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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
SSA
76
Schonfeld Strategic Advisors
New York
$4.4M +$1.95M +33,835 +89%
Fidelity Investments
77
Fidelity Investments
Massachusetts
$4.34M +$1.58M +27,487 +64%
HIM
78
Hillsdale Investment Management
Ontario, Canada
$4.26M +$3.99M +69,200 +43,250%
DFCM
79
Dark Forest Capital Management
Puerto Rico
$4.23M +$3.23K +56 +0.1%
BFM
80
Boothbay Fund Management
New York
$4.08M -$126K -2,195 -3%
Citadel Advisors
81
Citadel Advisors
Florida
$4.03M -$12.1M -210,003 -76%
Man Group
82
Man Group
United Kingdom
$3.86M +$3.63M +62,964 New
New York State Teachers Retirement System (NYSTRS)
83
New York State Teachers Retirement System (NYSTRS)
New York
$3.77M – – –
Canada Life
84
Canada Life
Manitoba, Canada
$3.75M – – –
Allianz Asset Management
85
Allianz Asset Management
Germany
$3.68M +$516K +8,966 +18%
CIS
86
Connors Investor Services
Pennsylvania
$3.65M -$1.64M -28,498 -32%
California State Teachers Retirement System (CalSTRS)
87
California State Teachers Retirement System (CalSTRS)
California
$3.53M +$163K +2,831 +5%
Comerica Bank
88
Comerica Bank
Texas
$3.44M +$1.11M +19,225 +52%
AQR Capital Management
89
AQR Capital Management
Connecticut
$3.04M +$347K +6,024 +14%
IA
90
Inspire Advisors
Idaho
$2.84M +$2.67M +46,339 New
TIM
91
Thompson Investment Management
Wisconsin
$2.75M -$1.44M -25,000 -36%
IIM
92
INTECH Investment Management
Florida
$2.7M +$638K +11,086 +34%
American Century Companies
93
American Century Companies
Missouri
$2.7M -$6.02M -104,530 -70%
Thrivent Financial for Lutherans
94
Thrivent Financial for Lutherans
Minnesota
$2.69M +$84.7K +1,471 +3%
Citigroup
95
Citigroup
New York
$2.65M -$3.18M -55,137 -56%
D.E. Shaw & Co
96
D.E. Shaw & Co
New York
$2.61M -$9.21M -159,863 -79%
Wells Fargo
97
Wells Fargo
California
$2.57M +$345K +5,984 +17%
Mackenzie Financial
98
Mackenzie Financial
Ontario, Canada
$2.45M +$674K +11,712 +41%
Creative Planning
99
Creative Planning
Kansas
$2.39M +$605K +10,513 +37%
JCIA
100
Jackson Creek Investment Advisors
Colorado
$2.37M -$806 -14 -0%
2 3
4
5 6

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.