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295 hedge funds and large institutions have $2.97B invested in Calix in 2025 Q2 according to their latest regulatory filings, with 66 funds opening new positions, 99 increasing their positions, 101 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

347% more call options, than puts

Call options by funds: $11.8M | Put options by funds: $2.64M

120% more first-time investments, than exits

New positions opened: 66 | Existing positions closed: 30

49% more capital invested

Capital invested by funds: $2B → $2.97B (+$972M)

13% more funds holding

Funds holding: 260295 (+35)

1.47% more ownership

Funds ownership: 84.81%86.28% (+1.5%)

2% less repeat investments, than reductions

Existing positions increased: 99 | Existing positions reduced: 101

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
295
Holders Change
+35
Holders Change %
+13.46%
% of All Funds
3.88%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
66
Increased
99
Reduced
101
Closed
30
Calls
$11.8M
Puts
$2.64M
Net Calls
+$9.15M
Net Calls Change
+$10.6M
Name Holding Trade Value Shares
Change
Change in
Stake
DCM
76
Driehaus Capital Management
Illinois
$4.94M +$3.97M +92,855 New
CIS
77
Connors Investor Services
Pennsylvania
$4.68M -$623K -14,570 -14%
EI
78
EAM Investors
California
$4.57M +$3.67M +85,845 New
Walleye Capital
79
Walleye Capital
New York
$4.38M +$3.52M +82,293 New
DIM
80
DC Investments Management
Virginia
$4.08M -$6.53M -152,730 -67%
State of Wisconsin Investment Board
81
State of Wisconsin Investment Board
Wisconsin
$3.94M -$1.28M -29,901 -29%
Susquehanna International Group
82
Susquehanna International Group
Pennsylvania
$3.86M -$50.8K -1,188 -2%
TIM
83
Thompson Investment Management
Wisconsin
$3.71M -$873K -20,400 -23%
DFCM
84
Dark Forest Capital Management
Puerto Rico
$3.66M +$2.13M +49,784 +261%
NRD
85
Nebula Research & Development
New York
$3.66M +$474K +11,081 +19%
BFM
86
Boothbay Fund Management
New York
$3.65M +$371K +8,669 +14%
BHCM
87
Brevan Howard Capital Management
Jersey
$3.28M +$2.22M +51,933 +537%
New York State Teachers Retirement System (NYSTRS)
88
New York State Teachers Retirement System (NYSTRS)
New York
$3.27M +$4.28K +100 +0.2%
Canada Life
89
Canada Life
Manitoba, Canada
$3.25M -$11.3K -265 -0.4%
Qube Research & Technologies (QRT)
90
Qube Research & Technologies (QRT)
United Kingdom
$3.01M +$450K +10,517 +23%
Jane Street
91
Jane Street
New York
$2.98M +$2.4M +56,039 New
AG
92
Algert Global
California
$2.97M +$2.39M +55,920 New
California State Teachers Retirement System (CalSTRS)
93
California State Teachers Retirement System (CalSTRS)
California
$2.91M +$23.7K +554 +1%
DSCM
94
Divisadero Street Capital Management
Florida
$2.82M
Allianz Asset Management
95
Allianz Asset Management
Germany
$2.71M +$2.18M +50,970 New
T. Rowe Price Associates
96
T. Rowe Price Associates
Maryland
$2.68M +$146K +3,404 +7%
HSBC Holdings
97
HSBC Holdings
United Kingdom
$2.51M +$1.56M +36,423 +348%
Fidelity Investments
98
Fidelity Investments
Massachusetts
$2.3M +$604K +14,126 +49%
AQR Capital Management
99
AQR Capital Management
Connecticut
$2.28M -$55.2K -1,290 -3%
Thrivent Financial for Lutherans
100
Thrivent Financial for Lutherans
Minnesota
$2.26M -$39.9K -932 -2%

CALX Hedge Fund Activity: Q2 2025 in Review

295 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Calix (CALX) for Q2 2025, worth a combined $2.97B — up 49% from $2B a quarter earlier.

Buyers outnumbered sellers: 66 funds opened new CALX positions and 30 closed out — a net gain of 36 holders — while 99 added to existing stakes and 101 trimmed.

The largest buyer was Lord, Abbett & Co, opening a new position worth an estimated $34.8M. The largest seller was AllianceBernstein, cutting an estimated $49.6M.

  • 295 institutional investors held Calix (CALX) as of Q2 2025, up from 260 in Q1 2025.
  • Funds reported $2.97B of Calix stock for Q2 2025, up 49% quarter-over-quarter.
  • 66 funds opened new Calix positions in Q2 2025 and 30 closed out, a net change of +36 holders.
  • The largest Calix buyer in Q2 2025 was Lord, Abbett & Co, an estimated $34.8M added.
  • The largest Calix seller in Q2 2025 was AllianceBernstein, an estimated $49.6M sold.

Based on aggregated 13F filings for Q2 2025.