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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 4,359,372 | $973.6M | 0.02% | −47,764−1.1% | Reduced |
| BlackRock, Inc. | 2,649,886 | $591.8M | 0.01% | +44,490+1.7% | Added |
| FMR LLC | 2,332,146 | $520.9M | 0.03% | +142,230+6.5% | Added |
| T. Rowe Price Investment Management, Inc. | 2,331,988 | $520.8M | 0.33% | +8,973+0.4% | Added |
| Van Eck Associates Corp | 1,829,597 | $408.6M | 0.46% | −176,319−8.8% | Reduced |
| State Street Corp | 1,532,696 | $342.3M | 0.01% | +67,290+4.6% | Added |
| Guardcap Asset Management Ltd | 1,498,358 | $334.6M | 6.57% | −24,648−1.6% | Reduced |
| Primecap Management Co | 1,339,292 | $299.1M | 0.24% | −22,220−1.6% | Reduced |
| Geode Capital Management, LLC | 1,141,198 | $254.5M | 0.02% | +6,448+0.6% | Added |
| Invesco Ltd. | 853,213 | $190.6M | 0.03% | −50,990−5.6% | Reduced |
| AQR Capital Management LLC | 758,462 | $167.2M | 0.14% | +628,954+485.6% | Added |
| Findlay Park Partners LLP | 656,300 | $146.6M | 1.51% | −23,700−3.5% | Reduced |
| Norges Bank | 513,089 | $114.6M | 0.01% | +5,743+1.1% | Added |
| Dimensional Fund Advisors LP | 511,422 | $114.2M | 0.03% | +40,662+8.6% | Added |
| American Century Companies Inc | 487,197 | $108.8M | 0.06% | +264,855+119.1% | Added |
| Millennium Management LLC | 432,182 | $96.5M | 0.09% | −186,740−30.2% | Reduced |
| Morgan Stanley | 424,807 | $94.9M | 0.01% | +110,258+35.1% | Added |
| North Reef Capital Management LP | 420,000 | $93.8M | 4.16% | +60,000+16.7% | Added |
| JPMorgan Chase & Co | 419,044 | $93.6M | 0.01% | −26,245−5.9% | Reduced |
| Burgundy Asset Management Ltd. | 414,370 | $92.5M | 0.90% | +11,859+2.9% | Added |
| Bank of New York Mellon Corp | 376,029 | $84.0M | 0.02% | −13,025−3.3% | Reduced |
| Charles Schwab Investment Management Inc | 366,467 | $81.8M | 0.01% | −6,001−1.6% | Reduced |
| Citadel Advisors LLC | 351,166 | $78.4M | 0.07% | −123,179−26.0% | Reduced |
| Northern Trust Corp | 305,564 | $68.2M | 0.01% | +1,230+0.4% | Added |
| Congress Asset Management Co | 286,276 | $63.9M | 0.44% | −55,462−16.2% | Reduced |
| Two Sigma Investments, LP | 280,089 | $62.6M | 0.11% | −150,433−34.9% | Reduced |
| Bank of America Corp | 259,752 | $58.0M | 0.00% | +29,164+12.6% | Added |
| Arrowstreet Capital, Limited Partnership | 250,037 | $55.8M | 0.04% | +161,115+181.2% | Added |
| Two Sigma Advisers, LP | 243,400 | $54.4M | 0.11% | −86,000−26.1% | Reduced |
| Baird Financial Group, Inc. | 226,300 | $50.5M | 0.09% | −2,556−1.1% | Reduced |
| Amundi | 221,802 | $48.6M | 0.02% | +84,182+61.2% | Added |
| NFJ Investment Group, LLC | 211,107 | $47.1M | 1.65% | −18,656−8.1% | Reduced |
| UBS Group AG | 202,467 | $45.2M | 0.01% | −60,298−22.9% | Reduced |
| Royal Bank of Canada | 196,608 | $43.9M | 0.01% | +156,678+392.4% | Added |
| Walleye Capital LLC | 195,327 | $43.6M | 0.40% | +35,275+22.0% | Added |
| Raymond James Financial Inc | 194,466 | $43.4M | 0.01% | −6,556−3.3% | Reduced |
| Renaissance Technologies LLC | 190,600 | $42.6M | 0.06% | +61,100+47.2% | Added |
| Baillie Gifford & Co | 186,689 | $41.7M | 0.03% | −34,551−15.6% | Reduced |
| UBS Asset Management Americas Inc | 184,235 | $41.1M | 0.01% | +43,101+30.5% | Added |
| TD Asset Management Inc | 175,396 | $39.2M | 0.03% | −9,508−5.1% | Reduced |
| Assenagon Asset Management S.A. | 173,892 | $38.8M | 0.06% | −12,677−6.8% | Reduced |
| D. E. Shaw & Co., Inc. | 168,898 | $37.7M | 0.04% | +56,418+50.2% | Added |
| Nuveen, LLC | 159,167 | $35.5M | 0.01% | +35,359+28.6% | Added |
| Deutsche Bank AG | 154,214 | $34.4M | 0.01% | −20,051−11.5% | Reduced |
| GW&K Investment Management, LLC | 144,016 | $32.2M | 0.29% | +1,642+1.2% | Added |
| Barclays PLC | 140,080 | $31.3M | 0.01% | +10,964+8.5% | Added |
| Janus Henderson Group PLC | 136,037 | $30.4M | 0.01% | +20,361+17.6% | Added |
| Goldman Sachs Group Inc | 126,349 | $28.2M | 0.00% | −7,420−5.5% | Reduced |
| California Public Employees Retirement System | 120,647 | $26.9M | 0.02% | +57,183+90.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 118,231 | $26.4M | 0.09% | +17,013+16.8% | Added |
| Savant Capital, LLC | 116,266 | $26.0M | 0.19% | +272+0.2% | Added |
| RDST Capital LLC | 109,005 | $24.3M | 2.43% | +74,780+218.5% | Added |
| Bank of Nova Scotia | 108,481 | $24.2M | 0.05% | +91,419+535.8% | Added |
| Prudential Financial Inc | 98,271 | $21.9M | 0.03% | +78,336+393.0% | Added |
| Jane Street Group, LLC | 96,779 | $21.6M | 0.03% | +2,256+2.4% | Added |
| Tudor Investment Corp Et Al | 93,154 | $20.8M | 0.16% | +93,154 | New |
| Man Group plc | 90,745 | $20.3M | 0.04% | +45,870+102.2% | Added |
| Qube Research & Technologies Ltd | 89,781 | $20.1M | 0.03% | +65,281+266.5% | Added |
| BNP Paribas Arbitrage, SA | 85,415 | $19.1M | 0.01% | +4,103+5.0% | Added |
| Westwood Holdings Group Inc. | 83,495 | $18.6M | 0.13% | −4,139−4.7% | Reduced |
| Schroder Investment Management Group | 83,019 | $18.5M | 0.02% | −28,899−25.8% | Reduced |
| Canada Pension Plan Investment Board | 81,289 | $18.2M | 0.02% | +29,600+57.3% | Added |
| Rhumbline Advisers | 77,034 | $17.2M | 0.01% | +2,550+3.4% | Added |
| Legal & General Group Plc | 76,823 | $17.2M | 0.00% | +9,468+14.1% | Added |
| Holocene Advisors, LP | 76,574 | $17.1M | 0.04% | −174,068−69.4% | Reduced |
| Robeco Institutional Asset Management B.V. | 75,000 | $16.8M | 0.03% | +15,685+26.4% | Added |
| Goodman Financial Corp | 73,430 | $16.4M | 3.30% | +610+0.8% | Added |
| Swiss National Bank | 72,000 | $16.1M | 0.01% | −1,100−1.5% | Reduced |
| Voloridge Investment Management, LLC | 69,026 | $15.4M | 0.06% | +49,542+254.3% | Added |
| SEI Investments Co | 63,180 | $14.1M | 0.02% | −64,456−50.5% | Reduced |
| Public Employees Retirement Association of Colorado | 63,119 | $14.1M | 0.05% | −67−0.1% | Reduced |
| Envestnet Asset Management Inc | 61,657 | $13.8M | 0.00% | +3,541+6.1% | Added |
| Ieq Capital, LLC | 61,635 | $13.8M | 0.08% | +49,978+428.7% | Added |
| Verition Fund Management LLC | 61,457 | $13.7M | 0.08% | +47,762+348.8% | Added |
| Wilson Asset Management (International) Pty Ltd | 60,492 | $13.5M | 3.32% | 00.0% | Unchanged |
| Natixis | 59,752 | $13.3M | 0.07% | +45,653+323.8% | Added |
| Price T Rowe Associates Inc | 59,478 | $13.3M | 0.00% | +74+0.1% | Added |
| HSBC Holdings PLC | 58,450 | $13.0M | 0.01% | −22,636−27.9% | Reduced |
| Cubist Systematic Strategies, LLC | 58,044 | $13.0M | 0.14% | +58,044 | New |
| Los Angeles Capital Management LLC | 56,423 | $12.6M | 0.05% | −2,791−4.7% | Reduced |
| Point72 Asset Management, L.P. | 55,468 | $12.4M | 0.03% | +55,468 | New |
| HRT Financial LP | 55,315 | $12.4M | 0.05% | +11,289+25.6% | Added |
| Capital Fund Management S.A. | 53,392 | $11.9M | 0.13% | +36,397+214.2% | Added |
| Principal Financial Group Inc | 51,597 | $11.5M | 0.01% | +7,784+17.8% | Added |
| Candriam Luxembourg S.C.A. | 50,000 | $11.2M | 0.06% | +50,000 | New |
| Trexquant Investment LP | 49,416 | $11.0M | 0.12% | +27,313+123.6% | Added |
| Citigroup Inc | 48,248 | $10.8M | 0.01% | −1,693−3.4% | Reduced |
| Alps Advisors Inc | 46,710 | $10.4M | 0.06% | −330−0.7% | Reduced |
| DF Dent & Co Inc | 46,126 | $10.3M | 0.13% | +46,126 | New |
| Kornitzer Capital Management Inc | 45,246 | $10.1M | 0.20% | −32−0.1% | Reduced |
| Engineers Gate Manager LP | 45,188 | $10.1M | 0.13% | +24,437+117.8% | Added |
| Kingsview Wealth Management, LLC | 41,402 | $9.25M | 0.16% | −985−2.3% | Reduced |
| Algert Global LLC | 40,487 | $9.04M | 0.19% | +2,379+6.2% | Added |
| Ossiam | 40,000 | $8.93M | 0.10% | −58,000−59.2% | Reduced |
| State of Wisconsin Investment Board | 39,980 | $8.93M | 0.02% | +4,969+14.2% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 39,054 | $8.72M | 0.01% | +1,697+4.5% | Added |
| Sone Capital Management, LLC | 38,603 | $8.62M | 0.80% | −42,310−52.3% | Reduced |
| Alliancebernstein L.P. | 38,068 | $8.50M | 0.00% | −482−1.3% | Reduced |
| ICICI Prudential Asset Management Co Ltd | 37,889 | $8.46M | 1.05% | 00.0% | Unchanged |
| Bahl & Gaynor Inc | 37,707 | $8.42M | 0.04% | −2,442−6.1% | Reduced |