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NYSE: CIEN
Ciena (CIEN) stock, explained like you're 5
Ciena trades on the New York Stock Exchange under the ticker CIEN. It is a large cap company in the telecommunications equipment industry, part of the utilities sector, with a market value of about 63.8 billion dollars.
- Ticker
- CIEN
- Exchange
- New York Stock Exchange
- Sector
- Utilities
- Industry
- Telecommunications Equipment
- Size
- Large cap, about 63.8 billion dollars
Is Ciena a small, medium or large cap company?
Yes. Ciena is a large cap stock. Its market cap, which is the total value of all its shares, is about 63.8 billion dollars.
Here is how you can tell. Multiply the share price by the number of shares to get the market cap, then compare it to the usual sizes. Micro cap is under 300 million dollars, small cap is 300 million to 2 billion, mid cap is 2 to 10 billion, large cap is 10 billion and up, and mega cap is over 200 billion. Market caps move every day with the share price, so treat the number as a recent snapshot.
How Ciena makes money
- Delivering electricity, gas or water to homes and businesses.
- Rates approved by regulators.
- Growing clean energy projects.
What moves CIEN stock
- Interest rates, since utilities carry a lot of debt.
- Decisions by regulators on prices.
- Weather and demand for power.
In the news lately
- What Would It Take For Ciena Stock To Do It Again? (Trefis)
- CIEN Oct 2026 407.500 call (CIEN261016C00407500) Stock Historical Prices & Data (Yahoo! Finance Canada)
- Why Ciena (CIEN) Stock Is Down Today | CIEN Stock News (Quiver Quantitative)
- Curated Wealth Partners LLC Sells 159,858 Shares of Ciena Corporation $CIEN (MarketBeat)
- An officer plans to sell 14,760 compensation shares in Ciena (CIEN). (Stock Titan)
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Questions about Ciena stock
What does Ciena do?
Ciena trades on the New York Stock Exchange under the ticker CIEN. It is a large cap company in the telecommunications equipment industry, part of the utilities sector, with a market value of about 63.8 billion dollars.
What is the ticker symbol for Ciena?
Ciena trades under the ticker CIEN on the New York Stock Exchange.
What is Ciena's market cap?
Ciena is a large cap stock with a market cap of about 63.8 billion dollars.
How does Ciena make money?
Delivering electricity, gas or water to homes and businesses. Rates approved by regulators. Growing clean energy projects.
What moves CIEN stock?
Interest rates, since utilities carry a lot of debt. Decisions by regulators on prices. Weather and demand for power.
How can I follow CIEN stock every day?
Add CIEN to your watchlist on Metric Finance. We post a free brief every trading day at 5 PM ET that explains what happened to the stocks you follow, in simple words.
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Educational information, not financial advice. This guide explains the business in general terms and does not include live prices.