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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
BCM
76
Becker Capital Management
Oregon
$34.3M -$571K -10,747 -2%
Caisse de Depot et Placement du Quebec (CDPQ)
77
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$30.3M -$15.1M -283,378 -35%
SSA
78
Schonfeld Strategic Advisors
New York
$27M +$24.3M +457,680 +5,207%
Retirement Systems of Alabama
79
Retirement Systems of Alabama
Alabama
$26.3M -$768K -14,448 -3%
FCM
80
Frontier Capital Management
Massachusetts
$25.6M -$2.39M -45,014 -9%
LCM
81
Logan Capital Management
Pennsylvania
$25M +$574K +10,808 +3%
BDAM
82
Blue Door Asset Management
Connecticut
$23.4M -$765K -14,400 -3%
BGIM
83
Brandywine Global Investment Management
Pennsylvania
$22.8M +$12.5M +235,247 +148%
Robeco Institutional Asset Management
84
Robeco Institutional Asset Management
Netherlands
$22.2M -$563K -10,590 -3%
AQR Capital Management
85
AQR Capital Management
Connecticut
$21.3M +$9M +169,367 +85%
CAM
86
Cozad Asset Management
Illinois
$21.1M +$329K +6,190 +2%
TC
87
TwinBeech Capital
New York
$21.1M +$19.4M +364,677 New
Stifel Financial
88
Stifel Financial
Missouri
$20.8M -$1.63M -30,642 -8%
Jane Street
89
Jane Street
New York
$20.5M +$10.4M +195,965 +124%
New York State Teachers Retirement System (NYSTRS)
90
New York State Teachers Retirement System (NYSTRS)
New York
$20.5M -$284K -5,348 -1%
EAM
91
Eventide Asset Management
Massachusetts
$20.4M +$15.3M +287,985 +446%
California State Teachers Retirement System (CalSTRS)
92
California State Teachers Retirement System (CalSTRS)
California
$20.4M -$815K -15,337 -4%
CGH
93
Crossmark Global Holdings
Texas
$19.6M +$14M +263,178 +350%
Susquehanna International Group
94
Susquehanna International Group
Pennsylvania
$19.4M +$5.82M +109,563 +48%
Aberdeen Group
95
Aberdeen Group
United Kingdom
$19.4M -$217K -4,083 -1%
Lazard Asset Management
96
Lazard Asset Management
New York
$19.4M +$11.8M +221,293 +195%
HF
97
HRT Financial
New York
$18M +$16.5M +310,447 New
VanEck Associates
98
VanEck Associates
New York
$17.7M +$227K +4,272 +1%
HW
99
Hancock Whitney
Mississippi
$17.3M +$812K +15,279 +5%
BA
100
Bridgewater Associates
Connecticut
$16.1M -$1.6M -30,170 -10%
2 3
4
5 6

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.