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Side-by-side financial comparison of ONTO INNOVATION INC. (ONTO) and SUBURBAN PROPANE PARTNERS LP (SPH). Click either name above to swap in a different company.

SUBURBAN PROPANE PARTNERS LP is the larger business by last-quarter revenue ($370.4M vs $218.2M, roughly 1.7× ONTO INNOVATION INC.). ONTO INNOVATION INC. runs the higher net margin — 12.9% vs 12.4%, a 0.6% gap on every dollar of revenue. On growth, SUBURBAN PROPANE PARTNERS LP posted the faster year-over-year revenue change (-0.8% vs -13.5%). ONTO INNOVATION INC. produced more free cash flow last quarter ($82.0M vs $-67.5M). Over the past eight quarters, ONTO INNOVATION INC.'s revenue compounded faster (2.6% CAGR vs -13.8%).

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.

Suburban Propane Partners LP is a leading U.S. distributor of propane, natural gas, heating oil and related energy products, serving residential, commercial, industrial and agricultural customers across the country. It also provides HVAC system installation, maintenance and repair services, catering mainly to suburban and off-grid communities.

ONTO vs SPH — Head-to-Head

Bigger by revenue
SPH
SPH
1.7× larger
SPH
$370.4M
$218.2M
ONTO
Growing faster (revenue YoY)
SPH
SPH
+12.7% gap
SPH
-0.8%
-13.5%
ONTO
Higher net margin
ONTO
ONTO
0.6% more per $
ONTO
12.9%
12.4%
SPH
More free cash flow
ONTO
ONTO
$149.5M more FCF
ONTO
$82.0M
$-67.5M
SPH
Faster 2-yr revenue CAGR
ONTO
ONTO
Annualised
ONTO
2.6%
-13.8%
SPH

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
ONTO
ONTO
SPH
SPH
Revenue
$218.2M
$370.4M
Net Profit
$28.2M
$45.8M
Gross Margin
50.7%
64.7%
Operating Margin
10.9%
18.3%
Net Margin
12.9%
12.4%
Revenue YoY
-13.5%
-0.8%
Net Profit YoY
-46.8%
135.7%
EPS (diluted)
$0.57
$0.69

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
SPH
SPH
Q4 25
$370.4M
Q3 25
$218.2M
$211.4M
Q2 25
$253.6M
$260.1M
Q1 25
$266.6M
$587.7M
Q4 24
$263.9M
$373.3M
Q3 24
$252.2M
$208.6M
Q2 24
$242.3M
$254.6M
Q1 24
$228.8M
$498.1M
Net Profit
ONTO
ONTO
SPH
SPH
Q4 25
$45.8M
Q3 25
$28.2M
$-35.1M
Q2 25
$33.9M
$-14.8M
Q1 25
$64.1M
$137.1M
Q4 24
$48.8M
$19.4M
Q3 24
$53.1M
$-44.6M
Q2 24
$52.9M
$-17.2M
Q1 24
$46.9M
$111.5M
Gross Margin
ONTO
ONTO
SPH
SPH
Q4 25
64.7%
Q3 25
50.7%
64.7%
Q2 25
48.2%
61.7%
Q1 25
53.7%
58.8%
Q4 24
50.2%
60.6%
Q3 24
54.1%
59.4%
Q2 24
52.9%
62.9%
Q1 24
51.7%
61.8%
Operating Margin
ONTO
ONTO
SPH
SPH
Q4 25
18.3%
Q3 25
10.9%
-7.9%
Q2 25
12.7%
2.1%
Q1 25
23.7%
27.0%
Q4 24
16.1%
15.8%
Q3 24
21.0%
-10.8%
Q2 24
20.2%
3.2%
Q1 24
18.7%
27.5%
Net Margin
ONTO
ONTO
SPH
SPH
Q4 25
12.4%
Q3 25
12.9%
-16.6%
Q2 25
13.4%
-5.7%
Q1 25
24.0%
23.3%
Q4 24
18.5%
5.2%
Q3 24
21.0%
-21.4%
Q2 24
21.9%
-6.8%
Q1 24
20.5%
22.4%
EPS (diluted)
ONTO
ONTO
SPH
SPH
Q4 25
$0.69
Q3 25
$0.57
$-0.55
Q2 25
$0.69
$-0.23
Q1 25
$1.30
$2.10
Q4 24
$0.98
$0.30
Q3 24
$1.07
$-0.69
Q2 24
$1.07
$-0.27
Q1 24
$0.94
$1.72

Balance Sheet & Financial Strength

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

Metric
ONTO
ONTO
SPH
SPH
Cash + ST InvestmentsLiquidity on hand
$603.1M
$1.3M
Total DebtLower is stronger
$1.3B
Stockholders' EquityBook value
$2.0B
Total Assets
$2.2B
$2.4B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ONTO
ONTO
SPH
SPH
Q4 25
$1.3M
Q3 25
$603.1M
$405.0K
Q2 25
$217.5M
$1.3M
Q1 25
$203.7M
$3.9M
Q4 24
$212.9M
$4.4M
Q3 24
$188.7M
$3.2M
Q2 24
$172.6M
$4.9M
Q1 24
$190.9M
$4.4M
Total Debt
ONTO
ONTO
SPH
SPH
Q4 25
$1.3B
Q3 25
$1.2B
Q2 25
$1.2B
Q1 25
$1.3B
Q4 24
$1.3B
Q3 24
$1.2B
Q2 24
$1.2B
Q1 24
$1.2B
Stockholders' Equity
ONTO
ONTO
SPH
SPH
Q4 25
Q3 25
$2.0B
Q2 25
$2.0B
Q1 25
$1.9B
Q4 24
$1.9B
Q3 24
$1.9B
Q2 24
$1.8B
Q1 24
$1.8B
Total Assets
ONTO
ONTO
SPH
SPH
Q4 25
$2.4B
Q3 25
$2.2B
$2.3B
Q2 25
$2.1B
$2.3B
Q1 25
$2.1B
$2.4B
Q4 24
$2.1B
$2.4B
Q3 24
$2.1B
$2.3B
Q2 24
$2.0B
$2.3B
Q1 24
$2.0B
$2.3B

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
SPH
SPH
Operating Cash FlowLast quarter
$83.4M
$-47.7M
Free Cash FlowOCF − Capex
$82.0M
$-67.5M
FCF MarginFCF / Revenue
37.6%
-18.2%
Capex IntensityCapex / Revenue
0.6%
5.3%
Cash ConversionOCF / Net Profit
2.95×
-1.04×
TTM Free Cash FlowTrailing 4 quarters
$261.3M
$61.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ONTO
ONTO
SPH
SPH
Q4 25
$-47.7M
Q3 25
$83.4M
$41.8M
Q2 25
$57.9M
$95.5M
Q1 25
$92.0M
$40.1M
Q4 24
$56.0M
$8.8M
Q3 24
$67.2M
$36.8M
Q2 24
$65.3M
$61.4M
Q1 24
$57.1M
$75.1M
Free Cash Flow
ONTO
ONTO
SPH
SPH
Q4 25
$-67.5M
Q3 25
$82.0M
$27.7M
Q2 25
$44.2M
$80.9M
Q1 25
$83.7M
$20.8M
Q4 24
$51.4M
$-15.1M
Q3 24
$59.2M
$17.7M
Q2 24
$53.0M
$46.8M
Q1 24
$50.2M
$60.6M
FCF Margin
ONTO
ONTO
SPH
SPH
Q4 25
-18.2%
Q3 25
37.6%
13.1%
Q2 25
17.4%
31.1%
Q1 25
31.4%
3.5%
Q4 24
19.5%
-4.0%
Q3 24
23.5%
8.5%
Q2 24
21.9%
18.4%
Q1 24
21.9%
12.2%
Capex Intensity
ONTO
ONTO
SPH
SPH
Q4 25
5.3%
Q3 25
0.6%
6.7%
Q2 25
5.4%
5.6%
Q1 25
3.1%
3.3%
Q4 24
1.8%
6.4%
Q3 24
3.2%
9.1%
Q2 24
5.1%
5.8%
Q1 24
3.0%
2.9%
Cash Conversion
ONTO
ONTO
SPH
SPH
Q4 25
-1.04×
Q3 25
2.95×
Q2 25
1.71×
Q1 25
1.44×
0.29×
Q4 24
1.15×
0.45×
Q3 24
1.27×
Q2 24
1.23×
Q1 24
1.22×
0.67×

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%

SPH
SPH

Propane$326.4M88%
Other Sales Revenue Net$19.9M5%
Fuel Oil And Refined Fuels$18.2M5%
Natural Gas And Electricity$5.9M2%
Wholesale$4.1M1%

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