Marketaxess HoldingsMKTX
13F holders, Q2 2025 (June 30)531holders +21
78new positions
58sold out
8famous investors
$223.23avg. 13F price*
At the end of Q2 2025, 531 institutions reported holding Marketaxess Holdings Inc. (MKTX) in their 13F filings, up 21 from Q1 2025. 78 opened new positions and 58 sold out. The largest holders were Vanguard Group Inc. ($973.6M), BlackRock, Inc. ($591.8M) and FMR LLC ($520.9M). 8 famous investors held it, including Paul Tudor Jones (0.2% of Tudor Investment Corporation's portfolio), Cliff Asness (0.1% of AQR Capital Management's portfolio) and Israel Englander (0.1% of Millennium Management's portfolio).
- Company
- Marketaxess Holdings Inc.
- CUSIP
- 57060D108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 78 | $109.6M |
| Exits | 58 | $164.5M |
All 13F filers, Q1 2025 → Q2 2025: 3,838,519 shares bought and 4,053,320 shares sold, net −214,801 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 531 holders
| Vanguard Group Inc. | 0.02% | Reduce -1.1% | 4,359,372 | $973.6M |
| BlackRock, Inc. | 0.01% | Add +1.7% | 2,649,886 | $591.8M |
| FMR LLC | 0.03% | Add +6.5% | 2,332,146 | $520.9M |
| T. Rowe Price Investment Management, Inc. | 0.33% | Add +0.4% | 2,331,988 | $520.8M |
| Van Eck Associates Corp. | 0.47% | Reduce -8.8% | 1,829,597 | $408.6M |
| State Street Corp. | 0.01% | Add +4.6% | 1,532,696 | $342.3M |
| GUARDCAP ASSET MANAGEMENT Ltd | 6.57% | Reduce -1.6% | 1,498,358 | $334.6M |
| Primecap Management Co. | 0.24% | Reduce -1.6% | 1,339,292 | $299.1M |
| Geode Capital Management, LLC | 0.02% | Add +0.6% | 1,141,198 | $254.5M |
| Invesco Ltd. | 0.03% | Reduce -5.6% | 853,213 | $190.6M |
| AQR Capital Management | 0.14% | Add +485.6% | 758,462 | $167.2M |
| Findlay Park Partners LLP | 1.51% | Reduce -3.5% | 656,300 | $146.6M |
| Norges Bank | 0.01% | Add +1.1% | 513,089 | $114.6M |
| Dimensional Fund Advisors LP | 0.03% | Add +8.6% | 511,422 | $114.2M |
| American Century Companies Inc. | 0.06% | Add +119.1% | 487,197 | $108.8M |
| Millennium Management | 0.09% | Reduce -30.2% | 432,182 | $96.5M |
| Morgan Stanley | 0.01% | Add +35.0% | 424,807 | $94.9M |
| North Reef Capital Management LP | 4.16% | Add +16.7% | 420,000 | $93.8M |
| JPMorgan Chase & Co. | 0.01% | Reduce -5.9% | 419,044 | $93.6M |
| Burgundy Asset Management Ltd. | 0.90% | Add +3.0% | 414,370 | $92.5M |
| Bank of New York Mellon Corp | 0.02% | Reduce -3.4% | 376,029 | $84.0M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -1.6% | 366,467 | $81.8M |
| Citadel Advisors | 0.07% | Reduce -26.0% | 351,166 | $78.4M |
| Northern Trust Corp. | 0.01% | Add +0.4% | 305,564 | $68.2M |
| Congress Asset Management Co. | 0.44% | Reduce -16.2% | 286,276 | $63.9M |
| Two Sigma Investments, LP | 0.12% | Reduce -34.9% | 280,089 | $62.6M |
| Bank of America Corp. | 0.00% | Add +12.7% | 259,752 | $58.0M |
| Arrowstreet Capital, Limited Partnership | 0.04% | Add +181.2% | 250,037 | $55.8M |
| Two Sigma Advisers, LP | 0.11% | Reduce -26.1% | 243,400 | $54.4M |
| Baird Financial Group, Inc. | 0.09% | Reduce -1.1% | 226,300 | $50.5M |
| Amundi | 0.02% | Add +61.2% | 221,802 | $48.6M |
| NFJ Investment Group, LLC | 1.64% | Reduce -8.1% | 211,107 | $47.1M |
| UBS Group AG | 0.01% | Reduce -22.9% | 202,467 | $45.2M |
| Royal Bank of Canada | 0.01% | Add +392.4% | 196,608 | $43.9M |
| Walleye Capital LLC | 0.45% | Add +22.0% | 195,327 | $43.6M |
| Raymond James Financial Inc. | 0.01% | Reduce -3.3% | 194,466 | $43.4M |
| Renaissance Technologies | 0.06% | Add +47.2% | 190,600 | $42.6M |
| Baillie Gifford & Co. | 0.03% | Reduce -15.6% | 186,689 | $41.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +30.5% | 184,235 | $41.1M |
| TD Asset Management Inc | 0.03% | Reduce -5.1% | 175,396 | $39.2M |
| Assenagon Asset Management S.A. | 0.06% | Reduce -6.8% | 173,892 | $38.8M |
| D. E. Shaw & Co. | 0.04% | Add +50.2% | 168,898 | $37.7M |
| Nuveen, LLC | 0.01% | Add +28.6% | 159,167 | $35.5M |
| Deutsche Bank AG | 0.01% | Reduce -11.5% | 154,214 | $34.4M |
| GW&K Investment Management, LLC | 0.29% | Add +1.1% | 144,016 | $32.2M |
| Barclays PLC | 0.01% | Add +8.5% | 140,080 | $31.3M |
| Janus Henderson Group PLC | 0.01% | Add +17.6% | 136,037 | $30.4M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -5.5% | 126,349 | $28.2M |
| California Public Employees Retirement System | 0.02% | Add +90.1% | 120,647 | $26.9M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.09% | Add +16.8% | 118,231 | $26.4M |
| Savant Capital, LLC | 0.19% | Add +0.2% | 116,266 | $26.0M |
| RDST Capital LLC | 2.43% | Add +218.5% | 109,005 | $24.3M |
| Bank of Nova Scotia | 0.05% | Add +535.8% | 108,481 | $24.2M |
| Prudential Financial Inc. | 0.03% | Add +393.0% | 98,271 | $21.9M |
| Jane Street Group, LLC | 0.04% | Add +2.4% | 96,779 | $21.6M |
| Tudor Investment Corporation | 0.16% | New | 93,154 | $20.8M |
| Man Group plc | 0.04% | Add +102.2% | 90,745 | $20.3M |
| Qube Research & Technologies Ltd | 0.03% | Add +266.4% | 89,781 | $20.1M |
| BNP Paribas Financial Markets | 0.02% | Add +5.0% | 85,415 | $19.1M |
| Westwood Holdings Group Inc. | 0.14% | Reduce -4.7% | 83,495 | $18.6M |
| Schroder Investment Management Group | 0.02% | Reduce -25.8% | 83,019 | $18.5M |
| Canada Pension Plan Investment Board | 0.02% | Add +57.3% | 81,289 | $18.2M |
| Rhumbline Advisers | 0.01% | Add +3.4% | 77,034 | $17.2M |
| Legal & General Group Plc | 0.00% | Add +14.1% | 76,823 | $17.2M |
| Holocene Advisors, LP | 0.04% | Reduce -69.5% | 76,574 | $17.1M |
| Robeco Institutional Asset Management B.V. | 0.03% | Add +26.4% | 75,000 | $16.8M |
| Goodman Financial Corp | 3.30% | Add +0.8% | 73,430 | $16.4M |
| Swiss National Bank | 0.01% | Reduce -1.5% | 72,000 | $16.1M |
| Voloridge Investment Management, LLC | 0.06% | Add +254.3% | 69,026 | $15.4M |
| Sei Investments Co. | 0.02% | Reduce -50.5% | 63,180 | $14.1M |
| Public Employees Retirement Association of Colorado | 0.05% | Reduce -0.1% | 63,119 | $14.1M |
| Envestnet Asset Management Inc. | 0.00% | Add +6.1% | 61,657 | $13.8M |
| Ieq Capital, LLC | 0.08% | Add +428.7% | 61,635 | $13.8M |
| Verition Fund Management LLC | 0.08% | Add +348.8% | 61,457 | $13.7M |
| Wilson Asset Management (international) PTY Ltd. | 3.32% | No change | 60,492 | $13.5M |
| Natixis | 0.07% | Add +323.8% | 59,752 | $13.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +0.1% | 59,478 | $13.3M |
| HSBC Holdings PLC | 0.01% | Reduce -27.9% | 58,450 | $13.0M |
| Cubist Systematic Strategies, LLC | 0.14% | New | 58,044 | $13.0M |
| Los Angeles Capital Management LLC | 0.05% | Reduce -4.7% | 56,423 | $12.6M |
| Point72 Asset Management | 0.03% | New | 55,468 | $12.4M |
| HRT Financial LP | 0.05% | Add +25.6% | 55,315 | $12.4M |
| Capital Fund Management S.A. | 0.13% | Add +214.2% | 53,392 | $11.9M |
| Principal Financial Group Inc. | 0.01% | Add +17.8% | 51,597 | $11.5M |
| Candriam S.C.A. | 0.06% | New | 50,000 | $11.2M |
| Trexquant Investment LP | 0.12% | Add +123.6% | 49,416 | $11.0M |
| Citigroup Inc. | 0.01% | Reduce -3.4% | 48,248 | $10.8M |
| Alps Advisors Inc. | 0.06% | Reduce -0.7% | 46,710 | $10.4M |
| DF Dent & Co. Inc. | 0.13% | New | 46,126 | $10.3M |
| Kornitzer Capital Management Inc. | 0.20% | Reduce -0.1% | 45,246 | $10.1M |
| Engineers Gate Manager LP | 0.13% | Add +117.8% | 45,188 | $10.1M |
| Kingsview Wealth Management, LLC | 0.16% | Reduce -2.3% | 41,402 | $9.2M |
| Algert Global LLC | 0.19% | Add +6.2% | 40,487 | $9.0M |
| Ossiam | 0.10% | Reduce -59.2% | 40,000 | $8.9M |
| State of Wisconsin Investment Board | 0.02% | Add +14.2% | 39,980 | $8.9M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.01% | Add +4.5% | 39,054 | $8.7M |
| Sone Capital Management, LLC | 0.80% | Reduce -52.3% | 38,603 | $8.6M |
| Alliancebernstein L.P. | 0.00% | Reduce -1.3% | 38,068 | $8.5M |
| ICICI Prudential Asset Management Co Ltd | 1.05% | No change | 37,889 | $8.5M |
| Bahl & Gaynor LLC | 0.04% | Reduce -6.1% | 37,707 | $8.4M |
"% of holder's portfolio" is MKTX's weight in each manager's 13F, not the share of Marketaxess Holdings Inc. the manager owns.