MKTX icon

MarketAxess Holdings

526 hedge funds and large institutions have $8.24B invested in MarketAxess Holdings in 2025 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 228 increasing their positions, 160 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
526
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$65.9M
Puts
$8.94M
Net Calls
Net Calls Change

Top Sellers

1 -$146M
2 -$137M
3 -$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
Change in
Stake
ET
301
Entropy Technologies
New York
$467K
Franklin Resources
302
Franklin Resources
California
$460K
GIA
303
Gateway Investment Advisers
Ohio
$458K
AssetMark Inc
304
AssetMark Inc
California
$453K
RWB
305
RMR Wealth Builders
New Jersey
$452K
Asset Management One
306
Asset Management One
Japan
$452K
LSERS
307
Louisiana State Employees Retirement System
Louisiana
$447K
Pathstone Holdings
308
Pathstone Holdings
New Jersey
$445K
GI
309
GAMMA Investing
California
$443K
KIA
310
Knollwood Investment Advisory
Maryland
$442K
BC
311
Bayforest Capital
United Kingdom
$440K
HighTower Advisors
312
HighTower Advisors
Illinois
$437K
TCM
313
Teza Capital Management
Illinois
$437K
AMI
314
Amica Mutual Insurance
Rhode Island
$436K
SAM
315
Securian Asset Management
Minnesota
$432K
SLAM
316
Swiss Life Asset Management
$426K
OF
317
Optimize Financial
California
$424K
XT
318
XTX Topco
Cayman Islands
$419K
XSC
319
X-Square Capital
Puerto Rico
$419K
HKAM
320
Horizon Kinetics Asset Management
New York
$419K
AC
321
AXQ Capital
New Jersey
$408K
SCP
322
Sivia Capital Partners
California
$406K
IG
323
ING Group
Netherlands
$405K
GC
324
Guggenheim Capital
Illinois
$405K
NMERB
325
New Mexico Educational Retirement Board
New Mexico
$391K