AUO (FRA:AU7) Cyclically Adjusted Book per Share: €7.09 (As of Jun. 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.

FRA:AU7 AUO Corp FRA:AU7
69 GF Score
Price €6.75
GF Value €4.37
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is AUO Cyclically Adjusted Book per Share?

AUO FRA:AU7 -0.74% 69 Cyclically Adjusted Book per Share is €7.09 as of Jun. 2026. GuruFocus rates FRA:AU7 with a GF Score™ of 69/100 and a GF Value™ of €4.37 (Significantly Overvalued). The stock has 5 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.

AUO's adjusted book value per share for the three months ended in Jun. 2026 was €5.616. 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 €7.09 for the trailing ten years ended in Jun. 2026.

During the past 12 months, AUO's average Cyclically Adjusted Book Growth Rate was -0.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -0.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 1.80% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -1.50% 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 AUO was 3.30% per year. The lowest was -6.10% per year. And the median was -2.45% per year.

As of today (2026-09-03), AUO's current stock price is €6.75. AUO's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €7.09. AUO's Cyclically Adjusted PB Ratio of today is 0.95.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of AUO was 1.59. The lowest was 0.30. And the median was 0.53.


AUO  (FRA:AU7) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=6.75/7.09
=0.95

* 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 AUO was 1.59. The lowest was 0.30. And the median was 0.53.


Be Aware

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


AUO Cyclically Adjusted Book per Share Related Terms


AUO Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for AUO'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.

AUO Cyclically Adjusted Book per Share Chart

AUO 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 8.22 8.60 8.32 8.47 6.89

AUO 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 10.10 8.62 6.89 7.05 7.09

FRA:AU7 vs APH, GLW, TEL: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, AUO'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.


AUO Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


FRA:AU7
69GF Score
AUO Corp FRA:AU7
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

AUO 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, AUO'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)
=5.616/333.9520*333.9520
=5.616

Current CPI (Jun. 2026) = 333.9520.

AUO Quarterly Data

Book Value per Share CPI Adj_Book
201609 6.368 241.428 8.808
201612 6.097 241.432 8.433
201703 7.457 243.801 10.214
201706 7.426 244.955 10.124
201709 7.373 246.819 9.976
201712 7.172 246.524 9.715
201803 7.692 249.554 10.293
201806 7.387 251.989 9.790
201809 7.327 252.439 9.693
201812 7.172 251.233 9.533
201903 7.443 254.202 9.778
201906 7.059 256.143 9.203
201909 7.149 256.759 9.298
201912 6.915 256.974 8.986
202003 6.684 258.115 8.648
202006 6.553 257.797 8.489
202009 6.502 260.280 8.342
202012 7.011 260.474 8.989
202103 7.470 264.877 9.418
202106 8.244 271.696 10.133
202109 9.202 274.310 11.203
202112 9.656 278.802 11.566
202203 9.581 287.504 11.129
202206 9.309 296.311 10.492
202209 8.295 296.808 9.333
202212 7.457 296.797 8.391
202303 6.749 301.836 7.467
202306 6.349 305.109 6.949
202309 6.211 307.789 6.739
202312 6.091 306.746 6.631
202403 5.696 312.332 6.090
202406 5.640 314.175 5.995
202409 5.540 315.301 5.868
202412 5.861 315.605 6.202
202503 5.664 319.799 5.915
202506 5.722 322.561 5.924
202509 5.484 324.800 5.639
202512 5.486 324.054 5.654
202603 5.377 330.213 5.438
202606 5.616 333.952 5.616

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 €7.09 mean?
AUO (FRA:AU7) has a Cyclically Adjusted Book per Share of €7.09 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 AUO and its competitors.
Is AUO's Cyclically Adjusted Book per Share too high?
AUO's current Cyclically Adjusted Book per Share is €7.09. Overall, AUO has a GF Score™ of 69/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AUO's Cyclically Adjusted Book per Share compare to APH and GLW?
AUO's Cyclically Adjusted Book per Share of €7.09 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 AUO and its competitors. AUO's current Cyclically Adjusted Book per Share is €7.09. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AUO stock overvalued right now?
Based on GuruFocus' analysis, AUO (FRA:AU7) is currently considered Significantly Overvalued. The stock's GF Value™ is €4.37, compared to a current price of €6.75 — trading 54.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is €7.09. AUO's overall GF Score™ is 69/100 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 Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For AUO (FRA:AU7), the current Cyclically Adjusted Book per Share is €7.09 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 AUO (FRA:AU7) Overvalued in 2026?

Based on GuruFocus' analysis, AUO stock appears to be overvalued. The current stock price of €6.75 is trading 54.5% above its estimated GF Value™ of €4.37. GuruFocus considers AUO to be Significantly Overvalued.

Key valuation signals for FRA:AU7:

  • Cyclically Adjusted Book per Share: €7.09
  • GF Value™: €4.37 vs. price of €6.75 (54.5% above fair value)
  • GF Score™: 69/100 with 5 warning signs

No single metric tells the full story. See the FRA:AU7 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


AUO Business Description

Address No. 1, Lixing 2nd Road, Hsinchu Science Park, East District, Hsinchu, TWN, 300094
AUO Corp is a Taiwan-based company that manufactures & distributes thin-film-transistor liquid-crystal-display (TFT-LCD) panels to original equipment manufacturers. It operates in two segments - The display segment & energy segment, the majority is derived from the Display segment. The display segment generally is engaged in the research, development, design, manufacturing, & sale of flat panel displays. The energy segment mainly is engaged in the design, manufacturing, and sale of ingots, solar wafers, and solar modules, as well as providing technical engineering services and maintenance services for solar system projects AU Optronics has manufacturing facilities in Taiwan, Japan, and Malaysia. Geographically, the majority is from the PRC (including Hong Kong).
69GF Score

Get the complete analysis for FRA:AU7

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

€6.75
Price
€4.37
GF Value