681 hedge funds and large institutions have $20.3B invested in Ciena in 2025 Q3 according to their latest regulatory filings, with 179 funds opening new positions, 175 increasing their positions, 258 reducing their positions, and 49 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: 562681 (+119)

1.11% less ownership

Funds ownership: 99.77%98.65% (-1.1%)

32% less repeat investments, than reductions

Existing positions increased: 175 | Existing positions reduced: 258

Holders
681
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
DCM
251
Dilation Capital Management
New York
$2.86M
VPIM
252
Vanguard Personalized Indexing Management
California
$2.82M
CMF
253
Counterpoint Mutual Funds
California
$2.82M
BCI
254
Brinker Capital Investments
Pennsylvania
$2.79M
SMTF
255
Sphera Management Technology Funds
Israel
$2.77M
P
256
&Partners
Tennessee
$2.76M
VCM
257
Voleon Capital Management
California
$2.75M
JG
258
Jain Global
New York
$2.74M
GC
259
Guggenheim Capital
Illinois
$2.74M
Commonwealth Equity Services
260
Commonwealth Equity Services
Massachusetts
$2.72M
William Blair & Company
261
William Blair & Company
Illinois
$2.7M
SAM
262
Strategy Asset Managers
California
$2.67M
OQS
263
Occudo Quantitative Strategies
Florida
$2.65M
BC
264
Burney Company
Virginia
$2.61M
Pathstone Holdings
265
Pathstone Holdings
New Jersey
$2.51M
PP
266
Pacifica Partners
Canada
$2.48M
MML Investors Services
267
MML Investors Services
Massachusetts
$2.45M
JGUA
268
John G. Ullman & Associates
New York
$2.43M
X
269
Xponance
Pennsylvania
$2.37M
KAS
270
Kestra Advisory Services
Texas
$2.36M
RIL
271
Rothschild Investment LLC
Illinois
$2.32M
FC
272
FORA Capital
Florida
$2.31M
BEI
273
Benjamin Edwards Inc
Missouri
$2.25M
WLG
274
Williamson Legacy Group
Indiana
$2.23M
Axa
275
Axa
France
$2.22M