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Power IntegrationsSTU:PWI +0.69%84 ROE % is 1.98% as of Mar. 2026, which is 80% below its 10-year median of 9.89. GuruFocus rates STU:PWI with a GF Score™ of 84/100 and a GF Value™ of €61.35 (Modestly Undervalued). The stock has 6 warning signs investors should review. Among 1,002 Semiconductors companies, Power Integrations ranks worse than 58.28% on this metric.
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is four times the quarterly (Mar. 2026) net income data. The Revenue data used here is four times the quarterly (Mar. 2026) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
Power Integrations ROE % Related Terms
Power Integrations ROE % Historical Data
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The historical data trend for Power Integrations's ROE % 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.
For the Semiconductors subindustry, Power Integrations's ROE %, along with its competitors' market caps and ROE % 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.
Power Integrations ROE % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Power Integrations's ROE % distribution charts can be found below:
* The bar in red indicates where Power Integrations's ROE % falls into.
* 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.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is four times the quarterly (Mar. 2026) net income data.
ROE % is displayed in the 30-year financial page.
Power Integrations (STU:PWI) has a ROE % of 1.98% as of Mar. 2026. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Power Integrations and its competitors. This is 80% below median its historical median of 9.89. Over the past decade, Power Integrations' ROE % has ranged from 2.40 to 30.91. According to the industry distribution chart, Power Integrations ranks #584 out of 1002 companies in the Semiconductors industry, placing it in the top 58.3%.
Is Power Integrations' ROE % too high?
Power Integrations' current ROE % of 1.98% is 80% below median its 10-year median of 9.89. Over the past 10 years, this metric has ranged from a low of 2.40 to a high of 30.91. The Semiconductors industry median ROE % is 4.83. Power Integrations' value of 1.98% is 59% below this industry median. Based on the distribution chart, Power Integrations ranks #584 out of 1002 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Power Integrations has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Power Integrations' ROE % compare to PI and LASR?
According to the Semiconductors industry distribution chart, Power Integrations ranks #584 out of 1002 companies for ROE %. This places Power Integrations in the lower half of its industry. The industry median ROE % is 4.83. Power Integrations' value of 1.98% is 59% below this benchmark. Historically, Power Integrations' own ROE % has ranged from 2.40 to 30.91 over the past decade. While the company's 10-year median is 9.89 vs. the industry median of 4.83, Power Integrations has consistently been below 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 ROE % for a Semiconductors company?
The median ROE % among Semiconductors companies is 4.83, based on 1,002 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Power Integrations's current ROE % of 1.98% is 59% 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Power Integrations and its competitors. For the Semiconductors industry, the median ROE % is 4.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Power Integrations's current ROE % is 1.98%, which is 80% below median its own 10-year median of 9.89. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Power Integrations stock overvalued right now?
Based on GuruFocus' analysis, Power Integrations (STU:PWI) is currently considered Modestly Undervalued. The stock's GF Value™ is €61.35, compared to a current price of €52.80 — trading 13.9% below its estimated fair value. The current ROE % is 1.98%, which is 80% below median its 10-year median of 9.89 and 59% below the Semiconductors industry median of 4.83. Power Integrations' overall GF Score™ is 84/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Power Integrations (STU:PWI), the current ROE % is 1.98% 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 Power Integrations (STU:PWI) Overvalued in 2026?
Based on GuruFocus' analysis, Power Integrations stock appears to be undervalued.
The current stock price of €52.80 is trading 13.9% below its estimated GF Value™ of €61.35.
GuruFocus considers Power Integrations to be Modestly Undervalued.
Key valuation signals for STU:PWI:
ROE %: 1.98% (80% below median its 10-year median of 9.89)
GF Value™: €61.35 vs. price of €52.80 (13.9% below fair value)
Industry Position: 59% below the Semiconductors median (#584 of 1002)
No single metric tells the full story. See the STU:PWI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Power Integrations Inc designs, develops, and markets analog and mixed-signal integrated circuits (ICs) and other electronic components and circuitry used in high-voltage power conversion. Products are used in power converters that convert electricity from a high-voltage source to the type of power required for a specified downstream use. Products are used in electronic products including mobile phones, computing and networking equipment, appliances, electronic utility meters, battery-powered tools, industrial controls, home automation, or Internet of Things applications such as networked thermostats, power strips, and security devices. Geographically, the company generates maximum revenue from China and Hong Kong.
84GF Score
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