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Side-by-side financial comparison of GLAUKOS Corp (GKOS) and ONTO INNOVATION INC. (ONTO). Click either name above to swap in a different company.

ONTO INNOVATION INC. is the larger business by last-quarter revenue ($218.2M vs $150.6M, roughly 1.4× GLAUKOS Corp). ONTO INNOVATION INC. runs the higher net margin — 12.9% vs 6.2%, a 6.7% gap on every dollar of revenue. On growth, GLAUKOS Corp posted the faster year-over-year revenue change (41.2% vs -13.5%). Over the past eight quarters, GLAUKOS Corp's revenue compounded faster (25.4% CAGR vs 2.6%).

Glaukos Corp is a medical technology company focused on ophthalmology, developing and commercializing minimally invasive surgical devices, prescription pharmaceuticals and consumer products for glaucoma, corneal diseases and other eye disorders. It operates primarily across North America, Europe and Asia Pacific, serving hospitals, ophthalmology clinics and patients worldwide.

Onto Innovation Inc. is an American semiconductor company formed in 2019 from the merger of Rudolph Technologies, Inc. and Nanometrics Incorporated. It is a provider of process and process control equipment and software for microelectronic manufacturing industries.

GKOS vs ONTO — Head-to-Head

Bigger by revenue
ONTO
ONTO
1.4× larger
ONTO
$218.2M
$150.6M
GKOS
Growing faster (revenue YoY)
GKOS
GKOS
+54.7% gap
GKOS
41.2%
-13.5%
ONTO
Higher net margin
ONTO
ONTO
6.7% more per $
ONTO
12.9%
6.2%
GKOS
Faster 2-yr revenue CAGR
GKOS
GKOS
Annualised
GKOS
25.4%
2.6%
ONTO

Income Statement — Q1 FY2026 vs Q3 FY2025

Metric
GKOS
GKOS
ONTO
ONTO
Revenue
$150.6M
$218.2M
Net Profit
$9.4M
$28.2M
Gross Margin
77.9%
50.7%
Operating Margin
9.0%
10.9%
Net Margin
6.2%
12.9%
Revenue YoY
41.2%
-13.5%
Net Profit YoY
-46.8%
EPS (diluted)
$0.57

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
GKOS
GKOS
ONTO
ONTO
Q1 26
$150.6M
Q4 25
$143.1M
Q3 25
$133.5M
$218.2M
Q2 25
$124.1M
$253.6M
Q1 25
$106.7M
$266.6M
Q4 24
$105.5M
$263.9M
Q3 24
$96.7M
$252.2M
Q2 24
$95.7M
$242.3M
Net Profit
GKOS
GKOS
ONTO
ONTO
Q1 26
$9.4M
Q4 25
$-133.7M
Q3 25
$-16.2M
$28.2M
Q2 25
$-19.7M
$33.9M
Q1 25
$-18.1M
$64.1M
Q4 24
$-33.6M
$48.8M
Q3 24
$-21.4M
$53.1M
Q2 24
$-50.5M
$52.9M
Gross Margin
GKOS
GKOS
ONTO
ONTO
Q1 26
77.9%
Q4 25
-1.1%
Q3 25
78.4%
50.7%
Q2 25
78.3%
48.2%
Q1 25
77.2%
53.7%
Q4 24
72.9%
50.2%
Q3 24
76.6%
54.1%
Q2 24
76.4%
52.9%
Operating Margin
GKOS
GKOS
ONTO
ONTO
Q1 26
9.0%
Q4 25
-97.7%
Q3 25
-12.3%
10.9%
Q2 25
-18.3%
12.7%
Q1 25
-19.4%
23.7%
Q4 24
-27.2%
16.1%
Q3 24
-25.5%
21.0%
Q2 24
-31.3%
20.2%
Net Margin
GKOS
GKOS
ONTO
ONTO
Q1 26
6.2%
Q4 25
-93.4%
Q3 25
-12.2%
12.9%
Q2 25
-15.8%
13.4%
Q1 25
-17.0%
24.0%
Q4 24
-31.8%
18.5%
Q3 24
-22.1%
21.0%
Q2 24
-52.8%
21.9%
EPS (diluted)
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
$-2.34
Q3 25
$-0.28
$0.57
Q2 25
$-0.34
$0.69
Q1 25
$-0.32
$1.30
Q4 24
$-0.56
$0.98
Q3 24
$-0.39
$1.07
Q2 24
$-1.00
$1.07

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
GKOS
GKOS
ONTO
ONTO
Cash + ST InvestmentsLiquidity on hand
$276.7M
$603.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$670.9M
$2.0B
Total Assets
$893.3M
$2.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
GKOS
GKOS
ONTO
ONTO
Q1 26
$276.7M
Q4 25
$90.8M
Q3 25
$98.2M
$603.1M
Q2 25
$100.8M
$217.5M
Q1 25
$114.3M
$203.7M
Q4 24
$169.6M
$212.9M
Q3 24
$100.1M
$188.7M
Q2 24
$68.1M
$172.6M
Stockholders' Equity
GKOS
GKOS
ONTO
ONTO
Q1 26
$670.9M
Q4 25
$656.2M
Q3 25
$769.5M
$2.0B
Q2 25
$765.1M
$2.0B
Q1 25
$764.0M
$1.9B
Q4 24
$766.9M
$1.9B
Q3 24
$668.5M
$1.9B
Q2 24
$665.2M
$1.8B
Total Assets
GKOS
GKOS
ONTO
ONTO
Q1 26
$893.3M
Q4 25
$893.5M
Q3 25
$999.4M
$2.2B
Q2 25
$987.0M
$2.1B
Q1 25
$966.2M
$2.1B
Q4 24
$974.8M
$2.1B
Q3 24
$926.5M
$2.1B
Q2 24
$919.7M
$2.0B

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
GKOS
GKOS
ONTO
ONTO
Operating Cash FlowLast quarter
$83.4M
Free Cash FlowOCF − Capex
$82.0M
FCF MarginFCF / Revenue
37.6%
Capex IntensityCapex / Revenue
0.6%
Cash ConversionOCF / Net Profit
2.95×
TTM Free Cash FlowTrailing 4 quarters
$261.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
$6.8M
Q3 25
$-10.1M
$83.4M
Q2 25
$7.0M
$57.9M
Q1 25
$-18.5M
$92.0M
Q4 24
$507.0K
$56.0M
Q3 24
$-9.6M
$67.2M
Q2 24
$-18.4M
$65.3M
Free Cash Flow
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
$3.9M
Q3 25
$-11.7M
$82.0M
Q2 25
$5.8M
$44.2M
Q1 25
$-20.5M
$83.7M
Q4 24
$-1.2M
$51.4M
Q3 24
$-11.0M
$59.2M
Q2 24
$-20.5M
$53.0M
FCF Margin
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
2.7%
Q3 25
-8.8%
37.6%
Q2 25
4.7%
17.4%
Q1 25
-19.2%
31.4%
Q4 24
-1.2%
19.5%
Q3 24
-11.4%
23.5%
Q2 24
-21.4%
21.9%
Capex Intensity
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
2.0%
Q3 25
1.2%
0.6%
Q2 25
0.9%
5.4%
Q1 25
1.8%
3.1%
Q4 24
1.6%
1.8%
Q3 24
1.5%
3.2%
Q2 24
2.2%
5.1%
Cash Conversion
GKOS
GKOS
ONTO
ONTO
Q1 26
Q4 25
Q3 25
2.95×
Q2 25
1.71×
Q1 25
1.44×
Q4 24
1.15×
Q3 24
1.27×
Q2 24
1.23×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

GKOS
GKOS

Segment breakdown not available.

ONTO
ONTO

Systems And Software Revenue$173.8M80%
Parts Revenue$23.9M11%
Service Revenue$20.5M9%

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