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MarketAxess Holdings
MKTX

Overview Fund Activity

516 hedge funds and large institutions have $8.21B invested in MarketAxess Holdings in 2025 Q2 according to their latest regulatory filings, with 85 funds opening new positions, 226 increasing their positions, 153 reducing their positions, and 57 closing their positions.

Holders
516
Holders Change
+13
Holders Change %
+2.58%
% of All Funds
6.93%
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
226
Reduced
153
Closed
57
Calls
$56.5M
Puts
$3.67M
Net Calls
+$52.8M
Net Calls Change
+$31.3M

Top Buyers

1
AQR Capital Management
1
AQR Capital Management
Connecticut
$167M
2
Norges Bank
2
Norges Bank
Norway
$115M
3
American Century Companies
3
American Century Companies
Missouri
$109M
4
Arrowstreet Capital
4
Arrowstreet Capital
Massachusetts
$55.8M
5
Royal Bank of Canada
5
Royal Bank of Canada
Ontario, Canada
$43.9M

Top Sellers

1
WA
1
Wasatch Advisors
Utah
$8.16M
2
Macquarie Group
2
Macquarie Group
Australia
$288K
3
Marshall Wace
3
Marshall Wace
United Kingdom
$0
4
Millennium Management
4
Millennium Management
New York
$96.5M
5
VanEck Associates
5
VanEck Associates
New York
$409M
Name Market Value Shares Shares
Change 		Shares
Change %
Connor, Clark & Lunn Investment Management (CC&L)
51
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$26.4M 118,231 +17,013 +17%
RC
52
RDST Capital
Washington
$24.3M 109,005 +74,780 +218%
Bank of Nova Scotia
53
Bank of Nova Scotia
Ontario, Canada
$24.2M 108,481 +91,419 +536%
Prudential Financial
54
Prudential Financial
New Jersey
$21.9M 98,271 +78,336 +393%
Jane Street
55
Jane Street
New York
$21.6M 96,779 +2,256 +2%
Tudor Investment Corp
56
Tudor Investment Corp
Connecticut
$20.8M 93,154 +93,154 New
Man Group
57
Man Group
United Kingdom
$20.3M 90,745 +45,870 +102%
Qube Research & Technologies (QRT)
58
Qube Research & Technologies (QRT)
United Kingdom
$20.1M 89,781 +65,281 +266%
BNP Paribas Financial Markets
59
BNP Paribas Financial Markets
France
$19.1M 85,415 +4,103 +5%
WHG
60
Westwood Holdings Group
Texas
$18.6M 83,495 -4,139 -5%
Canada Pension Plan Investment Board
61
Canada Pension Plan Investment Board
Ontario, Canada
$18.2M 81,289 +29,600 +57%
RhumbLine Advisers
62
RhumbLine Advisers
Massachusetts
$17.2M 77,034 +2,550 +3%
Legal & General Group
63
Legal & General Group
United Kingdom
$17.2M 76,823 +9,468 +14%
Holocene Advisors
64
Holocene Advisors
New York
$17.1M 76,574 -174,068 -69%
Robeco Institutional Asset Management
65
Robeco Institutional Asset Management
Netherlands
$16.8M 75,000 +15,685 +26%
GF
66
Goodman Financial
Texas
$16.4M 73,430 +610 +0.8%
Swiss National Bank
67
Swiss National Bank
Switzerland
$16.1M 72,000 -1,100 -2%
Voloridge Investment Management
68
Voloridge Investment Management
Florida
$15.4M 69,026 +49,542 +254%
SEI Investments
69
SEI Investments
Pennsylvania
$14.1M 63,180 -64,456 -50%
Public Employees Retirement Association of Colorado
70
Public Employees Retirement Association of Colorado
Colorado
$14.1M 63,119 -67 -0.1%
Envestnet Asset Management
71
Envestnet Asset Management
Illinois
$13.8M 61,657 +3,541 +6%
IC
72
IEQ Capital
California
$13.8M 61,635 +49,978 +429%
Verition Fund Management
73
Verition Fund Management
Connecticut
$13.7M 61,457 +47,762 +349%
WAM
74
Wilson Asset Management
Australia
$13.5M 60,492 – –
N
75
Natixis
France
$13.3M 59,752 +45,653 +324%
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