Shian Yih Electronic Industry Co (ROCO:3531) Net Margin %: 15.66% (As of Dec. 2025) — 191% Above Median


ROCO:3531 Shian Yih Electronic Industry Co Ltd ROCO:3531
68 GF Score
Price NT$22.70
GF Value NT$18.33
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Shian Yih Electronic Industry Co Net Margin %?

Shian Yih Electronic Industry Co ROCO:3531 68 Net Margin % is 15.66% as of Dec. 2025, which is 191% above its 10-year median of 5.38. GuruFocus rates ROCO:3531 with a GF Score™ of 68/100 and a GF Value™ of NT$18.33 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 1,020 Semiconductors companies, Shian Yih Electronic Industry Co ranks worse than 59.51% on this metric.

Net margin is calculated as Net Income divided by its Revenue. Shian Yih Electronic Industry Co's Net Income for the three months ended in Dec. 2025 was NT$47 Mil. Shian Yih Electronic Industry Co's Revenue for the three months ended in Dec. 2025 was NT$298 Mil. Therefore, Shian Yih Electronic Industry Co's net margin for the quarter that ended in Dec. 2025 was 15.66%.

The historical rank and industry rank for Shian Yih Electronic Industry Co's Net Margin % or its related term are showing as below:

ROCO:3531' s Net Margin % Range Over the Past 10 Years
Min: 1.39   Med: 5.38   Max: 8.67
Current: 1.39


ROCO:3531's Net Margin % is ranked worse than
59.51% of 1020 companies
in the Semiconductors industry
Industry Median: 4.25 vs ROCO:3531: 1.39

Shian Yih Electronic Industry Co  (ROCO:3531) Net Margin % Explanation

Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.

But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.


Shian Yih Electronic Industry Co Net Margin % Related Terms


Shian Yih Electronic Industry Co Net Margin % Historical Data

* Premium members only.

The historical data trend for Shian Yih Electronic Industry Co's Net Margin % can be seen below:

* 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 Net Margin % Chart

Shian Yih Electronic Industry Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Net Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.10 8.25 7.14 5.23 1.39

Shian Yih Electronic Industry Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Net Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 13.77 6.52 -20.81 9.00 15.66

ROCO:3531 vs NVDA, AVGO, MU: Net Margin % Comparison

For the Semiconductors subindustry, Shian Yih Electronic Industry Co's Net Margin %, along with its competitors' market caps and Net 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.


Shian Yih Electronic Industry Co Net Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Shian Yih Electronic Industry Co's Net Margin % distribution charts can be found below:

* The bar in red indicates where Shian Yih Electronic Industry Co's Net Margin % falls into.


ROCO:3531
68GF Score
Shian Yih Electronic Industry Co Ltd ROCO:3531
Net Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Shian Yih Electronic Industry Co Net Margin % Calculation

Net margin - also known as net profit margin is the ratio of Net Income divided by net sales or Revenue, usually presented in percent.

Shian Yih Electronic Industry Co's Net Margin for the fiscal year that ended in Dec. 2025 is calculated as

Net Margin=Net Income (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=18.062/1295.459
=1.39 %

Shian Yih Electronic Industry Co's Net Margin for the quarter that ended in Dec. 2025 is calculated as

Net Margin=Net Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=46.653/297.989
=15.66 %

* 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.

Frequently Asked Questions Learn more about Net Margin % →
What does a Net Margin % of 15.66% mean?
Shian Yih Electronic Industry Co (ROCO:3531) has a Net Margin % of 15.66% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Shian Yih Electronic Industry Co and its competitors. This is 191% above median its historical median of 5.38. Over the past decade, Shian Yih Electronic Industry Co's Net Margin % has ranged from 1.39 to 8.67. According to the industry distribution chart, Shian Yih Electronic Industry Co ranks #607 out of 1020 companies in the Semiconductors industry, placing it in the top 59.5%.
Is Shian Yih Electronic Industry Co's Net Margin % too high?
Shian Yih Electronic Industry Co's current Net Margin % of 15.66% is 191% above median its 10-year median of 5.38. Over the past 10 years, this metric has ranged from a low of 1.39 to a high of 8.67. The Semiconductors industry median Net Margin % is 4.25. Shian Yih Electronic Industry Co's value of 15.66% is 268.5% above this industry median. Based on the distribution chart, Shian Yih Electronic Industry Co ranks #607 out of 1020 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Shian Yih Electronic Industry Co has a GF Score™ of 68/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Shian Yih Electronic Industry Co's Net Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Shian Yih Electronic Industry Co ranks #607 out of 1020 companies for Net Margin %. This places Shian Yih Electronic Industry Co in the lower half of its industry. The industry median Net Margin % is 4.25. Shian Yih Electronic Industry Co's value of 15.66% is 268.5% above this benchmark. Historically, Shian Yih Electronic Industry Co's own Net Margin % has ranged from 1.39 to 8.67 over the past decade. While the company's 10-year median is 5.38 vs. the industry median of 4.25, Shian Yih Electronic Industry Co 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 Net Margin % for a Semiconductors company?
The median Net Margin % among Semiconductors companies is 4.25, based on 1,020 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Shian Yih Electronic Industry Co's current Net Margin % of 15.66% is 268.5% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Shian Yih Electronic Industry Co and its competitors. For the Semiconductors industry, the median Net Margin % is 4.25 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Shian Yih Electronic Industry Co's current Net Margin % is 15.66%, which is 191% above median its own 10-year median of 5.38. 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$18.33, compared to a current price of NT$22.70 — trading 23.8% above its estimated fair value. The current Net Margin % is 15.66%, which is 191% above median its 10-year median of 5.38 and 268.5% above the Semiconductors industry median of 4.25. Shian Yih Electronic Industry Co's overall GF Score™ is 68/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Shian Yih Electronic Industry Co (ROCO:3531), the current Net Margin % is 15.66% 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 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$22.70 is trading 23.8% above its estimated GF Value™ of NT$18.33. GuruFocus considers Shian Yih Electronic Industry Co to be Modestly Overvalued.

Key valuation signals for ROCO:3531:

  • Net Margin %: 15.66% (191% above median its 10-year median of 5.38)
  • GF Value™: NT$18.33 vs. price of NT$22.70 (23.8% above fair value)
  • GF Score™: 68/100 with 6 warning signs
  • Industry Position: 268.5% above the Semiconductors median (#607 of 1020)

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 Business Description

Address No. 22, Industry 24th Road, Taichung Industrial Park, Taichung, TWN
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.
68GF Score

Get the complete analysis for ROCO:3531

Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$22.70
Price
NT$18.33
GF Value