675 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, 172 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: 559675 (+116)

1.14% less ownership

Funds ownership: 99.76%98.62% (-1.1%)

33% less repeat investments, than reductions

Existing positions increased: 172 | Existing positions reduced: 255

Holders
675
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
PL
101
Perpetual Ltd
Australia
$22.6M
SSA
102
Schonfeld Strategic Advisors
New York
$22.5M
TD Asset Management
103
TD Asset Management
Ontario, Canada
$21M
New York State Teachers Retirement System (NYSTRS)
104
New York State Teachers Retirement System (NYSTRS)
New York
$20.9M
CCM
105
CloudAlpha Capital Management
Hong Kong
$20.9M
LI
106
LMCG Investments
Massachusetts
$20.8M
Macquarie Group
107
Macquarie Group
Australia
$20.4M
BHCM
108
Brevan Howard Capital Management
Jersey
$20.1M
California State Teachers Retirement System (CalSTRS)
109
California State Teachers Retirement System (CalSTRS)
California
$19.4M
Twin Tree Management
110
Twin Tree Management
Texas
$19.2M
State Board of Administration of Florida Retirement System
111
State Board of Administration of Florida Retirement System
Florida
$18.4M
PCM
112
Peregrine Capital Management
Minnesota
$18M
DGM
113
Delta Global Management
New York
$17.9M
GFM
114
GF Fund Management
China
$16.7M
BNP Paribas Financial Markets
115
BNP Paribas Financial Markets
France
$16.4M
GIM
116
Glenmede Investment Management
Pennsylvania
$16.4M
PCM
117
Penserra Capital Management
California
$16.4M
New York State Common Retirement Fund
118
New York State Common Retirement Fund
New York
$16.3M
Impax Asset Management Group
119
Impax Asset Management Group
United Kingdom
$16.1M
LP
120
LMR Partners
United Kingdom
$15.5M
LPL Financial
121
LPL Financial
California
$15.3M
Canada Life
122
Canada Life
Manitoba, Canada
$15.3M
Prudential Financial
123
Prudential Financial
New Jersey
$15.2M
BCM
124
Bienville Capital Management
New York
$14.5M
FSCM
125
Front Street Capital Management
Montana
$14.3M