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

ONTO INNOVATION INC. is the larger business by last-quarter revenue ($218.2M vs $162.6M, roughly 1.3× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs 12.9%, a 41.8% gap on every dollar of revenue. On growth, Ribbon Communications Inc. posted the faster year-over-year revenue change (-10.3% vs -13.5%). Over the past eight quarters, ONTO INNOVATION INC.'s revenue compounded faster (2.6% CAGR vs -8.1%).

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.

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

ONTO vs RBBN — Head-to-Head

Bigger by revenue
ONTO
ONTO
1.3× larger
ONTO
$218.2M
$162.6M
RBBN
Growing faster (revenue YoY)
RBBN
RBBN
+3.2% gap
RBBN
-10.3%
-13.5%
ONTO
Higher net margin
RBBN
RBBN
41.8% more per $
RBBN
54.8%
12.9%
ONTO
Faster 2-yr revenue CAGR
ONTO
ONTO
Annualised
ONTO
2.6%
-8.1%
RBBN

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
ONTO
ONTO
RBBN
RBBN
Revenue
$218.2M
$162.6M
Net Profit
$28.2M
$89.1M
Gross Margin
50.7%
42.9%
Operating Margin
10.9%
37.6%
Net Margin
12.9%
54.8%
Revenue YoY
-13.5%
-10.3%
Net Profit YoY
-46.8%
EPS (diluted)
$0.57
$0.50

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
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$227.3M
Q3 25
$218.2M
$215.4M
Q2 25
$253.6M
$220.6M
Q1 25
$266.6M
$181.3M
Q4 24
$263.9M
$251.4M
Q3 24
$252.2M
$210.2M
Q2 24
$242.3M
$192.6M
Net Profit
ONTO
ONTO
RBBN
RBBN
Q1 26
$89.1M
Q4 25
Q3 25
$28.2M
$-12.1M
Q2 25
$33.9M
$-11.1M
Q1 25
$64.1M
$-26.2M
Q4 24
$48.8M
Q3 24
$53.1M
$-13.4M
Q2 24
$52.9M
$-16.8M
Gross Margin
ONTO
ONTO
RBBN
RBBN
Q1 26
42.9%
Q4 25
53.3%
Q3 25
50.7%
50.1%
Q2 25
48.2%
49.6%
Q1 25
53.7%
45.4%
Q4 24
50.2%
55.7%
Q3 24
54.1%
52.1%
Q2 24
52.9%
50.8%
Operating Margin
ONTO
ONTO
RBBN
RBBN
Q1 26
37.6%
Q4 25
4.1%
Q3 25
10.9%
1.3%
Q2 25
12.7%
1.9%
Q1 25
23.7%
-10.8%
Q4 24
16.1%
13.2%
Q3 24
21.0%
-0.4%
Q2 24
20.2%
-1.0%
Net Margin
ONTO
ONTO
RBBN
RBBN
Q1 26
54.8%
Q4 25
Q3 25
12.9%
-5.6%
Q2 25
13.4%
-5.0%
Q1 25
24.0%
-14.5%
Q4 24
18.5%
Q3 24
21.0%
-6.4%
Q2 24
21.9%
-8.7%
EPS (diluted)
ONTO
ONTO
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.50
Q3 25
$0.57
$-0.07
Q2 25
$0.69
$-0.06
Q1 25
$1.30
$-0.15
Q4 24
$0.98
$0.05
Q3 24
$1.07
$-0.08
Q2 24
$1.07
$-0.10

Balance Sheet & Financial Strength

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

Metric
ONTO
ONTO
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$603.1M
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.0B
$419.1M
Total Assets
$2.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ONTO
ONTO
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$96.4M
Q3 25
$603.1M
$74.8M
Q2 25
$217.5M
$60.5M
Q1 25
$203.7M
$71.2M
Q4 24
$212.9M
$87.8M
Q3 24
$188.7M
$37.2M
Q2 24
$172.6M
$64.6M
Total Debt
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$348.3M
Q3 24
$349.1M
Q2 24
$350.0M
Stockholders' Equity
ONTO
ONTO
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$449.0M
Q3 25
$2.0B
$360.1M
Q2 25
$2.0B
$370.4M
Q1 25
$1.9B
$381.8M
Q4 24
$1.9B
$404.6M
Q3 24
$1.9B
$395.5M
Q2 24
$1.8B
$405.0M
Total Assets
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
$1.2B
Q3 25
$2.2B
$1.1B
Q2 25
$2.1B
$1.1B
Q1 25
$2.1B
$1.1B
Q4 24
$2.1B
$1.2B
Q3 24
$2.1B
$1.1B
Q2 24
$2.0B
$1.1B
Debt / Equity
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

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
RBBN
RBBN
Operating Cash FlowLast quarter
$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
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
$29.2M
Q3 25
$83.4M
$26.5M
Q2 25
$57.9M
$-795.0K
Q1 25
$92.0M
$-3.5M
Q4 24
$56.0M
$61.8M
Q3 24
$67.2M
$-14.8M
Q2 24
$65.3M
$-9.8M
Free Cash Flow
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
$27.3M
Q3 25
$82.0M
$21.0M
Q2 25
$44.2M
$-6.5M
Q1 25
$83.7M
$-15.7M
Q4 24
$51.4M
$53.8M
Q3 24
$59.2M
$-23.7M
Q2 24
$53.0M
$-12.9M
FCF Margin
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
12.0%
Q3 25
37.6%
9.7%
Q2 25
17.4%
-2.9%
Q1 25
31.4%
-8.7%
Q4 24
19.5%
21.4%
Q3 24
23.5%
-11.3%
Q2 24
21.9%
-6.7%
Capex Intensity
ONTO
ONTO
RBBN
RBBN
Q1 26
Q4 25
0.9%
Q3 25
0.6%
2.6%
Q2 25
5.4%
2.6%
Q1 25
3.1%
6.7%
Q4 24
1.8%
3.2%
Q3 24
3.2%
4.2%
Q2 24
5.1%
1.6%
Cash Conversion
ONTO
ONTO
RBBN
RBBN
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%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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