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
Rangdong Light Source & Vacuum Flask JSC had a gross margin of 25.28% for the quarter that ended in Mar. 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.
* 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.
STC:RAL vs VRT, BE, NVT: Gross Margin % Comparison
For the Electrical Equipment & Parts subindustry, Rangdong Light Source & Vacuum Flask JSC'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.
Rangdong Light Source & Vacuum Flask JSC Gross Margin % vs Industrial Products Industry
* 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.
Rangdong Light Source & Vacuum Flask JSC (STC:RAL) has a Gross Margin % of 25.28% as of Mar. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on Rangdong Light Source & Vacuum Flask JSC and its competitors. This is near median its historical median of 26.90. Over the past decade, Rangdong Light Source & Vacuum Flask JSC's Gross Margin % has ranged from 22.79 to 30.63. According to the industry distribution chart, Rangdong Light Source & Vacuum Flask JSC ranks #1770 out of 2998 companies in the Industrial Products industry, placing it in the top 59%.
Is Rangdong Light Source & Vacuum Flask JSC's Gross Margin % too high?
Rangdong Light Source & Vacuum Flask JSC's current Gross Margin % of 25.28% is near median its 10-year median of 26.90. Over the past 10 years, this metric has ranged from a low of 22.79 to a high of 30.63. The Industrial Products industry median Gross Margin % is 26.82. Rangdong Light Source & Vacuum Flask JSC's value of 25.28% is 5.7% below this industry median. Based on the distribution chart, Rangdong Light Source & Vacuum Flask JSC ranks #1770 out of 2998 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Rangdong Light Source & Vacuum Flask JSC has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Rangdong Light Source & Vacuum Flask JSC's Gross Margin % compare to VRT and BE?
According to the Industrial Products industry distribution chart, Rangdong Light Source & Vacuum Flask JSC ranks #1770 out of 2998 companies for Gross Margin %. This places Rangdong Light Source & Vacuum Flask JSC in the lower half of its industry. The industry median Gross Margin % is 26.82. Rangdong Light Source & Vacuum Flask JSC's value of 25.28% is 5.7% below this benchmark. Historically, Rangdong Light Source & Vacuum Flask JSC's own Gross Margin % has ranged from 22.79 to 30.63 over the past decade. While the company's 10-year median is 26.90 vs. the industry median of 26.82, Rangdong Light Source & Vacuum Flask JSC 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 an Industrial Products company?
The median Gross Margin % among Industrial Products companies is 26.82, based on 2,998 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. Rangdong Light Source & Vacuum Flask JSC's current Gross Margin % of 25.28% is 5.7% 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 Rangdong Light Source & Vacuum Flask JSC and its competitors. For the Industrial Products industry, the median Gross Margin % is 26.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rangdong Light Source & Vacuum Flask JSC's current Gross Margin % is 25.28%, which is near median its own 10-year median of 26.90. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rangdong Light Source & Vacuum Flask JSC stock overvalued right now?
Based on GuruFocus' analysis, Rangdong Light Source & Vacuum Flask JSC (STC:RAL) is currently considered Fairly Valued. The stock's GF Value™ is ₫90,635.89, compared to a current price of ₫83,200.00 — trading 8.2% below its estimated fair value. The current Gross Margin % is 25.28%, which is near median its 10-year median of 26.90 and 5.7% below the Industrial Products industry median of 26.82. Rangdong Light Source & Vacuum Flask JSC's overall GF Score™ is 70/100 with 7 warning signs 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 Rangdong Light Source & Vacuum Flask JSC (STC:RAL), the current Gross Margin % is 25.28% 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 Rangdong Light Source & Vacuum Flask JSC (STC:RAL) Overvalued in 2026?
Based on GuruFocus' analysis, Rangdong Light Source & Vacuum Flask JSC stock appears to be undervalued.
The current stock price of ₫83,200.00 is trading 8.2% below its estimated GF Value™ of ₫90,635.89.
GuruFocus considers Rangdong Light Source & Vacuum Flask JSC to be Fairly Valued.
Key valuation signals for STC:RAL:
Gross Margin %: 25.28% (near median its 10-year median of 26.90)
GF Value™: ₫90,635.89 vs. price of ₫83,200.00 (8.2% below fair value)
Industry Position: 5.7% below the Industrial Products median (#1770 of 2998)
No single metric tells the full story. See the STC:RAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rangdong Light Source & Vacuum Flask JSC Business Description
Rangdong Light Source & Vacuum Flask JSC is engaged in the manufacturing and trading of light products, electrical equipment, lighting tools, glass products and water thermos; service of science, technology and technology transfer; consulting and lighting design in civil and industrial; repairing and installing lighting equipment in civil and industrial and others.
70GF Score
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