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Side-by-side financial comparison of CIENA CORP (CIEN) and ON Semiconductor (ON). Click either name above to swap in a different company.

ON Semiconductor is the larger business by last-quarter revenue ($1.6B vs $1.2B, roughly 1.3× CIENA CORP). ON Semiconductor runs the higher net margin — 16.4% vs 4.1%, a 12.3% gap on every dollar of revenue. ON Semiconductor produced more free cash flow last quarter ($372.4M vs $134.6M). Over the past eight quarters, CIENA CORP's revenue compounded faster (3.9% CAGR vs -12.3%).

Ciena Corporation is an American optical networking systems and software company based in Hanover, Maryland. The company has been described as a vital player in optical connectivity. The company reported revenues of $4.8 billion and more than 9,000 employees, as of November 2025. Gary Smith serves as president and chief executive officer (CEO).

Fairchild Semiconductor International, Inc. was an American semiconductor company based in San Jose, California. It was founded in 1957 as a division of Fairchild Camera and Instrument by the "traitorous eight" who defected from Shockley Semiconductor Laboratory. It became a pioneer in the manufacturing of transistors and of integrated circuits. Schlumberger bought the firm in 1979 and sold it to National Semiconductor in 1987; Fairchild was spun off as an independent company again in 1997. I...

CIEN vs ON — Head-to-Head

Bigger by revenue
ON
ON
1.3× larger
ON
$1.6B
$1.2B
CIEN
Higher net margin
ON
ON
12.3% more per $
ON
16.4%
4.1%
CIEN
More free cash flow
ON
ON
$237.8M more FCF
ON
$372.4M
$134.6M
CIEN
Faster 2-yr revenue CAGR
CIEN
CIEN
Annualised
CIEN
3.9%
-12.3%
ON

Income Statement — Q3 FY2025 vs Q3 FY2025

Metric
CIEN
CIEN
ON
ON
Revenue
$1.2B
$1.6B
Net Profit
$50.3M
$255.0M
Gross Margin
41.3%
37.9%
Operating Margin
6.0%
17.0%
Net Margin
4.1%
16.4%
Revenue YoY
-10.0%
Net Profit YoY
-32.9%
EPS (diluted)
$0.35
$0.63

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
CIEN
CIEN
ON
ON
Q4 25
$1.6B
Q3 25
$1.2B
$1.5B
Q2 25
$1.1B
$1.4B
Q1 25
$1.1B
Q4 24
$1.1B
$1.7B
Q3 24
$942.3M
$1.8B
Q2 24
$910.8M
$1.7B
Q1 24
$1.0B
$1.9B
Net Profit
CIEN
CIEN
ON
ON
Q4 25
$255.0M
Q3 25
$50.3M
$170.3M
Q2 25
$9.0M
$-486.1M
Q1 25
$44.6M
Q4 24
$37.0M
$379.9M
Q3 24
$14.2M
$401.7M
Q2 24
$-16.8M
$338.2M
Q1 24
$49.5M
$453.0M
Gross Margin
CIEN
CIEN
ON
ON
Q4 25
37.9%
Q3 25
41.3%
37.6%
Q2 25
40.2%
20.3%
Q1 25
44.0%
Q4 24
40.9%
45.2%
Q3 24
42.9%
45.4%
Q2 24
42.7%
45.2%
Q1 24
45.0%
45.8%
Operating Margin
CIEN
CIEN
ON
ON
Q4 25
17.0%
Q3 25
6.0%
13.2%
Q2 25
2.9%
-39.7%
Q1 25
7.5%
Q4 24
5.3%
23.7%
Q3 24
2.8%
25.3%
Q2 24
-0.4%
22.4%
Q1 24
8.2%
28.2%
Net Margin
CIEN
CIEN
ON
ON
Q4 25
16.4%
Q3 25
4.1%
11.6%
Q2 25
0.8%
-33.6%
Q1 25
4.2%
Q4 24
3.3%
22.1%
Q3 24
1.5%
22.8%
Q2 24
-1.8%
19.5%
Q1 24
4.8%
24.3%
EPS (diluted)
CIEN
CIEN
ON
ON
Q4 25
$0.63
Q3 25
$0.35
$0.41
Q2 25
$0.06
$-1.15
Q1 25
$0.31
Q4 24
$0.26
$0.88
Q3 24
$0.10
$0.93
Q2 24
$-0.12
$0.78
Q1 24
$0.34
$1.04

Balance Sheet & Financial Strength

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

Metric
CIEN
CIEN
ON
ON
Cash + ST InvestmentsLiquidity on hand
$1.3B
$2.9B
Total DebtLower is stronger
$3.4B
Stockholders' EquityBook value
$2.8B
$7.9B
Total Assets
$5.7B
$13.0B
Debt / EquityLower = less leverage
0.43×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIEN
CIEN
ON
ON
Q4 25
$2.9B
Q3 25
$1.3B
$2.8B
Q2 25
$1.3B
$3.0B
Q1 25
$1.2B
Q4 24
$1.3B
$3.0B
Q3 24
$1.1B
$2.8B
Q2 24
$1.3B
$2.7B
Q1 24
$1.4B
$2.6B
Total Debt
CIEN
CIEN
ON
ON
Q4 25
$3.4B
Q3 25
$3.4B
Q2 25
$3.4B
Q1 25
Q4 24
$3.4B
Q3 24
$3.4B
Q2 24
$3.4B
Q1 24
$3.4B
Stockholders' Equity
CIEN
CIEN
ON
ON
Q4 25
$7.9B
Q3 25
$2.8B
$7.9B
Q2 25
$2.8B
$8.0B
Q1 25
$2.8B
Q4 24
$2.8B
$8.8B
Q3 24
$2.9B
$8.6B
Q2 24
$2.9B
$8.3B
Q1 24
$2.9B
$8.1B
Total Assets
CIEN
CIEN
ON
ON
Q4 25
$13.0B
Q3 25
$5.7B
$13.1B
Q2 25
$5.7B
$13.3B
Q1 25
$5.6B
Q4 24
$5.6B
$14.1B
Q3 24
$5.6B
$13.9B
Q2 24
$5.6B
$13.7B
Q1 24
$5.6B
$13.5B
Debt / Equity
CIEN
CIEN
ON
ON
Q4 25
0.43×
Q3 25
0.43×
Q2 25
0.42×
Q1 25
Q4 24
0.38×
Q3 24
0.39×
Q2 24
0.41×
Q1 24
0.42×

Cash Flow & Capital Efficiency

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

Metric
CIEN
CIEN
ON
ON
Operating Cash FlowLast quarter
$174.3M
$418.7M
Free Cash FlowOCF − Capex
$134.6M
$372.4M
FCF MarginFCF / Revenue
11.0%
24.0%
Capex IntensityCapex / Revenue
3.3%
3.0%
Cash ConversionOCF / Net Profit
3.47×
1.64×
TTM Free Cash FlowTrailing 4 quarters
$605.5M
$1.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIEN
CIEN
ON
ON
Q4 25
$418.7M
Q3 25
$174.3M
$184.3M
Q2 25
$156.9M
$602.3M
Q1 25
$103.7M
Q4 24
$349.4M
$579.7M
Q3 24
$-159.4M
$465.8M
Q2 24
$58.5M
$362.2M
Q1 24
$266.1M
$498.7M
Free Cash Flow
CIEN
CIEN
ON
ON
Q4 25
$372.4M
Q3 25
$134.6M
$106.1M
Q2 25
$128.2M
$454.7M
Q1 25
$76.8M
Q4 24
$265.8M
$434.8M
Q3 24
$-179.0M
$293.6M
Q2 24
$41.6M
$207.7M
Q1 24
$249.5M
$276.3M
FCF Margin
CIEN
CIEN
ON
ON
Q4 25
24.0%
Q3 25
11.0%
7.2%
Q2 25
11.4%
31.5%
Q1 25
7.2%
Q4 24
23.6%
25.2%
Q3 24
-19.0%
16.7%
Q2 24
4.6%
12.0%
Q1 24
24.0%
14.8%
Capex Intensity
CIEN
CIEN
ON
ON
Q4 25
3.0%
Q3 25
3.3%
5.3%
Q2 25
2.6%
10.2%
Q1 25
2.5%
Q4 24
7.4%
8.4%
Q3 24
2.1%
9.8%
Q2 24
1.9%
8.9%
Q1 24
1.6%
11.9%
Cash Conversion
CIEN
CIEN
ON
ON
Q4 25
1.64×
Q3 25
3.47×
1.08×
Q2 25
17.50×
Q1 25
2.33×
Q4 24
9.44×
1.53×
Q3 24
-11.20×
1.16×
Q2 24
1.07×
Q1 24
5.37×
1.10×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CIEN
CIEN

Optical Networking$815.5M67%
Routing And Switching$125.9M10%
Platform Softwareand Services Segment$90.0M7%
Maintenance Support And Training$80.7M7%
Installation And Deployment$65.9M5%
Blue Planet Automation Softwareand Services Segment$27.8M2%
Consulting And Network Design$13.6M1%

ON
ON

Industrial Segment$426.3M27%
Other End Markets Segment$337.3M22%
Intelligent Sensing Segments$284.0M18%
Direct Customers$282.4M18%
Intelligent Sensing Group$230.0M15%

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