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Calix
CALX

313 hedge funds and large institutions have $3.48B invested in Calix in 2025 Q3 according to their latest regulatory filings, with 52 funds opening new positions, 111 increasing their positions, 101 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

381% more call options, than puts

Call options by funds: $10.4M | Put options by funds: $2.17M

73% more first-time investments, than exits

New positions opened: 52 | Existing positions closed: 30

17% more capital invested

Capital invested by funds: $2.97B → $3.48B (+$502M)

6% more funds holding

Funds holding: 295 → 313 (+18)

10% more repeat investments, than reductions

Existing positions increased: 111 | Existing positions reduced: 101

0.46% more ownership

Funds ownership: 86.28% → 86.74% (+0.46%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

Holders
313
Holders Change
+18
Holders Change %
+6.1%
% of All Funds
4.11%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
52
Increased
111
Reduced
101
Closed
30
Calls
$10.4M
Puts
$2.17M
Net Calls
+$8.27M
Net Calls Change
-$879K

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$68.1M
2
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$50M
3
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$35.8M
4
DSCM
Divisadero Street Capital Management
Florida
+$23.1M
5
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$22.6M

Top Sellers

1
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$39.6M
2
Artisan Partners
Artisan Partners
Wisconsin
-$28.5M
3
Barclays
Barclays
United Kingdom
-$17.3M
4
PCMI
Paradigm Capital Management Inc
New York
-$16.8M
5
Morgan Stanley
Morgan Stanley
New York
-$16.5M
Name Holding Trade Value Shares
Change 		Change in
Stake
Calamos Advisors
126
Calamos Advisors
Illinois
$1.53M +$1.44M +25,007 New
Mirae Asset Global Investments
127
Mirae Asset Global Investments
South Korea
$1.53M +$1.43M +24,894 New
TI
128
Tidal Investments
Wisconsin
$1.46M +$628K +10,903 +85%
Walleye Capital
129
Walleye Capital
New York
$1.44M -$3.39M -58,802 -71%
HSBC Holdings
130
HSBC Holdings
United Kingdom
$1.39M -$1.38M -24,019 -51%
SGI
131
Summit Global Investments
Utah
$1.34M +$927K +16,102 +278%
FDCDDQ
132
Federation des caisses Desjardins du Quebec
Quebec, Canada
$1.34M +$166K +2,889 +15%
GCM
133
Graham Capital Management
Connecticut
$1.33M -$561K -9,740 -31%
BNP Paribas Financial Markets
134
BNP Paribas Financial Markets
France
$1.26M -$7.02M -121,970 -86%
GCP
135
GSA Capital Partners
United Kingdom
$1.24M +$749K +13,014 +182%
SG Americas Securities
136
SG Americas Securities
New York
$1.19M +$932K +16,178 +507%
SO
137
STRS Ohio
Ohio
$1.17M -$80.6K -1,400 -7%
WG
138
Winton Group
United Kingdom
$1.14M -$400K -6,950 -27%
YCM
139
Yousif Capital Management
Michigan
$1.12M -$185K -3,207 -15%
Two Sigma Investments
140
Two Sigma Investments
New York
$1.12M -$376K -6,524 -26%
ASRS
141
Arizona State Retirement System
Arizona
$1.12M -$14.7K -255 -1%
WLG
142
Williamson Legacy Group
Indiana
$1.12M +$1.05M +18,197 New
Handelsbanken Fonder
143
Handelsbanken Fonder
Sweden
$1.1M – – –
JF
144
Jump Financial
Illinois
$1.09M -$1.24M -21,520 -55%
AB
145
Amalgamated Bank
New York
$1.04M +$23K +400 +2%
State Board of Administration of Florida Retirement System
146
State Board of Administration of Florida Retirement System
Florida
$1.04M – – –
LCM
147
Landscape Capital Management
New Jersey
$1.01M +$306K +5,312 +48%
PFSRSONJ
148
Police & Firemen's Retirement System of New Jersey
New Jersey
$1M +$167K +2,894 +22%
TRSOTSOK
149
Teachers Retirement System of the State of Kentucky
Kentucky
$998K -$108K -1,877 -10%
Boston Partners
150
Boston Partners
Massachusetts
$995K -$52.6K -913 -5%
4 5
6
7 8

CALX Hedge Fund Activity: Q3 2025 in Review

313 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Calix (CALX) for Q3 2025, worth a combined $3.48B — up 17% from $2.97B a quarter earlier.

Buyers outnumbered sellers: 52 funds opened new CALX positions and 30 closed out — a net gain of 22 holders — while 111 added to existing stakes and 101 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $68.1M. The largest seller was Assenagon Asset Management, cutting an estimated $39.6M.

  • 313 institutional investors held Calix (CALX) as of Q3 2025, up from 295 in Q2 2025.
  • Funds reported $3.48B of Calix stock for Q3 2025, up 17% quarter-over-quarter.
  • 52 funds opened new Calix positions in Q3 2025 and 30 closed out, a net change of +22 holders.
  • The largest Calix buyer in Q3 2025 was T. Rowe Price Associates, an estimated $68.1M added.
  • The largest Calix seller in Q3 2025 was Assenagon Asset Management, an estimated $39.6M sold.

Based on aggregated 13F filings for Q3 2025.