← Back to All US Stocks

Monolithic Power Systems Inc. (MPWR) Stock Fundamental Analysis & AI Rating 2026

MPWR Nasdaq Semiconductors & Related Devices DE CIK: 0001280452
Updated This Month • Analysis: May 6, 2026 • SEC Data: 2026-03-31
Combined AI Rating
BUY
72% Confidence
STRONG AGREEMENT
BUY
72% Conf
BUY
72% Conf

📊 MPWR Key Takeaways

Revenue: $804.2M
Net Margin: 24.0%
Free Cash Flow: $179.4M
Current Ratio: 4.79x
Debt/Equity: 0.00x
EPS: $3.92
AI Rating: BUY with 72% confidence
Monolithic Power Systems Inc. (MPWR) receives a BUY rating with 72% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $804.2M, net profit margin of 24.0%, and return on equity (ROE) of 5.3%, Monolithic Power Systems Inc. demonstrates strong fundamentals in the Technology sector. Below is our complete MPWR stock analysis for 2026.

Is Monolithic Power Systems Inc. (MPWR) a Good Investment?

Claude

MPWR exhibits exceptional operational fundamentals with 26.4% revenue growth, outstanding margins (55.3% gross, 30.0% operating, 24.0% net), and fortress balance sheet with zero debt and $1.1B cash. However, the 60.6% EPS decline despite strong revenue growth signals potential capital structure changes or one-time charges requiring clarification; returns metrics (5.3% ROE, 4.3% ROA) remain subdued relative to margin quality.

ChatGPT

MPWR delivers strong fundamentals with 26% revenue growth, premium margins, and robust free cash flow supported by a debt-free, highly liquid balance sheet. Despite a sharp YoY decline in reported net income/EPS, operating profitability and cash generation remain solid, indicating resilient core demand and execution. Balance sheet strength provides flexibility to invest and weather cyclicality.

Why Buy Monolithic Power Systems Inc. Stock? MPWR Key Strengths

Claude
  • + Exceptional profitability margins across all levels (gross 55.3%, operating 30.0%, net 24.0%) demonstrating pricing power and operational efficiency
  • + Strong revenue growth of 26.4% YoY with robust free cash flow generation ($179.4M FCF, 22.3% FCF margin)
  • + Pristine balance sheet with zero long-term debt, $1.1B cash, and 4.79x current ratio providing strategic flexibility
  • + Operating cash flow of $250.3M substantially supports growth and capital allocation
  • + High insider activity (27 Form 4 filings in 90 days) may indicate management confidence in fundamentals
ChatGPT
  • + Premium gross and operating margins indicating pricing power and efficiency
  • + Strong free cash flow (23.9% margin) with $1.1B cash and no debt
  • + Healthy returns on capital (ROE 17.6%, ROA 14.8%) alongside double-digit growth

MPWR Stock Risks: Monolithic Power Systems Inc. Investment Risks

Claude
  • ! Severe diluted EPS decline of 60.6% YoY despite 26.4% revenue growth suggests significant share dilution, one-time charges, or tax headwinds requiring explanation
  • ! Return on equity (5.3%) and return on assets (4.3%) are materially low relative to the quality of profitability margins, indicating capital inefficiency
  • ! Semiconductor sector exposure to cyclical demand, pricing pressure, and intense competition may pressure future margins
  • ! Low return metrics suggest shareholder value creation may be hindered despite strong cash generation
ChatGPT
  • ! Large YoY decline in net income/EPS raises earnings volatility concerns
  • ! Exposure to semiconductor cycle and potential inventory/demand normalization
  • ! Competitive and mix-driven margin pressure requiring continued high R&D investment

Key Metrics to Watch

Claude
  • * EPS trajectory and detailed explanation of YoY decline drivers and share count changes
  • * Return on equity improvement and capital allocation decisions going forward
  • * Gross and operating margin sustainability under potential cyclical headwinds
  • * Operating cash flow stability relative to capex spend and working capital management
ChatGPT
  • * Gross margin trend
  • * Free cash flow margin

Monolithic Power Systems Inc. (MPWR) Financial Metrics & Key Ratios

Revenue
$804.2M
Net Income
$193.2M
EPS (Diluted)
$3.92
Free Cash Flow
$179.4M
Total Assets
$4.4B
Cash Position
$1.1B

💡 AI Analyst Insight

The 22.3% free cash flow margin provides substantial flexibility for dividends, buybacks, and strategic investments. Strong liquidity with a 4.79x current ratio provides a solid financial cushion.

MPWR Profit Margin, ROE & Profitability Analysis

Gross Margin 55.3%
Operating Margin 30.0%
Net Margin 24.0%
ROE 5.3%
ROA 4.3%
FCF Margin 22.3%

MPWR vs Technology Sector: How Monolithic Power Systems Inc. Compares

How Monolithic Power Systems Inc. compares to Technology sector averages

Net Margin
MPWR 24.0%
vs
Sector Avg 18.0%
MPWR Sector
ROE
MPWR 5.3%
vs
Sector Avg 22.0%
MPWR Sector
Current Ratio
MPWR 4.8x
vs
Sector Avg 2.5x
MPWR Sector
Debt/Equity
MPWR 0.0x
vs
Sector Avg 0.5x
MPWR Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Monolithic Power Systems Inc. Stock Overvalued? MPWR Valuation Analysis 2026

Based on fundamental analysis, Monolithic Power Systems Inc. has mixed fundamental signals relative to the Technology sector in 2026.

Return on Equity
5.3%
Sector avg: 22%
Net Profit Margin
24.0%
Sector avg: 18%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.00x
Sector avg: 0.5x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Monolithic Power Systems Inc. Balance Sheet: MPWR Debt, Cash & Liquidity

Current Ratio
4.79x
Quick Ratio
3.52x
Debt/Equity
0.00x
Debt/Assets
17.3%
Interest Coverage
N/A
Long-term Debt
N/A

MPWR Revenue & Earnings Growth: 5-Year Financial Trend

MPWR 5-year financial data: Year 2021: Revenue $1.2B, Net Income $108.8M, EPS $2.38. Year 2022: Revenue $1.8B, Net Income $164.4M, EPS $3.50. Year 2023: Revenue $1.8B, Net Income $242.0M, EPS $5.05. Year 2024: Revenue $2.2B, Net Income $437.7M, EPS $9.05. Year 2025: Revenue $2.8B, Net Income $427.4M, EPS $8.76.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Monolithic Power Systems Inc.'s revenue has grown significantly by 131% over the 5-year period, indicating strong business expansion. The most recent EPS of $8.76 reflects profitable operations.

MPWR Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
22.3%
Free cash flow / Revenue

MPWR Quarterly Earnings & Performance

Quarterly financial performance data for Monolithic Power Systems Inc. including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q1 2026 $637.6M $135.1M $2.81
Q3 2025 $620.1M $144.4M $2.95
Q2 2025 $507.4M $100.4M $2.05
Q1 2025 $457.9M $92.5M $1.89
Q3 2024 $474.9M $121.2M $2.48
Q2 2024 $441.1M $99.5M $2.04
Q1 2024 $451.1M $92.5M $1.89
Q3 2023 $474.9M $121.2M $2.48

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

Monolithic Power Systems Inc. Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$250.3M
Cash generated from operations
Stock Buybacks
$6.6M
Shares repurchased (TTM)
Capital Expenditures
$70.8M
Investment in assets
Dividends Paid
$78.4M
Returned to shareholders

MPWR SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Monolithic Power Systems Inc. (CIK: 0001280452)

📋 Recent SEC Filings

Date Form Document Action
May 15, 2026 4 xslF345X06/marketforms-73173.xml View →
May 15, 2026 4 xslF345X06/marketforms-73154.xml View →
May 8, 2026 4 xslF345X06/marketforms-73082.xml View →
May 8, 2026 4 xslF345X06/marketforms-73083.xml View →
May 8, 2026 4 xslF345X06/marketforms-73073.xml View →

Frequently Asked Questions about MPWR

What is the AI rating for MPWR?

Monolithic Power Systems Inc. (MPWR) has a Combined AI Rating of BUY from Claude (BUY) and ChatGPT (BUY) with 72% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are MPWR's key strengths?

Claude: Exceptional profitability margins across all levels (gross 55.3%, operating 30.0%, net 24.0%) demonstrating pricing power and operational efficiency. Strong revenue growth of 26.4% YoY with robust free cash flow generation ($179.4M FCF, 22.3% FCF margin). ChatGPT: Premium gross and operating margins indicating pricing power and efficiency. Strong free cash flow (23.9% margin) with $1.1B cash and no debt.

What are the risks of investing in MPWR?

Claude: Severe diluted EPS decline of 60.6% YoY despite 26.4% revenue growth suggests significant share dilution, one-time charges, or tax headwinds requiring explanation. Return on equity (5.3%) and return on assets (4.3%) are materially low relative to the quality of profitability margins, indicating capital inefficiency. ChatGPT: Large YoY decline in net income/EPS raises earnings volatility concerns. Exposure to semiconductor cycle and potential inventory/demand normalization.

What is MPWR's revenue and growth?

Monolithic Power Systems Inc. reported revenue of $804.2M.

Does MPWR pay dividends?

Monolithic Power Systems Inc. pays dividends, with $78.4M distributed to shareholders in the trailing twelve months.

Where can I find MPWR SEC filings?

Official SEC filings for Monolithic Power Systems Inc. (CIK: 0001280452) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is MPWR's EPS?

Monolithic Power Systems Inc. has a diluted EPS of $3.92.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is MPWR a good stock to buy right now?

Based on our AI fundamental analysis in May 2026, Monolithic Power Systems Inc. has a BUY rating with 72% confidence. The AI analysis suggests favorable fundamentals based on SEC filings. This is not investment advice.

Is MPWR stock overvalued or undervalued?

Valuation metrics for MPWR: ROE of 5.3% (sector avg: 22%), net margin of 24.0% (sector avg: 18%). Compare these metrics with sector averages to assess valuation.

Should I buy MPWR stock in 2026?

Our dual AI analysis gives Monolithic Power Systems Inc. a combined BUY rating for 2026. Revenue is data pending, with profitability above sector average. Always conduct your own research.

What is MPWR's free cash flow?

Monolithic Power Systems Inc.'s operating cash flow is $250.3M, with capital expenditures of $70.8M. FCF margin is 22.3%.

How does MPWR compare to other Technology stocks?

Vs Technology sector averages: Net margin 24.0% (avg: 18%), ROE 5.3% (avg: 22%), current ratio 4.79 (avg: 2.5).

Top Rated Stocks
AAPL 92% MSFT 92% FAST 92% DT 92% DECK 92% DAVEW 92% ANET 88% RDDT 88% KNSL 88% MGRE 88%
Sector: All Technology Stocks →
Browse: Buy Stocks
Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: May 6, 2026 | Data as of: 2026-03-31 | Powered by Claude AI