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

ONTO INNOVATION INC. is the larger business by last-quarter revenue ($218.2M vs $208.2M, roughly 1.0× SILICON LABORATORIES INC.). On growth, SILICON LABORATORIES INC. posted the faster year-over-year revenue change (25.2% vs -13.5%). ONTO INNOVATION INC. produced more free cash flow last quarter ($82.0M vs $-1.6M). Over the past eight quarters, SILICON LABORATORIES INC.'s revenue compounded faster (39.9% CAGR vs 2.6%).

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.

Silicon Laboratories, Inc., commonly referred to as Silicon Labs, is a fabless global technology company that designs and manufactures semiconductors, other silicon devices and software, which it sells to electronics design engineers and manufacturers in Internet of Things (IoT) infrastructure worldwide.

ONTO vs SLAB — Head-to-Head

Bigger by revenue
ONTO
ONTO
1.0× larger
ONTO
$218.2M
$208.2M
SLAB
Growing faster (revenue YoY)
SLAB
SLAB
+38.7% gap
SLAB
25.2%
-13.5%
ONTO
More free cash flow
ONTO
ONTO
$83.6M more FCF
ONTO
$82.0M
$-1.6M
SLAB
Faster 2-yr revenue CAGR
SLAB
SLAB
Annualised
SLAB
39.9%
2.6%
ONTO

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
ONTO
ONTO
SLAB
SLAB
Revenue
$218.2M
$208.2M
Net Profit
$28.2M
Gross Margin
50.7%
63.4%
Operating Margin
10.9%
-1.6%
Net Margin
12.9%
Revenue YoY
-13.5%
25.2%
Net Profit YoY
-46.8%
EPS (diluted)
$0.57
$-0.07

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
ONTO
ONTO
SLAB
SLAB
Q1 26
$208.2M
Q4 25
$206.0M
Q3 25
$218.2M
$192.8M
Q2 25
$253.6M
$177.7M
Q1 25
$266.6M
Q4 24
$263.9M
$166.2M
Q3 24
$252.2M
$166.4M
Q2 24
$242.3M
$145.4M
Net Profit
ONTO
ONTO
SLAB
SLAB
Q1 26
Q4 25
$-9.9M
Q3 25
$28.2M
$-21.8M
Q2 25
$33.9M
Q1 25
$64.1M
Q4 24
$48.8M
Q3 24
$53.1M
$-28.5M
Q2 24
$52.9M
$-82.2M
Gross Margin
ONTO
ONTO
SLAB
SLAB
Q1 26
63.4%
Q4 25
57.8%
Q3 25
50.7%
56.1%
Q2 25
48.2%
55.0%
Q1 25
53.7%
Q4 24
50.2%
54.3%
Q3 24
54.1%
54.3%
Q2 24
52.9%
52.7%
Operating Margin
ONTO
ONTO
SLAB
SLAB
Q1 26
-1.6%
Q4 25
-6.0%
Q3 25
10.9%
-11.9%
Q2 25
12.7%
-18.1%
Q1 25
23.7%
Q4 24
16.1%
-17.2%
Q3 24
21.0%
-17.9%
Q2 24
20.2%
-33.0%
Net Margin
ONTO
ONTO
SLAB
SLAB
Q1 26
Q4 25
-4.8%
Q3 25
12.9%
-11.3%
Q2 25
13.4%
Q1 25
24.0%
Q4 24
18.5%
Q3 24
21.0%
-17.1%
Q2 24
21.9%
-56.5%
EPS (diluted)
ONTO
ONTO
SLAB
SLAB
Q1 26
$-0.07
Q4 25
$-0.30
Q3 25
$0.57
$-0.67
Q2 25
$0.69
$-0.94
Q1 25
$1.30
Q4 24
$0.98
$-0.72
Q3 24
$1.07
$-0.88
Q2 24
$1.07
$-2.56

Balance Sheet & Financial Strength

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

Metric
ONTO
ONTO
SLAB
SLAB
Cash + ST InvestmentsLiquidity on hand
$603.1M
$443.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.0B
$1.1B
Total Assets
$2.2B
$1.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ONTO
ONTO
SLAB
SLAB
Q1 26
$443.6M
Q4 25
$439.0M
Q3 25
$603.1M
$415.5M
Q2 25
$217.5M
$424.8M
Q1 25
$203.7M
Q4 24
$212.9M
$382.2M
Q3 24
$188.7M
$369.7M
Q2 24
$172.6M
$339.2M
Stockholders' Equity
ONTO
ONTO
SLAB
SLAB
Q1 26
$1.1B
Q4 25
$1.1B
Q3 25
$2.0B
$1.1B
Q2 25
$2.0B
$1.1B
Q1 25
$1.9B
Q4 24
$1.9B
$1.1B
Q3 24
$1.9B
$1.1B
Q2 24
$1.8B
$1.1B
Total Assets
ONTO
ONTO
SLAB
SLAB
Q1 26
$1.3B
Q4 25
$1.3B
Q3 25
$2.2B
$1.2B
Q2 25
$2.1B
$1.2B
Q1 25
$2.1B
Q4 24
$2.1B
$1.2B
Q3 24
$2.1B
$1.2B
Q2 24
$2.0B
$1.2B

Cash Flow & Capital Efficiency

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

Metric
ONTO
ONTO
SLAB
SLAB
Operating Cash FlowLast quarter
$83.4M
$8.3M
Free Cash FlowOCF − Capex
$82.0M
$-1.6M
FCF MarginFCF / Revenue
37.6%
-0.8%
Capex IntensityCapex / Revenue
0.6%
4.8%
Cash ConversionOCF / Net Profit
2.95×
TTM Free Cash FlowTrailing 4 quarters
$261.3M
$65.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ONTO
ONTO
SLAB
SLAB
Q1 26
$8.3M
Q4 25
$34.3M
Q3 25
$83.4M
$4.9M
Q2 25
$57.9M
$48.1M
Q1 25
$92.0M
Q4 24
$56.0M
$10.1M
Q3 24
$67.2M
$31.6M
Q2 24
$65.3M
$16.1M
Free Cash Flow
ONTO
ONTO
SLAB
SLAB
Q1 26
$-1.6M
Q4 25
$27.9M
Q3 25
$82.0M
$-3.8M
Q2 25
$44.2M
$43.3M
Q1 25
$83.7M
Q4 24
$51.4M
$6.2M
Q3 24
$59.2M
$29.4M
Q2 24
$53.0M
$12.6M
FCF Margin
ONTO
ONTO
SLAB
SLAB
Q1 26
-0.8%
Q4 25
13.6%
Q3 25
37.6%
-2.0%
Q2 25
17.4%
24.4%
Q1 25
31.4%
Q4 24
19.5%
3.7%
Q3 24
23.5%
17.7%
Q2 24
21.9%
8.7%
Capex Intensity
ONTO
ONTO
SLAB
SLAB
Q1 26
4.8%
Q4 25
3.1%
Q3 25
0.6%
4.5%
Q2 25
5.4%
2.7%
Q1 25
3.1%
Q4 24
1.8%
2.4%
Q3 24
3.2%
1.3%
Q2 24
5.1%
2.4%
Cash Conversion
ONTO
ONTO
SLAB
SLAB
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

ONTO
ONTO

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

SLAB
SLAB

Sales Channel Through Intermediary$157.5M76%
Sales Channel Directly To Consumer$50.7M24%

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