the complete analysis for TSX:APH

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

C$22.60
Price
C$21.23
GF Value