--- title: "Ciena: Competitors & Industry Structure" description: "Ciena compared with companies that share its SEC industry classification: revenue, growth and margins from SEC filings, and how the peer group is chosen." canonical: https://www.getswoopr.com/stocks/companies/ciena/competitors/ source: "Swoopr Investment: https://www.getswoopr.com" --- # Ciena: Competitors & Industry Structure ## Direct Answer SEC EDGAR classifies Ciena under SIC code 3661 (Telephone & Telegraph Apparatus). Among Swoopr's S&P 500 Equal Weight companies, 6 others share that classification; by latest reported revenue, Ciena ranks 1 of 7. A filing classification is a starting point: a company's real competitors depend on its segments, which its 10-K describes. ## How Does Ciena Compare With Its Peers? | Company | Revenue (latest FY) | Revenue growth | Operating margin | Net margin | | --- | --- | --- | --- | --- | | **Ciena (CIEN)** | $4.8 billion FY2025 | 18.8% | 4.1% | 2.6% | | [ADTRAN Holdings Inc. (ADTN)](https://www.getswoopr.com/stocks/companies/adtran-holdings-inc/) | $1.1 billion FY2025 | 17.5% | -1.4% | -4.2% | | [Clearfield Inc. (CLFD)](https://www.getswoopr.com/stocks/companies/clearfield-inc/) | $150 million FY2025 | 19.6% | 1.4% | -5.4% | | [DNA X Inc. (SONM)](https://www.getswoopr.com/stocks/companies/dna-x-inc/) | $58 million FY2024 | -37.7% | -5.3% | -57.7% | | [Franklin Wireless Corp. (FKWL)](https://www.getswoopr.com/stocks/companies/franklin-wireless-corp/) | $46 million FY2025 | 49.6% | -6.2% | -0.5% | | [FiEE Inc (FIEE)](https://www.getswoopr.com/stocks/companies/fiee-inc/) | $6 million FY2025 | 867.9% | 25.0% | 17.3% | | [ClearOne Inc. (CLRO)](https://www.getswoopr.com/stocks/companies/clearone-inc/) | $0 FY2025 | n/a | n/a | n/a | Revenue growth compares each company's latest fiscal year with the one before. Fiscal years do not always end on the same date, so treat close comparisons with care. ![Bar chart of operating margin for Ciena and 5 peers: Ciena (CIEN) 4.1%, ADTRAN Holdings Inc. (ADTN) -1.4%, Clearfield Inc. (CLFD) 1.4%, DNA X Inc. (SONM) -5.3%, Franklin Wireless Corp. (FKWL) -6.2%, FiEE Inc (FIEE) 25.0%.](https://www.getswoopr.com/images/charts/ciena-competitors-peer-margins.webp) *Operating margin of Ciena against companies sharing its SEC industry classification, from the table above. Select the chart to open it full size.* ## How Does Ciena Rank Among All SEC Filers in Its Industry Code? 6 companies with annual reports in Swoopr's SEC dataset share SIC code 3661 (Telephone & Telegraph Apparatus), a wider group than the S&P 500 Equal Weight companies above. Ranks run from 1 (highest) and use each company's latest fiscal year, in U.S. dollars. | Measure | Ciena | Median of filers | Rank | | --- | --- | --- | --- | | Revenue | $4.8 billion | $104 million | 1 of 6 | | Revenue growth | 18.8% | 19.2% | 4 of 6 | | Operating margin | 4.1% | -0.0% | 2 of 6 | | Net margin | 2.6% | -2.4% | 2 of 6 | A SIC code reflects the filer's main business as the SEC records it, so the group mixes companies of very different size; the median is a better guide than the average, and a rank near the top by revenue says nothing about quality. ## Where These Numbers Come From Every figure on this page is a value Ciena reported in its own SEC filings, read from the SEC's XBRL data (accession 0001628280-25-056698 for fiscal year 2025). Ratios are computed from those reported values. Figures were retrieved on October 7, 2026; a later amendment or a new annual report can change them, and the filing itself always takes precedence over this summary. Each fiscal year is labeled by the calendar year in which it ended, so a company that names the same period differently in its own filings (many retailers whose year ends in January) may use another label. A year is left out of the table when the SEC data set holds no value for it. A figure shown as "Not reported" means the company did not file a value under the standard tag Swoopr reads, not that the amount was zero. This page is educational and describes reported history only; it is not a forecast or a recommendation. ## Frequently Asked Questions ### Who are Ciena's competitors? Companies sharing Ciena's SEC classification (SIC code 3661 (Telephone & Telegraph Apparatus)) include ADTRAN Holdings Inc. (ADTN), Clearfield Inc. (CLFD), DNA X Inc. (SONM), Franklin Wireless Corp. (FKWL), FiEE Inc (FIEE). Its 10-K names the competitors it considers most relevant. ### How does Ciena compare with its peers on margins? Ciena's fiscal 2025 operating margin was 4.1%, against a peer median of -1.4%. ### How are these peers chosen? By the SEC Standard Industrial Classification code each company files under, within Swoopr's S&P 500 Equal Weight company set, falling back to the two-digit major group when fewer than two companies share the exact code. Classification codes are broad, so read the peer list as a screen, not a verdict. ### How does Ciena rank among all companies in its SEC industry? Among 6 SEC filers under SIC code 3661, Ciena ranks 1 by latest revenue, and 2 of 6 by operating margin (4.1% against a median of -0.0%). ## References - [SEC EDGAR: CIENA CORP Form 10-K filed December 12, 2025](https://www.sec.gov/Archives/edgar/data/936395/000162828025056698/cien-20251101.htm) - [SEC EDGAR: CIENA CORP annual and quarterly filings](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=936395&type=10-K) - [SEC: EDGAR application programming interfaces (XBRL frames and submissions data)](https://www.sec.gov/search-filings/edgar-application-programming-interfaces) ## Related Pages - [Ciena company dossier](https://www.getswoopr.com/stocks/companies/ciena/) - [Ciena financial metrics](https://www.getswoopr.com/stocks/companies/ciena/metrics/) - [Ciena financial risk indicators](https://www.getswoopr.com/stocks/companies/ciena/risks/) - [Ciena peer comparison](https://www.getswoopr.com/stocks/companies/ciena/competitors/) - [Ciena business model and revenue mix](https://www.getswoopr.com/stocks/companies/ciena/business-model/) - [Fundamental analysis guides](https://www.getswoopr.com/learn/fundamental-analysis/) **[Swoopr Editorial Team](https://www.getswoopr.com/authors/swoopr-editorial-team/)** Swoopr's editorial team produces independent investment education content reviewed for accuracy and clarity. 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