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Sino-American Silicon ProductsLUX:SIAMS 77 ROC (Joel Greenblatt) % is 13.15% as of Dec. 2025, which is 62% below its 10-year median of 34.21. GuruFocus rates LUX:SIAMS with a GF Score™ of 77/100 and a GF Value™ of $4.59. The stock has 13 warning signs investors should review. Among 1,028 Semiconductors companies, Sino-American Silicon Products ranks better than 52.43% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Sino-American Silicon Products's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was 13.15%.
The historical rank and industry rank for Sino-American Silicon Products's ROC (Joel Greenblatt) % or its related term are showing as below:
LUX:SIAMS'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -1.89 Med: 34.21 Max: 45.47
Current: 9.57
During the past 13 years, Sino-American Silicon Products's highest ROC (Joel Greenblatt) % was 45.47%. The lowest was -1.89%. And the median was 34.21%.
LUX:SIAMS's ROC (Joel Greenblatt) % is ranked better than 52.43% of 1028
companies
in the Semiconductors industry
Industry Median: 8.355
vs LUX:SIAMS: 9.57
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
* 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.
LUX:SIAMS vs AMAT, LRCX, KLAC: ROC (Joel Greenblatt) % Comparison
For the Semiconductor Equipment & Materials subindustry, Sino-American Silicon Products's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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 ROC (Joel Greenblatt) % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Sino-American Silicon Products's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Sino-American Silicon Products's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Dec. 2025) EBIT 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.
What does a ROC (Joel Greenblatt) % of 13.15% mean?
Sino-American Silicon Products (LUX:SIAMS) has a ROC (Joel Greenblatt) % of 13.15% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Sino-American Silicon Products and its competitors. This is 62% below median its historical median of 34.21. According to the industry distribution chart, Sino-American Silicon Products ranks #489 out of 1028 companies in the Semiconductors industry, placing it in the top 47.6%.
Is Sino-American Silicon Products' ROC (Joel Greenblatt) % too high?
Sino-American Silicon Products' current ROC (Joel Greenblatt) % of 13.15% is 62% below median its 10-year median of 34.21. The Semiconductors industry median ROC (Joel Greenblatt) % is 8.36. Sino-American Silicon Products' value of 13.15% is 57.4% above this industry median. Based on the distribution chart, Sino-American Silicon Products ranks #489 out of 1028 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Sino-American Silicon Products has a GF Score™ of 77/100, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' ROC (Joel Greenblatt) % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Sino-American Silicon Products ranks #489 out of 1028 companies for ROC (Joel Greenblatt) %. This puts Sino-American Silicon Products in the upper half of its industry. The industry median ROC (Joel Greenblatt) % is 8.36. Sino-American Silicon Products' value of 13.15% is 57.4% above this benchmark. While the company's 10-year median is 34.21 vs. the industry median of 8.36, Sino-American Silicon Products has consistently been above 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 ROC (Joel Greenblatt) % for a Semiconductors company?
The median ROC (Joel Greenblatt) % among Semiconductors companies is 8.36, based on 1,028 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sino-American Silicon Products's current ROC (Joel Greenblatt) % of 13.15% is 57.4% above 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Sino-American Silicon Products and its competitors. For the Semiconductors industry, the median ROC (Joel Greenblatt) % is 8.36 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sino-American Silicon Products's current ROC (Joel Greenblatt) % is 13.15%, which is 62% below median its own 10-year median of 34.21. 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?
Sino-American Silicon Products (LUX:SIAMS) has a current ROC (Joel Greenblatt) % of 13.15%. The stock's GF Value™ is $4.59, compared to a current price of $7.15 — trading 55.8% above its estimated fair value. The current ROC (Joel Greenblatt) % is 13.15%, which is 62% below median its 10-year median of 34.21 and 57.4% above the Semiconductors industry median of 8.36. 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 ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Sino-American Silicon Products (LUX:SIAMS), the current ROC (Joel Greenblatt) % is 13.15% 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 (LUX:SIAMS) Overvalued in 2026?
Based on GuruFocus' analysis, Sino-American Silicon Products stock appears to be overvalued.
The current stock price of $7.15 is trading 55.8% above its estimated GF Value™ of $4.59.
Key valuation signals for LUX:SIAMS:
ROC (Joel Greenblatt) %: 13.15% (62% below median its 10-year median of 34.21)
GF Value™: $4.59 vs. price of $7.15 (55.8% above fair value)
Industry Position: 57.4% above the Semiconductors median (#489 of 1028)
No single metric tells the full story. See the LUX:SIAMS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sino-American Silicon Products Business Description
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
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