SempraSTU:SE4 +0.77%52 Operating Margin % is 29.82% as of Mar. 2026, which is 34% above its 10-year median of 22.18. GuruFocus rates STU:SE4 with a GF Score™ of 52/100 and a GF Value™ of €66.71 (Modestly Overvalued). The stock has 9 warning signs investors should review. Among 499 Utilities - Regulated companies, Sempra ranks better than 73.55% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Sempra's Operating Income for the
three
months ended in Mar. 2026 was €943 Mil. Sempra's Revenue for the
three
months ended in Mar. 2026 was €3,162 Mil. Therefore, Sempra's Operating Margin % for the quarter that ended in Mar. 2026 was 29.82%.
The historical rank and industry rank for Sempra's Operating Margin % or its related term are showing as below:
STU:SE4'
s Operating Margin % Range Over the Past 10 Years
Min: 15.86 Med: 22.18 Max: 24.91
Current: 23.69
STU:SE4's Operating Margin % is ranked better than 73.55% of 499
companies
in the Utilities - Regulated industry
Industry Median: 14.97
vs STU:SE4: 23.69
Sempra's 5-Year Average Operating Margin % Growth Rate was -0.70% per year.
Sempra's Operating Income for the
three
months ended in Mar. 2026 was €943 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was €2,761 Mil.
Sempra (STU:SE4) 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.
Sempra Operating Margin % Related Terms
Sempra Operating Margin % Historical Data
* Premium members only.
The historical data trend for Sempra'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.
STU:SE4 vs AES, AVA, UTL: Operating Margin % Comparison
For the Utilities - Diversified subindustry, Sempra'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.
Sempra Operating Margin % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Sempra's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sempra'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.
Sempra'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.
Sempra (STU:SE4) has a Operating Margin % of 29.82% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Sempra and its competitors. This is 34% above median its historical median of 22.18. Over the past decade, Sempra's Operating Margin % has ranged from 15.86 to 24.91. According to the industry distribution chart, Sempra ranks #132 out of 499 companies in the Utilities - Regulated industry, placing it in the top 26.5%.
Is Sempra's Operating Margin % too high?
Sempra's current Operating Margin % of 29.82% is 34% above median its 10-year median of 22.18. Over the past 10 years, this metric has ranged from a low of 15.86 to a high of 24.91. The Utilities - Regulated industry median Operating Margin % is 14.97. Sempra's value of 29.82% is 99.2% above this industry median. Based on the distribution chart, Sempra ranks #132 out of 499 companies in the Utilities - Regulated industry, which is above the industry midpoint. Overall, Sempra has a GF Score™ of 52/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sempra's Operating Margin % compare to AES and AVA?
According to the Utilities - Regulated industry distribution chart, Sempra ranks #132 out of 499 companies for Operating Margin %. This puts Sempra in the upper half of its industry. The industry median Operating Margin % is 14.97. Sempra's value of 29.82% is 99.2% above this benchmark. Historically, Sempra's own Operating Margin % has ranged from 15.86 to 24.91 over the past decade. While the company's 10-year median is 22.18 vs. the industry median of 14.97, Sempra 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. Sempra's current Operating Margin % of 29.82% is 99.2% 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 Sempra 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. Sempra's current Operating Margin % is 29.82%, which is 34% above median its own 10-year median of 22.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sempra stock overvalued right now?
Based on GuruFocus' analysis, Sempra (STU:SE4) is currently considered Modestly Overvalued. The stock's GF Value™ is €66.71, compared to a current price of €81.50 — trading 22.2% above its estimated fair value. The current Operating Margin % is 29.82%, which is 34% above median its 10-year median of 22.18 and 99.2% above the Utilities - Regulated industry median of 14.97. Sempra's overall GF Score™ is 52/100 with 9 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 Sempra (STU:SE4), the current Operating Margin % is 29.82% 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 Sempra (STU:SE4) Overvalued in 2026?
Based on GuruFocus' analysis, Sempra stock appears to be overvalued.
The current stock price of €81.50 is trading 22.2% above its estimated GF Value™ of €66.71.
GuruFocus considers Sempra to be Modestly Overvalued.
Key valuation signals for STU:SE4:
Operating Margin %: 29.82% (34% above median its 10-year median of 22.18)
GF Value™: €66.71 vs. price of €81.50 (22.2% above fair value)
Industry Position: 99.2% above the Utilities - Regulated median (#132 of 499)
No single metric tells the full story. See the STU:SE4 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sempra serves one of the largest utility customer bases in the United States. It distributes natural gas and electricity in Southern California and owns 80% of Oncor, a transmission and distribution business in Texas. Sempra Infrastructure Partners, 25% owned by Sempra, owns and operates liquefied natural gas facilities in North America and infrastructure in Mexico.
52GF Score
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