Marketaxess Holdings Inc
MKTX- Exchange
- Nasdaq
- Industry
- Security Brokers, Dealers & Flotation Companies
- SEC CIK
- 0001278021
In the last 90 days, Marketaxess Holdings Inc insiders filed 0 open-market purchases and 4 sales; 397 institutions reported holding it in 13F filings for Q2 2026, worth $4.44B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Marketaxess Holdings Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 452
- −72 vs. Q2 2025
- Shares held
- 35.6M
- −763.0K (−2.1%) vs. Q2 2025
- Total value
- $6.21B
- −$1.90B (−23.5%) vs. Q2 2025
- New holders
- 64
- 160 more added
- Sold out
- 136
- 185 more reduced
7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MKTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 397 | $4.44B |
| Q1 2026 | 452 | $6.31B |
| Q4 2025 | 487 | $6.62B |
| Q3 2025 | 452 | $6.21B |
| Q2 2025 | 531 | $8.24B |
| Q1 2025 | 511 | $8.05B |
| Q4 2024 | 519 | $8.51B |
| Q3 2024 | 511 | $9.42B |
| Q2 2024 | 468 | $7.48B |
| Q1 2024 | 463 | $8.14B |
| Q4 2023 | 506 | $10.9B |
| Q3 2023 | 485 | $7.98B |
| Q2 2023 | 514 | $9.88B |
| Q1 2023 | 540 | $14.5B |
| Q4 2022 | 500 | $10.3B |
| Q3 2022 | 479 | $8.19B |
| Q2 2022 | 505 | $9.28B |
| Q1 2022 | 506 | $12.4B |
| Q4 2021 | 505 | $15.0B |
| Q3 2021 | 508 | $15.3B |
| Q2 2021 | 551 | $16.8B |
| Q1 2021 | 589 | $17.7B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Prudential Financial Inc | 115,156 | $20.1M | 0.02% | +16,885+17.2% | Added |
| California Public Employees Retirement System | 116,936 | $20.4M | 0.01% | −3,711−3.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 120,161 | $20.9M | 0.15% | +87,294+265.6% | Added |
| Canada Pension Plan Investment Board | 120,400 | $21.0M | 0.01% | +39,111+48.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 126,015 | $22.0M | 0.07% | +7,784+6.6% | Added |
| Tudor Investment Corp Et Al | 129,758 | $22.6M | 0.15% | +36,604+39.3% | Added |
| Goldman Sachs Group Inc | 133,651 | $23.3M | 0.00% | +7,302+5.8% | Added |
| Nuveen, LLC | 134,910 | $23.5M | 0.01% | −24,257−15.2% | Reduced |
| Janus Henderson Group PLC | 145,194 | $25.3M | 0.01% | +9,157+6.7% | Added |
| Public Sector Pension Investment Board | 145,743 | $25.4M | 0.09% | +138,029+1,789.3% | Added |
| Cubist Systematic Strategies, LLC | 152,726 | $26.6M | 0.38% | +94,682+163.1% | Added |
| Royal Bank of Canada | 153,666 | $26.8M | 0.00% | −42,942−21.8% | Reduced |
| Bank of America Corp | 161,752 | $28.2M | 0.00% | −98,000−37.7% | Reduced |
| Point72 Asset Management, L.P. | 163,900 | $28.6M | 0.06% | +108,432+195.5% | Added |
| Baillie Gifford & Co | 164,198 | $28.6M | 0.02% | −22,491−12.0% | Reduced |
| Jane Street Group, LLC | 167,622 | $29.2M | 0.03% | +70,843+73.2% | Added |
| Baird Financial Group, Inc. | 171,383 | $29.9M | 0.05% | −54,917−24.3% | Reduced |
| Amundi | 178,394 | $29.9M | 0.01% | −43,408−19.6% | Reduced |
| Two Sigma Advisers, LP | 174,200 | $30.4M | 0.06% | −69,200−28.4% | Reduced |
| Raymond James Financial Inc | 174,868 | $30.5M | 0.01% | −19,598−10.1% | Reduced |
| Principal Financial Group Inc | 184,857 | $32.2M | 0.02% | +133,260+258.3% | Added |
| D. E. Shaw & Co., Inc. | 185,618 | $32.3M | 0.03% | +16,720+9.9% | Added |
| Voloridge Investment Management, LLC | 189,772 | $33.1M | 0.11% | +120,746+174.9% | Added |
| Northern Trust Corp | 234,464 | $40.9M | 0.01% | −71,100−23.3% | Reduced |
| Renaissance Technologies LLC | 245,000 | $42.7M | 0.06% | +54,400+28.5% | Added |
| UBS Group AG | 260,261 | $45.4M | 0.01% | +57,794+28.5% | Added |
| Arrowstreet Capital, Limited Partnership | 260,461 | $45.4M | 0.03% | +10,424+4.2% | Added |
| Holocene Advisors, LP | 280,445 | $48.9M | 0.11% | +203,871+266.2% | Added |
| RDST Capital LLC | 281,547 | $49.1M | 4.62% | +172,542+158.3% | Added |
| Citadel Advisors LLC | 310,086 | $54.0M | 0.04% | −41,080−11.7% | Reduced |
| Charles Schwab Investment Management Inc | 315,148 | $54.9M | 0.01% | −51,319−14.0% | Reduced |
| Two Sigma Investments, LP | 364,384 | $63.5M | 0.10% | +84,295+30.1% | Added |
| Bank of New York Mellon Corp | 376,550 | $65.6M | 0.01% | +521+0.1% | Added |
| JPMorgan Chase & Co | 447,925 | $78.1M | 0.00% | +28,881+6.9% | Added |
| BNP Paribas Arbitrage, SA | 486,106 | $84.7M | 0.07% | +400,691+469.1% | Added |
| Dimensional Fund Advisors LP | 521,129 | $90.8M | 0.02% | +9,707+1.9% | Added |
| Morgan Stanley | 549,023 | $95.7M | 0.01% | +124,216+29.2% | Added |
| Millennium Management LLC | 607,556 | $105.9M | 0.08% | +175,374+40.6% | Added |
| Findlay Park Partners LLP | 644,700 | $112.3M | 1.18% | −11,600−1.8% | Reduced |
| Burgundy Asset Management Ltd. | 692,216 | $127.3M | 1.20% | +277,846+67.1% | Added |
| Geode Capital Management, LLC | 830,996 | $144.8M | 0.01% | −310,202−27.2% | Reduced |
| North Reef Capital Management LP | 911,358 | $158.8M | 7.43% | +491,358+117.0% | Added |
| AQR Capital Management LLC | 951,088 | $165.7M | 0.11% | +192,626+25.4% | Added |
| State Street Corp | 1,320,657 | $230.1M | 0.01% | −212,039−13.8% | Reduced |
| Guardcap Asset Management Ltd | 1,361,264 | $237.2M | 5.50% | −137,094−9.1% | Reduced |
| T. Rowe Price Investment Management, Inc. | 1,370,694 | $238.8M | 0.15% | −961,294−41.2% | Reduced |
| HSBC Holdings PLC | 1,798,766 | $315.4M | 0.19% | +1,740,316+2,977.4% | Added |
| BlackRock, Inc. | 1,850,409 | $322.4M | 0.01% | −799,477−30.2% | Reduced |
| Van Eck Associates Corp | 1,948,633 | $339.5M | 0.32% | +119,036+6.5% | Added |
| FMR LLC | 2,143,921 | $373.6M | 0.02% | −188,225−8.1% | Reduced |
| Primecap Management Co | 2,230,595 | $388.7M | 0.30% | +891,303+66.6% | Added |
| Vanguard Group Inc | 3,854,312 | $671.6M | 0.01% | −505,060−11.6% | Reduced |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Activest Wealth Management | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Congress Asset Management Co | 0 | $0 | 0.00% | −286,276−100.0% | Sold out |
| Savant Capital, LLC | 0 | $0 | 0.00% | −116,266−100.0% | Sold out |
| Westwood Holdings Group Inc. | 0 | $0 | 0.00% | −83,495−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −83,019−100.0% | Sold out |
| Candriam Luxembourg S.C.A. | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Kingsview Wealth Management, LLC | 0 | $0 | 0.00% | −41,402−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Wasatch Advisors Inc | 0 | $0 | 0.00% | −36,532−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −34,350−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −34,216−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −33,702−100.0% | Sold out |
| Caisse de Depot Et Placement du Quebec | 0 | $0 | 0.00% | −25,267−100.0% | Sold out |
| Natixis Advisors, L.P. | 0 | $0 | 0.00% | −21,575−100.0% | Sold out |
| Chevy Chase Trust Holdings, Inc. | 0 | $0 | 0.00% | −19,809−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −19,261−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −18,300−100.0% | Sold out |
| Jackson Square Partners, LLC | 0 | $0 | 0.00% | −16,274−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −15,843−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −12,469−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −10,956−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −10,848−100.0% | Sold out |
| State of Michigan Retirement System | 0 | $0 | 0.00% | −10,193−100.0% | Sold out |
| Czech National Bank | 0 | $0 | 0.00% | −9,164−100.0% | Sold out |
| Pine Valley Investments Ltd Liability Co | 0 | $0 | 0.00% | −9,149−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −8,810−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −8,284−100.0% | Sold out |
| Retirement Systems of Alabama | 0 | $0 | 0.00% | −8,046−100.0% | Sold out |
| UniSuper Management Pty Ltd | 0 | $0 | 0.00% | −7,751−100.0% | Sold out |
| Callahan Advisors, LLC | 0 | $0 | 0.00% | −5,500−100.0% | Sold out |
| Oddo BHF Asset Management SAS | 0 | $0 | 0.00% | −5,458−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −5,079−100.0% | Sold out |
| Ontario Teachers Pension Plan Board | 0 | $0 | 0.00% | −5,007−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −4,805−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −4,681−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −4,470−100.0% | Sold out |
| Brinker Capital Investments, LLC | 0 | $0 | 0.00% | −4,203−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −4,052−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −3,571−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −3,445−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −3,438−100.0% | Sold out |
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −3,397−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −3,148−100.0% | Sold out |
| Ethic Inc. | 0 | $0 | 0.00% | −3,104−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −2,599−100.0% | Sold out |
| Mizuho Securities USA LLC | 0 | $0 | 0.00% | −2,593−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −2,568−100.0% | Sold out |