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Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Sino-American Silicon Products had a gross margin of 28.32% for the quarter that ended in Dec. 2025 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Sino-American Silicon Products Gross Margin % Related Terms
Sino-American Silicon Products Gross Margin % 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.
ROCO:5483 vs AMAT, LRCX, KLAC: Gross Margin % Comparison
For the Semiconductor Equipment & Materials subindustry, Sino-American Silicon Products's Gross Margin %, along with its competitors' market caps and Gross Margin % 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 Gross Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Sino-American Silicon Products's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Sino-American Silicon Products's Gross Margin % falls into.
* 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Sino-American Silicon Products (ROCO:5483) has a Gross Margin % of 28.32% as of Dec. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on Sino-American Silicon Products and its competitors. This is near median its historical median of 29.94. Over the past decade, Sino-American Silicon Products' Gross Margin % has ranged from 10.87 to 39.00. According to the industry distribution chart, Sino-American Silicon Products ranks #605 out of 1011 companies in the Semiconductors industry, placing it in the top 59.8%.
Is Sino-American Silicon Products' Gross Margin % too high?
Sino-American Silicon Products' current Gross Margin % of 28.32% is near median its 10-year median of 29.94. Over the past 10 years, this metric has ranged from a low of 10.87 to a high of 39.00. The Semiconductors industry median Gross Margin % is 29.61. Sino-American Silicon Products' value of 28.32% is 4.4% below this industry median. Based on the distribution chart, Sino-American Silicon Products ranks #605 out of 1011 companies in the Semiconductors industry, which is below the industry midpoint. 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' Gross Margin % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Sino-American Silicon Products ranks #605 out of 1011 companies for Gross Margin %. This places Sino-American Silicon Products in the lower half of its industry. The industry median Gross Margin % is 29.61. Sino-American Silicon Products' value of 28.32% is 4.4% below this benchmark. Historically, Sino-American Silicon Products' own Gross Margin % has ranged from 10.87 to 39.00 over the past decade. While the company's 10-year median is 29.94 vs. the industry median of 29.61, 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 Gross Margin % for a Semiconductors company?
The median Gross Margin % among Semiconductors companies is 29.61, based on 1,011 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sino-American Silicon Products's current Gross Margin % of 28.32% is 4.4% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Sino-American Silicon Products and its competitors. For the Semiconductors industry, the median Gross Margin % is 29.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sino-American Silicon Products's current Gross Margin % is 28.32%, which is near median its own 10-year median of 29.94. 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 Gross Margin % is 28.32%, which is near median its 10-year median of 29.94 and 4.4% below the Semiconductors industry median of 29.61. 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 Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Sino-American Silicon Products (ROCO:5483), the current Gross Margin % is 28.32% 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:
Gross Margin %: 28.32% (near median its 10-year median of 29.94)
GF Value™: NT$151.36 vs. price of NT$212.50 (40.4% above fair value)
Industry Position: 4.4% below the Semiconductors median (#605 of 1011)
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
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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