MKSI vs RPM vs ONTO Stock Comparison

Mks, Rpm International and Onto Innovation Prices as of Nov 5, 2026 Peers: Industry group
MKSI Mks Inc
$176.63 -37.2% 1M +26.2% 1Y
Market cap
$13.01B
P/E
21.6x
Revenue (TTM)
$4.77B
Div. yield
0.01%
Semiconductor Equipment Technology
5 wins
RPM Rpm International Inc/De/
$105.33 +7.1% 1M -2.1% 1Y
Market cap
$13.10B
P/E
19.0x
Revenue (TTM)
$7.97B
Div. yield
–
Paints and Coatings Basic Materials
5 wins
ONTO Onto Innovation Inc.
$155.47 -50.5% 1M +14.5% 1Y
Market cap
$8.58B
P/E
64.7x
Revenue (TTM)
$1.12B
Div. yield
–
Semiconductor Equipment Technology
1 win

Head to Head

11 decided of 12

Rpm International leads on 5 of the 12 questions below (Rpm International 5, Mks 5, Onto Innovation 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionMKSIRPMONTOLeader
Larger companyMarket capitalisation $13.01B $13.10B $8.58B RPM
Cheaper on earningsLower P/E, profitable companies only 21.6x 19.0x 64.7x RPM
Cheaper on forward earningsLower price / next fiscal year consensus EPS 13.1x 18.9x 18.5x MKSI
Faster revenue growthRevenue growth, trailing twelve months +24.6% +6.0% +8.1% MKSI
More profitableNet margin, trailing twelve months 12.6% 8.7% 11.8% MKSI
Better return on capitalReturn on invested capital 10.8% 12.5% — RPM
Less leveragedLower net debt / EBITDA 2.5x 1.8x — RPM
Higher dividend yieldTrailing dividend yield 0.01% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +26.2% -2.1% +14.5% MKSI
Better 5-year returnAnnualised price return, 5 years +2.0%/yr +3.2%/yr +10.9%/yr ONTO
Less volatileAnnualised volatility, 1 year 63.0% 30.7% 75.6% RPM
Higher overall scoreMean of the five percentile scores vs peers 61/100 60/100 59/100 MKSI

Percentile Scorecard

MKSIRPMONTO

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

AxisMKSIRPMONTO
Valuation 82 #18 of 94 49 #49 of 95 62 #36 of 94
Growth 84 #16 of 92 59 #39 of 93 26 #68 of 92
Profitability 63 #34 of 90 85 #14 of 89 54 #42 of 90
Financial Health 1 #100 of 101 54 #45 of 96 58 #43 of 101
Shareholder Returns 74 #22 of 81 54 #35 of 75 96 #4 of 81
Overall 61 60 59
  • MKSI ranked among 103 companies in Semiconductors
  • RPM ranked among 99 companies in Chemicals
  • ONTO ranked among 103 companies in Semiconductors

Price Performance

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

Returns

PeriodMKSIRPMONTOSPY
1 month -37.2%+7.1%-50.5% -5.9%
3 months -39.4%-8.9%-42.0% -4.6%
6 months -41.3%+3.9%-43.3% +0.2%
Year to date +10.5%+1.3%-1.5% +7.5%
1 year +26.2%-2.1%+14.5% +8.2%
3 years +160.2%+9.5%+30.2% +68.3%
3 years, per year +37.6%+3.1%+9.2% +19.0%
5 years +10.2%+17.3%+67.5% +56.5%
5 years, per year +2.0%+3.2%+10.9% +9.4%
10 years +263.4%+123.5%— +251.5%
10 years, per year +13.8%+8.4%— +13.4%

Risk

MeasureMKSIRPMONTOSPY
Volatility, 1Y 63.0%30.7%75.6% 13.6%
Downside volatility, 1Y 67.5%26.8%79.7% 14.2%
Beta vs S&P 500, 1Y 2.680.923.22 1.00
Return / volatility, 1Y 0.42-0.070.19 0.60
Max drawdown, 5Y -67.5%-33.5%-62.8% -25.4%
From 52-week high -60.3%-12.3%-58.9% -5.9%
52-week high $444.80$120.17$378.45 $779.14
52-week low $138.49$93.23$124.09 $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.

MultipleMKSIRPMONTO
P/E now vs peer median 19.9xmedian 35.6x 19.3xmedian 21.2x 57.9xmedian 35.6x
P/S now vs peer median 2.5xmedian 5.8x 1.7xmedian 1.3x 6.8xmedian 5.8x
EV/EBITDA now vs peer median 12.2xmedian 21.9x 13.2xmedian 11.7x 26.3xmedian 21.9x
P/FCF now vs peer median 21.6xmedian 30.7x 19.0xmedian 17.0x 30.2xmedian 30.7x
P/B now vs peer median 3.6xmedian 3.5x 3.9xmedian 1.5x 4.0xmedian 3.5x
PEG now vs peer median 0.61median 1.25 1.76median 1.76 -6.58median 1.25

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 monthsMKSIRPMONTO
Revenue $4.77B $7.97B $1.12B
Gross profit $2.26B $3.28B $564.06M
Operating income $869.00M $961.65M $134.61M
Net income $602.00M $691.27M $132.61M
Free cash flow $552.00M $705.58M $252.47M
R&D $314.00M – $142.63M
EPS (diluted) $8.30 $5.42 $2.67
Cash & equivalents $676.00M $312.84M $1.25B
Total debt $3.78B $2.41B –
Shares (diluted) 72.50M 127.24M 49.68M
Enterprise value $10.48B $11.86B $4.42B

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
MetricMKSIRPMONTO
P/E 19.9x 19.3x 57.9x
P/FCF 21.6x 19.0x 30.2x
P/Operating cash flow 16.4x 14.5x 28.6x
P/S 2.5x 1.7x 6.8x
P/B 3.6x 3.9x 4.0x
P/Tangible book 9.1x 5.0x 4.6x
EV/EBITDA 12.2x 13.2x 26.3x
EV/EBIT 17.3x 16.1x 42.6x
EV/Revenue 3.2x 1.9x 5.1x
EV/FCF 27.3x 22.0x 22.7x
EV/Operating cash flow 20.6x 16.8x 21.6x
PEG (3Y EPS CAGR) 0.61 1.76 -6.58

Growth

14 metrics
MetricMKSIRPMONTO
Revenue growth (1Y) 24.6% 6.0% 8.1%
Revenue CAGR (3Y) 7.7% 2.8% 7.7%
Gross profit growth (1Y) 25.3% 5.5% 5.6%
Gross profit CAGR (3Y) 9.5% 5.0% 5.4%
Operating income growth (1Y) 67.1% 9.0% -29.5%
Operating income CAGR (3Y) 37.8% 5.9% -8.3%
Net income growth (1Y) 115.8% 0.2% -33.7%
Net income CAGR (3Y) 33.0% 10.5% -8.6%
EPS growth (1Y) 101.2% 0.8% -34.5%
EPS CAGR (3Y) 32.5% 11.0% -8.8%
Operating cash flow growth (1Y) 7.5% 22.1% -2.5%
Operating cash flow CAGR (3Y) 31.4% 0.4% 17.7%
Free cash flow growth (1Y) 4.2% 36.7% 5.9%
Free cash flow CAGR (3Y) 37.1% 2.0% 22.0%

Profitability

14 metrics
MetricMKSIRPMONTO
Gross margin 47.3% 41.2% 50.4%
EBITDA margin 25.8% 14.8% 19.5%
Operating margin 18.2% 12.1% 12.0%
Pretax margin 14.5% 11.4% 14.1%
Net margin 12.6% 8.7% 11.8%
FCF margin 11.6% 8.9% 22.5%
Operating cash flow margin 15.3% 11.6% 23.8%
Return on equity 19.2% 20.4% 6.5%
Return on assets 6.6% 8.3% 4.4%
Return on invested capital 10.8% 12.5% –
Return on capital employed 13.4% 15.1% 4.8%
Asset turnover 0.5x 1.0x 0.4x
Cash conversion (OCF / net income) 1.2x 1.3x 2.0x
Stock comp / revenue 1.2% 0.5% 2.8%

Financial Health

11 metrics
MetricMKSIRPMONTO
Debt / assets 40.9% 29.2% –
Debt / equity 1.1x 0.7x –
Net debt / EBITDA 2.5x 1.8x –
Debt / FCF 6.8x 3.4x –
Liabilities / assets 64.4% 57.7% 48.0%
Equity / assets 35.6% 42.3% 52.0%
Interest coverage 5.1x 8.9x –
Current ratio 1.2x 1.8x 9.7x
Quick ratio 0.6x 1.0x 8.2x
Cash ratio 0.3x 0.2x 6.9x
Altman Z-score 2.27 3.90 4.08

Shareholder Returns

7 metrics
MetricMKSIRPMONTO
Dividend yield 0.5% 2.1% –
Net buyback yield – 0.6% 2.5%
Shareholder yield 0.5% 2.7% 2.5%
Payout ratio (earnings) 11.0% – –
Payout ratio (FCF) 12.0% – –
Dividend growth (1Y) 11.9% – –
Dividend CAGR (3Y) 3.8% – –

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.

ConsensusMKSIRPMONTO
Forward P/E 13.1xFY2026 18.9xFY2026 18.5xFY2026
EPS, next fiscal year $13.48FY2026 $5.58FY2026 $8.42FY2026
EPS growth, next FY +71.1%FY2026 +0.9%FY2026 +70.4%FY2026
EPS growth, the year after +34.9% +12.5% +43.5%
Revenue, next fiscal year $5.43BFY2026 $7.69BFY2026 $1.37BFY2026
Revenue growth, next FY +38.1%FY2026 -2.1%FY2026 +35.5%FY2026
Revenue growth, the year after +8.0% +8.0% +41.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersMKSIRPMONTO
Held by institutions 100.0% 86.1% 98.3%
Institutions holding 778 797 690
Change in shares held, QoQ +2.8% +3.8% +2.3%
Institutions buying 455 386 376
Institutions selling 253 245 232
Buyers to sellers 1.80 1.58 1.62

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.

MKSIRPMONTO
MKSI 1.00 0.15 0.86
RPM 0.15 1.00 0.14
ONTO 0.86 0.14 1.00

Add a Peer

Largest companies in the same industry

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Frequently Asked Questions

Which is bigger, MKSI, RPM and ONTO?

Rpm International (RPM) is the largest by market capitalisation: Mks (MKSI) $13.01B, Rpm International (RPM) $13.10B, Onto Innovation (ONTO) $8.58B.

Which stock is cheaper, MKSI, RPM and ONTO?

Rpm International (RPM) trades on the lowest price-to-earnings ratio (Mks (MKSI) 21.6x, Rpm International (RPM) 19.0x, Onto Innovation (ONTO) 64.7x). On next year's consensus earnings, Mks (MKSI) is cheapest (Mks (MKSI) 13.1x, Rpm International (RPM) 18.9x, Onto Innovation (ONTO) 18.5x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Mks (MKSI) grew revenue fastest over the trailing twelve months: Mks (MKSI) +24.6%, Rpm International (RPM) +6.0%, Onto Innovation (ONTO) +8.1%.

Which company is more profitable?

Mks (MKSI) has the highest net margin (Mks (MKSI) 12.6%, Rpm International (RPM) 8.7%, Onto Innovation (ONTO) 11.8%). On return on invested capital, Rpm International (RPM) leads (Mks (MKSI) 10.8%, Rpm International (RPM) 12.5%).

Which stock has performed better?

Over the past year Mks (MKSI) returned the most: Mks (MKSI) +26.2%, Rpm International (RPM) -2.1%, Onto Innovation (ONTO) +14.5%. Over five years, Onto Innovation (ONTO) compounded fastest (Mks (MKSI) +2.0%/yr, Rpm International (RPM) +3.2%/yr, Onto Innovation (ONTO) +10.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Mks (MKSI) 0.01%, Rpm International (RPM) 0.00%, Onto Innovation (ONTO) 0.00%. Rpm International (RPM) and Onto Innovation (ONTO) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Rpm International (RPM) has been the steadiest (Mks (MKSI) 63.0%, Rpm International (RPM) 30.7%, Onto Innovation (ONTO) 75.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, MKSI, RPM and ONTO?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Rpm International (RPM) 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.