MKSI vs ONTO Stock Comparison

Mks and Onto Innovation Prices as of Oct 26, 2026 Peers: Industry group
MKSI Mks Inc
$202.28 -22.4% 1M +41.5% 1Y
Market cap
$14.34B
P/E
32.6x
Revenue (TTM)
$4.35B
Div. yield
0.00%
Semiconductor Equipment Technology
5 wins
ONTO Onto Innovation Inc.
$203.16 -29.4% 1M +50.8% 1Y
Market cap
$10.59B
P/E
79.9x
Revenue (TTM)
$1.12B
Div. yield
–
Semiconductor Equipment Technology
4 wins

Head to Head

9 decided of 12

Mks leads on 5 of the 12 questions below (Mks 5, Onto Innovation 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionMKSIONTOLeader
Larger companyMarket capitalisation $14.34B $10.59B MKSI
Cheaper on earningsLower P/E, profitable companies only 32.6x 79.9x MKSI
Cheaper on forward earningsLower price / next fiscal year consensus EPS 15.0x 24.1x MKSI
Faster revenue growthRevenue growth, trailing twelve months +16.3% +8.1% MKSI
More profitableNet margin, trailing twelve months 10.1% 11.8% ONTO
Better return on capitalReturn on invested capital 8.9% — –
Less leveragedLower net debt / EBITDA 3.2x — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +41.5% +50.8% ONTO
Better 5-year returnAnnualised price return, 5 years +7.2%/yr +22.5%/yr ONTO
Less volatileAnnualised volatility, 1 year 61.8% 72.2% MKSI
Higher overall scoreMean of the five percentile scores vs peers 55/100 60/100 ONTO

Percentile Scorecard

MKSIONTO

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

AxisMKSIONTO
Valuation 77 #23 of 95 60 #39 of 95
Growth 72 #27 of 93 33 #63 of 93
Profitability 63 #34 of 91 58 #39 of 91
Financial Health 1 #100 of 101 58 #43 of 101
Shareholder Returns 62 #29 of 75 93 #6 of 75
Overall 55 60
  • MKSI ranked among 104 companies in Semiconductors
  • ONTO ranked among 104 companies in Semiconductors

Price Performance

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

Returns

PeriodMKSIONTOSPY
1 month -22.4%-29.4% -0.8%
3 months -35.9%-22.5% +3.5%
6 months -27.3%-31.9% +7.0%
Year to date +26.6%+28.7% +12.2%
1 year +41.5%+50.8% +13.0%
3 years +201.1%+76.8% +86.3%
3 years, per year +44.4%+20.9% +23.1%
5 years +41.6%+175.1% +68.6%
5 years, per year +7.2%+22.5% +11.0%
10 years +314.1%— +258.0%
10 years, per year +15.3%— +13.6%

Risk

MeasureMKSIONTOSPY
Volatility, 1Y 61.8%72.2% 12.7%
Downside volatility, 1Y 66.0%73.0% 12.7%
Beta vs S&P 500, 1Y 2.813.16 1.00
Return / volatility, 1Y 0.670.70 1.02
Max drawdown, 5Y -67.5%-62.8% -25.4%
From 52-week high -54.5%-46.3% -1.8%
52-week high $444.80$378.45 $779.14
52-week low $137.20$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.

MultipleMKSIONTO
P/E now vs peer median 31.1xmedian 42.1x 75.7xmedian 42.1x
P/S now vs peer median 3.1xmedian 7.1x 8.9xmedian 7.1x
EV/EBITDA now vs peer median 16.3xmedian 27.5x 37.0xmedian 27.5x
P/FCF now vs peer median 30.1xmedian 37.2x 39.5xmedian 37.2x
P/B now vs peer median 4.6xmedian 4.2x 5.2xmedian 4.2x
PEG now vs peer median 1.01median 2.23 -8.60median 2.23

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 monthsMKSIONTO
Revenue $4.35B $1.12B
Gross profit $2.04B $564.06M
Operating income $681.00M $134.61M
Net income $439.00M $132.61M
Free cash flow $455.00M $252.47M
R&D $310.00M $142.63M
EPS (diluted) $6.05 $2.67
Cash & equivalents $611.00M $1.25B
Total debt $3.94B –
Shares (diluted) 72.70M 49.68M
Enterprise value $11.79B $6.43B

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
MetricMKSIONTO
P/E 31.1x 75.7x
P/FCF 30.1x 39.5x
P/Operating cash flow 21.5x 37.4x
P/S 3.1x 8.9x
P/B 4.6x 5.2x
P/Tangible book 14.1x 6.0x
EV/EBITDA 16.3x 37.0x
EV/EBIT 25.0x 60.0x
EV/Revenue 3.9x 7.2x
EV/FCF 37.4x 32.0x
EV/Operating cash flow 26.8x 30.3x
PEG (3Y EPS CAGR) 1.01 -8.60

Growth

14 metrics
MetricMKSIONTO
Revenue growth (1Y) 16.3% 8.1%
Revenue CAGR (3Y) 4.2% 7.7%
Gross profit growth (1Y) 15.4% 5.6%
Gross profit CAGR (3Y) 6.7% 5.4%
Operating income growth (1Y) 33.5% -29.5%
Operating income CAGR (3Y) 35.4% -8.3%
Net income growth (1Y) 64.4% -33.7%
Net income CAGR (3Y) 31.0% -8.6%
EPS growth (1Y) 52.8% -34.5%
EPS CAGR (3Y) 30.7% -8.8%
Operating cash flow growth (1Y) -1.6% -2.5%
Operating cash flow CAGR (3Y) 20.7% 17.7%
Free cash flow growth (1Y) -13.3% 5.9%
Free cash flow CAGR (3Y) 22.9% 22.0%

Profitability

14 metrics
MetricMKSIONTO
Gross margin 47.0% 50.4%
EBITDA margin 24.0% 19.5%
Operating margin 15.7% 12.0%
Pretax margin 11.2% 14.1%
Net margin 10.1% 11.8%
FCF margin 10.5% 22.5%
Operating cash flow margin 14.6% 23.8%
Return on equity 15.2% 6.5%
Return on assets 5.0% 4.4%
Return on invested capital 8.9% –
Return on capital employed 10.6% 4.8%
Asset turnover 0.5x 0.4x
Cash conversion (OCF / net income) 1.4x 2.0x
Stock comp / revenue 1.3% 2.8%

Financial Health

11 metrics
MetricMKSIONTO
Debt / assets 44.1% –
Debt / equity 1.3x –
Net debt / EBITDA 3.2x –
Debt / FCF 8.7x –
Liabilities / assets 66.6% 48.0%
Equity / assets 33.4% 52.0%
Interest coverage 3.7x –
Current ratio 1.1x 9.7x
Quick ratio 0.6x 8.2x
Cash ratio 0.3x 6.9x
Altman Z-score 2.31 4.87

Shareholder Returns

7 metrics
MetricMKSIONTO
Dividend yield 0.5% –
Net buyback yield – 1.9%
Shareholder yield 0.5% 1.9%
Payout ratio (earnings) 14.4% –
Payout ratio (FCF) 13.8% –
Dividend growth (1Y) 6.8% –
Dividend CAGR (3Y) 3.4% –

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.

ConsensusMKSIONTO
Forward P/E 15.0xFY2026 24.1xFY2026
EPS, next fiscal year $13.48FY2026 $8.42FY2026
EPS growth, next FY +71.1%FY2026 +70.4%FY2026
EPS growth, the year after +34.9% +43.5%
Revenue, next fiscal year $5.43BFY2026 $1.37BFY2026
Revenue growth, next FY +38.1%FY2026 +35.5%FY2026
Revenue growth, the year after +8.0% +41.1%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersMKSIONTO
Held by institutions 100.0% 98.3%
Institutions holding 775 688
Change in shares held, QoQ +2.8% +2.3%
Institutions buying 455 376
Institutions selling 252 232
Buyers to sellers 1.81 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.

MKSIONTO
MKSI 1.00 0.83
ONTO 0.83 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, MKSI and ONTO?

Mks (MKSI) is the largest by market capitalisation: Mks (MKSI) $14.34B, Onto Innovation (ONTO) $10.59B.

Which stock is cheaper, MKSI and ONTO?

Mks (MKSI) trades on the lowest price-to-earnings ratio (Mks (MKSI) 32.6x, Onto Innovation (ONTO) 79.9x). On next year's consensus earnings, Mks (MKSI) is cheapest (Mks (MKSI) 15.0x, Onto Innovation (ONTO) 24.1x). 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) +16.3%, Onto Innovation (ONTO) +8.1%.

Which company is more profitable?

Onto Innovation (ONTO) has the highest net margin (Mks (MKSI) 10.1%, Onto Innovation (ONTO) 11.8%).

Which stock has performed better?

Over the past year Onto Innovation (ONTO) returned the most: Mks (MKSI) +41.5%, Onto Innovation (ONTO) +50.8%. Over five years, Onto Innovation (ONTO) compounded fastest (Mks (MKSI) +7.2%/yr, Onto Innovation (ONTO) +22.5%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

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

Which stock is riskier?

By one-year price volatility, Mks (MKSI) has been the steadiest (Mks (MKSI) 61.8%, Onto Innovation (ONTO) 72.2%). Volatility measures how widely the price swings, not the risk of the business.

Do MKSI and ONTO move together?

Their daily returns over the past year have a correlation of 0.83, a strong positive relationship. Holding both adds little diversification.

Which is the better stock, MKSI 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, Mks (MKSI) 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.