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, Q4 2025
Institutional positions in Marketaxess Holdings Inc as of Dec 31, 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
- 487
- +47 vs. Q3 2025
- Shares held
- 36.5M
- +1.81M (+5.2%) vs. Q3 2025
- Total value
- $6.62B
- +$566.0M (+9.4%) vs. Q3 2025
- New holders
- 118
- 155 more added
- Sold out
- 71
- 171 more reduced
12 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Stiles Financial Services Inc | 6,975 | $1.26M | 0.39% | −1,420−16.9% | Reduced |
| Maryland State Retirement & Pension System | 7,181 | $1.30M | 0.03% | +81+1.1% | Added |
| Alpha Omega Wealth Management LLC | 7,315 | $1.33M | 0.22% | +7,315 | New |
| Krilogy Financial LLC | 7,807 | $1.34M | 0.05% | +2,636+51.0% | Added |
| MUFG Securities EMEA plc | 7,530 | $1.36M | 0.02% | +7,530 | New |
| Dockside LLC | 7,619 | $1.38M | 0.35% | +7,619 | New |
| Evolve Private Wealth, LLC | 7,738 | $1.40M | 0.08% | +7,738 | New |
| Integrated Wealth Concepts LLC | 7,960 | $1.44M | 0.02% | +7,960 | New |
| KLP Kapitalforvaltning AS | 8,000 | $1.45M | 0.01% | +200+2.6% | Added |
| Comerica Bank | 8,072 | $1.46M | 0.01% | −2,337−22.5% | Reduced |
| Manufacturers Life Insurance Company, The | 8,115 | $1.47M | 0.00% | −1,296−13.8% | Reduced |
| Oregon Public Employees Retirement Fund | 8,544 | $1.55M | 0.02% | +144+1.7% | Added |
| Teachers Retirement System of the State of Kentucky | 9,202 | $1.67M | 0.01% | +1,314+16.7% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 9,203 | $1.67M | 0.01% | −313−3.3% | Reduced |
| Verition Fund Management LLC | 9,341 | $1.69M | 0.01% | +1,349+16.9% | Added |
| Handelsbanken Fonder AB | 9,344 | $1.69M | 0.01% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 10,142 | $1.75M | 0.02% | −1,565−13.4% | Reduced |
| Oak Thistle LLC | 9,892 | $1.79M | 0.25% | −512−4.9% | Reduced |
| CIBC World Markets Inc. | 10,253 | $1.86M | 0.00% | +2,126+26.2% | Added |
| Walled Lake Planning & Wealth Management, LLC | 10,332 | $1.87M | 0.59% | +171+1.7% | Added |
| Arizona State Retirement System | 10,342 | $1.87M | 0.01% | −746−6.7% | Reduced |
| Sone Capital Management, LLC | 10,355 | $1.88M | 0.15% | −76,313−88.1% | Reduced |
| Jump Financial, LLC | 10,557 | $1.91M | 0.02% | −28,956−73.3% | Reduced |
| Lecap Asset Management Ltd | 10,596 | $1.92M | 0.76% | −3,063−22.4% | Reduced |
| Franklin Resources Inc | 10,806 | $1.96M | 0.00% | +10,806 | New |
| Gator Capital Management, LLC | 11,119 | $2.02M | 0.42% | +11,119 | New |
| SG Americas Securities, LLC | 11,432 | $2.07M | 0.00% | −12,717−52.7% | Reduced |
| Lazard Asset Management LLC | 11,460 | $2.08M | 0.00% | −545−4.5% | Reduced |
| Fred Alger Management, LLC | 11,649 | $2.11M | 0.01% | −1,449−11.1% | Reduced |
| Amalgamated Bank | 11,726 | $2.13M | 0.02% | +6+0.1% | Added |
| Los Angeles Capital Management LLC | 13,613 | $2.18M | 0.01% | −39,977−74.6% | Reduced |
| Jane Street Group, LLC | 12,392 | $2.25M | 0.00% | −155,230−92.6% | Reduced |
| Exchange Traded Concepts, LLC | 12,579 | $2.28M | 0.02% | +7,798+163.1% | Added |
| Bridgefront Capital, LLC | 12,659 | $2.29M | 0.58% | +5,493+76.7% | Added |
| Public Employees Retirement System of Ohio | 12,706 | $2.30M | 0.01% | +183+1.5% | Added |
| Hudson Bay Capital Management LP | 13,054 | $2.37M | 0.01% | −919−6.6% | Reduced |
| Buckingham Strategic Partners | 13,082 | $2.37M | 0.03% | +4,942+60.7% | Added |
| Bank of Nova Scotia | 13,183 | $2.39M | 0.00% | −876−6.2% | Reduced |
| State of New Jersey Common Pension Fund D | 13,183 | $2.39M | 0.01% | +266+2.1% | Added |
| Bridgewater Associates, LP | 13,261 | $2.40M | 0.01% | +13,261 | New |
| Merit Financial Group, LLC | 13,374 | $2.42M | 0.02% | +10,993+461.7% | Added |
| SummitTX Capital, L.P. | 13,612 | $2.47M | 0.07% | +11,784+644.6% | Added |
| Pallas Capital Advisors LLC | 13,624 | $2.47M | 0.08% | +10,203+298.2% | Added |
| Sanctuary Advisors, LLC | 14,131 | $2.56M | 0.01% | +2,079+17.3% | Added |
| Colony Group, LLC | 14,146 | $2.56M | 0.00% | +9,368+196.1% | Added |
| SEI Investments Co | 14,184 | $2.57M | 0.00% | −514−3.5% | Reduced |
| XTX Topco Ltd | 14,232 | $2.58M | 0.07% | +12,909+975.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,441 | $2.62M | 0.01% | +1,017+7.6% | Added |
| American Century Companies Inc | 15,081 | $2.73M | 0.00% | −402−2.6% | Reduced |
| Creative Planning | 15,261 | $2.77M | 0.00% | +5,591+57.8% | Added |
| Treasurer of the State of North Carolina | 15,269 | $2.77M | 0.01% | −1,122−6.8% | Reduced |
| Alamar Capital Management, LLC | 15,612 | $2.83M | 1.56% | −1,220−7.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 15,845 | $2.87M | 0.02% | −227−1.4% | Reduced |
| Toroso Investments, LLC | 15,905 | $2.88M | 0.01% | −171−1.1% | Reduced |
| State of Tennessee, Treasury Department | 17,573 | $2.97M | 0.01% | −3,564−16.9% | Reduced |
| Ensign Peak Advisors, Inc | 16,662 | $3.02M | 0.01% | +3,473+26.3% | Added |
| Polar Asset Management Partners Inc. | 16,700 | $3.03M | 0.06% | −23,546−58.5% | Reduced |
| Louisiana State Employees Retirement System | 17,000 | $3.08M | 0.05% | −200−1.2% | Reduced |
| Hunter Perkins Capital Management, LLC | 17,202 | $3.12M | 0.72% | +17,202 | New |
| Agf Management Ltd | 17,972 | $3.26M | 0.01% | +1,134+6.7% | Added |
| Captrust Financial Advisors | 18,254 | $3.31M | 0.01% | +13,822+311.9% | Added |
| State of Alaska, Department of Revenue | 18,923 | $3.43M | 0.04% | +123+0.7% | Added |
| Illinois Municipal Retirement Fund | 18,941 | $3.43M | 0.04% | +18,941 | New |
| Vident Advisory, LLC | 18,984 | $3.44M | 0.03% | +1,931+11.3% | Added |
| Baird Financial Group, Inc. | 19,344 | $3.51M | 0.01% | −152,039−88.7% | Reduced |
| D.A. Davidson & Co. | 20,234 | $3.67M | 0.02% | +1,399+7.4% | Added |
| FJ Capital Management LLC | 20,252 | $3.67M | 0.41% | +20,252 | New |
| New York State Common Retirement Fund | 20,262 | $3.67M | 0.00% | +143+0.7% | Added |
| Alliancebernstein L.P. | 20,549 | $3.72M | 0.00% | +2,646+14.8% | Added |
| Russell Investments Group, Ltd. | 21,119 | $3.83M | 0.00% | +10,063+91.0% | Added |
| Aquatic Capital Management LLC | 21,263 | $3.85M | 0.11% | −20,769−49.4% | Reduced |
| Caisse de Depot Et Placement du Quebec | 22,484 | $4.08M | 0.01% | +22,484 | New |
| Cinctive Capital Management LP | 22,853 | $4.14M | 0.24% | +9,937+76.9% | Added |
| Morningstar Investment Management LLC | 23,007 | $4.17M | 0.25% | −7,969−25.7% | Reduced |
| Readystate Asset Management LP | 23,373 | $4.24M | 0.19% | +23,373 | New |
| Lombard Odier Asset Management (Europe) Ltd | 23,500 | $4.26M | 0.22% | +9,250+64.9% | Added |
| Taylor Hoffman Capital Management LLC | 23,583 | $4.27M | 1.30% | +4,296+22.3% | Added |
| Tudor Investment Corp Et Al | 23,589 | $4.28M | 0.02% | −106,169−81.8% | Reduced |
| Guardian Capital LP | 23,700 | $4.30M | 0.13% | −9,897−29.5% | Reduced |
| Robeco Institutional Asset Management B.V. | 25,000 | $4.53M | 0.01% | −35,000−58.3% | Reduced |
| Geneva Capital Management LLC | 27,446 | $4.97M | 0.09% | +3,418+14.2% | Added |
| Barclays PLC | 27,902 | $5.06M | 0.00% | −7,270−20.7% | Reduced |
| Heartland Advisors Inc | 28,421 | $5.15M | 0.28% | +28,421 | New |
| Amundi | 28,621 | $5.19M | 0.00% | −149,773−84.0% | Reduced |
| Gotham Asset Management, LLC | 28,722 | $5.21M | 0.02% | +15,390+115.4% | Added |
| Robertson Opportunity Capital, LLC | 28,830 | $5.23M | 1.90% | +28,830 | New |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 29,307 | $5.31M | 0.19% | +29,307 | New |
| Man Group plc | 29,373 | $5.32M | 0.01% | −57,730−66.3% | Reduced |
| Mercer Global Advisors Inc | 29,599 | $5.36M | 0.01% | +20,566+227.7% | Added |
| Royal Bank of Canada | 30,307 | $5.49M | 0.00% | −123,359−80.3% | Reduced |
| Van Den Berg Management I, Inc | 30,399 | $5.51M | 1.26% | +16,382+116.9% | Added |
| GW&K Investment Management, LLC | 30,579 | $5.54M | 0.05% | −42−0.1% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 30,694 | $5.56M | 0.01% | −54,464−64.0% | Reduced |
| Citigroup Inc | 31,396 | $5.69M | 0.00% | −21,491−40.6% | Reduced |
| Thrivent Financial for Lutherans | 31,873 | $5.78M | 0.01% | −76−0.2% | Reduced |
| Picton Mahoney Asset Management | 32,396 | $5.87M | 0.06% | +32,396 | New |
| Balyasny Asset Management LLC | 32,695 | $5.93M | 0.01% | +32,695 | New |
| Stifel Financial Corp | 33,224 | $6.02M | 0.01% | +7,687+30.1% | Added |
| State of Wisconsin Investment Board | 33,390 | $6.05M | 0.01% | −1,333−3.8% | Reduced |
| Susquehanna International Group, LLP | 33,473 | $6.07M | 0.01% | −64,231−65.7% | Reduced |