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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
LCM
151
Legato Capital Management
California
$965K +$500K +8,675 +123%
COPPSERS
152
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$929K +$18.6K +323 +2%
GWM
153
Gibbs Wealth Management
Georgia
$897K -$135K -2,352 -14%
Ensign Peak Advisors
154
Ensign Peak Advisors
Utah
$857K -$392K -6,800 -33%
KCM
155
Kornitzer Capital Management
Kansas
$829K – – –
OPERF
156
Oregon Public Employees Retirement Fund
Oregon
$822K +$11.5K +200 +2%
SOW
157
State of Wyoming
Wyoming
$820K +$236K +4,093 +44%
KK
158
KLP Kapitalforvaltning
Norway
$816K – – –
Zurich Cantonal Bank
159
Zurich Cantonal Bank
Switzerland
$758K – – –
Robeco Institutional Asset Management
160
Robeco Institutional Asset Management
Netherlands
$728K +$684K +11,870 New
TI
161
Trexquant Investment
Connecticut
$723K -$5.63M -97,717 -89%
GAM
162
Gotham Asset Management
New York
$700K +$235K +4,081 +56%
Schroder Investment Management Group
163
Schroder Investment Management Group
United Kingdom
$696K +$32.8K +570 +5%
ProShare Advisors
164
ProShare Advisors
Maryland
$683K -$116K -2,022 -15%
HA
165
Huntleigh Advisors
Missouri
$677K +$37.8K +656 +6%
DTL
166
Dynamic Technology Lab
Singapore
$668K +$627K +10,891 New
RAM
167
Resona Asset Management
Japan
$666K +$625K +10,856 New
Bank of Montreal
168
Bank of Montreal
Ontario, Canada
$657K -$146K -2,531 -19%
VA
169
Vident Advisory
Georgia
$631K +$339K +5,885 +134%
Amundi
170
Amundi
France
$627K +$33.6K +583 +6%
FG
171
Formula Growth
Quebec, Canada
$614K – – –
OQS
172
Occudo Quantitative Strategies
Florida
$607K -$4.89K -85 -0.9%
PWG
173
Portside Wealth Group
Utah
$599K +$100K +1,738 +22%
LA
174
LVW Advisors
New York
$581K -$5.99K -104 -1%
LPL Financial
175
LPL Financial
California
$572K -$1.84K -32 -0.3%
5 6
7
8 9

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.