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Side-by-side financial comparison of CABOT CORP (CBT) 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 $849.0M, roughly 1.4× CABOT CORP). CABOT CORP runs the higher net margin — 8.6% vs 4.1%, a 4.5% gap on every dollar of revenue. CIENA CORP produced more free cash flow last quarter ($134.6M vs $57.0M). Over the past eight quarters, CIENA CORP's revenue compounded faster (3.9% CAGR vs -8.7%).

Cabot Corporation is an American specialty chemicals and performance materials company headquartered in Boston, Massachusetts. The company operates in over 20 countries with 36 manufacturing plants, eight research and development facilities, and 28 sales offices.

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).

CBT vs CIEN — Head-to-Head

Bigger by revenue
CIEN
CIEN
1.4× larger
CIEN
$1.2B
$849.0M
CBT
Higher net margin
CBT
CBT
4.5% more per $
CBT
8.6%
4.1%
CIEN
More free cash flow
CIEN
CIEN
$77.6M more FCF
CIEN
$134.6M
$57.0M
CBT
Faster 2-yr revenue CAGR
CIEN
CIEN
Annualised
CIEN
3.9%
-8.7%
CBT

Income Statement — Q1 FY2026 vs Q3 FY2025

Metric
CBT
CBT
CIEN
CIEN
Revenue
$849.0M
$1.2B
Net Profit
$73.0M
$50.3M
Gross Margin
24.9%
41.3%
Operating Margin
15.2%
6.0%
Net Margin
8.6%
4.1%
Revenue YoY
-11.1%
Net Profit YoY
-21.5%
EPS (diluted)
$1.37
$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
CBT
CBT
CIEN
CIEN
Q4 25
$849.0M
Q3 25
$899.0M
$1.2B
Q2 25
$923.0M
$1.1B
Q1 25
$936.0M
$1.1B
Q4 24
$955.0M
$1.1B
Q3 24
$1.0B
$942.3M
Q2 24
$1.0B
$910.8M
Q1 24
$1.0B
$1.0B
Net Profit
CBT
CBT
CIEN
CIEN
Q4 25
$73.0M
Q3 25
$43.0M
$50.3M
Q2 25
$101.0M
$9.0M
Q1 25
$94.0M
$44.6M
Q4 24
$93.0M
$37.0M
Q3 24
$137.0M
$14.2M
Q2 24
$109.0M
$-16.8M
Q1 24
$84.0M
$49.5M
Gross Margin
CBT
CBT
CIEN
CIEN
Q4 25
24.9%
Q3 25
24.5%
41.3%
Q2 25
26.4%
40.2%
Q1 25
25.7%
44.0%
Q4 24
24.6%
40.9%
Q3 24
24.0%
42.9%
Q2 24
25.2%
42.7%
Q1 24
24.1%
45.0%
Operating Margin
CBT
CBT
CIEN
CIEN
Q4 25
15.2%
Q3 25
15.2%
6.0%
Q2 25
18.1%
2.9%
Q1 25
17.3%
7.5%
Q4 24
16.2%
5.3%
Q3 24
15.0%
2.8%
Q2 24
16.9%
-0.4%
Q1 24
15.3%
8.2%
Net Margin
CBT
CBT
CIEN
CIEN
Q4 25
8.6%
Q3 25
4.8%
4.1%
Q2 25
10.9%
0.8%
Q1 25
10.0%
4.2%
Q4 24
9.7%
3.3%
Q3 24
13.7%
1.5%
Q2 24
10.7%
-1.8%
Q1 24
8.2%
4.8%
EPS (diluted)
CBT
CBT
CIEN
CIEN
Q4 25
$1.37
Q3 25
$0.80
$0.35
Q2 25
$1.86
$0.06
Q1 25
$1.69
$0.31
Q4 24
$1.67
$0.26
Q3 24
$2.41
$0.10
Q2 24
$1.94
$-0.12
Q1 24
$1.49
$0.34

Balance Sheet & Financial Strength

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

Metric
CBT
CBT
CIEN
CIEN
Cash + ST InvestmentsLiquidity on hand
$230.0M
$1.3B
Total DebtLower is stronger
Stockholders' EquityBook value
$1.6B
$2.8B
Total Assets
$3.8B
$5.7B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CBT
CBT
CIEN
CIEN
Q4 25
$230.0M
Q3 25
$258.0M
$1.3B
Q2 25
$239.0M
$1.3B
Q1 25
$213.0M
$1.2B
Q4 24
$183.0M
$1.3B
Q3 24
$223.0M
$1.1B
Q2 24
$197.0M
$1.3B
Q1 24
$206.0M
$1.4B
Total Debt
CBT
CBT
CIEN
CIEN
Q4 25
Q3 25
$1.1B
Q2 25
Q1 25
Q4 24
Q3 24
$1.1B
Q2 24
Q1 24
Stockholders' Equity
CBT
CBT
CIEN
CIEN
Q4 25
$1.6B
Q3 25
$1.6B
$2.8B
Q2 25
$1.5B
$2.8B
Q1 25
$1.4B
$2.8B
Q4 24
$1.4B
$2.8B
Q3 24
$1.4B
$2.9B
Q2 24
$1.3B
$2.9B
Q1 24
$1.4B
$2.9B
Total Assets
CBT
CBT
CIEN
CIEN
Q4 25
$3.8B
Q3 25
$3.8B
$5.7B
Q2 25
$3.8B
$5.7B
Q1 25
$3.8B
$5.6B
Q4 24
$3.6B
$5.6B
Q3 24
$3.7B
$5.6B
Q2 24
$3.6B
$5.6B
Q1 24
$3.6B
$5.6B
Debt / Equity
CBT
CBT
CIEN
CIEN
Q4 25
Q3 25
0.70×
Q2 25
Q1 25
Q4 24
Q3 24
0.75×
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
CBT
CBT
CIEN
CIEN
Operating Cash FlowLast quarter
$126.0M
$174.3M
Free Cash FlowOCF − Capex
$57.0M
$134.6M
FCF MarginFCF / Revenue
6.7%
11.0%
Capex IntensityCapex / Revenue
8.1%
3.3%
Cash ConversionOCF / Net Profit
1.73×
3.47×
TTM Free Cash FlowTrailing 4 quarters
$401.0M
$605.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CBT
CBT
CIEN
CIEN
Q4 25
$126.0M
Q3 25
$219.0M
$174.3M
Q2 25
$249.0M
$156.9M
Q1 25
$73.0M
$103.7M
Q4 24
$124.0M
$349.4M
Q3 24
$204.0M
$-159.4M
Q2 24
$207.0M
$58.5M
Q1 24
$176.0M
$266.1M
Free Cash Flow
CBT
CBT
CIEN
CIEN
Q4 25
$57.0M
Q3 25
$155.0M
$134.6M
Q2 25
$188.0M
$128.2M
Q1 25
$1.0M
$76.8M
Q4 24
$47.0M
$265.8M
Q3 24
$112.0M
$-179.0M
Q2 24
$155.0M
$41.6M
Q1 24
$133.0M
$249.5M
FCF Margin
CBT
CBT
CIEN
CIEN
Q4 25
6.7%
Q3 25
17.2%
11.0%
Q2 25
20.4%
11.4%
Q1 25
0.1%
7.2%
Q4 24
4.9%
23.6%
Q3 24
11.2%
-19.0%
Q2 24
15.3%
4.6%
Q1 24
13.1%
24.0%
Capex Intensity
CBT
CBT
CIEN
CIEN
Q4 25
8.1%
Q3 25
7.1%
3.3%
Q2 25
6.6%
2.6%
Q1 25
7.7%
2.5%
Q4 24
8.1%
7.4%
Q3 24
9.2%
2.1%
Q2 24
5.1%
1.9%
Q1 24
4.2%
1.6%
Cash Conversion
CBT
CBT
CIEN
CIEN
Q4 25
1.73×
Q3 25
5.09×
3.47×
Q2 25
2.47×
17.50×
Q1 25
0.78×
2.33×
Q4 24
1.33×
9.44×
Q3 24
1.49×
-11.20×
Q2 24
1.90×
Q1 24
2.10×
5.37×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CBT
CBT

Reinforcement Materials$520.0M61%
Performance Chemicals$300.0M35%
Shipping And Handling$25.0M3%
Other Products And Services$4.0M0%

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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