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 |
|---|---|---|---|---|---|
| Amundi | 221,802 | $48.6M | 0.02% | +84,182+61.2% | Added |
| Baird Financial Group, Inc. | 226,300 | $50.5M | 0.09% | −2,556−1.1% | Reduced |
| Two Sigma Advisers, LP | 243,400 | $54.4M | 0.11% | −86,000−26.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 250,037 | $55.8M | 0.04% | +161,115+181.2% | Added |
| Bank of America Corp | 259,752 | $58.0M | 0.00% | +29,164+12.6% | Added |
| Two Sigma Investments, LP | 280,089 | $62.6M | 0.11% | −150,433−34.9% | Reduced |
| Congress Asset Management Co | 286,276 | $63.9M | 0.44% | −55,462−16.2% | Reduced |
| Northern Trust Corp | 305,564 | $68.2M | 0.01% | +1,230+0.4% | Added |
| Citadel Advisors LLC | 351,166 | $78.4M | 0.07% | −123,179−26.0% | Reduced |
| Charles Schwab Investment Management Inc | 366,467 | $81.8M | 0.01% | −6,001−1.6% | Reduced |
| Bank of New York Mellon Corp | 376,029 | $84.0M | 0.02% | −13,025−3.3% | Reduced |
| Burgundy Asset Management Ltd. | 414,370 | $92.5M | 0.90% | +11,859+2.9% | Added |
| JPMorgan Chase & Co | 419,044 | $93.6M | 0.01% | −26,245−5.9% | Reduced |
| North Reef Capital Management LP | 420,000 | $93.8M | 4.16% | +60,000+16.7% | Added |
| Morgan Stanley | 424,807 | $94.9M | 0.01% | +110,258+35.1% | Added |
| Millennium Management LLC | 432,182 | $96.5M | 0.09% | −186,740−30.2% | Reduced |
| American Century Companies Inc | 487,197 | $108.8M | 0.06% | +264,855+119.1% | Added |
| Dimensional Fund Advisors LP | 511,422 | $114.2M | 0.03% | +40,662+8.6% | Added |
| Norges Bank | 513,089 | $114.6M | 0.01% | +5,743+1.1% | Added |
| Findlay Park Partners LLP | 656,300 | $146.6M | 1.51% | −23,700−3.5% | Reduced |
| AQR Capital Management LLC | 758,462 | $167.2M | 0.14% | +628,954+485.6% | Added |
| Invesco Ltd. | 853,213 | $190.6M | 0.03% | −50,990−5.6% | Reduced |
| Geode Capital Management, LLC | 1,141,198 | $254.5M | 0.02% | +6,448+0.6% | Added |
| Primecap Management Co | 1,339,292 | $299.1M | 0.24% | −22,220−1.6% | Reduced |
| Guardcap Asset Management Ltd | 1,498,358 | $334.6M | 6.57% | −24,648−1.6% | Reduced |
| State Street Corp | 1,532,696 | $342.3M | 0.01% | +67,290+4.6% | Added |
| Van Eck Associates Corp | 1,829,597 | $408.6M | 0.46% | −176,319−8.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 2,331,988 | $520.8M | 0.33% | +8,973+0.4% | Added |
| FMR LLC | 2,332,146 | $520.9M | 0.03% | +142,230+6.5% | Added |
| BlackRock, Inc. | 2,649,886 | $591.8M | 0.01% | +44,490+1.7% | Added |
| Vanguard Group Inc | 4,359,372 | $973.6M | 0.02% | −47,764−1.1% | Reduced |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −358,332−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −108,140−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −48,202−100.0% | Sold out |
| Gillson Capital LP | 0 | $0 | 0.00% | −46,999−100.0% | Sold out |
| APG Asset Management N.V. | 0 | $0 | 0.00% | −20,600−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −14,655−100.0% | Sold out |
| Peak Financial Advisors LLC | 0 | $0 | 0.00% | −14,212−100.0% | Sold out |
| Element Capital Management LLC | 0 | $0 | 0.00% | −12,697−100.0% | Sold out |
| Point72 Europe (London) LLP | 0 | $0 | 0.00% | −10,800−100.0% | Sold out |
| Hixon Zuercher, LLC | 0 | $0 | 0.00% | −10,680−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −10,195−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −8,659−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −8,004−100.0% | Sold out |
| B. Metzler seel. Sohn & Co. AG | 0 | $0 | 0.00% | −7,890−100.0% | Sold out |
| Achmea Investment Management B.V. | 0 | $0 | 0.00% | −7,481−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −7,400−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −6,569−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −5,406−100.0% | Sold out |
| J. Safra Sarasin Holding AG | 0 | $0 | 0.00% | −4,903−100.0% | Sold out |
| Eventide Asset Management, LLC | 0 | $0 | 0.00% | −4,543−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −4,046−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −3,775−100.0% | Sold out |
| Quantessence Capital LLC | 0 | $0 | 0.00% | −3,637−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −2,985−100.0% | Sold out |
| Tredje AP-fonden | 0 | $0 | 0.00% | −2,980−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −2,511−100.0% | Sold out |
| Contravisory Investment Management, Inc. | 0 | $0 | 0.00% | −2,241−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −2,202−100.0% | Sold out |
| Custom Index Systems, LLC | 0 | $0 | 0.00% | −1,831−100.0% | Sold out |
| Royal London Asset Management Ltd | 0 | $0 | 0.00% | −1,698−100.0% | Sold out |
| Ground Swell Capital, LLC | 0 | $0 | 0.00% | −1,673−100.0% | Sold out |
| ASR Vermogensbeheer N.V. | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −1,592−100.0% | Sold out |
| Qtron Investments LLC | 0 | $0 | 0.00% | −1,582−100.0% | Sold out |
| Equitable Trust Co | 0 | $0 | 0.00% | −1,497−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −1,194−100.0% | Sold out |
| Concurrent Investment Advisors, LLC | 0 | $0 | 0.00% | −1,086−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −1,077−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −1,068−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −1,067−100.0% | Sold out |
| Korea Investment CORP | 0 | $0 | 0.00% | −1,045−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Allen Capital Group, LLC | 0 | $0 | 0.00% | −946−100.0% | Sold out |
| Intact Investment Management Inc. | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Pinnacle Financial Partners Inc | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −255−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −227−100.0% | Sold out |
| Hara Capital LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| City Holding Co | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Creative Financial Designs Inc | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| DT Investment Partners, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Global Financial Private Client, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Highline Wealth Partners LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Provenance Wealth Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Stonebridge Financial Group, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Kodai Capital Management LP | – | – | – | – | Not filed |
| Credit Agricole S A | – | – | – | – | Not filed |
| Orion Portfolio Solutions, LLC | – | – | – | – | Not filed |
| Mizuho Securities USA LLC | – | – | – | – | Not filed |
| Rakuten Investment Management, Inc. | – | – | – | – | Not filed |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |
| Pilgrim Partners Asia Pte Ltd | – | – | – | – | Not filed |