MKTX icon

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.

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
1
Millennium Management
New York
$134M
2
Citadel Advisors
2
Citadel Advisors
Florida
$103M
3
Holocene Advisors
3
Holocene Advisors
New York
$54.2M
4
American Century Companies
4
American Century Companies
Missouri
$48.1M
5
BAM
5
Burgundy Asset Management
Ontario, Canada
$87.1M

Top Sellers

1
BlackRock
1
BlackRock
New York
$564M
2
Norges Bank
2
Norges Bank
Norway
$0
3
Artisan Partners
3
Artisan Partners
Wisconsin
$0
4
GAM
4
GuardCap Asset Management
United Kingdom
$330M
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$96.3M
Name Market Value Shares Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$953M 4,407,136 -27,810 -0.6%
BlackRock
2
BlackRock
New York
$564M 2,605,396 -558,489 -18%
T. Rowe Price Investment Management
3
T. Rowe Price Investment Management
Maryland
$503M 2,323,015 +24,606 +1%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$474M 2,189,916 -110,620 -5%
VanEck Associates
5
VanEck Associates
New York
$434M 2,005,916 +5,180 +0.3%
GAM
6
GuardCap Asset Management
United Kingdom
$330M 1,523,006 -240,202 -14%
State Street
7
State Street
Massachusetts
$317M 1,465,406 -164,105 -10%
Primecap Management
8
Primecap Management
California
$295M 1,361,512 -7,590 -0.6%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$245M 1,134,750 +21,442 +2%
Invesco
10
Invesco
Georgia
$196M 904,203 -140,157 -13%
WA
11
Wasatch Advisors
Utah
$149M 688,048 +149,327 +28%
FPP
12
Findlay Park Partners
United Kingdom
$147M 680,000 +9,100 +1%
Millennium Management
13
Millennium Management
New York
$134M 618,922 +474,776 +329%
Macquarie Group
14
Macquarie Group
Australia
$133M 612,747 -107,545 -15%
Citadel Advisors
15
Citadel Advisors
Florida
$103M 474,345 +373,757 +372%
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$102M 470,760 +72,893 +18%
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$96.3M 445,289 -185,237 -29%
Two Sigma Investments
18
Two Sigma Investments
New York
$93.1M 430,522 +142,203 +49%
BAM
19
Burgundy Asset Management
Ontario, Canada
$87.1M 402,511 +158,240 +65%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$84.2M 389,054 -51,880 -12%
Charles Schwab
21
Charles Schwab
California
$80.6M 372,468 +9,244 +3%
NRCM
22
North Reef Capital Management
California
$77.9M 360,000 +88,682 +33%
Marshall Wace
23
Marshall Wace
United Kingdom
$77.5M 358,332 -123,099 -26%
CAM
24
Congress Asset Management
Massachusetts
$73.9M 341,738 +27,177 +9%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$71.3M 329,400 +96,300 +41%
1
2 3 4 5