Ciena Corporation (CIEN) Stock Overview
NYSE · Technology · Communication Equipment
About Ciena Corporation
Ciena Corporation, a network technology company, provides hardware, software, and services for various network operators in the Americas, Europe, the Middle East, Africa, the Asia Pacific, Japan, and India. It operates through Networking Platforms, Platform Software and Services, Blue Planet…
Source: Yahoo Finance
Sector & Industry
Ciena Corporation operates in the Technology sector, within the Communication Equipment industry group. It is listed on the NYSE exchange.
Ciena Corporation at a Glance
| Company | Ciena Corporation |
| Ticker | CIEN |
| Exchange | NYSE |
| Currency | USD |
| Price | $374.41 |
| Market cap | $53.00B |
| P/E ratio (trailing) | 124.80 |
| EPS (trailing) | $3.00 |
| 52-week high | $637.51 |
| 52-week low | $83.20 |
| Dividend yield | — |
| Sector | Technology |
| Industry | Communication Equipment |
| Employees | 8,898 |
| Country | United States |
Investing Essentials
As an Amazon Associate we earn from qualifying purchases. Links below are affiliate links.
Benjamin Graham's classic on value investing — the book Warren Buffett calls the best ever written on the subject.
Check Price →Peter Lynch on how everyday investors can spot winners before the professionals do.
Check Price →Frequently Asked Questions
What is Ciena Corporation's P/E ratio?
Ciena Corporation (CIEN) has a trailing P/E ratio of 124.80 as of our latest data snapshot.
What is Ciena Corporation's market cap?
Ciena Corporation's market capitalisation is $53.00B based on the most recent snapshot.
What is CIEN's 52-week range?
Over the past 52 weeks, CIEN has traded between $83.20 and $637.51.
Need to convert currencies or units alongside this data? Our quick conversion tools are always on hand.
Many readers keep a stock investing journal to log positions and theses alongside pages like this one, and a dedicated financial calculator to hand for quick valuation maths.
Recommended Reading & Tools
Morgan Housel's short lessons on behaviour, luck and long-term wealth.
Check Price →A dedicated finance calculator for TVM, NPV and rate-of-return work.
Check Price →Burton Malkiel's evidence-based guide to markets, indexing and long-term strategy.
Check Price →Related Technology Stocks
Data snapshot: 18 July 2026 (Yahoo Finance) · Page last built: