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CI

Ciena Corporation (CIEN) short interest & options flow

NYSE

Ciena closed the week at $354.92, still 31% below the Street's mean price target, but the analyst picture took a fresh turn on Wednesday when Bernstein initiated coverage with an Outperform rating and a $440 target. The initiation matters in context. A week ago, this note documented Evercore ISI's upgrade to Outperform and a target lift to $550, the most aggressive call since the…

Latest pulse25 Sept 2026

CIEN cost to borrow surges 196% in one week to 0.42%, highest volatility in months amid tight lending conditions.

$272.24-9.28% 1d-25.05% 1w-30.43% 1mClose: 4 Nov 2026
Short interest % of float
Low
Live SI on ORTEX →
Cost to borrow
Low and dropping
Live CTB on ORTEX →
Availability
High
Live availability on ORTEX →
Market cap
$38.61B
Next earnings
10 Dec 2026
See the full picture on ORTEX →Live short interest, options flow, signals, 13F filings, and more.

Key data as of 5 Nov 2026

ORTEX chart of Ciena Corporation (CIEN) share price and short interest (% of free float), six months to November 4, 2026

Latest signals on CIEN

  • Cost to Borrow

    CIEN cost to borrow surges 196% in one week to 0.42%, highest volatility in months amid tight lending conditions.

  • Short Interest

    CIEN short interest plummets 20.5% in one week to 2.12% of float, lowest level in six weeks, as stock rebounds 4.2% on August 25 ahead of September 3 earnings.

CIEN news and analysis

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ConfluenceCIEN

CIEN Options Fear Peaks Again as Shorts Cover Into Earnings

Options traders have pushed CIEN's put/call ratio to 1.00 — its highest z-score in over a month — just days after short sellers made their sharpest single-day exit in weeks. The two signals are pulling in opposite…

1 min read

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