1,072 hedge funds and large institutions have $51.8B invested in Ciena in 2026 Q1 according to their latest regulatory filings, with 318 funds opening new positions, 310 increasing their positions, 364 reducing their positions, and 80 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 call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding

Funds holding:

26% more funds holding in top 10

Funds holding in top 10: 2329 (+6)

13.04% less ownership

Funds ownership: 107.91%94.88% (-13%)

15% less repeat investments, than reductions

Existing positions increased: 310 | Existing positions reduced: 364

Holders
1,072
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
29
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.11B
Puts
$798M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Rafferty Asset Management
201
Rafferty Asset Management
New York
$14.4M
SOMRS
202
State of Michigan Retirement System
Michigan
$14.3M
FLPIM
203
F.L. Putnam Investment Management
Massachusetts
$13.9M
PCM
204
Penserra Capital Management
California
$13.7M
AAIS
205
ABN AMRO Investment Solutions
$13.3M
Mercer Global Advisors
206
Mercer Global Advisors
Colorado
$13.3M
Corient Private Wealth
207
Corient Private Wealth
Florida
$13.2M
MIFH
208
Migdal Insurance & Financial Holdings
Israel
$13.2M
CIBC Asset Management
209
CIBC Asset Management
Ontario, Canada
$13.2M
Vontobel Holding
210
Vontobel Holding
Switzerland
$13.2M
First Manhattan
211
First Manhattan
New York
$13.1M
MIM
212
MetLife Investment Management
New Jersey
$12.8M
COPPSERS
213
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$12.7M
Cetera Investment Advisers
214
Cetera Investment Advisers
Illinois
$12.4M
Westfield Capital Management
215
Westfield Capital Management
Massachusetts
$12.3M
DE
216
Defiance ETFs
New York
$12.3M
II
217
IFM Investors
Australia
$12.2M
DnB Asset Management
218
DnB Asset Management
Norway
$11.7M
FBFS
219
First Business Financial Services
Wisconsin
$11.7M
Retirement Systems of Alabama
220
Retirement Systems of Alabama
Alabama
$11.6M
CRM
221
Cramer Rosenthal McGlynn
Connecticut
$11.6M
Osaic Holdings
222
Osaic Holdings
Arizona
$11.3M
CBU
223
CIBC Bancorp USA
Illinois
$10.9M
BGDI
224
BW Gestao de Investimentos
Brazil
$10.9M
IFM
225
ION Fund Management
$10.7M