AUO (TPE:2409) Cyclically Adjusted Book per Share: NT$28.55 (As of Mar. 2026)


TPE:2409 AUO Corp TPE:2409
63 GF Score
Price NT$31.70
GF Value NT$17.46
Valuation Significantly Overvalued
! 10 Warning Signs
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What is AUO Cyclically Adjusted Book per Share?

AUO TPE:2409 +5.67% 63 Cyclically Adjusted Book per Share is NT$28.55 as of Mar. 2026. GuruFocus rates TPE:2409 with a GF Score™ of 63/100 and a GF Value™ of NT$17.46 (Significantly Overvalued). The stock has 10 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 Mar. 2026 was NT$19.812. 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 NT$28.55 for the trailing ten years ended in Mar. 2026.

During the past 12 months, AUO's average Cyclically Adjusted Book Growth Rate was -0.90% 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 (2026-07-07), AUO's current stock price is NT$31.70. AUO's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was NT$28.55. AUO's Cyclically Adjusted PB Ratio of today is 1.11.

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  (TPE:2409) 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
=31.70/28.55
=1.11

* 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 26.90 28.40 28.78 28.73 28.31

AUO 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 28.81 28.73 28.57 28.31 28.55

TPE:2409 vs APH, GLW: 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.


TPE:2409
63GF Score
AUO Corp TPE:2409
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 Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=19.812/330.2130*330.2130
=19.812

Current CPI (Mar. 2026) = 330.2130.

AUO Quarterly Data

Book Value per Share CPI Adj_Book
201606 22.180 241.018 30.388
201609 22.482 241.428 30.750
201612 20.579 241.432 28.146
201703 24.443 243.801 33.106
201706 25.250 244.955 34.038
201709 26.479 246.819 35.426
201712 25.424 246.524 34.055
201803 27.693 249.554 36.644
201806 25.961 251.989 34.020
201809 26.270 252.439 34.364
201812 25.115 251.233 33.010
201903 25.952 254.202 33.712
201906 24.958 256.143 32.175
201909 24.465 256.759 31.464
201912 23.248 256.974 29.874
202003 22.253 258.115 28.469
202006 21.881 257.797 28.027
202009 22.361 260.280 28.369
202012 24.055 260.474 30.495
202103 25.138 264.877 31.339
202106 27.591 271.696 33.533
202109 30.012 274.310 36.128
202112 30.275 278.802 35.858
202203 30.000 287.504 34.457
202206 29.129 296.311 32.462
202209 25.688 296.808 28.579
202212 24.212 296.797 26.938
202303 22.064 301.836 24.138
202306 21.214 305.109 22.959
202309 21.242 307.789 22.790
202312 20.758 306.746 22.346
202403 19.621 312.332 20.744
202406 19.656 314.175 20.659
202409 19.649 315.301 20.578
202412 19.992 315.605 20.917
202503 20.193 319.799 20.851
202506 19.552 322.561 20.016
202509 19.549 324.800 19.875
202512 20.140 324.054 20.523
202603 19.812 330.213 19.812

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 NT$28.55 mean?
AUO (TPE:2409) has a Cyclically Adjusted Book per Share of NT$28.55 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 AUO and its competitors.
Is AUO's Cyclically Adjusted Book per Share too high?
AUO's current Cyclically Adjusted Book per Share is NT$28.55. Overall, AUO has a GF Score™ of 63/100 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 NT$28.55 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 NT$28.55. 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 (TPE:2409) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$17.46, compared to a current price of NT$31.70 — trading 81.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$28.55. AUO's overall GF Score™ is 63/100 with 10 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 (TPE:2409), the current Cyclically Adjusted Book per Share is NT$28.55 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 AUO (TPE:2409) Overvalued in 2026?

Based on GuruFocus' analysis, AUO stock appears to be overvalued. The current stock price of NT$31.70 is trading 81.6% above its estimated GF Value™ of NT$17.46. GuruFocus considers AUO to be Significantly Overvalued.

Key valuation signals for TPE:2409:

  • Cyclically Adjusted Book per Share: NT$28.55
  • GF Value™: NT$17.46 vs. price of NT$31.70 (81.6% above fair value)
  • GF Score™: 63/100 with 10 warning signs

No single metric tells the full story. See the TPE:2409 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


AUO Business Description

Other Exchanges AUOTY:USAAU7:Germany
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).
63GF Score

Get the complete analysis for TPE:2409

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

NT$31.70
Price
NT$17.46
GF Value