MMarketMath

MPWR

Fast growerQuality: High (80/100)2 red flags

Monolithic Power Systems · Information Technology · Semiconductors

$1,285.03

52w 800.97 – 1,714.09

20y monthly, adjusted

Mkt cap

$63.2B

P/E

103.6

P/FCF

96.7

FCF yield

1.0%

ROE

17.6%

Shldr yield

0.5%

div 0.4% + bb 0.0%

What today's price assumes

At $63.2B, the market is pricing in 29.4% annual free-cash-flow growth for the next decade (10% discount rate, 2.5% terminal growth). Over the last ten years, FCF actually grew 28.6% per year — expectations are roughly in line with history.

Simple DCF per-share range: $207 · $463 · $668 (4% / base / optimistic growth). An estimate, not a target.

Adjust the assumptions yourself →

Historical multiple lens

At its own median P/OCF of 34.5× across 17 years, MPWR would trade near $589/share (25th–75th percentile: $392–$771); it trades at 75.3× today.

Assumes the historical multiple regime persists — re-ratings can be permanent.

Growth record

Compound annual growth rates from as-filed 10-K data, split-adjusted

Rev 3y

+15.9%

Rev 5y

+27.0%

Rev 10y

+23.7%

EPS 5y

+29.7%

EPS 10y

+31.1%

FCF 5y

+25.7%

FCF 10y

+28.6%

Fundamentals

Fiscal 2009–2025, from SEC filings

Revenue

2009: $165.0M
2010: $218.8M
2011: $196.5M
2012: $213.8M
2013: $238.1M
2014: $282.5M
2015: $333.1M
2016: $388.7M
2017: $470.9M
2018: $582.4M
2019: $627.9M
2020: $844.5M
2021: $1.2B
2022: $1.8B
2023: $1.8B
2024: $2.2B
2025: $2.8B
$0$1.0B$2.0B
09
12
15
18
21
24

Net income

2009: $19.7M
2010: $29.6M
2011: $13.3M
2012: $15.8M
2013: $22.9M
2014: $35.5M
2015: $35.2M
2016: $52.7M
2017: $65.2M
2018: $105.3M
2019: $108.8M
2020: $164.4M
2021: $242.0M
2022: $437.7M
2023: $427.4M
2024: $1.6B
2025: $621.5M
$0$500.0M$1.0B$1.5B
09
12
15
18
21
24

Free cash flow

2009: $21.8M
2010: $25.7M
2011: $22.7M
2012: $3.9M
2013: $44.9M
2014: $64.6M
2015: $53.7M
2016: $70.7M
2017: $68.1M
2018: $118.9M
2019: $120.5M
2020: $212.2M
2021: $225.6M
2022: $187.8M
2023: $580.6M
2024: $642.3M
2025: $666.2M
$0$200.0M$400.0M$600.0M
09
12
15
18
21
24

Diluted shares (lower is better)

2009: 35.2M
2010: 35.2M
2011: 35.2M
2012: 36.2M
2013: 38.6M
2014: 39.8M
2015: 40.9M
2016: 41.9M
2017: 43.6M
2018: 44.6M
2019: 45.8M
2020: 47.0M
2021: 47.9M
2022: 48.4M
2023: 48.8M
2024: 48.8M
2025: 48.3M
020.0M40.0M
09
12
15
18
21
24

Margins

0%25%50%75%091215182124
Net marginFCF marginGross margin

Capital returned (dividends + buybacks)

2010: $31.5M
2011: $38.5M
2012: $35.7M
2013: $20.6M
2014: $41.2M
2015: $32.3M
2017: $33.9M
2018: $47.5M
2019: $67.3M
2020: $88.8M
2021: $109.4M
2022: $138.0M
2023: $189.5M
2024: $876.8M
2025: $291.4M
$0$250.0M$500.0M$750.0M
09
12
15
18
21
24

Cash vs long-term debt

$0$500.0M$1.0B091215182124
CashLT debt

Quarterly

Discrete quarters from 10-Q filings; Q4 derived as fiscal year minus Q1–Q3. OCF is unwound from the year-to-date figures 10-Qs report. Compare to the same quarter a year ago — most businesses are seasonal.

Revenue by quarter

Q2'23: $441.1M
Q3'23: $474.9M
Q4'23: $454.0M
Q1'24: $457.9M
Q2'24: $507.4M
Q3'24: $620.1M
Q4'24: $621.7M
Q1'25: $637.6M
Q2'25: $664.6M
Q3'25: $737.2M
Q4'25: $751.2M
Q1'26: $804.2M
Q2'26: $980.6M
$0$250.0M$500.0M$750.0M
23
24
24
25
26

Net income by quarter

Q2'23: $99.5M
Q3'23: $121.2M
Q4'23: $96.9M
Q1'24: $92.5M
Q2'24: $100.4M
Q3'24: $144.4M
Q4'24: $1.3B
Q1'25: $135.1M
Q2'25: $135.0M
Q3'25: $179.8M
Q4'25: $171.7M
Q1'26: $193.2M
Q2'26: $257.3M
$0$500.0M$1.0B
23
24
24
25
26
QuarterRevenueYoYNet incomeYoYEPSOCF
Q2'26$980.6M+47.6%$257.3M+90.6%5.22$227.9M
Q1'26$804.2M+26.1%$193.2M+43.1%3.92$250.3M
Q4'25 *$751.2M+20.8%$171.7M−86.3%3.50$104.9M
Q3'25$737.2M+18.9%$179.8M+24.5%3.74$239.3M
Q2'25$664.6M+31.0%$135.0M+34.5%2.81$237.6M
Q1'25$637.6M+39.2%$135.1M+45.9%2.81$256.4M
Q4'24 *$621.7M+36.9%$1.3B+1194.8%25.71$167.7M
Q3'24$620.1M+30.6%$144.4M+19.2%2.95$231.7M
Q2'24$507.4M+15.0%$100.4M+0.9%2.05$141.0M
Q1'24$457.9M+1.5%$92.5M−15.7%1.89$248.1M
Q4'23 *$454.0M−1.3%$96.9M−18.6%1.98$153.3M
Q3'23$474.9M−4.1%$121.2M−2.6%2.48$175.9M
Q2'23$441.1M−4.3%$99.5M−13.2%2.04$90.2M

Track record

Compound annual growth by period. For debt and share count, negative is the good direction.

Series3y5y10y15y
Revenue+15.9%+27.0%+23.7%+18.5%
Operating cash flow+50.3%+25.6%+28.2%+20.9%
Free cash flow+52.5%+25.7%+28.6%+24.2%
EPS (diluted)+12.4%+29.7%+31.1%+90.1%
Equity+28.4%+29.6%+25.4%+19.4%
LT debt
Diluted shares−0.0%+0.5%+1.7%+2.1%
Stock price+36.1%+21.9%+33.6%+37.5%

$100, 3 years ago

$252vs $176 in SPY

36.1% vs 20.7%/yr

$100, 5 years ago

$269vs $181 in SPY

21.9% vs 12.6%/yr

$100, 10 years ago

$1,818vs $412 in SPY

33.6% vs 15.2%/yr

$100, 15 years ago

$11,926vs $813 in SPY

37.5% vs 15.0%/yr

The $1 test — market value created per $1 of earnings retained (Buffett's hurdle: at least $1)

Last 5 years

$16.11

$38.1B created / $2.4B retained

Last 10 years

$19.75

$51.8B created / $2.6B retained

Quality & capital discipline

Cash-based returns and how management deploys capital

Cash ROIC

23.7%

OCF ÷ (equity + debt)

OCF / EV yield

1.3%

MC vs 10× OCF

7.68

≤1 = priced under 10× OCF

Debt / FCF

SBC / FCF

34.1%

Owner earnings

$438.7M

OCF − capex − SBC

OE yield

0.7%

Share count 5y

+2.0%

per year; negative = buybacks

Capital intensity

22.5%

net PP&E ÷ revenue

Sales efficiency

$0.18

new PP&E per $1 new revenue, 5y

Growth engine (5y): reinvested 63.6% of operating cash flow at an incremental return of 31.7% — an organically fundable growth rate of about 20.1% per year (growth ≈ reinvestment rate × incremental ROIC).

Checklist

18 of 26 checks pass · 69%. Checks with structurally missing inputs are excluded.

Growth & Consistency

7/7

  • Revenue growth

    27.0% · 5y CAGR ≥ 5%

    pass
  • EPS growth

    29.7% · 5y CAGR ≥ 5%

    pass
  • FCF growth

    25.7% · 5y CAGR ≥ 5%

    pass
  • Revenue rises consistently

    9 of 9 · up in ≥ 7 of last 10 years

    pass
  • FCF consistently positive

    10 of 10 · positive in ≥ 8 of last 10 years

    pass
  • Profitable every year

    10 of 10 · net income > 0 in ≥ 8 of last 10

    pass
  • Cash flow keeps up with sales

    25.6% vs 27.0% · OCF CAGR ≥ 0.9× revenue CAGR

    pass

Profitability

6/7

  • Net margin

    22.3% · ≥ 8%

    pass
  • Operating margin

    26.1% · ≥ 10%

    pass
  • Gross margin stable or rising

    55.2% vs 58.4% · no drop > 2 pts over 3y

    fail
  • Return on equity

    17.6% · ≥ 12%

    pass
  • Cash ROIC

    23.7% · ≥ 12%

    pass
  • FCF margin

    23.9% · ≥ 5%

    pass
  • Earnings back their cash

    OCF $838.2M vs NI $621.5M · OCF ≥ net income (latest FY)

    pass

Balance Sheet

4/4

  • Debt payable from cash flow

    no debt · LT debt ≤ 3× FCF

    pass
  • Cash cushion

    · cash ≥ 50% of LT debt

    pass
  • Leverage

    · LT debt ≤ 1.5× equity

    pass
  • Equity positive and compounding

    $3.5B · equity > 0 and grew over ~5y

    pass
  • Interest burden

    · interest ≤ 15% of operating income

    na

Capital Allocation

1/4

  • Share count flat or shrinking

    2.0% · ≤ +0.5%/yr over ~5y

    fail
  • Stock comp restrained

    34% · SBC ≤ 15% of FCF

    fail
  • Distributions funded by FCF

    44% · dividends + buybacks ≤ 100% of FCF

    pass
  • Repurchases are a habit

    3 of 10 · buybacks in ≥ 5 of last 10 years

    fail

Valuation Discipline

0/4

  • FCF yield

    1.0% · ≥ 3%

    fail
  • Earnings multiple

    103.6 · P/E ≤ 25

    fail
  • Price asks less than history delivered

    29.4% vs 28.6% · implied FCF growth ≤ historical FCF CAGR

    fail
  • Shareholder yield

    0.5% · dividends + buybacks ≥ 2% of market cap

    fail

Red flags

Mechanical checks — a flag is a question to investigate, not a verdict

Heavy stock compensation

Stock-based compensation consumes more than 30% of free cash flow.

Shareholder dilution

Diluted share count has grown by more than 2% per year over ~5 years.

Financial data

As filed in 10-Ks; per-share figures split-adjusted. $ in millions.

FYRevenueGross profitOp incomeNet incomeEPSOCFCapExFCFDividendsBuybacksSBCCashLT debtEquityShares
20252,7901,54072962112.8683817266628572271,0993,53148
20242,2071,2215391,59232.607881466422416362066922,95149
20231,8211,0214824278.766385858118641505282,05049
20221,7941,0495274389.052475918813801612891,66948
20211,2086852622425.053209422610901231891,24448
20208444661591643.5026856212898633596747
20196283461031092.3821696120677917377346
20185823231131052.3614123119476117364045
201747125877651.50134666834538352244
201638921154531.2610837714511343142
201533318041350.8670165432429136941
201428315335350.89741065413312634640
201323812824230.59611645212110132339
201221411317160.432521436197525836
201119710213130.3844212338139624335
201021912130300.0048232632174824735
20091659820200.56321022154721335

Some concepts are structurally absent for certain industries (banks report no gross profit or capex). Missing ≠ zero.