Amkor Technology (MEX:AMKR) Cyclically Adjusted Book per Share: MXN222.93 (As of Jun. 2026)

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MEX:AMKR Amkor Technology Inc MEX:AMKR
54 GF Score
Price MXN817.11
GF Value MXN575.25
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is Amkor Technology Cyclically Adjusted Book per Share?

Amkor Technology MEX:AMKR -6.08% 54 Cyclically Adjusted Book per Share is MXN222.93 as of Jun. 2026. GuruFocus rates MEX:AMKR with a GF Score™ of 54/100 and a GF Value™ of MXN575.25 (Significantly Overvalued). The stock has 7 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.

Amkor Technology's adjusted book value per share for the three months ended in Jun. 2026 was MXN327.216. 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 MXN222.93 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Amkor Technology's average Cyclically Adjusted Book Growth Rate was 13.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 13.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 15.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 13.50% 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 Amkor Technology was 16.70% per year. The lowest was -12.70% per year. And the median was 10.20% per year.

As of today (2026-08-30), Amkor Technology's current stock price is MXN817.11. Amkor Technology's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was MXN222.93. Amkor Technology's Cyclically Adjusted PB Ratio of today is 3.67.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Amkor Technology was 6.93. The lowest was 1.25. And the median was 2.47.


Amkor Technology  (MEX:AMKR) 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.

Amkor Technology's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=817.11/222.93
=3.67

* 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 Amkor Technology was 6.93. The lowest was 1.25. And the median was 2.47.


Be Aware

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


Amkor Technology Cyclically Adjusted Book per Share Related Terms


Amkor Technology Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Amkor Technology'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.

Amkor Technology Cyclically Adjusted Book per Share Chart

Amkor Technology 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 0.00 0.00 0.00 0.00 0.00

Amkor Technology Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.00 0.00 0.00 226.22 222.93

MEX:AMKR vs NVMI, ONTO, ENTG: Cyclically Adjusted Book per Share Comparison

For the Semiconductor Equipment & Materials subindustry, Amkor Technology'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.


Amkor Technology Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


MEX:AMKR
54GF Score
Amkor Technology Inc MEX:AMKR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Amkor Technology 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, Amkor Technology'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)
=327.216/333.9520*333.9520
=327.216

Current CPI (Jun. 2026) = 333.9520.

Amkor Technology Quarterly Data

Book Value per Share CPI Adj_Book
201609 107.462 241.428 148.645
201612 119.521 241.432 165.323
201703 109.510 243.801 150.004
201706 113.841 244.955 155.202
201709 118.450 246.819 160.266
201712 139.282 246.524 188.677
201803 130.801 249.554 175.037
201806 143.308 251.989 189.921
201809 140.416 252.439 185.757
201812 150.146 251.233 199.582
201903 146.382 254.202 192.306
201906 144.774 256.143 188.752
201909 153.376 256.759 199.488
201912 153.801 256.974 199.873
202003 197.643 258.115 255.713
202006 199.920 257.797 258.978
202009 200.373 260.280 257.088
202012 190.516 260.474 244.259
202103 204.140 264.877 257.376
202106 208.411 271.696 256.166
202109 229.881 274.310 279.863
202112 247.049 278.802 295.918
202203 252.102 287.504 292.831
202206 262.855 296.311 296.246
202209 286.539 296.808 322.398
202212 291.834 296.797 328.368
202303 271.351 301.836 300.223
202306 260.425 305.109 285.044
202309 272.640 307.789 295.815
202312 273.528 306.746 297.788
202403 269.495 312.332 288.150
202406 301.216 314.175 320.177
202409 332.413 315.301 352.076
202412 350.820 315.605 371.214
202503 344.184 319.799 359.416
202506 319.792 322.561 331.085
202509 319.725 324.800 328.734
202512 325.533 324.054 335.476
202603 329.872 330.213 333.607
202606 327.216 333.952 327.216

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 MXN222.93 mean?
Amkor Technology (MEX:AMKR) has a Cyclically Adjusted Book per Share of MXN222.93 as of Jun. 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 Amkor Technology and its competitors.
Is Amkor Technology's Cyclically Adjusted Book per Share too high?
Amkor Technology's current Cyclically Adjusted Book per Share is MXN222.93. Overall, Amkor Technology has a GF Score™ of 54/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Amkor Technology's Cyclically Adjusted Book per Share compare to NVMI and ONTO?
Amkor Technology's Cyclically Adjusted Book per Share of MXN222.93 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 Amkor Technology and its competitors. Amkor Technology's current Cyclically Adjusted Book per Share is MXN222.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Amkor Technology stock overvalued right now?
Based on GuruFocus' analysis, Amkor Technology (MEX:AMKR) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN575.25, compared to a current price of MXN817.11 — trading 42% above its estimated fair value. The current Cyclically Adjusted Book per Share is MXN222.93. Amkor Technology's overall GF Score™ is 54/100 with 7 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 Amkor Technology (MEX:AMKR), the current Cyclically Adjusted Book per Share is MXN222.93 as of Jun. 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 Amkor Technology (MEX:AMKR) Overvalued in 2026?

Based on GuruFocus' analysis, Amkor Technology stock appears to be overvalued. The current stock price of MXN817.11 is trading 42% above its estimated GF Value™ of MXN575.25. GuruFocus considers Amkor Technology to be Significantly Overvalued.

Key valuation signals for MEX:AMKR:

  • Cyclically Adjusted Book per Share: MXN222.93
  • GF Value™: MXN575.25 vs. price of MXN817.11 (42% above fair value)
  • GF Score™: 54/100 with 7 warning signs

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


Amkor Technology Business Description

Other Exchanges AMKR:USAAMK:Germany
Address 2045 East Innovation Circle, Tempe, AZ, USA, 85284
Amkor Technology Inc is a OSAT (outsourced semiconductor assembly and test) service provider. It has pioneered the outsourcing of integrated circuit (IC) packaging and test services and is a strategic manufacturing partner for the semiconductor companies, foundries, and electronics original equipment manufacturers (OEMs). The firm's products are organized into two categories namely advanced products that include flip chip, fine pitch bumping, wafer-level processing, advanced SiPs, power modules, and others, and Mainstream products that includes wirebond packaging and testing. The company derives maximum revenue from the advanced products category. The company derives majority of its revenue from Foreign states.
54GF Score

Get the complete analysis for MEX:AMKR

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

MXN817.11
Price
MXN575.25
GF Value