MARKETAXESS HLDGS INC MKTX
COM · Common Stock · CUSIP 57060D108 · ISIN US57060D1081
American financial services company
- SectorFinancials
- IndustrySecurity Brokers, Dealers & Flotation Companies
- HeadquartersNew York, NY
- Founded2000
- Websitemarketaxess.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($6.7m this quarter). Holder counts are more reliable. Shares outstanding: 35.2m as of 2026-08-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $113.46. Options: 13 managers hold calls ($255.4m notional), 11 hold puts ($13.5m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 483 |
| Q4 2022 | 500 |
| Q1 2023 | 542 |
| Q2 2023 | 515 |
| Q3 2023 | 487 |
| Q4 2023 | 508 |
| Q1 2024 | 465 |
| Q2 2024 | 470 |
| Q3 2024 | 513 |
| Q4 2024 | 521 |
| Q1 2025 | 514 |
| Q2 2025 | 532 |
| Q3 2025 | 455 |
| Q4 2025 | 488 |
| Q1 2026 | 453 |
| Q2 2026 | 397 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 238 | 236 |
| Q4 2024 | 270 | 237 |
| Q1 2025 | 275 | 260 |
| Q2 2025 | 307 | 220 |
| Q3 2025 | 222 | 318 |
| Q4 2025 | 256 | 244 |
| Q1 2026 | 234 | 241 |
| Q2 2026 | 182 | 275 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $192.1m | $22.6m | 0.12 |
| Q4 2025 | $33.7m | $20.4m | 0.60 |
| Q1 2026 | $36.0m | $10.5m | 0.29 |
| Q2 2026 | $255.4m | $13.5m | 0.05 |
Biggest buyers
| North Reef Capital Management LP | Added | +1.5m |
| GOLDMAN SACHS GROUP INC | Added | +522.3k |
| Azora Capital LP | New | +513.1k |
| CITADEL ADVISORS LLC | Added | +399.5k |
| Davis Asset Management, L.P. | Added | +391.2k |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Added | +382.5k |
| NEUBERGER BERMAN GROUP LLC | Added | +263.9k |
| Freestone Grove Partners LP | New | +172.8k |
| PRIMECAP MANAGEMENT CO/CA/ | Added | +157.8k |
| TUDOR INVESTMENT CORP ET AL | New | +137.8k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -977.6k |
| AQR CAPITAL MANAGEMENT LLC | Reduced | -696.5k |
| Findlay Park Partners LLP | Sold out | -480.6k |
| VAN ECK ASSOCIATES CORP | Reduced | -314.7k |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -284.0k |
| Point72 Asset Management, L.P. | Reduced | -244.7k |
| Driehaus Capital Management LLC | Sold out | -239.3k |
| Walleye Capital LLC | Reduced | -238.7k |
| Amundi | Reduced | -229.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -173.5k |
Biggest calls
| MILLENNIUM MANAGEMENT LLC | Added | $118.8m1.0m shares |
| CITIGROUP INC | New | $113.4m999.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $12.7m111.8k shares |
| CITADEL ADVISORS LLC | Added | $4.2m37.0k shares |
| Crawford Fund Management, LLC | Added | $2.9m25.5k shares |
| IMC-Chicago, LLC | Reduced | $987.4k8.7k shares |
| Walleye Capital LLC | Added | $896.6k7.9k shares |
| TUDOR INVESTMENT CORP ET AL | New | $624.2k5.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $522.1k4.6k shares |
| JANE STREET GROUP, LLC | New | $249.7k2.2k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $5.5m48.4k shares |
| CITADEL ADVISORS LLC | Added | $3.4m29.8k shares |
| Walleye Trading LLC | Added | $1.3m11.8k shares |
| SIMPLEX TRADING, LLC | Added | $976.0k8.6k shares |
| IMC-Chicago, LLC | Added | $919.3k8.1k shares |
| TUDOR INVESTMENT CORP ET AL | New | $726.3k6.4k shares |
| D. E. Shaw & Co., Inc. | New | $238.3k2.1k shares |
| Walleye Capital LLC | New | $238.3k2.1k shares |
| GUARDIAN CAPITAL LP | Unchanged | $121.4k5.6k shares |
| GROUP ONE TRADING LLC | Added | $34.0k300 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.0 pts · filed 2026-02-06 | 10.9% |
| PRIMECAP MANAGEMENT CO/CA/ 13G · institution +1.3 pts · filed 2026-08-06 | 9.9% |
| North Reef Capital Management LP 13G · institution +4.3 pts · filed 2026-08-14 | 9.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.1% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution -1.3 pts · filed 2026-08-13 | 5.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.3% |
Fell to 5% or below in the last year: FMR LLC (4.2%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), T. Rowe Price Investment Management, Inc. (3.7%, 2025-11-14)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $13.6m | $72.2k |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 2 | $699.8k | — |
| Q3 2025 | 0 | — | 2 | $575.4k | — |
| Q4 2025 | 0 | — | 1 | $17.8k | $17.8k |
| Q1 2026 | 0 | — | 1 | $52.5k | $52.5k |
| Q2 2026 | 0 | — | 1 | $43.5k | $43.5k |
| Q3 2026 | 0 | — | 2 | $1.1m | $44.1k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-10 | Cruger William Frank Jr. Director | Sold | $1.0m6.2k shares |
| 2026-09-10 | Pintoff Scott General Counsel and Secretary | Sold plan | $16.3k100 shares |
| 2026-08-10 | Pintoff Scott General Counsel and Secretary | Sold plan | $16.3k100 shares |
| 2026-07-10 | Pintoff Scott General Counsel and Secretary | Sold plan | $11.5k100 shares |
| 2026-06-10 | Pintoff Scott General Counsel and Secretary | Sold plan | $11.6k100 shares |
| 2026-05-11 | Pintoff Scott General Counsel and Secretary | Sold plan | $14.7k100 shares |
| 2026-04-10 | Pintoff Scott General Counsel and Secretary | Sold plan | $17.2k100 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 4.0m $453.9m | Reduced -75.3k |
| PRIMECAP MANAGEMENT CO/CA/ 0.24% of their portfolio | 3.5m $397.8m | Added +157.8k |
| North Reef Capital Management LP 14.77% of their portfolio | 3.4m $385.3m | Added +1.5m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 2.1m $238.4m | Reduced -63.4k |
| AQR CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 2.0m $222.8m | Reduced -696.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.5m $175.5m | Reduced -62.6k |
| FMR LLC 0.01% of their portfolio | 1.4m $159.5m | Reduced -114.4k |
| STATE STREET CORP 0.00% of their portfolio | 1.3m $145.4m | Added +912 |
| NEUBERGER BERMAN GROUP LLC 0.09% of their portfolio | 1.2m $139.6m | Added +263.9k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.0m $117.0m | Added +522.3k |
| BANK OF MONTREAL /CAN/ 0.04% of their portfolio | 1.0m $115.4m | Reduced -3.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 994.8k $112.9m | Added +131.8k |
| VAN ECK ASSOCIATES CORP 0.06% of their portfolio | 924.6k $104.9m | Reduced -314.7k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 597.9k $67.8m | Added +16.4k |
| NORGES BANK 0.01% of their portfolio | 572.4k $65.0m | Not comparable |
| TWO SIGMA INVESTMENTS, LP 0.05% of their portfolio | 543.9k $61.7m | Added +19.9k |
| GUARDCAP ASSET MANAGEMENT Ltd 4.42% of their portfolio | 536.3k $62.2m | Reduced -107.0k |
| Azora Capital LP 2.45% of their portfolio | 513.1k $58.2m | New |
| Davis Asset Management, L.P. 1.44% of their portfolio | 500.0k $56.7m | Added +391.2k |
| CITADEL ADVISORS LLC 0.03% of their portfolio | 481.7k $54.7m | Added +399.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 438.0k $48.3m | Added +5.2k |
| MORGAN STANLEY 0.00% of their portfolio | 422.9k $48.0m | Reduced -67.7k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.16% of their portfolio | 392.1k $44.5m | Added +382.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 330.8k $37.5m | Reduced -7.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 303.5k $34.4m | Added +39.7k |
| UBS Group AG 0.01% of their portfolio | 278.7k $31.6m | Added +6.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 257.6k $29.2m | Reduced -32.3k |
| RDST Capital LLC 2.32% of their portfolio | 247.1k $28.0m | Reduced -48.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 246.5k $28.0m | Added +10.2k |
| COOKE & BIELER LP 0.31% of their portfolio | 238.8k $27.1m | Added +12.5k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 223.7k $25.4m | Reduced -5.8k |
| HRT FINANCIAL LP 0.06% of their portfolio | 205.9k $23.4m | Added +68.9k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.02% of their portfolio | 204.3k $23.2m | Added +884 |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 202.7k $23.0m | Reduced -2.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 200.0k $22.7m | Added +32.9k |
| Connor, Clark & Lunn Investment Management Ltd. 0.04% of their portfolio | 186.7k $21.2m | Added +12.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 173.3k $19.7m | Reduced -8.5k |
| Freestone Grove Partners LP 0.13% of their portfolio | 172.8k $19.6m | New |
| Public Sector Pension Investment Board 0.05% of their portfolio | 157.3k $17.9m | Reduced -34.9k |
| Sone Capital Management, LLC 1.34% of their portfolio | 155.5k $17.7m | Reduced -4.4k |
| Nuveen, LLC 0.00% of their portfolio | 148.5k $16.8m | Added +387 |
| Invesco Ltd. 0.00% of their portfolio | 140.8k $16.0m | Added +22.5k |
| TUDOR INVESTMENT CORP ET AL 0.06% of their portfolio | 137.8k $15.6m | New |
| Champlain Investment Partners, LLC 0.40% of their portfolio | 136.1k $15.4m | Reduced -74.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 122.0k $13.8m | Reduced -173.5k |
| M&G PLC 0.07% of their portfolio | 121.3k $13.7m | New |
| BANK OF NOVA SCOTIA 0.02% of their portfolio | 115.4k $13.1m | Added +90.8k |
| CIBC Bancorp USA Inc. 0.02% of their portfolio | 115.0k $13.0m | Added +111.7k |
| EUBEL BRADY & SUTTMAN ASSET MANAGEMENT INC 1.54% of their portfolio | 114.3k $13.0m | Added +2.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 114.3k $13.0m | Reduced -7.4k |
| ALGERT GLOBAL LLC 0.15% of their portfolio | 112.4k $12.8m | Added +93.0k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 109.6k $12.4m | Reduced -977.6k |
| HEARTLAND ADVISORS INC 0.53% of their portfolio | 104.9k $11.9m | Added +46.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 104.9k $11.9m | Reduced -2.3k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 99.2k $11.3m | Added +99.1k |
| Walleye Capital LLC 0.05% of their portfolio | 94.0k $10.7m | Reduced -238.7k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 92.1k $10.5m | Reduced -53.5k |
| Invenomic Capital Management LP 0.61% of their portfolio | 90.4k $10.3m | New |
| Legal & General Group Plc 0.00% of their portfolio | 84.5k $9.6m | Reduced -6.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 79.4k $9.0m | Added +9.5k |
| Jump Financial, LLC 0.08% of their portfolio | 78.6k $8.9m | Added +66.0k |
| CIBC WORLD MARKET INC. 0.01% of their portfolio | 78.3k $8.9m | Added +74.3k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 77.4k $8.8m | Added +64.6k |
| FLOSSBACH VON STORCH SE 0.04% of their portfolio | 75.0k $8.5m | Reduced -33.1k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 72.7k $8.3m | Reduced -17.2k |
| Swiss National Bank 0.00% of their portfolio | 71.4k $8.1m | Reduced -2.3k |
| Trexquant Investment LP 0.05% of their portfolio | 66.7k $7.6m | Reduced -3.7k |
| CITIGROUP INC 0.00% of their portfolio | 64.8k $7.3m | Added +43.4k |
| Alpha Omega Wealth Management LLC 1.06% of their portfolio | 61.5k $7.0m | Added +50.6k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 56.6k $6.4m | Added +20.9k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 56.0k $6.4m | Added +25.8k |
| Y-Intercept (Hong Kong) Ltd 0.12% of their portfolio | 54.8k $6.2m | Added +51.7k |
| VAN DEN BERG MANAGEMENT I, INC 1.25% of their portfolio | 52.1k $5.9m | Added +20.6k |
| Brevan Howard Capital Management LP 0.08% of their portfolio | 51.0k $5.8m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 51.0k $5.8m | Added +15.5k |
| California Public Employees Retirement System 0.00% of their portfolio | 50.0k $5.7m | Reduced -22.6k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 48.0k $5.4m | Added +44.7k |
| Quantinno Capital Management LP 0.01% of their portfolio | 47.6k $5.4m | Added +585 |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 46.7k $5.3m | Added +7.2k |
| WILSON ASSET MANAGEMENT (INTERNATIONAL) PTY LTD 1.40% of their portfolio | 45.0k $5.1m | Added +5.6k |
| Mariner, LLC 0.01% of their portfolio | 44.8k $5.1m | Reduced -34.4k |
| Cerity Partners LLC 0.01% of their portfolio | 44.4k $5.0m | Reduced -39.6k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 44.4k $5.0m | Added +28.2k |
| T. Rowe Price Investment Management, Inc. 0.00% of their portfolio | 43.8k $5.0m | Reduced -436 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 42.4k $4.8m | Reduced -1.2k |
| DF DENT & CO INC 0.08% of their portfolio | 39.3k $4.5m | Reduced -1.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 39.1k $4.4m | Added +8.2k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 39.1k $4.4m | New |
| Corebridge Financial, Inc. 100.00% of their portfolio | 38.6k $4.2m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 38.5k $4.4m | Added +1.6k |
| Holocene Advisors, LP 0.01% of their portfolio | 38.3k $4.3m | Reduced -5.5k |
| Prana Capital Management, LP 0.13% of their portfolio | 37.9k $4.3m | Added +6.3k |
| FJ Capital Management LLC 0.55% of their portfolio | 37.2k $4.2m | New |
| Taylor Hoffman Capital Management LLC 0.99% of their portfolio | 35.9k $4.1m | Added +7.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 35.3k $4.0m | Reduced -284.0k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 34.4k $3.9m | Reduced -630 |
| READYSTATE ASSET MANAGEMENT LP 0.16% of their portfolio | 33.8k $3.8m | Added +8.9k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 33.6k $3.8m | Added +12.6k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 33.6k $3.8m | Added +97 |
| GW&K Investment Management, LLC 0.03% of their portfolio | 32.7k $3.7m | Reduced -8 |