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647 hedge funds and large institutions have $18.9B invested in Flex in 2025 Q2 according to their latest regulatory filings, with 126 funds opening new positions, 206 increasing their positions, 220 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

133% more first-time investments, than exits

New positions opened: 126 | Existing positions closed: 54

125% more funds holding in top 10

Funds holding in top 10: 818 (+10)

83% more call options, than puts

Call options by funds: $81.5M | Put options by funds: $44.6M

52% more capital invested

Capital invested by funds: $12.4B → $18.9B (+$6.43B)

11% more funds holding

Funds holding: 582647 (+65)

3.03% more ownership

Funds ownership: 98.04%101.08% (+3%)

6% less repeat investments, than reductions

Existing positions increased: 206 | Existing positions reduced: 220

Holders
647
Holders Change
+65
Holders Change %
+11.17%
% of All Funds
8.52%
Holding in Top 10
18
Holding in Top 10 Change
+10
Holding in Top 10 Change %
+125%
% of All Funds
0.24%
New
126
Increased
206
Reduced
220
Closed
54
Calls
$81.5M
Puts
$44.6M
Net Calls
+$36.9M
Net Calls Change
+$19.9M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$2.11B +$416M +10,664,549 +34%
Primecap Management
2
Primecap Management
California
$1.68B -$98.2M -2,521,231 -7%
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$1.32B +$6.27M +160,902 +0.6%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$1.28B +$111M +2,850,679 +12%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$1.04B -$33.8M -867,196 -4%
Boston Partners
6
Boston Partners
Massachusetts
$1.03B +$26.8M +687,835 +3%
Vanguard Group
7
Vanguard Group
Pennsylvania
$642M +$20.9M +537,062 +4%
State Street
8
State Street
Massachusetts
$612M +$132M +3,377,669 +38%
Invesco
9
Invesco
Georgia
$443M +$19.8M +508,495 +6%
AllianceBernstein
10
AllianceBernstein
Tennessee
$441M -$46.5M -1,193,421 -12%
LAM
11
Lyrical Asset Management
New York
$398M -$24.7M -632,703 -7%
Bank of America
12
Bank of America
North Carolina
$379M -$11.7M -299,531 -4%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$358M +$95.8M +2,459,511 +52%
LSV Asset Management
14
LSV Asset Management
Illinois
$338M -$8.36M -214,574 -3%
Dimensional Fund Advisors
15
Dimensional Fund Advisors
Texas
$326M -$33.6M -861,702 -12%
VOYA Investment Management
16
VOYA Investment Management
Georgia
$315M +$58.5M +1,500,057 +31%
Norges Bank
17
Norges Bank
Norway
$291M -$5.75M -147,517 -2%
N
18
Nuveen
North Carolina
$271M +$12.9M +331,314 +7%
Massachusetts Financial Services
19
Massachusetts Financial Services
Massachusetts
$263M -$9.85M -252,820 -5%
PCH
20
Polar Capital Holdings
United Kingdom
$187M +$37.3M +957,985 +34%
Alyeska Investment Group
21
Alyeska Investment Group
Illinois
$181M +$33.3M +855,589 +31%
EARNEST Partners
22
EARNEST Partners
Georgia
$175M -$23.7M -608,815 -15%
Franklin Resources
23
Franklin Resources
California
$171M -$12.7M -325,818 -9%
UBS AM
24
UBS AM
Illinois
$158M +$1.25M +31,954 +1%
Northern Trust
25
Northern Trust
Illinois
$157M +$26.4M +676,867 +27%

FLEX Hedge Fund Activity: Q2 2025 in Review

647 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Flex (FLEX) for Q2 2025, worth a combined $18.9B — up 52% from $12.4B a quarter earlier.

Buyers outnumbered sellers: 126 funds opened new FLEX positions and 54 closed out — a net gain of 72 holders — while 206 added to existing stakes and 220 trimmed.

The largest buyer was BlackRock, adding an estimated $416M. The largest seller was Capital World Investors, cutting an estimated $150M.

  • 647 institutional investors held Flex (FLEX) as of Q2 2025, up from 582 in Q1 2025.
  • Funds reported $18.9B of Flex stock for Q2 2025, up 52% quarter-over-quarter.
  • 126 funds opened new Flex positions in Q2 2025 and 54 closed out, a net change of +72 holders.
  • The largest Flex buyer in Q2 2025 was BlackRock, an estimated $416M added.
  • The largest Flex seller in Q2 2025 was Capital World Investors, an estimated $150M sold.

Based on aggregated 13F filings for Q2 2025.