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

ARM HOLDINGS PLC is the larger business by last-quarter revenue ($1.2B vs $1.2B, roughly 1.0× CIENA CORP). ARM HOLDINGS PLC runs the higher net margin — 18.0% vs 4.1%, a 13.8% gap on every dollar of revenue. ARM HOLDINGS PLC produced more free cash flow last quarter ($186.0M vs $134.6M). Over the past eight quarters, ARM HOLDINGS PLC's revenue compounded faster (24.1% CAGR vs 3.9%).

Arm Holdings plc is a British semiconductor and software design company headquartered in Cambridge, UK. It designs the Arm CPU architecture and licenses its processor designs and related intellectual property to chipmakers and device manufacturers worldwide. Arm-based chips power the vast majority of smartphones and an increasing share of laptops, data center servers, and embedded devices. The company listed on Nasdaq in September 2023 and remains majority-owned by SoftBank.

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).

ARM vs CIEN — Head-to-Head

Bigger by revenue
ARM
ARM
1.0× larger
ARM
$1.2B
$1.2B
CIEN
Higher net margin
ARM
ARM
13.8% more per $
ARM
18.0%
4.1%
CIEN
More free cash flow
ARM
ARM
$51.4M more FCF
ARM
$186.0M
$134.6M
CIEN
Faster 2-yr revenue CAGR
ARM
ARM
Annualised
ARM
24.1%
3.9%
CIEN

Income Statement — Q3 FY2026 vs Q3 FY2025

Metric
ARM
ARM
CIEN
CIEN
Revenue
$1.2B
$1.2B
Net Profit
$223.0M
$50.3M
Gross Margin
97.6%
41.3%
Operating Margin
14.9%
6.0%
Net Margin
18.0%
4.1%
Revenue YoY
26.3%
Net Profit YoY
-11.5%
EPS (diluted)
$0.21
$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
ARM
ARM
CIEN
CIEN
Q4 25
$1.2B
Q3 25
$1.1B
$1.2B
Q2 25
$1.1B
$1.1B
Q1 25
$1.1B
Q4 24
$983.0M
$1.1B
Q3 24
$844.0M
$942.3M
Q2 24
$939.0M
$910.8M
Q1 24
$1.0B
Net Profit
ARM
ARM
CIEN
CIEN
Q4 25
$223.0M
Q3 25
$238.0M
$50.3M
Q2 25
$130.0M
$9.0M
Q1 25
$44.6M
Q4 24
$252.0M
$37.0M
Q3 24
$107.0M
$14.2M
Q2 24
$223.0M
$-16.8M
Q1 24
$49.5M
Gross Margin
ARM
ARM
CIEN
CIEN
Q4 25
97.6%
Q3 25
97.4%
41.3%
Q2 25
97.2%
40.2%
Q1 25
44.0%
Q4 24
97.2%
40.9%
Q3 24
96.2%
42.9%
Q2 24
96.5%
42.7%
Q1 24
45.0%
Operating Margin
ARM
ARM
CIEN
CIEN
Q4 25
14.9%
Q3 25
14.4%
6.0%
Q2 25
10.8%
2.9%
Q1 25
7.5%
Q4 24
17.8%
5.3%
Q3 24
7.6%
2.8%
Q2 24
19.4%
-0.4%
Q1 24
8.2%
Net Margin
ARM
ARM
CIEN
CIEN
Q4 25
18.0%
Q3 25
21.0%
4.1%
Q2 25
12.3%
0.8%
Q1 25
4.2%
Q4 24
25.6%
3.3%
Q3 24
12.7%
1.5%
Q2 24
23.7%
-1.8%
Q1 24
4.8%
EPS (diluted)
ARM
ARM
CIEN
CIEN
Q4 25
$0.21
Q3 25
$0.22
$0.35
Q2 25
$0.12
$0.06
Q1 25
$0.31
Q4 24
$0.24
$0.26
Q3 24
$0.10
$0.10
Q2 24
$0.21
$-0.12
Q1 24
$0.34

Balance Sheet & Financial Strength

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

Metric
ARM
ARM
CIEN
CIEN
Cash + ST InvestmentsLiquidity on hand
$3.5B
$1.3B
Total DebtLower is stronger
Stockholders' EquityBook value
$7.8B
$2.8B
Total Assets
$10.2B
$5.7B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARM
ARM
CIEN
CIEN
Q4 25
$3.5B
Q3 25
$3.3B
$1.3B
Q2 25
$2.9B
$1.3B
Q1 25
$1.2B
Q4 24
$2.7B
$1.3B
Q3 24
$2.4B
$1.1B
Q2 24
$2.5B
$1.3B
Q1 24
$1.4B
Stockholders' Equity
ARM
ARM
CIEN
CIEN
Q4 25
$7.8B
Q3 25
$7.4B
$2.8B
Q2 25
$7.0B
$2.8B
Q1 25
$2.8B
Q4 24
$6.4B
$2.8B
Q3 24
$6.0B
$2.9B
Q2 24
$5.7B
$2.9B
Q1 24
$2.9B
Total Assets
ARM
ARM
CIEN
CIEN
Q4 25
$10.2B
Q3 25
$9.7B
$5.7B
Q2 25
$9.4B
$5.7B
Q1 25
$5.6B
Q4 24
$8.5B
$5.6B
Q3 24
$8.1B
$5.6B
Q2 24
$7.9B
$5.6B
Q1 24
$5.6B

Cash Flow & Capital Efficiency

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

Metric
ARM
ARM
CIEN
CIEN
Operating Cash FlowLast quarter
$365.0M
$174.3M
Free Cash FlowOCF − Capex
$186.0M
$134.6M
FCF MarginFCF / Revenue
15.0%
11.0%
Capex IntensityCapex / Revenue
14.4%
3.3%
Cash ConversionOCF / Net Profit
1.64×
3.47×
TTM Free Cash FlowTrailing 4 quarters
$1.2B
$605.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARM
ARM
CIEN
CIEN
Q4 25
$365.0M
Q3 25
$567.0M
$174.3M
Q2 25
$332.0M
$156.9M
Q1 25
$103.7M
Q4 24
$423.0M
$349.4M
Q3 24
$6.0M
$-159.4M
Q2 24
$-290.0M
$58.5M
Q1 24
$266.1M
Free Cash Flow
ARM
ARM
CIEN
CIEN
Q4 25
$186.0M
Q3 25
$429.0M
$134.6M
Q2 25
$178.0M
$128.2M
Q1 25
$76.8M
Q4 24
$360.0M
$265.8M
Q3 24
$-47.0M
$-179.0M
Q2 24
$-319.0M
$41.6M
Q1 24
$249.5M
FCF Margin
ARM
ARM
CIEN
CIEN
Q4 25
15.0%
Q3 25
37.8%
11.0%
Q2 25
16.9%
11.4%
Q1 25
7.2%
Q4 24
36.6%
23.6%
Q3 24
-5.6%
-19.0%
Q2 24
-34.0%
4.6%
Q1 24
24.0%
Capex Intensity
ARM
ARM
CIEN
CIEN
Q4 25
14.4%
Q3 25
12.2%
3.3%
Q2 25
14.6%
2.6%
Q1 25
2.5%
Q4 24
6.4%
7.4%
Q3 24
6.3%
2.1%
Q2 24
3.1%
1.9%
Q1 24
1.6%
Cash Conversion
ARM
ARM
CIEN
CIEN
Q4 25
1.64×
Q3 25
2.38×
3.47×
Q2 25
2.55×
17.50×
Q1 25
2.33×
Q4 24
1.68×
9.44×
Q3 24
0.06×
-11.20×
Q2 24
-1.30×
Q1 24
5.37×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ARM
ARM

Royalty$737.0M59%
Transferred Over Time$294.0M24%
Transferred At Point In Time$211.0M17%

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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