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

DYCOM INDUSTRIES INC is the larger business by last-quarter revenue ($1.5B vs $1.2B, roughly 1.2× CIENA CORP). DYCOM INDUSTRIES INC runs the higher net margin — 7.3% vs 4.1%, a 3.2% gap on every dollar of revenue. DYCOM INDUSTRIES INC produced more free cash flow last quarter ($164.8M vs $134.6M). Over the past eight quarters, DYCOM INDUSTRIES INC's revenue compounded faster (23.5% CAGR vs 3.9%).

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).

Quanta Services is a U.S. corporation that provides infrastructure services for the electric power, pipeline, industrial and communications industries. Its capabilities include planning, design, installation, program management, maintenance and repair of most types of network infrastructure. The company has grown organically since its founding, but it has also acquired over 150 companies in the electrical contracting industry. It has provided its services and expertise to many major electrica...

CIEN vs DY — Head-to-Head

Bigger by revenue
DY
DY
1.2× larger
DY
$1.5B
$1.2B
CIEN
Higher net margin
DY
DY
3.2% more per $
DY
7.3%
4.1%
CIEN
More free cash flow
DY
DY
$30.2M more FCF
DY
$164.8M
$134.6M
CIEN
Faster 2-yr revenue CAGR
DY
DY
Annualised
DY
23.5%
3.9%
CIEN

Income Statement — Q3 FY2025 vs Q3 FY2026

Metric
CIEN
CIEN
DY
DY
Revenue
$1.2B
$1.5B
Net Profit
$50.3M
$106.4M
Gross Margin
41.3%
Operating Margin
6.0%
9.7%
Net Margin
4.1%
7.3%
Revenue YoY
14.1%
Net Profit YoY
52.4%
EPS (diluted)
$0.35
$3.63

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
DY
DY
Q4 25
$1.5B
Q3 25
$1.2B
$1.4B
Q2 25
$1.1B
$1.3B
Q1 25
$1.1B
$1.1B
Q4 24
$1.1B
$1.3B
Q3 24
$942.3M
$1.2B
Q2 24
$910.8M
$1.1B
Q1 24
$1.0B
$952.5M
Net Profit
CIEN
CIEN
DY
DY
Q4 25
$106.4M
Q3 25
$50.3M
$97.5M
Q2 25
$9.0M
$61.0M
Q1 25
$44.6M
$32.7M
Q4 24
$37.0M
$69.8M
Q3 24
$14.2M
$68.4M
Q2 24
$-16.8M
$62.6M
Q1 24
$49.5M
$23.4M
Gross Margin
CIEN
CIEN
DY
DY
Q4 25
Q3 25
41.3%
Q2 25
40.2%
Q1 25
44.0%
Q4 24
40.9%
Q3 24
42.9%
Q2 24
42.7%
Q1 24
45.0%
Operating Margin
CIEN
CIEN
DY
DY
Q4 25
9.7%
Q3 25
6.0%
9.5%
Q2 25
2.9%
6.2%
Q1 25
7.5%
4.1%
Q4 24
5.3%
7.2%
Q3 24
2.8%
7.9%
Q2 24
-0.4%
6.8%
Q1 24
8.2%
3.3%
Net Margin
CIEN
CIEN
DY
DY
Q4 25
7.3%
Q3 25
4.1%
7.1%
Q2 25
0.8%
4.9%
Q1 25
4.2%
3.0%
Q4 24
3.3%
5.5%
Q3 24
1.5%
5.7%
Q2 24
-1.8%
5.5%
Q1 24
4.8%
2.5%
EPS (diluted)
CIEN
CIEN
DY
DY
Q4 25
$3.63
Q3 25
$0.35
$3.33
Q2 25
$0.06
$2.09
Q1 25
$0.31
$1.11
Q4 24
$0.26
$2.37
Q3 24
$0.10
$2.32
Q2 24
$-0.12
$2.12
Q1 24
$0.34
$0.79

Balance Sheet & Financial Strength

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

Metric
CIEN
CIEN
DY
DY
Cash + ST InvestmentsLiquidity on hand
$1.3B
$110.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.8B
$1.5B
Total Assets
$5.7B
$3.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CIEN
CIEN
DY
DY
Q4 25
$110.1M
Q3 25
$1.3B
$28.5M
Q2 25
$1.3B
$16.1M
Q1 25
$1.2B
$92.7M
Q4 24
$1.3B
$15.3M
Q3 24
$1.1B
$19.6M
Q2 24
$1.3B
$26.1M
Q1 24
$1.4B
$101.1M
Stockholders' Equity
CIEN
CIEN
DY
DY
Q4 25
$1.5B
Q3 25
$2.8B
$1.4B
Q2 25
$2.8B
$1.3B
Q1 25
$2.8B
$1.2B
Q4 24
$2.8B
$1.2B
Q3 24
$2.9B
$1.2B
Q2 24
$2.9B
$1.1B
Q1 24
$2.9B
$1.1B
Total Assets
CIEN
CIEN
DY
DY
Q4 25
$3.3B
Q3 25
$5.7B
$3.2B
Q2 25
$5.7B
$3.1B
Q1 25
$5.6B
$2.9B
Q4 24
$5.6B
$3.1B
Q3 24
$5.6B
$2.8B
Q2 24
$5.6B
$2.6B
Q1 24
$5.6B
$2.5B

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
DY
DY
Operating Cash FlowLast quarter
$174.3M
$220.0M
Free Cash FlowOCF − Capex
$134.6M
$164.8M
FCF MarginFCF / Revenue
11.0%
11.4%
Capex IntensityCapex / Revenue
3.3%
3.8%
Cash ConversionOCF / Net Profit
3.47×
2.07×
TTM Free Cash FlowTrailing 4 quarters
$605.5M
$296.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CIEN
CIEN
DY
DY
Q4 25
$220.0M
Q3 25
$174.3M
$57.4M
Q2 25
$156.9M
$-54.0M
Q1 25
$103.7M
$328.2M
Q4 24
$349.4M
$65.8M
Q3 24
$-159.4M
$-7.5M
Q2 24
$58.5M
$-37.4M
Q1 24
$266.1M
$325.1M
Free Cash Flow
CIEN
CIEN
DY
DY
Q4 25
$164.8M
Q3 25
$134.6M
$5.8M
Q2 25
$128.2M
$-133.5M
Q1 25
$76.8M
$259.7M
Q4 24
$265.8M
$-8.8M
Q3 24
$-179.0M
$-72.9M
Q2 24
$41.6M
$-79.4M
Q1 24
$249.5M
$267.7M
FCF Margin
CIEN
CIEN
DY
DY
Q4 25
11.4%
Q3 25
11.0%
0.4%
Q2 25
11.4%
-10.6%
Q1 25
7.2%
23.9%
Q4 24
23.6%
-0.7%
Q3 24
-19.0%
-6.1%
Q2 24
4.6%
-6.9%
Q1 24
24.0%
28.1%
Capex Intensity
CIEN
CIEN
DY
DY
Q4 25
3.8%
Q3 25
3.3%
3.8%
Q2 25
2.6%
6.3%
Q1 25
2.5%
6.3%
Q4 24
7.4%
5.9%
Q3 24
2.1%
5.4%
Q2 24
1.9%
3.7%
Q1 24
1.6%
6.0%
Cash Conversion
CIEN
CIEN
DY
DY
Q4 25
2.07×
Q3 25
3.47×
0.59×
Q2 25
17.50×
-0.88×
Q1 25
2.33×
10.05×
Q4 24
9.44×
0.94×
Q3 24
-11.20×
-0.11×
Q2 24
-0.60×
Q1 24
5.37×
13.88×

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%

DY
DY

Segment breakdown not available.

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