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 |
|---|---|---|---|---|---|
| Taylor Hoffman Capital Management LLC | 28,863 | $4.76M | 1.47% | +5,280+22.4% | Added |
| Robertson Opportunity Capital, LLC | 28,830 | $4.76M | 1.83% | 00.0% | Unchanged |
| Geneva Capital Management LLC | 27,533 | $4.54M | 0.10% | +87+0.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 27,410 | $4.52M | 0.01% | +22,570+466.3% | Added |
| Interval Partners, LP | 26,478 | $4.37M | 0.15% | −49,945−65.4% | Reduced |
| Readystate Asset Management LP | 24,935 | $4.11M | 0.24% | +1,562+6.7% | Added |
| Bank of Nova Scotia | 24,612 | $4.06M | 0.01% | +11,429+86.7% | Added |
| ExodusPoint Capital Management, LP | 23,975 | $3.96M | 0.04% | +23,975 | New |
| Creative Planning | 23,074 | $3.81M | 0.00% | +7,813+51.2% | Added |
| Canada Pension Plan Investment Board | 22,800 | $3.76M | 0.00% | −27,800−54.9% | Reduced |
| Citigroup Inc | 21,390 | $3.53M | 0.00% | −10,006−31.9% | Reduced |
| HSBC Holdings PLC | 21,009 | $3.47M | 0.00% | +18,165+638.7% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 20,930 | $3.45M | 0.19% | −2,570−10.9% | Reduced |
| Illinois Municipal Retirement Fund | 20,313 | $3.35M | 0.04% | +1,372+7.2% | Added |
| New York State Common Retirement Fund | 20,179 | $3.33M | 0.00% | −83−0.4% | Reduced |
| Hunter Perkins Capital Management, LLC | 19,992 | $3.30M | 0.77% | +2,790+16.2% | Added |
| Agf Management Ltd | 19,955 | $3.29M | 0.01% | +1,983+11.0% | Added |
| Captrust Financial Advisors | 19,708 | $3.25M | 0.01% | +1,454+8.0% | Added |
| Algert Global LLC | 19,440 | $3.21M | 0.05% | −39,870−67.2% | Reduced |
| Russell Investments Group, Ltd. | 19,172 | $3.16M | 0.00% | −1,947−9.2% | Reduced |
| Walleye Trading LLC | 19,070 | $3.15M | 0.06% | +19,070 | New |
| State of Alaska, Department of Revenue | 18,394 | $3.03M | 0.03% | −529−2.8% | Reduced |
| Guardian Capital LP | 18,300 | $3.02M | 0.08% | −5,400−22.8% | Reduced |
| Winton Group Ltd | 18,018 | $2.97M | 0.10% | −18,346−50.5% | Reduced |
| Franklin Resources Inc | 17,603 | $2.90M | 0.00% | +6,797+62.9% | Added |
| Cinctive Capital Management LP | 17,582 | $2.90M | 0.19% | −5,271−23.1% | Reduced |
| CenterBook Partners LP | 16,706 | $2.76M | 0.15% | +16,706 | New |
| State of Tennessee, Treasury Department | 16,682 | $2.75M | 0.01% | −891−5.1% | Reduced |
| Louisiana State Employees Retirement System | 16,500 | $2.72M | 0.05% | −500−2.9% | Reduced |
| American Century Companies Inc | 16,192 | $2.67M | 0.00% | +1,111+7.4% | Added |
| Teachers Retirement System of the State of Kentucky | 16,012 | $2.64M | 0.02% | +6,810+74.0% | Added |
| Squarepoint Ops LLC | 15,858 | $2.62M | 0.01% | −55,800−77.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 15,845 | $2.61M | 0.02% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 15,606 | $2.58M | 0.01% | +337+2.2% | Added |
| Envestnet Asset Management Inc | 15,286 | $2.52M | 0.00% | +12,839+524.7% | Added |
| Colony Group, LLC | 15,054 | $2.48M | 0.00% | +908+6.4% | Added |
| Vanguard Global Advisers, LLC | 14,948 | $2.47M | 0.00% | +14,948 | New |
| Elo Mutual Pension Insurance Co | 14,686 | $2.42M | 0.04% | +14,686 | New |
| Toroso Investments, LLC | 14,642 | $2.42M | 0.01% | −1,263−7.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,105 | $2.33M | 0.01% | −336−2.3% | Reduced |
| Sanctuary Advisors, LLC | 14,015 | $2.31M | 0.01% | −116−0.8% | Reduced |
| Barclays PLC | 13,847 | $2.28M | 0.00% | −14,055−50.4% | Reduced |
| Man Group plc | 13,738 | $2.27M | 0.00% | −15,635−53.2% | Reduced |
| Merit Financial Group, LLC | 13,710 | $2.26M | 0.02% | +336+2.5% | Added |
| Public Employees Retirement System of Ohio | 13,269 | $2.19M | 0.01% | +563+4.4% | Added |
| Brighton Jones LLC | 13,098 | $2.16M | 0.05% | +13,098 | New |
| Exchange Traded Concepts, LLC | 13,032 | $2.15M | 0.02% | +453+3.6% | Added |
| State of New Jersey Common Pension Fund D | 12,841 | $2.12M | 0.01% | −342−2.6% | Reduced |
| Jane Street Group, LLC | 12,740 | $2.10M | 0.00% | +348+2.8% | Added |
| Jump Financial, LLC | 12,556 | $2.07M | 0.03% | +1,999+18.9% | Added |
| Buckingham Strategic Partners | 11,908 | $1.96M | 0.02% | −1,174−9.0% | Reduced |
| Fred Alger Management, LLC | 11,594 | $1.91M | 0.01% | −55−0.5% | Reduced |
| Amalgamated Bank | 11,305 | $1.86M | 0.01% | −421−3.6% | Reduced |
| Pallas Capital Advisors LLC | 11,133 | $1.84M | 0.07% | −2,491−18.3% | Reduced |
| Alpha Omega Wealth Management LLC | 10,895 | $1.80M | 0.29% | +3,580+48.9% | Added |
| Natixis Advisors, L.P. | 10,880 | $1.79M | 0.00% | +10,880 | New |
| Walled Lake Planning & Wealth Management, LLC | 10,544 | $1.74M | 0.51% | +212+2.1% | Added |
| Arizona State Retirement System | 10,210 | $1.68M | 0.01% | −132−1.3% | Reduced |
| Fifth Third Bancorp | 10,140 | $1.67M | 0.00% | +7,894+351.5% | Added |
| Yousif Capital Management, LLC | 10,116 | $1.67M | 0.02% | −26−0.3% | Reduced |
| XTX Topco Ltd | 9,828 | $1.62M | 0.03% | −4,404−30.9% | Reduced |
| Los Angeles Capital Management LLC | 9,581 | $1.58M | 0.01% | −4,032−29.6% | Reduced |
| Vanguard Investments Australia, Ltd. | 9,410 | $1.55M | 0.00% | +9,410 | New |
| Handelsbanken Fonder AB | 9,344 | $1.54M | 0.01% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 9,192 | $1.52M | 0.01% | −11−0.1% | Reduced |
| Oregon Public Employees Retirement Fund | 8,499 | $1.40M | 0.02% | −45−0.5% | Reduced |
| Summit Trail Advisors, LLC | 8,402 | $1.39M | 0.02% | +2,568+44.0% | Added |
| Krilogy Financial LLC | 7,884 | $1.37M | 0.04% | +77+1.0% | Added |
| KLP Kapitalforvaltning AS | 8,200 | $1.35M | 0.01% | +200+2.5% | Added |
| Jefferies Financial Group Inc. | 8,190 | $1.35M | 0.02% | +3,432+72.1% | Added |
| Manufacturers Life Insurance Company, The | 8,050 | $1.33M | 0.00% | −65−0.8% | Reduced |
| Dark Forest Capital Management LP | 8,044 | $1.33M | 0.12% | +3,416+73.8% | Added |
| Integrated Wealth Concepts LLC | 7,796 | $1.29M | 0.01% | −164−2.1% | Reduced |
| Baird Financial Group, Inc. | 7,753 | $1.28M | 0.00% | −11,591−59.9% | Reduced |
| IFP Advisors, Inc | 7,741 | $1.28M | 0.03% | +3,475+81.5% | Added |
| Weiss Asset Management LP | 7,490 | $1.24M | 0.02% | +7,490 | New |
| Oak Thistle LLC | 7,370 | $1.22M | 0.12% | −2,522−25.5% | Reduced |
| Maryland State Retirement & Pension System | 7,147 | $1.18M | 0.02% | −34−0.5% | Reduced |
| Quantbot Technologies LP | 6,940 | $1.14M | 0.05% | +1,279+22.6% | Added |
| Stiles Financial Services Inc | 6,767 | $1.12M | 0.34% | −208−3.0% | Reduced |
| Jones Financial Companies LLLP | 6,674 | $1.10M | 0.00% | +4,826+261.1% | Added |
| Empowered Funds, LLC | 6,474 | $1.07M | 0.01% | +5,218+415.4% | Added |
| Bull Harbor Capital LLC | 6,378 | $1.05M | 0.28% | +6,378 | New |
| Dynamic Technology Lab Private Ltd | 6,363 | $1.05M | 0.17% | +6,363 | New |
| Redwood Investment Management, LLC | 6,262 | $1.03M | 0.13% | +6,262 | New |
| Toronto Dominion Bank | 6,035 | $997.0K | 0.00% | +254+4.4% | Added |
| SG Americas Securities, LLC | 6,032 | $995.0K | 0.00% | −5,400−47.2% | Reduced |
| Voya Investment Management LLC | 5,844 | $964.1K | 0.00% | +968+19.9% | Added |
| HighTower Advisors, LLC | 5,836 | $962.9K | 0.00% | +2,929+100.8% | Added |
| Parvin Asset Management, LLC | 5,770 | $951.9K | 0.70% | −4−0.1% | Reduced |
| Evolve Private Wealth, LLC | 5,700 | $940.4K | 0.05% | −2,038−26.3% | Reduced |
| Diversified Trust Co | 5,655 | $933.0K | 0.02% | +3,278+137.9% | Added |
| Pictet Asset Management Holding SA | 5,610 | $925.5K | 0.00% | +290+5.5% | Added |
| Bridgewater Associates, LP | 5,608 | $925.2K | 0.00% | −7,653−57.7% | Reduced |
| Advisor Group Holdings, Inc. | 5,330 | $879.7K | 0.00% | +1,888+54.9% | Added |
| Nisa Investment Advisors, LLC | 5,231 | $863.0K | 0.00% | +1,294+32.9% | Added |
| Axq Capital, LP | 5,190 | $856.2K | 0.11% | +2,377+84.5% | Added |
| Sivia Capital Partners, LLC | 5,178 | $854.3K | 0.17% | +1,297+33.4% | Added |
| DekaBank Deutsche Girozentrale | 5,080 | $854.0K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 5,167 | $852.5K | 0.00% | −11,495−69.0% | Reduced |