Direct Answer
Monolithic Power Systems reports revenue across 8 geographic regions in its fiscal 2025 Form 10-K. China is the largest, with $1.5 billion of revenue (55% of the total), followed by Taiwan at $550 million (20%). 3% of revenue came from the United States.
How Does Monolithic Power Systems Make Money?
No single region supplies a majority of revenue: the largest, China, is 55%, which spreads Monolithic Power Systems's exposure across several demand drivers. Between fiscal 2024 and 2025, South East Asia grew fastest (+88.1%) and Taiwan slowest (-4.8%), so the revenue mix tilts toward South East Asia while that gap lasts.
| Region | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| China | $1.5 billion | $1.2 billion | 55.3% | 31.1% |
| Taiwan | $550 million | $578 million | 19.7% | -4.8% |
| South Korea | $253 million | $168 million | 9.1% | 50.5% |
| South East Asia | $148 million | $79 million | 5.3% | 88.1% |
| Europe | $114 million | $87 million | 4.1% | 30.6% |
| United States | $97 million | $55 million | 3.5% | 75.1% |
| Japan | $84 million | $62 million | 3.0% | 36.9% |
| Other Region | $484,000 | $310,000 | 0.0% | 56.1% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Monolithic Power Systems's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.
Where These Numbers Come From
Every figure on this page is a value Monolithic Power Systems reported in the segment note and revenue disclosures of its Form 10-K filed February 27, 2026 (accession 0001437749-26-006113), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.
Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.
Frequently Asked Questions
What are Monolithic Power Systems's main regions?
In its fiscal 2025 Form 10-K, Monolithic Power Systems reports revenue for China, Taiwan, South Korea, South East Asia, Europe, United States, Japan and Other Region.
Which part of Monolithic Power Systems brings in the most revenue?
China, with $1.5 billion of revenue in fiscal 2025, or 55% of the total.
How much of Monolithic Power Systems's revenue comes from outside the United States?
97% in fiscal 2025, by the geographic breakdown Monolithic Power Systems reports in its Form 10-K. Companies assign revenue to regions differently (customer location, shipping address or selling entity), so check the filing's definition before comparing companies.