Miami International Holdings, Inc.
MIAX- Exchange
- NYSE
- Industry
- Security Brokers, Dealers & Flotation Companies
- SEC CIK
- 0001438472
In the last 90 days, Miami International Holdings, Inc. insiders filed 0 open-market purchases and 27 sales; 206 institutions reported holding it in 13F filings for Q2 2026, worth $2.68B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Miami International Holdings, Inc. as of Sep 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
- 115
- +115 vs. Q2 2025
- Shares held
- 25.5M
- +25.5M vs. Q2 2025
- Total value
- $1.03B
- +$1.03B vs. Q2 2025
- New holders
- 115
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MIAX 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 | 206 | $2.68B |
| Q1 2026 | 202 | $1.95B |
| Q4 2025 | 161 | $1.66B |
| Q3 2025 | 115 | $1.03B |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Miami International Holdings, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Susquehanna International Group, LLP | 3,284,852 | $132.2M | 0.19% | +3,284,852 | New |
| T. Rowe Price Investment Management, Inc. | 2,430,616 | $97.9M | 0.06% | +2,430,616 | New |
| Vanguard Group Inc | 1,382,516 | $55.7M | 0.00% | +1,382,516 | New |
| Horizon Kinetics Asset Management LLC | 1,382,403 | $55.7M | 0.68% | +1,382,403 | New |
| Alyeska Investment Group, L.P. | 1,265,736 | $51.0M | 0.15% | +1,265,736 | New |
| Citadel Advisors LLC | 975,050 | $39.3M | 0.03% | +975,050 | New |
| JPMorgan Chase & Co | 811,711 | $32.7M | 0.00% | +811,711 | New |
| North Reef Capital Management LP | 725,804 | $29.2M | 1.37% | +725,804 | New |
| BlackRock, Inc. | 707,771 | $28.5M | 0.00% | +707,771 | New |
| Caldwell Investment Management Ltd. | 663,810 | $27.1M | 17.76% | +663,810 | New |
| Adage Capital Partners GP, L.L.C. | 631,652 | $25.4M | 0.04% | +631,652 | New |
| Wellington Management Group LLP | 583,120 | $23.5M | 0.00% | +583,120 | New |
| Morgan Stanley | 520,977 | $21.0M | 0.00% | +520,977 | New |
| Jane Street Group, LLC | 489,598 | $19.7M | 0.02% | +489,598 | New |
| Invesco Ltd. | 458,720 | $18.5M | 0.00% | +458,720 | New |
| Allspring Global Investments Holdings, LLC | 453,668 | $17.7M | 0.03% | +453,668 | New |
| Franklin Resources Inc | 432,272 | $17.4M | 0.00% | +432,272 | New |
| Price T Rowe Associates Inc | 398,782 | $16.1M | 0.00% | +398,782 | New |
| Blair William & Co | 363,765 | $14.6M | 0.04% | +363,765 | New |
| Intrinsic Edge Capital Management LLC | 348,392 | $14.0M | 2.13% | +348,392 | New |
| Victory Capital Management Inc | 302,247 | $12.2M | 0.01% | +302,247 | New |
| Seven Grand Managers, LLC | 300,000 | $12.1M | 0.98% | +300,000 | New |
| Lord, Abbett & Co. LLC | 299,183 | $12.0M | 0.04% | +299,183 | New |
| Massachusetts Financial Services Co | 297,714 | $12.0M | 0.00% | +297,714 | New |
| Ghisallo Capital Management LLC | 275,000 | $11.1M | 0.36% | +275,000 | New |
| Woodline Partners LP | 261,111 | $10.5M | 0.05% | +261,111 | New |
| American Century Companies Inc | 255,282 | $10.3M | 0.01% | +255,282 | New |
| Federated Hermes, Inc. | 250,000 | $10.1M | 0.02% | +250,000 | New |
| Tocqueville Asset Management L.P. | 230,700 | $9.29M | 0.14% | +230,700 | New |
| Schonfeld Strategic Advisors LLC | 217,714 | $8.77M | 0.06% | +217,714 | New |
| Gillson Capital LP | 206,897 | $8.33M | 0.72% | +206,897 | New |
| Ameriprise Financial Inc | 206,281 | $8.30M | 0.00% | +206,281 | New |
| Royal Bank of Canada | 200,000 | $8.05M | 0.00% | +200,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 200,000 | $8.05M | 0.01% | +200,000 | New |
| Goldman Sachs Group Inc | 193,191 | $7.78M | 0.00% | +193,191 | New |
| Bank of America Corp | 192,641 | $7.76M | 0.00% | +192,641 | New |
| Driehaus Capital Management LLC | 191,613 | $7.71M | 0.06% | +191,613 | New |
| Quinn Opportunity Partners LLC | 162,656 | $6.55M | 0.48% | +162,656 | New |
| Maltese Capital Management LLC | 160,000 | $6.44M | 0.98% | +160,000 | New |
| Geode Capital Management, LLC | 159,394 | $6.42M | 0.00% | +159,394 | New |
| Millennium Management LLC | 158,482 | $6.38M | 0.01% | +158,482 | New |
| Jain Global LLC | 153,815 | $6.19M | 0.08% | +153,815 | New |
| Monashee Investment Management LLC | 150,000 | $6.04M | 3.01% | +150,000 | New |
| Burkehill Global Management, LP | 150,000 | $6.04M | 0.34% | +150,000 | New |
| Freestone Grove Partners LP | 125,000 | $5.03M | 0.04% | +125,000 | New |
| LMR Partners LLP | 109,795 | $4.42M | 0.06% | +109,795 | New |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 104,260 | $4.20M | 0.07% | +104,260 | New |
| SEI Investments Co | 101,191 | $4.07M | 0.00% | +101,191 | New |
| Unisphere Establishment | 100,000 | $4.03M | 0.03% | +100,000 | New |
| Charles Schwab Investment Management Inc | 88,434 | $3.56M | 0.00% | +88,434 | New |
| Marshall Wace, LLP | 77,960 | $3.14M | 0.00% | +77,960 | New |
| Coastal Bridge Advisors, LLC | 76,565 | $3.08M | 0.23% | +76,565 | New |
| Mad River Investors | 74,600 | $3.00M | 1.29% | +74,600 | New |
| TD Asset Management Inc | 63,460 | $2.55M | 0.00% | +63,460 | New |
| State Street Corp | 56,445 | $2.27M | 0.00% | +56,445 | New |
| ExodusPoint Capital Management, LP | 54,604 | $2.20M | 0.03% | +54,604 | New |
| Delta Global Management LP | 50,498 | $2.03M | 0.15% | +50,498 | New |
| Two Sigma Investments, LP | 50,011 | $2.01M | 0.00% | +50,011 | New |
| Blackstone Group Inc. | 50,000 | $2.01M | 0.01% | +50,000 | New |
| Harvey Partners, LLC | 50,000 | $2.01M | 0.18% | +50,000 | New |
| Tudor Investment Corp Et Al | 45,533 | $1.83M | 0.01% | +45,533 | New |
| Interval Partners, LP | 44,357 | $1.79M | 0.04% | +44,357 | New |
| Manufacturers Life Insurance Company, The | 42,994 | $1.73M | 0.00% | +42,994 | New |
| Hudson Bay Capital Management LP | 41,145 | $1.66M | 0.01% | +41,145 | New |
| Advisor Group Holdings, Inc. | 32,751 | $1.32M | 0.00% | +32,751 | New |
| Grandeur Peak Global Advisors, LLC | 31,538 | $1.27M | 0.17% | +31,538 | New |
| Northern Trust Corp | 30,068 | $1.21M | 0.00% | +30,068 | New |
| Caisse de Depot Et Placement du Quebec | 30,000 | $1.21M | 0.00% | +30,000 | New |
| Qube Research & Technologies Ltd | 28,122 | $1.13M | 0.00% | +28,122 | New |
| Davidson Kempner Capital Management LP | 26,000 | $1.05M | 0.01% | +26,000 | New |
| Pekin Hardy Strauss, Inc. | 25,650 | $1.03M | 0.10% | +25,650 | New |
| D. E. Shaw & Co., Inc. | 25,063 | $1.01M | 0.00% | +25,063 | New |
| Hound Partners, LLC | 25,000 | $1.01M | 0.13% | +25,000 | New |
| Weiss Asset Management LP | 25,000 | $1.01M | 0.01% | +25,000 | New |
| Fred Alger Management, LLC | 24,483 | $985.7K | 0.00% | +24,483 | New |
| Atlas Wealth Partners, LLC | 21,889 | $881.3K | 0.90% | +21,889 | New |
| First Trust Advisors LP | 20,938 | $843.0K | 0.00% | +20,938 | New |
| Jump Financial, LLC | 18,966 | $763.6K | 0.01% | +18,966 | New |
| Walleye Capital LLC | 17,131 | $689.7K | 0.01% | +17,131 | New |
| Barclays PLC | 15,902 | $640.2K | 0.00% | +15,902 | New |
| SALT Holding Corp. | 15,173 | $610.9K | 0.77% | +15,173 | New |
| Zimmer Partners, LP | 15,000 | $603.9K | 0.01% | +15,000 | New |
| Moors & Cabot, Inc. | 14,850 | $597.9K | 0.03% | +14,850 | New |
| Raymond James Financial Inc | 12,896 | $519.2K | 0.00% | +12,896 | New |
| Readystate Asset Management LP | 12,500 | $503.3K | 0.02% | +12,500 | New |
| Omers Administration Corp | 11,400 | $459.0K | 0.00% | +11,400 | New |
| Man Group plc | 11,008 | $443.2K | 0.00% | +11,008 | New |
| Squarepoint Ops LLC | 10,300 | $414.7K | 0.00% | +10,300 | New |
| CAPROCK Group, Inc. | 10,000 | $375.8K | 0.01% | +10,000 | New |
| Engineers Gate Manager LP | 8,977 | $361.4K | 0.00% | +8,977 | New |
| Quantessence Capital LLC | 8,507 | $342.5K | 0.11% | +8,507 | New |
| Centiva Capital, LP | 8,378 | $337.3K | 0.03% | +8,378 | New |
| Sompo Asset Management Co., Ltd. | 8,200 | $330.1K | 0.06% | +8,200 | New |
| UBS Group AG | 7,967 | $320.8K | 0.00% | +7,967 | New |
| Legal & General Group Plc | 7,500 | $302.2K | 0.00% | +7,500 | New |
| Limestone Investment Advisors LP | 6,900 | $277.8K | 0.12% | +6,900 | New |
| Bank of New York Mellon Corp | 6,635 | $267.1K | 0.00% | +6,635 | New |
| Sandia Investment Management LP | 6,600 | $265.7K | 0.79% | +6,600 | New |
| HRT Financial LP | 5,944 | $239.0K | 0.00% | +5,944 | New |
| HighTower Advisors, LLC | 5,175 | $208.3K | 0.00% | +5,175 | New |