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 Products has the GF Score of 82, which implies that the company
might have
Good outperformance potential.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Sino-American Silicon Products
might have
Good outperformance potential.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Sino-American Silicon Products GF Score Related Terms
LUX:SIAMS vs AMAT, LRCX, KLAC: GF Score Comparison
For the Semiconductor Equipment & Materials subindustry, Sino-American Silicon Products's GF Score, along with its competitors' market caps and GF Score 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 GF Score vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Sino-American Silicon Products's GF Score distribution charts can be found below:
* The bar in red indicates where Sino-American Silicon Products's GF Score falls into.
Sino-American Silicon Products (LUX:SIAMS) has a GF Score of 82 as of Jul. 24, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Sino-American Silicon Products and its competitors. This is near median its historical median of 85.00. Over the past decade, Sino-American Silicon Products' GF Score has ranged from 30.00 to 97.00.
Is Sino-American Silicon Products' GF Score too high?
Sino-American Silicon Products' current GF Score of 82 is near median its 10-year median of 85.00. Over the past 10 years, this metric has ranged from a low of 30.00 to a high of 97.00. Overall, Sino-American Silicon Products has a GF Score™ of 82/100, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' GF Score compare to AMAT and LRCX?
Sino-American Silicon Products' GF Score of 82 can be compared against companies in the Semiconductors industry. Historically, Sino-American Silicon Products' own GF Score has ranged from 30.00 to 97.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Semiconductors company?
A good GF Score depends on the Semiconductors industry context. However, GF Score 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 GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Sino-American Silicon Products and its competitors. Sino-American Silicon Products's current GF Score is 82, which is near median its own 10-year median of 85.00. 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 GF Score of 82. 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 GF Score is 82, which is near median its 10-year median of 85.00. Sino-American Silicon Products' overall GF Score™ is 82/100 with 13 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Sino-American Silicon Products (LUX:SIAMS), the current GF Score is 82 as of Jul. 24, 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 (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:
GF Score: 82 (near median its 10-year median of 85.00)
GF Value™: $4.59 vs. price of $7.15 (55.8% above fair value)
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.
82GF Score
Get the complete analysis for LUX:SIAMS
GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
LUX:SIAMS has been successfully added to your 
