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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 %
Envestnet Asset Management
76
Envestnet Asset Management
Illinois
$12.6M -$31.5M -145,814 -72%
Canada Pension Plan Investment Board
77
Canada Pension Plan Investment Board
Ontario, Canada
$11.2M +$433K +2,000 +4%
Citigroup
78
Citigroup
New York
$10.8M +$408K +1,886 +4%
ECM
79
ExodusPoint Capital Management
New York
$10.4M +$9.97M +46,076 +2,167%
AA
80
ALPS Advisors
Colorado
$10.2M +$727K +3,358 +8%
GC
81
Gillson Capital
Illinois
$10.2M +$10.2M +46,999 New
SSA
82
Schonfeld Strategic Advisors
New York
$10.1M +$5.14M +23,766 +104%
KCM
83
Kornitzer Capital Management
Kansas
$9.8M -$30.3K -140 -0.3%
Man Group
84
Man Group
United Kingdom
$9.71M -$3.58M -16,543 -27%
PCM
85
Prana Capital Management
Connecticut
$9.61M +$2.36M +10,889 +32%
HF
86
HRT Financial
New York
$9.53M +$8.62M +39,851 +955%
Principal Financial Group
87
Principal Financial Group
Iowa
$9.48M -$625K -2,889 -6%
KWM
88
Kingsview Wealth Management
Oregon
$9.17M +$1.17M +5,417 +15%
BG
89
Bahl & Gaynor
Ohio
$8.69M -$419K -1,936 -5%
Royal Bank of Canada
90
Royal Bank of Canada
Ontario, Canada
$8.64M -$2.83M -13,077 -25%
AllianceBernstein
91
AllianceBernstein
Tennessee
$8.34M -$31.8K -147 -0.4%
CWM
92
Congress Wealth Management
Massachusetts
$8.29M +$1.8M +8,331 +28%
AG
93
Algert Global
California
$8.25M +$6.15M +28,408 +293%
IPAM
94
ICICI Prudential Asset Management
India
$8.2M – – –
Mitsubishi UFJ Asset Management
95
Mitsubishi UFJ Asset Management
Japan
$8.08M -$4.82M -22,296 -37%
NPF
96
Norris Perne & French
Michigan
$7.95M +$176K +814 +2%
California State Teachers Retirement System (CalSTRS)
97
California State Teachers Retirement System (CalSTRS)
California
$7.78M -$4.77M -22,040 -38%
State of Wisconsin Investment Board
98
State of Wisconsin Investment Board
Wisconsin
$7.57M +$1.35M +6,253 +22%
State Board of Administration of Florida Retirement System
99
State Board of Administration of Florida Retirement System
Florida
$7.54M -$463K -2,138 -6%
RC
100
RDST Capital
Washington
$7.4M +$7.4M +34,225 New
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4
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