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MarketAxess Holdings
MKTX

485 hedge funds and large institutions have $6.62B invested in MarketAxess Holdings in 2025 Q4 according to their latest regulatory filings, with 117 funds opening new positions, 156 increasing their positions, 170 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

67% more first-time investments, than exits

New positions opened: 117 | Existing positions closed: 70

65% more call options, than puts

Call options by funds: $33.7M | Put options by funds: $20.4M

50% more funds holding in top 10

Funds holding in top 10: 2 → 3 (+1)

8% more funds holding

Funds holding: 450 → 485 (+35)

7% more capital invested

Capital invested by funds: $6.21B → $6.62B (+$404M)

2.96% more ownership

Funds ownership: 95.28% → 98.24% (+3%)

8% less repeat investments, than reductions

Existing positions increased: 156 | Existing positions reduced: 170

Holders
485
Holders Change
+35
Holders Change %
+7.78%
% of All Funds
5.9%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
117
Increased
156
Reduced
170
Closed
70
Calls
$33.7M
Puts
$20.4M
Net Calls
+$13.3M
Net Calls Change
-$156M

Top Buyers

1
BlackRock
BlackRock
New York
+$324M
2
AQR Capital Management
AQR Capital Management
Connecticut
+$274M
3
Primecap Management
Primecap Management
California
+$161M
4
Bank of Montreal
Bank of Montreal
Ontario, Canada
+$159M
5
NRCM
North Reef Capital Management
California
+$119M

Top Sellers

1
HSBC Holdings
HSBC Holdings
United Kingdom
-$306M
2
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$214M
3
VanEck Associates
VanEck Associates
New York
-$125M
4
Millennium Management
Millennium Management
New York
-$52.2M
5
GAM
GuardCap Asset Management
United Kingdom
-$35.4M
Name Holding Trade Value Shares
Change 		Change in
Stake
RWM
476
Rialto Wealth Management
New York
$363 -$171 -1 -33%
HIA
477
HFM Investment Advisors
New Jersey
$363 +$171 +1 +100%
AWM
478
Abound Wealth Management
Tennessee
$363 +$341 +2 New
EWP
479
Elevation Wealth Partners
California
$363 +$341 +2 New
AGWCA
480
Annis Gardner Whiting Capital Advisors
Florida
$182 +$171 +1 New
FFO
481
Fortitude Family Office
Arizona
$181 -$853 -5 -83%
BHWM
482
Bay Harbor Wealth Management
Maryland
$181 – – –
HI
483
Harbour Investments
Wisconsin
$181 – – –
CFD
484
Creative Financial Designs
Indiana
$181 +$171 +1 New
HFS
485
Hughes Financial Services
Virginia
$181 +$171 +1 New
Point72 Asset Management
486
Point72 Asset Management
Connecticut
– -$28.6M -163,900 Closed
FGP
487
Freestone Grove Partners
California
– -$13.1M -75,388 Closed
Qube Research & Technologies (QRT)
488
Qube Research & Technologies (QRT)
United Kingdom
– -$11.3M -64,825 Closed
EGM
489
Engineers Gate Manager
New York
– -$7.32M -42,002 Closed
PP
490
Prospector Partners
Connecticut
– -$6.62M -37,965 Closed
N
491
Natixis
France
– -$6.1M -35,026 Closed
WAM
492
Weiss Asset Management
Massachusetts
– -$5.99M -34,404 Closed
FCBT
493
First Citizens Bank & Trust
North Carolina
– -$5.97M -34,267 Closed
AA
494
ALPS Advisors
Colorado
– -$5.62M -32,267 Closed
Envestnet Portfolio Solutions
495
Envestnet Portfolio Solutions
Illinois
– -$5.48M -31,477 Closed
GPGA
496
Grandeur Peak Global Advisors
Utah
– -$3.56M -20,408 Closed
EMPI
497
Elo Mutual Pension Insurance
Finland
– -$3.17M -18,164 Closed
ECM
498
ExodusPoint Capital Management
New York
– -$2.95M -16,925 Closed
MF
499
Magnetar Financial
Illinois
– -$2.83M -16,232 Closed
IG
500
ING Group
Netherlands
– -$2.39M -13,700 Closed
18 19
20
21 22

MKTX Hedge Fund Activity: Q4 2025 in Review

485 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in MarketAxess Holdings (MKTX) for Q4 2025, worth a combined $6.62B — up 6.5% from $6.21B a quarter earlier.

Buyers outnumbered sellers: 117 funds opened new MKTX positions and 70 closed out — a net gain of 47 holders — while 156 added to existing stakes and 170 trimmed.

The largest buyer was BlackRock, adding an estimated $324M. The largest seller was HSBC Holdings, cutting an estimated $306M.

  • 485 institutional investors held MarketAxess Holdings (MKTX) as of Q4 2025, up from 450 in Q3 2025.
  • Funds reported $6.62B of MarketAxess Holdings stock for Q4 2025, up 6.5% quarter-over-quarter.
  • 117 funds opened new MarketAxess Holdings positions in Q4 2025 and 70 closed out, a net change of +47 holders.
  • The largest MarketAxess Holdings buyer in Q4 2025 was BlackRock, an estimated $324M added.
  • The largest MarketAxess Holdings seller in Q4 2025 was HSBC Holdings, an estimated $306M sold.

Based on aggregated 13F filings for Q4 2025.