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

CIENA CORP is the larger business by last-quarter revenue ($1.2B vs $696.4M, roughly 1.8× BELDEN INC.). BELDEN INC. runs the higher net margin — 7.3% vs 4.1%, a 3.2% gap on every dollar of revenue. CIENA CORP produced more free cash flow last quarter ($134.6M vs $-63.1M). Over the past eight quarters, BELDEN INC.'s revenue compounded faster (7.3% CAGR vs 3.9%).

Belden Inc. is an American, multinational, publicly traded company specializing in the design, manufacture, and distribution of end-to-end networking, security and connectivity products. The company serves the Industrial Automation Solutions, Smart Buildings and Broadband & 5G markets.

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).

BDC vs CIEN — Head-to-Head

Bigger by revenue
CIEN
CIEN
1.8× larger
CIEN
$1.2B
$696.4M
BDC
Higher net margin
BDC
BDC
3.2% more per $
BDC
7.3%
4.1%
CIEN
More free cash flow
CIEN
CIEN
$197.7M more FCF
CIEN
$134.6M
$-63.1M
BDC
Faster 2-yr revenue CAGR
BDC
BDC
Annualised
BDC
7.3%
3.9%
CIEN

Income Statement — Q1 FY2026 vs Q3 FY2025

Metric
BDC
BDC
CIEN
CIEN
Revenue
$696.4M
$1.2B
Net Profit
$51.0M
$50.3M
Gross Margin
37.1%
41.3%
Operating Margin
11.2%
6.0%
Net Margin
7.3%
4.1%
Revenue YoY
11.4%
Net Profit YoY
-1.8%
EPS (diluted)
$1.30
$0.35

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
BDC
BDC
CIEN
CIEN
Q1 26
$696.4M
Q4 25
$720.1M
Q3 25
$698.2M
$1.2B
Q2 25
$672.0M
$1.1B
Q1 25
$624.9M
$1.1B
Q4 24
$666.0M
$1.1B
Q3 24
$654.9M
$942.3M
Q2 24
$604.3M
$910.8M
Net Profit
BDC
BDC
CIEN
CIEN
Q1 26
$51.0M
Q4 25
$67.9M
Q3 25
$56.7M
$50.3M
Q2 25
$61.0M
$9.0M
Q1 25
$51.9M
$44.6M
Q4 24
$58.4M
$37.0M
Q3 24
$53.7M
$14.2M
Q2 24
$49.0M
$-16.8M
Gross Margin
BDC
BDC
CIEN
CIEN
Q1 26
37.1%
Q4 25
36.6%
Q3 25
37.7%
41.3%
Q2 25
38.5%
40.2%
Q1 25
39.3%
44.0%
Q4 24
37.5%
40.9%
Q3 24
37.3%
42.9%
Q2 24
37.5%
42.7%
Operating Margin
BDC
BDC
CIEN
CIEN
Q1 26
11.2%
Q4 25
12.2%
Q3 25
10.9%
6.0%
Q2 25
11.8%
2.9%
Q1 25
11.6%
7.5%
Q4 24
10.4%
5.3%
Q3 24
11.5%
2.8%
Q2 24
11.4%
-0.4%
Net Margin
BDC
BDC
CIEN
CIEN
Q1 26
7.3%
Q4 25
9.4%
Q3 25
8.1%
4.1%
Q2 25
9.1%
0.8%
Q1 25
8.3%
4.2%
Q4 24
8.8%
3.3%
Q3 24
8.2%
1.5%
Q2 24
8.1%
-1.8%
EPS (diluted)
BDC
BDC
CIEN
CIEN
Q1 26
$1.30
Q4 25
$1.70
Q3 25
$1.41
$0.35
Q2 25
$1.53
$0.06
Q1 25
$1.27
$0.31
Q4 24
$1.41
$0.26
Q3 24
$1.30
$0.10
Q2 24
$1.19
$-0.12

Balance Sheet & Financial Strength

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

Metric
BDC
BDC
CIEN
CIEN
Cash + ST InvestmentsLiquidity on hand
$272.2M
$1.3B
Total DebtLower is stronger
$1.3B
Stockholders' EquityBook value
$1.3B
$2.8B
Total Assets
$5.7B
Debt / EquityLower = less leverage
0.98×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BDC
BDC
CIEN
CIEN
Q1 26
$272.2M
Q4 25
$389.9M
Q3 25
$314.3M
$1.3B
Q2 25
$301.5M
$1.3B
Q1 25
$259.0M
$1.2B
Q4 24
$370.3M
$1.3B
Q3 24
$323.0M
$1.1B
Q2 24
$564.8M
$1.3B
Total Debt
BDC
BDC
CIEN
CIEN
Q1 26
$1.3B
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24
Stockholders' Equity
BDC
BDC
CIEN
CIEN
Q1 26
$1.3B
Q4 25
$1.3B
Q3 25
$1.2B
$2.8B
Q2 25
$1.2B
$2.8B
Q1 25
$1.2B
$2.8B
Q4 24
$1.3B
$2.8B
Q3 24
$1.2B
$2.9B
Q2 24
$1.2B
$2.9B
Total Assets
BDC
BDC
CIEN
CIEN
Q1 26
Q4 25
$3.5B
Q3 25
$3.4B
$5.7B
Q2 25
$3.4B
$5.7B
Q1 25
$3.3B
$5.6B
Q4 24
$3.3B
$5.6B
Q3 24
$3.3B
$5.6B
Q2 24
$3.5B
$5.6B
Debt / Equity
BDC
BDC
CIEN
CIEN
Q1 26
0.98×
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
Q3 24
Q2 24

Cash Flow & Capital Efficiency

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

Metric
BDC
BDC
CIEN
CIEN
Operating Cash FlowLast quarter
$174.3M
Free Cash FlowOCF − Capex
$-63.1M
$134.6M
FCF MarginFCF / Revenue
-9.1%
11.0%
Capex IntensityCapex / Revenue
6.4%
3.3%
Cash ConversionOCF / Net Profit
3.47×
TTM Free Cash FlowTrailing 4 quarters
$180.4M
$605.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BDC
BDC
CIEN
CIEN
Q1 26
Q4 25
$160.4M
Q3 25
$105.0M
$174.3M
Q2 25
$82.0M
$156.9M
Q1 25
$7.4M
$103.7M
Q4 24
$174.7M
$349.4M
Q3 24
$91.7M
$-159.4M
Q2 24
$83.0M
$58.5M
Free Cash Flow
BDC
BDC
CIEN
CIEN
Q1 26
$-63.1M
Q4 25
$121.3M
Q3 25
$65.3M
$134.6M
Q2 25
$56.9M
$128.2M
Q1 25
$-24.8M
$76.8M
Q4 24
$116.4M
$265.8M
Q3 24
$67.2M
$-179.0M
Q2 24
$61.0M
$41.6M
FCF Margin
BDC
BDC
CIEN
CIEN
Q1 26
-9.1%
Q4 25
16.8%
Q3 25
9.4%
11.0%
Q2 25
8.5%
11.4%
Q1 25
-4.0%
7.2%
Q4 24
17.5%
23.6%
Q3 24
10.3%
-19.0%
Q2 24
10.1%
4.6%
Capex Intensity
BDC
BDC
CIEN
CIEN
Q1 26
6.4%
Q4 25
5.4%
Q3 25
5.7%
3.3%
Q2 25
3.7%
2.6%
Q1 25
5.2%
2.5%
Q4 24
8.8%
7.4%
Q3 24
3.7%
2.1%
Q2 24
3.6%
1.9%
Cash Conversion
BDC
BDC
CIEN
CIEN
Q1 26
Q4 25
2.36×
Q3 25
1.85×
3.47×
Q2 25
1.34×
17.50×
Q1 25
0.14×
2.33×
Q4 24
2.99×
9.44×
Q3 24
1.71×
-11.20×
Q2 24
1.69×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BDC
BDC

Segment breakdown not available.

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%

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