MarketAxess Holdings Inc. MKTX
165.59 USD +0.05 (+0.03%)
At closeNov 6, 2026, 4:00 PM EST
165.59 0.00 0.00%
After hours · Nov 6, 4:00 PM ET
165.45 Day range 165.68
108.75 52-week range 195.97
- YTD
- -8.64%
- 1 year
- -0.10%
Held by funds
200 US ETFs and mutual funds hold MKTX · largest positions
Ownership
Held by insiders 0.87%
Held by institutions 110.65%
Float held by institutions 111.63%
Institutions 567
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 11.36% | 3,999,836 | 662.33M | Jun 29, 2026 |
| Primecap Management Company | 9.96% | 3,504,905 | 580.38M | Jun 29, 2026 |
| North Reef Capital Management LP | 9.65% | 3,395,000 | 562.18M | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 5.97% | 2,100,273 | 347.78M | Jun 29, 2026 |
| AQR Capital Management, LLC | 5.65% | 1,987,288 | 329.08M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.39% | 1,546,670 | 256.11M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| iShares Trust-iShares Core S&P Small-Cap ETF | 5.99% | 2,106,790 | 348.86M | Sep 29, 2026 |
| VANGUARD HORIZON FUNDS-Vanguard Capital Opportunity Fund | 5.21% | 1,833,050 | 303.53M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.05% | 1,072,669 | 177.62M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.20% | 773,354 | 128.06M | Jun 29, 2026 |
| PRIMECAP Odyssey Funds-PRIMECAP Odyssey Aggressive Growth Fund | 2.01% | 707,420 | 117.14M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 1.16% | 407,626 | 67.50M | Jun 29, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BEGLEITER STEVEN L | Director | Stock Award(Grant) | Jun 9, 2026 | 12,074 |
| BERRY DEAN | Officer | Stock Award(Grant) | Sep 30, 2025 | 26,017 |
| CASPER STEPHEN P | Director | Sale | Sep 7, 2025 | 0 |
| CHWICK JANE P | Director | Stock Gift | Aug 6, 2026 | 9,223 |
| CONCANNON CHRISTOPHER R | Chief Executive Officer | Stock Award(Grant) | Feb 12, 2026 | 53,949 |
| HERNANDEZ CARLOS MAURICIO | Director | Stock Gift | Jun 17, 2026 | 0 |