OK Biotech Co (TPE:4155) Cyclically Adjusted Book per Share: NT$17.82 (As of Dec. 2025)


TPE:4155 OK Biotech Co Ltd TPE:4155
61 GF Score
Price NT$15.50
GF Value NT$27.26
Valuation Possible Value Trap
! 7 Warning Signs
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What is OK Biotech Co Cyclically Adjusted Book per Share?

OK Biotech Co TPE:4155 +1.31% 61 Cyclically Adjusted Book per Share is NT$17.82 as of Dec. 2025. GuruFocus rates TPE:4155 with a GF Score™ of 61/100 and a GF Value™ of NT$27.26 (Possible Value Trap). 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.

OK Biotech Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$17.808. 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$17.82 for the trailing ten years ended in Dec. 2025.

During the past 12 months, OK Biotech Co's average Cyclically Adjusted Book Growth Rate was 2.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 6.30% 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 OK Biotech Co was 6.30% per year. The lowest was 6.30% per year. And the median was 6.30% per year.

As of today (2026-07-06), OK Biotech Co's current stock price is NT$15.50. OK Biotech Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$17.82. OK Biotech Co's Cyclically Adjusted PB Ratio of today is 0.87.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of OK Biotech Co was 2.24. The lowest was 0.73. And the median was 1.41.


OK Biotech Co  (TPE:4155) 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.

OK Biotech Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=15.50/17.82
=0.87

* 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 OK Biotech Co was 2.24. The lowest was 0.73. And the median was 1.41.


Be Aware

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


OK Biotech Co Cyclically Adjusted Book per Share Related Terms


OK Biotech Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for OK Biotech Co'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.

OK Biotech Co Cyclically Adjusted Book per Share Chart

OK Biotech Co 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 14.84 16.38 17.33 17.82

OK Biotech Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 17.33 17.59 17.73 17.83 17.82

TPE:4155 vs ABT, SYK, MDT: Cyclically Adjusted Book per Share Comparison

For the Medical Devices subindustry, OK Biotech Co'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.


OK Biotech Co Cyclically Adjusted PB Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, OK Biotech Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TPE:4155
61GF Score
OK Biotech Co Ltd TPE:4155
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

OK Biotech Co 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, OK Biotech Co's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=17.808/324.0540*324.0540
=17.808

Current CPI (Dec. 2025) = 324.0540.

OK Biotech Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 0.000 238.132 0.000
201606 12.007 241.018 16.144
201609 0.000 241.428 0.000
201612 12.302 241.432 16.512
201703 12.630 243.801 16.787
201706 11.837 244.955 15.659
201709 12.385 246.819 16.261
201712 13.993 246.524 18.394
201803 14.347 249.554 18.630
201806 13.462 251.989 17.312
201809 14.037 252.439 18.019
201812 14.619 251.233 18.856
201903 15.006 254.202 19.129
201906 13.183 256.143 16.678
201909 13.944 256.759 17.599
201912 14.447 256.974 18.218
202003 13.700 258.115 17.200
202006 14.437 257.797 18.147
202009 16.012 260.280 19.935
202012 16.368 260.474 20.363
202103 15.447 264.877 18.898
202106 15.584 271.696 18.587
202109 15.821 274.310 18.690
202112 16.140 278.802 18.760
202203 16.240 287.504 18.305
202206 16.057 296.311 17.560
202209 16.372 296.808 17.875
202212 16.439 296.797 17.949
202303 17.267 301.836 18.538
202306 16.321 305.109 17.334
202309 18.419 307.789 19.392
202312 16.450 306.746 17.378
202403 16.464 312.332 17.082
202406 16.806 314.175 17.334
202409 16.638 315.301 17.100
202412 16.946 315.605 17.400
202503 17.322 319.799 17.552
202506 16.737 322.561 16.814
202509 16.920 324.800 16.881
202512 17.808 324.054 17.808

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$17.82 mean?
OK Biotech Co (TPE:4155) has a Cyclically Adjusted Book per Share of NT$17.82 as of Dec. 2025. 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 OK Biotech Co and its competitors.
Is OK Biotech Co's Cyclically Adjusted Book per Share too high?
OK Biotech Co's current Cyclically Adjusted Book per Share is NT$17.82. Overall, OK Biotech Co has a GF Score™ of 61/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does OK Biotech Co's Cyclically Adjusted Book per Share compare to ABT and SYK?
OK Biotech Co's Cyclically Adjusted Book per Share of NT$17.82 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good Cyclically Adjusted Book per Share depends on the Medical Devices & Instruments 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 OK Biotech Co and its competitors. OK Biotech Co's current Cyclically Adjusted Book per Share is NT$17.82. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OK Biotech Co stock overvalued right now?
Based on GuruFocus' analysis, OK Biotech Co (TPE:4155) is currently considered Possible Value Trap. The stock's GF Value™ is NT$27.26, compared to a current price of NT$15.50 — trading 43.1% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$17.82. OK Biotech Co's overall GF Score™ is 61/100 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 OK Biotech Co (TPE:4155), the current Cyclically Adjusted Book per Share is NT$17.82 as of Dec. 2025. 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 OK Biotech Co (TPE:4155) Overvalued in 2026?

Based on GuruFocus' analysis, OK Biotech Co stock appears to be undervalued. The current stock price of NT$15.50 is trading 43.1% below its estimated GF Value™ of NT$27.26. GuruFocus considers OK Biotech Co to be Possible Value Trap.

Key valuation signals for TPE:4155:

  • Cyclically Adjusted Book per Share: NT$17.82
  • GF Value™: NT$27.26 vs. price of NT$15.50 (43.1% below fair value)
  • GF Score™: 61/100 with 7 warning signs

No single metric tells the full story. See the TPE:4155 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


OK Biotech Co Business Description

Address Gongdao 5th Road, Section 2, No. 91, Hsinchu, TWN, 30070
OK Biotech Co Ltd is mainly engaged in the manufacturing, wholesale, and retail of electronic materials and medical equipment. Its product portfolio comprises blood glucose monitoring systems, OTC hearing aids, multi-frequency therapy devices, and others. Geographically, the company generates the majority of its revenue from America, and the rest from Asia (excluding Taiwan), Africa, Europe, and Taiwan.
61GF Score

Get the complete analysis for TPE:4155

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

NT$15.50
Price
NT$27.26
GF Value