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Calix
CALX

287 hedge funds and large institutions have $2.28B invested in Calix in 2026 Q2 according to their latest regulatory filings, with 39 funds opening new positions, 106 increasing their positions, 112 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed

157% more call options, than puts

Call options by funds: $3.03M | Put options by funds: $1.18M

3.15% more ownership

Funds ownership: 90.96% → 94.11% (+3.1%)

5% less repeat investments, than reductions

Existing positions increased: 106 | Existing positions reduced: 112

7% less funds holding

Funds holding: 310 → 287 (-23)

22% less capital invested

Capital invested by funds: $2.94B → $2.28B (-$657M)

33% less first-time investments, than exits

New positions opened: 39 | Existing positions closed: 58

Holders
287
Holders Change
-23
Holders Change %
-7.42%
% of All Funds
3.46%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
39
Increased
106
Reduced
112
Closed
58
Calls
$3.03M
Puts
$1.18M
Net Calls
+$1.85M
Net Calls Change
-$688K

Top Buyers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
+$32.8M
2
BlackRock
BlackRock
New York
+$26.1M
3
Two Sigma Investments
Two Sigma Investments
New York
+$22.8M
4
TI
Trigran Investments
Illinois
+$18.5M
5
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$18.5M

Top Sellers

Rank Fund Capital Flow
1
CAM
Congress Asset Management
Massachusetts
-$68.6M
2
Millennium Management
Millennium Management
New York
-$50.6M
3
Artisan Partners
Artisan Partners
Wisconsin
-$26M
4
Point72 Asset Management
Point72 Asset Management
Connecticut
-$25.2M
5
Squarepoint
Squarepoint
New York
-$15.2M

CALX Hedge Fund Activity: Q2 2026 in Review

287 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Calix (CALX) for Q2 2026, worth a combined $2.28B — down 22% from $2.94B a quarter earlier.

Sellers outnumbered buyers: 58 funds closed out of CALX and 39 opened new positions — a net loss of 19 holders — while 112 trimmed existing stakes and 106 added.

The largest buyer was Citadel Advisors, adding an estimated $32.8M. The largest seller was Congress Asset Management, cutting an estimated $68.6M.

  • 287 institutional investors held Calix (CALX) as of Q2 2026, down from 310 in Q1 2026.
  • Funds reported $2.28B of Calix stock for Q2 2026, down 22% quarter-over-quarter.
  • 39 funds opened new Calix positions in Q2 2026 and 58 closed out, a net change of -19 holders.
  • The largest Calix buyer in Q2 2026 was Citadel Advisors, an estimated $32.8M added.
  • The largest Calix seller in Q2 2026 was Congress Asset Management, an estimated $68.6M sold.

Based on aggregated 13F filings for Q2 2026.