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

Enact Holdings, Inc. is the larger business by last-quarter revenue ($312.7M vs $218.2M, roughly 1.4× ONTO INNOVATION INC.). On growth, Enact Holdings, Inc. posted the faster year-over-year revenue change (3.6% vs -13.5%). Over the past eight quarters, Enact Holdings, Inc.'s revenue compounded faster (3.6% CAGR vs 2.6%).

Enact Holdings, Inc. is a leading U.S.-based private mortgage insurance provider. It delivers risk mitigation solutions to residential mortgage lenders, banks, and credit unions, enabling borrowers with smaller down payments to access affordable home financing, and supports sustainable homeownership for diverse consumer groups across the United States.

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.

ACT vs ONTO — Head-to-Head

Bigger by revenue
ACT
ACT
1.4× larger
ACT
$312.7M
$218.2M
ONTO
Growing faster (revenue YoY)
ACT
ACT
+17.1% gap
ACT
3.6%
-13.5%
ONTO
Faster 2-yr revenue CAGR
ACT
ACT
Annualised
ACT
3.6%
2.6%
ONTO

Income Statement — Q4 FY2025 vs Q3 FY2025

Metric
ACT
ACT
ONTO
ONTO
Revenue
$312.7M
$218.2M
Net Profit
$28.2M
Gross Margin
50.7%
Operating Margin
71.3%
10.9%
Net Margin
12.9%
Revenue YoY
3.6%
-13.5%
Net Profit YoY
-46.8%
EPS (diluted)
$1.23
$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
ACT
ACT
ONTO
ONTO
Q4 25
$312.7M
Q3 25
$311.5M
$218.2M
Q2 25
$304.9M
$253.6M
Q1 25
$306.8M
$266.6M
Q4 24
$301.8M
$263.9M
Q3 24
$309.6M
$252.2M
Q2 24
$298.8M
$242.3M
Q1 24
$291.6M
$228.8M
Net Profit
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
$28.2M
Q2 25
$33.9M
Q1 25
$64.1M
Q4 24
$48.8M
Q3 24
$53.1M
Q2 24
$52.9M
Q1 24
$46.9M
Gross Margin
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
50.7%
Q2 25
48.2%
Q1 25
53.7%
Q4 24
50.2%
Q3 24
54.1%
Q2 24
52.9%
Q1 24
51.7%
Operating Margin
ACT
ACT
ONTO
ONTO
Q4 25
71.3%
Q3 25
67.4%
10.9%
Q2 25
70.4%
12.7%
Q1 25
68.9%
23.7%
Q4 24
68.9%
16.1%
Q3 24
74.1%
21.0%
Q2 24
78.6%
20.2%
Q1 24
70.6%
18.7%
Net Margin
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
12.9%
Q2 25
13.4%
Q1 25
24.0%
Q4 24
18.5%
Q3 24
21.0%
Q2 24
21.9%
Q1 24
20.5%
EPS (diluted)
ACT
ACT
ONTO
ONTO
Q4 25
$1.23
Q3 25
$1.10
$0.57
Q2 25
$1.11
$0.69
Q1 25
$1.08
$1.30
Q4 24
$1.05
$0.98
Q3 24
$1.15
$1.07
Q2 24
$1.16
$1.07
Q1 24
$1.01
$0.94

Balance Sheet & Financial Strength

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

Metric
ACT
ACT
ONTO
ONTO
Cash + ST InvestmentsLiquidity on hand
$582.5M
$603.1M
Total DebtLower is stronger
$744.5M
Stockholders' EquityBook value
$5.4B
$2.0B
Total Assets
$6.9B
$2.2B
Debt / EquityLower = less leverage
0.14×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACT
ACT
ONTO
ONTO
Q4 25
$582.5M
Q3 25
$545.6M
$603.1M
Q2 25
$616.0M
$217.5M
Q1 25
$639.0M
$203.7M
Q4 24
$602.8M
$212.9M
Q3 24
$674.9M
$188.7M
Q2 24
$711.3M
$172.6M
Q1 24
$624.3M
$190.9M
Total Debt
ACT
ACT
ONTO
ONTO
Q4 25
$744.5M
Q3 25
$744.1M
Q2 25
$743.8M
Q1 25
$743.4M
Q4 24
$743.0M
Q3 24
$742.7M
Q2 24
$742.4M
Q1 24
$746.1M
Stockholders' Equity
ACT
ACT
ONTO
ONTO
Q4 25
$5.4B
Q3 25
$5.3B
$2.0B
Q2 25
$5.2B
$2.0B
Q1 25
$5.1B
$1.9B
Q4 24
$5.0B
$1.9B
Q3 24
$5.0B
$1.9B
Q2 24
$4.8B
$1.8B
Q1 24
$4.7B
$1.8B
Total Assets
ACT
ACT
ONTO
ONTO
Q4 25
$6.9B
Q3 25
$6.9B
$2.2B
Q2 25
$6.8B
$2.1B
Q1 25
$6.7B
$2.1B
Q4 24
$6.5B
$2.1B
Q3 24
$6.6B
$2.1B
Q2 24
$6.3B
$2.0B
Q1 24
$6.3B
$2.0B
Debt / Equity
ACT
ACT
ONTO
ONTO
Q4 25
0.14×
Q3 25
0.14×
Q2 25
0.14×
Q1 25
0.15×
Q4 24
0.15×
Q3 24
0.15×
Q2 24
0.15×
Q1 24
0.16×

Cash Flow & Capital Efficiency

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

Metric
ACT
ACT
ONTO
ONTO
Operating Cash FlowLast quarter
$724.5M
$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
ACT
ACT
ONTO
ONTO
Q4 25
$724.5M
Q3 25
$192.0M
$83.4M
Q2 25
$119.5M
$57.9M
Q1 25
$226.7M
$92.0M
Q4 24
$686.3M
$56.0M
Q3 24
$188.1M
$67.2M
Q2 24
$144.7M
$65.3M
Q1 24
$187.3M
$57.1M
Free Cash Flow
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
$82.0M
Q2 25
$44.2M
Q1 25
$83.7M
Q4 24
$51.4M
Q3 24
$59.2M
Q2 24
$53.0M
Q1 24
$50.2M
FCF Margin
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
37.6%
Q2 25
17.4%
Q1 25
31.4%
Q4 24
19.5%
Q3 24
23.5%
Q2 24
21.9%
Q1 24
21.9%
Capex Intensity
ACT
ACT
ONTO
ONTO
Q4 25
Q3 25
0.6%
Q2 25
5.4%
Q1 25
3.1%
Q4 24
1.8%
Q3 24
3.2%
Q2 24
5.1%
Q1 24
3.0%
Cash Conversion
ACT
ACT
ONTO
ONTO
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×
Q1 24
1.22×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ACT
ACT

Segment breakdown not available.

ONTO
ONTO

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

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