831 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 239 funds opening new positions, 246 increasing their positions, 275 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

9.08% more ownership

Funds ownership: 98.67%107.76% (+9.1%)

9% less call options, than puts

Call options by funds: $572M | Put options by funds: $627M

11% less repeat investments, than reductions

Existing positions increased: 246 | Existing positions reduced: 275

Holders
831
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$572M
Puts
$627M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CHP
326
Castle Hook Partners
New York
$2.68M
CIA
327
Concurrent Investment Advisors
Florida
$2.67M
ASN
328
Advisory Services Network
Georgia
$2.67M
FDCDDQ
329
Federation des caisses Desjardins du Quebec
Quebec, Canada
$2.62M
TM
330
Taproot Management
New York
$2.57M
CS
331
Candriam SCA
Luxembourg
$2.56M
VI
332
Vestcor Inc
New Brunswick, Canada
$2.52M
IMC Chicago
333
IMC Chicago
Illinois
$2.5M
AC
334
Allstate Corporation
Illinois
$2.48M
CAU
335
Caxton Associates (UK)
$2.46M
AC
336
Armistice Capital
New York
$2.43M
DF
337
Donoghue Forlines
Massachusetts
$2.42M
GP
338
Geneva Partners
Wisconsin
$2.42M
Jane Street
339
Jane Street
New York
$2.41M
SAM
340
Securian Asset Management
Minnesota
$2.4M
Mackenzie Financial
341
Mackenzie Financial
Ontario, Canada
$2.39M
MFG
342
Merit Financial Group
Georgia
$2.31M
FC
343
FORA Capital
Florida
$2.25M
IMCOOI
344
Investment Management Corp of Ontario (IMCO)
Canada
$2.25M
Truist Financial
345
Truist Financial
North Carolina
$2.24M
BCV
346
Banque Cantonale Vaudoise
Switzerland
$2.23M
MCP
347
Miller Capital Partners
Michigan
$2.21M
CFC
348
Coyle Financial Counsel
Illinois
$2.2M
JF
349
Joule Financial
Kentucky
$2.19M
Janney Montgomery Scott
350
Janney Montgomery Scott
Pennsylvania
$2.17M