Winstek Semiconductor Co (ROCO:3265) Cyclically Adjusted Book per Share: NT$42.01 (As of Dec. 2025)


ROCO:3265 Winstek Semiconductor Co Ltd ROCO:3265
77 GF Score
Price NT$173.50
GF Value NT$117.32
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Winstek Semiconductor Co Cyclically Adjusted Book per Share?

Winstek Semiconductor Co ROCO:3265 77 Cyclically Adjusted Book per Share is NT$42.01 as of Dec. 2025. GuruFocus rates ROCO:3265 with a GF Score™ of 77/100 and a GF Value™ of NT$117.32 (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.

Winstek Semiconductor Co's adjusted book value per share for the three months ended in Dec. 2025 was NT$46.689. 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$42.01 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Winstek Semiconductor Co's average Cyclically Adjusted Book Growth Rate was 5.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.40% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.20% 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 Winstek Semiconductor Co was 8.80% per year. The lowest was 5.40% per year. And the median was 7.75% per year.

As of today (2026-07-12), Winstek Semiconductor Co's current stock price is NT$173.50. Winstek Semiconductor Co's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$42.01. Winstek Semiconductor Co's Cyclically Adjusted PB Ratio of today is 4.13.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Winstek Semiconductor Co was 4.53. The lowest was 0.72. And the median was 1.54.


Winstek Semiconductor Co  (ROCO:3265) 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.

Winstek Semiconductor Co's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=173.50/42.01
=4.13

* 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 Winstek Semiconductor Co was 4.53. The lowest was 0.72. And the median was 1.54.


Be Aware

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


Winstek Semiconductor Co Cyclically Adjusted Book per Share Related Terms


Winstek Semiconductor Co Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Winstek Semiconductor 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.

Winstek Semiconductor Co Cyclically Adjusted Book per Share Chart

Winstek Semiconductor 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 32.64 35.90 37.92 39.93 42.01

Winstek Semiconductor 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 39.93 40.65 41.21 41.75 42.01

ROCO:3265 vs NVDA, AVGO, MU: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Winstek Semiconductor 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.


Winstek Semiconductor Co Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


ROCO:3265
77GF Score
Winstek Semiconductor Co Ltd ROCO:3265
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Winstek Semiconductor 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, Winstek Semiconductor 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)
=46.689/324.0540*324.0540
=46.689

Current CPI (Dec. 2025) = 324.0540.

Winstek Semiconductor Co Quarterly Data

Book Value per Share CPI Adj_Book
201603 22.908 238.132 31.174
201606 23.449 241.018 31.528
201609 23.881 241.428 32.054
201612 27.758 241.432 37.257
201703 29.234 243.801 38.857
201706 27.859 244.955 36.855
201709 28.451 246.819 37.354
201712 31.632 246.524 41.580
201803 31.689 249.554 41.149
201806 32.496 251.989 41.789
201809 33.419 252.439 42.900
201812 33.571 251.233 43.302
201903 34.053 254.202 43.410
201906 32.923 256.143 41.652
201909 33.212 256.759 41.917
201912 35.879 256.974 45.245
202003 34.605 258.115 43.445
202006 34.411 257.797 43.255
202009 34.578 260.280 43.050
202012 34.708 260.474 43.180
202103 33.935 264.877 41.517
202106 34.052 271.696 40.614
202109 35.043 274.310 41.398
202112 35.783 278.802 41.591
202203 35.899 287.504 40.463
202206 39.075 296.311 42.734
202209 42.595 296.808 46.505
202212 42.961 296.797 46.906
202303 39.026 301.836 41.899
202306 41.323 305.109 43.889
202309 43.849 307.789 46.166
202312 43.990 306.746 46.472
202403 41.803 312.332 43.372
202406 43.604 314.175 44.975
202409 44.377 315.301 45.609
202412 46.705 315.605 47.955
202503 43.924 319.799 44.508
202506 41.946 322.561 42.140
202509 44.264 324.800 44.162
202512 46.689 324.054 46.689

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$42.01 mean?
Winstek Semiconductor Co (ROCO:3265) has a Cyclically Adjusted Book per Share of NT$42.01 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 Winstek Semiconductor Co and its competitors.
Is Winstek Semiconductor Co's Cyclically Adjusted Book per Share too high?
Winstek Semiconductor Co's current Cyclically Adjusted Book per Share is NT$42.01. Overall, Winstek Semiconductor Co has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Winstek Semiconductor Co's Cyclically Adjusted Book per Share compare to NVDA and AVGO?
Winstek Semiconductor Co's Cyclically Adjusted Book per Share of NT$42.01 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 Winstek Semiconductor Co and its competitors. Winstek Semiconductor Co's current Cyclically Adjusted Book per Share is NT$42.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Winstek Semiconductor Co stock overvalued right now?
Based on GuruFocus' analysis, Winstek Semiconductor Co (ROCO:3265) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$117.32, compared to a current price of NT$173.50 — trading 47.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$42.01. Winstek Semiconductor Co's overall GF Score™ is 77/100 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 Winstek Semiconductor Co (ROCO:3265), the current Cyclically Adjusted Book per Share is NT$42.01 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 Winstek Semiconductor Co (ROCO:3265) Overvalued in 2026?

Based on GuruFocus' analysis, Winstek Semiconductor Co stock appears to be overvalued. The current stock price of NT$173.50 is trading 47.9% above its estimated GF Value™ of NT$117.32. GuruFocus considers Winstek Semiconductor Co to be Significantly Overvalued.

Key valuation signals for ROCO:3265:

  • Cyclically Adjusted Book per Share: NT$42.01
  • GF Value™: NT$117.32 vs. price of NT$173.50 (47.9% above fair value)
  • GF Score™: 77/100 with 7 warning signs

No single metric tells the full story. See the ROCO:3265 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Winstek Semiconductor Co Business Description

Address No. 176-5, Luliaokeng, 6th Ling, Qionglin Township, Hualung Chun, Chiung Lin, Hsinchu, TWN, 307410
Winstek Semiconductor Co Ltd is engaged in testing and packing services for chips and wafers. The company offers services in Test, Bump, Backend services, and vertical analysis.
77GF Score

Get the complete analysis for ROCO:3265

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

NT$173.50
Price
NT$117.32
GF Value