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FLEX

697 hedge funds and large institutions have $20.6B invested in Flex in 2025 Q3 according to their latest regulatory filings, with 114 funds opening new positions, 214 increasing their positions, 261 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

111% more first-time investments, than exits

New positions opened: 114 | Existing positions closed: 54

34% more call options, than puts

Call options by funds: $90.8M | Put options by funds: $67.9M

9% more capital invested

Capital invested by funds: $18.9B → $20.6B (+$1.78B)

8% more funds holding

Funds holding: 647 → 697 (+50)

6% more funds holding in top 10

Funds holding in top 10: 18 → 19 (+1)

6.22% less ownership

Funds ownership: 101.08% → 94.86% (-6.2%)

18% less repeat investments, than reductions

Existing positions increased: 214 | Existing positions reduced: 261

Holders
697
Holders Change
+50
Holders Change %
+7.73%
% of All Funds
9.15%
Holding in Top 10
19
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+5.56%
% of All Funds
0.25%
New
114
Increased
214
Reduced
261
Closed
54
Calls
$90.8M
Puts
$67.9M
Net Calls
+$22.9M
Net Calls Change
-$14M

Top Buyers

1
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
+$80.9M
2
Pacer Advisors
Pacer Advisors
Pennsylvania
+$71.3M
3
JP Morgan Chase
JP Morgan Chase
New York
+$62.9M
4
BlackRock
BlackRock
New York
+$53.1M
5
JCM
Junto Capital Management
New York
+$51.6M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$239M
2
Primecap Management
Primecap Management
California
-$212M
3
Wellington Management Group
Wellington Management Group
Massachusetts
-$199M
4
UBS AM
UBS AM
Illinois
-$168M
5
PCH
Polar Capital Holdings
United Kingdom
-$118M
Name Holding Trade Value Shares
Change 		Change in
Stake
CCM
701
Cinctive Capital Management
New York
– -$12.3M -245,739 Closed
Axa
702
Axa
France
– -$11.6M -231,962 Closed
Thrivent Financial for Lutherans
703
Thrivent Financial for Lutherans
Minnesota
– -$8.13M -162,886 Closed
Calamos Advisors
704
Calamos Advisors
Illinois
– -$7.81M -156,500 Closed
BFM
705
Boothbay Fund Management
New York
– -$4.83M -96,742 Closed
PP
706
PDT Partners
New York
– -$3.87M -77,624 Closed
AAP
707
Ardsley Advisory Partners
Connecticut
– -$3.39M -68,000 Closed
Tudor Investment Corp
708
Tudor Investment Corp
Connecticut
– -$2.61M -49,068 Closed
NYLIM
709
New York Life Investment Management
New York
– -$2M -39,974 Closed
Parallax Volatility Advisers
710
Parallax Volatility Advisers
California
– -$2.01M -37,829 Closed
CC
711
Centiva Capital
New York
– -$1.11M -22,187 Closed
SRL
712
Scientech Research LLC
New Jersey
– -$965K -19,340 Closed
MC
713
Maverick Capital
Texas
– -$933K -18,683 Closed
II
714
Inspire Investing
Idaho
– -$925K -18,537 Closed
DS
715
DRW Securities
Illinois
– -$820K -16,421 Closed
FIM
716
Freedom Investment Management
Connecticut
– -$722K -14,457 Closed
NL
717
NKCFO LLC
Illinois
– -$674K -13,500 Closed
DTL
718
Dynamic Technology Lab
Singapore
– -$614K -12,302 Closed
AA
719
ALPS Advisors
Colorado
– -$515K -10,322 Closed
PTC
720
Petrus Trust Company
Texas
– -$398K -7,982 Closed
CWM
721
Challenger Wealth Management
California
– -$374K -7,500 Closed
CMF
722
Counterpoint Mutual Funds
California
– -$349K -6,993 Closed
TCM
723
Teza Capital Management
Illinois
– -$295K -5,909 Closed
Kovitz Investment Group Partners
724
Kovitz Investment Group Partners
Illinois
– -$287K -5,742 Closed
SFG
725
Sather Financial Group
Texas
– -$270K -5,405 Closed
26 27 28
29
30

FLEX Hedge Fund Activity: Q3 2025 in Review

697 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Flex (FLEX) for Q3 2025, worth a combined $20.6B — up 9.5% from $18.9B a quarter earlier.

Buyers outnumbered sellers: 114 funds opened new FLEX positions and 54 closed out — a net gain of 60 holders — while 214 added to existing stakes and 261 trimmed.

The largest buyer was Qube Research & Technologies (QRT), adding an estimated $80.9M. The largest seller was Fidelity Investments, cutting an estimated $239M.

  • 697 institutional investors held Flex (FLEX) as of Q3 2025, up from 647 in Q2 2025.
  • Funds reported $20.6B of Flex stock for Q3 2025, up 9.5% quarter-over-quarter.
  • 114 funds opened new Flex positions in Q3 2025 and 54 closed out, a net change of +60 holders.
  • The largest Flex buyer in Q3 2025 was Qube Research & Technologies (QRT), an estimated $80.9M added.
  • The largest Flex seller in Q3 2025 was Fidelity Investments, an estimated $239M sold.

Based on aggregated 13F filings for Q3 2025.