MarketAxess Holdings
MKTX
397 hedge funds and large institutions have $4.44B invested in MarketAxess Holdings in 2026 Q2 according to their latest regulatory filings, with 57 funds opening new positions, 130 increasing their positions, 171 reducing their positions, and 107 closing their positions.
1,792% more call options, than puts
Call options by funds: $255M | Put options by funds: $13.5M
2.42% more ownership
Funds ownership: 107.57% → 110% (+2.4%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
12% less funds holding
Funds holding: 452 → 397 (-55)
24% less repeat investments, than reductions
Existing positions increased: 130 | Existing positions reduced: 171
30% less capital invested
Capital invested by funds: $6.31B → $4.44B (-$1.87B)
47% less first-time investments, than exits
New positions opened: 57 | Existing positions closed: 107
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NRCM
North Reef Capital Management
Laguna Beach,
California
|
+$217M |
| 2 |
Goldman Sachs
New York
|
+$74.4M |
| 3 |
ACL
Azora Capital LP
Miami,
Florida
|
+$73.1M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$56.9M |
| 5 |
DAM
Davis Asset Management
Sausalito,
California
|
+$55.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$139M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
-$99.2M |
| 3 |
FPP
Findlay Park Partners
London,
United Kingdom
|
-$79.3M |
| 4 |
VanEck Associates
New York
|
-$44.8M |
| 5 |
BNP Paribas Financial Markets
Paris,
France
|
-$40.5M |
MKTX Hedge Fund Activity: Q2 2026 in Review
397 of the 8,349 institutional investors tracked by Wall St. Rank reported a position in MarketAxess Holdings (MKTX) for Q2 2026, worth a combined $4.44B — down 30% from $6.31B a quarter earlier.
Sellers outnumbered buyers: 107 funds closed out of MKTX and 57 opened new positions — a net loss of 50 holders — while 171 trimmed existing stakes and 130 added.
The largest buyer was North Reef Capital Management, adding an estimated $217M. The largest seller was Millennium Management, cutting an estimated $139M.
- 397 institutional investors held MarketAxess Holdings (MKTX) as of Q2 2026, down from 452 in Q1 2026.
- Funds reported $4.44B of MarketAxess Holdings stock for Q2 2026, down 30% quarter-over-quarter.
- 57 funds opened new MarketAxess Holdings positions in Q2 2026 and 107 closed out, a net change of -50 holders.
- The largest MarketAxess Holdings buyer in Q2 2026 was North Reef Capital Management, an estimated $217M added.
- The largest MarketAxess Holdings seller in Q2 2026 was Millennium Management, an estimated $139M sold.
Based on aggregated 13F filings for Q2 2026.