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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.
Yangtze Optical Electronic CoSHSE:688143 -9.09%67 Operating Margin % is 7.55% as of Mar. 2026, which is 71% below its 10-year median of 25.93. GuruFocus rates SHSE:688143 with a GF Score™ of 67/100 and a GF Value™ of ¥46.18 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 2,476 Hardware companies, Yangtze Optical Electronic Co ranks better than 73.59% on this metric.
Yangtze Optical Electronic Co Ltd has recorded a loss in operating income at least once over the past 3 years.
Yangtze Optical Electronic Co (SHSE:688143) 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.
Yangtze Optical Electronic Co Operating Margin % Related Terms
Yangtze Optical Electronic Co Operating 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.
Yangtze Optical Electronic Co Operating Margin % Chart
SHSE:688143 vs APH, GLW: Operating Margin % Comparison
For the Electronic Components subindustry, Yangtze Optical Electronic Co'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.
Yangtze Optical Electronic Co Operating Margin % vs Hardware Industry
For the Hardware industry and Technology sector, Yangtze Optical Electronic Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Yangtze Optical Electronic Co's Operating Margin % falls into.
Yangtze Optical Electronic Co Operating Margin % Calculation
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.
* 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.
Yangtze Optical Electronic Co (SHSE:688143) has a Operating Margin % of 7.55% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Yangtze Optical Electronic Co and its competitors. This is 71% below median its historical median of 25.93. Over the past decade, Yangtze Optical Electronic Co's Operating Margin % has ranged from 6.00 to 35.34. According to the industry distribution chart, Yangtze Optical Electronic Co ranks #654 out of 2476 companies in the Hardware industry, placing it in the top 26.4%.
Is Yangtze Optical Electronic Co's Operating Margin % too high?
Yangtze Optical Electronic Co's current Operating Margin % of 7.55% is 71% below median its 10-year median of 25.93. Over the past 10 years, this metric has ranged from a low of 6.00 to a high of 35.34. The Hardware industry median Operating Margin % is 3.81. Yangtze Optical Electronic Co's value of 7.55% is 98.2% above this industry median. Based on the distribution chart, Yangtze Optical Electronic Co ranks #654 out of 2476 companies in the Hardware industry, which is above the industry midpoint. Overall, Yangtze Optical Electronic Co has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yangtze Optical Electronic Co's Operating Margin % compare to APH and GLW?
According to the Hardware industry distribution chart, Yangtze Optical Electronic Co ranks #654 out of 2476 companies for Operating Margin %. This puts Yangtze Optical Electronic Co in the upper half of its industry. The industry median Operating Margin % is 3.81. Yangtze Optical Electronic Co's value of 7.55% is 98.2% above this benchmark. Historically, Yangtze Optical Electronic Co's own Operating Margin % has ranged from 6.00 to 35.34 over the past decade. While the company's 10-year median is 25.93 vs. the industry median of 3.81, Yangtze Optical Electronic 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 Operating Margin % for a Hardware company?
The median Operating Margin % among Hardware companies is 3.81, based on 2,476 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. Yangtze Optical Electronic Co's current Operating Margin % of 7.55% is 98.2% 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 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 Yangtze Optical Electronic Co and its competitors. For the Hardware industry, the median Operating Margin % is 3.81 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yangtze Optical Electronic Co's current Operating Margin % is 7.55%, which is 71% below median its own 10-year median of 25.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yangtze Optical Electronic Co stock overvalued right now?
Based on GuruFocus' analysis, Yangtze Optical Electronic Co (SHSE:688143) is currently considered Significantly Overvalued. The stock's GF Value™ is ¥46.18, compared to a current price of ¥100.00 — trading 116.5% above its estimated fair value. The current Operating Margin % is 7.55%, which is 71% below median its 10-year median of 25.93 and 98.2% above the Hardware industry median of 3.81. Yangtze Optical Electronic Co's overall GF Score™ is 67/100 with 8 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 Yangtze Optical Electronic Co (SHSE:688143), the current Operating Margin % is 7.55% 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 Yangtze Optical Electronic Co (SHSE:688143) Overvalued in 2026?
Based on GuruFocus' analysis, Yangtze Optical Electronic Co stock appears to be overvalued.
The current stock price of ¥100.00 is trading 116.5% above its estimated GF Value™ of ¥46.18.
GuruFocus considers Yangtze Optical Electronic Co to be Significantly Overvalued.
Key valuation signals for SHSE:688143:
Operating Margin %: 7.55% (71% below median its 10-year median of 25.93)
GF Value™: ¥46.18 vs. price of ¥100.00 (116.5% above fair value)
Industry Position: 98.2% above the Hardware median (#654 of 2476)
No single metric tells the full story. See the SHSE:688143 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Yangtze Optical Electronic Co Business Description
Yangtze Optical Electronic Co Ltd is engaged in the research and development, production, and sales of products in five fields, including special optical fiber and cable, special optical devices, new materials, high-end equipment, and optoelectronic systems, and provides customers with measurement calibration and testing services for optoelectronic first-level metering stations.
67GF Score
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