MONOLITHIC POWER SYSTEMS INC
At today's price, MONOLITHIC POWER SYSTEMS INC (MPWR) is priced for today's economics sustained for ~26.6 years. boothcheck doesn't publish a fair value or a price target; it shows what the price assumes, so you can judge whether that bar is too high. Built from SEC EDGAR filings.
At $1,563.49 (as of June 27, 2026) the market pays roughly 98x company-wide operating income, a multiple at the very top of the semiconductor peer distribution. The price implies operating growth held near its self-funding ceiling for close to three decades, a demanding bet on continued execution. The engine is AI server power. Enterprise Data revenue grew about 98% year over year in Q1 2026 and is now nearly a third of the business, with Q2 guidance roughly 11% above prior Street consensus. Th
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1,080 institutional managers reported holding MPWR in 13F filings for the quarter ended 2026-03-31. Together they hold about 93% of the company; the top 10 hold 52%. 154 opened new positions that quarter. Held by Vanguard Group, BlackRock, FMR (Fidelity), among others. On the short side, 2.3M shares were sold short as of the 2026-06-15 count, about 5% of shares outstanding (3 days of typical volume to cover).
Quarterly 13F filings arrive up to 45 days after quarter end, so the picture is never current (filed through 2026-05-29). Nothing here is investment advice.
MPWR's share count grew 7.2% over the past five years even with $646.59M spent on repurchases. It pays a dividend, and has for 8 years running, raised 7 years straight; the current rate is $6.24 a share annually. Cash returned over the past three years: $703.80M in dividends and $646.59M in repurchases.
Share counts are split-adjusted; repurchase totals are gross of share issuance. Nothing here is investment advice.
No open-market insider buys on file at MPWR over the trailing three years. Absence is a fact about the company, not a signal. 13 officers and directors are on file.
Code P open-market purchases from SEC Form 4 filings, non-derivative, excluding scheduled 10b5-1 plans. Nothing here is investment advice.
MPWR's recent reports: the day-one move, then what the following quarter actually did.
| report | day one | next quarter |
|---|---|---|
| 2023-08-05 | +0.9% | -11.8% |
| 2023-11-09 | +8.8% | +22.1% |
| 2024-03-01 | +16.4% | -4.9% |
| 2024-05-04 | +6.5% | +19.0% |
Day-one is the close-to-close move around the filing. Nothing here is investment advice.
MPWR's latest 8-K filings: 2026-06-12 (items 5.07, 8.01, 9.01); 2026-04-30 (items 2.02, 9.01); 2026-02-27 (items 4.02); 2026-02-05 (items 2.02, 5.02, 8.01, 9.01); 2025-12-12 (items 8.01, 9.01).
Item codes are the SEC's own classification of what each report discloses. Nothing here is investment advice.
Last analyzed: July 3, 2026
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For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.