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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
BlackRock
1
BlackRock
New York
$2.51B +$53.1M +999,580 +2%
Primecap Management
2
Primecap Management
California
$1.72B -$212M -3,993,338 -12%
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$1.53B -$9.16M -172,481 -0.7%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$1.23B -$239M -4,503,467 -18%
Boston Partners
5
Boston Partners
Massachusetts
$1.1B -$84.5M -1,589,881 -8%
Wellington Management Group
6
Wellington Management Group
Massachusetts
$993M -$199M -3,744,326 -18%
Vanguard Group
7
Vanguard Group
Pennsylvania
$758M +$11.8M +221,819 +2%
State Street
8
State Street
Massachusetts
$692M -$17.6M -330,461 -3%
Invesco
9
Invesco
Georgia
$497M -$15.7M -294,787 -3%
LAM
10
Lyrical Asset Management
New York
$472M +$9.46M +178,122 +2%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$432M +$13M +244,165 +3%
AllianceBernstein
12
AllianceBernstein
Tennessee
$425M -$80.4M -1,514,113 -17%
Bank of America
13
Bank of America
North Carolina
$409M -$28.3M -532,780 -7%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$355M -$21.5M -404,229 -6%
VOYA Investment Management
15
VOYA Investment Management
Georgia
$351M -$13.4M -252,721 -4%
LSV Asset Management
16
LSV Asset Management
Illinois
$342M -$45.5M -855,752 -13%
Massachusetts Financial Services
17
Massachusetts Financial Services
Massachusetts
$326M +$18.9M +355,061 +7%
N
18
Nuveen
North Carolina
$281M -$30.1M -566,513 -10%
EARNEST Partners
19
EARNEST Partners
Georgia
$199M -$4.55M -85,583 -2%
Northern Trust
20
Northern Trust
Illinois
$180M -$3.07M -57,724 -2%
Qube Research & Technologies (QRT)
21
Qube Research & Technologies (QRT)
United Kingdom
$163M +$80.9M +1,522,308 +118%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$160M -$8.67M -163,192 -6%
JP Morgan Chase
23
JP Morgan Chase
New York
$153M +$62.9M +1,183,464 +81%
Charles Schwab
24
Charles Schwab
California
$151M -$2.93M -55,247 -2%
Legal & General Group
25
Legal & General Group
United Kingdom
$143M +$1.42M +26,738 +1%
1
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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.