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MarketAxess Holdings
MKTX

Overview Fund Activity

522 hedge funds and large institutions have $8.24B invested in MarketAxess Holdings in 2025 Q2 according to their latest regulatory filings, with 85 funds opening new positions, 227 increasing their positions, 157 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
522
Holders Change
+19
Holders Change %
+3.78%
% of All Funds
7%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.04%
New
85
Increased
227
Reduced
157
Closed
57
Calls
$65.9M
Puts
$8.94M
Net Calls
+$56.9M
Net Calls Change
+$35.4M

Top Buyers

1
AQR Capital Management
AQR Capital Management
Connecticut
+$139M
2
American Century Companies
American Century Companies
Missouri
+$59.2M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$36M
4
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$35M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$31.8M

Top Sellers

1
WA
Wasatch Advisors
Utah
-$146M
2
Macquarie Group
Macquarie Group
Australia
-$137M
3
Marshall Wace
Marshall Wace
United Kingdom
-$77.5M
4
Millennium Management
Millennium Management
New York
-$41.7M
5
VanEck Associates
VanEck Associates
New York
-$39.4M
Name Holding Trade Value Shares
Change 		Shares
Change %
MCM
476
Manchester Capital Management
Vermont
$4.24K -$5.36K -24 -56%
HWA
477
HHM Wealth Advisors
Tennessee
$4.17K – – –
NA
478
NewEdge Advisors
Louisiana
$4.09K – – –
CTC
479
Central Trust Company
Missouri
$3.8K -$11.2K -50 -75%
W
480
WealthCollab
Washington
$3.8K +$3.8K +17 New
BBHC
481
Brown Brothers Harriman & Co
New York
$3.57K +$1.34K +6 +60%
SWM
482
Spire Wealth Management
Virginia
$3.57K +$2.46K +11 +220%
SIC
483
Salem Investment Counselors
North Carolina
$3.13K – – –
MIM
484
MTM Investment Management
South Carolina
$2.68K +$2.68K +12 New
TIM
485
Tortoise Investment Management
New York
$2.46K +$893 +4 +57%
TPWA
486
Twin Peaks Wealth Advisors
California
$2.26K +$2.26K +12 New
S
487
Sachetta
Massachusetts
$2.23K +$1.56K +7 +233%
Kayne Anderson Rudnick Investment Management
488
Kayne Anderson Rudnick Investment Management
California
$2.01K -$4.91K -22 -71%
RTL
489
Red Tortoise LLC
Georgia
$2.01K – – –
CIA
490
Cape Investment Advisory
Georgia
$1.79K – – –
HHMI
491
Howard Hughes Medical Institute
Maryland
$1.79K +$1.79K +8 New
FFO
492
Fortitude Family Office
Arizona
$1.79K +$1.79K +8 New
JWA
493
JFS Wealth Advisors
Pennsylvania
$1.56K -$1.34K -6 -46%
DPW
494
DiNuzzo Private Wealth
Pennsylvania
$1.34K – – –
BGAI
495
Bruce G. Allen Investments
Colorado
$1.34K -$670 -3 -33%
SC
496
SouthState Corp
Florida
$1.12K -$1.12K -5 -50%
PWA
497
Physician Wealth Advisors
Utah
$1.12K – – –
MCM
498
MV Capital Management
Maryland
$1.12K +$223 +1 +25%
CH
499
Cromwell Holdings
Wyoming
$893 -$7.81K -35 -90%
VCM
500
Versant Capital Management
Arizona
$893 +$223 +1 +33%
18 19
20
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