Will MPWR stock recover?

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Earnings update: MPWRupdated 8:47 p.m. ET, Oct. 29 · refreshed every 15 minutes

MPWR was at $1198.81 in after-hours trading at 4:00 p.m. ET on Oct. 29, 0.0% from the $1198.81 close before the report.

Monolithic Power Systems, Inc. reported fiscal Q3 2026 results on Oct. 29 after the close: revenue $1.20B vs $1.17B expected (+2.9%); earnings per share $8.19 vs $7.91 expected.

Results figures as reported by the company; prices from market data. The company's results filings (8-K) on SEC EDGAR → Not investment advice.

MPWR is down 19.0% from its 3-month high and 28.9% from its 52-week high. Nobody can say if it climbs back. The stock's own history offers useful context.

The list below shows MPWR's past drops of 20% or more, how deep each went and how long the comeback took.

The chart below tracks MPWR's daily closing price from May 5, 2026 to Oct. 29, 2026. Over that stretch it is down 24.3%, from $1,583.47 to $1,198.81. The high reached $1,684.95 on June 3, 2026. The low hit $1,140.12 on Oct. 23, 2026. Each red circle marks a week when company insiders sold shares on the open market. 12 weeks in this period show sales. Bigger circles mean more money. No green diamonds appear. No insider bought on the open market in this window.

MPWR share price and insider trades
Daily closing price, May 5, 2026 to Oct 29, 2026 · dots are open-market trades by company insiders (SEC Form 4), one per week
Latest
$1,198.81
Oct 29, 2026
Change
▼ -24.3%
since May 5, 2026
High
$1,684.95
Jun 3, 2026
Low
$1,140.12
Oct 23, 2026
$1,000$1,200$1,400$1,600Week of May 4, 2026: insiders sold $72.2M on the open market (2 trades)Week of May 11, 2026: insiders sold $18.7M on the open market (1 trade)Week of May 18, 2026: insiders sold $67.2M on the open market (2 trades)Week of May 25, 2026: insiders sold $13.7M on the open market (2 trades)Week of Jun 1, 2026: insiders sold $46K on the open market (1 trade)Week of Jun 29, 2026: insiders sold $41K on the open market (1 trade)Week of Jul 13, 2026: insiders sold $20.2M on the open market (1 trade)Week of Aug 3, 2026: insiders sold $181K on the open market (2 trades)Week of Aug 10, 2026: insiders sold $71K on the open market (1 trade)Week of Aug 17, 2026: insiders sold $8K on the open market (1 trade)Week of Aug 24, 2026: insiders sold $106K on the open market (1 trade)Week of Sep 28, 2026: insiders sold $40.3M on the open market (1 trade)May 5, 2026Oct 29, 2026JulAugSep
Share price Insider sales: $233.0M in 16 trades Insider buys: noneBigger dot = more money. Hover a dot or the line for details.

MPWR's past 20%+ drops and recoveries

The table below shows MPWR's past 20%+ drops and recoveries. Oct. 27, 2025 has the highest drop at -22.5%. Aug. 21, 2024 shows the lowest at -51.6%. Sept. 5, 2023 ranks 3 of 5.

PeakLowDropBack to the peak
2023-09-052023-10-25-24.2%14 trading days (2023-11-14)
2024-03-072024-04-19-22.8%35 trading days (2024-06-10)
2024-08-212025-04-08-51.6%124 trading days (2025-10-06)
2025-10-272025-11-18-22.5%47 trading days (2026-01-28)
2026-06-032026-10-23-32.3%not yet

Also worth knowing about MPWR

Insiders sold $40.7 million over 90 days and bought none on the open market. Sales are often routine, for taxes or pre-planned plans.

Dilution risk: low (0/100). The share count rose 2.6% over a year.

Live MPWR data, updated every 30 minutes: MPWR insider trades, ownership and filings →

In Monolithic Power Systems, Inc.'s own words

“Overall, we see accelerated growth. Our diversified growth strategy is paying off”

— Michael Hsing, CEO and founder of MPS · SEC filing

From the company's earnings release filed with the SEC on 2026-10-29 (Form 8-K).

What would change the picture for MPWR

These are the specific events and levels to watch. None of them is a prediction.

  • The Oct. 29, 2026 earnings report is 0 days away. Monolithic Power Systems, Inc. beat estimates in 3 of the last 4 quarters. The average surprise was +3.4%. A miss would break that pattern.
  • Insider buying: none on the open market in 90 days. A purchase by an executive or director would be the first in at least three months. It would show up on SEC Form 4 within two business days.
  • Analyst ratings: the average score moved from 4.2 to 4.13 over three months. The scale runs from 5 for strong buy to 1 for strong sell. A run of downgrades after earnings usually shows up here first.
  • Price levels: a close above $1684.95 would be a new 52-week high. That level is 40.6% above the latest close of $1198.81. A close below $851.43 would be a new 52-week low. That level is 29.0% below the latest close.
  • Growth: revenue rose 28.7% year over year in the quarter ending Jun 2026. The trend is accelerating. At a P/E of 73.2, a slowdown would matter more than at a lower multiple.
  • New shares: dilution risk is low now. A new shelf registration (S-3) or a prospectus supplement (424B) for an offering would raise it.

MPWR history: what happened after similar moves

Since 2023, MPWR fell 11.0% or more in a month 11 times (separate episodes, not counting the current one). Three months later it was higher in 7 of 10 cases; the median change was +22.9%.

Past moves don't predict the next one; they show how volatile the stock has been.

Month endingMove in that month1 month later3 months later
2025-04-04-15.4%+30.5%+59.8%
2025-11-18-16.9%+8.5%+40.8%
2026-03-10-14.1%+26.6%+45.4%
2026-06-10-11.3%-12.2%-19.4%
2026-07-13-12.2%+8.6%+7.5%
2026-08-31-11.1%+6.4%not yet
The bottom line

MPWR is down 19.0% from its 3-month high and 28.9% from its 52-week high. Nobody knows if or when it will recover. History only shows how past drops played out.

In the last three years, 4 drops of 20% or more fully recovered. The average comeback took about 55 trading days.

Questions people also ask

Do analysts think MPWR is a buy?

19 of the 23 analysts covering Monolithic Power Systems, Inc. rate it a buy or strong buy. The consensus is Buy. Ratings describe analysts' views, not a guarantee, and they change after earnings. More →

When does Monolithic Power Systems, Inc. report earnings next?

The next report is expected on Oct. 29, 2026, 0 days from now. Monolithic Power Systems, Inc. beat the average estimate in 3 of its last 4 reports.

Does MPWR pay a dividend?

Yes: $7.12 per share over the last 12 months, about 0.59% at today's price.

Are MPWR insiders buying or selling?

Insiders sold $40.7 million of MPWR on the open market in 90 days and bought none. Sales are often routine, for taxes, diversification or pre-planned plans. Purchases with their own money are the stronger signal.

Is Monolithic Power Systems, Inc. profitable?

Yes. Monolithic Power Systems, Inc. had $3.3 billion of revenue over the last 12 months. The net margin was 24.5%, and the P/E was 73.2.

Who is the largest shareholder of MPWR?

Among investment managers that file Form 13F, BlackRock Inc. reported the largest MPWR position at $7.7 billion. 1239 institutions reported holding MPWR for Q2 2026.

Dates to watch for MPWR

Insider trades can come any day: they must be filed on Form 4 within two business days.

DateEventWhy it matters
Thu Oct 29, 2026Monolithic Power Systems, Inc. earningsResults and guidance; the biggest scheduled event for the stock.
Mon Nov 16, 202613F filing deadlineFunds disclose what they held on 2026-09-30, including MPWR.
Fri Nov 20, 2026Monthly options expirationOften heavier trading and bigger swings in widely traded stocks.
Wed Dec 9, 2026Federal Reserve rate decisionMarket odds: 25% hold, 1% cut, 74% hike.

Key terms on this page

P/E ratio
Price divided by the last 12 months of earnings per share. A P/E of 20 means investors pay $20 for each $1 of yearly profit. It is only defined when the company is profitable.
Form 4
The SEC form a company's officers, directors and 10% owners must file within two business days of buying or selling its stock.
Open-market trade
A purchase or sale on the exchange at the market price, paid with the insider's own money (code P or S on Form 4), as opposed to option exercises, grants or gifts.
Form 13F
A quarterly SEC report listing the U.S. stock holdings of every investment manager with more than $100 million. It is due 45 days after each quarter ends, so it shows positions with a delay.
Dilution
When a company issues new shares, each existing share owns a smaller piece of the company. Common sources: stock offerings, convertible debt and large stock-based pay.
Form 8-K
The SEC form for material events between quarterly reports: earnings releases, deals, executive changes, stock offerings and similar news.
52-week high / low
The highest and lowest daily closing price over the past year (about 252 trading days).

Where these numbers come from

Every number on this page is computed from the data when the page is refreshed (usually daily); nothing is typed in by hand. This is information, not investment advice.

  • Price: daily closing prices run through Oct. 29, 2026. Changes use 5, 21 and 63 trading days. The 52-week range uses the last 252 closes.
  • Insider trades: SEC Form 4 filings cover the last 90 days. The count includes only open-market purchases (code P) and sales (code S). Option exercises, grants, gifts and filings with data errors are left out.
  • Analyst ratings: counts of current ratings from 23 analysts, compared with three months ago.
  • Earnings dates and estimates: a market-data calendar. It shows reported vs expected EPS for the last 4 quarters.
  • Valuation and growth: revenue, earnings, margins and share counts come from the company's SEC filings. The data is XBRL for the latest quarter, Jun 2026. P/E and price/sales use the latest close.
  • Fund ownership: SEC Form 13F filings for Q2 2026.
  • Dilution: share-count changes and offering-related SEC filings over two years. The filings include shelf registrations, prospectus supplements and convertible notes. The score runs from 0 to 100.
  • History: 21-trading-day moves over about three years of daily closes. Each episode is counted once.
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How this article was made: it was generated from SEC filings and market data with automated tools and is published under Camille Foster's editorial responsibility. Spotted an error? Tell us and we will correct it.

Sources: SEC EDGAR (Form 4, 8-K/6-K, prospectuses, XBRL share counts) and daily closing prices. Insider sales are often routine (taxes, diversification, pre-planned 10b5-1 plans). Not investment advice.

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