What is Ciena's PEG ratio?

Ciena (CIEN) reported PEG ratio of 0.5× in Q1 2026.

What does PEG ratio mean?

The P/E ratio adjusted for how fast earnings are growing.

How do you interpret PEG ratio?

Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.

How does PEG ratio compare across companies?

A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.

Ciena CIEN PEG ratio

PEG ratio at other companies

Cisco Systems, Inc.CSCO

1.4×—

Keysight TechnologiesKEYS

12.1×+11.3×

CelesticaCLS

0.3×-0.1×

Credo Technology Group Holding LtdCRDO

0.1×—

GLW

CorningGLW

0.2×—

Arista NetworksANET

1.8×+0.8×

Other financials

Income statement

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Revenue$1.6B+39.5%

Gross profit$691.6M+52.7%

Operating income$237.9M+624%

Net income$218.2M+2,333%

EPS (diluted)$1.49+2,383%

Balance sheet

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Cash & equivalents$1.0B+10.0%

Total debt$1.6B-0.8%

Total equity$2.9B+4.2%

Total assets$6.0B+6.7%

Cash flow

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Operating cash flow$259.7M+65.5%

CapEx$41.0M+42.8%

Free cash flow$218.7M+70.6%

Valuation

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Market cap$61.82B+716%

Enterprise value$62.35B+668%

P/E141×+68.8×

P/S11.1×+9.3×

Profitability

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Gross margin43%+1.1pp

Operating margin9.2%+4.5pp

Net margin7.9%+5.4pp

Returns & leverage

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Return on equity15.5%+11.8pp

Debt / equity0.5×0.0×

Current ratio2.7×-0.7×

Where this comes from

Calculated from Ciena’s reported figures.

market cap/net income=0.5×

Based on the most recent quarter.

The official record: Ciena’s 10-Q, filed June 4, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Ciena's PEG ratio?: Ciena (CIEN) reported PEG ratio of 0.5× in Q1 2026.
What does PEG ratio mean?: The P/E ratio adjusted for how fast earnings are growing.
How do you interpret PEG ratio?: Around 1.0 is often cited as fairly valued for the growth on offer; below 1.0 can flag a growth bargain. Highly sensitive to the growth input and meaningless when growth is zero or negative.
How does PEG ratio compare across companies?: A rough cross-company growth-adjusted screen; treat as directional given its sensitivity to the (trailing) growth basis.