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.
Operating Margin % is calculated as Operating Income divided by its Revenue. River Eletec's Operating Income for the
six
months ended in Mar. 2026 was 円99 Mil. River Eletec's Revenue for the
six
months ended in Mar. 2026 was 円2,923 Mil. Therefore, River Eletec's Operating Margin % for the quarter that ended in Mar. 2026 was 3.39%.
The historical rank and industry rank for River Eletec's Operating Margin % or its related term are showing as below:
TSE:6666'
s Operating Margin % Range Over the Past 10 Years
Min: -16 Med: -0.55 Max: 16.77
Current: -1.22
TSE:6666's Operating Margin % is ranked worse than 70.97% of 2473
companies
in the Hardware industry
Industry Median: 3.88
vs TSE:6666: -1.22
River Eletec's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.
River Eletec (TSE:6666) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
River Eletec Operating Margin % Related Terms
River Eletec Operating Margin % Historical Data
* Premium members only.
The historical data trend for River Eletec's Operating 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.
TSE:6666 vs APH, GLW, TEL: Operating Margin % Comparison
For the Electronic Components subindustry, River Eletec's Operating Margin %, along with its competitors' market caps and Operating 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.
River Eletec Operating Margin % vs Hardware Industry
For the Hardware industry and Technology sector, River Eletec's Operating Margin % distribution charts can be found below:
* The bar in red indicates where River Eletec's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
River Eletec's Operating Margin % for the fiscal year that ended in Mar. 2026 is calculated as
* 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.
River Eletec (TSE:6666) has a Operating Margin % of 3.39% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on River Eletec and its competitors. According to the industry distribution chart, River Eletec ranks #1755 out of 2473 companies in the Hardware industry, placing it in the top 71%.
Is River Eletec's Operating Margin % too high?
River Eletec's current Operating Margin % is 3.39%. The Hardware industry median Operating Margin % is 3.88. River Eletec's value of 3.39% is 12.6% below this industry median. Based on the distribution chart, River Eletec ranks #1755 out of 2473 companies in the Hardware industry, which is below the industry midpoint. Overall, River Eletec has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does River Eletec's Operating Margin % compare to APH and GLW?
According to the Hardware industry distribution chart, River Eletec ranks #1755 out of 2473 companies for Operating Margin %. This places River Eletec in the lower half of its industry. The industry median Operating Margin % is 3.88. River Eletec's value of 3.39% is 12.6% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Hardware company?
The median Operating Margin % among Hardware companies is 3.88, based on 2,473 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. River Eletec's current Operating Margin % of 3.39% is 12.6% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on River Eletec and its competitors. For the Hardware industry, the median Operating Margin % is 3.88 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. River Eletec's current Operating Margin % is 3.39%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is River Eletec stock overvalued right now?
Based on GuruFocus' analysis, River Eletec (TSE:6666) is currently considered Significantly Overvalued. The stock's GF Value™ is 円482.59, compared to a current price of 円777.00 — trading 61% above its estimated fair value. The current Operating Margin % is 3.39% and 12.6% below the Hardware industry median of 3.88. River Eletec's overall GF Score™ is 51/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For River Eletec (TSE:6666), the current Operating Margin % is 3.39% 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 River Eletec (TSE:6666) Overvalued in 2026?
Based on GuruFocus' analysis, River Eletec stock appears to be overvalued.
The current stock price of 円777.00 is trading 61% above its estimated GF Value™ of 円482.59.
GuruFocus considers River Eletec to be Significantly Overvalued.
Key valuation signals for TSE:6666:
Operating Margin %: 3.39%
GF Value™: 円482.59 vs. price of 円777.00 (61% above fair value)
Industry Position: 12.6% below the Hardware median (#1755 of 2473)
No single metric tells the full story. See the TSE:6666 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
River Eletec Corp is a company engaged in developing and producing electronic parts such as quartz crystal units, crystal oscillators, and resistors. The company's products are used for electronic equipment, including digital cameras, DVD players, cellular phones, and watches. Its segments include the Crystal Product segment and Other Electronic Components segment.
51GF Score
Get the complete analysis for TSE:6666
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:6666 has been successfully added to your 
