Compare Stocks › MPWR vs NOW
Monolithic Power Systems, Inc. (MPWR) vs ServiceNow, Inc. (NOW)
MPWR
Monolithic Power Systems, Inc.
$1583.48
VS
NOW
ServiceNow, Inc.
$91.16
Rewards
MPWR
- ★Monolithic Power Systems, Inc. scores 76/100 on the Economic Moat Score (Wide Moat), with reinvestment efficiency as the strongest competitive dimension.
- ★Free cash flow has grown at a 52.3% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Each dollar of retained earnings has created $1.06 of earning power — management is creating shareholder value.
NOW
- ★Gross margin of 76.6% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Free cash flow has grown at a 27.8% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Each dollar of retained earnings has created $3.22 of earning power — management is an exceptional capital allocator.
Risks
MPWR
- ⚠Buybacks have been poorly timed — 2 out of 3 years involved repurchases at relatively expensive valuations.
- ⚠Despite buyback spending, shares outstanding increased in 2 out of 3 years — stock-based compensation is offsetting repurchases.
- ⚠Trailing P/E of 113.7x is 133% above the historical average of 48.7x — the stock trades at a premium to its own history.
NOW
- ⚠Despite buyback spending, shares outstanding increased in 3 out of 3 years — stock-based compensation is offsetting repurchases.
- ⚠FCF yield of 5.4% suggests reasonable valuation assuming continued moderate growth.
- ⚠PEG ratio of 23.59 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
Key Valuation Metrics
Learn more →MPWR
NOW
Valuation
N/A
Free Cash Flow
$5.11B
N/A
FCF Yield
5.43%
113.67
Trailing P/E
54.26
52.50
Forward P/E
18.22
Quality & Moat
N/A
ROIC
10.39%
N/A
ROE
14.90%
55.17%
Gross Margin
76.56%
2.81
PEG Ratio
23.59
Balance Sheet Safety
N/A
Debt / Equity
0.21
No debt
Interest Coverage
N/A
-1.60
Net Debt / EBITDA
-0.95
0.51%
Dividend Yield
N/A
MPWR: 2NOW: 3
MPWRNOW
Historical Fundamentals
Learn more →MPWR
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
NOW
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
$1 Retained Earnings Test
Learn more →MPWR
$14.25
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$1.93B
Δ Market Cap
+$27.49B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
NOW
$16.65
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$4.90B
Δ Market Cap
+$81.66B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
Discounted Cash Flow (DCF) Analysis
Learn more →MPWR
102.8% Overvalued
Price is 102.8% above estimated fair value
Current Price: $1583.48
Strongly undervalued
Fairly valued
Strongly overvalued
Fair Value: $780.78
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
NOW
9.7% Overvalued
Price is 9.7% above estimated fair value
Current Price: $91.16
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $83.12
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →MPWR
Requires positive FCF to compute implied growth rate.
NOW
What growth rate is the market pricing in at $91?
+20.8%
Market-Implied Owner Earnings Growth
Standard FCF implies +6.2%
The market implies +20.8% Owner Earnings growth, below historical trends — potential opportunity.
Standard FCF implies a more demanding +6.2%, reflecting heavy growth investment expected to generate future returns.
Economic Moat Score
Learn more →MPWR
76/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None
Wide moat driven primarily by reinvestment efficiency. Revenue Predictability is the area most vulnerable to competitive pressure.
Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.
NOW
61/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None
Narrow moat with revenue predictability as the key competitive advantage. Improving roic consistency would strengthen the moat.
Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 5 years of fundamental data.
Forensic Accounting
Learn more →MPWR
-2.51
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
NOW
-2.87
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone
M-Score Trend
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
Ownership Breakdown
Learn more →MPWR
Insiders 3.8%Institutions 101.5%
No. of Institutional Holders1,560
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
NOW
Insiders 0.2%Institutions 90.5%Retail & Other 9.3%
No. of Institutional Holders3,112
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.
Insider Buying Activity
Learn more →MPWR
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
NOW
1
Buys (3M)
1
Buys (12M)
Total value (12M): $3.00M
MCDERMOTT WILLIAM R
Chief Executive Officer
$3.00M
@ $104.60 · 2026-02-27
Open market purchases · includes direct & indirect ownership · excludes option exercises
Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →MPWR
13
Sells (3M)
45
Sells (12M)
Total value (12M): $591.44M
TSENG SARIA H
General Counsel
$11.70M
@ $1305.22 · 2026-04-08
TSENG SARIA H
General Counsel
$8.92M
@ $1167.95 · 2026-04-06
TSENG SARIA H
General Counsel
$1.59M
@ $1133.52 · 2026-04-01
TSENG SARIA H
General Counsel
$25.94M
@ $1010.50 · 2026-03-30
HSING MICHAEL R
Chief Executive Officer
$38.67M
@ $1171.83 · 2026-02-12
HSING MICHAEL R
Chief Executive Officer
$39.23M
@ $1188.92 · 2026-02-11
HSING MICHAEL R
Chief Executive Officer
$38.84M
@ $1142.28 · 2026-02-10
LEE VICTOR K
Director
$484,864
@ $1212.16 · 2026-02-09
HSING MICHAEL R
Chief Executive Officer
$64.32M
@ $1171.16 · 2026-02-06
XIAO DEMING
Officer
$26.79M
@ $1171.16 · 2026-02-06
SCIAMMAS MAURICE
Officer
$26.79M
@ $1171.16 · 2026-02-06
BLEGEN THEODORE
Chief Financial Officer
$25.44M
@ $1171.16 · 2026-02-06
TSENG SARIA H
General Counsel
$26.79M
@ $1171.16 · 2026-02-06
BLEGEN THEODORE
Chief Financial Officer
$3.39M
@ $1129.76 · 2026-02-02
LEE VICTOR K
Director
$558,516
@ $930.86 · 2026-01-02
BLEGEN THEODORE
Chief Financial Officer
$2.82M
@ $940.47 · 2026-01-02
LEE VICTOR K
Director
$951,719
@ $951.72 · 2025-12-24
BLEGEN THEODORE
Chief Financial Officer
$2.72M
@ $908.21 · 2025-12-01
TSENG SARIA H
General Counsel
$18.53M
@ $926.47 · 2025-11-26
CHANG KUO WEI HERBERT
Director
$89,697
@ $896.97 · 2025-11-25
TSENG SARIA H
General Counsel
$18.08M
@ $904.18 · 2025-11-25
SCIAMMAS MAURICE
Officer
$3.56M
@ $895.23 · 2025-11-24
CHANG KUO WEI HERBERT
Director
$87,397
@ $873.97 · 2025-11-21
SCIAMMAS MAURICE
Officer
$6.12M
@ $870.21 · 2025-11-19
SCIAMMAS MAURICE
Officer
$24.66M
@ $881.66 · 2025-11-19
HSING MICHAEL R
Chief Executive Officer
$35.72M
@ $965.52 · 2025-11-12
HSING MICHAEL R
Chief Executive Officer
$38.34M
@ $958.39 · 2025-11-11
BLEGEN THEODORE
Chief Financial Officer
$3.07M
@ $1024.43 · 2025-11-03
TSENG SARIA H
General Counsel
$1.41M
@ $1087.62 · 2025-10-24
TSENG SARIA H
General Counsel
$17.14M
@ $1017.77 · 2025-10-16
BLEGEN THEODORE
Chief Financial Officer
$2.74M
@ $913.22 · 2025-10-01
MARTINEZ CARINTIA
Director
$1.26M
@ $900.00 · 2025-09-18
TSENG SARIA H
General Counsel
$13.27M
@ $914.45 · 2025-09-18
BLEGEN THEODORE
Chief Financial Officer
$2.44M
@ $814.34 · 2025-09-02
ELMIGER EUGEN J
Director
$3.39M
@ $846.71 · 2025-08-29
ZHOU JEFFREY
Director
$167,910
@ $870.00 · 2025-08-27
HSING MICHAEL R
Chief Executive Officer
$16.77M
@ $829.10 · 2025-08-15
ZHOU JEFFREY
Director
$340,000
@ $850.00 · 2025-08-13
ZHOU JEFFREY
Director
$166,000
@ $830.00 · 2025-08-12
XIAO DEMING
Officer
$31.20M
@ $780.00 · 2025-08-01
BLEGEN THEODORE
Chief Financial Officer
$2.25M
@ $750.00 · 2025-08-01
BLEGEN THEODORE
Chief Financial Officer
$4.50M
@ $750.00 · 2025-07-01
CHANG KUO WEI HERBERT
Director
$36,900
@ $738.00 · 2025-05-13
CHANG KUO WEI HERBERT
Director
$69,800
@ $698.00 · 2025-05-12
CHANG KUO WEI HERBERT
Director
$65,000
@ $650.00 · 2025-05-08
HSING MICHAEL R
Chief Executive Officer
$3.64M
@ $700.00 · 2025-02-18
HSING MICHAEL R
Chief Executive Officer
$1.86M
@ $717.10 · 2025-02-10
XIAO DEMING
Officer
$474,721
@ $717.10 · 2025-02-10
SCIAMMAS MAURICE
Officer
$474,721
@ $717.10 · 2025-02-10
BLEGEN THEODORE
Chief Financial Officer
$381,498
@ $717.10 · 2025-02-10
TSENG SARIA H
General Counsel
$475,438
@ $717.10 · 2025-02-10
HSING MICHAEL R
Chief Executive Officer
$8.37M
@ $700.00 · 2025-02-07
HSING MICHAEL R
Chief Executive Officer
$2.55M
@ $700.00 · 2025-01-24
BLEGEN THEODORE
Chief Financial Officer
$1.50M
@ $600.00 · 2024-12-09
HSING MICHAEL R
Chief Executive Officer
$2.15M
@ $765.15 · 2024-11-08
XIAO DEMING
Officer
$662,611
@ $765.14 · 2024-11-08
SCIAMMAS MAURICE
Officer
$662,611
@ $765.14 · 2024-11-08
BLEGEN THEODORE
Chief Financial Officer
$561,620
@ $765.15 · 2024-11-08
TSENG SARIA H
General Counsel
$662,611
@ $765.14 · 2024-11-08
BLEGEN THEODORE
Chief Financial Officer
$1.93M
@ $772.96 · 2024-11-01
SCIAMMAS MAURICE
Officer
$10.23M
@ $929.59 · 2024-10-07
BLEGEN THEODORE
Chief Financial Officer
$2.27M
@ $908.36 · 2024-10-01
BLEGEN THEODORE
Chief Financial Officer
$2.26M
@ $904.20 · 2024-09-03
CHANG KUO WEI HERBERT
Director
$178,688
@ $893.44 · 2024-08-15
HSING MICHAEL R
Chief Executive Officer
$3.53M
@ $827.18 · 2024-08-09
HSING MICHAEL R
Chief Executive Officer
$2.17M
@ $778.39 · 2024-08-08
XIAO DEMING
Officer
$668,637
@ $778.39 · 2024-08-08
SCIAMMAS MAURICE
Officer
$668,637
@ $778.39 · 2024-08-08
BLEGEN THEODORE
Chief Financial Officer
$566,668
@ $778.39 · 2024-08-08
TSENG SARIA H
General Counsel
$668,637
@ $778.39 · 2024-08-08
BLEGEN THEODORE
Chief Financial Officer
$2.13M
@ $852.51 · 2024-08-01
HSING MICHAEL R
Chief Executive Officer
$7.99M
@ $831.58 · 2024-07-22
XIAO DEMING
Officer
$2.67M
@ $831.58 · 2024-07-22
SCIAMMAS MAURICE
Officer
$2.67M
@ $831.58 · 2024-07-22
BLEGEN THEODORE
Chief Financial Officer
$2.15M
@ $831.58 · 2024-07-22
TSENG SARIA H
General Counsel
$2.67M
@ $831.58 · 2024-07-22
SCIAMMAS MAURICE
Officer
$9.28M
@ $843.83 · 2024-07-08
TSENG SARIA H
General Counsel
$1.53M
@ $824.65 · 2024-07-02
HSING MICHAEL R
Chief Executive Officer
$2.15M
@ $804.57 · 2024-07-01
BLEGEN THEODORE
Chief Financial Officer
$2.01M
@ $804.19 · 2024-07-01
TSENG SARIA H
General Counsel
$29.98M
@ $808.20 · 2024-07-01
LEE VICTOR K
Director
$820,460
@ $820.46 · 2024-06-28
BLEGEN THEODORE
Chief Financial Officer
$1.83M
@ $731.77 · 2024-06-05
HSING MICHAEL R
Chief Executive Officer
$5.85M
@ $731.08 · 2024-06-03
XIAO DEMING
Officer
$1.00M
@ $769.40 · 2024-05-22
CHANG KUO WEI HERBERT
Director
$150,000
@ $750.00 · 2024-05-20
ZHOU JEFFREY
Director
$150,000
@ $750.00 · 2024-05-20
CHANG KUO WEI HERBERT
Director
$147,000
@ $735.00 · 2024-05-15
HSING MICHAEL R
Chief Executive Officer
$1.95M
@ $690.00 · 2024-05-08
XIAO DEMING
Officer
$599,627
@ $690.02 · 2024-05-08
SCIAMMAS MAURICE
Officer
$599,610
@ $690.00 · 2024-05-08
BLEGEN THEODORE
Chief Financial Officer
$508,515
@ $689.98 · 2024-05-08
TSENG SARIA H
General Counsel
$599,627
@ $690.02 · 2024-05-08
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
NOW
5
Sells (3M)
48
Sells (12M)
Total value (12M): $28.54M
CANNEY JACQUELINE P
Officer
$799,868
@ $89.60 · 2026-04-24
FIPPS PAUL
Officer
$376,142
@ $101.77 · 2026-02-23
FIPPS PAUL
Officer
$1.02M
@ $105.93 · 2026-02-18
MCBRIDE KEVIN THOMAS
Officer
$147,994
@ $105.71 · 2026-02-13
CHAMBERLAIN PAUL EDWARD
Director
$151,755
@ $101.17 · 2026-02-12
MASTANTUONO GINA
President
$352,750
@ $850.00 · 2025-12-05
JACKSON LAWRENCE
Director
$214,708
@ $810.22 · 2025-11-28
MASTANTUONO GINA
President
$336,936
@ $808.00 · 2025-11-28
CHAMBERLAIN PAUL EDWARD
Director
$242,400
@ $808.00 · 2025-11-28
FIPPS PAUL
Officer
$249,353
@ $817.55 · 2025-11-18
ELMER RUSSELL S.
General Counsel
$160,155
@ $838.51 · 2025-11-18
CANNEY JACQUELINE P
Officer
$200,549
@ $839.12 · 2025-11-18
TZITZON NICHOLAS
Officer
$431,736
@ $827.08 · 2025-11-18
MCBRIDE KEVIN THOMAS
Officer
$235,894
@ $842.48 · 2025-11-14
ELMER RUSSELL S.
General Counsel
$52,848
@ $852.39 · 2025-11-13
CANNEY JACQUELINE P
Officer
$56,257
@ $852.38 · 2025-11-13
ELMER RUSSELL S.
General Counsel
$164,997
@ $863.86 · 2025-11-10
CANNEY JACQUELINE P
Officer
$222,012
@ $863.86 · 2025-11-10
SANDS ANITA M
Director
$1.00M
@ $915.11 · 2025-08-29
MCDERMOTT WILLIAM R
Chief Executive Officer
$5.34M
@ $916.63 · 2025-08-28
FIPPS PAUL
Officer
$1.30M
@ $895.32 · 2025-08-20
ELMER RUSSELL S.
General Counsel
$1.50M
@ $884.26 · 2025-08-20
MCDERMOTT WILLIAM R
Chief Executive Officer
$1.43M
@ $900.00 · 2025-08-19
MASTANTUONO GINA
President
$1.53M
@ $866.45 · 2025-08-18
CANNEY JACQUELINE P
Officer
$1.35M
@ $866.45 · 2025-08-18
TZITZON NICHOLAS
Officer
$1.49M
@ $866.45 · 2025-08-18
MCBRIDE KEVIN THOMAS
Officer
$238,496
@ $851.77 · 2025-08-15
CHAMBERLAIN PAUL EDWARD
Director
$258,000
@ $860.00 · 2025-08-14
MASTANTUONO GINA
President
$72,288
@ $860.57 · 2025-08-13
CANNEY JACQUELINE P
Officer
$57,658
@ $860.57 · 2025-08-13
MASTANTUONO GINA
President
$256,490
@ $878.39 · 2025-08-08
CANNEY JACQUELINE P
Officer
$225,746
@ $878.39 · 2025-08-08
JACKSON LAWRENCE
Director
$749,805
@ $990.50 · 2025-07-29
CANNEY JACQUELINE P
Officer
$341,631
@ $965.06 · 2025-07-16
SANDS ANITA M
Director
$250,950
@ $1050.00 · 2025-07-03
MCBRIDE KEVIN THOMAS
Officer
$283,310
@ $1011.82 · 2025-06-03
SANDS ANITA M
Director
$250,267
@ $1009.14 · 2025-06-02
MCDERMOTT WILLIAM R
Chief Executive Officer
$2.07M
@ $1012.01 · 2025-05-30
CANNEY JACQUELINE P
Officer
$147,900
@ $1020.00 · 2025-05-30
TZITZON NICHOLAS
Officer
$1.19M
@ $1020.00 · 2025-05-30
BRIGGS TERESA
Director
$216,913
@ $1013.61 · 2025-05-27
SANDS ANITA M
Director
$433,825
@ $1013.61 · 2025-05-27
LUDDY FREDERIC B
Director
$428,000
@ $1000.00 · 2025-05-23
MASTANTUONO GINA
President
$121,570
@ $1030.25 · 2025-05-19
ELMER RUSSELL S.
General Counsel
$83,450
@ $1030.25 · 2025-05-19
CANNEY JACQUELINE P
Officer
$96,844
@ $1030.26 · 2025-05-19
CHAMBERLAIN PAUL EDWARD
Director
$310,326
@ $1034.42 · 2025-05-15
MASTANTUONO GINA
President
$85,932
@ $1023.00 · 2025-05-13
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.
🎭 Mr. Market's Mood
Learn more →MPWR
😏Greed(63/100)
"Market is optimistic — be cautious and ensure you have a margin of safety"
Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
NOW
😨Fear(33/100)
"Market is pessimistic — investigate whether fears are temporary or structural"
Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
⚖️ Buffett Signal
Learn more →MPWR
⚪Awaiting DCF Data
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
DCF Margin of Safety: N/AMr. Market's Mood: Greed (63)
NOW
⚪Awaiting DCF Data
The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.
DCF Margin of Safety: N/AMr. Market's Mood: Fear (33)