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, Q2 2026
Institutional positions in Marketaxess Holdings Inc as of Jun 30, 2026. 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
- 397
- −50 vs. Q1 2026
- Shares held
- 39.1M
- +1.10M (+2.9%) vs. Q1 2026
- Total value
- $4.44B
- −$1.83B (−29.2%) vs. Q1 2026
- New holders
- 57
- 130 more added
- Sold out
- 107
- 171 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Susquehanna International Group, LLP | 32,579 | $3.70M | 0.00% | +32,579 | New |
| Squarepoint Ops LLC | 32,462 | $3.68M | 0.01% | +16,604+104.7% | Added |
| Prudential Financial Inc | 32,341 | $3.67M | 0.00% | −1,403−4.2% | Reduced |
| Elo Mutual Pension Insurance Co | 31,860 | $3.62M | 0.05% | +17,174+116.9% | Added |
| Franklin Resources Inc | 31,838 | $3.61M | 0.00% | +14,235+80.9% | Added |
| XTX Topco Ltd | 31,823 | $3.61M | 0.05% | +21,995+223.8% | Added |
| Great West Life Assurance Co | 31,755 | $3.60M | 0.01% | −2,154−6.4% | Reduced |
| Bahl & Gaynor Inc | 31,678 | $3.60M | 0.02% | −948−2.9% | Reduced |
| Fideuram Asset Management (Ireland) dac | 25,503 | $3.52M | 0.07% | +25,503 | New |
| Alps Advisors Inc | 29,762 | $3.38M | 0.02% | +867+3.0% | Added |
| Thrivent Financial for Lutherans | 29,667 | $3.37M | 0.01% | −1,474−4.7% | Reduced |
| Amundi | 29,411 | $3.34M | 0.00% | −229,297−88.6% | Reduced |
| Robertson Opportunity Capital, LLC | 28,830 | $3.27M | 1.27% | 00.0% | Unchanged |
| PDT Partners, LLC | 28,171 | $3.20M | 0.17% | +23,891+558.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 27,338 | $3.11M | 0.01% | −28,834−51.3% | Reduced |
| New York State Teachers Retirement System | 27,287 | $3.10M | 0.01% | −4,297−13.6% | Reduced |
| Geneva Capital Management LLC | 27,092 | $3.07M | 0.07% | −441−1.6% | Reduced |
| Greenwich Wealth Management LLC | 26,934 | $3.06M | 0.11% | +26,934 | New |
| Quadrature Capital Ltd | 25,185 | $2.86M | 0.02% | +25,185 | New |
| SummitTX Capital, L.P. | 24,362 | $2.76M | 0.07% | +24,362 | New |
| Caisse de Depot Et Placement du Quebec | 23,004 | $2.61M | 0.00% | −15,883−40.8% | Reduced |
| Hunter Perkins Capital Management, LLC | 22,906 | $2.60M | 0.58% | +2,914+14.6% | Added |
| Mercer Global Advisors Inc | 22,443 | $2.55M | 0.00% | −9,514−29.8% | Reduced |
| Illinois Municipal Retirement Fund | 21,988 | $2.50M | 0.03% | +1,675+8.2% | Added |
| Agf Management Ltd | 21,692 | $2.46M | 0.01% | +1,737+8.7% | Added |
| Barclays PLC | 21,499 | $2.44M | 0.00% | +7,652+55.3% | Added |
| Creative Planning | 20,448 | $2.32M | 0.00% | −2,626−11.4% | Reduced |
| New York State Common Retirement Fund | 19,865 | $2.25M | 0.00% | −314−1.6% | Reduced |
| Toroso Investments, LLC | 19,749 | $2.24M | 0.01% | +5,107+34.9% | Added |
| State of Tennessee, Treasury Department | 18,534 | $2.10M | 0.01% | +1,852+11.1% | Added |
| Alliancebernstein L.P. | 12,715 | $2.10M | 0.00% | −28,544−69.2% | Reduced |
| Intech Investment Management LLC | 17,419 | $1.98M | 0.02% | +17,419 | New |
| CenterBook Partners LP | 17,296 | $1.96M | 0.10% | +590+3.5% | Added |
| Jupiter Topco LLC | 16,600 | $1.88M | 0.00% | +16,600 | New |
| Ieq Capital, LLC | 16,146 | $1.83M | 0.01% | −157,745−90.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 15,889 | $1.80M | 0.01% | +44+0.3% | Added |
| Russell Investments Group, Ltd. | 15,734 | $1.79M | 0.00% | −3,438−17.9% | Reduced |
| Louisiana State Employees Retirement System | 15,600 | $1.77M | 0.03% | −900−5.5% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 15,561 | $1.77M | 0.00% | −11,849−43.2% | Reduced |
| Assenagon Asset Management S.A. | 15,366 | $1.74M | 0.00% | −89,435−85.3% | Reduced |
| Guardian Capital LP | 15,300 | $1.74M | 0.04% | −3,000−16.4% | Reduced |
| Treasurer of the State of North Carolina | 14,886 | $1.69M | 0.00% | −720−4.6% | Reduced |
| Paralel Advisors LLC | 14,039 | $1.59M | 0.06% | +14,039 | New |
| Man Group plc | 14,008 | $1.59M | 0.00% | +270+2.0% | Added |
| Vanguard Global Advisers, LLC | 13,665 | $1.55M | 0.00% | −1,283−8.6% | Reduced |
| Exchange Traded Concepts, LLC | 13,383 | $1.52M | 0.01% | +351+2.7% | Added |
| ExodusPoint Capital Management, LP | 13,183 | $1.50M | 0.01% | −10,792−45.0% | Reduced |
| State of New Jersey Common Pension Fund D | 12,234 | $1.39M | 0.00% | −607−4.7% | Reduced |
| Gotham Asset Management, LLC | 11,762 | $1.33M | 0.00% | −48,451−80.5% | Reduced |
| State of Alaska, Department of Revenue | 11,704 | $1.33M | 0.01% | −6,690−36.4% | Reduced |
| Sanctuary Advisors, LLC | 11,676 | $1.33M | 0.01% | −2,339−16.7% | Reduced |
| Envestnet Asset Management Inc | 11,597 | $1.32M | 0.00% | −3,689−24.1% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 11,576 | $1.31M | 0.00% | −2,529−17.9% | Reduced |
| Fred Alger Management, LLC | 11,398 | $1.29M | 0.00% | −196−1.7% | Reduced |
| Captrust Financial Advisors | 11,169 | $1.27M | 0.00% | −8,539−43.3% | Reduced |
| Caxton Associates LLP | 10,884 | $1.24M | 0.02% | +10,884 | New |
| Handelsbanken Fonder AB | 10,744 | $1.22M | 0.00% | +1,400+15.0% | Added |
| Headlands Technologies LLC | 10,603 | $1.20M | 0.13% | +10,603 | New |
| Amalgamated Bank | 10,596 | $1.20M | 0.01% | −709−6.3% | Reduced |
| denkapparat Operations GmbH | 10,562 | $1.20M | 0.39% | +7,988+310.3% | Added |
| Summit Trail Advisors, LLC | 10,375 | $1.18M | 0.01% | +1,973+23.5% | Added |
| Public Employees Retirement System of Ohio | 10,362 | $1.18M | 0.00% | −2,907−21.9% | Reduced |
| Wells Fargo & Company | 9,993 | $1.13M | 0.00% | +5,066+102.8% | Added |
| Manufacturers Life Insurance Company, The | 9,871 | $1.12M | 0.00% | +1,821+22.6% | Added |
| Arizona State Retirement System | 9,809 | $1.11M | 0.01% | −401−3.9% | Reduced |
| Fifth Third Bancorp | 9,647 | $1.09M | 0.00% | −493−4.9% | Reduced |
| Yousif Capital Management, LLC | 9,557 | $1.08M | 0.01% | −559−5.5% | Reduced |
| Vanguard Investments Australia, Ltd. | 9,410 | $1.07M | 0.00% | 00.0% | Unchanged |
| Teachers Retirement System of the State of Kentucky | 9,202 | $1.04M | 0.01% | −6,810−42.5% | Reduced |
| RNC Capital Management LLC | 9,029 | $1.02M | 0.04% | +3,911+76.4% | Added |
| Interval Partners, LP | 8,648 | $981.5K | 0.03% | −17,830−67.3% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,428 | $956.5K | 0.00% | −764−8.3% | Reduced |
| KLP Kapitalforvaltning AS | 8,200 | $930.6K | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 8,100 | $919.3K | 0.00% | −244,725−96.8% | Reduced |
| Oregon Public Employees Retirement Fund | 8,089 | $918.0K | 0.01% | −410−4.8% | Reduced |
| SRS Capital Advisors, Inc. | 7,818 | $887.3K | 0.01% | +5,520+240.2% | Added |
| Voya Investment Management LLC | 7,792 | $884.3K | 0.00% | +1,948+33.3% | Added |
| DekaBank Deutsche Girozentrale | 5,080 | $836.0K | 0.00% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 7,024 | $797.2K | 0.00% | +1,416+25.2% | Added |
| Maryland State Retirement & Pension System | 6,898 | $782.9K | 0.01% | −249−3.5% | Reduced |
| Colony Group, LLC | 6,599 | $748.9K | 0.00% | −8,455−56.2% | Reduced |
| Jain Global LLC | 6,250 | $709.3K | 0.01% | +6,250 | New |
| Twinbeech Capital LP | 6,167 | $699.9K | 0.13% | +6,167 | New |
| Toronto Dominion Bank | 6,035 | $684.0K | 0.00% | 00.0% | Unchanged |
| Stiles Financial Services Inc | 5,992 | $680.0K | 0.17% | −775−11.5% | Reduced |
| Advisor Group Holdings, Inc. | 5,849 | $664.0K | 0.00% | +519+9.7% | Added |
| Fieldview Capital Management, LLC | 5,602 | $635.8K | 0.18% | +4,192+297.3% | Added |
| Pictet Asset Management Holding SA | 5,510 | $625.3K | 0.00% | −100−1.8% | Reduced |
| Parvin Asset Management, LLC | 5,425 | $615.7K | 0.49% | −345−6.0% | Reduced |
| Lido Advisors, LLC | 5,296 | $601.0K | 0.00% | +1,745+49.1% | Added |
| Jones Financial Companies LLLP | 5,318 | $598.5K | 0.00% | −1,356−20.3% | Reduced |
| Chicago Partners Investment Group LLC | 5,210 | $595.5K | 0.01% | +1,305+33.4% | Added |
| CSS LLC | 5,030 | $570.9K | 0.03% | +5,030 | New |
| Schonfeld Strategic Advisors LLC | 4,911 | $557.3K | 0.00% | −37,685−88.5% | Reduced |
| CI Private Wealth, LLC | 4,834 | $548.6K | 0.00% | +2,442+102.1% | Added |
| EntryPoint Capital, LLC | 4,737 | $537.6K | 0.13% | +4,737 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 4,716 | $535.2K | 0.00% | +1,102+30.5% | Added |
| SG Americas Securities, LLC | 4,536 | $515.0K | 0.00% | −1,496−24.8% | Reduced |
| New York Life Investment Management LLC | 4,472 | $507.5K | 0.00% | +27+0.6% | Added |
| Mutual of America Capital Management LLC | 4,415 | $501.1K | 0.00% | +161+3.8% | Added |