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 |
|---|---|---|---|---|---|
| Pinnacle Wealth Planning Services, Inc. | 707 | $80.2K | 0.01% | −30−4.1% | Reduced |
| STRS Ohio | 737 | $83.6K | 0.00% | −135−15.5% | Reduced |
| Bayforest Capital Ltd | 778 | $88.3K | 0.08% | +573+279.5% | Added |
| EverSource Wealth Advisors, LLC | 938 | $106.5K | 0.00% | −2,160−69.7% | Reduced |
| Archer Investment Corp | 993 | $112.7K | 0.02% | 00.0% | Unchanged |
| US Bancorp | 1,029 | $116.8K | 0.00% | −1,939−65.3% | Reduced |
| Sterling Capital Management LLC | 1,052 | $119.4K | 0.00% | −171−14.0% | Reduced |
| Horizon Investments, LLC | 1,092 | $123.9K | 0.00% | +171+18.6% | Added |
| Guardian Partners Inc. | 1,100 | $124.8K | 0.01% | −301−21.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 1,118 | $126.9K | 0.00% | +1,118 | New |
| Northwestern Mutual Wealth Management Co | 1,153 | $130.8K | 0.00% | +334+40.8% | Added |
| GAMMA Investing LLC | 1,171 | $132.9K | 0.00% | −273−18.9% | Reduced |
| Bard Associates Inc | 1,174 | $133.2K | 0.03% | +15+1.3% | Added |
| KBC Group NV | 1,194 | $136.0K | 0.00% | 00.0% | Unchanged |
| Globeflex Capital L P | 1,371 | $155.6K | 0.02% | 00.0% | Unchanged |
| Allworth Financial LP | 1,435 | $162.9K | 0.00% | −1,059−42.5% | Reduced |
| Essential Partners LLC | 1,469 | $166.7K | 0.08% | −2,237−60.4% | Reduced |
| Nisa Investment Advisors, LLC | 1,508 | $171.1K | 0.00% | −3,723−71.2% | Reduced |
| Hantz Financial Services, Inc. | 1,575 | $179.0K | 0.00% | +678+75.6% | Added |
| The PNC Financial Services Group, Inc. | 1,649 | $187.1K | 0.00% | −476−22.4% | Reduced |
| Nykredit A/S | 1,751 | $198.7K | 0.00% | +1,751 | New |
| Keybank National Association | 1,780 | $202.0K | 0.00% | −971−35.3% | Reduced |
| Utah Retirement Systems | 1,823 | $206.9K | 0.00% | −104−5.4% | Reduced |
| New Age Alpha Advisors, LLC | 1,864 | $211.5K | 0.01% | −1,380−42.5% | Reduced |
| AlphaCore Capital LLC | 1,875 | $212.8K | 0.00% | +1,875 | New |
| Warren Averett Asset Management, LLC | 1,895 | $215.1K | 0.00% | −1,471−43.7% | Reduced |
| DnB Asset Management AS | 1,902 | $215.9K | 0.00% | 00.0% | Unchanged |
| Linden Thomas Advisory Services, LLC | 1,907 | $216.4K | 0.02% | −17−0.9% | Reduced |
| Transcend Wealth Collective, LLC | 1,909 | $216.7K | 0.01% | −574−23.1% | Reduced |
| Glenmede Trust Co NA | 1,910 | $216.8K | 0.00% | +1,910 | New |
| Knollwood Investment Advisory, LLC | 1,934 | $219.5K | 0.02% | 00.0% | Unchanged |
| Armistice Capital, LLC | 1,952 | $221.5K | 0.01% | +1,952 | New |
| RMR Wealth Builders | 1,959 | $222.3K | 0.01% | +2+0.1% | Added |
| Caerus Investment Advisors, LLC | 1,990 | $225.8K | 0.08% | −434−17.9% | Reduced |
| Centiva Capital, LP | 2,002 | $227.2K | 0.01% | +2,002 | New |
| CWM Advisors, LLC | 2,027 | $230.0K | 0.01% | +2,027 | New |
| Ensign Peak Advisors, Inc | 2,057 | $233.4K | 0.00% | −3,110−60.2% | Reduced |
| HighTower Advisors, LLC | 2,060 | $233.7K | 0.00% | −3,776−64.7% | Reduced |
| Pathstone Holdings, LLC | 2,077 | $235.7K | 0.00% | +251+13.7% | Added |
| Blair William & Co | 2,085 | $236.6K | 0.00% | +2,085 | New |
| Claret Asset Management Corp | 2,127 | $241.0K | 0.03% | +2,127 | New |
| Walleye Trading LLC | 2,147 | $243.7K | 0.00% | −16,923−88.7% | Reduced |
| Balyasny Asset Management LLC | 2,153 | $244.3K | 0.00% | −2,032−48.6% | Reduced |
| Bull Harbor Capital LLC | 2,169 | $246.2K | 0.05% | −4,209−66.0% | Reduced |
| Westpac Banking Corp | 2,194 | $249.0K | 0.02% | +1,853+543.4% | Added |
| Perpetual Ltd | 2,194 | $249.0K | 0.00% | +2,194 | New |
| Evolve Private Wealth, LLC | 2,198 | $249.5K | 0.02% | −3,502−61.4% | Reduced |
| CIBC Asset Management Inc | 2,238 | $254.0K | 0.00% | 00.0% | Unchanged |
| Horizon Kinetics Asset Management LLC | 2,254 | $255.8K | 0.00% | +152+7.2% | Added |
| Swiss Life Asset Management Ltd | 2,304 | $261.5K | 0.00% | +162+7.6% | Added |
| X-Square Capital, LLC | 2,330 | $264.0K | 0.07% | +145+6.6% | Added |
| Morningstar Investment Management LLC | 1,602 | $264.3K | 0.02% | 00.0% | Unchanged |
| Simplex Trading, LLC | 2,336 | $265.1K | 0.01% | +2,336 | New |
| DRW Securities, LLC | 2,370 | $269.0K | 0.02% | −1,728−42.2% | Reduced |
| Virginia Retirement Systems Et Al | 2,400 | $272.4K | 0.00% | +2,400 | New |
| Dark Forest Capital Management LP | 2,435 | $276.3K | 0.02% | −5,609−69.7% | Reduced |
| Unique Wealth Strategies, LLC | 2,506 | $284.4K | 0.10% | +2,506 | New |
| HB Wealth Management, LLC | 2,517 | $285.7K | 0.00% | −705−21.9% | Reduced |
| Empowered Funds, LLC | 2,519 | $285.9K | 0.00% | −3,955−61.1% | Reduced |
| Optimize Financial Inc | 2,559 | $290.4K | 0.10% | 00.0% | Unchanged |
| Sound Capital Solutions LLC | 2,559 | $290.4K | 0.07% | +2,559 | New |
| Xponance, Inc. | 2,634 | $298.9K | 0.00% | −135−4.9% | Reduced |
| Atom Investors LP | 2,669 | $302.9K | 0.03% | +2,669 | New |
| TD Waterhouse Canada Inc. | 2,648 | $303.2K | 0.00% | −919−25.8% | Reduced |
| West Family Investments, Inc. | 2,714 | $308.0K | 0.09% | +2,714 | New |
| Amica Mutual Insurance Co | 2,758 | $313.0K | 0.03% | 00.0% | Unchanged |
| Integrated Wealth Concepts LLC | 3,010 | $341.6K | 0.00% | −4,786−61.4% | Reduced |
| Machina Capital S.A.S. | 3,056 | $346.8K | 0.05% | +1,107+56.8% | Added |
| Federation des caisses Desjardins du Quebec | 3,072 | $348.7K | 0.00% | +412+15.5% | Added |
| Walled Lake Planning & Wealth Management, LLC | 3,116 | $353.6K | 0.09% | −7,428−70.4% | Reduced |
| South Dakota Investment Council | 3,150 | $357.0K | 0.01% | +2,300+270.6% | Added |
| Citizens Financial Group Inc | 3,297 | $374.1K | 0.00% | +705+27.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 3,373 | $382.8K | 0.00% | +371+12.4% | Added |
| Sivia Capital Partners, LLC | 3,554 | $403.3K | 0.05% | −1,624−31.4% | Reduced |
| JustInvest LLC | 3,607 | $409.4K | 0.00% | +12+0.3% | Added |
| Brighton Jones LLC | 3,656 | $414.9K | 0.01% | −9,442−72.1% | Reduced |
| Odyssean, LLC | 3,661 | $415.5K | 0.07% | +2,280+165.1% | Added |
| Aviva PLC | 3,666 | $416.1K | 0.00% | +1,166+46.6% | Added |
| IMC-Chicago, LLC | 3,685 | $418.2K | 0.00% | +3,685 | New |
| Buckingham Strategic Partners | 3,707 | $420.7K | 0.00% | −8,201−68.9% | Reduced |
| MAI Capital Management | 3,708 | $420.9K | 0.00% | +3,265+737.0% | Added |
| Axq Capital, LP | 3,734 | $423.8K | 0.05% | −1,456−28.1% | Reduced |
| Lombard Odier Asset Management (Europe) Ltd | 3,783 | $429.3K | 0.02% | −17,147−81.9% | Reduced |
| Aquatic Capital Management LLC | 3,790 | $430.1K | 0.01% | +2,282+151.3% | Added |
| Krilogy Financial LLC | 3,803 | $431.6K | 0.01% | −4,081−51.8% | Reduced |
| Merit Financial Group, LLC | 3,812 | $432.6K | 0.00% | −9,898−72.2% | Reduced |
| Public Employees Retirement Association of Colorado | 3,908 | $444.0K | 0.00% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 3,959 | $449.3K | 0.01% | −409−9.4% | Reduced |
| Deutsche Bank AG | 3,979 | $451.6K | 0.00% | −33,497−89.4% | Reduced |
| Teacher Retirement System of Texas | 4,049 | $459.5K | 0.00% | +2,589+177.3% | Added |
| Engineers Gate Manager LP | 4,050 | $459.6K | 0.01% | −815−16.8% | Reduced |
| Nordea Investment Management AB | 4,104 | $465.4K | 0.00% | −438−9.6% | Reduced |
| Assetmark, Inc | 4,118 | $467.4K | 0.00% | +1,463+55.1% | Added |
| LPL Financial LLC | 4,119 | $467.4K | 0.00% | −134−3.2% | Reduced |
| Blueshift Asset Management, LLC | 4,144 | $470.3K | 0.11% | +680+19.6% | Added |
| Rothschild Investment LLC | 4,148 | $470.8K | 0.02% | +2,023+95.2% | Added |
| Diversified Trust Co | 4,313 | $489.5K | 0.01% | −1,342−23.7% | Reduced |
| Mutual of America Capital Management LLC | 4,415 | $501.1K | 0.00% | +161+3.8% | Added |
| New York Life Investment Management LLC | 4,472 | $507.5K | 0.00% | +27+0.6% | Added |
| SG Americas Securities, LLC | 4,536 | $515.0K | 0.00% | −1,496−24.8% | Reduced |