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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
MF
276
Manchester Financial
California
$1.88M +$1.72M +32,395 New
SRC
277
Sage Rhino Capital
California
$1.86M -$64.6K -1,216 -4%
BOTPPF
278
Board of the Pension Protection Fund
United Kingdom
$1.85M -$829K -15,600 -33%
DWP
279
Daymark Wealth Partners
Ohio
$1.82M +$216K +4,069 +15%
FAM
280
Fred Alger Management
New York
$1.78M -$42.5K -800 -3%
AO
281
Advisor OS
Illinois
$1.76M +$379K +7,136 +31%
QCM
282
Quantinno Capital Management
New York
$1.75M +$849K +15,983 +113%
Corient Private Wealth
283
Corient Private Wealth
Florida
$1.72M +$187K +3,523 +14%
SCM
284
Sterling Capital Management
North Carolina
$1.68M -$121K -2,283 -7%
GIM
285
Glenmede Investment Management
Pennsylvania
$1.68M +$1.54M +28,982 New
JGC
286
J. Goldman & Co
New York
$1.68M +$1.54M +28,950 New
Vontobel Holding
287
Vontobel Holding
Switzerland
$1.67M -$578K -10,883 -27%
JCIA
288
Jackson Creek Investment Advisors
Colorado
$1.67M +$1.53M +28,779 New
DB
289
Danske Bank
Denmark
$1.66M -$11.6M -218,899 -88%
PTC
290
Private Trust Company
Ohio
$1.66M -$95.2K -1,792 -6%
Asset Management One
291
Asset Management One
Japan
$1.65M -$285K -5,372 -16%
SAM
292
Securian Asset Management
Minnesota
$1.63M -$52.4K -987 -3%
O
293
Ossiam
France
$1.6M +$1.19M +22,317 +417%
DM
294
Delphi Management
Massachusetts
$1.58M -$323K -6,073 -18%
Simplex Trading
295
Simplex Trading
Illinois
$1.57M -$2.92M -54,942 -67%
QC
296
Quantessence Capital
New York
$1.56M +$1.43M +26,891 New
BFO
297
Boston Family Office
Massachusetts
$1.52M +$853K +16,062 +157%
RSWM
298
Robertson Stephens Wealth Management
California
$1.51M -$735K -13,831 -35%
ECM
299
Evergreen Capital Management
Washington
$1.49M +$218K +4,112 +19%
William Blair & Company
300
William Blair & Company
Illinois
$1.46M +$153K +2,878 +13%
10 11
12
13 14

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.