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MPWR · NASDAQ

MONOLITHIC POWER SYSTEMS INC

Private beta

Sector unavailable · Industry unavailable

$1,234

+4.08%

Close on Sep 11, 2026

Defensively Qualified

Updated 6/30/2026

Long-term research evidence only. No price targets, no trading signals, no recommendations.

Investment Report Card

MONOLITHIC POWER SYSTEMS INC

Sector unavailable · Data confidence good

63 / 100

Rank #167 of 1,152 qualified companies

Top 25% · Watch

Risk Intelligence

Core Model
B

78 / 100

Fundamentally Qualified

How strong and defensively sound is the company?

Above average on this measure.

Long-Term Potential

Research Model
C+

70 / 100

Ordinary Compounder

Does the business have the characteristics needed to create value over many years?

Around the middle of the covered universe.

Fundamental Momentum

Research Model
D+

51 / 100

Deteriorating

Is the underlying business getting stronger or weaker?

Weaker than most covered companies on this measure.

Ownership Intelligence

Supplemental Intelligence
F

24 / 100

Cautious disclosed activity

What are important owners actually doing?

Weaker than most covered companies on this measure.

Valuation Intelligence

Research Model
F

30 / 100

Expensive

Is today's price reasonable?

Weaker than most covered companies on this measure — and valuation is researched separately from the Suggested Investment Score.

Capital Returns Intelligence

Research Model
D

43 / 100

Moderate Capital Returns

How effectively does the company reward shareholders?

Weaker than most covered companies on this measure — and capital returns are researched separately from the Suggested Investment Score.

Why it stands out

  • Business Quality meets the frozen IA Defensive qualification.

What holds it back

  • The Fundamental Momentum research model shows deterioration.
  • Elevated valuation: the current market price reflects a premium to this company's historical valuation and comparable companies (Valuation Intelligence 30 out of 100, Expensive).

Long-term view

MONOLITHIC POWER SYSTEMS INC scores 70 on Long-Term Potential (C+), described by the research model as ordinary compounder. This describes business characteristics only — it is not a forecast of future returns.

Ownership view

Disclosed ownership evidence reads 24 (F): Cautious disclosed activity. 3 tracked managers disclosed a position in the latest reporting period. Ownership filings are historical disclosures, not signals.

Valuation view

MONOLITHIC POWER SYSTEMS INC reads 30 out of 100 on Valuation Intelligence, recorded as Expensive. The stock currently trades above most of its own recent valuation history and above comparable companies. This describes the price being paid relative to the company's financials — it is not a forecast and not a fair value. Valuation Intelligence is a research model and contributes nothing to the Suggested Investment Score or the daily ranking.

Capital returns view

MONOLITHIC POWER SYSTEMS INC reads 43 out of 100 on Capital Returns Intelligence (Moderate Capital Returns), reflecting a dividend that has grown about 22.8% a year and a share count rising about 0.6% a year. Capital Returns Intelligence is a research model and contributes nothing to the Suggested Investment Score or the daily ranking.

What changed

No meaningful recorded changes in the stored history.

Risk Intelligence is a core model, Long-Term Potential, Fundamental Momentum, Valuation Intelligence and Capital Returns Intelligence are research models, and Ownership Intelligence is supplemental descriptive evidence. Valuation Intelligence and Capital Returns Intelligence each contribute 0% to the Suggested Investment Score. Nothing here is a recommendation.

Compare MPWR with other companies

Research Collections

This company does not currently satisfy any collection rule. That is a stored research result, not a judgement about the business.

Browse collections

About a minute to read

The 60-Second Investment Brief

Written from stored research readings only. No hype. No trading signals. Just better evidence.

Why it's interesting

MONOLITHIC POWER SYSTEMS INC (MPWR) scores 63 out of 100 and ranks #167 of 1,152 qualified companies today. That places it in the top 25% of ranked companies. The stored tier for that score is watch.

Business strength

Risk Intelligence reads 78 out of 100 (B), recorded as fundamentally qualified. Above average on this measure.

Long-term opportunity

Long-Term Potential reads 70 out of 100 (C+), recorded as ordinary compounder. Around the middle of the covered universe.

What's improving or weakening

Fundamental Momentum reads 51 out of 100 (D+), recorded as deteriorating. Weaker than most covered companies on this measure.

What important owners are doing

Ownership Intelligence reads 24 out of 100 (F), recorded as cautious disclosed activity. Weaker than most covered companies on this measure.

What kind of price you'd be paying

Valuation is currently the main point of caution: Valuation Intelligence reads 30 out of 100 (F), recorded as Expensive. MONOLITHIC POWER SYSTEMS INC reads 30 out of 100 on Valuation Intelligence, recorded as Expensive. The stock currently trades above most of its own recent valuation history and above comparable companies. This describes the price being paid relative to the company's financials — it is not a forecast and not a fair value. Valuation Intelligence is a research model and contributes nothing to the Suggested Investment Score or the daily ranking.

How the company rewards shareholders

Capital Returns Intelligence reads 43 out of 100 (D), recorded as Moderate Capital Returns. MONOLITHIC POWER SYSTEMS INC reads 43 out of 100 on Capital Returns Intelligence (Moderate Capital Returns), reflecting a dividend that has grown about 22.8% a year and a share count rising about 0.6% a year. Capital Returns Intelligence is a research model and contributes nothing to the Suggested Investment Score or the daily ranking.

What could go wrong

The Fundamental Momentum research model shows deterioration. Elevated valuation: the current market price reflects a premium to this company's historical valuation and comparable companies (Valuation Intelligence 30 out of 100, Expensive). Data confidence for this company is good.

Bottom line

No individual layer reaches the strongest band today. Fundamental Momentum and Ownership Intelligence remain the main area to watch. Separately from the score, valuation reads expensive at today's price.

Composite discovery model

Pro Investor Score

Pro Investor Score™

63 / 100

Watch

A 0–100 composite discovery score combining Risk Intelligence, Long-Term Potential, Fundamental Momentum, and Ownership Intelligence. It helps rank qualified companies for further research and does not predict future returns.

Rank
#167 of 694
Percentile
Top 25%
Ranking updated
September 12, 2026
83Rank weakened by 83 positions. Rank weakened by 83 positions.
Risk Intelligence
78

30% contribution

Long-Term Potential
70

30% contribution

Fundamental Momentum
51

20% contribution

Ownership Intelligence
24

20% contribution

Ownership Intelligence

24 / 100 · Weak · 20% of the Pro Investor Score

SUPPLEMENTAL / DESCRIPTIVE INTELLIGENCE

Coverage: Good

Elite Investor Activity
0 · Weak

50% of Ownership Intelligence · 10% of the total score

Tracked professional-manager activity is weak.

Institutional Activity
84 · Strong

20% of Ownership Intelligence · 4% of the total score

Broad institutional evidence from resolved filings is strong.

Insider Activity
Insufficient Data

15% of Ownership Intelligence · 3% of the total score

No discretionary insider transactions are stored for this company, so this evidence is unavailable rather than neutral.

Strategic Ownership
Insufficient Data

15% of Ownership Intelligence · 3% of the total score

No qualifying major-holder filings are stored, so this evidence is unavailable rather than neutral.

Ownership Intelligence summarizes publicly disclosed activity among professional investment managers, broader institutions, company insiders, and significant strategic owners. It adds context to investment research but is not a validated predictor of future performance. Ownership information is publicly reported with a delay; the latest applicable reporting period is 2026-06-30, publicly disclosed 9/11/2026. Congressional activity is unavailable pending legal review and contributes nothing to this reading.

Why it ranks here

  • Strong risk profile

    Risk Intelligence ranks in the top 12% of qualified companies, with higher_risk price risk.

  • Exceptional long-term potential

    Stored profitability, capital efficiency and reinvestment readings rank near the top of the qualified universe.

What holds it back

  • Fundamental Momentum is softer

    Reported business trends rank below the qualified median.

  • Ownership evidence is not uniformly supportive

    Disclosed elite investor activity evidence is weak or neutral. Ownership evidence is supplemental and never automatically positive.

  • Ownership evidence disagrees

    Different owner groups point in different directions, so the combined reading is best read as mixed rather than uniformly favourable.

  • Price Risk is less favourable

    Price Risk sits in the higher category relative to other qualified companies.

COMPOSITE DISCOVERY MODEL — RESEARCH STAGE · Data coverage Excellent. Rankings are recalculated daily using the latest available information. Individual components may update at different frequencies based on when new financial and ownership data becomes available.

Researched separately

Valuation Intelligence 30 · Expensive

RESEARCH MODEL

Valuation Intelligence is currently researched separately and does not affect the Suggested Investment Score or daily ranking.

Researched separately

Capital Returns Intelligence 43 · Moderate Capital Returns

RESEARCH MODEL

Capital Returns Intelligence is researched separately and contributes 0% to the Suggested Investment Score, the daily rank or any ranking event.

Score explanation

Why this company scores the way it does

Four research areas carry fixed weights. Each area is compared against every other eligible company, then weighted. The four contributions below add to 63.0 of the stored score (63.0).

  • Risk Intelligence

    30% of the score · contributes 26.5 points

    How strong and defensively sound is the company?

    Stands at the 88 percentile of eligible companies · stored reading 78 · 42% of this company’s total score

    How financially sturdy the company has been when conditions turned against it.

    How this area is measured

    Risk Intelligence reads stored balance-sheet strength, historical downside behaviour and the company's price-risk grouping. A stronger reading describes past resilience; it does not protect against future losses.

    Full methodology
  • Long-Term Potential

    30% of the score · contributes 26.4 points

    Does the business have the characteristics needed to create value over many years?

    Stands at the 88 percentile of eligible companies · stored reading 70 · 42% of this company’s total score

    Whether the business has the durable characteristics long-term owners look for.

    How this area is measured

    Long-Term Potential reads durability characteristics such as profitability consistency, cash generation and reinvestment capability over multiple reported periods.

    Full methodology
  • Fundamental Momentum

    20% of the score · contributes 9.9 points

    Is the underlying business getting stronger or weaker?

    Stands at the 50 percentile of eligible companies · stored reading 51 · 16% of this company’s total score

    Whether the reported business results have been getting stronger or weaker.

    How this area is measured

    Fundamental Momentum compares recent reported fundamentals with the company's own earlier periods, so improvement or deterioration is measured against its history rather than against a forecast.

    Full methodology
  • Ownership Intelligence

    20% of the score · contributes 0.2 points

    What are important owners actually doing?

    Stands at the 1 percentile of eligible companies · stored reading 24 · 0% of this company’s total score

    What large reporting owners have actually been doing with their positions.

    How this area is measured

    Ownership Intelligence reads public ownership filings: how many tracked reporting owners hold the company, and whether they were adding, holding, reducing or exiting in the latest disclosed period.

    Full methodology

What is helping the score

  • Risk Intelligence88 percentile, adding 26.5 points.
  • Long-Term Potential88 percentile, adding 26.4 points.

What deserves attention

  • Ownership Intelligence1 percentile, adding only 0.2 of a possible 20 points.
Outside the score

Additional research — not currently included in the primary Suggested Investment Score.

  • Valuation IntelligenceMONOLITHIC POWER SYSTEMS INC reads 30 out of 100 on Valuation Intelligence, recorded as Expensive. The stock currently trades above most of its own recent valuation history and above comparable companies. This describes the price being paid relative to the company's financials — it is not a forecast and not a fair value.
  • Capital Returns IntelligenceMONOLITHIC POWER SYSTEMS INC reads 43 out of 100 on Capital Returns Intelligence (Moderate Capital Returns), reflecting a dividend that has grown about 22.8% a year and a share count rising about 0.6% a year.

Pro Investor Intelligence™

Reported by insiders, large shareholders and professional funds. Shown beside our research, never blended into it.

Loading professional-investor activity…

Stored snapshots only

What changed

Research-score history available since September 2026.

Stored research history does not yet cover a full 30 days comparison for this company.

A change is reported as meaningful at 8 score points, 5 rank places, or any change of research classification. Nothing here is a recommendation to buy or sell.

Learn the metrics on this page

Plain-English definitions, with the formula and the limitations of each measure.

Fifth research lens · outside the score

Valuation Intelligence

Valuation Intelligence

Is today's price reasonable?

Valuation Intelligence is currently researched separately and does not affect the Suggested Investment Score or daily ranking.

30/ 100

Expensive

RESEARCH MODEL
Excellent coverage

Compared with its history

26

Expensive

Is this company expensive or inexpensive compared with its own history?

Compared with peers

30

Expensive

How expensive is this stock compared with similar companies?

Earnings & cash flow

27

Expensive

How much financial output does an investor receive relative to the price paid?

Growth-adjusted

39

Elevated

Does the company's growth help justify the valuation investors are paying?

MONOLITHIC POWER SYSTEMS INC reads 30 out of 100 on Valuation Intelligence, recorded as Expensive. The stock currently trades above most of its own recent valuation history and above comparable companies. This describes the price being paid relative to the company's financials — it is not a forecast and not a fair value.

Price data through September 11, 2026 · Financial data through the quarter ended June 30, 2026

Valuation history

Stored readings only. The dashed line is this company's own median for the selected measure.

Only one stored valuation reading exists so far, so there is nothing to chart yet. Valuation history builds forward from activation rather than being reconstructed.

Current EV/Sales 18.2x · own median 12.7x · peer median 8.2x

Valuation is inherently uncertain. A stock that appears inexpensive can continue falling, and a stock that appears expensive can continue rising. Valuation Intelligence provides context about the price investors are paying — it does not predict short-term market movements, and it never produces a fair value, a price target or a buy or sell range. Model VALUATION_INTELLIGENCE_V1.

Sixth research lens · outside the score

Capital Returns Intelligence

Capital Returns Intelligence

How effectively does the company reward shareholders?

Capital Returns Intelligence is researched separately and contributes 0% to the Suggested Investment Score, the daily rank or any ranking event.

43/ 100

Moderate Capital Returns

RESEARCH MODEL
Excellent coverage

Dividend Quality

85

Exceptional Capital Returns

Dividend reliability

Buyback Effectiveness

15

Limited Capital Returns

Do buybacks actually reduce shares?

The company spends on share repurchases, but much of that activity offsets share issuance rather than materially reducing the share count.

Dilution Control

30

Limited Capital Returns

Is your ownership share protected?

Capital Return Sustainability

48

Moderate Capital Returns

Can the cash flow support it?

Shareholder Yield

25

Limited Capital Returns

Cash returned versus company value

MONOLITHIC POWER SYSTEMS INC reads 43 out of 100 on Capital Returns Intelligence (Moderate Capital Returns), reflecting a dividend that has grown about 22.8% a year and a share count rising about 0.6% a year.

This company spent cash repurchasing stock, but the share count did not fall meaningfully because it also issued shares. Repurchase spending alone did not increase existing shareholders' ownership.

How returned cash was used

Dividends $329.22M · net repurchases $206.94M · total returned $536.16M · 92% of free cash flow

Price data through September 11, 2026 · Financial data through the quarter ended June 30, 2026

Capital returns history

Stored readings only. History builds forward from activation rather than being reconstructed.

Only one stored reading exists for this measure so far, so there is nothing to chart yet.

Why higher yield isn't always better

A very high dividend yield may reflect a falling share price or an unsustainable payout. Capital Returns Intelligence emphasizes consistency and sustainability rather than simply rewarding the highest yield.

Why buybacks can be misleading

Announced or gross buyback spending does not always mean shareholders are gaining ownership. Companies can simultaneously issue shares through employee compensation or acquisitions. Suggested Investments therefore considers actual share-count changes alongside repurchase spending.

What these terms mean
Dividend Yield
The annual dividend relative to the current share price.
Payout Ratio
The share of company earnings used to pay dividends.
Free Cash Flow Payout
How much of the company's available cash is being used for dividends.
Share Repurchases
When a company buys back its own stock.
Dilution
When the number of shares increases, reducing each existing share's percentage ownership of the company.
Shareholder Yield
A combined view of dividends and net share repurchases relative to the company's market value.

Capital Returns Intelligence describes how a company returns capital to shareholders. It is not a measure of stock-price performance, it does not predict future returns, and a strong reading is never a recommendation to buy. Dividends and repurchases can be reduced or stopped at any time. Model CAPITAL_RETURNS_INTELLIGENCE_V1, contributing 0% to the Pro Investor Score.

Stored daily snapshots only

Ranking history

Stored Suggested Investment ranking history
Today#167Score 63
30 days agoNot rankedNo stored score
90 days agoNot rankedNo stored score
First suggestedSeptember 12, 2026
Highest rank#167

In the company’s own words

What this company does

Monolithic Power Systems, Inc. is a fabless global company that provides high-performance, semiconductor-based power electronics solutions. Incorporated in 1997, our three core strengths include deep system-level knowledge, strong semiconductor design expertise, and innovative proprietary technologies in the areas of semiconductor processes, system integration, and packaging. These combined advantages enable us to deliver reliable, compact, and monolithic solutions found in storage and computing, enterprise data, automotive, industrial, communications and consumer applications. Our mission is to reduce energy and material consumption to improve all aspects of quality of life and create a sustainable future. We believe that we differentiate ourselves by offering solutions that are more highly integrated, smaller in size, more energy-efficient, more accurate and more reliable with respect to performance specifications and, consequently, more cost-effective than many competing solutions. We plan to continue to introduce new products within our existing product families, as well as new, innovative products that expand our market.

We have over 4,500 employees worldwide, with various locations in Asia, Europe and the U.S.

Semiconductors comprise the basic building blocks of electronic systems and equipment. Within the semiconductor industry, components can be classified either as discrete devices, such as individual transistors, or integrated circuits ("ICs"), in which a number of transistors and other elements are combined to form a more complicated electronic circuit. ICs can be further divided into three primary categories: digital, analog, and mixed-signal. Digital ICs, such as memory devices and microprocessors, can store or perform arithmetic functions on data that is represented by a series of ones and zeroes. Analog ICs, in contrast, handle real world signals such as temperature, pressure, light, sound, or speed. In addition, analog ICs also perform power management functions, such as regulating or converting voltages, for electronic devices. Mixed-signal ICs combine digital and analog functions onto a single chip and play an important role in bridging real world applications to digital systems.

We focus on the market for high performance analog and mixed-signal solutions. High performance products generally are differentiated by functionality and performance factors, which include integration of higher levels of functionality into a single chip or module, greater precision, better power efficiency and density, higher speed, and lower heat and noise. There are several key factors that distinguish the analog and mixed-signal IC markets from digital IC markets. These factors include longer product life cycles, numerous market segments, technology that is difficult to replicate, relative complexity of design and process technologies, importance of experienced design engineers, lower capital requirements and diversity of end markets. We have targeted product and market areas that we believe allow us to operate at above-average growth over the long term compared to the semiconductor industry as a whole.

Quoted from the business section of this company’s 10-K filed February 27, 2026. Read the filing

Four distinct intelligence areas

The IA view

Risk Intelligence

Production core

78

Fundamentally Qualified

+10.2 vs Jun 30, 2026

Business Quality qualification score from the locked IA Defensive Research Core. Price Risk stays a separate category and is never blended in.

As of Sep 11, 2026

Long-Term Potential

Research model

70

Elite Compounder

+21.8 vs Jun 30, 2026

Durable business economics and reinvestment characteristics. Independent external validation is pending.

As of Sep 11, 2026

Fundamental Momentum

Research model

51

Middle

+16 vs Jun 30, 2026

Direction and breadth of change in underlying business fundamentals. Not a price-momentum signal.

As of Sep 11, 2026

Elite Investor Activity

Supplemental

0

Bottom range

0 vs Jun 30, 2026

Only 3 tracked managers disclosed a position — treat as limited coverage.

As of Sep 11, 2026

Company intelligence

MPWR score history

Each area is measured and reported separately. No combined score exists.

MPWR intelligence history from 2023-09-30 to 2026-09-11. Risk Intelligence 77.7 on 2026-09-11, up 10.2 from 67.5 on 2026-06-30. Long-Term Potential 70 on 2026-09-11, up 21.8 from 48.2 on 2026-06-30. Fundamental Momentum 50.7 on 2026-09-11, up 16 from 34.7 on 2026-06-30. Elite Investor Activity 0 on 2026-09-11, unchanged 0 from 0 on 2026-06-30. Each area is reported separately and is never combined into a single score.

Risk Intelligence 77.7 as of Sep 11, 2026 (+10.2 vs prior period) · Production core

Long-Term Potential 70 as of Sep 11, 2026 (+21.8 vs prior period) · Research model

Fundamental Momentum 50.7 as of Sep 11, 2026 (+16 vs prior period) · Research model

Elite Investor Activity 0 as of Sep 11, 2026 (0 vs prior period) · Supplemental

Share price

MPWR price history

Closing prices adjusted for splits and dividends. Past prices do not indicate future results.

6M change
+19.8%
1Y change
+47.9%
3Y change
+168.3%
5Y change
+156.6%
Max change
+619.3%

Last stored close $1234.46 · +47.9% over the selected range · 52 sessions shown

Balanced evidence

Why IA likes it

  • Business Quality meets the frozen IA Defensive qualification.

Risk and uncertainty

What IA doesn’t like

  • The Fundamental Momentum research model shows deterioration.

What would change our view

  • Business Quality falling below the frozen qualification threshold.
  • Price Risk moving to a less favorable category.
  • A sustained reversal in the Fundamental Momentum research evidence.
  • New material public ownership disclosures.

Public filings · descriptive only

Elite Investor Activity

Reporting holders

3

New holders

1

Increasing

0

Reducing

2

Exiting

0

Coverage

Excellent

Cautious disclosed activity · Report period 2021-06-30 · Public 12/20/2023

ManagerChangePortfolio weightRankDisclosed

Insufficient high-confidence manager coverage.

Objective stored changes

What changed

  • Risk Intelligence

    Price Risk category changed

    Price Risk moved from Not Available to Higher risk.

  • Long-Term Potential

    IA Compounder strengthened

    IA Compounder research score moved from 48.2 to 61.4.

  • Fundamental Momentum

    Fundamental Momentum improved

    Fundamental Momentum research score moved from 34.7 to 48.7.

  • Risk Intelligence

    IA Defensive improved

    Business Quality qualification score moved from 65.1 to 67.5.

  • Long-Term Potential

    IA Compounder softened

    IA Compounder research score moved from 61.4 to 48.2.

  • Fundamental Momentum

    Fundamental Momentum softened

    Fundamental Momentum research score moved from 69.6 to 34.7.

  • Elite Investor Activity

    Elite Investor Consensus weakened

    Disclosed agreement among tracked managers moved from 33 to 0 for the reporting period ending 2026-06-30.

  • Elite Investor Activity

    Elite Investor Consensus strengthened

    Disclosed agreement among tracked managers moved from 25 to 33 for the reporting period ending 2026-03-31.

  • Elite Investor Activity

    Elite Investor Consensus weakened

    Disclosed agreement among tracked managers moved from 100 to 25 for the reporting period ending 2025-12-31.

  • Elite Investor Activity

    Elite Investor Consensus weakened

    Disclosed agreement among tracked managers moved from 75 to 33 for the reporting period ending 2024-12-31.

Ownership timeline

No high-confidence public ownership events are available.

General research only. Not personalized advice. Public filings may be delayed, amended, incomplete, or reflect positions that have changed since the reporting date.