ARM vs MPWR vs PDFS Stock Comparison

Arm Holdings, Monolithic Power Systems and Pdf Solutions Prices as of Oct 29, 2026 Peers: Industry group
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ARM Arm Holdings Plc /Uk
$228.77 -22.1% 1M +34.3% 1Y
Market cap
$213.65B
P/E
204.6x
Revenue (TTM)
$5.16B
Div. yield
–
Semiconductor Design Technology
2 wins
PDFS Pdf Solutions Inc
$45.56 -8.5% 1M +55.9% 1Y
Market cap
$1.72B
P/E
166.5x
Revenue (TTM)
$241.18M
Div. yield
–
Semiconductor EDA Software Technology
2 wins

Head to Head

9 decided of 12

Monolithic Power Systems leads on 5 of the 12 questions below (Monolithic Power Systems 5, Arm Holdings 2, Pdf Solutions 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionARMMPWRPDFSLeader
Larger companyMarket capitalisation $213.65B $58.03B $1.72B ARM
Cheaper on earningsLower P/E, profitable companies only 204.6x 65.0x 166.5x MPWR
Cheaper on forward earningsLower price / next fiscal year consensus EPS 110.5x 45.5x 33.5x PDFS
Faster revenue growthRevenue growth, trailing twelve months +25.1% +40.5% +23.0% MPWR
More profitableNet margin, trailing twelve months 20.2% — 4.3% ARM
Better return on capitalReturn on invested capital — — 3.1% –
Less leveragedLower net debt / EBITDA — — -1.3x –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +34.3% +9.6% +55.9% PDFS
Better 5-year returnAnnualised price return, 5 years — +17.9%/yr +14.1%/yr MPWR
Less volatileAnnualised volatility, 1 year 78.9% 54.9% 69.4% MPWR
Higher overall scoreMean of the five percentile scores vs peers 62/100 62/100 46/100 MPWR

Percentile Scorecard

ARMMPWRPDFS

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisARMMPWRPDFS
Valuation 5 #89 of 94 17 #78 of 94 38 #59 of 94
Growth 86 #14 of 92 84 #16 of 92 85 #15 of 92
Profitability 77 #21 of 88 98 #3 of 88 40 #53 of 88
Financial Health 79 #21 of 96 73 #27 of 96 55 #44 of 96
Shareholder Returns – 41 #43 of 72 14 #62 of 72
Overall 62 62 46
  • ARM ranked among 103 companies in Semiconductors
  • MPWR ranked among 103 companies in Semiconductors
  • PDFS ranked among 103 companies in Semiconductors

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodARMMPWRPDFSSPY
1 month -22.1%-11.6%-8.5% +0.7%
3 months -5.3%-8.9%-1.3% +3.7%
6 months +8.8%-25.7%+6.3% +7.1%
Year to date +109.3%+32.3%+59.7% +12.8%
1 year +34.3%+9.6%+55.9% +11.9%
3 years +377.6%+196.7%+72.6% +85.2%
3 years, per year +68.5%+43.7%+20.0% +22.8%
5 years —+128.1%+93.6% +67.6%
5 years, per year —+17.9%+14.1% +10.9%
10 years —+1,437.5%+128.6% +262.0%
10 years, per year —+31.4%+8.6% +13.7%

Risk

MeasureARMMPWRPDFSSPY
Volatility, 1Y 78.9%54.9%69.4% 12.7%
Downside volatility, 1Y 71.4%58.8%71.9% 12.6%
Beta vs S&P 500, 1Y 3.482.583.08 1.00
Return / volatility, 1Y 0.430.170.81 0.94
Max drawdown, 5Y -54.0%-51.9%-65.5% -25.4%
From 52-week high -47.9%-29.1%-35.6% -1.2%
52-week high $439.46$1,689.89$70.79 $779.14
52-week low $104.55$856.96$23.97 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleARMMPWRPDFS
P/E now vs peer median 232.5xmedian 46.4x 65.9xmedian 46.4x 180.9xmedian 46.4x
P/S now vs peer median 47.1xmedian 7.8x 15.8xmedian 7.8x 7.9xmedian 7.8x
EV/EBITDA now vs peer median 206.2xmedian 27.5x —median 27.5x 49.8xmedian 27.5x
P/FCF now vs peer median 120.6xmedian 40.1x 114.4xmedian 40.1x -1,057xmedian 40.1x
P/B now vs peer median 28.1xmedian 4.7x 15.8xmedian 4.7x 5.1xmedian 4.7x
PEG now vs peer median 6.55median 2.10 2.60median 2.10 86.00median 2.10

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsARMMPWRPDFS
Revenue $5.16B $3.74B $241.18M
Gross profit $5.03B $2.07B $172.35M
Operating income $877.00M $1.10B $19.66M
Net income $1.04B – $10.31M
Free cash flow $2.01B – -$1.81M
R&D $2.96B $455.36M $70.34M
EPS (diluted) $0.98 $18.13 $0.25
Cash & equivalents $3.06B $560.54M $114.88M
Total debt – – $66.52M
Shares (diluted) 1.07B 49.26M 41.78M
Enterprise value $199.36B $58.03B $1.49B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricARMMPWRPDFS
P/E 232.5x 65.9x 180.9x
P/FCF 120.6x 114.4x -1,057x
P/Operating cash flow 115.9x – 49.3x
P/S 47.1x 15.8x 7.9x
P/B 28.1x 15.8x 5.1x
P/Tangible book 28.9x 15.8x 5.9x
EV/EBITDA 206.2x – 49.8x
EV/EBIT 272.3x – 94.6x
EV/Revenue 46.3x 15.8x 7.7x
EV/FCF 118.7x – -1,031x
EV/Operating cash flow 114.1x – 48.1x
PEG (3Y EPS CAGR) 6.55 2.60 86.00

Growth

14 metrics
MetricARMMPWRPDFS
Revenue growth (1Y) 25.1% 40.5% 23.0%
Revenue CAGR (3Y) 24.7% 27.0% 14.0%
Gross profit growth (1Y) 25.6% 40.6% 23.3%
Gross profit CAGR (3Y) 25.4% 25.8% 14.7%
Operating income growth (1Y) 14.9% 59.3% 10,088%
Operating income CAGR (3Y) 21.6% 29.4% 57.7%
Net income growth (1Y) 49.4% – 1,100%
Net income CAGR (3Y) 37.2% – 4.4%
EPS growth (1Y) 48.7% -48.9% 1,028%
EPS CAGR (3Y) 35.5% 25.3% 2.1%
Operating cash flow growth (1Y) 105.5% – 170.5%
Operating cash flow CAGR (3Y) 34.7% – 26.6%
Free cash flow growth (1Y) 121.8% – 85.2%
Free cash flow CAGR (3Y) 33.3% – -29.8%

Profitability

14 metrics
MetricARMMPWRPDFS
Gross margin 97.5% – 71.5%
EBITDA margin 22.5% – 15.5%
Operating margin 17.0% – 8.2%
Pretax margin 24.5% – 6.9%
Net margin 20.2% – 4.3%
FCF margin 39.0% – -0.7%
Operating cash flow margin 40.6% – 16.0%
Return on equity 16.3% 23.4% 3.2%
Return on assets 12.6% 19.1% 2.2%
Return on invested capital – – 3.1%
Return on capital employed 9.0% – 4.9%
Asset turnover 0.5x 0.8x 0.5x
Cash conversion (OCF / net income) 2.0x – 3.8x
Stock comp / revenue 22.4% – 10.6%

Financial Health

11 metrics
MetricARMMPWRPDFS
Debt / assets – – 12.8%
Debt / equity – – 0.2x
Net debt / EBITDA – – -1.3x
Debt / FCF – – -36.9x
Liabilities / assets 22.9% 20.1% 28.3%
Equity / assets 77.1% 79.9% 71.7%
Interest coverage – – 4.3x
Current ratio 5.3x 3.7x 3.4x
Quick ratio 4.9x – 3.4x
Cash ratio 3.2x – 1.6x
Altman Z-score 58.61 – 8.58

Shareholder Returns

7 metrics
MetricARMMPWRPDFS
Dividend yield – 0.6% –
Net buyback yield – – -4.5%
Shareholder yield – 0.6% -4.5%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusARMMPWRPDFS
Forward P/E 110.5xFY2026 45.5xFY2026 33.5xFY2026
EPS, next fiscal year $2.07FY2026 $26.37FY2026 $1.36FY2026
EPS growth, next FY +16.9%FY2026 +48.4%FY2026 +44.7%FY2026
EPS growth, the year after +49.8% +41.9% +16.9%
Revenue, next fiscal year $5.71BFY2026 $4.27BFY2026 $273.57MFY2026
Revenue growth, next FY +16.0%FY2026 +53.1%FY2026 +24.9%FY2026
Revenue growth, the year after +38.7% +34.8% +13.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersARMMPWRPDFS
Held by institutions 9.3% 96.9% 93.0%
Institutions holding 956 1,247 284
Change in shares held, QoQ +12.4% +3.2% +20.8%
Institutions buying 593 642 191
Institutions selling 258 459 61
Buyers to sellers 2.30 1.40 3.13

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

ARMMPWRPDFS
ARM 1.00 0.54 0.53
MPWR 0.54 1.00 0.67
PDFS 0.53 0.67 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ARM, MPWR and PDFS?

Arm Holdings (ARM) is the largest by market capitalisation: Arm Holdings (ARM) $213.65B, Monolithic Power Systems (MPWR) $58.03B, Pdf Solutions (PDFS) $1.72B.

Which stock is cheaper, ARM, MPWR and PDFS?

Monolithic Power Systems (MPWR) trades on the lowest price-to-earnings ratio (Arm Holdings (ARM) 204.6x, Monolithic Power Systems (MPWR) 65.0x, Pdf Solutions (PDFS) 166.5x). On next year's consensus earnings, Pdf Solutions (PDFS) is cheapest (Arm Holdings (ARM) 110.5x, Monolithic Power Systems (MPWR) 45.5x, Pdf Solutions (PDFS) 33.5x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Monolithic Power Systems (MPWR) grew revenue fastest over the trailing twelve months: Arm Holdings (ARM) +25.1%, Monolithic Power Systems (MPWR) +40.5%, Pdf Solutions (PDFS) +23.0%.

Which company is more profitable?

Arm Holdings (ARM) has the highest net margin (Arm Holdings (ARM) 20.2%, Pdf Solutions (PDFS) 4.3%).

Which stock has performed better?

Over the past year Pdf Solutions (PDFS) returned the most: Arm Holdings (ARM) +34.3%, Monolithic Power Systems (MPWR) +9.6%, Pdf Solutions (PDFS) +55.9%. Over five years, Monolithic Power Systems (MPWR) compounded fastest (Monolithic Power Systems (MPWR) +17.9%/yr, Pdf Solutions (PDFS) +14.1%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Monolithic Power Systems (MPWR) has been the steadiest (Arm Holdings (ARM) 78.9%, Monolithic Power Systems (MPWR) 54.9%, Pdf Solutions (PDFS) 69.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ARM, MPWR and PDFS?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Monolithic Power Systems (MPWR) leads on 5. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.