SEI Investments CoSEIC -0.80%99 Operating Margin % is 30.46% as of Mar. 2026, which is 14% above its 10-year median of 26.65. GuruFocus rates SEIC with a GF Score™ of 99/100 and a GF Value™ of $90.31 (Fairly Valued). The stock has 5 warning signs investors should review. Among 656 Asset Management companies, SEI Investments Co ranks better than 59.6% on this metric.
SEI Investments Co (NAS:SEIC) 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.
SEI Investments Co Operating Margin % Related Terms
SEI Investments Co Operating Margin % Historical Data
* Premium members only.
The historical data trend for SEI Investments Co'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.
SEIC vs EQH, CRBG, IVZ: Operating Margin % Comparison
For the Asset Management subindustry, SEI Investments Co'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.
SEI Investments Co Operating Margin % vs Asset Management Industry
For the Asset Management industry and Financial Services sector, SEI Investments Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where SEI Investments Co'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.
SEI Investments Co'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.
SEI Investments Co (SEIC) has a Operating Margin % of 30.46% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on SEI Investments Co and its competitors. This is 14% above median its historical median of 26.65. Over the past decade, SEI Investments Co's Operating Margin % has ranged from 22.11 to 28.85. According to the industry distribution chart, SEI Investments Co ranks #265 out of 656 companies in the Asset Management industry, placing it in the top 40.4%.
Is SEI Investments Co's Operating Margin % too high?
SEI Investments Co's current Operating Margin % of 30.46% is 14% above median its 10-year median of 26.65. Over the past 10 years, this metric has ranged from a low of 22.11 to a high of 28.85. The Asset Management industry median Operating Margin % is 16.73. SEI Investments Co's value of 30.46% is 82.1% above this industry median. Based on the distribution chart, SEI Investments Co ranks #265 out of 656 companies in the Asset Management industry, which is above the industry midpoint. Overall, SEI Investments Co has a GF Score™ of 99/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does SEI Investments Co's Operating Margin % compare to EQH and CRBG?
According to the Asset Management industry distribution chart, SEI Investments Co ranks #265 out of 656 companies for Operating Margin %. This puts SEI Investments Co in the upper half of its industry. The industry median Operating Margin % is 16.73. SEI Investments Co's value of 30.46% is 82.1% above this benchmark. Historically, SEI Investments Co's own Operating Margin % has ranged from 22.11 to 28.85 over the past decade. While the company's 10-year median is 26.65 vs. the industry median of 16.73, SEI Investments Co 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 Asset Management company?
The median Operating Margin % among Asset Management companies is 16.73, based on 656 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. SEI Investments Co's current Operating Margin % of 30.46% is 82.1% 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 SEI Investments Co and its competitors. For the Asset Management industry, the median Operating Margin % is 16.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SEI Investments Co's current Operating Margin % is 30.46%, which is 14% above median its own 10-year median of 26.65. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SEI Investments Co stock overvalued right now?
Based on GuruFocus' analysis, SEI Investments Co (SEIC) is currently considered Fairly Valued. The stock's GF Value™ is $90.31, compared to a current price of $89.49 — trading 0.9% below its estimated fair value. The current Operating Margin % is 30.46%, which is 14% above median its 10-year median of 26.65 and 82.1% above the Asset Management industry median of 16.73. SEI Investments Co's overall GF Score™ is 99/100 with 5 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 SEI Investments Co (SEIC), the current Operating Margin % is 30.46% 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 SEI Investments Co (SEIC) Overvalued in 2026?
Based on GuruFocus' analysis, SEI Investments Co stock appears to be undervalued.
The current stock price of $89.49 is trading 0.9% below its estimated GF Value™ of $90.31.
GuruFocus considers SEI Investments Co to be Fairly Valued.
Key valuation signals for SEIC:
Operating Margin %: 30.46% (14% above median its 10-year median of 26.65)
GF Value™: $90.31 vs. price of $89.49 (0.9% below fair value)
Industry Position: 82.1% above the Asset Management median (#265 of 656)
No single metric tells the full story. See the SEIC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
SEI Investments provides investment processing, management, and operations services to financial institutions, asset managers, asset owners, and financial advisors in four material segments: private banks, investment advisors, institutional investors, and investment managers. SEI also has a minority interest in LSV Asset Management, a value equity asset manager with about $99 billion in assets under management. As of December 2025, SEI (including LSV) manages, administers, or advises about $1.9 trillion in assets.
99GF Score
Get the complete analysis for SEIC
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
SEIC has been successfully added to your 
