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.
Jiin Yeeh Ding Enterprise Co (ROCO:8390) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Jiin Yeeh Ding Enterprise Co had a gross margin of 25.41% for the quarter that ended in Jun. 2026 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Jiin Yeeh Ding Enterprise Co Gross Margin % Related Terms
Jiin Yeeh Ding Enterprise Co Gross 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.
ROCO:8390 vs WM, RSG, WCN: Gross Margin % Comparison
For the Waste Management subindustry, Jiin Yeeh Ding Enterprise Co's Gross Margin %, along with its competitors' market caps and Gross 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.
Jiin Yeeh Ding Enterprise Co Gross Margin % vs Waste Management Industry
For the Waste Management industry and Industrials sector, Jiin Yeeh Ding Enterprise Co's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Jiin Yeeh Ding Enterprise Co's Gross Margin % 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Jiin Yeeh Ding Enterprise Co (ROCO:8390) has a Gross Margin % of 25.41% as of Jun. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on Jiin Yeeh Ding Enterprise Co and its competitors. This is 89% above median its historical median of 13.42. Over the past decade, Jiin Yeeh Ding Enterprise Co's Gross Margin % has ranged from 5.47 to 25.06. According to the industry distribution chart, Jiin Yeeh Ding Enterprise Co ranks #134 out of 235 companies in the Waste Management industry, placing it in the top 57%.
Is Jiin Yeeh Ding Enterprise Co's Gross Margin % too high?
Jiin Yeeh Ding Enterprise Co's current Gross Margin % of 25.41% is 89% above median its 10-year median of 13.42. Over the past 10 years, this metric has ranged from a low of 5.47 to a high of 25.06. The Waste Management industry median Gross Margin % is 27.49. Jiin Yeeh Ding Enterprise Co's value of 25.41% is 7.6% below this industry median. Based on the distribution chart, Jiin Yeeh Ding Enterprise Co ranks #134 out of 235 companies in the Waste Management industry, which is below the industry midpoint. Overall, Jiin Yeeh Ding Enterprise Co has a GF Score™ of 80/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Jiin Yeeh Ding Enterprise Co's Gross Margin % compare to WM and RSG?
According to the Waste Management industry distribution chart, Jiin Yeeh Ding Enterprise Co ranks #134 out of 235 companies for Gross Margin %. This places Jiin Yeeh Ding Enterprise Co in the lower half of its industry. The industry median Gross Margin % is 27.49. Jiin Yeeh Ding Enterprise Co's value of 25.41% is 7.6% below this benchmark. Historically, Jiin Yeeh Ding Enterprise Co's own Gross Margin % has ranged from 5.47 to 25.06 over the past decade. While the company's 10-year median is 13.42 vs. the industry median of 27.49, Jiin Yeeh Ding Enterprise Co has consistently been below 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 Gross Margin % for a Waste Management company?
The median Gross Margin % among Waste Management companies is 27.49, based on 235 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Jiin Yeeh Ding Enterprise Co's current Gross Margin % of 25.41% is 7.6% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Jiin Yeeh Ding Enterprise Co and its competitors. For the Waste Management industry, the median Gross Margin % is 27.49 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Jiin Yeeh Ding Enterprise Co's current Gross Margin % is 25.41%, which is 89% above median its own 10-year median of 13.42. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jiin Yeeh Ding Enterprise Co stock overvalued right now?
Based on GuruFocus' analysis, Jiin Yeeh Ding Enterprise Co (ROCO:8390) is currently considered Fairly Valued. The stock's GF Value™ is NT$85.54, compared to a current price of NT$92.40 — trading 8% above its estimated fair value. The current Gross Margin % is 25.41%, which is 89% above median its 10-year median of 13.42 and 7.6% below the Waste Management industry median of 27.49. Jiin Yeeh Ding Enterprise Co's overall GF Score™ is 80/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Jiin Yeeh Ding Enterprise Co (ROCO:8390), the current Gross Margin % is 25.41% 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 Jiin Yeeh Ding Enterprise Co (ROCO:8390) Overvalued in 2026?
Based on GuruFocus' analysis, Jiin Yeeh Ding Enterprise Co stock appears to be overvalued.
The current stock price of NT$92.40 is trading 8% above its estimated GF Value™ of NT$85.54.
GuruFocus considers Jiin Yeeh Ding Enterprise Co to be Fairly Valued.
Key valuation signals for ROCO:8390:
Gross Margin %: 25.41% (89% above median its 10-year median of 13.42)
GF Value™: NT$85.54 vs. price of NT$92.40 (8% above fair value)
Industry Position: 7.6% below the Waste Management median (#134 of 235)
No single metric tells the full story. See the ROCO:8390 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Jiin Yeeh Ding Enterprise Co Ltd is engaged in metal recycling and processing, scrap metal trading, and electronic waste removal and processing. The group generates maximum revenue from the sale of recycled copper, followed by gold and mixed metal, including gold, and other products. Geographically, it derives maximum revenue from Taiwan, and the rest from China, Northeast Asia, Europe, and Southeast Asia.
80GF Score
Get the complete analysis for ROCO:8390
Gross 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
ROCO:8390 has been successfully added to your 
