Ciena (CIEN) reported R&D of $237.91M in Q1 2026.

How has Ciena's R&D changed year-over-year?

Ciena's R&D increased by 10.7% year-over-year, from $214.87M to $237.91M.

What is the long-term trend for Ciena's R&D?

Over 4 years (2021 to 2025), Ciena's R&D has grown at a 12.1% compound annual growth rate (CAGR), from $536.67M to $848.33M.

Costs of research activities to discover new knowledge and development activities to translate research into new or improved products, services, processes, or technologies.

Ciena CIEN R&D

R&D at other companies

Cisco Systems, Inc.CSCO

$2.38B+1.8%

ADTRAN Holdings, Inc.ADTN

$50.78M+3.9%

CalixCALX

$54.65M+24.3%

Ribbon Communications Inc.RBBN

$44.45M+2.0%

CoherentCOHR

$185.99M+23.4%

CelesticaCLS

$41.2M+134%

Segments

By segment

See full

Networking Platforms$189.5M+11.7%

Platform Software and Services$18.43M+1.3%

Blue Planet Automation Software and Services$10.23M+14.7%

Global Services$1.16M+9.8%

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

See full

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+70.5%

Valuation

See full

Market cap$68.61B+551%

Enterprise value$69.14B+519%

P/E156.5×+56.0×

P/S12.3×+9.8×

Profitability

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Gross margin43%+1.1pp

Operating margin9.2%+4.5pp

Net margin7.9%+5.4pp

FCF margin15%—

Returns & leverage

See full

Return on equity15.5%+11.8pp

Debt / equity0.5×0.0×

Current ratio2.7×-0.7×

Where this comes from

Reported directly by Ciena in its filing.

Tagged under the XBRL concept us-gaap:ResearchAndDevelopmentExpense.

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 R&D?: Ciena (CIEN) reported R&D of $237.91M in Q1 2026.
How has Ciena's R&D changed year-over-year?: Ciena's R&D increased by 10.7% year-over-year, from $214.87M to $237.91M.
What is the long-term trend for Ciena's R&D?: Over 4 years (2021 to 2025), Ciena's R&D has grown at a 12.1% compound annual growth rate (CAGR), from $536.67M to $848.33M.
What does R&D mean?: Costs of research activities to discover new knowledge and development activities to translate research into new or improved products, services, processes, or technologies.