Tianyi Water Energy Solutions (ROCO:4530) Operating Margin %: 0.70% (As of Mar. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

ROCO:4530 Tianyi Water Energy Solutions Inc ROCO:4530
60 GF Score
Price NT$26.50
GF Value NT$39.47
Valuation Possible Value Trap
! 2 Warning Signs
View Full Analysis

What is Tianyi Water Energy Solutions Operating Margin %?

Tianyi Water Energy Solutions ROCO:4530 -1.12% 60 Operating Margin % is 0.70% as of Mar. 2026. GuruFocus rates ROCO:4530 with a GF Score™ of 60/100 and a GF Value™ of NT$39.47 (Possible Value Trap). The stock has 2 warning signs investors should review. Among 3,037 Industrial Products companies, Tianyi Water Energy Solutions ranks better than 84.99% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Tianyi Water Energy Solutions's Operating Income for the three months ended in Mar. 2026 was NT$0.5 Mil. Tianyi Water Energy Solutions's Revenue for the three months ended in Mar. 2026 was NT$70.2 Mil. Therefore, Tianyi Water Energy Solutions's Operating Margin % for the quarter that ended in Mar. 2026 was 0.70%.

The historical rank and industry rank for Tianyi Water Energy Solutions's Operating Margin % or its related term are showing as below:

ROCO:4530' s Operating Margin % Range Over the Past 10 Years
Min: -75.16   Med: -31.66   Max: 30.65
Current: 16.38


ROCO:4530's Operating Margin % is ranked better than
84.99% of 3037 companies
in the Industrial Products industry
Industry Median: 6.53 vs ROCO:4530: 16.38

Tianyi Water Energy Solutions's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

Tianyi Water Energy Solutions's Operating Income for the three months ended in Mar. 2026 was NT$0.5 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was NT$60.3 Mil.


Tianyi Water Energy Solutions  (ROCO:4530) 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 Nokia’s 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.


Tianyi Water Energy Solutions Operating Margin % Related Terms


Tianyi Water Energy Solutions Operating Margin % Historical Data

* Premium members only.

The historical data trend for Tianyi Water Energy Solutions'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.

Tianyi Water Energy Solutions Operating Margin % Chart

Tianyi Water Energy Solutions Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -17.95 -6.15 -25.25 30.65 17.77

Tianyi Water Energy Solutions Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Operating Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -0.05 15.64 12.89 27.02 0.70

ROCO:4530 vs CRS, ATI, MLI: Operating Margin % Comparison

For the Metal Fabrication subindustry, Tianyi Water Energy Solutions'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.


Tianyi Water Energy Solutions Operating Margin % vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Tianyi Water Energy Solutions's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Tianyi Water Energy Solutions's Operating Margin % falls into.


ROCO:4530
60GF Score
Tianyi Water Energy Solutions Inc ROCO:4530
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tianyi Water Energy Solutions 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.

Tianyi Water Energy Solutions's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=61.996 / 348.893
=17.77 %

Tianyi Water Energy Solutions's Operating Margin % for the quarter that ended in Mar. 2026 is calculated as

Operating Margin %=Operating Income (Q: Mar. 2026 ) / Revenue (Q: Mar. 2026 )
=0.489 / 70.186
=0.70 %

* 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.

Frequently Asked Questions Learn more about Operating Margin % →
What does a Operating Margin % of 0.70% mean?
Tianyi Water Energy Solutions (ROCO:4530) has a Operating Margin % of 0.70% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Tianyi Water Energy Solutions and its competitors. According to the industry distribution chart, Tianyi Water Energy Solutions ranks #456 out of 3037 companies in the Industrial Products industry, placing it in the top 15%.
Is Tianyi Water Energy Solutions' Operating Margin % too high?
Tianyi Water Energy Solutions' current Operating Margin % is 0.70%. The Industrial Products industry median Operating Margin % is 6.53. Tianyi Water Energy Solutions' value of 0.70% is 89.3% below this industry median. Based on the distribution chart, Tianyi Water Energy Solutions ranks #456 out of 3037 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Tianyi Water Energy Solutions has a GF Score™ of 60/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tianyi Water Energy Solutions' Operating Margin % compare to CRS and ATI?
According to the Industrial Products industry distribution chart, Tianyi Water Energy Solutions ranks #456 out of 3037 companies for Operating Margin %. This places Tianyi Water Energy Solutions in the top 15% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.53. Tianyi Water Energy Solutions' value of 0.70% is 89.3% 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 an Industrial Products company?
The median Operating Margin % among Industrial Products companies is 6.53, based on 3,037 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. Tianyi Water Energy Solutions's current Operating Margin % of 0.70% is 89.3% 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 Tianyi Water Energy Solutions and its competitors. For the Industrial Products industry, the median Operating Margin % is 6.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tianyi Water Energy Solutions's current Operating Margin % is 0.70%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tianyi Water Energy Solutions stock overvalued right now?
Based on GuruFocus' analysis, Tianyi Water Energy Solutions (ROCO:4530) is currently considered Possible Value Trap. The stock's GF Value™ is NT$39.47, compared to a current price of NT$26.50 — trading 32.9% below its estimated fair value. The current Operating Margin % is 0.70% and 89.3% below the Industrial Products industry median of 6.53. Tianyi Water Energy Solutions' overall GF Score™ is 60/100 with 2 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 Tianyi Water Energy Solutions (ROCO:4530), the current Operating Margin % is 0.70% 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 Tianyi Water Energy Solutions (ROCO:4530) Overvalued in 2026?

Based on GuruFocus' analysis, Tianyi Water Energy Solutions stock appears to be undervalued. The current stock price of NT$26.50 is trading 32.9% below its estimated GF Value™ of NT$39.47. GuruFocus considers Tianyi Water Energy Solutions to be Possible Value Trap.

Key valuation signals for ROCO:4530:

  • Operating Margin %: 0.70%
  • GF Value™: NT$39.47 vs. price of NT$26.50 (32.9% below fair value)
  • GF Score™: 60/100 with 2 warning signs
  • Industry Position: 89.3% below the Industrial Products median (#456 of 3037)

No single metric tells the full story. See the ROCO:4530 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tianyi Water Energy Solutions Business Description

Address Sec. 2, Chang\'an E. Road, 12th Floor-4, No. 112, Zhongshan Dist, Taipei, TWN, 104
Honyi International Co Ltd is engaged in processing and trading of metal forging, treatment of wastewater and sewage, wholesale of industrial additives, and construction of environmental protection engineering projects. Its segments include catering segment, metal forging and processing segment, environmental engineering segment, and other segments. The majority of the revenue is derived from the environmental engineering segment.
60GF Score

Get the complete analysis for ROCO:4530

Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$26.50
Price
NT$39.47
GF Value