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.
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.
Sino-American Silicon ProductsROCO:5483 +0.82%82 Cyclically Adjusted PB Ratio is 2.85 as of Aug. 31, 2026, which is 1% above its 10-year median of 2.81. GuruFocus rates ROCO:5483 with a GF Score™ of 82/100 and a GF Value™ of NT$147.85 (Modestly Overvalued). The stock has 9 warning signs investors should review. Among 724 Semiconductors companies, Sino-American Silicon Products ranks better than 53.73% on this metric.
The historical rank and industry rank for Sino-American Silicon Products's Cyclically Adjusted PB Ratio or its related term are showing as below:
ROCO:5483'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.16 Med: 2.81 Max: 5.05
Current: 2.85
During the past years, Sino-American Silicon Products's highest Cyclically Adjusted PB Ratio was 5.05. The lowest was 1.16. And the median was 2.81.
ROCO:5483's Cyclically Adjusted PB Ratio is ranked better than 53.73% of 724
companies
in the Semiconductors industry
Industry Median: 3.185
vs ROCO:5483: 2.85
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 adjusted book value per share data 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.
Shiller PE for Stocks: The True Measure of Stock Valuation
Sino-American Silicon Products (ROCO:5483) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Sino-American Silicon Products Cyclically Adjusted PB Ratio Related Terms
Sino-American Silicon Products Cyclically Adjusted PB Ratio Historical Data
* 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 PB Ratio Chart
ROCO:5483 vs LRCX, AMAT, KLAC: Cyclically Adjusted PB Ratio 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.
Sino-American Silicon Products Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
* 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.
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.
What does a Cyclically Adjusted PB Ratio of 2.85 mean?
Sino-American Silicon Products (ROCO:5483) has a Cyclically Adjusted PB Ratio of 2.85 as of Aug. 31, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sino-American Silicon Products and its competitors. This is near median its historical median of 2.81. Over the past decade, Sino-American Silicon Products' Cyclically Adjusted PB Ratio has ranged from 1.16 to 5.05. According to the industry distribution chart, Sino-American Silicon Products ranks #335 out of 724 companies in the Semiconductors industry, placing it in the top 46.3%.
Is Sino-American Silicon Products' Cyclically Adjusted PB Ratio too high?
Sino-American Silicon Products' current Cyclically Adjusted PB Ratio of 2.85 is near median its 10-year median of 2.81. Over the past 10 years, this metric has ranged from a low of 1.16 to a high of 5.05. The Semiconductors industry median Cyclically Adjusted PB Ratio is 3.19. Sino-American Silicon Products' value of 2.85 is 10.5% below this industry median. Based on the distribution chart, Sino-American Silicon Products ranks #335 out of 724 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Sino-American Silicon Products has a GF Score™ of 82/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' Cyclically Adjusted PB Ratio compare to LRCX and AMAT?
According to the Semiconductors industry distribution chart, Sino-American Silicon Products ranks #335 out of 724 companies for Cyclically Adjusted PB Ratio. This puts Sino-American Silicon Products in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 3.19. Sino-American Silicon Products' value of 2.85 is 10.5% below this benchmark. Historically, Sino-American Silicon Products' own Cyclically Adjusted PB Ratio has ranged from 1.16 to 5.05 over the past decade. While the company's 10-year median is 2.81 vs. the industry median of 3.19, Sino-American Silicon Products has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Semiconductors company?
The median Cyclically Adjusted PB Ratio among Semiconductors companies is 3.19, based on 724 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sino-American Silicon Products's current Cyclically Adjusted PB Ratio of 2.85 is 10.5% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Sino-American Silicon Products and its competitors. For the Semiconductors industry, the median Cyclically Adjusted PB Ratio is 3.19 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sino-American Silicon Products's current Cyclically Adjusted PB Ratio is 2.85, which is near median its own 10-year median of 2.81. 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$147.85, compared to a current price of NT$183.50 — trading 24.1% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.85, which is near median its 10-year median of 2.81 and 10.5% below the Semiconductors industry median of 3.19. Sino-American Silicon Products' overall GF Score™ is 82/100 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Sino-American Silicon Products (ROCO:5483), the current Cyclically Adjusted PB Ratio is 2.85 as of Aug. 31, 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 24.1% above its estimated GF Value™ of NT$147.85.
GuruFocus considers Sino-American Silicon Products to be Modestly Overvalued.
Key valuation signals for ROCO:5483:
Cyclically Adjusted PB Ratio: 2.85 (near median its 10-year median of 2.81)
GF Value™: NT$147.85 vs. price of NT$183.50 (24.1% above fair value)
Industry Position: 10.5% below the Semiconductors median (#335 of 724)
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.
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.
82GF Score
Get the complete analysis for ROCO:5483
Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:5483 has been successfully added to your 
