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Side-by-side financial comparison of ONTO INNOVATION INC. (ONTO) and Owlet, Inc. (OWLT). Click either name above to swap in a different company.

ONTO INNOVATION INC. is the larger business by last-quarter revenue ($218.2M vs $26.6M, roughly 8.2× Owlet, Inc.). ONTO INNOVATION INC. runs the higher net margin — 12.9% vs -34.6%, a 47.5% gap on every dollar of revenue. On growth, Owlet, Inc. posted the faster year-over-year revenue change (29.6% vs -13.5%). ONTO INNOVATION INC. produced more free cash flow last quarter ($82.0M vs $-651.0K). Over the past eight quarters, Owlet, Inc.'s revenue compounded faster (34.2% 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.

Owlet, Inc. is a pediatric health technology firm that develops smart wearable monitoring products for infants, most notably its signature smart sock that tracks real-time heart rate, oxygen levels, and sleep metrics. It serves global consumer markets across North America, Europe, and Asia-Pacific, distributing products via direct-to-consumer e-commerce and partnered retail outlets, focused on supporting parental peace of mind and infant health safety.

ONTO vs OWLT — Head-to-Head

Bigger by revenue
ONTO
ONTO
8.2× larger
ONTO
$218.2M
$26.6M
OWLT
Growing faster (revenue YoY)
OWLT
OWLT
+43.1% gap
OWLT
29.6%
-13.5%
ONTO
Higher net margin
ONTO
ONTO
47.5% more per $
ONTO
12.9%
-34.6%
OWLT
More free cash flow
ONTO
ONTO
$82.7M more FCF
ONTO
$82.0M
$-651.0K
OWLT
Faster 2-yr revenue CAGR
OWLT
OWLT
Annualised
OWLT
34.2%
2.6%
ONTO

Income Statement — Q3 2025 vs Q4 2025

Metric
ONTO
ONTO
OWLT
OWLT
Revenue
$218.2M
$26.6M
Net Profit
$28.2M
$-9.2M
Gross Margin
50.7%
47.6%
Operating Margin
10.9%
-18.4%
Net Margin
12.9%
-34.6%
Revenue YoY
-13.5%
29.6%
Net Profit YoY
-46.8%
-1.5%
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
ONTO
ONTO
OWLT
OWLT
Q4 25
$26.6M
Q3 25
$218.2M
$32.0M
Q2 25
$253.6M
$26.1M
Q1 25
$266.6M
$21.1M
Q4 24
$263.9M
$20.5M
Q3 24
$252.2M
$22.1M
Q2 24
$242.3M
$20.7M
Q1 24
$228.8M
$14.8M
Net Profit
ONTO
ONTO
OWLT
OWLT
Q4 25
$-9.2M
Q3 25
$28.2M
$4.1M
Q2 25
$33.9M
$-37.6M
Q1 25
$64.1M
$3.0M
Q4 24
$48.8M
$-9.1M
Q3 24
$53.1M
$-5.6M
Q2 24
$52.9M
$-1.1M
Q1 24
$46.9M
$3.3M
Gross Margin
ONTO
ONTO
OWLT
OWLT
Q4 25
47.6%
Q3 25
50.7%
50.6%
Q2 25
48.2%
51.3%
Q1 25
53.7%
53.7%
Q4 24
50.2%
53.5%
Q3 24
54.1%
52.2%
Q2 24
52.9%
49.5%
Q1 24
51.7%
44.4%
Operating Margin
ONTO
ONTO
OWLT
OWLT
Q4 25
-18.4%
Q3 25
10.9%
3.8%
Q2 25
12.7%
-7.4%
Q1 25
23.7%
-12.7%
Q4 24
16.1%
-36.2%
Q3 24
21.0%
-21.8%
Q2 24
20.2%
-10.8%
Q1 24
18.7%
-39.0%
Net Margin
ONTO
ONTO
OWLT
OWLT
Q4 25
-34.6%
Q3 25
12.9%
12.9%
Q2 25
13.4%
-144.4%
Q1 25
24.0%
14.3%
Q4 24
18.5%
-44.2%
Q3 24
21.0%
-25.4%
Q2 24
21.9%
-5.5%
Q1 24
20.5%
22.2%
EPS (diluted)
ONTO
ONTO
OWLT
OWLT
Q4 25
Q3 25
$0.57
$-0.06
Q2 25
$0.69
$-2.37
Q1 25
$1.30
$0.11
Q4 24
$0.98
$-0.15
Q3 24
$1.07
$-0.61
Q2 24
$1.07
$-0.30
Q1 24
$0.94
$-0.51

Balance Sheet & Financial Strength

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

Metric
ONTO
ONTO
OWLT
OWLT
Cash + ST InvestmentsLiquidity on hand
$603.1M
$35.5M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.0B
$19.0M
Total Assets
$2.2B
$85.6M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ONTO
ONTO
OWLT
OWLT
Q4 25
$35.5M
Q3 25
$603.1M
$23.8M
Q2 25
$217.5M
$21.8M
Q1 25
$203.7M
$16.3M
Q4 24
$212.9M
$20.2M
Q3 24
$188.7M
$21.6M
Q2 24
$172.6M
$15.4M
Q1 24
$190.9M
$18.4M
Total Debt
ONTO
ONTO
OWLT
OWLT
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
$2.1M
Q1 24
$4.0M
Stockholders' Equity
ONTO
ONTO
OWLT
OWLT
Q4 25
$19.0M
Q3 25
$2.0B
$-54.1M
Q2 25
$2.0B
$-59.2M
Q1 25
$1.9B
$-25.8M
Q4 24
$1.9B
$-29.8M
Q3 24
$1.9B
$-21.5M
Q2 24
$1.8B
$-33.4M
Q1 24
$1.8B
$-32.9M
Total Assets
ONTO
ONTO
OWLT
OWLT
Q4 25
$85.6M
Q3 25
$2.2B
$74.9M
Q2 25
$2.1B
$63.5M
Q1 25
$2.1B
$51.4M
Q4 24
$2.1B
$49.5M
Q3 24
$2.1B
$56.1M
Q2 24
$2.0B
$45.9M
Q1 24
$2.0B
$43.8M

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
OWLT
OWLT
Operating Cash FlowLast quarter
$83.4M
$-452.0K
Free Cash FlowOCF − Capex
$82.0M
$-651.0K
FCF MarginFCF / Revenue
37.6%
-2.5%
Capex IntensityCapex / Revenue
0.6%
0.7%
Cash ConversionOCF / Net Profit
2.95×
TTM Free Cash FlowTrailing 4 quarters
$261.3M
$-11.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ONTO
ONTO
OWLT
OWLT
Q4 25
$-452.0K
Q3 25
$83.4M
$-2.2M
Q2 25
$57.9M
$-2.2M
Q1 25
$92.0M
$-5.9M
Q4 24
$56.0M
$3.0M
Q3 24
$67.2M
$-7.5M
Q2 24
$65.3M
$-3.4M
Q1 24
$57.1M
$-3.4M
Free Cash Flow
ONTO
ONTO
OWLT
OWLT
Q4 25
$-651.0K
Q3 25
$82.0M
$-2.2M
Q2 25
$44.2M
$-2.3M
Q1 25
$83.7M
$-5.9M
Q4 24
$51.4M
$3.0M
Q3 24
$59.2M
$-7.5M
Q2 24
$53.0M
$-3.4M
Q1 24
$50.2M
FCF Margin
ONTO
ONTO
OWLT
OWLT
Q4 25
-2.5%
Q3 25
37.6%
-6.8%
Q2 25
17.4%
-8.8%
Q1 25
31.4%
-28.1%
Q4 24
19.5%
14.5%
Q3 24
23.5%
-33.9%
Q2 24
21.9%
-16.3%
Q1 24
21.9%
Capex Intensity
ONTO
ONTO
OWLT
OWLT
Q4 25
0.7%
Q3 25
0.6%
0.0%
Q2 25
5.4%
0.2%
Q1 25
3.1%
0.0%
Q4 24
1.8%
0.2%
Q3 24
3.2%
0.0%
Q2 24
5.1%
0.0%
Q1 24
3.0%
0.0%
Cash Conversion
ONTO
ONTO
OWLT
OWLT
Q4 25
Q3 25
2.95×
-0.52×
Q2 25
1.71×
Q1 25
1.44×
-1.96×
Q4 24
1.15×
Q3 24
1.27×
Q2 24
1.23×
Q1 24
1.22×
-1.03×

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%

OWLT
OWLT

US$22.7M85%
Non Us$3.2M12%
Other$651.0K2%

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