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MarketAxess Holdings
MKTX
MKTX
447 hedge funds and large institutions have $6.31B invested in MarketAxess Holdings in 2026 Q1 according to their latest regulatory filings, with 61 funds opening new positions, 180 increasing their positions, 151 reducing their positions, and 88 closing their positions.
New
Increased
Maintained
Reduced
Closed
244% more call options, than puts
Call options by funds: $36M | Put options by funds: $10.5M
19% more repeat investments, than reductions
Existing positions increased: 180 | Existing positions reduced: 151
9.28% more ownership
Funds ownership: 98.23% → 107.51% (+9.3%)
5% less capital invested
Capital invested by funds: $6.62B → $6.31B (-$312M)
8% less funds holding
Funds holding: 484 → 447 (-37)
31% less first-time investments, than exits
New positions opened: 61 | Existing positions closed: 88
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Holders
447
Holders Change
-37
Holders Change %
-7.64%
% of All Funds
5.51%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
61
Increased
180
Reduced
151
Closed
88
Calls
$36M
Puts
$10.5M
Net Calls
+$25.5M
Net Calls Change
+$12.2M
Top Buyers
| 1 |
Millennium Management
New York
|
+$138M |
| 2 |
Neuberger Berman Group
New York
|
+$73M |
| 3 |
Goldman Sachs
New York
|
+$58.9M |
| 4 |
BlackRock
New York
|
+$57.6M |
| 5 |
NRCM
North Reef Capital Management
Laguna Beach,
California
|
+$46.5M |
Top Sellers
| 1 |
Citadel Advisors
Miami,
Florida
|
-$95.1M |
| 2 |
GAM
GuardCap Asset Management
London,
United Kingdom
|
-$89.4M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
-$85M |
| 4 |
Holocene Advisors
New York
|
-$30M |
| 5 |
JP Morgan Chase
New York
|
-$19.7M |
