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.
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.
Power IntegrationsSTU:PWI +0.69%84 FCF Margin % is 16.66% as of Mar. 2026, which is 5% below its 10-year median of 17.45. 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 1,022 Semiconductors companies, Power Integrations ranks better than 87.57% on this metric.
The historical data trend for Power Integrations's FCF 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:PWI vs PI, LASR, DIOD: FCF Margin % Comparison
For the Semiconductors subindustry, Power Integrations's FCF Margin %, along with its competitors' market caps and FCF 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.
Power Integrations FCF Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Power Integrations's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Power Integrations's FCF Margin % 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.
Power Integrations (STU:PWI) has a FCF Margin % of 16.66% as of Mar. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Power Integrations and its competitors. This is near median its historical median of 17.45. Over the past decade, Power Integrations' FCF Margin % has ranged from 10.09 to 47.39. According to the industry distribution chart, Power Integrations ranks #127 out of 1022 companies in the Semiconductors industry, placing it in the top 12.4%.
Is Power Integrations' FCF Margin % too high?
Power Integrations' current FCF Margin % of 16.66% is near median its 10-year median of 17.45. Over the past 10 years, this metric has ranged from a low of 10.09 to a high of 47.39. Based on the distribution chart, Power Integrations ranks #127 out of 1022 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. 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' FCF Margin % compare to PI and LASR?
According to the Semiconductors industry distribution chart, Power Integrations ranks #127 out of 1022 companies for FCF Margin %. This places Power Integrations in the top 12% of its industry — outperforming the majority of peers. Historically, Power Integrations' own FCF Margin % has ranged from 10.09 to 47.39 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Semiconductors company?
A good FCF Margin % depends on the Semiconductors industry context. However, FCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Power Integrations and its competitors. Power Integrations's current FCF Margin % is 16.66%, which is near median its own 10-year median of 17.45. 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 FCF Margin % is 16.66%, which is near median its 10-year median of 17.45. 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 FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Power Integrations (STU:PWI), the current FCF Margin % is 16.66% 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:
FCF Margin %: 16.66% (near median its 10-year median of 17.45)
GF Value™: €61.35 vs. price of €52.80 (13.9% below fair value)
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
Get the complete analysis for STU:PWI
FCF 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
STU:PWI has been successfully added to your 
