Sino-American Silicon Products (ROCO:5483) Cyclically Adjusted Book per Share: NT$64.44 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:5483 Sino-American Silicon Products Inc ROCO:5483
78 GF Score
Price NT$183.50
GF Value NT$148.64
Valuation Modestly Overvalued
! 9 Warning Signs
View Full Analysis

What is Sino-American Silicon Products Cyclically Adjusted Book per Share?

Sino-American Silicon Products ROCO:5483 78 Cyclically Adjusted Book per Share is NT$64.44 as of Jun. 2026. GuruFocus rates ROCO:5483 with a GF Score™ of 78/100 and a GF Value™ of NT$148.64 (Modestly Overvalued). The stock has 9 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 Jun. 2026 was NT$83.252. 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$64.44 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Sino-American Silicon Products's average Cyclically Adjusted Book Growth Rate was 7.80% 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 (2026-09-08), Sino-American Silicon Products's current stock price is NT$183.50. Sino-American Silicon Products's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was NT$64.44. Sino-American Silicon Products's Cyclically Adjusted PB Ratio of today is 2.85.

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
=183.50/64.44
=2.85

* 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
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 59.80 60.77 61.27 63.04 64.44

ROCO:5483 vs LRCX, AMAT, 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
78GF 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 Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=83.252/333.9520*333.9520
=83.252

Current CPI (Jun. 2026) = 333.9520.

Sino-American Silicon Products Quarterly Data

Book Value per Share CPI Adj_Book
201609 37.799 241.428 52.285
201612 36.378 241.432 50.319
201703 34.958 243.801 47.885
201706 43.828 244.955 59.752
201709 45.654 246.819 61.771
201712 46.751 246.524 63.331
201803 47.668 249.554 63.789
201806 46.580 251.989 61.731
201809 47.383 252.439 62.683
201812 46.119 251.233 61.304
201903 49.211 254.202 64.650
201906 42.843 256.143 55.857
201909 45.206 256.759 58.797
201912 45.494 256.974 59.122
202003 41.960 258.115 54.288
202006 44.374 257.797 57.482
202009 47.225 260.280 60.592
202012 48.038 260.474 61.589
202103 48.529 264.877 61.184
202106 47.603 271.696 58.511
202109 49.415 274.310 60.159
202112 48.680 278.802 58.309
202203 50.216 287.504 58.329
202206 46.359 296.311 52.248
202209 52.177 296.808 58.707
202212 54.369 296.797 61.175
202303 57.724 301.836 63.866
202306 56.582 305.109 61.931
202309 61.633 307.789 66.872
202312 56.767 306.746 61.802
202403 61.927 312.332 66.214
202406 71.851 314.175 76.374
202409 82.679 315.301 87.570
202412 79.075 315.605 83.672
202503 78.097 319.799 81.553
202506 72.765 322.561 75.335
202509 76.794 324.800 78.958
202512 80.521 324.054 82.980
202603 80.461 330.213 81.372
202606 83.252 333.952 83.252

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$64.44 mean?
Sino-American Silicon Products (ROCO:5483) has a Cyclically Adjusted Book per Share of NT$64.44 as of Jun. 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 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$64.44. Overall, Sino-American Silicon Products has a GF Score™ of 78/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' Cyclically Adjusted Book per Share compare to LRCX and AMAT?
Sino-American Silicon Products' Cyclically Adjusted Book per Share of NT$64.44 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$64.44. 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 Modestly Overvalued. The stock's GF Value™ is NT$148.64, compared to a current price of NT$183.50 — trading 23.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is NT$64.44. Sino-American Silicon Products' overall GF Score™ is 78/100 with 9 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$64.44 as of Jun. 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 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$183.50 is trading 23.5% above its estimated GF Value™ of NT$148.64. GuruFocus considers Sino-American Silicon Products to be Modestly Overvalued.

Key valuation signals for ROCO:5483:

  • Cyclically Adjusted Book per Share: NT$64.44
  • GF Value™: NT$148.64 vs. price of NT$183.50 (23.5% above fair value)
  • GF Score™: 78/100 with 9 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.
78GF 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$183.50
Price
NT$148.64
GF Value