Stocks
Ciena
Networking gear for the bandwidth AI traffic demands.
CIEN key data
Latest reported results
Q3 FY2026 · period ended · filed
Revenue & earnings trend
Last 8 reported quarters, oldest to most recent. Bar height is revenue; the figure below each bar is net income (red = net loss).
Dividends & corporate actions
- Split — 1-for-7 on .
About Ciena
Ciena is a leader in high-speed optical connectivity, providing systems, components, and automation software for telecom providers and enterprises, such as data centers, to enable long-distance connectivity. The company operates through four primary business segments: networking platforms, platform software and services, Blue Planet automation software, and global services. While telecom carriers remain important customers, cloud providers and hyperscalers now drive a significant portion of the business. To meet the demands of AI data centers, customers are adopting Ciena's WaveLogic 6 platform, the first to support 1.6 terabits-per-second capacity.
Ciena websiteCIEN price chart
Daily open, high, low and close with volume.
Quotes are delayed at least 15 minutes.
CIEN technical indicators
Computed daily from CIEN's own price history — not third-party ratings. Technical analysis describes past price behaviour; it is information, not investment advice.
Fibonacci retracement
Based on CIEN's high/low over the same history as the chart above.
CIEN vs. sector peers
Price and trailing P/E ratio next to CIEN's closest covered peers.
| Company | Price | P/E (TTM) |
|---|---|---|
| Ciena (CIEN) | $358.43 | 80.0 |
| Arista Networks (ANET) | $205.70 | 64.9 |
| Coherent Corp (COHR) | $290.61 | 70.5 |
Quotes are delayed at least 15 minutes. Peers come from Polygon's related-company mapping, limited to symbols this desk covers.
CIEN frequently asked questions
What is the CIEN stock price today?
Ciena (CIEN) last closed at $358.43 on September 24, 2026. Quotes are delayed at least 15 minutes.
What is the 52-week range for CIEN?
Over the past 52 weeks CIEN has traded between $133.67 and $637.51.
What is Ciena's market cap?
Ciena has a market capitalisation of about $50.47 billion.
Which exchange is CIEN listed on?
CIEN trades on NYSE, in the Telephone & Telegraph Apparatus industry.
What is CIEN's P/E ratio?
Based on trailing twelve-month diluted earnings of $4.48 per share and a $358.43 share price, CIEN trades on a price-to-earnings ratio of about 80.0.
What was Ciena's most recent revenue?
Ciena reported revenue of $1.67 billion for Q3 FY2026, with net income of $266.42 million.
What is Ciena's return on equity?
Ciena generated a trailing twelve-month return on equity of about 21.4%.
When did CIEN last split?
Ciena last executed a 1-for-7 stock split on September 25, 2006.
Is CIEN overbought or oversold?
CIEN's 14-day relative strength index (RSI) is 48.6, which is neutral on the standard 30/70 scale. RSI measures the speed of recent price moves, not a price target — this is not investment advice.
Is CIEN in an uptrend or downtrend?
CIEN's 50-day moving average is currently below its 200-day moving average — a Death Cross (bearish long-term trend) in classic technical-analysis terms. Moving-average crossovers describe past price behaviour, not a forecast.
CIEN sectors
Others in Semiconductors
Related stocks
Coverage is for information only and is not investment advice. Stock prices can move quickly and past performance does not guarantee future results.
Quotes are delayed at least 15 minutes. Last updated .