Dong Nai Water JSCHSTC:DNW 79 Operating Margin % is 27.25% as of Mar. 2026, which is 5% above its 10-year median of 25.96. GuruFocus rates HSTC:DNW with a GF Score™ of 79/100 and a GF Value™ of ₫33,632.19 (Fairly Valued). The stock has 4 warning signs investors should review. Among 499 Utilities - Regulated companies, Dong Nai Water JSC ranks better than 76.55% on this metric.
Dong Nai Water JSC operating margin has been in a 5-year decline. The average rate of decline per year is -2.5%.
The historical rank and industry rank for Dong Nai Water JSC's Operating Margin % or its related term are showing as below:
HSTC:DNW'
s Operating Margin % Range Over the Past 10 Years
Min: 24.58 Med: 25.96 Max: 28.75
Current: 24.58
HSTC:DNW's Operating Margin % is ranked better than 76.55% of 499
companies
in the Utilities - Regulated industry
Industry Median: 14.97
vs HSTC:DNW: 24.58
Dong Nai Water JSC's 5-Year Average Operating Margin % Growth Rate was -2.50% per year.
Dong Nai Water JSC (HSTC:DNW) 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.
Dong Nai Water JSC Operating Margin % Related Terms
Dong Nai Water JSC Operating Margin % Historical Data
* Premium members only.
The historical data trend for Dong Nai Water JSC'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.
HSTC:DNW vs AWK, WTRG, AWR: Operating Margin % Comparison
For the Utilities - Regulated Water subindustry, Dong Nai Water JSC'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.
Dong Nai Water JSC Operating Margin % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Dong Nai Water JSC's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Dong Nai Water JSC'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.
Dong Nai Water JSC's Operating Margin % for the fiscal year that ended in Dec. 2025 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.
Dong Nai Water JSC (HSTC:DNW) has a Operating Margin % of 27.25% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Dong Nai Water JSC and its competitors. This is near median its historical median of 25.96. Over the past decade, Dong Nai Water JSC's Operating Margin % has ranged from 24.58 to 28.75. According to the industry distribution chart, Dong Nai Water JSC ranks #117 out of 499 companies in the Utilities - Regulated industry, placing it in the top 23.4%.
Is Dong Nai Water JSC's Operating Margin % too high?
Dong Nai Water JSC's current Operating Margin % of 27.25% is near median its 10-year median of 25.96. Over the past 10 years, this metric has ranged from a low of 24.58 to a high of 28.75. The Utilities - Regulated industry median Operating Margin % is 14.97. Dong Nai Water JSC's value of 27.25% is 82% above this industry median. Based on the distribution chart, Dong Nai Water JSC ranks #117 out of 499 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Dong Nai Water JSC has a GF Score™ of 79/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Dong Nai Water JSC's Operating Margin % compare to AWK and WTRG?
According to the Utilities - Regulated industry distribution chart, Dong Nai Water JSC ranks #117 out of 499 companies for Operating Margin %. This places Dong Nai Water JSC in the top 23% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 14.97. Dong Nai Water JSC's value of 27.25% is 82% above this benchmark. Historically, Dong Nai Water JSC's own Operating Margin % has ranged from 24.58 to 28.75 over the past decade. While the company's 10-year median is 25.96 vs. the industry median of 14.97, Dong Nai Water JSC 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 an Utilities - Regulated company?
The median Operating Margin % among Utilities - Regulated companies is 14.97, based on 499 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. Dong Nai Water JSC's current Operating Margin % of 27.25% is 82% 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 Dong Nai Water JSC and its competitors. For the Utilities - Regulated industry, the median Operating Margin % is 14.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Dong Nai Water JSC's current Operating Margin % is 27.25%, which is near median its own 10-year median of 25.96. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Dong Nai Water JSC stock overvalued right now?
Based on GuruFocus' analysis, Dong Nai Water JSC (HSTC:DNW) is currently considered Fairly Valued. The stock's GF Value™ is ₫33,632.19, compared to a current price of ₫32,900.00 — trading 2.2% below its estimated fair value. The current Operating Margin % is 27.25%, which is near median its 10-year median of 25.96 and 82% above the Utilities - Regulated industry median of 14.97. Dong Nai Water JSC's overall GF Score™ is 79/100 with 4 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 Dong Nai Water JSC (HSTC:DNW), the current Operating Margin % is 27.25% 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 Dong Nai Water JSC (HSTC:DNW) Overvalued in 2026?
Based on GuruFocus' analysis, Dong Nai Water JSC stock appears to be undervalued.
The current stock price of ₫32,900.00 is trading 2.2% below its estimated GF Value™ of ₫33,632.19.
GuruFocus considers Dong Nai Water JSC to be Fairly Valued.
Key valuation signals for HSTC:DNW:
Operating Margin %: 27.25% (near median its 10-year median of 25.96)
GF Value™: ₫33,632.19 vs. price of ₫32,900.00 (2.2% below fair value)
Industry Position: 82% above the Utilities - Regulated median (#117 of 499)
No single metric tells the full story. See the HSTC:DNW stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Dong Nai Water JSC is engaged in exploiting, filtering water for urban and industrial activities, and distributing clean water; providing specialized water system installation services; and producing bottled pure water. The Group mainly produces and supplies clean water and operates only in Dong Nai Province.
79GF Score
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