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 |
|---|---|---|---|---|---|
| Winton Group Ltd | 12,514 | $2.18M | 0.08% | −1,994−13.7% | Reduced |
| Public Employees Retirement System of Ohio | 12,523 | $2.18M | 0.01% | +83+0.7% | Added |
| Cinctive Capital Management LP | 12,916 | $2.25M | 0.11% | −6,359−33.0% | Reduced |
| State of New Jersey Common Pension Fund D | 12,917 | $2.25M | 0.01% | +128+1.0% | Added |
| Assenagon Asset Management S.A. | 12,984 | $2.26M | 0.00% | −160,908−92.5% | Reduced |
| Fred Alger Management, LLC | 13,098 | $2.28M | 0.01% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 13,189 | $2.30M | 0.00% | −9,613−42.2% | Reduced |
| Gotham Asset Management, LLC | 13,332 | $2.32M | 0.01% | +118+0.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 13,424 | $2.34M | 0.01% | +263+2.0% | Added |
| Lecap Asset Management Ltd | 13,659 | $2.38M | 0.83% | +5,201+61.5% | Added |
| ING Groep NV | 13,700 | $2.39M | 0.01% | +11,886+655.2% | Added |
| Hudson Bay Capital Management LP | 13,973 | $2.43M | 0.01% | +13,973 | New |
| Van Den Berg Management I, Inc | 14,017 | $2.44M | 0.61% | +14,017 | New |
| Bank of Nova Scotia | 14,059 | $2.45M | 0.00% | −94,422−87.0% | Reduced |
| SEI Investments Co | 14,698 | $2.56M | 0.00% | −48,482−76.7% | Reduced |
| Walleye Capital LLC | 15,281 | $2.66M | 0.02% | −180,046−92.2% | Reduced |
| American Century Companies Inc | 15,483 | $2.70M | 0.00% | −471,714−96.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,072 | $2.80M | 0.02% | +2,130+15.3% | Added |
| Toroso Investments, LLC | 16,076 | $2.80M | 0.01% | +3,635+29.2% | Added |
| Magnetar Financial LLC | 16,232 | $2.83M | 0.02% | −15,649−49.1% | Reduced |
| Treasurer of the State of North Carolina | 16,391 | $2.86M | 0.01% | −634−3.7% | Reduced |
| Alamar Capital Management, LLC | 16,832 | $2.93M | 1.55% | +80+0.5% | Added |
| Agf Management Ltd | 16,838 | $2.93M | 0.01% | +2,524+17.6% | Added |
| ExodusPoint Capital Management, LP | 16,925 | $2.95M | 0.04% | +16,925 | New |
| Vident Advisory, LLC | 17,053 | $2.97M | 0.03% | +17,053 | New |
| Louisiana State Employees Retirement System | 17,200 | $3.00M | 0.05% | +15,200+760.0% | Added |
| Alliancebernstein L.P. | 17,903 | $3.12M | 0.00% | −20,165−53.0% | Reduced |
| Elo Mutual Pension Insurance Co | 18,164 | $3.17M | 0.05% | +18,164 | New |
| Bank of Montreal | 18,337 | $3.20M | 0.00% | −14,713−44.5% | Reduced |
| State of Alaska, Department of Revenue | 18,800 | $3.27M | 0.03% | +14,585+346.0% | Added |
| D.A. Davidson & Co. | 18,835 | $3.28M | 0.02% | +585+3.2% | Added |
| Taylor Hoffman Capital Management LLC | 19,287 | $3.36M | 1.06% | +19,287 | New |
| New York State Common Retirement Fund | 20,119 | $3.51M | 0.00% | −1,200−5.6% | Reduced |
| Grandeur Peak Global Advisors, LLC | 20,408 | $3.56M | 0.48% | −4,138−16.9% | Reduced |
| State of Tennessee, Treasury Department | 21,137 | $3.68M | 0.01% | +12,505+144.9% | Added |
| Envestnet Asset Management Inc | 23,298 | $4.06M | 0.00% | −38,359−62.2% | Reduced |
| Geneva Capital Management LLC | 24,028 | $4.19M | 0.07% | +59+0.2% | Added |
| SG Americas Securities, LLC | 24,149 | $4.21M | 0.02% | −7,638−24.0% | Reduced |
| Interval Partners, LP | 24,194 | $4.22M | 0.09% | −7,920−24.7% | Reduced |
| Point72 Hong Kong Ltd | 24,351 | $4.24M | 0.20% | +17,589+260.1% | Added |
| Quadrature Capital Ltd | 24,639 | $4.29M | 0.05% | +13,653+124.3% | Added |
| Stifel Financial Corp | 25,537 | $4.45M | 0.00% | +14+0.1% | Added |
| CWM, LLC | 26,046 | $4.54M | 0.01% | +6,934+36.3% | Added |
| Cerity Partners LLC | 29,089 | $5.07M | 0.01% | +1,048+3.7% | Added |
| Victory Capital Management Inc | 30,350 | $5.29M | 0.00% | +24,950+462.0% | Added |
| GW&K Investment Management, LLC | 30,621 | $5.33M | 0.05% | −113,395−78.7% | Reduced |
| Morningstar Investment Management LLC | 30,976 | $5.40M | 0.20% | +30,976 | New |
| Envestnet Portfolio Solutions, Inc. | 31,477 | $5.48M | 0.02% | −2,543−7.5% | Reduced |
| Teacher Retirement System of Texas | 31,564 | $5.50M | 0.02% | +2,006+6.8% | Added |
| Price T Rowe Associates Inc | 31,594 | $5.51M | 0.00% | −27,884−46.9% | Reduced |
| Thrivent Financial for Lutherans | 31,949 | $5.57M | 0.01% | +16,796+110.8% | Added |
| Alps Advisors Inc | 32,267 | $5.62M | 0.03% | −14,443−30.9% | Reduced |
| Ieq Capital, LLC | 32,662 | $5.69M | 0.02% | −28,973−47.0% | Reduced |
| Guardian Capital LP | 33,597 | $5.85M | 0.19% | +7,297+27.7% | Added |
| Brevan Howard Capital Management LP | 33,942 | $5.91M | 0.08% | +15,217+81.3% | Added |
| First Citizens Bank & Trust Co | 34,267 | $5.97M | 0.13% | −1,433−4.0% | Reduced |
| Weiss Asset Management LP | 34,404 | $5.99M | 0.09% | +34,404 | New |
| State of Wisconsin Investment Board | 34,723 | $6.05M | 0.01% | −5,257−13.1% | Reduced |
| Natixis | 35,026 | $6.10M | 0.03% | −24,726−41.4% | Reduced |
| Barclays PLC | 35,172 | $6.13M | 0.00% | −104,908−74.9% | Reduced |
| California State Teachers Retirement System | 35,931 | $6.26M | 0.01% | −40−0.1% | Reduced |
| New York State Teachers Retirement System | 36,218 | $6.31M | 0.01% | +6,725+22.8% | Added |
| State Board of Administration of Florida Retirement System | 36,321 | $6.33M | 0.01% | −555−1.5% | Reduced |
| Bahl & Gaynor Inc | 36,471 | $6.36M | 0.03% | −1,236−3.3% | Reduced |
| Gillson Capital LP | 37,500 | $6.53M | 0.57% | +37,500 | New |
| Prospector Partners LLC | 37,965 | $6.62M | 0.80% | +37,965 | New |
| Jefferies Financial Group Inc. | 38,093 | $6.64M | 0.06% | +31,093+444.2% | Added |
| Great West Life Assurance Co | 38,296 | $6.80M | 0.01% | +22,186+137.7% | Added |
| Jump Financial, LLC | 39,513 | $6.89M | 0.09% | +28,405+255.7% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 14,250 | $6.91M | 0.35% | −10,500−42.4% | Reduced |
| Polar Asset Management Partners Inc. | 40,246 | $7.01M | 0.14% | +40,246 | New |
| Trexquant Investment LP | 40,385 | $7.04M | 0.07% | −9,031−18.3% | Reduced |
| Engineers Gate Manager LP | 42,002 | $7.32M | 0.08% | −3,186−7.1% | Reduced |
| DF Dent & Co Inc | 42,006 | $7.32M | 0.09% | −4,120−8.9% | Reduced |
| Aquatic Capital Management LLC | 42,032 | $7.32M | 0.14% | +9,585+29.5% | Added |
| ICICI Prudential Asset Management Co Ltd | 47,089 | $8.21M | 0.87% | +9,200+24.3% | Added |
| Wilson Asset Management (International) Pty Ltd | 50,190 | $8.75M | 2.16% | −10,302−17.0% | Reduced |
| Citigroup Inc | 52,887 | $9.22M | 0.01% | +4,639+9.6% | Added |
| Los Angeles Capital Management LLC | 53,590 | $9.34M | 0.03% | −2,833−5.0% | Reduced |
| Robeco Institutional Asset Management B.V. | 60,000 | $10.5M | 0.02% | −15,000−20.0% | Reduced |
| Prana Capital Management, LP | 61,323 | $10.7M | 0.36% | +30,508+99.0% | Added |
| Qube Research & Technologies Ltd | 64,825 | $11.3M | 0.02% | −24,956−27.8% | Reduced |
| Quantbot Technologies LP | 70,136 | $12.2M | 0.33% | +70,136 | New |
| Goodman Financial Corp | 72,370 | $12.6M | 2.46% | −1,060−1.4% | Reduced |
| Swiss National Bank | 72,700 | $12.7M | 0.01% | +700+1.0% | Added |
| Freestone Grove Partners LP | 75,388 | $13.1M | 0.10% | +73,086+3,174.9% | Added |
| Invesco Ltd. | 76,327 | $13.3M | 0.00% | −776,886−91.1% | Reduced |
| Algert Global LLC | 76,861 | $13.4M | 0.22% | +36,374+89.8% | Added |
| Flossbach Von Storch AG | 79,000 | $13.8M | 0.05% | +56,000+243.5% | Added |
| Ameriprise Financial Inc | 83,355 | $14.5M | 0.00% | +66,837+404.6% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 85,158 | $14.8M | 0.03% | +69,262+435.7% | Added |
| Sone Capital Management, LLC | 86,668 | $15.1M | 1.26% | +48,065+124.5% | Added |
| Man Group plc | 87,103 | $15.2M | 0.03% | −3,642−4.0% | Reduced |
| Squarepoint Ops LLC | 88,154 | $15.4M | 0.03% | +69,787+380.0% | Added |
| Rhumbline Advisers | 90,447 | $15.8M | 0.01% | +13,413+17.4% | Added |
| TD Asset Management Inc | 96,040 | $16.7M | 0.01% | −79,356−45.2% | Reduced |
| Susquehanna International Group, LLP | 97,704 | $17.0M | 0.02% | +67,554+224.1% | Added |
| Legal & General Group Plc | 100,606 | $17.5M | 0.00% | +23,783+31.0% | Added |
| HRT Financial LP | 103,793 | $18.1M | 0.07% | +48,478+87.6% | Added |
| UBS Asset Management Americas Inc | 111,914 | $19.5M | 0.00% | −72,321−39.3% | Reduced |