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

Rockwell Automation is the larger business by last-quarter revenue ($2.1B vs $1.2B, roughly 1.7× CIENA CORP). Rockwell Automation runs the higher net margin — 14.5% vs 4.1%, a 10.4% gap on every dollar of revenue. Rockwell Automation produced more free cash flow last quarter ($170.0M vs $134.6M). Over the past eight quarters, CIENA CORP's revenue compounded faster (3.9% CAGR vs -0.5%).

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).

Rockwell Automation, Inc. is an American provider of industrial automation and digital transformation technologies headquartered in Milwaukee, Wisconsin. Its brands include Allen-Bradley, FactoryTalk software and LifecycleIQ Services. Rockwell Automation employs approximately 27,000 people and has customers in more than 100 countries worldwide.

CIEN vs ROK — Head-to-Head

Bigger by revenue
ROK
ROK
1.7× larger
ROK
$2.1B
$1.2B
CIEN
Higher net margin
ROK
ROK
10.4% more per $
ROK
14.5%
4.1%
CIEN
More free cash flow
ROK
ROK
$35.4M more FCF
ROK
$170.0M
$134.6M
CIEN
Faster 2-yr revenue CAGR
CIEN
CIEN
Annualised
CIEN
3.9%
-0.5%
ROK

Income Statement — Q3 FY2025 vs Q1 FY2026

Metric
CIEN
CIEN
ROK
ROK
Revenue
$1.2B
$2.1B
Net Profit
$50.3M
$305.0M
Gross Margin
41.3%
48.3%
Operating Margin
6.0%
20.7%
Net Margin
4.1%
14.5%
Revenue YoY
11.9%
Net Profit YoY
65.8%
EPS (diluted)
$0.35
$2.69

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
CIEN
CIEN
ROK
ROK
Q4 25
$2.1B
Q3 25
$1.2B
$2.3B
Q2 25
$1.1B
$2.1B
Q1 25
$1.1B
$2.0B
Q4 24
$1.1B
$1.9B
Q3 24
$942.3M
$2.0B
Q2 24
$910.8M
$2.1B
Q1 24
$1.0B
$2.1B
Net Profit
CIEN
CIEN
ROK
ROK
Q4 25
$305.0M
Q3 25
$50.3M
$138.0M
Q2 25
$9.0M
$295.0M
Q1 25
$44.6M
$252.0M
Q4 24
$37.0M
$184.0M
Q3 24
$14.2M
$239.1M
Q2 24
$-16.8M
$232.0M
Q1 24
$49.5M
$266.2M
Gross Margin
CIEN
CIEN
ROK
ROK
Q4 25
48.3%
Q3 25
41.3%
69.4%
Q2 25
40.2%
40.9%
Q1 25
44.0%
40.5%
Q4 24
40.9%
38.4%
Q3 24
42.9%
37.9%
Q2 24
42.7%
38.8%
Q1 24
45.0%
39.2%
Operating Margin
CIEN
CIEN
ROK
ROK
Q4 25
20.7%
Q3 25
6.0%
2.7%
Q2 25
2.9%
16.0%
Q1 25
7.5%
14.9%
Q4 24
5.3%
17.1%
Q3 24
2.8%
13.5%
Q2 24
-0.4%
12.4%
Q1 24
8.2%
14.6%
Net Margin
CIEN
CIEN
ROK
ROK
Q4 25
14.5%
Q3 25
4.1%
6.0%
Q2 25
0.8%
13.8%
Q1 25
4.2%
12.6%
Q4 24
3.3%
9.8%
Q3 24
1.5%
11.7%
Q2 24
-1.8%
11.3%
Q1 24
4.8%
12.5%
EPS (diluted)
CIEN
CIEN
ROK
ROK
Q4 25
$2.69
Q3 25
$0.35
$1.24
Q2 25
$0.06
$2.60
Q1 25
$0.31
$2.22
Q4 24
$0.26
$1.61
Q3 24
$0.10
$2.09
Q2 24
$-0.12
$2.02
Q1 24
$0.34
$2.31

Balance Sheet & Financial Strength

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

Metric
CIEN
CIEN
ROK
ROK
Cash + ST InvestmentsLiquidity on hand
$1.3B
$444.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.8B
$3.7B
Total Assets
$5.7B
$11.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIEN
CIEN
ROK
ROK
Q4 25
$444.0M
Q3 25
$1.3B
$468.0M
Q2 25
$1.3B
$495.0M
Q1 25
$1.2B
$456.0M
Q4 24
$1.3B
$477.0M
Q3 24
$1.1B
$471.3M
Q2 24
$1.3B
$407.0M
Q1 24
$1.4B
$470.5M
Total Debt
CIEN
CIEN
ROK
ROK
Q4 25
Q3 25
$2.6B
Q2 25
Q1 25
Q4 24
Q3 24
$2.6B
Q2 24
Q1 24
Stockholders' Equity
CIEN
CIEN
ROK
ROK
Q4 25
$3.7B
Q3 25
$2.8B
$3.7B
Q2 25
$2.8B
$3.5B
Q1 25
$2.8B
$3.4B
Q4 24
$2.8B
$3.4B
Q3 24
$2.9B
$3.5B
Q2 24
$2.9B
$3.3B
Q1 24
$2.9B
$3.5B
Total Assets
CIEN
CIEN
ROK
ROK
Q4 25
$11.2B
Q3 25
$5.7B
$11.2B
Q2 25
$5.7B
$11.2B
Q1 25
$5.6B
$11.0B
Q4 24
$5.6B
$10.9B
Q3 24
$5.6B
$11.2B
Q2 24
$5.6B
$11.2B
Q1 24
$5.6B
$11.4B
Debt / Equity
CIEN
CIEN
ROK
ROK
Q4 25
Q3 25
0.72×
Q2 25
Q1 25
Q4 24
Q3 24
0.73×
Q2 24
Q1 24

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
ROK
ROK
Operating Cash FlowLast quarter
$174.3M
$234.0M
Free Cash FlowOCF − Capex
$134.6M
$170.0M
FCF MarginFCF / Revenue
11.0%
8.1%
Capex IntensityCapex / Revenue
3.3%
3.0%
Cash ConversionOCF / Net Profit
3.47×
0.77×
TTM Free Cash FlowTrailing 4 quarters
$605.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIEN
CIEN
ROK
ROK
Q4 25
$234.0M
Q3 25
$174.3M
$454.0M
Q2 25
$156.9M
$527.0M
Q1 25
$103.7M
$199.0M
Q4 24
$349.4M
$364.0M
Q3 24
$-159.4M
$432.3M
Q2 24
$58.5M
$279.1M
Q1 24
$266.1M
$119.8M
Free Cash Flow
CIEN
CIEN
ROK
ROK
Q4 25
$170.0M
Q3 25
$134.6M
Q2 25
$128.2M
$489.0M
Q1 25
$76.8M
$171.0M
Q4 24
$265.8M
$293.0M
Q3 24
$-179.0M
Q2 24
$41.6M
$238.4M
Q1 24
$249.5M
$68.6M
FCF Margin
CIEN
CIEN
ROK
ROK
Q4 25
8.1%
Q3 25
11.0%
Q2 25
11.4%
22.8%
Q1 25
7.2%
8.5%
Q4 24
23.6%
15.6%
Q3 24
-19.0%
Q2 24
4.6%
11.6%
Q1 24
24.0%
3.2%
Capex Intensity
CIEN
CIEN
ROK
ROK
Q4 25
3.0%
Q3 25
3.3%
Q2 25
2.6%
1.8%
Q1 25
2.5%
1.4%
Q4 24
7.4%
3.8%
Q3 24
2.1%
Q2 24
1.9%
2.0%
Q1 24
1.6%
2.4%
Cash Conversion
CIEN
CIEN
ROK
ROK
Q4 25
0.77×
Q3 25
3.47×
3.29×
Q2 25
17.50×
1.79×
Q1 25
2.33×
0.79×
Q4 24
9.44×
1.98×
Q3 24
-11.20×
1.81×
Q2 24
1.20×
Q1 24
5.37×
0.45×

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%

ROK
ROK

Productsand Solutions$1.9B89%
Lifecycle Services Segment$259.0M12%

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