Sino-American Silicon Products (ROCO:5483) Cyclically Adjusted Book per Share: NT$61.27 (As of Dec. 2025)

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ROCO:5483 Sino-American Silicon Products Inc ROCO:5483
77 GF Score
Price NT$212.50
GF Value NT$151.36
Valuation Significantly Overvalued
! 13 Warning Signs
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What is Sino-American Silicon Products Cyclically Adjusted Book per Share?

Sino-American Silicon Products ROCO:5483 -9.19% 77 Cyclically Adjusted Book per Share is NT$61.27 as of Dec. 2025. GuruFocus rates ROCO:5483 with a GF Score™ of 77/100 and a GF Value™ of NT$151.36 (Significantly Overvalued). The stock has 13 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.

Sino-American Silicon Products's adjusted book value per share for the three months ended in Dec. 2025 was NT$80.521. 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$61.27 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Sino-American Silicon Products's average Cyclically Adjusted Book Growth Rate was 6.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 6.60% 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 Sino-American Silicon Products was 6.60% per year. The lowest was 4.90% per year. And the median was 6.20% per year.

As of today (2026-07-23), Sino-American Silicon Products's current stock price is NT$212.50. Sino-American Silicon Products's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was NT$61.27. Sino-American Silicon Products's Cyclically Adjusted PB Ratio of today is 3.47.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Sino-American Silicon Products was 5.05. The lowest was 1.16. And the median was 2.81.


Sino-American Silicon Products  (ROCO:5483) 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.

Sino-American Silicon Products's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=212.50/61.27
=3.47

* 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 Sino-American Silicon Products was 5.05. The lowest was 1.16. And the median was 2.81.


Be Aware

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


Sino-American Silicon Products Cyclically Adjusted Book per Share Related Terms


Sino-American Silicon Products Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Sino-American Silicon Products'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.

Sino-American Silicon Products Cyclically Adjusted Book per Share Chart

Sino-American Silicon Products 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 47.37 50.54 53.51 57.30 61.27

Sino-American Silicon Products 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 57.30 58.75 59.80 60.77 61.27

ROCO:5483 vs AMAT, LRCX, KLAC: Cyclically Adjusted Book per Share Comparison

For the Semiconductor Equipment & Materials subindustry, Sino-American Silicon Products'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.


Sino-American Silicon Products Cyclically Adjusted PB Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Sino-American Silicon Products's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Sino-American Silicon Products's Cyclically Adjusted PB Ratio falls into.


ROCO:5483
77GF Score
Sino-American Silicon Products Inc ROCO:5483
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sino-American Silicon Products 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, Sino-American Silicon Products'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)
=80.521/324.0540*324.0540
=80.521

Current CPI (Dec. 2025) = 324.0540.

Sino-American Silicon Products Quarterly Data

Book Value per Share CPI Adj_Book
201603 40.579 238.132 55.221
201606 40.397 241.018 54.315
201609 37.799 241.428 50.735
201612 36.378 241.432 48.827
201703 34.958 243.801 46.465
201706 43.828 244.955 57.981
201709 45.654 246.819 59.940
201712 46.751 246.524 61.454
201803 47.668 249.554 61.898
201806 46.580 251.989 59.901
201809 47.383 252.439 60.825
201812 46.119 251.233 59.487
201903 49.211 254.202 62.734
201906 42.843 256.143 54.202
201909 45.206 256.759 57.054
201912 45.494 256.974 57.370
202003 41.960 258.115 52.679
202006 44.374 257.797 55.779
202009 47.225 260.280 58.796
202012 48.038 260.474 59.764
202103 48.529 264.877 59.371
202106 47.603 271.696 56.776
202109 49.415 274.310 58.376
202112 48.680 278.802 56.581
202203 50.216 287.504 56.600
202206 46.359 296.311 50.699
202209 52.177 296.808 56.967
202212 54.369 296.797 59.362
202303 57.724 301.836 61.973
202306 56.582 305.109 60.095
202309 61.633 307.789 64.890
202312 56.767 306.746 59.970
202403 61.927 312.332 64.251
202406 71.851 314.175 74.110
202409 82.679 315.301 84.974
202412 79.075 315.605 81.192
202503 78.097 319.799 79.136
202506 72.765 322.561 73.102
202509 76.794 324.800 76.618
202512 80.521 324.054 80.521

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$61.27 mean?
Sino-American Silicon Products (ROCO:5483) has a Cyclically Adjusted Book per Share of NT$61.27 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 Sino-American Silicon Products and its competitors.
Is Sino-American Silicon Products' Cyclically Adjusted Book per Share too high?
Sino-American Silicon Products' current Cyclically Adjusted Book per Share is NT$61.27. Overall, Sino-American Silicon Products has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' Cyclically Adjusted Book per Share compare to AMAT and LRCX?
Sino-American Silicon Products' Cyclically Adjusted Book per Share of NT$61.27 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 Sino-American Silicon Products and its competitors. Sino-American Silicon Products's current Cyclically Adjusted Book per Share is NT$61.27. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sino-American Silicon Products stock overvalued right now?
Based on GuruFocus' analysis, Sino-American Silicon Products (ROCO:5483) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$151.36, compared to a current price of NT$212.50 — trading 40.4% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$61.27. Sino-American Silicon Products' overall GF Score™ is 77/100 with 13 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 Sino-American Silicon Products (ROCO:5483), the current Cyclically Adjusted Book per Share is NT$61.27 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 Sino-American Silicon Products (ROCO:5483) Overvalued in 2026?

Based on GuruFocus' analysis, Sino-American Silicon Products stock appears to be overvalued. The current stock price of NT$212.50 is trading 40.4% above its estimated GF Value™ of NT$151.36. GuruFocus considers Sino-American Silicon Products to be Significantly Overvalued.

Key valuation signals for ROCO:5483:

  • Cyclically Adjusted Book per Share: NT$61.27
  • GF Value™: NT$151.36 vs. price of NT$212.50 (40.4% above fair value)
  • GF Score™: 77/100 with 13 warning signs

No single metric tells the full story. See the ROCO:5483 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sino-American Silicon Products Business Description

Address Industrial East Road 2, No. 8, 4th Floor, Science Based Industrial Park, Hsinchu, TWN
Founded in 1981, Sino-American Silicon Products Inc. is a holding company specializing in the semiconductor industry. Its crown jewel is its 46.64% stake in silicon wafer producer GlobalWafers, which was carved out in 2011. GlobalWafers runs 18 production sites in nine countries across Asia, North America, and Europe. Other notable investments include Advanced Wireless Semiconductor Company, Actron Technology, and Taiwan Specialty Materials. SAS started selling renewable energy to power grids in October 2022. SAS is headquartered in Hsinchu, Taiwan. SAS employs about 8,000 people through its subsidiaries. Through GlobalWafers, SAS had nearly 17% market share in silicon wafers in 2025.
77GF Score

Get the complete analysis for ROCO:5483

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

NT$212.50
Price
NT$151.36
GF Value