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 2025
Institutional positions in Marketaxess Holdings Inc as of Jun 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
- 531
- +27 vs. Q1 2025
- Shares held
- 36.9M
- −208.8K (−0.6%) vs. Q1 2025
- Total value
- $8.24B
- +$209.3M (+2.6%) vs. Q1 2025
- New holders
- 85
- 229 more added
- Sold out
- 58
- 159 more reduced
7 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Maryland State Retirement & Pension System | 1,726 | $385.5K | 0.01% | 00.0% | Unchanged |
| Bridgefront Capital, LLC | 1,727 | $385.7K | 0.10% | +1,727 | New |
| HB Wealth Management, LLC | 1,736 | $387.7K | 0.00% | +351+25.3% | Added |
| R Squared Ltd | 1,737 | $387.9K | 0.21% | +1,737 | New |
| MML Investors Services, LLC | 1,737 | $388.0K | 0.00% | −1,938−52.7% | Reduced |
| Essential Partners LLC | 1,746 | $390.0K | 0.16% | +1,746 | New |
| New Mexico Educational Retirement Board | 1,750 | $391.0K | 0.01% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 1,812 | $404.7K | 0.00% | +26+1.5% | Added |
| ING Groep NV | 1,814 | $405.1K | 0.00% | +123+7.3% | Added |
| Sivia Capital Partners, LLC | 1,818 | $406.0K | 0.14% | +1,818 | New |
| Axq Capital, LP | 1,825 | $407.6K | 0.13% | +783+75.1% | Added |
| Horizon Kinetics Asset Management LLC | 1,874 | $418.5K | 0.00% | +380+25.4% | Added |
| X-Square Capital, LLC | 1,874 | $419.0K | 0.15% | +133+7.6% | Added |
| XTX Topco Ltd | 1,877 | $419.2K | 0.02% | −7,654−80.3% | Reduced |
| Optimize Financial Inc | 1,900 | $424.3K | 0.26% | −12−0.6% | Reduced |
| Swiss Life Asset Management Ltd | 1,908 | $426.1K | 0.00% | −1,942−50.4% | Reduced |
| Securian Asset Management, Inc | 1,933 | $431.7K | 0.01% | 00.0% | Unchanged |
| Amica Mutual Insurance Co | 1,951 | $436.0K | 0.04% | 00.0% | Unchanged |
| Teza Capital Management LLC | 1,956 | $436.9K | 0.33% | +692+54.7% | Added |
| HighTower Advisors, LLC | 1,958 | $437.4K | 0.00% | −566−22.4% | Reduced |
| Bayforest Capital Ltd | 1,970 | $440.0K | 0.19% | −1,392−41.4% | Reduced |
| Knollwood Investment Advisory, LLC | 1,979 | $442.0K | 0.04% | 00.0% | Unchanged |
| GAMMA Investing LLC | 1,985 | $443.3K | 0.03% | +1,137+134.1% | Added |
| Pathstone Holdings, LLC | 1,991 | $444.6K | 0.00% | +226+12.8% | Added |
| Louisiana State Employees Retirement System | 2,000 | $446.7K | 0.01% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 2,023 | $451.8K | 0.00% | +409+25.3% | Added |
| RMR Wealth Builders | 2,025 | $452.3K | 0.04% | +68+3.5% | Added |
| Assetmark, Inc | 2,029 | $453.2K | 0.00% | +863+74.0% | Added |
| Gateway Investment Advisers LLC | 2,051 | $458.1K | 0.01% | +2,051 | New |
| Franklin Resources Inc | 2,059 | $459.9K | 0.00% | −2,961−59.0% | Reduced |
| Entropy Technologies, LP | 2,090 | $466.8K | 0.04% | +2,090 | New |
| Versor Investments LP | 2,096 | $468.1K | 0.08% | +2,096 | New |
| 111 Capital | 2,127 | $475.0K | 0.08% | +279+15.1% | Added |
| Norinchukin Bank, The | 2,153 | $480.9K | 0.01% | +185+9.4% | Added |
| Aviva PLC | 2,158 | $482.0K | 0.00% | −818−27.5% | Reduced |
| CI Private Wealth, LLC | 2,214 | $494.5K | 0.00% | +2,214 | New |
| Dundas Partners LLP | 2,239 | $500.1K | 0.03% | −328−12.8% | Reduced |
| M&T Bank Corp | 2,247 | $501.8K | 0.00% | +491+28.0% | Added |
| Exchange Capital Management, Inc. | 2,270 | $507.0K | 0.08% | +205+9.9% | Added |
| Hartford Investment Management Co | 2,279 | $509.0K | 0.02% | −19−0.8% | Reduced |
| EntryPoint Capital, LLC | 2,287 | $510.8K | 0.26% | −88−3.7% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 2,291 | $511.7K | 0.02% | −7−0.3% | Reduced |
| Freestone Grove Partners LP | 2,302 | $514.1K | 0.00% | +2,302 | New |
| Standard Life Aberdeen plc | 2,319 | $517.9K | 0.00% | −305−11.6% | Reduced |
| Quarry LP | 2,406 | $537.4K | 0.12% | +2,050+575.8% | Added |
| Point72 (DIFC) Ltd | 2,426 | $541.7K | 0.04% | +2,426 | New |
| Sterling Capital Management LLC | 2,426 | $541.8K | 0.01% | +372+18.1% | Added |
| Financial Advisory Corp | 2,438 | $545.0K | 0.17% | −20−0.8% | Reduced |
| Virtu Financial LLC | 2,448 | $547.0K | 0.03% | −2,342−48.9% | Reduced |
| Norden Group LLC | 2,457 | $548.7K | 0.06% | +290+13.4% | Added |
| Allianz Asset Management GmbH | 2,469 | $551.4K | 0.00% | −977−28.4% | Reduced |
| Simplex Trading, LLC | 2,519 | $562.0K | 0.02% | −4,424−63.7% | Reduced |
| Jain Global LLC | 2,568 | $573.5K | 0.01% | +1,454+130.5% | Added |
| Mizuho Securities USA LLC | 2,593 | $579.1K | 0.01% | +2,593 | New |
| Twin Tree Management, LP | 2,599 | $580.5K | 0.01% | −5,332−67.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 2,888 | $645.0K | 0.01% | +63+2.2% | Added |
| Larson Financial Group LLC | 2,913 | $650.5K | 0.03% | +354+13.8% | Added |
| Inspire Advisors, LLC | 2,944 | $657.5K | 0.07% | −306−9.4% | Reduced |
| Federation des caisses Desjardins du Quebec | 2,948 | $657.9K | 0.00% | −182−5.8% | Reduced |
| Formidable Asset Management, LLC | 2,963 | $661.8K | 0.11% | −204−6.4% | Reduced |
| The PNC Financial Services Group, Inc. | 3,035 | $677.9K | 0.00% | −5−0.2% | Reduced |
| Ethic Inc. | 3,104 | $681.5K | 0.01% | +2,036+190.6% | Added |
| Shell Asset Management Co | 3,056 | $683.0K | 0.02% | −120−3.8% | Reduced |
| Pacer Advisors, Inc. | 3,065 | $684.5K | 0.00% | +1,197+64.1% | Added |
| Headlands Technologies LLC | 3,105 | $693.5K | 0.08% | −3,311−51.6% | Reduced |
| Caxton Associates LLP | 3,148 | $703.1K | 0.02% | +3,148 | New |
| CIBC World Markets Corp | 3,156 | $704.9K | 0.00% | +325+11.5% | Added |
| Oregon Public Employees Retirement Fund | 3,231 | $721.6K | 0.01% | 00.0% | Unchanged |
| Fifth Third Bancorp | 3,263 | $728.8K | 0.00% | +127+4.0% | Added |
| Reynders McVeigh Capital Management, LLC | 3,305 | $738.0K | 0.04% | −462−12.3% | Reduced |
| Xponance, Inc. | 3,334 | $744.6K | 0.01% | +20+0.6% | Added |
| Illinois Municipal Retirement Fund | 3,397 | $758.7K | 0.01% | −1,225−26.5% | Reduced |
| Creative Planning | 3,433 | $766.8K | 0.00% | +1,048+43.9% | Added |
| Mackenzie Financial Corp | 3,438 | $767.8K | 0.00% | +2,161+169.2% | Added |
| Nia Impact Advisors, LLC | 3,440 | $768.2K | 0.27% | 00.0% | Unchanged |
| Centiva Capital, LP | 3,445 | $769.4K | 0.05% | +3,445 | New |
| Ancora Advisors, LLC | 3,455 | $771.6K | 0.02% | +400+13.1% | Added |
| Campbell Newman Asset Management Inc | 3,535 | $789.5K | 0.06% | +233+7.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 3,571 | $797.5K | 0.00% | +606+20.4% | Added |
| Colony Group, LLC | 3,639 | $812.7K | 0.00% | +2,310+173.8% | Added |
| Daiwa Securities Group Inc. | 3,669 | $820.0K | 0.00% | +1,351+58.3% | Added |
| SummitTX Capital, L.P. | 3,797 | $848.0K | 0.04% | +2,033+115.2% | Added |
| Brighton Jones LLC | 3,878 | $866.2K | 0.02% | +3,878 | New |
| Buckingham Strategic Partners | 3,888 | $868.3K | 0.01% | +2,738+238.1% | Added |
| Woodline Partners LP | 4,052 | $905.0K | 0.00% | +867+27.2% | Added |
| O'Shaughnessy Asset Management, LLC | 4,068 | $908.5K | 0.01% | +1,381+51.4% | Added |
| Exchange Traded Concepts, LLC | 4,157 | $928.4K | 0.01% | +64+1.6% | Added |
| Brinker Capital Investments, LLC | 4,203 | $938.6K | 0.01% | +69+1.7% | Added |
| State of Alaska, Department of Revenue | 4,215 | $941.0K | 0.01% | −200−4.5% | Reduced |
| Walleye Trading LLC | 4,220 | $942.5K | 0.02% | +780+22.7% | Added |
| Mutual of America Capital Management LLC | 4,301 | $960.6K | 0.01% | −83−1.9% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 4,310 | $963.4K | 0.01% | +4,310 | New |
| JustInvest LLC | 4,447 | $993.2K | 0.01% | +797+21.8% | Added |
| Gsa Capital Partners LLP | 4,470 | $998.0K | 0.07% | +1,822+68.8% | Added |
| Yousif Capital Management, LLC | 4,522 | $1.01M | 0.01% | −70−1.5% | Reduced |
| CIBC Private Wealth Group, LLC | 4,560 | $1.02M | 0.00% | −299−6.2% | Reduced |
| Lazard Asset Management LLC | 4,650 | $1.04M | 0.00% | −1,048−18.4% | Reduced |
| Integrated Wealth Concepts LLC | 4,681 | $1.05M | 0.01% | +1,748+59.6% | Added |
| Oak Thistle LLC | 4,747 | $1.06M | 0.16% | +799+20.2% | Added |
| CIBC Asset Management Inc | 4,754 | $1.06M | 0.00% | −478−9.1% | Reduced |