678 hedge funds and large institutions have $20.3B invested in Ciena in 2025 Q3 according to their latest regulatory filings, with 180 funds opening new positions, 175 increasing their positions, 255 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

21% more funds holding

Funds holding: 560678 (+118)

1.13% less ownership

Funds ownership: 99.76%98.63% (-1.1%)

31% less repeat investments, than reductions

Existing positions increased: 175 | Existing positions reduced: 255

Holders
678
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$419M
Puts
$220M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
PCA
176
Providence Capital Advisors
North Carolina
$6.62M
TRSOTSOK
177
Teachers Retirement System of the State of Kentucky
Kentucky
$6.57M
PA
178
Paralel Advisors
Colorado
$6.45M
Zurich Cantonal Bank
179
Zurich Cantonal Bank
Switzerland
$6.37M
AG
180
Algert Global
California
$6.21M
TI
181
Tidal Investments
Wisconsin
$6.2M
ASRS
182
Arizona State Retirement System
Arizona
$6.09M
Credit Agricole
183
Credit Agricole
France
$6.06M
HCA
184
Harbour Capital Advisors
Virginia
$5.99M
Comerica Bank
185
Comerica Bank
Texas
$5.98M
Handelsbanken Fonder
186
Handelsbanken Fonder
Sweden
$5.98M
Victory Capital Management
187
Victory Capital Management
Texas
$5.95M
HIM
188
Hillsdale Investment Management
Ontario, Canada
$5.93M
AAP
189
Arax Advisory Partners
Colorado
$5.89M
LSERS
190
Louisiana State Employees Retirement System
Louisiana
$5.74M
SC
191
Savant Capital
Illinois
$5.7M
IC
192
IEQ Capital
California
$5.69M
AC
193
Amitell Capital
Singapore
$5.67M
PAS
194
Park Avenue Securities
New York
$5.58M
SFM
195
Systematic Financial Management
New Jersey
$5.54M
GGHC
196
Gilder Gagnon Howe & Co
New York
$5.52M
AAIS
197
ABN AMRO Investment Solutions
$5.48M
NAM
198
Nissay Asset Management
Japan
$5.47M
Teacher Retirement System of Texas
199
Teacher Retirement System of Texas
Texas
$5.43M
COPPSERS
200
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$5.29M