Miami International HoldingsMIAX
13F holders, Q2 2026 (June 30)206holders +4
45new positions
41sold out
2famous investors
$37.18avg. 13F price*
At the end of Q2 2026, 206 institutions reported holding Miami International Holdings (MIAX) in their 13F filings, up 4 from Q1 2026. 45 opened new positions and 41 sold out. The largest holders were Horizon Kinetics Asset Management LLC ($291.4M), BlackRock, Inc. ($188.5M) and T. Rowe Price Investment Management, Inc. ($187.0M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Miami International Holdings
- CUSIP
- 59356Q108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 45 | $271.6M |
| Exits | 41 | $174.6M |
All 13F filers, Q1 2026 → Q2 2026: 30,541,423 shares bought and 8,896,484 shares sold, net +21,644,939 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 206 holders
| Horizon Kinetics Asset Management LLC | 3.30% | Add +127.2% | 7,842,173 | $291.4M |
| BlackRock, Inc. | 0.00% | Add +127.2% | 5,071,754 | $188.5M |
| T. Rowe Price Investment Management, Inc. | 0.12% | Add +21.4% | 5,032,970 | $187.0M |
| Vanguard Portfolio Management LLC | 0.01% | Add +175.4% | 3,786,418 | $140.7M |
| Susquehanna International Group, LLP | 0.11% | Add +1.8% | 3,355,043 | $124.7M |
| Vanguard Capital Management LLC | 0.00% | Add +123.7% | 3,165,686 | $117.6M |
| Invesco Ltd. | 0.01% | Add +27.5% | 2,020,650 | $75.1M |
| J Digital 6 LLC | 39.72% | New | 1,807,234 | $67.2M |
| Blair William & Co. | 0.17% | Add +165.8% | 1,769,432 | $65.8M |
| Balyasny Asset Management L.P. | 0.12% | New | 1,682,924 | $62.5M |
| American Century Companies Inc. | 0.03% | Add +29.9% | 1,587,196 | $59.0M |
| State Street Corp. | 0.00% | Add +101.2% | 1,432,894 | $53.2M |
| JPMorgan Chase & Co. | 0.00% | Add +15.3% | 1,427,881 | $52.7M |
| Geode Capital Management, LLC | 0.00% | Add +79.0% | 1,395,680 | $51.9M |
| Adage Capital Partners Gp, L.L.C. | 0.06% | Reduce -8.3% | 1,143,920 | $42.5M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.06% | Add +333.1% | 1,039,449 | $38.6M |
| Lord, Abbett & Co. LLC | 0.11% | Add +16.3% | 1,000,866 | $37.2M |
| Morgan Stanley | 0.00% | Reduce -17.1% | 950,593 | $35.3M |
| Allspring Global Investments Holdings, LLC | 0.05% | Reduce -22.9% | 857,682 | $33.5M |
| Two Sigma Investments, LP | 0.03% | Reduce -0.6% | 888,109 | $33.0M |
| Bank of America Corp. | 0.00% | Reduce -4.9% | 856,980 | $31.8M |
| Alyeska Investment Group, L.P. | 0.08% | Reduce -41.4% | 848,750 | $31.5M |
| T. Rowe Price Associates Inc. | 0.00% | Add +430.5% | 844,464 | $31.4M |
| Franklin Resources Inc. | 0.01% | Add +38.1% | 784,799 | $29.2M |
| Walleye Capital LLC | 0.14% | Add +1789.9% | 728,034 | $27.1M |
| Westfield Capital Management Co. LP | 0.09% | New | 700,741 | $26.0M |
| NewEdge Advisors, LLC | 0.08% | Add +1646.6% | 681,610 | $25.3M |
| Nuveen, LLC | 0.01% | Add +188.1% | 668,115 | $24.8M |
| Caldwell Investment Management Ltd. | 14.63% | Reduce -9.6% | 600,000 | $22.3M |
| UBS Group AG | 0.00% | Add +34.1% | 567,797 | $21.1M |
| Driehaus Capital Management LLC | 0.12% | Add +42.7% | 566,052 | $21.0M |
| Northern Trust Corp. | 0.00% | Add +140.3% | 562,337 | $20.9M |
| Ameriprise Financial Inc. | 0.00% | Add +9.8% | 559,485 | $20.8M |
| Seven Grand Managers, LLC | 0.83% | No change | 550,000 | $20.4M |
| Ghisallo Capital Management LLC | 0.45% | Reduce -50.0% | 500,000 | $18.6M |
| Clearstead Advisors, LLC | 0.17% | Reduce -5.9% | 473,937 | $17.6M |
| Royce & Associates LP | 0.14% | Add +46.4% | 452,813 | $16.8M |
| Victory Capital Management Inc. | 0.01% | Add +9.7% | 427,425 | $15.9M |
| Massachusetts Financial Services Co. | 0.00% | Add +19.0% | 406,274 | $15.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -6.2% | 399,844 | $14.9M |
| BNP Paribas Financial Markets | 0.01% | Reduce -31.1% | 394,688 | $14.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +57.4% | 373,541 | $13.9M |
| Allianz Asset Management GmbH | 0.01% | New | 359,261 | $13.4M |
| D. E. Shaw & Co. | 0.01% | Add +10.8% | 355,528 | $13.2M |
| Tocqueville Asset Management L.P. | 0.17% | Add +8.4% | 338,225 | $12.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +55.6% | 315,336 | $11.7M |
| Sei Investments Co. | 0.01% | Reduce -41.7% | 307,062 | $11.4M |
| Assenagon Asset Management S.A. | 0.01% | New | 297,832 | $11.1M |
| Barclays PLC | 0.00% | Add +7.8% | 295,775 | $11.0M |
| Burkehill Global Management, LP | 0.41% | No change | 290,000 | $10.8M |
| Mad River Investors | 4.02% | Add +255.7% | 289,000 | $10.7M |
| Marshall Wace, LLP | 0.01% | Add +134.4% | 287,480 | $10.7M |
| Langdon Equity Partners | 5.87% | New | 282,500 | $10.5M |
| Nearwater Capital Markets, Ltd | 0.18% | New | 279,000 | $10.4M |
| Jennison Associates LLC | 0.01% | New | 267,303 | $9.9M |
| Wellington Management Group LLP | 0.00% | Reduce -41.1% | 262,170 | $9.7M |
| Caprock Group, LLC | 0.19% | Add +158.4% | 259,873 | $9.7M |
| North Reef Capital Management LP | 0.36% | Reduce -75.2% | 251,354 | $9.3M |
| SG Americas Securities, LLC | 0.01% | Add +6756.6% | 242,518 | $9.0M |
| Norges Bank | 0.00% | — | 237,900 | $8.8M |
| York GP, Ltd. | 6.79% | New | 230,729 | $8.6M |
| Federated Hermes, Inc. | 0.01% | Add +11.6% | 224,410 | $8.3M |
| Philadelphia Financial Management of San Francisco, LLC | 2.28% | New | 223,715 | $8.3M |
| Bank of New York Mellon Corp | 0.00% | Add +182.6% | 220,387 | $8.2M |
| Schonfeld Strategic Advisors LLC | 0.04% | Add +26.9% | 200,181 | $7.4M |
| BlueCrest Capital Management Ltd | 0.36% | New | 200,000 | $7.4M |
| Hudson Bay Capital Management LP | 0.04% | Add +541.9% | 190,223 | $7.1M |
| Millennium Management | 0.00% | Reduce -63.5% | 189,105 | $7.0M |
| Coastal Bridge Advisors, LLC | 0.42% | Add +135.5% | 183,761 | $6.8M |
| Manufacturers Life Insurance Company, The | 0.01% | Add +8.1% | 177,273 | $6.6M |
| XTX Topco Ltd | 0.08% | Add +485.8% | 170,856 | $6.3M |
| Wells Fargo & Company | 0.00% | Add +168.3% | 164,132 | $6.1M |
| Osaic Holdings, Inc. | 0.01% | Add +251.3% | 157,902 | $5.9M |
| Optiver Holding B.V. | 0.08% | Reduce -0.2% | 152,285 | $5.7M |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 151,179 | $5.6M |
| Sone Capital Management, LLC | 0.39% | New | 138,903 | $5.2M |
| HMV Wealth Advisors, LLC | 2.00% | Add +1191.4% | 137,957 | $5.1M |
| Focus Partners Advisor Solutions, LLC | 0.04% | Add +1224.6% | 136,736 | $5.1M |
| FJ Capital Management LLC | 0.58% | New | 119,299 | $4.4M |
| Moors & Cabot, Inc. | 0.17% | Add +208.8% | 118,904 | $4.4M |
| One Charles Private Wealth Services, LLC | 1.02% | New | 118,419 | $4.4M |
| Raymond James Financial Inc. | 0.00% | Reduce -2.5% | 116,413 | $4.3M |
| HighTower Advisors, LLC | 0.00% | Add +290.6% | 112,298 | $4.2M |
| TD Asset Management Inc | 0.00% | Add +3.5% | 109,708 | $4.1M |
| Delta Global Management LP | 0.44% | Reduce -61.9% | 109,665 | $4.1M |
| Intrinsic Edge Capital Management LLC | 0.49% | Reduce -61.6% | 106,019 | $3.9M |
| Qube Research & Technologies Ltd | 0.00% | Add +22.6% | 101,105 | $3.8M |
| Bullseye Asset Management LLC | 1.85% | Add +48.9% | 98,170 | $3.6M |
| Alliancebernstein L.P. | 0.00% | Add +239.2% | 89,200 | $3.5M |
| Rhumbline Advisers | 0.00% | Add +207.0% | 89,668 | $3.3M |
| G2 Investment Partners Management LLC | 0.58% | Add +61.6% | 85,000 | $3.2M |
| Polar Capital Holdings Plc | 0.01% | Reduce -30.4% | 82,603 | $3.1M |
| MBL Wealth, LLC | 0.20% | Reduce -9.3% | 78,902 | $2.9M |
| Citigroup Inc. | 0.00% | Reduce -26.7% | 77,286 | $2.9M |
| Deutsche Bank AG | 0.00% | Add +267.5% | 75,052 | $2.8M |
| Spirepoint Private Client, LLC | 0.21% | No change | 68,883 | $2.6M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -57.7% | 63,344 | $2.4M |
| Voleon Capital Management LP | 0.04% | Add +142.3% | 58,234 | $2.2M |
| EagleClaw Capital Managment, LLC | 0.29% | New | 57,800 | $2.1M |
| Royal Bank of Canada | 0.00% | Add +417.0% | 53,256 | $2.0M |
"% of holder's portfolio" is MIAX's weight in each manager's 13F, not the share of Miami International Holdings the manager owns.