Amphenol (BSP:A1PH34) Cyclically Adjusted Book per Share: R$15.93 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

BSP:A1PH34 Amphenol Corp BSP:A1PH34
90 GF Score
Price R$390.38
GF Value R$356.56
Valuation Fairly Valued
! 4 Warning Signs
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What is Amphenol Cyclically Adjusted Book per Share?

Amphenol BSP:A1PH34 -0.01% 90 Cyclically Adjusted Book per Share is R$15.93 as of Mar. 2026. GuruFocus rates BSP:A1PH34 with a GF Score™ of 90/100 and a GF Value™ of R$356.56 (Fairly Valued). The stock has 4 warning signs investors should review.

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Amphenol's adjusted book value per share for the three months ended in Mar. 2026 was R$29.726. 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 R$15.93 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Amphenol's average Cyclically Adjusted Book Growth Rate was 16.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 13.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 14.60% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 13.60% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Amphenol was 115.40% per year. The lowest was 0.00% per year. And the median was 15.70% per year.

As of today (2026-07-20), Amphenol's current stock price is R$390.38. Amphenol's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was R$15.93. Amphenol's Cyclically Adjusted PB Ratio of today is 24.51.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Amphenol was 26.76. The lowest was 6.29. And the median was 10.28.


Amphenol  (BSP:A1PH34) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Amphenol's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=390.38/15.93
=24.51

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Amphenol was 26.76. The lowest was 6.29. And the median was 10.28.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Amphenol Cyclically Adjusted Book per Share Related Terms


Amphenol Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Amphenol's Cyclically Adjusted Book per Share 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 Book per Share Chart

Amphenol Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 9.57 10.14 10.87 16.17 16.32

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 Book per Share 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 15.21 14.82 15.13 16.32 15.93

BSP:A1PH34 vs GLW, TEL, FLEX: Cyclically Adjusted Book per Share 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.


BSP:A1PH34
90GF Score
Amphenol Corp BSP:A1PH34
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Amphenol Cyclically Adjusted Book per Share Calculation

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

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)
=29.726/330.2130*330.2130
=29.726

Current CPI (Mar. 2026) = 330.2130.

Amphenol Quarterly Data

Book Value per Share CPI Adj_Book
201606 4.899 241.018 6.712
201609 4.888 241.428 6.686
201612 4.997 241.432 6.835
201703 4.742 243.801 6.423
201706 5.230 244.955 7.050
201709 5.222 246.819 6.986
201712 5.376 246.524 7.201
201803 5.310 249.554 7.026
201806 5.916 251.989 7.752
201809 6.833 252.439 8.938
201812 6.533 251.233 8.587
201903 6.642 254.202 8.628
201906 6.727 256.143 8.672
201909 7.226 256.759 9.293
201912 7.802 256.974 10.026
202003 9.053 258.115 11.582
202006 10.302 257.797 13.196
202009 11.401 260.280 14.464
202012 11.570 260.474 14.668
202103 12.884 264.877 16.062
202106 12.025 271.696 14.615
202109 13.131 274.310 15.807
202112 14.871 278.802 17.613
202203 13.389 287.504 15.378
202206 13.703 296.311 15.271
202209 14.477 296.808 16.106
202212 15.467 296.797 17.208
202303 15.986 301.836 17.489
202306 15.298 305.109 16.557
202309 16.214 307.789 17.395
202312 17.071 306.746 18.377
202403 17.966 312.332 18.995
202406 20.090 314.175 21.116
202409 21.715 315.301 22.742
202412 24.701 315.605 25.844
202503 24.525 319.799 25.324
202506 26.180 322.561 26.801
202509 27.436 324.800 27.893
202512 29.830 324.054 30.397
202603 29.726 330.213 29.726

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

What does a Cyclically Adjusted Book per Share of R$15.93 mean?
Amphenol (BSP:A1PH34) has a Cyclically Adjusted Book per Share of R$15.93 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Amphenol and its competitors.
Is Amphenol's Cyclically Adjusted Book per Share too high?
Amphenol's current Cyclically Adjusted Book per Share is R$15.93. Overall, Amphenol has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Amphenol's Cyclically Adjusted Book per Share compare to GLW and TEL?
Amphenol's Cyclically Adjusted Book per Share of R$15.93 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Amphenol and its competitors. Amphenol's current Cyclically Adjusted Book per Share is R$15.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Amphenol stock overvalued right now?
Based on GuruFocus' analysis, Amphenol (BSP:A1PH34) is currently considered Fairly Valued. The stock's GF Value™ is R$356.56, compared to a current price of R$390.38 — trading 9.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is R$15.93. Amphenol's overall GF Score™ is 90/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Amphenol (BSP:A1PH34), the current Cyclically Adjusted Book per Share is R$15.93 as of Mar. 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 Amphenol (BSP:A1PH34) Overvalued in 2026?

Based on GuruFocus' analysis, Amphenol stock appears to be overvalued. The current stock price of R$390.38 is trading 9.5% above its estimated GF Value™ of R$356.56. GuruFocus considers Amphenol to be Fairly Valued.

Key valuation signals for BSP:A1PH34:

  • Cyclically Adjusted Book per Share: R$15.93
  • GF Value™: R$356.56 vs. price of R$390.38 (9.5% above fair value)
  • GF Score™: 90/100 with 4 warning signs

No single metric tells the full story. See the BSP:A1PH34 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.
90GF Score

Get the complete analysis for BSP:A1PH34

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

R$390.38
Price
R$356.56
GF Value