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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
SCM
176
Semanteon Capital Management
Massachusetts
$570K +$535K +9,296 New
OM
177
OV Management
Minnesota
$561K +$5.07K +88 +1%
YMRC
178
Yorktown Management & Research Company
Virginia
$552K – – –
Victory Capital Management
179
Victory Capital Management
Texas
$544K -$265K -4,601 -34%
MSRPS
180
Maryland State Retirement & Pension System
Maryland
$524K -$484K -8,411 -50%
TSS
181
Two Sigma Securities
New York
$523K +$491K +8,519 New
CCIA
182
Campbell & Co Investment Adviser
Maryland
$513K -$504K -8,753 -51%
AI
183
Atria Investments
North Carolina
$512K -$60.1K -1,043 -11%
Pictet Asset Management
184
Pictet Asset Management
Switzerland
$511K – – –
MF
185
Magnetar Financial
Illinois
$493K -$684K -11,870 -60%
Cambridge Investment Research Advisors
186
Cambridge Investment Research Advisors
Iowa
$478K +$449K +7,794 New
II
187
Inspire Investing
Idaho
$458K +$8.93K +155 +2%
KCP
188
Kera Capital Partners
California
$452K – – –
Public Employees Retirement Association of Colorado
189
Public Employees Retirement Association of Colorado
Colorado
$432K -$576 -10 -0.1%
First Trust Advisors
190
First Trust Advisors
Illinois
$410K +$385K +6,677 New
MOACM
191
Mutual of America Capital Management
New York
$409K -$43.4K -754 -10%
CBU
192
CIBC Bancorp USA
Illinois
$386K +$362K +6,289 New
Wolverine Trading
193
Wolverine Trading
Illinois
$381K +$358K +6,210 New
BC
194
Bayforest Capital
United Kingdom
$356K +$322K +5,592 +2,589%
PD
195
Point72 (DIFC)
United Arab Emirates
$354K +$332K +5,764 New
QCM
196
Quantinno Capital Management
New York
$352K +$103K +1,781 +45%
Verition Fund Management
197
Verition Fund Management
Connecticut
$344K -$315K -5,464 -49%
MML Investors Services
198
MML Investors Services
Massachusetts
$340K -$18.8K -327 -6%
IC
199
IEQ Capital
California
$337K – – –
CIP
200
Cornerstone Investment Partners
Georgia
$329K -$23K -400 -7%
6 7
8
9 10

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.