MKTX icon

MarketAxess Holdings

447 hedge funds and large institutions have $6.21B invested in MarketAxess Holdings in 2025 Q3 according to their latest regulatory filings, with 62 funds opening new positions, 159 increasing their positions, 184 reducing their positions, and 136 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less ownership

Funds ownership:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

25% less capital invested

Capital invested by funds: $8.24B → $6.21B (-$2.03B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

54% less first-time investments, than exits

New positions opened: 62 | Existing positions closed: 136

Holders
447
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$192M
Puts
$22.6M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CS
451
Candriam SCA
Luxembourg
KWM
452
Kingsview Wealth Management
Oregon
O
453
Ossiam
France
WA
454
Wasatch Advisors
Utah
Adage Capital Partners
455
Adage Capital Partners
Massachusetts
TC
456
TwinBeech Capital
New York
National Bank of Canada
457
National Bank of Canada
Quebec, Canada
Caisse de Depot et Placement du Quebec (CDPQ)
458
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
Natixis Advisors
459
Natixis Advisors
Massachusetts
Chevy Chase Trust
460
Chevy Chase Trust
Maryland
AI
461
Atom Investors
Texas
AIMCA
462
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
JSP
463
Jackson Square Partners
California
LIP
464
Lighthouse Investment Partners
Florida
Rafferty Asset Management
465
Rafferty Asset Management
New York
CCM
466
Coldstream Capital Management
Washington
YIH
467
Y-Intercept (HK)
Hong Kong
SOMRS
468
State of Michigan Retirement System
Michigan
CNB
469
Czech National Bank
Czech Republic
PVI
470
Pine Valley Investments
New Jersey
OAM
471
Oppenheimer Asset Management
New York
ProShare Advisors
472
ProShare Advisors
Maryland
Retirement Systems of Alabama
473
Retirement Systems of Alabama
Alabama
UM
474
UniSuper Management
Australia
CA
475
Callahan Advisors
Texas