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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 Shian Yih Electronic Industry Co's Graham Number or its related term are showing as below:
ROCO:3531'
s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.48 Med: 0.73 Max: 1.67
Current: 0.73
During the past 13 years, the highest Price to Graham Number ratio of Shian Yih Electronic Industry Co was 1.67. The lowest was 0.48. And the median was 0.73.
ROCO:3531's Price-to-Graham-Number is ranked better than 90.38% of 686
companies
in the Semiconductors industry
Industry Median: 2.475
vs ROCO:3531: 0.73
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Shian Yih Electronic Industry Co (ROCO:3531) 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.
Shian Yih Electronic Industry Co's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Jun. 2026 )
=
21.90
/
29.95
=
0.73
* 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.
Shian Yih Electronic Industry Co Graham Number Related Terms
Shian Yih Electronic Industry Co 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.
Shian Yih Electronic Industry Co Graham Number Chart
ROCO:3531 vs NVDA, AVGO, MU: Graham Number Comparison
For the Semiconductors subindustry, Shian Yih Electronic Industry Co'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.
Shian Yih Electronic Industry Co Price-to-Graham-Number vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Shian Yih Electronic Industry Co's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Shian Yih Electronic Industry Co'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.
Shian Yih Electronic Industry Co (ROCO:3531) has a Graham Number of NT$29.95 as of Jun. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Shian Yih Electronic Industry Co and its competitors. According to the industry distribution chart, Shian Yih Electronic Industry Co ranks #66 out of 686 companies in the Semiconductors industry, placing it in the top 9.6%.
Is Shian Yih Electronic Industry Co's Graham Number too high?
Shian Yih Electronic Industry Co's current Graham Number is NT$29.95. Based on the distribution chart, Shian Yih Electronic Industry Co ranks #66 out of 686 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Shian Yih Electronic Industry Co has a GF Score™ of 70/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Shian Yih Electronic Industry Co's Graham Number compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Shian Yih Electronic Industry Co ranks #66 out of 686 companies for Graham Number. This places Shian Yih Electronic Industry Co in the top 10% of its industry — outperforming the majority of peers. The industry median Graham Number is 2.48. 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 2.48, based on 686 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. 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 Shian Yih Electronic Industry Co and its competitors. For the Semiconductors industry, the median Graham Number is 2.48 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Shian Yih Electronic Industry Co's current Graham Number is NT$29.95. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Shian Yih Electronic Industry Co stock overvalued right now?
Based on GuruFocus' analysis, Shian Yih Electronic Industry Co (ROCO:3531) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$16.79, compared to a current price of NT$21.90 — trading 30.4% above its estimated fair value. The current Graham Number is NT$29.95. Shian Yih Electronic Industry Co's overall GF Score™ is 70/100 with 5 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 Shian Yih Electronic Industry Co (ROCO:3531), the current Graham Number is NT$29.95 as of Jun. 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 Shian Yih Electronic Industry Co (ROCO:3531) Overvalued in 2026?
Based on GuruFocus' analysis, Shian Yih Electronic Industry Co stock appears to be overvalued.
The current stock price of NT$21.90 is trading 30.4% above its estimated GF Value™ of NT$16.79.
GuruFocus considers Shian Yih Electronic Industry Co to be Modestly Overvalued.
Key valuation signals for ROCO:3531:
Graham Number: NT$29.95
GF Value™: NT$16.79 vs. price of NT$21.90 (30.4% above fair value)
No single metric tells the full story. See the ROCO:3531 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Shian Yih Electronic Industry Co Ltd manufactures small to medium-sized LED backlight modules in Taiwan. Its products are applied in liquid crystal displays (LCDs), notebook computers, LCD televisions, digital cameras, personal digital assistants (PDAs), and mobile phones. Its products comprise small to medium-sized LED backlight modules, motorcycle and vehicle LED headlight modules, LED packaging & sales (IR, light emitting diode, PT), mold design and fabrication, and plastic injection molding. The companies reportable segment is the Backlight Module Segment. The back light module segment principally engages in the manufacture and sale of products related to back light modules.
70GF Score
Get the complete analysis for ROCO:3531
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