Tenneco Clean Air IndiaNSE:TENNIND -3.59%19 Operating Margin % is 14.73% as of Mar. 2026, which is 21% above its 10-year median of 12.21. GuruFocus rates NSE:TENNIND with a GF Score™ of 19/100. The stock has 4 warning signs investors should review. Among 1,325 Vehicles & Parts companies, Tenneco Clean Air India ranks better than 90.79% on this metric.
The historical rank and industry rank for Tenneco Clean Air India's Operating Margin % or its related term are showing as below:
NSE:TENNIND'
s Operating Margin % Range Over the Past 10 Years
Min: 9.42 Med: 12.21 Max: 15.24
Current: 15.24
NSE:TENNIND's Operating Margin % is ranked better than 90.79% of 1325
companies
in the Vehicles & Parts industry
Industry Median: 4.86
vs NSE:TENNIND: 15.24
Tenneco Clean Air India (NSE:TENNIND) 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.
Tenneco Clean Air India Operating Margin % Related Terms
Tenneco Clean Air India Operating Margin % Historical Data
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The historical data trend for Tenneco Clean Air India'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.
NSE:TENNIND vs ORLY, AZO: Operating Margin % Comparison
For the Auto Parts subindustry, Tenneco Clean Air India'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.
Tenneco Clean Air India Operating Margin % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Tenneco Clean Air India's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Tenneco Clean Air India's Operating Margin % falls into.
Tenneco Clean Air India 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.
Tenneco Clean Air India's Operating Margin % for the fiscal year that ended in Mar. 2026 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.
Tenneco Clean Air India (NSE:TENNIND) has a Operating Margin % of 14.73% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Tenneco Clean Air India and its competitors. This is 21% above median its historical median of 12.21. Over the past decade, Tenneco Clean Air India's Operating Margin % has ranged from 9.42 to 15.24. According to the industry distribution chart, Tenneco Clean Air India ranks #122 out of 1325 companies in the Vehicles & Parts industry, placing it in the top 9.2%.
Is Tenneco Clean Air India's Operating Margin % too high?
Tenneco Clean Air India's current Operating Margin % of 14.73% is 21% above median its 10-year median of 12.21. Over the past 10 years, this metric has ranged from a low of 9.42 to a high of 15.24. The Vehicles & Parts industry median Operating Margin % is 4.86. Tenneco Clean Air India's value of 14.73% is 203.1% above this industry median. Based on the distribution chart, Tenneco Clean Air India ranks #122 out of 1325 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Tenneco Clean Air India has a GF Score™ of 19/100, reflecting its overall financial health beyond just this single metric.
How does Tenneco Clean Air India's Operating Margin % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Tenneco Clean Air India ranks #122 out of 1325 companies for Operating Margin %. This places Tenneco Clean Air India in the top 9% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 4.86. Tenneco Clean Air India's value of 14.73% is 203.1% above this benchmark. Historically, Tenneco Clean Air India's own Operating Margin % has ranged from 9.42 to 15.24 over the past decade. While the company's 10-year median is 12.21 vs. the industry median of 4.86, Tenneco Clean Air India 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 Vehicles & Parts company?
The median Operating Margin % among Vehicles & Parts companies is 4.86, based on 1,325 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. Tenneco Clean Air India's current Operating Margin % of 14.73% is 203.1% 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 Tenneco Clean Air India and its competitors. For the Vehicles & Parts industry, the median Operating Margin % is 4.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tenneco Clean Air India's current Operating Margin % is 14.73%, which is 21% above median its own 10-year median of 12.21. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tenneco Clean Air India stock overvalued right now?
Tenneco Clean Air India (NSE:TENNIND) has a current Operating Margin % of 14.73%. The current Operating Margin % is 14.73%, which is 21% above median its 10-year median of 12.21 and 203.1% above the Vehicles & Parts industry median of 4.86. Tenneco Clean Air India's overall GF Score™ is 19/100 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 Tenneco Clean Air India (NSE:TENNIND), the current Operating Margin % is 14.73% 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.
Tenneco Clean Air India Ltd manufactures and supplies critical, engineered and technology intensive clean air, powertrain and suspension solutions tailored for Indian OEMs and export markets. Its products are used in: (i) passenger vehicles, (ii) commercial vehicles, which comprises commercial trucks and off-highway vehicles, and (iii) industrial and other applications, which comprises generator sets, and small commercial vehicles. The company operates in two business divisions: Clean Air & Powertrain Solutions and Advanced Ride Technologies. It derives a majority portion of its revenue from the design, manufacture and sale of components and solutions to the Medium & Heavy Commercial Vehicles OEMs.
19GF Score
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