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, Q1 2026
Institutional positions in Miami International 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
- 202
- +46 vs. Q4 2025
- Shares held
- 50.2M
- +15.0M (+42.5%) vs. Q4 2025
- Total value
- $1.95B
- +$390.9M (+25.1%) vs. Q4 2025
- New holders
- 80
- 84 more added
- Sold out
- 34
- 26 more reduced
5 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 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, Q1 2026
Shares, value and share of portfolio for each institution holding Miami International Holdings, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Walleye Capital LLC | 38,522 | $1.50M | 0.01% | +29,059+307.1% | Added |
| Moors & Cabot, Inc. | 38,512 | $1.50M | 0.06% | +25,672+199.9% | Added |
| Atlas Wealth Partners, LLC | 37,707 | $1.47M | 1.51% | +13,233+54.1% | Added |
| HRT Financial LP | 37,167 | $1.45M | 0.00% | +37,167 | New |
| Pekin Hardy Strauss, Inc. | 35,090 | $1.37M | 0.14% | −1,200−3.3% | Reduced |
| Russell Investments Group, Ltd. | 34,773 | $1.35M | 0.00% | −41,578−54.5% | Reduced |
| Swiss National Bank | 33,800 | $1.32M | 0.00% | +2,000+6.3% | Added |
| Alliancebernstein L.P. | 26,300 | $1.17M | 0.00% | +3,200+13.9% | Added |
| Hudson Bay Capital Management LP | 29,636 | $1.15M | 0.01% | −71,916−70.8% | Reduced |
| Fred Alger Management, LLC | 29,604 | $1.15M | 0.01% | +14,521+96.3% | Added |
| Rhumbline Advisers | 29,210 | $1.14M | 0.00% | +1,860+6.8% | Added |
| XTX Topco Ltd | 29,167 | $1.14M | 0.02% | −9,223−24.0% | Reduced |
| HighTower Advisors, LLC | 28,751 | $1.12M | 0.00% | +22,579+365.8% | Added |
| Advisory Services Network, LLC | 26,682 | $1.04M | 0.01% | +8,632+47.8% | Added |
| Concentric Capital Strategies, LP | 25,753 | $1.00M | 0.09% | +25,753 | New |
| Simplex Trading, LLC | 25,016 | $973.6K | 0.03% | +25,008+312,600.0% | Added |
| Virginia Retirement Systems Et Al | 24,500 | $953.5K | 0.01% | +13,400+120.7% | Added |
| Voleon Capital Management LP | 24,037 | $935.5K | 0.02% | +9,511+65.5% | Added |
| Sig Brokerage, LP | 23,189 | $902.5K | 0.26% | +23,189 | New |
| Deutsche Bank AG | 20,421 | $794.8K | 0.00% | +4,178+25.7% | Added |
| Jump Financial, LLC | 18,966 | $738.2K | 0.01% | −266,300−93.4% | Reduced |
| Jain Global LLC | 17,143 | $667.2K | 0.01% | +17,143 | New |
| Dark Forest Capital Management LP | 15,940 | $620.4K | 0.06% | +15,940 | New |
| California State Teachers Retirement System | 15,923 | $619.7K | 0.00% | −107−0.7% | Reduced |
| Grandeur Peak Global Advisors, LLC | 15,771 | $613.8K | 0.14% | −16,206−50.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 15,275 | $594.5K | 0.00% | +2,775+22.2% | Added |
| SALT Holding Corp. | 15,173 | $590.5K | 0.36% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 14,577 | $567.3K | 0.01% | +14,577 | New |
| MetLife Investment Management | 13,871 | $539.9K | 0.00% | +688+5.2% | Added |
| Vinva Investment Management Ltd | 9,801 | $536.2K | 0.01% | +9,801 | New |
| Natixis Advisors, L.P. | 13,418 | $522.0K | 0.00% | +13,418 | New |
| Vanguard Global Advisers, LLC | 13,273 | $516.6K | 0.00% | +13,273 | New |
| UBS Asset Management Americas Inc | 13,110 | $510.2K | 0.00% | +110+0.8% | Added |
| Jones Financial Companies LLLP | 13,467 | $502.5K | 0.00% | +13,467 | New |
| Verdad Advisers, LP | 12,282 | $478.0K | 0.54% | +12,282 | New |
| Legal & General Group Plc | 11,650 | $453.4K | 0.00% | −2,291−16.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 11,545 | $449.3K | 0.00% | +618+5.7% | Added |
| Blackstone Group Inc. | 11,508 | $447.9K | 0.00% | −63,492−84.7% | Reduced |
| Independent Solutions Wealth Management, LLC | 11,056 | $430.3K | 0.06% | +11,056 | New |
| Boothbay Fund Management, LLC | 10,903 | $424.3K | 0.01% | +10,903 | New |
| Vanguard Asset Management, Ltd | 10,706 | $416.7K | 0.00% | +10,706 | New |
| HMV Wealth Advisors, LLC | 10,683 | $415.8K | 0.20% | +10,683 | New |
| Man Group plc | 10,674 | $415.4K | 0.00% | +10,674 | New |
| Quinn Opportunity Partners LLC | 10,486 | $408.1K | 0.02% | −78,026−88.2% | Reduced |
| Buckingham Strategic Partners | 10,323 | $401.8K | 0.00% | +10,323 | New |
| Royal Bank of Canada | 10,301 | $401.0K | 0.00% | +8,724+553.2% | Added |
| Promethium Advisors,llc | 9,033 | $351.6K | 0.18% | +9,033 | New |
| Round Rock Advisors, LLC | 8,983 | $349.6K | 0.05% | +1,995+28.5% | Added |
| Janus Henderson Group PLC | 8,600 | $334.5K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 8,476 | $329.9K | 0.00% | +8,476 | New |
| Intech Investment Management LLC | 8,307 | $323.3K | 0.00% | +8,307 | New |
| J.W. Cole Advisors, Inc. | 8,289 | $322.6K | 0.01% | +8,289 | New |
| MSRH, LLC | 7,200 | $280.2K | 0.25% | +7,200 | New |
| Police & Firemen's Retirement System of New Jersey | 6,912 | $269.0K | 0.00% | +964+16.2% | Added |
| Stratos Wealth Advisors, LLC | 6,500 | $253.0K | 0.02% | +6,500 | New |
| Concurrent Investment Advisors, LLC | 6,251 | $243.3K | 0.00% | +6,251 | New |
| Stifel Financial Corp | 6,175 | $240.3K | 0.00% | +1,425+30.0% | Added |
| Stratos Wealth Partners, LTD. | 5,805 | $225.9K | 0.00% | +5,805 | New |
| Brevan Howard Capital Management LP | 5,534 | $215.4K | 0.00% | +5,534 | New |
| State of Wyoming | 4,542 | $176.8K | 0.02% | +3,948+664.6% | Added |
| Vanguard Investments Australia, Ltd. | 4,448 | $173.1K | 0.00% | +4,448 | New |
| STRS Ohio | 4,200 | $163.5K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 4,000 | $155.7K | 0.00% | +600+17.6% | Added |
| SG Americas Securities, LLC | 3,537 | $138.0K | 0.00% | +1,162+48.9% | Added |
| Battery Global Advisors, LLC | 3,125 | $121.6K | 0.07% | +3,125 | New |
| Emerald Mutual Fund Advisers Trust | 2,500 | $97.3K | 0.00% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 2,170 | $84.0K | 0.00% | +2,170 | New |
| Ameritas Investment Partners, Inc. | 1,912 | $74.4K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 1,576 | $61.3K | 0.00% | +1,576 | New |
| Caitong International Asset Management Co., Ltd | 1,380 | $53.7K | 0.01% | −101−6.8% | Reduced |
| HFM Investment Advisors, LLC | 1,301 | $50.6K | 0.02% | +1,301 | New |
| Quent Capital, LLC | 1,160 | $43.5K | 0.00% | +1,160 | New |
| Tower Research Capital LLC (TRC) | 1,049 | $40.8K | 0.00% | +711+210.4% | Added |
| National Bank of Canada | 700 | $28.1K | 0.00% | 00.0% | Unchanged |
| Beacon Investment Advisory Services, Inc. | 700 | $27.2K | 0.00% | +700 | New |
| The PNC Financial Services Group, Inc. | 659 | $25.6K | 0.00% | +107+19.4% | Added |
| FMR LLC | 651 | $25.3K | 0.00% | −824−55.9% | Reduced |
| Covestor Ltd | 583 | $23.0K | 0.02% | +583 | New |
| Sterling Capital Management LLC | 464 | $18.1K | 0.00% | −254−35.4% | Reduced |
| CWM, LLC | 186 | $7.24K | 0.00% | +186 | New |
| Pinpoint Asset Management (Singapore) Pte. Ltd. | 175 | $6.81K | 0.00% | +175 | New |
| Cedar Mountain Advisors, LLC | 158 | $6.15K | 0.00% | +158 | New |
| Optiver Holding B.V. | 152,596 | $5.94K | 0.00% | +311+0.2% | Added |
| GAMMA Investing LLC | 136 | $5.29K | 0.00% | +99+267.6% | Added |
| Parkside Financial Bank & Trust | 130 | $5.06K | 0.00% | +130 | New |
| SRS Capital Advisors, Inc. | 86 | $4.50K | 0.00% | +86 | New |
| WPG Advisers, LLC | 81 | $3.15K | 0.00% | −37−31.4% | Reduced |
| Quarry LP | 39 | $1.52K | 0.00% | +39 | New |
| MCF Advisors LLC | 34 | $1.32K | 0.00% | +34 | New |
| Zions Bancorporation, National Association | 25 | $973 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 15 | $584 | 0.00% | +15 | New |
| Financial Consulate, Inc | 13 | $506 | 0.00% | +13 | New |
| Cornerstone Financial Management LLC | 12 | $467 | 0.00% | +12 | New |
| Rothschild Investment LLC | 11 | $428 | 0.00% | +11 | New |
| MAI Capital Management | 10 | $390 | 0.00% | +10 | New |
| Essential Partners LLC | 9 | $350 | 0.00% | +9 | New |
| IFP Advisors, Inc | 8 | $311 | 0.00% | +8 | New |
| Central Trust Co | 7 | $273 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 5 | $197 | 0.00% | +5 | New |
| EverSource Wealth Advisors, LLC | 5 | $195 | 0.00% | +5 | New |