MPWR
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.MPWR

Technology · Semiconductors
1190.44USD
+5.22%
Nov 08, 2026
MPWR overview ready
Power Management Semiconductors for AI Server Compute Systems
MPWR is a fabless power-management semiconductor supplier whose enterprise-data products address power delivery inside AI servers and associated compute, memory and storage systems.
Primary theme is lagging
Power Semiconductors is lagging (-17.6pp vs SPY over 21 sessions; 0 of 7 members ahead of SPY).
Price trend is broken
Longer-term context reads trend under pressure, with a near-term setup of failed reclaim.
The tactical setup reads failed reclaim, but the weekly structure is broken.
Demanding valuation
The price embeds expectations that run ahead of the cash the business currently produces.
Unremarkable fundamentals
Primary risk
Semiconductor industry cyclicality.
Market Nov 6Filing Sep 30Price action Nov 7Research Oct 6

Conviction Level

PriceAction3.4BusinessPerformance7.0BusinessQuality8.4Valuation1.8ThemeMomentum1.0Improving — Revenue growth has accelerated across 4 consecutive quarters, rising from +21% to +63% year over year. Diluted EPS is up 47% year over year ($5.51), but growth has slowed from +86%. — From filed financial statements. Describes the recent trajectory of the business, not the stock. 20 of the 100 Conviction points.

Conviction uses Price Action, Business Performance, Business Quality, Valuation. Theme Momentum is research context, not an input.

Theme momentumPrimary theme · group context, not entry timing
vs SPY
−17.6pp
Theme return
−22.6%
Beating SPY
0 of 7
21 sessions to Nov 6, 2026 · Theme Leadership V2
Price
Loading price history…

Price Action

Price trend is broken
Longer-term context reads trend under pressure, with a near-term setup of failed reclaim.
The tactical setup reads failed reclaim, but the weekly structure is broken.
EntryWeak / unconfirmed recovery

The daily chart may be improving, but the weekly fast averages have not been reclaimed — the recovery is not yet confirmed on the higher timeframe.

Key Financials

Market Cap
$58.1B
Avg Volume (60D)
876.8K
60 sessions
Revenue Growth YoY
+26.4%
FY2025 vs FY2024
Gross Margin
+55.3%
Trailing twelve months
Operating Margin
+29.5%
Trailing twelve months
Free Cash Flow Yield
+1.0%
Distance from 200DMA
-9.6%
P/E
65.0x
Market metrics as of Nov 6, 2026
Financial results for the period ended Sep 30, 2026
Filed balance-sheet data as of Sep 30, 2026

Business Performance

Improving

Revenue growth has accelerated across 4 consecutive quarters, rising from +21% to +63% year over year. Diluted EPS is up 47% year over year ($5.51), but growth has slowed from +86%.

Latest reported: Q3 FY2026, ended Sep 30
Revenue growthAccelerating
+63%
$1.20B in Q3 FY2026 · YoY
YoY growth, last 4 quarters
  1. +21%
  2. +26%
  3. +48%
  4. +63%
Earnings growthSlowing
+47%
Diluted EPS $5.51 vs $3.74 a year earlier · GAAP
Diluted EPS YoY (GAAP), last 4 quarters
  1. n/a
  2. +40%
  3. +86%
  4. +47%
Operating marginExpanding
29.8%
+3.3 pp YoY · gross margin 55.4% (+0.2 pp)

Business Quality

8.4 / 10

How well the business earns on its assets, converts earnings to cash and funds itself — read from its SEC filings.

Fundamentals & Valuation

Both valuation perspectives agree this company is expensive.
Monolithic Power Systems, Inc. has an Expensive valuation stance because the price embeds expectations that run ahead of the cash the business currently produces. It trades at a 1.0% free-cash-flow yield, which requires sustained delivery to be justified.

Company Research

Thesis
MPWR is a fabless power-management semiconductor supplier whose enterprise-data products address power delivery inside AI servers and associated compute, memory and storage systems. Its AI/server exposure is at the board, module and subsystem power layer rather than the facility electrical-distribution or liquid-cooling layer.
Opportunity
Moderate opportunity
AI-server and rack-scale compute deployments require increasingly dense, efficient power-conversion, regulation, sequencing and monitoring semiconductors as accelerator power draw and rack power density rise.
Key risk
Semiconductor industry cyclicality.

Economic classification

Loading the economic classification…

Business & Markets

Technology · Semiconductors
What they do

Monolithic Power Systems designs and sells semiconductor-based power electronics solutions, operating as a fabless company serving global markets including Asia, Europe, and the Americas.

How it earns

The company generates revenue primarily through transactional sales of semiconductor products to original equipment manufacturers and system integrators.

Products & services
DC to DC power conversion solutions
AC to DC power conversion solutions
Customers & end markets
AI server and enterprise data center operators
Consumer electronics manufacturers
Network infrastructure providers
Market position

Leader in power management semiconductors for AI and enterprise data infrastructure applications.

Demand drivers
Medium cyclicality

Demand is influenced by semiconductor industry cycles and capital spending in data centers and electronics manufacturing.

Peers

Companies validated as economically comparable to MPWR — similar business, revenue model and scale.
PRICE ACTIONVALUATIONTHEME
Texas Instruments IncorporatedEstablished Trend — Constructive PullbackExpensive6.5MediumUnavailableNot in RS poolLocked$277.36−0.28%
Analog Devices, Inc.Established Trend — Distribution PressureExpensive6.0MediumUnavailableNot in RS poolLocked$363.56+0.71%
ON Semiconductor CorporationEarly Recovery — Failed ReclaimFair6.5MediumUnavailableNot in RS poolLocked$63.31+0.48%
STMicroelectronics N.V.Trend Under Pressure — Failed ReclaimCheap8.0HighUnavailableNot in RS poolLocked$41.72+4.43%
Microchip Technology IncorporatedEarly Recovery — Failed ReclaimFair8.0HighUnavailableNot in RS poolLocked$58.35−10.02%
NXP Semiconductors N.V.Established Trend — Daily ReclaimFair8.0HighUnavailableNot in RS poolLocked$248.29+1.58%