834 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 241 funds opening new positions, 248 increasing their positions, 274 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:

9.15% more ownership

Funds ownership: 98.65%107.8% (+9.1%)

9% less call options, than puts

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

9% less repeat investments, than reductions

Existing positions increased: 248 | Existing positions reduced: 274

Holders
834
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
EGM
326
Engineers Gate Manager
New York
$2.7M
CHP
327
Castle Hook Partners
New York
$2.68M
CIA
328
Concurrent Investment Advisors
Florida
$2.67M
ASN
329
Advisory Services Network
Georgia
$2.67M
FDCDDQ
330
Federation des caisses Desjardins du Quebec
Quebec, Canada
$2.62M
TM
331
Taproot Management
New York
$2.57M
CS
332
Candriam SCA
Luxembourg
$2.56M
VI
333
Vestcor Inc
New Brunswick, Canada
$2.52M
IMC Chicago
334
IMC Chicago
Illinois
$2.5M
AC
335
Allstate Corporation
Illinois
$2.48M
CAU
336
Caxton Associates (UK)
$2.46M
AC
337
Armistice Capital
New York
$2.43M
DF
338
Donoghue Forlines
Massachusetts
$2.42M
GP
339
Geneva Partners
Wisconsin
$2.42M
Jane Street
340
Jane Street
New York
$2.41M
SAM
341
Securian Asset Management
Minnesota
$2.4M
Mackenzie Financial
342
Mackenzie Financial
Ontario, Canada
$2.39M
MFG
343
Merit Financial Group
Georgia
$2.31M
FC
344
FORA Capital
Florida
$2.25M
IMCOOI
345
Investment Management Corp of Ontario (IMCO)
Canada
$2.25M
Truist Financial
346
Truist Financial
North Carolina
$2.24M
BCV
347
Banque Cantonale Vaudoise
Switzerland
$2.23M
MCP
348
Miller Capital Partners
Michigan
$2.21M
CFC
349
Coyle Financial Counsel
Illinois
$2.2M
JF
350
Joule Financial
Kentucky
$2.19M