Monolithic Power Systems (MPWR)
What the price implies
A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.
At a market value of $64.4B, Monolithic Power Systems's free cash flow of $666M (fiscal 2025) would need to grow about 26% a year for the stock to be worth today's price. That is close to what the company has delivered over the last 9 years.
Assumes a 9% discount rate and 3% growth after year 10, on free cash flow (operating cash flow minus capital spending) from Monolithic Power Systems's SEC filings. Change any assumption, or model revenue and margins instead, in the Modeling tab, or try your own numbers in the reverse DCF calculator.
Fundamental grade
Five factors scored 1 to 9 from MPWR's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from Monolithic Power Systems's 10-K filings. The deep dive has 15+ years, quarters and every line.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $1.2B | $1.8B | $1.8B | $2.2B | $2.8B |
| Net income | $242M | $438M | $427M | $1.6B | $621M |
| Free cash flow | $226M | $188M | $581M | $642M | $666M |
| EPS (diluted) | $5.05 | $9.05 | $8.76 | $32.60 | $12.86 |
| Operating margin | 21.7% | 29.4% | 26.5% | 24.4% | 26.1% |
Where the revenue comes from
Revenue by products, fiscal 2023.
Superinvestors who own MPWR
From each investor's latest 13F filing (what a 13F shows). 5 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Ron Baron Baron Capital (BAMCO) |
Trimmed | $81M | 0.12% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Trimmed | $34M | 0.01% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | $33M | 0.08% | Q2 2026 |
| Hersh Cohen ClearBridge Investments |
Trimmed | $17M | 0.01% | Q2 2026 |
| Lee Ainslie Maverick Capital |
New position | $819,739 | 0.01% | Q2 2026 |
Insider buying
Open-market purchases by Monolithic Power Systems's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you.
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Feb 5, 2026 | Ro Khanna |
0 | $1,155.99 | — |
| Feb 5, 2026 | Ro Khanna |
0 | $1,155.99 | — |
| Feb 4, 2026 | Markwayne Mullin |
0 | $1,136.83 | — |
| Feb 4, 2026 | Markwayne Mullin |
0 | $1,136.83 | — |
| Jan 5, 2026 | Markwayne Mullin |
0 | $955.03 | — |
| Jan 5, 2026 | Markwayne Mullin |
0 | $955.03 | — |
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In the full deep dive
Questions
What growth does Monolithic Power Systems's stock price imply?
At a market value of $64.4B, Monolithic Power Systems would need its free cash flow to grow about 26% a year for 10 years (discounted at 9%, 3% growth after that) to be worth today's price. Over the last 9 years its free cash flow grew 28% a year.
Are Monolithic Power Systems insiders buying the stock?
6 open-market insider purchases of MPWR in the last 12 months, from SEC Form 4 filings.
Which superinvestors own Monolithic Power Systems?
5 of the superinvestors Investingly tracks hold MPWR in their latest 13F, including Ron Baron, Cliff Asness, Joel Greenblatt.
Prices and ratios as of Oct 7, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.