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Monolithic Power Systems, Inc. (MPWR) stock analysis

MPWRNasdaqSemiconductors & Related DevicesFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Nov 3, 2026Score 18/30113% above fair value
$1478.69+121.09 (+8.92%)

Close on Nov 11, 2026Market cap $72.67BP/E 90.3Yield 0.42%

StockData Score

Prices as of Nov 11, 2026How the score works

Value0Growth3Performance5Health6Dividend4

Solid18 of 30 checks passed

Monolithic Power Systems passes 18 of the 30 checks behind our score. Each dot in the shape is one check — hover it for the numbers.

Valuation
0/6
Growth
3/6
Past performance
5/6
Financial health
6/6
Dividend
4/6

What stands out

  • Return on equity over 15%

    Return on equity was 22.6% over the last twelve months and averaged 31.6% over five years.

  • Return on capital over 10%

    Return on invested capital was 33.7%, above the 10% that usually covers the cost of capital.

  • No debt

    Monolithic Power Systems has no borrowings on its latest balance sheet.

  • Earnings grew over 5 years

    Net income grew 30.5% a year on average over the last five fiscal years.

What to watch

  • Margin of safety under 20%

    The price is 113% above fair value, so there is no margin of safety.

  • Trading above fair value

    The share price of $1478.69 is above our fair value estimate of $694.41.

  • Earnings growth not accelerating

    Net income grew -52.0% over the last twelve months, against a 5-year average of 30.5% a year.

  • P/E above its 5-year median

    Monolithic Power Systems's P/E of 90.3 is above its own 5-year median of 67.2.

Valuation0/6
  • P/E above its 5-year median

    Monolithic Power Systems's P/E of 90.3 is above its own 5-year median of 67.2.

  • P/E above the industry

    Monolithic Power Systems's P/E of 90.3 is above the Electronic Components and Accessories median of 34.6.

  • EV/EBITDA above its 5-year median

    Monolithic Power Systems's EV/EBITDA of 71.2 is above its 5-year median of 57.6.

  • P/B above the industry

    Monolithic Power Systems's price-to-book of 18.65 is above the Electronic Components and Accessories median of 3.49.

  • Trading above fair value

    The share price of $1478.69 is above our fair value estimate of $694.41.

  • Margin of safety under 20%

    The price is 113% above fair value, so there is no margin of safety.

Growth3/6
  • Revenue growing 10%+ a year

    Revenue grew 15.9% a year over the last three fiscal years.

  • EPS growing 10%+ a year

    Diluted EPS grew 12.4% a year over the last three fiscal years.

  • Earnings growth not accelerating

    Net income grew -52.0% over the last twelve months, against a 5-year average of 30.5% a year.

  • Growing faster than the industry

    Revenue grew 28.7% over the last twelve months; the Electronic Components and Accessories median is 17.3%.

  • Guidance lowered

    Monolithic Power Systems lowered its fourth quarter of 2026 Interest and other income outlook on Oct 29, 2026.

  • Gross margin slipping

    Gross margin was 55.2% over the last twelve months, against 55.3% a year earlier.

Past performance5/6
  • Return on equity over 15%

    Return on equity was 22.6% over the last twelve months and averaged 31.6% over five years.

  • Return on capital over 10%

    Return on invested capital was 33.7%, above the 10% that usually covers the cost of capital.

  • Return on equity above the industry

    Monolithic Power Systems's return on equity of 22.6% is above the Electronic Components and Accessories median of 4.8%.

  • Earnings grew over 5 years

    Net income grew 30.5% a year on average over the last five fiscal years.

  • Net margin below its 5-year average

    Net margin was 24.5% over the last twelve months, against a 5-year average of 32.5%.

  • Net margin above the industry

    Monolithic Power Systems's net margin of 24.5% is above the Electronic Components and Accessories median of 3.0%.

Financial health6/6
  • No debt

    Monolithic Power Systems has no borrowings on its latest balance sheet.

  • Debt not rising

    With no debt today, leverage cannot have risen.

  • Debt covered by cash flow

    There is no debt to cover.

  • Interest well covered

    No meaningful interest expense to cover.

  • Short-term assets cover short-term debts

    Current assets are 4.98 times current liabilities.

  • Low bankruptcy risk

    The Altman Z-score is 57.86; above 3 is the safe zone and below 1.8 the distress zone.

Dividend4/6
  • Pays a dividend

    Monolithic Power Systems paid dividends worth 0.5% of the share price over the last twelve months.

  • Yield below Treasuries

    The 0.5% yield is below the 4.4% on a 1-year Treasury.

  • Yield below the top quarter

    The top quarter of US dividend payers yield 3.8% or more; Monolithic Power Systems yields 0.5%.

  • Dividend not cut

    The dividend per share has not fallen by more than 10% in any of the last 10 fiscal years.

  • Covered by earnings

    Dividends take 41.1% of net income.

  • Covered by free cash flow

    Dividends take 56.2% of free cash flow.

Scores of similar companies

Our estimate per share

$694.41

The share price is 113% above this estimate.

20%+ below
Near fair value
20%+ above
$1,478.69Price$694.41Fair value
MethodMultiple usedOwn 5Y medianIndustry medianValue per shareWeight
P/E45.0×67.2×34.6×$736.6547%
EV/EBITDA30.0×57.6×21.3×$639.4041%
P/B9.1×14.5×3.5×$718.0012%
Earnings powerleft out, too far from the others14.4% cost of equity––$100.78–
Fair value$694.41100%

Valuation over time

Using the earnings and balance sheet published at each date, not today's.

  • P/E at month end
  • Own 5-year median 67.2
  • Electronic Components and Accessories median 34.6

An estimate from reported numbers and market multiples, not a price target or investment advice. It can be far off for companies whose profits are about to change sharply.

Market risk

From the past year of daily prices.

Liquidity

Low risk

Average value traded per day
$1.25B
Value traded per 1% price move
$402.45M

Downside

Medium risk

Typical loss in a bad month
18.7%
Volatility (annualized)
58%
Sharpe ratio, 1 year
0.81
Beta to the S&P 500 (5Y)
1.90

Typical bad-month loss, week by week

25%: high

Margins

Share of revenue, fiscal years 2011 to 2025

Gross margin

55.2%+0.0 pts over 5 years

Operating margin

26.1%+7.3 pts over 5 years

Net margin

22.3%+2.8 pts over 5 years

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