Sdi (TPE:2351) Cyclically Adjusted Book per Share: NT$38.49 (As of Dec. 2025)


TPE:2351 Sdi Corp TPE:2351
74 GF Score
Price NT$200.00
GF Value NT$97.28
Valuation Significantly Overvalued
! 10 Warning Signs
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What is Sdi Cyclically Adjusted Book per Share?

Sdi TPE:2351 74 Cyclically Adjusted Book per Share is NT$38.49 as of Dec. 2025. GuruFocus rates TPE:2351 with a GF Score™ of 74/100 and a GF Value™ of NT$97.28 (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.

Sdi's adjusted book value per share for the three months ended in Dec. 2025 was NT$38.219. 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$38.49 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Sdi's average Cyclically Adjusted Book Growth Rate was 3.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 4.50% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 6.50% 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 Sdi was 8.30% per year. The lowest was 4.50% per year. And the median was 6.50% per year.

As of today (2026-07-12), Sdi's current stock price is NT$200.00. Sdi's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$38.49. Sdi's Cyclically Adjusted PB Ratio of today is 5.20.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sdi was 5.82. The lowest was 1.32. And the median was 2.89.


Sdi  (TPE:2351) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=200.00/38.49
=5.20

* 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 Sdi was 5.82. The lowest was 1.32. And the median was 2.89.


Be Aware

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


Sdi Cyclically Adjusted Book per Share Related Terms


Sdi Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sdi'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.

Sdi Cyclically Adjusted Book per Share Chart

Sdi 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 30.88 33.74 35.65 37.26 38.49

Sdi 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 37.26 37.85 38.24 38.54 38.49

TPE:2351 vs AMAT, LRCX, KLAC: Cyclically Adjusted Book per Share Comparison

For the Semiconductor Equipment & Materials subindustry, Sdi'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.


Sdi Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


TPE:2351
74GF Score
Sdi Corp TPE:2351
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sdi 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, Sdi'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)
=38.219/324.0540*324.0540
=38.219

Current CPI (Dec. 2025) = 324.0540.

Sdi Quarterly Data

Book Value per Share CPI Adj_Book
201603 27.373 238.132 37.250
201606 26.192 241.018 35.216
201609 26.980 241.428 36.214
201612 28.013 241.432 37.600
201703 28.406 243.801 37.757
201706 27.056 244.955 35.793
201709 28.355 246.819 37.228
201712 29.354 246.524 38.586
201803 30.387 249.554 39.459
201806 29.169 251.989 37.511
201809 30.144 252.439 38.696
201812 31.311 251.233 40.387
201903 32.329 254.202 41.213
201906 30.291 256.143 38.322
201909 30.768 256.759 38.832
201912 30.972 256.974 39.057
202003 31.185 258.115 39.152
202006 29.630 257.797 37.245
202009 30.286 260.280 37.707
202012 31.184 260.474 38.796
202103 32.158 264.877 39.343
202106 33.339 271.696 39.764
202109 32.811 274.310 38.761
202112 33.967 278.802 39.480
202203 35.656 287.504 40.189
202206 34.043 296.311 37.230
202209 35.533 296.808 38.795
202212 36.388 296.797 39.730
202303 37.647 301.836 40.418
202306 35.343 305.109 37.538
202309 36.828 307.789 38.774
202312 37.154 306.746 39.250
202403 38.369 312.332 39.809
202406 37.042 314.175 38.207
202409 37.840 315.301 38.890
202412 38.735 315.605 39.772
202503 39.464 319.799 39.989
202506 36.394 322.561 36.562
202509 37.099 324.800 37.014
202512 38.219 324.054 38.219

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$38.49 mean?
Sdi (TPE:2351) has a Cyclically Adjusted Book per Share of NT$38.49 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 Sdi and its competitors.
Is Sdi's Cyclically Adjusted Book per Share too high?
Sdi's current Cyclically Adjusted Book per Share is NT$38.49. Overall, Sdi has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sdi's Cyclically Adjusted Book per Share compare to AMAT and LRCX?
Sdi's Cyclically Adjusted Book per Share of NT$38.49 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 Sdi and its competitors. Sdi's current Cyclically Adjusted Book per Share is NT$38.49. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sdi stock overvalued right now?
Based on GuruFocus' analysis, Sdi (TPE:2351) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$97.28, compared to a current price of NT$200.00 — trading 105.6% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$38.49. Sdi's overall GF Score™ is 74/100 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 Sdi (TPE:2351), the current Cyclically Adjusted Book per Share is NT$38.49 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 Sdi (TPE:2351) Overvalued in 2026?

Based on GuruFocus' analysis, Sdi stock appears to be overvalued. The current stock price of NT$200.00 is trading 105.6% above its estimated GF Value™ of NT$97.28. GuruFocus considers Sdi to be Significantly Overvalued.

Key valuation signals for TPE:2351:

  • Cyclically Adjusted Book per Share: NT$38.49
  • GF Value™: NT$97.28 vs. price of NT$200.00 (105.6% above fair value)
  • GF Score™: 74/100 with 10 warning signs

No single metric tells the full story. See the TPE:2351 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sdi Business Description

Address No. 260, Chang Nan Road, Section 2, Chang Hua, TWN
Sdi Corp manufactures and distributes stationary products such as stapler, correction tapes, clips, and other office stationeries. The company's segment includes the Electronic segment and Stationery segment. It generates maximum revenue from the Electronic segment. Geographically, it derives a majority of its revenue from China.
74GF Score

Get the complete analysis for TPE:2351

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

NT$200.00
Price
NT$97.28
GF Value