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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 %
Two Sigma Investments
26
Two Sigma Investments
New York
$62.6M 280,089 -150,433 -35%
Bank of America
27
Bank of America
North Carolina
$58M 259,752 +29,164 +13%
Arrowstreet Capital
28
Arrowstreet Capital
Massachusetts
$55.8M 250,037 +161,115 +181%
Two Sigma Advisers
29
Two Sigma Advisers
New York
$54.4M 243,400 -86,000 -26%
Baird Financial Group
30
Baird Financial Group
Wisconsin
$50.5M 226,300 -2,556 -1%
Amundi
31
Amundi
France
$48.6M 221,802 +84,182 +61%
NIG
32
NFJ Investment Group
Texas
$47.1M 211,107 -18,656 -8%
UBS Group
33
UBS Group
Switzerland
$45.2M 202,467 -60,298 -23%
Royal Bank of Canada
34
Royal Bank of Canada
Ontario, Canada
$43.9M 196,608 +156,678 +392%
Walleye Capital
35
Walleye Capital
New York
$43.6M 195,327 +35,275 +22%
Raymond James Financial
36
Raymond James Financial
Florida
$43.4M 194,466 -6,556 -3%
Renaissance Technologies
37
Renaissance Technologies
New York
$42.6M 190,600 +61,100 +47%
Baillie Gifford & Co
38
Baillie Gifford & Co
United Kingdom
$41.7M 186,689 -34,551 -16%
UBS AM
39
UBS AM
Illinois
$41.1M 184,235 +43,101 +31%
TD Asset Management
40
TD Asset Management
Ontario, Canada
$39.2M 175,396 -9,508 -5%
Assenagon Asset Management
41
Assenagon Asset Management
Luxembourg
$38.8M 173,892 -12,677 -7%
D.E. Shaw & Co
42
D.E. Shaw & Co
New York
$37.7M 168,898 +56,418 +50%
NL
43
Nuveen LLC
North Carolina
$35.5M 159,167 +35,359 +29%
Deutsche Bank
44
Deutsche Bank
Germany
$34.4M 154,214 -20,051 -12%
GKIM
45
GW&K Investment Management
Massachusetts
$32.2M 144,016 +1,642 +1%
Barclays
46
Barclays
United Kingdom
$31.3M 140,080 +10,964 +8%
Janus Henderson Group
47
Janus Henderson Group
United Kingdom
$30.4M 136,037 +20,361 +18%
SC
48
Savant Capital
Illinois
$29M 129,693 +9,004 +7%
Goldman Sachs
49
Goldman Sachs
New York
$28.2M 126,349 -7,420 -6%
California Public Employees Retirement System
50
California Public Employees Retirement System
California
$26.9M 120,647 +57,183 +90%
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