BOC Kenya (NAI:BOC) Operating Margin %: 24.57% (As of Dec. 2025) — 120% Above Median

Author: Vera Yuan Vera Yuan
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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.
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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.

NAI:BOC BOC Kenya PLC NAI:BOC
72 GF Score
Price KES171.00
GF Value KES90.18
Valuation Significantly Overvalued
! 3 Warning Signs
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What is BOC Kenya Operating Margin %?

BOC Kenya NAI:BOC +0.44% 72 Operating Margin % is 24.57% as of Dec. 2025, which is 120% above its 10-year median of 11.16. GuruFocus rates NAI:BOC with a GF Score™ of 72/100 and a GF Value™ of KES90.18 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 1,578 Chemicals companies, BOC Kenya ranks better than 95.44% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. BOC Kenya's Operating Income for the six months ended in Dec. 2025 was KES351 Mil. BOC Kenya's Revenue for the six months ended in Dec. 2025 was KES1,427 Mil. Therefore, BOC Kenya's Operating Margin % for the quarter that ended in Dec. 2025 was 24.57%.

Good Sign:

BOC Kenya PLC operating margin is expanding. Margin expansion is usually a good sign.

The historical rank and industry rank for BOC Kenya's Operating Margin % or its related term are showing as below:

NAI:BOC' s Operating Margin % Range Over the Past 10 Years
Min: 3.66   Med: 11.16   Max: 24.57
Current: 24.57


NAI:BOC's Operating Margin % is ranked better than
95.44% of 1578 companies
in the Chemicals industry
Industry Median: 6.03 vs NAI:BOC: 24.57

BOC Kenya's 5-Year Average Operating Margin % Growth Rate was 23.00% per year.

BOC Kenya's Operating Income for the six months ended in Dec. 2025 was KES351 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was KES351 Mil.


BOC Kenya  (NAI:BOC) 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.


BOC Kenya Operating Margin % Related Terms


BOC Kenya Operating Margin % Historical Data

* Premium members only.

The historical data trend for BOC Kenya'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.

BOC Kenya Operating Margin % Chart

BOC Kenya 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 9.06 14.66 19.31 21.36 24.57

BOC Kenya Semi-Annual Data
Dec12 Dec13 Dec14 Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
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 9.06 14.66 19.31 21.36 24.57

NAI:BOC vs DOW: Operating Margin % Comparison

For the Chemicals subindustry, BOC Kenya'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.


BOC Kenya Operating Margin % vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, BOC Kenya's Operating Margin % distribution charts can be found below:

* The bar in red indicates where BOC Kenya's Operating Margin % falls into.


NAI:BOC
72GF Score
BOC Kenya PLC NAI:BOC
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

BOC Kenya 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.

BOC Kenya'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 )
=350.606 / 1427.046
=24.57 %

BOC Kenya's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=350.606 / 1427.046
=24.57 %

* 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 24.57% mean?
BOC Kenya (NAI:BOC) has a Operating Margin % of 24.57% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on BOC Kenya and its competitors. This is 120% above median its historical median of 11.16. Over the past decade, BOC Kenya's Operating Margin % has ranged from 3.66 to 24.57. According to the industry distribution chart, BOC Kenya ranks #72 out of 1578 companies in the Chemicals industry, placing it in the top 4.6%.
Is BOC Kenya's Operating Margin % too high?
BOC Kenya's current Operating Margin % of 24.57% is 120% above median its 10-year median of 11.16. Over the past 10 years, this metric has ranged from a low of 3.66 to a high of 24.57. The Chemicals industry median Operating Margin % is 6.03. BOC Kenya's value of 24.57% is 307.5% above this industry median. Based on the distribution chart, BOC Kenya ranks #72 out of 1578 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, BOC Kenya has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does BOC Kenya's Operating Margin % compare to DOW?
According to the Chemicals industry distribution chart, BOC Kenya ranks #72 out of 1578 companies for Operating Margin %. This places BOC Kenya in the top 5% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.03. BOC Kenya's value of 24.57% is 307.5% above this benchmark. Historically, BOC Kenya's own Operating Margin % has ranged from 3.66 to 24.57 over the past decade. While the company's 10-year median is 11.16 vs. the industry median of 6.03, BOC Kenya 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 Chemicals company?
The median Operating Margin % among Chemicals companies is 6.03, based on 1,578 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. BOC Kenya's current Operating Margin % of 24.57% is 307.5% 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 BOC Kenya and its competitors. For the Chemicals industry, the median Operating Margin % is 6.03 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. BOC Kenya's current Operating Margin % is 24.57%, which is 120% above median its own 10-year median of 11.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BOC Kenya stock overvalued right now?
Based on GuruFocus' analysis, BOC Kenya (NAI:BOC) is currently considered Significantly Overvalued. The stock's GF Value™ is KES90.18, compared to a current price of KES171.00 — trading 89.6% above its estimated fair value. The current Operating Margin % is 24.57%, which is 120% above median its 10-year median of 11.16 and 307.5% above the Chemicals industry median of 6.03. BOC Kenya's overall GF Score™ is 72/100 with 3 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 BOC Kenya (NAI:BOC), the current Operating Margin % is 24.57% as of Dec. 2025. 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 BOC Kenya (NAI:BOC) Overvalued in 2026?

Based on GuruFocus' analysis, BOC Kenya stock appears to be overvalued. The current stock price of KES171.00 is trading 89.6% above its estimated GF Value™ of KES90.18. GuruFocus considers BOC Kenya to be Significantly Overvalued.

Key valuation signals for NAI:BOC:

  • Operating Margin %: 24.57% (120% above median its 10-year median of 11.16)
  • GF Value™: KES90.18 vs. price of KES171.00 (89.6% above fair value)
  • GF Score™: 72/100 with 3 warning signs
  • Industry Position: 307.5% above the Chemicals median (#72 of 1578)

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


BOC Kenya Business Description

Address 14 Kitui Road, off Kampala Road, P.O. Box 18010, Industrial Area, Nairobi, KEN, 00500
BOC Kenya PLC is involved in the manufacture and sale of industrial and medical gases and welding products. Its product range consists of Bulk gases, Packaged gases, and Engineering services. Bulk gases include liquid oxygen and liquid nitrogen. Packaged gases comprise medical gases, industrial gases, special gas mixtures, and liquefied petroleum gas. The engineering services include supplies of medical equipment, construction of medical and other gas pipelines, liquefied petroleum gas installations, tanks and pipelines, industrial gas storage and pipeline installations, and related maintenance services. The company generates the majority of its revenue from the sale of medical and industrial gases.
72GF Score

Get the complete analysis for NAI:BOC

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

KES171.00
Price
KES90.18
GF Value