Ciena Corporation

CIEN

Communication Equipment · Technology

Price

$374.41

-14.40 (-3.70%)

Market Cap

$53.00B

Winston Score

Winston is curious

A decent business — some strong pillars, some weaker.

Share count falling — buybacks

−7.3% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 156.7M (2021) → 145.2M (2025)

Ciena Corporation makes networking equipment and software that helps move large amounts of data across fiber-optic cables. Its main products are optical networking systems and software tools that manage how data flows through networks. Ciena's customers are mostly large telecom companies, cable providers, and cloud computing giants like AT&T, Verizon, and Microsoft.

Ciena earns money by selling hardware, software, and related services to its customers. It operates globally, with significant revenue from North America, but also sells into Europe, Asia, and other regions. The company has a strong position in high-speed optical networking, where deep technical expertise and long customer relationships make it hard for new competitors to break in. The biggest growth driver is rising demand for network capacity as AI workloads and video streaming push telecom and cloud companies to upgrade their infrastructure, though the business can be lumpy since large customers sometimes delay equipment purchases.

Winston Score History

Politician Trades

12 trades / 12mo

9 Congressional buys and 3 sells on CIEN in the last 12 months.

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Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+33.1% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+241.9% YoY

YoY Growth Rate

EPS growth accelerating

R&D Spend

$848M/ year

↑ Rising (+11% vs prior year)

17.8% of revenue

In line with sector average (15%)

Investing heavily in future products and technology

Insider Activity

0.5%ownership

→ Flat

Insiders holding steady — not selling despite ability to

Cash Position

Cash flow positive

$1.1B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

Ciena Corporation grew revenue 33% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Gross Margin

43.5%

Healthy — 43.5% gross margin

Operating Margin

13.4%

Healthy — 13.4% operating margin

ROCE

4.4%

Weak — 4.4% return on capital

ROIC between 0% and 5%. They earn a few cents back per dollar invested in the business.

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Growth

Sales YoY

+26.5%

Fast-growing sales (26.5% YoY)

EPS YoY

+194.1%

Earnings growing fast (194.1% YoY)

Earnings growing 25%+ a year. The compounder zone.

EPS Consistency

6/8 quarters

Earnings grew in most of the last 8 quarters

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Cash Flow

Cash Conversion

406%

Turns 406% of profit into real cash

FCF Margin

12.3%

Converts sales into free cash efficiently (12.3%)

FCF margin between 10% and 20%. Every $100 in sales becomes $10 to $20 in real cash.

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Stability

Debt / Equity

0.56

Conservative — low debt load (0.56)

Interest Cover

4.78x

Adequate interest coverage (4.8x)

Interest coverage between 3 and 8. Profits cover interest several times over.

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Valuation

P/E Ratio (TTM)

232.1x

Expensive — P/E 232.1

P/E over 35. The market is pricing in heavy, sustained growth.

P/E vs Forward

+184.4

GROWING

Earnings expected to grow meaningfully — cheaper on forward P/E (232.1 → 47.8)

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Dividends

Not applicable for this business.

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