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Ciena Corp. (CIEN)

Ciena is a network technology company selling hardware, software and services to network operators, adding network capacity and automating service delivery. Its solutions carry traffic for cloud, voice, video, data and artificial intelligence applications and are used worldwide by cloud providers, service providers and other operators across industry verticals. The four operating segments are Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services. The financial year ends in late October or early November.

Ciena Corp.

Ciena is a network technology company selling hardware, software and services to network operators, adding network capacity and automating service delivery. Its solutions carry traffic for cloud, voice, video, data and artificial intelligence applications and are used worldwide by cloud providers, service providers and other operators across industry verticals. The four operating segments are Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services. The financial year ends in late October or early November.

Who buys

Cloud provider customers, also called web-scale or hyper-scale providers, include internet content providers and providers of internet services and infrastructure such as data centres, cloud compute, software as a service, storage and web hosting; they also buy capacity on service provider submarine and wireline networks, which has shaped the technology service providers adopt. Service provider customers include wireline and wireless carriers, submarine operators and access network providers, some of which now offer managed optical fibre arrangements to cloud providers that want dedicated connectivity without owning the infrastructure, while other customers include cable and multiservice operators, governments, research and education networks and enterprises.

What is driving demand

Networks continue to see rising demand for bandwidth as traffic grows, which the company attributes primarily to artificial intelligence. Training large-scale models requires coupled clusters of graphics processors with immense bandwidth, low latency and power efficiency, which is influencing where data centres sit and spreading training workloads geographically, while deploying models at scale makes inference a primary driver of low-latency, high-capacity investment closer to end users.

Networking Platforms

The segment holds the Optical Networking and Routing and Switching portfolios. Optical products use the company's WaveLogic coherent optical technology and photonics, including lasers, modulators, optical amplifiers and wavelength multiplexers, and address cloud and AI networking, data centre interconnect, long haul, metro and submarine connectivity. Key products are the 6500 Packet-Optical Platform for core, regional, metro and submarine networks, the Waveserver modular interconnect platform, the 6500 Reconfigurable Line System for programmable photonic line systems, and coherent pluggable transceivers for its own systems and third-party equipment; interconnect products from the Nubis acquisition in the fourth quarter of fiscal 2025 join the portfolio. Routing and Switching products run on the company's service-aware IP operating system and cover the 3000 and 5000 families for access and aggregation, business services, wireless fronthaul and backhaul and residential broadband, the 8100 coherent routing platforms combining multi-terabit routing with coherent optical transport, and virtualisation software including a cloud-grade router.

Software and services

Platform Software provides domain control management, analytics, data and planning tools, including Navigator NCS for multi-layer control of routing, switching and optical equipment, along with subscription services, consulting, migration, installation and technical support, while Global Services covers advisory consulting, implementation and systems integration, and maintenance, support, learning and managed services. Blue Planet Automation Software is a cloud native, standards-based portfolio for inventory management, multi-domain and multi-cloud service orchestration, route optimisation and unified assurance and analytics, sold with professional services, consulting and design and technical support, aimed at reducing the cost and complexity of operational support systems and automating service delivery across vendors and domains.

Selling, making and competing

The Global Customer Engagement organisation covers direct and indirect sales, systems engineering and services, and from fiscal 2026 is organised around global cloud and content customers plus the Americas, Europe, the Middle East and Africa, and Asia Pacific, Japan and India, with a global partner programme including distributors alongside it. Manufacturing relies on third-party contract manufacturers with facilities in Canada, Mexico, Thailand, Vietnam and the United States, which also handle design and prototype development, support and shipping, while the company controls supplier selection and commercial terms for the main inputs and uses partners to fulfil and deliver products, an approach it says conserves capital and allows it to adjust to demand without heavy plant investment. Competition is intense and dominated by a few very large multinationals, with Nokia, Huawei, Cisco, Hewlett Packard Enterprise and ZTE named, along with smaller rivals, and Marvell, Credo and Broadcom as the company moves into data centre interconnects; Blue Planet competes with Cisco, Nokia, Amdocs, ServiceNow, Netcracker and Ericsson, and competition turns on price, functionality, incumbency, relationships, time-to-market, technology roadmap, support, product security and lifecycle cost.

People

The workforce numbered 9,080 employees at 1 November 2025, approximately 98% of them full-time, across 39 countries, with approximately 56% in the Americas, 36% in Asia Pacific and 8% in Europe, the Middle East and Africa, most in engineering, operations or sales roles.

From Ciena's annual report on Form 10-K for the year ended 1 November 2025. The filing

Compare with another name What $10,000 in Ciena became

Next results: expected around 10 Dec 2026, last year 11 Dec 2025. Earnings calendar

Latest results

Latest quarterQ3 FY2026ended 1 August 2026 · 10-Q filed 3 September 2026
Revenue
$1.7 billion
+37.0% on the year · +6.4% on the quarter
Q4 FY2024Q3 FY2026
Net income
$266 million
+429.6% on the year · +22.1% on the quarter
Q4 FY2024Q3 FY2026
Diluted EPS
$1.83
+422.9% on the year · +22.8% on the quarter
Q4 FY2024Q3 FY2026

this quarterthe same quarter a year earlierHover a bar for its figure.

Last full yearFY2025ended 1 November 2025 · 10-K filed 12 December 2025
Revenue
$4.8 billion
+18.8% on the year
FY2018FY2025
Net income
$123 million
+46.9% on the year
FY2018FY2025
Diluted EPS
$0.85
+46.6% on the year
FY2018FY2025

this yearthe year beforeHover a bar for its figure.

The years before, in wordsCiena (CIEN) reported revenue of $4.8 billion for fiscal 2025, the year ended 1 November 2025, up 18.8% on the year before. Net income was $123 million and diluted earnings per share $0.85. Revenue was $4.0 billion in fiscal 2024, $4.4 billion in fiscal 2023, $3.6 billion in fiscal 2022 and $3.6 billion in fiscal 2021. Net income in the same years was $84 million, $255 million, $153 million and $500 million. Over the twelve months to 1 August 2026, Ciena reported revenue of $6.0 billion and net income of $654 million. Revenue grew 6.2% a year, compounded, over the five years to fiscal 2025. Ciena had 142 million shares outstanding at the latest filed count. At 1 August 2026 it carried $3.2 billion of debt and $2.4 billion of cash. At the close of 6 November 2026 the market cap of Ciena was $34.5 billion, 54.3 times its earnings over the last twelve months.

Ratios

From the filings

ROE21.4%
ROCE11.8%
Operating margin12.3%
Net margin10.9%
FCF margin13.5%
Interest cover10.6x
Debt to equity1.06x
Cash conversion1.61x
Share count, last 12 months0.4%
Sales CAGR, 3 years9.5%
Profit CAGR, 3 years-6.9%
EPS, TTM$4.48

At the close of 6 November 2026

Price$243.06
Market cap$34.5 billion
Stock P/E54.2x
Price to book11.3x
EV / EBITDA39.8x
Dividend yieldn/a
Market cap / sales5.7x
52-week high$627.00
52-week low$176.45
Price, 1 year20.6%
Price CAGR, 3 years78.1%
Price CAGR, 5 years32.1%

29 ready-made ratios, from FCF yield to net debt to EBITDA, wait on the Formulas page, each with what it tells you. Browse and add them →

Worked from the filed figures; hover a name for the formula.
Read moreThe priced ones use the latest price, the last regular-hours trade on IEX. Debt to equity here stands on long-term debt as Ciena Corp. files it, with lease liabilities counted separately and never inside it. Nothing here is a valuation or a view.
CIENgreeksoup.ai
Daily prices to 6 November 2026, adjusted for splits; from 28 September 2026 each day's price is the last regular-hours trade on IEX.
Read moreData provided for free by IEX. By accessing or using IEX Historical Data, you agree to the IEX Historical Data Terms of Use. Day by day for the last three years; before that one point a week, carrying the week's last close and its average daily volume, so a volume bar means the same thing across the whole series; the bars sit under the price on their own scale, on the right. The moving averages need consecutive days and are drawn from the daily part. P/E is the close over the trailing four quarters' EPS as filed at each filing date, on the current share count; the dashed line is the median over the range shown. Sales and margin are quarterly revenue and the operating margin from the tables above. EV/EBITDA, price to book and market cap to sales use the latest filed balance sheet and share count at each date. Before the quarters on file begin, P/E, price to book and market cap to sales stand on each annual report from the day it was filed. Drawn in your browser; the range and overlay you pick are remembered here only.

Quarterly results

Q4 FY2021 *Q1 FY2022Q2 FY2022Q3 FY2022Q4 FY2022 *Q1 FY2023Q2 FY2023Q3 FY2023Q4 FY2023 *Q1 FY2024Q2 FY2024Q3 FY2024Q4 FY2024 *Q1 FY2025Q2 FY2025Q3 FY2025Q4 FY2025 *Q1 FY2026Q2 FY2026Q3 FY2026
Revenue1,0418449498689711,0571,1331,0681,1291,0389119421,1241,0721,1261,2191,3521,4271,5711,671
Cost of revenue564460547527537601645619643571522538664600673716775802879912
Gross profit477384402341434456488449486467389404460472453503577626692759
Gross margin46%45%42%39%45%43%43%42%43%45%43%43%41%44%40%41%43%44%44%45%
R&D147148159150167182190189189187195189196193215212229221238237
Operating income13760.058.427.177.385.210378.291.384.6-4.026.759.280.732.873.510.5189238301
Operating margin13%7%6%3%8%8%9%7%8%8%-0%3%5%8%3%6%1%13%15%18%
Interest expense7.98.612.012.613.815.923.924.124.223.823.924.425.022.921.722.822.021.320.95.8
Pre-tax income12955.047.314.865.410187.564.370.571.5-16.016.448.068.619.065.82.9181231311
Tax rate20%17%18%29%12%25%34%54%-29%31%n/a13%23%35%53%24%-582%17%6%14%
Net income10345.838.910.557.676.257.729.791.249.5-16.814.237.044.69.050.319.5150218266
Net margin10%5%4%1%6%7%5%3%8%5%-2%2%3%4%1%4%1%11%14%16%
Diluted EPS$0.66$0.29$0.25$0.07$0.39$0.51$0.38$0.20$0.62$0.34-$0.12$0.10$0.25$0.31$0.06$0.35$0.13$1.03$1.49$1.83
Operating cash flow255-54.4107-205-14.5-2662308.719526658.5-159349104157174371228260196
Capital expenditure12.325.819.421.723.930.028.025.422.816.616.919.683.526.928.739.845.473.941.080.0
Free cash flow243-80.287.1-227-38.4-296202-16.717324941.6-17926676.8128135326154219116
Buybacksn/a25082.815513.00.00.057.718438.256.631.012981.287.081.884.580.584.4173
Shares outstanding155m153m151m148m148m149m149m149m145m145m144m144m143m143m142m141m141m141m142m142m
Filing10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q10-K10-Q10-Q10-Q
Each quarter as filed, linked to its filing.
Read more* The fourth quarter is the full year less the first three quarters, because the company files the year and not the quarter on its own. A fourth quarter's EPS, and its diluted share count where shown, are from the company's results press release for that quarter, checked against the company's filed figures or a second data source. Money is in $ million as the company files it, or in $ billion by the switch above the tables; per share figures and the share count are as they are. Free cash flow is operating cash flow less capital expenditure; the effective tax rate is income tax over pre-tax income; margins are the line over revenue. Gross profit is revenue less cost of revenue, and operating income is revenue less the company's own total costs, where the statement does not print those lines. Cash flow lines filed year to date are the difference between two filings. Shares outstanding are at the period end where the balance sheet tags them, otherwise the count on the filing's cover page. A derived fourth-quarter EPS is left blank when a split in the year makes the arithmetic meaningless.

Income statement (profit and loss)

FY2008FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016 †FY2017FY2018 †FY2019FY2020FY2021 †FY2022FY2023FY2024FY2025TTM
Revenue9026531,2371,7421,8342,0832,2882,4462,6012,8023,0943,5723,5323,6213,6334,3874,0154,7706,021
Cost of revenue4523687391,0331,1101,2171,3401,3701,4391,5561,7802,0301,8791,8992,0722,5082,2952,7653,367
Gross profit4512854987097248659481,0761,1621,2461,3151,5421,6531,7221,5601,8791,7202,0052,654
Gross margin50.0%43.6%40.2%40.7%39.5%41.5%41.4%44.0%44.7%44.5%42.5%43.2%46.8%47.6%43.0%42.8%42.8%42.0%44.1%
Research and development175190328380364383401414452475492548530537625751767848925
Operating income21.9-579-322-163-79.8-1.845.7100156215230347487495223358167198739
Operating margin2.4%-88.8%-26.0%-9.4%-4.4%-0.1%2.0%4.1%6.0%7.7%7.4%9.7%13.8%13.7%6.1%8.2%4.1%4.1%12.3%
Interest expense12.97.418.637.939.744.047.151.256.755.955.237.531.330.847.088.097.089.470.0
Pre-tax income41.5-582-332-188-135-80.2-26.723.886.7156149313456463183324120156726
Income tax2.6-1.31.97.79.35.214.012.114.1-1,10649359.894.7-37.429.668.835.932.971.2
Effective tax rate6.4%n/an/an/an/an/an/a50.9%16.3%-708.3%331.7%19.1%20.8%-8.1%16.2%21.3%29.9%21.1%9.8%
Net income38.9-581-334-196-144-85.4-40.611.772.61,262-34525336150015325584.0123654
Net margin4.3%-89.0%-27.0%-11.2%-7.9%-4.1%-1.8%0.5%2.8%45.0%-11.1%7.1%10.2%13.8%4.2%5.8%2.1%2.6%10.9%
Diluted EPS$0.42-$6.37-$3.58-$2.04-$1.45-$0.83-$0.38$0.10$0.51$7.53-$2.49$1.61$2.32$3.19$1.00$1.71$0.58$0.85$4.48
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
From each year's 10-K, linked; TTM is the last four quarters.
Read moreFree cash flow is operating cash flow less capital expenditure; the effective tax rate is income tax over pre-tax income; margins are the line over revenue. Gross profit is revenue less cost of revenue, and operating income is revenue less the company's own total costs, where the statement does not print those lines. Those four are arithmetic on the filed numbers; everything else is as filed. Money is in $ million as the company files it, or in $ billion by the switch above the tables; per share figures and share counts are as they are. † The year as the company last restated it in a later filing; rest on a figure for the one first filed. EPS is as filed.

Revenue by segment FY2009 to FY2025

FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025Share
of the parts, latest year
Networking Platformsn/an/an/an/an/a1,8271,9642,0692,2532,4782,9112,8152,8252,7783,4933,0423,67677.1%
Global Servicesn/an/an/an/an/a37338140738841645145748950152053761412.9%
Platform Software and Servicesn/an/an/an/an/an/an/an/an/an/a1551982302773043583647.6%
Blue Planet Automation Software and Servicesn/an/an/an/an/an/an/an/an/an/a54.662.677.276.669.277.61162.4%
Carrier Ethernet Service Delivery75.1179536354234n/an/an/an/an/an/an/an/an/an/an/an/an/a
Converged Packet Optical2997067349511,187n/an/an/an/an/an/an/an/an/an/an/an/an/a
Packet Networking166112127129223n/an/an/an/an/an/an/an/an/an/an/an/an/a
Software and Services113240345400439n/an/an/an/an/an/an/an/an/an/an/an/an/a
Software and Software-Related Servicesn/an/an/an/an/a88.1100125161201n/an/an/an/an/an/an/an/a
Networking Platforms FY2014 to FY2025Global Services FY2014 to FY2025Platform Software and Services FY2019 to FY2025Blue Planet Automation Software and Services FY2019 to FY2025Software and Software-Related Services FY2014 to FY2018Converged Packet Optical FY2009 to FY2013Software and Services FY2009 to FY2013Carrier Ethernet Service Delivery FY2009 to FY2013Packet Networking FY2009 to FY2013
1,237FY20102,083FY20132,601FY20163,572FY20193,633FY20224,770FY2025

$ million; hover a block for its figure and share; a part named with years is one the company split its revenue into only then

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where the parts add up to the revenue above. Fiscal years are labelled by the year they end in.

Profit by segment FY2020 to FY2025

The net income each segment reports. Costs Ciena does not charge to a segment are left out, so the segments can add up to more than the company's own net income.

FY2020FY2021FY2022FY2023FY2024FY2025Margin
FY2025
Networking Platforms82785157282459477421.1%
Global Services20319921120420421434.8%
Platform Software and Services10613717519324023564.6%
Blue Planet Automation Software and Services-12.4-0.7-22.4-23.3-2.431.227.0%
Networking PlatformsGlobal ServicesPlatform Software and ServicesBlue Planet Automation Software and Services
1,123FY20201,185FY2021936FY20221,198FY20231,036FY20241,254FY2025

$ million; the figure over a bar is all the segments together; a year a segment lost money, it hangs below the line. Hover a block for its profit, sales and margin.

FY2025Share of salesShare of profit
Networking Platforms77%62%
Global Services13%17%
Platform Software and Services8%19%
Blue Planet Automation Software and Services2%2%

Each column adds to 100%. A segment with a bigger share of the profit than of the sales makes more on each dollar it sells.

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where every segment with sales that year has a net income figure. A margin is a segment's net income over its own sales.

Revenue by product or service FY2016 to FY2025

FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025Share
of the parts, latest year
Optical Networkingn/an/an/an/an/a2,5542,3802,9872,6433,24668.1%
Routing and Switchingn/an/an/an/a2672723985063994309.0%
Platform Software and Servicesn/an/an/a1551982302773043583647.6%
Maintenance, Support, and Learningn/an/an/an/an/an/an/a2883033176.7%
Implementationn/an/an/an/an/an/an/a1811842465.2%
Blue Planet Automation Software and Servicesn/an/an/a54.662.677.276.669.277.61162.4%
Advisory and Enablementn/an/an/an/an/an/an/a50.749.850.51.1%
Consulting and Network Designn/an/an/a41.335.333.750.7n/an/an/an/a
Converged Packet Opticaln/an/an/a2,5632,548n/an/an/an/an/an/a
Installation and Deploymentn/an/an/a148152171157n/an/an/an/a
Maintenance Support and Trainingn/an/an/a261269283292n/an/an/an/a
Packet Networkingn/an/an/a348n/an/an/an/an/an/an/a
Products2,1172,3192,565n/an/an/an/an/an/an/an/a
Services483483529n/an/an/an/an/an/an/an/a
Optical Networking FY2021 to FY2025Routing and Switching FY2020 to FY2025Platform Software and Services FY2019 to FY2025Maintenance, Support, and Learning FY2023 to FY2025Implementation FY2023 to FY2025Blue Planet Automation Software and Services FY2019 to FY2025Advisory and Enablement FY2023 to FY2025Maintenance Support and Training FY2019 to FY2022Installation and Deployment FY2019 to FY2022Consulting and Network Design FY2019 to FY2022Converged Packet Optical FY2019 to FY2020Packet Networking FY2019Products FY2016 to FY2018Services FY2016 to FY2018
2,802FY20173,572FY20193,621FY20214,387FY20234,770FY2025

$ million; hover a block for its figure and share; a part named with years is one the company split its revenue into only then

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where the parts add up to the revenue above. Fiscal years are labelled by the year they end in.

Revenue by region FY2009 to FY2025

FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025Share
of the parts, latest year
Americasn/an/an/an/an/an/an/a1,6891,7361,8862,3512,4692,5262,6373,1102,9523,60675.6%
EMEAn/an/an/an/an/an/a40039440446556759167055564364973215.3%
APACn/an/an/an/an/an/a2463234976035024714254416334144319.0%
CALAn/an/an/an/an/an/a201195164140153n/an/an/an/an/an/an/a
International151492811861865970n/an/an/an/an/an/an/an/an/an/an/an/a
North American/an/an/an/an/an/a1,598n/an/an/an/an/an/an/an/an/an/an/a
United Kingdom81.8n/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/a
United States4197449319731,2171,318n/an/an/an/an/an/an/an/an/an/an/an/a
Americas FY2016 to FY2025EMEA FY2015 to FY2025APAC FY2015 to FY2025CALA FY2015 to FY2019North America FY2015United States FY2009 to FY2014International FY2009 to FY2014United Kingdom FY2009
1,237FY20102,083FY20132,601FY20163,572FY20193,633FY20224,770FY2025

$ million; hover a block for its figure and share; a part named with years is one the company split its revenue into only then

From the company's 10-Ks, in its own words (latest 10-K).
Read moreEach year's figures come from the most recent 10-K that includes that year. A year is shown only where the parts add up to the revenue above. Fiscal years are labelled by the year they end in.

Cash flow

FY2008FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016 †FY2017FY2018 †FY2019FY2020FY2021 †FY2022FY2023FY2024FY2025TTM
Operating cash flow1187.4-229-90.510744.789.8262290235229413494542-1681685158061,055
Capital expenditure30.024.151.252.448.143.848.262.110794.667.662.682.779.590.8106137141240
Free cash flow87.6-16.7-280-14359.00.941.6200182140162351411462-25962.1378665814
Free cash flow margin9.7%-2.6%-22.7%-8.2%3.2%0.0%1.8%8.2%7.0%5.0%5.2%9.8%11.6%12.8%-7.1%1.4%9.4%13.9%13.5%
Cash from investing91.2-74.2-199-68.6-12.0-131-106-43.1-296-61.4-19.424.1-220-90.7-101-383-306-241-529
Cash from financing-5501.163013.27.9-207259-8.1-4.2-311-99.2-279-87.2-117-133229-285-406868
Depreciation and amortisation50.946.8142130111105102125125110100.0109117120128130122130148
Share-based compensation31.434.435.637.932.437.742.955.352.048.453.059.767.884.3105130156185212
Buybacksn/an/an/an/an/an/an/an/a0.00.011115074.591.3501242255335422
Diluted shares, weighted111m91m93m96m99m102m106m120m151m170m144m158m156m157m152m149m146m145m146m
Shares outstanding at period endn/a92m94m97m101m104m107m136m140m143m154m154m155m155m148m145m143m141m142m
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
Cash paid in the year, from the cash flow statement.
Read moreThe dividend per share is as declared. Diluted shares are the weighted average for the year; a falling count is the buybacks net of issuance. TTM sums the last four quarters; the share counts are the latest quarter's.

Balance sheet

FY2008FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016 †FY2017FY2018 †FY2019FY2020FY2021 †FY2022FY2023FY2024FY2025TTM
Funded by
Shareholders' equity99945615913.9-89.0-82.7-69.66217662,1361,9292,1732,5103,0202,7132,8482,8162,7293,057
Debtn/an/a1,4431,4421,4421,2121,4651,2721,2549366936876836771,0681,5551,5451,5363,230
Operating lease liabilitiesn/an/an/an/an/an/an/an/an/an/an/an/a61.441.642.433.325.132.538.6
Finance lease liabilitiesn/an/an/an/an/an/an/an/an/an/an/an/a61.662.653.248.243.538.6n/a
Other liabilitiesn/a1,0495164955286736778038548791,1341,0338651,0641,1931,1171,2121,5281,672
Total liabilities and equityn/a1,5042,1181,9511,8811,8032,0732,6952,8743,9523,7573,8934,1814,8655,0705,6015,6415,8657,997
Owned
Fixed assetsn/a61.9120123124120127192288308292287n/an/an/an/an/a387492
Goodwilln/a0.00.00.0n/an/a0.0256267267298298311312328445445521513
Intangible assetsn/a60.842633225718612920314710114811396.665.369.5206165224189
Investmentsn/a5710.050.350.1140190230365329208120233252189239397273398
Cash and equivalents5514866895426423465877917786417459041,0891,4239941,0119351,0922,446
Receivablesn/a1183444183454895195515766227877257198859211,0049099761,234
Inventoryn/a88.12622302602492551912112672633453443749471,051820826872
Other assetsn/a1182772572022732672812411,4161,0161,1021,3881,5551,6211,6471,9701,5651,854
Total assetsn/a1,5042,1181,9511,8811,8032,0732,6952,8743,9523,7573,8934,1814,8655,0705,6015,6415,8657,997
Filing10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K10-K
At the fiscal year end; the TTM column is the latest quarter end.
Read moreBoth totals are the company's own. Other liabilities is the filed total less the rows above it: payables, deferred revenue, taxes, borrowings the rows above do not carry and the rest; other assets is the same on the other side. Investments add the current and non-current lines as filed. Debt is the company's own stated total where it files one, otherwise its long-term debt with the current maturities, never parts added together. A row is left blank in a year where the lines shown overlap and the remainder would fall below nil.

Compounded growth

10 years5 years3 yearsTTM
Sales growth, compounded6.9%6.2%9.5%32.6%
Profit growth, compounded26.6%-19.3%-6.9%364.5%
Return on equity, average11.5%7.7%5.5%4.5%
Yearly growth, compounded; TTM is the last four quarters against the four before.
Read moreReturn on equity is net income over shareholders' equity at each year end, averaged over the window (the TTM column is the latest year alone); equity is the parent's shareholders' equity as tagged in the 10-K. Arithmetic on filed numbers, nothing forecast.

Questions

When does Ciena report its next earnings?

Ciena is expected to report its next results around 10 Dec 2026, the same weekday a year after it reported the same quarter last year on 11 Dec 2025. No day set by the company is on record yet.

What was Ciena's revenue in fiscal 2025?

Ciena (CIEN) reported revenue of $4.8 billion for fiscal 2025, the year ended 1 November 2025, up 18.8% on the year before.

How much did Ciena earn in fiscal 2025?

Net income was $123 million for fiscal 2025, and diluted earnings per share $0.85.

What is Ciena's P/E ratio?

At the close of 6 November 2026, Ciena traded at 54.3 times its earnings over the twelve months to 1 August 2026.

What is Ciena's market cap?

The market cap of Ciena was $34.5 billion at the close of 6 November 2026.

How much debt does Ciena have?

At 1 August 2026 Ciena carried $3.2 billion of debt and $2.4 billion of cash.

Peers: Electronic Equipment

CompanyMarket capP/EROEOp. marginSales growth
TTM
Debt to equityDiv. yield
Nokia Corporation NOK *$42.7 billion57.113.1%4.4%3.5%0.162.0%
STMicroelectronics N.V. STM *$37.1 billion231.690.9%1.5%-11.1%0.120.9%
Ubiquiti Inc. UI$35.9 billion33.4763.7%36.9%29.4%0.000.6%
United Microelectronics Corporation UMC *$34.9 billion27.6111.0%18.5%2.3%0.17n/a
Telefonaktiebolaget LM Ericsson ERIC *$34.6 billion11.8526.0%16.3%-4.5%0.302.8%
Ciena Corp. CIEN$34.5 billion54.2521.4%12.3%32.6%1.06n/a
Astera Labs, Inc. ALAB$33.3 billion75.8523.1%25.5%115.2%0.00n/a
Microchip Technology Inc. MCHP$31.8 billion44.2012.6%20.9%33.0%0.833.1%
Teledyne Technologies Inc. TDY$28.6 billion28.279.2%20.0%8.6%0.18n/a
Fabrinet FN$11.7 billion24.6719.1%10.0%43.0%0.03n/a
Clearfield, Inc. CLFD$389 millionn/a-2.9%-0.2%-1.4%0.00n/a
Adtran Holdings, Inc. ADTN$329 millionn/a-20.9%0.0%10.1%2.32n/a
All 130 in Electronic Equipment
CompanyMarket capP/EROEOp. marginSales growth
TTM
Debt to equityDiv. yield
NVIDIA Corp. NVDA$4.50 trillion23.6084.2%65.2%83.4%0.150.1%
Taiwan Semiconductor Manufacturing Company Limited TSM *$1.95 trillion37.3631.7%50.8%31.6%0.190.8%
Broadcom Inc. AVGO$1.40 trillion37.4738.4%48.0%48.7%0.610.9%
Micron Technology Inc. MU$780.6 billion9.3061.4%74.6%256.3%0.040.1%
Advanced Micro Devices Inc. AMD$734.2 billion97.3211.1%17.7%41.9%0.10n/a
Intel Corp. INTC$299.0 billionn/a-10.5%2.9%12.1%0.44n/a
Applied Materials Inc. AMAT$264.0 billion28.6836.2%29.6%7.8%0.260.6%
Texas Instruments Inc. TXN$252.9 billion35.9037.1%40.8%20.3%0.712.1%
Arm Holdings plc ARM *$185.7 billion205.3410.9%18.3%22.8%0.00n/a
Amphenol Corp. APH$184.2 billion32.4334.6%27.7%57.6%1.040.7%
Qualcomm Inc. QCOM$177.6 billion13.0544.8%20.1%-2.6%0.502.2%
Analog Devices Inc. ADI$175.9 billion43.0712.3%35.5%33.6%0.271.2%
Marvell Technology, Inc. MRVL$123.7 billion46.5614.2%16.5%30.6%0.270.2%
Motorola Solutions, Inc. MSI$85.2 billion41.4067.9%24.2%11.4%3.290.9%
Northrop Grumman Corp. NOC$74.6 billion16.5924.2%10.6%6.5%0.811.8%
Vertiv Holdings Co. VRT$70.4 billion34.1738.1%20.1%35.3%0.530.1%
ASE Technology Holding Co., Ltd. ASX *$70.3 billion58.8911.7%8.0%8.4%0.741.1%
NXP Semiconductors N.V. NXPI$62.6 billion19.5126.7%33.0%14.6%0.911.6%
Monolithic Power Systems, Inc. MPWR$58.0 billion65.6023.9%29.5%40.5%0.000.6%
Garmin Ltd. GRMN$55.1 billion27.4221.1%28.8%13.6%0.001.4%
Lumentum Holdings Inc. LITE$48.7 billionn/a-143.9%23.5%103.2%0.31n/a
L3Harris Technologies, Inc. LHX$48.4 billion24.2610.1%10.7%7.3%0.541.9%
Nokia Corporation NOK *$42.7 billion57.113.1%4.4%3.5%0.162.0%
STMicroelectronics N.V. STM *$37.1 billion231.690.9%1.5%-11.1%0.120.9%
Ubiquiti Inc. UI$35.9 billion33.4763.7%36.9%29.4%0.000.6%
United Microelectronics Corporation UMC *$34.9 billion27.6111.0%18.5%2.3%0.17n/a
Telefonaktiebolaget LM Ericsson ERIC *$34.6 billion11.8526.0%16.3%-4.5%0.302.8%
Ciena Corp. CIEN$34.5 billion54.2521.4%12.3%32.6%1.06n/a
Astera Labs, Inc. ALAB$33.3 billion75.8523.1%25.5%115.2%0.00n/a
Microchip Technology Inc. MCHP$31.8 billion44.2012.6%20.9%33.0%0.833.1%
Teledyne Technologies Inc. TDY$28.6 billion28.279.2%20.0%8.6%0.18n/a
Celestica Inc. CLS$26.1 billion19.5520.0%8.3%61.6%0.13n/a
Flex Ltd. FLEX$25.8 billion25.1817.9%5.1%17.5%0.90n/a
Jabil Inc. JBL$25.0 billion24.4364.6%4.7%20.6%2.090.1%
ON Semiconductor Corp. ON$24.7 billion36.879.1%12.3%2.9%0.60n/a
Qnity Electronics, Inc. Q$24.4 billion43.967.4%n/an/a0.530.1%
Hubbell Inc. HUBB$22.7 billion25.1822.1%20.1%16.0%1.251.3%
Credo Technology Group Holding Ltd. CRDO$22.6 billion42.7719.7%31.7%165.1%0.00n/a
First Solar, Inc. FSLR$21.6 billion11.6417.1%37.7%-0.7%0.01n/a
Cerebras Systems Inc. CBRS$21.3 billionn/an/an/an/a0.10n/a
Macom Technology Solutions Holdings, Inc. MTSI$16.1 billion67.7915.6%18.1%28.4%0.22n/a
Nextpower Inc. NXT$15.8 billion26.4323.2%19.0%13.7%0.00n/a
Lattice Semiconductor Corp. LSCC$14.9 billion328.113.2%9.1%63.4%0.61n/a
Sitime Corp. SITM$12.6 billion443.470.8%0.9%142.6%0.38n/a
Skyworks Solutions, Inc. SWKS$12.4 billion42.585.1%7.6%0.1%0.093.5%
Fabrinet FN$11.7 billion24.6719.1%10.0%43.0%0.03n/a
Semtech Corp. SMTC$9.6 billion68.4420.6%8.0%17.8%0.66n/a
Leonardo Drs, Inc. DRS$9.1 billion25.0512.6%10.8%8.9%0.061.1%
Amkor Technology, Inc. AMKR$8.1 billion13.2312.9%9.5%15.7%0.521.0%
Rambus Inc. RMBS$8.0 billion30.6718.8%36.3%17.3%0.00n/a
Advanced Energy Industries Inc. AEIS$7.9 billion28.3118.2%16.0%31.7%0.800.2%
Silicon Laboratories Inc. SLAB$7.4 billionn/a-3.6%-5.1%21.7%0.00n/a
Sanmina Corp. SANM$7.2 billion24.0911.2%4.2%58.6%0.79n/a
TTM Technologies Inc. TTMI$7.0 billion26.5013.1%11.1%37.6%0.80n/a
Viavi Solutions Inc. VIAV$7.0 billion118.625.1%10.6%47.4%0.49n/a
Formfactor Inc. FORM$6.4 billion37.0414.7%18.3%29.1%0.01n/a
Esco Technologies Inc. ESE$6.0 billion18.9819.5%14.2%24.0%0.050.1%
Cirrus Logic, Inc. CRUS$5.7 billion14.3518.9%22.5%5.1%0.00n/a
Impinj Inc. PI$5.3 billionn/a-3.1%-0.7%7.7%0.62n/a
Allegro Microsystems, Inc. ALGM$5.2 billion187.673.1%7.5%27.9%0.28n/a
Plexus Corp. PLXS$5.1 billionn/an/an/an/a0.18n/a
Synaptics Inc. SYNA$4.6 billionn/a-53.2%-4.7%8.1%0.91n/a
Planet Labs PBC PL$4.6 billionn/a-63.8%-27.2%44.1%0.79n/a
Applied Optoelectronics, Inc. AAOI$4.5 billionn/a-1.5%-6.8%77.2%0.10n/a
Maxlinear, Inc. MXL$4.5 billionn/a-5.5%-0.9%56.0%0.31n/a
Mercury Systems Inc. MRCY$4.4 billionn/a-2.0%0.0%7.9%0.29n/a
Universal Display Corp. OLED$4.0 billion17.9013.8%34.6%-1.9%n/a2.2%
Enphase Energy, Inc. ENPH$3.8 billion42.497.3%4.2%-19.9%0.46n/a
Vishay Intertechnology Inc. VSH$3.7 billion37.563.2%5.2%17.6%0.251.7%
Diodes Inc. DIOD$3.5 billion31.145.9%7.3%24.2%0.21n/a
Kulicke & Soffa Industries Inc. KLIC$3.3 billion29.4912.7%13.2%44.4%0.001.3%
OSI Systems Inc. OSIS$3.1 billion21.0620.3%12.2%2.9%1.28n/a
Ondas Inc. ONDS$2.8 billionn/a10.6%-140.4%979.3%0.00n/a
IPG Photonics Corp. IPGP$2.8 billion69.601.9%1.9%14.8%0.00n/a
Ambarella Inc. AMBA$2.6 billionn/a-9.1%-14.9%20.0%0.00n/a
AXT Inc. AXTI$2.6 billion1,944.500.5%3.1%45.8%0.09n/a
Penguin Solutions, Inc. PENG$2.5 billion16.0734.7%9.6%26.5%1.51n/a
Intuitive Machines, Inc. LUNR$2.4 billionn/an/a-27.5%116.5%n/an/a
Power Integrations Inc. POWI$2.3 billion51.016.4%8.4%2.3%0.002.1%
Nlight, Inc. LASR$2.2 billionn/a-2.9%-6.0%39.6%0.00n/a
Benchmark Electronics Inc. BHE$2.2 billion38.945.0%3.5%12.9%0.141.1%
Ultra Clean Holdings, Inc. UCTT$1.9 billion72.113.7%4.3%15.8%0.87n/a
Vicor Corp. VICR$1.7 billion38.5519.9%24.9%27.0%0.00n/a
Solaredge Technologies, Inc. SEDG$1.7 billionn/a-54.0%-9.2%29.3%0.79n/a
Shoals Technologies Group, Inc. SHLS$1.7 billion43.835.9%11.2%49.2%0.26n/a
CTS Corp. CTS$1.7 billion22.8912.6%17.0%7.4%0.090.3%
Photronics Inc. PLAB$1.6 billion9.6412.9%22.5%1.2%0.00n/a
Navitas Semiconductor Corp. NVTS$1.6 billionn/a-42.9%-323.5%-28.6%0.00n/a
Nextnav Inc. NN$1.4 billionn/a-33.4%-1,900.4%-36.5%0.00n/a
Wolfspeed, Inc. WOLF$1.3 billionn/a-69.6%-80.3%-18.0%2.09n/a
Ichor Holdings, Ltd. ICHR$1.2 billion620.000.4%1.7%15.2%0.13n/a
Napco Security Technologies, Inc. NSSC$1.1 billion24.6022.1%22.7%8.7%0.002.0%
Harmonic Inc. HLIT$1.0 billionn/an/an/an/a0.09n/a
Ambiq Micro, Inc. AMBQ$930 millionn/a-9.1%-43.3%n/a0.00n/a
Array Technologies, Inc. ARRY$901 millionn/an/a-5.1%1.2%n/an/a
Arteris, Inc. AIP$884 millionn/a-63.3%-46.2%41.0%n/an/a
BlackSky Technology Inc. BKSY$876 millionn/a-14.0%-22.8%29.9%0.96n/a
Varex Imaging Corp. VREX$778 million35.484.5%8.3%5.3%0.70n/a
Alpha & Omega Semiconductor Ltd. AOSL$712 millionn/a-5.8%-7.1%-3.2%0.000.0%
T1 Energy Inc. TE$662 millionn/a-190.1%-22.4%427.0%2.730.0%
Unusual Machines, Inc. UMAC$594 millionn/a-9.0%-76.1%425.2%0.00n/a
Kopin Corp. KOPN$547 million75.7511.5%-22.9%-7.1%0.00n/a
Vishay Precision Group, Inc. VPG$541 millionn/a-1.0%1.1%11.6%0.05n/a
Lightpath Technologies Inc. LPTH$494 millionn/a-13.7%-27.4%92.8%0.00n/a
Kimball Electronics, Inc. KE$462 million22.933.5%4.4%-1.5%0.40n/a
indie Semiconductor, Inc. INDI$436 millionn/a-52.5%-59.3%13.9%1.50n/a
Clearfield, Inc. CLFD$389 millionn/a-2.9%-0.2%-1.4%0.00n/a
Methode Electronics Inc. MEI$384 millionn/a-5.5%0.4%1.4%0.471.9%
NVE Corp. NVEC$368 million20.5730.8%61.6%24.1%0.005.3%
Adtran Holdings, Inc. ADTN$329 millionn/a-20.9%0.0%10.1%2.32n/a
Everspin Technologies Inc. MRAM$284 millionn/a-3.6%-15.5%20.9%0.010.0%
Turtle Beach Corp. TBCH$273 millionn/a-0.6%3.2%-13.0%0.93n/a
Nano Dimension Ltd. NNDM$262 millionn/a-34.4%-117.3%n/a0.04n/a
M-tron Industries, Inc. MPTI$261 million22.078.0%18.5%11.8%0.00n/a
BK Technologies Corp. BKTI$251 million19.5726.2%17.9%15.7%0.00n/a
Aviat Networks, Inc. AVNW$226 million93.110.9%4.4%1.2%0.36n/a
Vuzix Corp. VUZI$160 millionn/a-145.3%-521.9%6.8%0.00n/a
Quicklogic Corp. QUIK$147 millionn/an/an/an/a0.24n/a
Espey MFG & Electronics Corp. ESP$141 million12.0218.5%25.1%4.9%0.002.1%
Aeluma, Inc. ALMU$135 millionn/a-16.1%-228.3%-4.4%0.00n/a
Atomera Inc. ATOM$117 millionn/a-69.6%-10,969.4%476.3%0.00n/a
GSI Technology Inc. GSIT$116 millionn/a-22.8%-100.8%2.9%0.00n/a
GCT Semiconductor Holding, Inc. GCTS$106 millionn/an/a-852.0%-32.8%n/an/a
Magnachip Semiconductor Corp. MX$91 millionn/a-12.3%-24.2%-12.8%0.19n/a
R F Industries Ltd. RFIL$72 million30.146.3%4.6%13.0%0.15n/a
Kulr Technology Group, Inc. KULR$68 millionn/a-140.9%-270.6%24.6%0.28n/a
Inseego Corp. INSG$64 millionn/an/a-10.4%-3.6%n/an/a
AmpliTech Group, Inc. AMPG$59 millionn/a-17.1%-34.7%24.2%0.00n/a
Tigo Energy, Inc. TYGO$57 million4.3527.3%-3.7%15.3%0.05n/a
LGL Group Inc. LGL$43 millionn/a-0.5%-21.8%9.3%0.00n/a
3 companies share its SEC industry code (Telephone & Telegraph Apparatus); the rest are the names nearest in size in its wider industry, Electronic Equipment, one of the Fama-French 48 industries, a published grouping of SEC industry codes.
Read moreBy market capitalisation; a click on a heading sorts by it, largest first, and a second click turns it round. Each figure is the same arithmetic as the ratio box above, on each company's own filings and latest close; a name marked * is a foreign company that files once a year, on its latest fiscal year.

The public record on CIEN

Dividendsno dividend in its filings for fiscal 2008 onward
Filings16 in twelve months: 8 current reports (8-K), about 4 results of operations; 2 other events; 1 material agreement; 1 new financial obligation; 1 unregistered sale of equity
Planned insider sales53 Form 144 notices in twelve months, $97.6 million; latest 15 October 2026
Options tapeput/call 1.11 by open interest at the 6 November 2026 close; the straddle prices a 11.7% move to 13 November 2026
13F holders1,229 funds reported a position for the quarter to 30 June 2026; largest FMR LLC
Insider trading94 sales and 0 purchases on Form 4 in twelve months
Congress2 House trades disclosed in six months
Short interest4.0 million shares short, 1.16 days to cover at 15 October 2026
Documentsthe 10-K, the 10-Qs, the proxy and 4 earnings press releases, each linked

Filings

FilingPeriodFiledWhere
10-Q1 August 20263 September 2026EDGAR
10-Q2 May 20264 June 2026EDGAR
10-Q31 January 20265 March 2026EDGAR
10-K1 November 202512 December 2025EDGAR
10-Q2 August 20254 September 2025EDGAR
10-Q3 May 20255 June 2025EDGAR
10-Q1 February 202512 March 2025EDGAR
10-K2 November 202420 December 2024EDGAR
10-Q27 July 20244 September 2024EDGAR
10-Q27 April 20246 June 2024EDGAR

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