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MarketAxess Holdings
MKTX

Overview Fund Activity

522 hedge funds and large institutions have $8.24B invested in MarketAxess Holdings in 2025 Q2 according to their latest regulatory filings, with 85 funds opening new positions, 227 increasing their positions, 157 reducing their positions, and 57 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
522
Holders Change
+19
Holders Change %
+3.78%
% of All Funds
7%
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
227
Reduced
157
Closed
57
Calls
$65.9M
Puts
$8.94M
Net Calls
+$56.9M
Net Calls Change
+$35.4M

Top Buyers

1
AQR Capital Management
AQR Capital Management
Connecticut
+$139M
2
American Century Companies
American Century Companies
Missouri
+$59.2M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$36M
4
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$35M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$31.8M

Top Sellers

1
WA
Wasatch Advisors
Utah
-$146M
2
Macquarie Group
Macquarie Group
Australia
-$137M
3
Marshall Wace
Marshall Wace
United Kingdom
-$77.5M
4
Millennium Management
Millennium Management
New York
-$41.7M
5
VanEck Associates
VanEck Associates
New York
-$39.4M
Name Holding Trade Value Shares
Change 		Shares
Change %
Nomura Asset Management
401
Nomura Asset Management
Japan
$180K +$3.13K +14 +2%
CI
402
CX Institutional
Indiana
$160K +$19.4K +87 +14%
GAG
403
Goodman Advisory Group
Massachusetts
$157K +$157K +705 New
EAM
404
Erste Asset Management
Austria
$154K +$154K +700 New
PA
405
Parallel Advisors
California
$152K +$64.5K +289 +74%
CPCPP
406
Canada Post Corporation Pension Plan
Canada
$138K +$138K +620 New
RC
407
Rexford Capital
Texas
$137K +$137K +614 New
IA
408
IFP Advisors
Florida
$131K +$31.5K +141 +32%
SOW
409
State of Wyoming
Wyoming
$130K +$127K +567 +4,362%
S
410
SignatureFD
Georgia
$122K +$47.6K +213 +64%
C
411
Covestor
United Kingdom
$120K -$17K -76 -12%
RAM
412
Resona Asset Management
Japan
$86.1K +$18.9K +86 +28%
AIM
413
Anchor Investment Management
South Carolina
$84K – – –
AIP
414
Ameritas Investment Partners
Nebraska
$79.1K -$10.1K -45 -11%
CT
415
Colonial Trust
South Carolina
$78.4K -$447 -2 -0.6%
CA
416
Clearstead Advisors
Ohio
$74.4K +$50.7K +227 +214%
AF
417
Allworth Financial
California
$69.2K +$42.7K +191 +161%
ERSOT
418
Employees Retirement System of Texas
Texas
$69K +$69K +311 New
PEAK6
419
PEAK6
Illinois
$65.9K +$65.9K +295 New
UB
420
UMB Bank
Missouri
$59.4K +$9.83K +44 +20%
MPWT
421
MassMutual Private Wealth & Trust
Connecticut
$55.4K +$18.8K +84 +51%
BIG
422
Brooklyn Investment Group
New York
$54.3K +$46.5K +208 +594%
Bank Julius Baer & Co
423
Bank Julius Baer & Co
Switzerland
$53.6K +$4.24K +19 +9%
PPC
424
Park Place Capital
Alabama
$52.7K – – –
PS
425
Principal Securities
Iowa
$50.7K -$7.59K -34 -13%
15 16
17
18 19