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Companies / Information Technology / Monolithic Power Systems
MPWR

Monolithic Power Systems

Information TechnologySemiconductorsS&P 500
Ticker MPWRWEST PALM BEACH, FLFiscal year ends DecemberBook value per share $79.09Diluted shares 49.3M

Monolithic Power Systems, Inc. (NASDAQ: MPWR) is a fabless semiconductor company that designs and develops high-performance analog and mixed-signal power electronics solutions. The company's website is www.monolithicpower.com. From the company’s description.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$2.79BFY2025
+26.4% year over year
Last 12 mo $3.27B
26.11%FY2025
+1.7 percentage points
Last 12 mo 28.72%
$621.48MFY2025
−65.2% year over year
Last 12 mo $804.49M
17.60%FY2025
−39.2 percentage points
Last 12 mo 20.65%
Cash & financing
$838.20MFY2025
+6.3% year over year
Last 12 mo $822.34M
$666.19MFY2025
+3.7% year over year
Last 12 mo $585.54M
—
48.3MFY2025
−1.1% year over year
Last 12 mo 49.3M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Monolithic Power Systems does

In the company’s own words

Monolithic Power Systems, Inc. (NASDAQ: MPWR) is a fabless semiconductor company that designs and develops high-performance analog and mixed-signal power electronics solutions. The company's website is www.monolithicpower.com.

Founded in 1997, MPS specializes in creating smaller, single-chip power management solutions through proprietary process and packaging technologies. The company's core product families include direct current to direct current converters, alternating current to direct current converters, driver metal-oxide-semiconductor field-effect transistors, power management integrated circuits, current limit switches, and lighting control products. These solutions are characterized by high integration levels, strong accuracy, power efficiency, and reliability, enabling customers to reduce component counts, minimize form factors, and lower system costs while decreasing carbon emissions.

MPS serves six primary end markets. Storage and computing represented 26.3 percent of revenue in 2025, followed closely by enterprise data at 25.2 percent. Automotive applications accounted for 21.2 percent, communications for 11.1 percent, consumer for 9.1 percent, and industrial for 7.1 percent. The company's products are used in memory systems, storage solutions, cloud-based servers, artificial intelligence systems, advanced driver assistance systems, network infrastructure, and various consumer electronics.

The company operates a fabless manufacturing model, collaborating with third-party foundries and assembly partners located across China, Taiwan, South Korea, Singapore, and Malaysia. This approach allows MPS to focus on design and engineering while maintaining control over proprietary process technologies. The company maintains a diversified supply chain across multiple countries to mitigate operational risks and enhance continuity.

As of December 31, 2025, MPS employed 4,501 people across multiple locations in Asia, Europe, and the United States. The company distributes its products primarily through third-party distributors and value-added resellers. In 2025, three distributors accounted for 26 percent, 18 percent, and 10 percent of total revenue respectively. Approximately 92 percent of the company's revenue comes from customers in Asia, reflecting the geographic concentration of its customer base and operations.

Company details
Sector
Information Technology
Industry (SIC)
Semiconductors
Headquarters
WEST PALM BEACH, FL
Fiscal year end
December
CIK
1280452
SIC
3674

Financial performance, year by year

Fiscal 2013–2025 · USD
$-327.32M$654.63M$1.64B$2.62B$3.60B2013201420152016201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Monolithic Power Systems — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

1.0K
funds hold it
0 of 35
superinvestors hold it
$36.03B
held by funds, at market
49.8%
of shares held by funds

Largest fund holders · Monolithic Power Systems’s weight in each

Select Semiconductors Portfolio
FSELX · Fidelity Select Portfolios
5.19%of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.09%of fund net assets
VANGUARD 500 INDEX FUND
VOO · VANGUARD INDEX FUNDS
0.11%of fund net assets
0.29%of fund net assets
iShares Semiconductor ETF
SOXX · iShares Trust
2.93%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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