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, Q1 2026
Institutional positions in Marketaxess Holdings Inc as of Mar 31, 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
- 452
- −27 vs. Q4 2025
- Shares held
- 38.2M
- +6.09M (+18.9%) vs. Q4 2025
- Total value
- $6.31B
- +$482.8M (+8.3%) vs. Q4 2025
- New holders
- 63
- 182 more added
- Sold out
- 90
- 150 more reduced
8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Beese Fulmer Investment Management, Inc. | 1,711 | $282.3K | 0.02% | +257+17.7% | Added |
| Nomura Holdings Inc | 1,607 | $265.1K | 0.00% | +44+2.8% | Added |
| Dundas Partners LLP | 1,604 | $264.6K | 0.02% | −298−15.7% | Reduced |
| Morningstar Investment Management LLC | 1,602 | $264.3K | 0.02% | −21,405−93.0% | Reduced |
| R Squared Ltd | 1,590 | $262.3K | 0.14% | +1,590 | New |
| Argos Wealth Advisors, LLC | 1,561 | $257.5K | 0.07% | +162+11.6% | Added |
| Aquatic Capital Management LLC | 1,508 | $248.8K | 0.01% | −19,755−92.9% | Reduced |
| Abundance Wealth Counselors | 1,498 | $247.1K | 0.04% | +1,498 | New |
| Teacher Retirement System of Texas | 1,460 | $240.9K | 0.00% | −34,680−96.0% | Reduced |
| Skopos Labs, Inc. | 1,448 | $238.9K | 0.01% | +325+28.9% | Added |
| Benedict Financial Advisors Inc | 1,447 | $238.7K | 0.05% | −224−13.4% | Reduced |
| GAMMA Investing LLC | 1,444 | $238.2K | 0.01% | +22+1.5% | Added |
| Legacy Financial Advisors, Inc. | 1,440 | $237.6K | 0.03% | +183+14.6% | Added |
| Fieldview Capital Management, LLC | 1,410 | $232.6K | 0.07% | −775−35.5% | Reduced |
| Vise Technologies, Inc. | 1,282 | $232.4K | 0.00% | 00.0% | Unchanged |
| Guardian Partners Inc. | 1,401 | $231.7K | 0.02% | −99−6.6% | Reduced |
| Wick Capital Partners, LLC | 1,404 | $231.6K | 0.04% | +234+20.0% | Added |
| QTR Family Wealth, LLC | 1,349 | $230.7K | 0.10% | −23−1.7% | Reduced |
| Omers Administration Corp | 1,390 | $229.3K | 0.00% | 00.0% | Unchanged |
| Odyssean, LLC | 1,381 | $227.8K | 0.08% | −2,776−66.8% | Reduced |
| Globeflex Capital L P | 1,371 | $226.2K | 0.03% | −277−16.8% | Reduced |
| Empirical Finance, LLC | 1,296 | $213.8K | 0.01% | −17−1.3% | Reduced |
| Kornitzer Capital Management Inc | 1,289 | $212.7K | 0.00% | −25−1.9% | Reduced |
| Tower Research Capital LLC (TRC) | 1,281 | $211.3K | 0.01% | −330−20.5% | Reduced |
| Fi3 FINANCIAL ADVISORS, LLC | 1,258 | $207.5K | 0.06% | −350−21.8% | Reduced |
| Retirement Planning Co of New England, Inc. | 1,248 | $205.9K | 0.08% | −29−2.3% | Reduced |
| Shelton Capital Management | 1,244 | $205.2K | 0.00% | 00.0% | Unchanged |
| Hamilton Capital Partners Inc. | 1,239 | $204.4K | 0.01% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 1,223 | $201.8K | 0.00% | −933−43.3% | Reduced |
| KBC Group NV | 1,194 | $197.0K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 1,175 | $194.6K | 0.00% | −28−2.3% | Reduced |
| Bard Associates Inc | 1,159 | $191.2K | 0.05% | +1,033+819.8% | Added |
| Archer Investment Corp | 993 | $163.8K | 0.03% | +993 | New |
| CX Institutional | 952 | $157.0K | 0.00% | −139−12.7% | Reduced |
| Horizon Investments, LLC | 921 | $151.9K | 0.00% | +921 | New |
| Whittier Trust Co of Nevada Inc | 864 | $151.3K | 0.00% | +800+1,250.0% | Added |
| Hantz Financial Services, Inc. | 897 | $148.0K | 0.00% | +280+45.4% | Added |
| STRS Ohio | 872 | $143.9K | 0.00% | −1−0.1% | Reduced |
| South Dakota Investment Council | 850 | $140.0K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 819 | $135.2K | 0.00% | +323+65.1% | Added |
| Pinnacle Wealth Planning Services, Inc. | 737 | $121.6K | 0.01% | −134−15.4% | Reduced |
| Caitong International Asset Management Co., Ltd | 679 | $112.0K | 0.02% | +172+33.9% | Added |
| True Wealth Design, LLC | 623 | $102.8K | 0.03% | −64−9.3% | Reduced |
| MetLife Investment Management | 597 | $98.5K | 0.00% | +1+0.2% | Added |
| Eurizon Capital SGR S.p.A. | 580 | $96.0K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 482 | $79.5K | 0.00% | +440+1,047.6% | Added |
| MAI Capital Management | 443 | $73.1K | 0.00% | +380+603.2% | Added |
| Pacer Advisors, Inc. | 444 | $73.0K | 0.00% | +164+58.6% | Added |
| Covestor Ltd | 436 | $72.0K | 0.05% | −375−46.2% | Reduced |
| Salomon & Ludwin, LLC | 417 | $71.5K | 0.01% | +156+59.8% | Added |
| Anchor Investment Management, LLC | 374 | $61.7K | 0.01% | 00.0% | Unchanged |
| RWM Asset Management, LLC | 362 | $59.7K | 0.01% | +362 | New |
| Colonial Trust Co | 351 | $57.9K | 0.01% | 00.0% | Unchanged |
| Westpac Banking Corp | 341 | $56.3K | 0.00% | +341 | New |
| Employees Retirement System of Texas | 311 | $51.0K | 0.00% | 00.0% | Unchanged |
| Wealth Preservation Advisors, LLC | 299 | $49.3K | 0.04% | +299 | New |
| Federated Hermes, Inc. | 279 | $46.0K | 0.00% | +2+0.7% | Added |
| Asset Management One Co.,Ltd. | 269 | $44.4K | 0.00% | −198−42.4% | Reduced |
| Quarry LP | 263 | $43.4K | 0.01% | −217−45.2% | Reduced |
| Nomura Asset Management Co Ltd | 260 | $42.9K | 0.00% | +162+165.3% | Added |
| Heritage Wealth Advisors | 235 | $38.8K | 0.00% | +235 | New |
| Massmutual Trust Co FSB | 222 | $36.6K | 0.00% | −89−28.6% | Reduced |
| Generali Asset Management SPA SGR | 214 | $35.3K | 0.00% | 00.0% | Unchanged |
| Rexford Capital Inc | 214 | $35.3K | 0.03% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 211 | $34.9K | 0.00% | +50+31.1% | Added |
| Umb Bank N A | 211 | $34.8K | 0.00% | −5−2.3% | Reduced |
| Bayforest Capital Ltd | 205 | $33.8K | 0.04% | −132−39.2% | Reduced |
| SJS Investment Consulting Inc. | 200 | $33.0K | 0.00% | +23+13.0% | Added |
| Quent Capital, LLC | 151 | $24.9K | 0.00% | 00.0% | Unchanged |
| CVA Family Office, LLC | 137 | $22.6K | 0.00% | +24+21.2% | Added |
| Aster Capital Management (DIFC) Ltd | 104 | $22.5K | 0.01% | −1,163−91.8% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 125 | $20.7K | 0.00% | 00.0% | Unchanged |
| Quadrant Capital Group LLC | 125 | $20.6K | 0.00% | −7−5.3% | Reduced |
| Versant Capital Management, Inc | 124 | $20.5K | 0.00% | −498−80.1% | Reduced |
| Smartleaf Asset Management LLC | 117 | $19.3K | 0.00% | +17+17.0% | Added |
| Community Financial Services Group, LLC | 115 | $19.0K | 0.00% | +115 | New |
| Activest Wealth Management | 113 | $18.6K | 0.00% | −43−27.6% | Reduced |
| HM Payson & Co | 110 | $18.1K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 102 | $16.8K | 0.00% | −14−12.1% | Reduced |
| Rockefeller Capital Management L.P. | 100 | $16.6K | 0.00% | +12+13.6% | Added |
| Private Trust Co NA | 96 | $15.8K | 0.00% | 00.0% | Unchanged |
| Owl Creek Wealth Partners LLC | 95 | $15.7K | 0.01% | +95 | New |
| CNB Bank | 92 | $15.2K | 0.01% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 71 | $11.7K | 0.00% | +71 | New |
| Boreal Capital Management LLC | 70 | $11.5K | 0.01% | 00.0% | Unchanged |
| Mather Group, LLC. | 60 | $9.90K | 0.00% | +60 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 56 | $9.24K | 0.00% | 00.0% | Unchanged |
| Global X Japan Co., Ltd. | 52 | $8.58K | 0.00% | +52 | New |
| International Assets Investment Management, LLC | 51 | $8.45K | 0.00% | 00.0% | Unchanged |
| MCF Advisors LLC | 50 | $8.25K | 0.00% | +50 | New |
| Atlantic Trust, LLC | 48 | $7.92K | 0.00% | −47−49.5% | Reduced |
| SBI Securities Co., Ltd. | 48 | $7.92K | 0.00% | −2−4.0% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 44 | $7.26K | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 43 | $7.09K | 0.00% | +12+38.7% | Added |
| Storebrand Asset Management AS | 43 | $7.09K | 0.00% | 00.0% | Unchanged |
| Leonteq Securities AG | 39 | $6.43K | 0.00% | −28−41.8% | Reduced |
| JPL Wealth Management, LLC | 36 | $5.94K | 0.00% | +36 | New |
| Manchester Capital Management LLC | 35 | $5.78K | 0.00% | +26+288.9% | Added |
| Sunbelt Securities, Inc. | 35 | $5.77K | 0.00% | +17+94.4% | Added |
| Twin Peaks Wealth Advisors, LLC | 34 | $5.61K | 0.00% | +34 | New |