840 hedge funds and large institutions have $32.1B invested in Ciena in 2025 Q4 according to their latest regulatory filings, with 247 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:

9.2% more ownership

Funds ownership: 98.65%107.85% (+9.2%)

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
840
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
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
BBA
326
Baader Bank Aktiengesellschaft
Germany
$2.75M
PFA
327
Peak Financial Advisors
Colorado
$2.71M
EGM
328
Engineers Gate Manager
New York
$2.7M
CHP
329
Castle Hook Partners
New York
$2.68M
CIA
330
Concurrent Investment Advisors
Florida
$2.67M
ASN
331
Advisory Services Network
Georgia
$2.67M
FDCDDQ
332
Federation des caisses Desjardins du Quebec
Quebec, Canada
$2.62M
TM
333
Taproot Management
New York
$2.57M
CS
334
Candriam SCA
Luxembourg
$2.56M
VI
335
Vestcor Inc
New Brunswick, Canada
$2.52M
IMC Chicago
336
IMC Chicago
Illinois
$2.5M
AC
337
Allstate Corporation
Illinois
$2.48M
CAU
338
Caxton Associates (UK)
$2.46M
AC
339
Armistice Capital
New York
$2.43M
DF
340
Donoghue Forlines
Massachusetts
$2.42M
GP
341
Geneva Partners
Wisconsin
$2.42M
Jane Street
342
Jane Street
New York
$2.41M
SAM
343
Securian Asset Management
Minnesota
$2.4M
Mackenzie Financial
344
Mackenzie Financial
Ontario, Canada
$2.39M
MFG
345
Merit Financial Group
Georgia
$2.31M
FC
346
FORA Capital
Florida
$2.25M
IMCOOI
347
Investment Management Corp of Ontario (IMCO)
Canada
$2.25M
Truist Financial
348
Truist Financial
North Carolina
$2.24M
BCV
349
Banque Cantonale Vaudoise
Switzerland
$2.23M
MCP
350
Miller Capital Partners
Michigan
$2.21M