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Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.
The historical rank and industry rank for Sino-American Silicon Products's Graham Number or its related term are showing as below:
LUX:SIAMS'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.93 Med: 1.33 Max: 2.58
Current: 1.61
During the past 13 years, the highest Price to Graham Number ratio of Sino-American Silicon Products was 2.58. The lowest was 0.93. And the median was 1.33.
LUX:SIAMS's Price-to-Graham-Number is ranked better than 72.27% of 660
companies
in the Semiconductors industry
Industry Median: 2.87
vs LUX:SIAMS: 1.61
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Sino-American Silicon Products (LUX:SIAMS) Graham Number Explanation
Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:
Current price should not be more than 15 times average earnings of the past three years.
Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)
Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.
In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.
Sino-American Silicon Products's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
7.15
/
3.33
=
2.15
* 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.
Be Aware
Please keep these in mind:
1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.
Sino-American Silicon Products Graham Number Related Terms
Sino-American Silicon Products Graham Number 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 Graham Number Chart
LUX:SIAMS vs AMAT, LRCX, KLAC: Graham Number Comparison
For the Semiconductor Equipment & Materials subindustry, Sino-American Silicon Products's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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 Price-to-Graham-Number vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Sino-American Silicon Products's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Sino-American Silicon Products's Price-to-Graham-Number 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.
Sino-American Silicon Products (LUX:SIAMS) has a Graham Number of $3.33 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Sino-American Silicon Products and its competitors. This is 150% above median its historical median of 1.33. Over the past decade, Sino-American Silicon Products' Graham Number has ranged from 0.93 to 2.58. According to the industry distribution chart, Sino-American Silicon Products ranks #183 out of 660 companies in the Semiconductors industry, placing it in the top 27.7%.
Is Sino-American Silicon Products' Graham Number too high?
Sino-American Silicon Products' current Graham Number of $3.33 is 150% above median its 10-year median of 1.33. Over the past 10 years, this metric has ranged from a low of 0.93 to a high of 2.58. The Semiconductors industry median Graham Number is 2.87. Sino-American Silicon Products' value of $3.33 is 16% above this industry median. Based on the distribution chart, Sino-American Silicon Products ranks #183 out of 660 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Sino-American Silicon Products has a GF Score™ of 76/100, reflecting its overall financial health beyond just this single metric.
How does Sino-American Silicon Products' Graham Number compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Sino-American Silicon Products ranks #183 out of 660 companies for Graham Number. This puts Sino-American Silicon Products in the upper half of its industry. The industry median Graham Number is 2.87. Sino-American Silicon Products' value of $3.33 is 16% above this benchmark. Historically, Sino-American Silicon Products' own Graham Number has ranged from 0.93 to 2.58 over the past decade. While the company's 10-year median is 1.33 vs. the industry median of 2.87, 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 Graham Number for a Semiconductors company?
The median Graham Number among Semiconductors companies is 2.87, based on 660 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sino-American Silicon Products's current Graham Number of $3.33 is 16% 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 Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Sino-American Silicon Products and its competitors. For the Semiconductors industry, the median Graham Number is 2.87 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sino-American Silicon Products's current Graham Number is $3.33, which is 150% above median its own 10-year median of 1.33. 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 Graham Number of $3.33. The stock's GF Value™ is $6.26, compared to a current price of $7.15 — trading 14.2% above its estimated fair value. The current Graham Number is $3.33, which is 150% above median its 10-year median of 1.33 and 16% above the Semiconductors industry median of 2.87. Sino-American Silicon Products' overall GF Score™ is 76/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Sino-American Silicon Products (LUX:SIAMS), the current Graham Number is $3.33 as of Mar. 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 14.2% above its estimated GF Value™ of $6.26.
Key valuation signals for LUX:SIAMS:
Graham Number: $3.33 (150% above median its 10-year median of 1.33)
GF Value™: $6.26 vs. price of $7.15 (14.2% above fair value)
Industry Position: 16% above the Semiconductors median (#183 of 660)
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.
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.
76GF Score
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