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Flex
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
Mercer Global Advisors
101
Mercer Global Advisors
Colorado
$16M +$14.4M +270,769 +4,470%
TAM
102
Tocqueville Asset Management
New York
$15.6M -$2.44M -45,985 -15%
DSN
103
D. Scott Neal
Kentucky
$15.5M +$4.46K +84 +0%
Los Angeles Capital Management
104
Los Angeles Capital Management
California
$14.4M -$18.3M -344,624 -58%
First Trust Advisors
105
First Trust Advisors
Illinois
$14.4M +$9.87M +185,815 +299%
Russell Investments Group
106
Russell Investments Group
United Kingdom
$14.3M +$2.9M +54,626 +28%
Brown Advisory
107
Brown Advisory
Maryland
$14.2M +$1.8M +33,976 +16%
SI
108
Sora Investors
Pennsylvania
$14M +$9.9M +186,260 +333%
Bank of Montreal
109
Bank of Montreal
Ontario, Canada
$13.9M +$9.48M +178,498 +290%
Universal-Beteiligungs- und Servicegesellschaft
110
Universal-Beteiligungs- und Servicegesellschaft
Germany
$13.7M +$530K +9,968 +4%
AIM
111
AXA Investment Managers
France
$13.4M +$12.3M +231,962 New
Janney Montgomery Scott
112
Janney Montgomery Scott
Pennsylvania
$13.3M +$51.7K +973 +0.4%
BPIM
113
Brant Point Investment Management
New York
$12.9M -$266K -5,000 -2%
State of Wisconsin Investment Board
114
State of Wisconsin Investment Board
Wisconsin
$12.7M -$43.9K -826 -0.4%
CCS
115
Concentric Capital Strategies
Connecticut
$12.5M -$1.1M -20,649 -9%
EGM
116
Engineers Gate Manager
New York
$12.3M +$11.3M +212,440 New
Manulife (Manufacturers Life Insurance)
117
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$12.2M -$938K -17,655 -8%
Teacher Retirement System of Texas
118
Teacher Retirement System of Texas
Texas
$12.2M +$2.92M +54,972 +36%
STB
119
S&T Bank
Pennsylvania
$12M -$1.3M -24,473 -11%
Royal London Asset Management
120
Royal London Asset Management
United Kingdom
$11.9M – – –
LG
121
Leuthold Group
Minnesota
$11.9M +$369K +6,944 +4%
RBI
122
Raiffeisen Bank International
Austria
$11.8M – – –
Deutsche Bank
123
Deutsche Bank
Germany
$11.7M +$6.93M +130,464 +181%
CSS
124
Cubist Systematic Strategies
Connecticut
$11.6M +$10.7M +200,606 New
MIM
125
MetLife Investment Management
New Jersey
$11.2M -$711K -13,383 -6%
3 4
5
6 7

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.