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NYSE · Live ET

CIEN (CIEN)

320.26-2.38 (-0.74%)USD · · delayed · updates about every minute

Key statistics

Previous close
322.64
Day range
313.45 – 327.40
52-week low
159.56
52-week high
637.51
Volume
—
Type
—
52-WEEK RANGE POSITION

CIEN news

Yahoo! Finance CanadaCIEN Oct 2026 360.000 put (CIEN261030P00360000) Interactive Stock Chart - Yahoo Finance13h agoYahoo! Finance CanadaCIEN Oct 2026 422.500 call (CIEN261030C00422500) Stock Price, News, Quote & History15h agoYahoo! Finance CanadaCIEN Nov 2026 320.000 put (CIEN261113P00320000) Stock Price, News, Quote & History1d agoYahoo Finance AustraliaCIEN Oct 2026 495.000 call (CIEN261023C00495000) stock price, news, quote and history1d agoYahoo! Finance CanadaCIEN Oct 2026 337.500 call (CIEN261023C00337500) Interactive Stock Chart - Yahoo Finance1d agoZacks Investment ResearchCiena vs. Nokia: Which Optical Networking Stock is the Better Buy?1d agoTradingViewCiena vs. Nokia: Which Optical Networking Stock is the Better Buy?1d agoYahoo Finance UKCIEN Oct 2026 510.000 call (CIEN261023C00510000) interactive stock chart1d ago

Learn to invest

The Psychology of Money
Morgan Housel · Beginner
The Little Book of Common Sense Investing
John C. Bogle · Beginner
The Intelligent Investor
Benjamin Graham · Intermediate