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NYSE:CIEN
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Ciena Corporation (CIEN)

NYSE • CIEN • US1717793095

272.24Last close
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ORTEX Data Highlights

As of Nov 3, 2026, ORTEX estimates 2.9% of free float is sold short, 1.3 days to cover, cost to borrow 0.3%.

Market Cap

38.6b USD | # 520 in US

Volume

2.72m shares | 1.01b USD

Shares Outstanding

141.81m

Free Float Shares

99.55% | 141.17m

DB:CIE1|
XTRA:CIE1|
LSE:0HYA|
BIT:1CIEN|
WBAG:CIEN|
SET:CIEN03

News

CIEN key data

Ciena Corporation (NYSE: CIEN) has a market capitalization of $38.61B. Last close $272.24 (as of 2026-11-05); 52-week range $168.22 to $637.51. ORTEX data as of 2026-11-03: short interest is 2.85% of free float, 1.3 days to cover and the average cost to borrow is 0.3%.

Latest on CIEN

  • Aug 26, 2026CIEN Options Fear Peaks Again as Shorts Cover Into Earnings
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