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MarketAxess Holdings
MKTX

Overview Fund Activity

503 hedge funds and large institutions have $7.94B invested in MarketAxess Holdings in 2025 Q1 according to their latest regulatory filings, with 81 funds opening new positions, 200 increasing their positions, 173 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
503
Holders Change
-9
Holders Change %
-1.76%
% of All Funds
6.83%
Holding in Top 10
4
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
81
Increased
200
Reduced
173
Closed
81
Calls
$40.6M
Puts
$19.1M
Net Calls
+$21.5M
Net Calls Change
+$24.8M

Top Buyers

1
Millennium Management
Millennium Management
New York
+$103M
2
Citadel Advisors
Citadel Advisors
Florida
+$80.9M
3
Holocene Advisors
Holocene Advisors
New York
+$54.2M
4
American Century Companies
American Century Companies
Missouri
+$43.7M
5
BAM
Burgundy Asset Management
Ontario, Canada
+$34.2M

Top Sellers

1
BlackRock
BlackRock
New York
-$121M
2
Artisan Partners
Artisan Partners
Wisconsin
-$55.7M
3
GAM
GuardCap Asset Management
United Kingdom
-$52M
4
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$40.1M
5
State Street
State Street
Massachusetts
-$35.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
NYLIM
176
New York Life Investment Management
New York
$1.94M -$23.1K -107 -1%
CIBC World Market
177
CIBC World Market
Ontario, Canada
$1.93M -$27.9K -129 -1%
LPL Financial
178
LPL Financial
California
$1.92M +$688K +3,180 +56%
Cerity Partners
179
Cerity Partners
New York
$1.91M +$191K +882 +11%
State of Tennessee, Department of Treasury
180
State of Tennessee, Department of Treasury
Tennessee
$1.91M -$56K -259 -3%
CNB
181
Czech National Bank
Czech Republic
$1.87M +$105K +485 +6%
CF
182
Corebridge Financial
Texas
$1.87M -$56.9K -263 -3%
COPPSERS
183
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$1.87M +$131K +605 +8%
JF
184
Jump Financial
Illinois
$1.86M -$2.93M -13,543 -61%
Universal-Beteiligungs- und Servicegesellschaft
185
Universal-Beteiligungs- und Servicegesellschaft
Germany
$1.83M -$4.48M -20,714 -71%
Truist Financial
186
Truist Financial
North Carolina
$1.82M +$38.1K +176 +2%
SG Americas Securities
187
SG Americas Securities
New York
$1.78M +$1.63M +7,555 +1,153%
MF
188
Magnetar Financial
Illinois
$1.78M -$2.02M -9,355 -53%
Retirement Systems of Alabama
189
Retirement Systems of Alabama
Alabama
$1.75M -$13.2K -61 -0.7%
US Bancorp
190
US Bancorp
Minnesota
$1.74M -$662K -3,058 -28%
TC
191
TownSquare Capital
Utah
$1.73M -$40.9K -189 -2%
Twin Tree Management
192
Twin Tree Management
Texas
$1.72M +$1.72M +7,931 New
BMSSC
193
B. Metzler seel. Sohn & Co
Germany
$1.71M +$241K +1,113 +16%
ACM
194
Ashford Capital Management
Delaware
$1.69M -$7.56M -34,935 -82%
UM
195
UniSuper Management
Australia
$1.68M -$67.1K -310 -4%
SFS
196
Stiles Financial Services
Minnesota
$1.66M +$205K +945 +14%
AIM
197
Achmea Investment Management
Netherlands
$1.62M +$1.62M +7,481 New
KeyBank National Association
198
KeyBank National Association
Ohio
$1.6M -$160K -741 -9%
CFM
199
Catalyst Funds Management
Australia
$1.6M +$1.36M +6,300 +573%
Stifel Financial
200
Stifel Financial
Missouri
$1.59M +$971K +4,486 +156%
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