Ciena Corp (CIEN)
NYSE · Technology · Communication Equipment
Ciena Corp is a Technology company with a market capitalization of $66.69B and a trailing P/E ratio of 156.5.
5-Year Price History
Latest Annual Financials · FY ending October 31, 2025
Recent Quarterly Earnings (EPS)
| Quarter | Reported | Actual EPS | Estimate | Surprise |
|---|---|---|---|---|
| Q1 2026 | March 5, 2026 | $1.03 | $1.16 | -11.2% |
| Q4 2025 | December 11, 2025 | $0.13 | $0.76 | -82.9% |
| Q3 2025 | September 4, 2025 | $0.35 | $0.53 | -34.0% |
| Q2 2025 | June 5, 2025 | $0.06 | $0.52 | -88.1% |
| Q1 2025 | March 11, 2025 | $0.31 | $0.41 | -24.4% |
| Q4 2024 | December 12, 2024 | $0.25 | $0.65 | -61.5% |
Short Interest
FINRA-reported short interest for semi-monthly settlement dates, published about nine business days after each settlement. Share counts are adjusted to the current split basis.
| Settlement | Shares Short | % of Shares Out | Days to Cover | Change |
|---|---|---|---|---|
| July 15, 2026 | 3,993,188 | 2.73% | 2.4 | +3.6% |
| June 30, 2026 | 3,853,439 | 2.63% | 1.0 | -19.1% |
| June 15, 2026 | 4,760,443 | 3.25% | 1.1 | +5.7% |
| May 29, 2026 | 4,505,490 | 3.09% | 2.2 | -0.5% |
| May 15, 2026 | 4,529,072 | 3.11% | 2.4 | +3.8% |
| April 30, 2026 | 4,365,229 | 2.99% | 2.0 | -7.0% |
| April 15, 2026 | 4,693,751 | 3.22% | 1.6 | -21.5% |
| March 31, 2026 | 5,977,920 | 4.10% | 1.7 | +18.5% |
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Frequently Asked Questions
What is Ciena Corp's market cap?
As of August 13, 2026, Ciena Corp (CIEN) has a market capitalization of $66.69B.
What is Ciena Corp's P/E ratio?
Ciena Corp trades at a trailing price-to-earnings (P/E) ratio of 156.5. Its forward P/E is 56.8.
Does Ciena Corp pay a dividend?
Ciena Corp does not currently pay a dividend.
What sector is CIEN in?
Ciena Corp is in the Technology sector, specifically the Communication Equipment industry.
What is Ciena Corp's short interest?
As of the July 15, 2026 FINRA settlement, 3,993,188 CIEN shares were sold short, or 2.73% of shares outstanding. Days to cover: 2.4. FINRA publishes short interest twice a month, about nine business days after each settlement date.
What was Ciena Corp's revenue?
In its latest reported fiscal year (ending October 31, 2025), Ciena Corp reported revenue of $4.77B and net income of $123.34M.
Ask your own questions about CIEN
Try mrmarket.ai freeData as of August 13, 2026. Figures are sourced from company filings and market data and may be delayed or revised. For informational purposes only — not investment advice.