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Side-by-side financial comparison of ONTO INNOVATION INC. (ONTO) and WILLIS LEASE FINANCE CORP (WLFC). Click either name above to swap in a different company.

ONTO INNOVATION INC. is the larger business by last-quarter revenue ($218.2M vs $193.6M, roughly 1.1× WILLIS LEASE FINANCE CORP). On growth, WILLIS LEASE FINANCE CORP posted the faster year-over-year revenue change (26.7% vs -13.5%). ONTO INNOVATION INC. produced more free cash flow last quarter ($82.0M vs $66.2M). Over the past eight quarters, WILLIS LEASE FINANCE CORP's revenue compounded faster (27.5% 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.

Willis Lease Finance Corp is a leading global independent provider of commercial aviation asset solutions. It primarily leases and sells commercial aircraft engines, auxiliary power units and other aviation spare parts, serving airline operators, MRO providers and other aviation industry participants across major global markets.

ONTO vs WLFC — Head-to-Head

Bigger by revenue
ONTO
ONTO
1.1× larger
ONTO
$218.2M
$193.6M
WLFC
Growing faster (revenue YoY)
WLFC
WLFC
+40.2% gap
WLFC
26.7%
-13.5%
ONTO
More free cash flow
ONTO
ONTO
$15.8M more FCF
ONTO
$82.0M
$66.2M
WLFC
Faster 2-yr revenue CAGR
WLFC
WLFC
Annualised
WLFC
27.5%
2.6%
ONTO

Income Statement — Q3 FY2025 vs Q4 FY2025

Metric
ONTO
ONTO
WLFC
WLFC
Revenue
$218.2M
$193.6M
Net Profit
$28.2M
Gross Margin
50.7%
Operating Margin
10.9%
7.3%
Net Margin
12.9%
Revenue YoY
-13.5%
26.7%
Net Profit YoY
-46.8%
EPS (diluted)
$0.57
$1.50

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
WLFC
WLFC
Q4 25
$193.6M
Q3 25
$218.2M
$183.4M
Q2 25
$253.6M
$195.5M
Q1 25
$266.6M
$157.7M
Q4 24
$263.9M
$152.8M
Q3 24
$252.2M
$146.2M
Q2 24
$242.3M
$151.1M
Q1 24
$228.8M
$119.1M
Net Profit
ONTO
ONTO
WLFC
WLFC
Q4 25
Q3 25
$28.2M
$24.3M
Q2 25
$33.9M
$60.4M
Q1 25
$64.1M
$16.9M
Q4 24
$48.8M
Q3 24
$53.1M
$24.1M
Q2 24
$52.9M
$42.6M
Q1 24
$46.9M
$20.9M
Gross Margin
ONTO
ONTO
WLFC
WLFC
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
ONTO
ONTO
WLFC
WLFC
Q4 25
7.3%
Q3 25
10.9%
20.7%
Q2 25
12.7%
14.5%
Q1 25
23.7%
15.2%
Q4 24
16.1%
19.2%
Q3 24
21.0%
23.0%
Q2 24
20.2%
35.8%
Q1 24
18.7%
22.9%
Net Margin
ONTO
ONTO
WLFC
WLFC
Q4 25
Q3 25
12.9%
13.3%
Q2 25
13.4%
30.9%
Q1 25
24.0%
10.7%
Q4 24
18.5%
Q3 24
21.0%
16.5%
Q2 24
21.9%
28.2%
Q1 24
20.5%
17.5%
EPS (diluted)
ONTO
ONTO
WLFC
WLFC
Q4 25
$1.50
Q3 25
$0.57
$3.25
Q2 25
$0.69
$8.43
Q1 25
$1.30
$2.21
Q4 24
$0.98
$2.76
Q3 24
$1.07
$3.37
Q2 24
$1.07
$6.21
Q1 24
$0.94
$3.00

Balance Sheet & Financial Strength

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

Metric
ONTO
ONTO
WLFC
WLFC
Cash + ST InvestmentsLiquidity on hand
$603.1M
$16.4M
Total DebtLower is stronger
$2.7B
Stockholders' EquityBook value
$2.0B
$662.1M
Total Assets
$2.2B
$3.9B
Debt / EquityLower = less leverage
4.08×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ONTO
ONTO
WLFC
WLFC
Q4 25
$16.4M
Q3 25
$603.1M
$12.9M
Q2 25
$217.5M
$37.3M
Q1 25
$203.7M
$32.4M
Q4 24
$212.9M
$9.1M
Q3 24
$188.7M
$5.8M
Q2 24
$172.6M
$5.0M
Q1 24
$190.9M
$7.6M
Total Debt
ONTO
ONTO
WLFC
WLFC
Q4 25
$2.7B
Q3 25
$2.2B
Q2 25
$2.8B
Q1 25
$2.2B
Q4 24
$2.3B
Q3 24
$2.0B
Q2 24
$1.9B
Q1 24
$1.7B
Stockholders' Equity
ONTO
ONTO
WLFC
WLFC
Q4 25
$662.1M
Q3 25
$2.0B
$650.2M
Q2 25
$2.0B
$617.9M
Q1 25
$1.9B
$565.5M
Q4 24
$1.9B
$549.3M
Q3 24
$1.9B
$517.8M
Q2 24
$1.8B
$492.4M
Q1 24
$1.8B
$461.8M
Total Assets
ONTO
ONTO
WLFC
WLFC
Q4 25
$3.9B
Q3 25
$2.2B
$3.4B
Q2 25
$2.1B
$3.9B
Q1 25
$2.1B
$3.3B
Q4 24
$2.1B
$3.3B
Q3 24
$2.1B
$3.0B
Q2 24
$2.0B
$2.9B
Q1 24
$2.0B
$2.7B
Debt / Equity
ONTO
ONTO
WLFC
WLFC
Q4 25
4.08×
Q3 25
3.44×
Q2 25
4.53×
Q1 25
3.95×
Q4 24
4.12×
Q3 24
3.84×
Q2 24
3.95×
Q1 24
3.76×

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
WLFC
WLFC
Operating Cash FlowLast quarter
$83.4M
$74.2M
Free Cash FlowOCF − Capex
$82.0M
$66.2M
FCF MarginFCF / Revenue
37.6%
34.2%
Capex IntensityCapex / Revenue
0.6%
4.1%
Cash ConversionOCF / Net Profit
2.95×
TTM Free Cash FlowTrailing 4 quarters
$261.3M
$252.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ONTO
ONTO
WLFC
WLFC
Q4 25
$74.2M
Q3 25
$83.4M
$63.9M
Q2 25
$57.9M
$104.2M
Q1 25
$92.0M
$41.0M
Q4 24
$56.0M
$68.0M
Q3 24
$67.2M
$86.8M
Q2 24
$65.3M
$69.8M
Q1 24
$57.1M
$59.8M
Free Cash Flow
ONTO
ONTO
WLFC
WLFC
Q4 25
$66.2M
Q3 25
$82.0M
$57.8M
Q2 25
$44.2M
$94.5M
Q1 25
$83.7M
$33.5M
Q4 24
$51.4M
$55.1M
Q3 24
$59.2M
$85.7M
Q2 24
$53.0M
$68.5M
Q1 24
$50.2M
$59.4M
FCF Margin
ONTO
ONTO
WLFC
WLFC
Q4 25
34.2%
Q3 25
37.6%
31.5%
Q2 25
17.4%
48.4%
Q1 25
31.4%
21.3%
Q4 24
19.5%
36.1%
Q3 24
23.5%
58.6%
Q2 24
21.9%
45.3%
Q1 24
21.9%
49.9%
Capex Intensity
ONTO
ONTO
WLFC
WLFC
Q4 25
4.1%
Q3 25
0.6%
3.3%
Q2 25
5.4%
4.9%
Q1 25
3.1%
4.7%
Q4 24
1.8%
8.4%
Q3 24
3.2%
0.7%
Q2 24
5.1%
0.9%
Q1 24
3.0%
0.3%
Cash Conversion
ONTO
ONTO
WLFC
WLFC
Q4 25
Q3 25
2.95×
2.63×
Q2 25
1.71×
1.73×
Q1 25
1.44×
2.43×
Q4 24
1.15×
Q3 24
1.27×
3.60×
Q2 24
1.23×
1.64×
Q1 24
1.22×
2.87×

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%

WLFC
WLFC

Segment breakdown not available.

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