Miami International Holdings, Inc. 13F holders
206 funds reported a position in Miami International Holdings, Inc. in their 13F for the quarter ended 30 June 2026, together 72.4 million shares worth $2.69 billion. Against the quarter before, 43 opened a position, 93 added, 45 trimmed and 41 sold out; together they bought a net 21.3 million shares. The largest holders: Horizon Kinetics Asset Management LLC, BlackRock, Inc. and T. Rowe Price Investment Management, Inc.
Funds holding206+4 on Q1 2026
Shares they held72.4Mworth $2.69 billion
Net bought on the quarter21.3M sharesabout $793.8 million at the funds' values
Funds buying to selling136 to 86opened or added, to cut or sold
Opened 43Added 93Held 24Trimmed 45Sold out 41
What each fund did in MIAX against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in MIAX in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 23 reported a position in Miami International Holdings, Inc.: 6 opened one, 6 added, 5 trimmed and 3 sold out, a net 561,872 shares sold.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Y-Intercept (Hong Kong) Ltd | +19,555 | 19,555 | new | 13F |
| New York State Teachers Retirement System | +14,731 | 16,901 | added | 13F |
| Capelight Capital Asset Management LP | +10,600 | 40,600 | added | 13F |
| MBL Wealth, LLC | -10,302 | 68,600 | trimmed | 13F |
| York GP, Ltd. | -10,000 | 220,729 | trimmed | 13F |
| Promethium Advisors,llc | +6,150 | 18,048 | added | 13F |
| State of Alaska, Department of Revenue | +3,245 | 3,245 | new | 13F |
| KBC Group NV | +3,130 | 3,130 | new | 13F |
| Sterling Capital Management LLC | +2,306 | 2,575 | added | 13F |
| Nisa Investment Advisors, LLC | +785 | 2,641 | added | 13F |
| Atlas Brown,Inc. | -338 | 44,568 | trimmed | 13F |
| Gamma Investing LLC | +139 | 296 | added | 13F |
| Versant Capital Management, Inc | +34 | 34 | new | 13F |
| CoreCap Advisors, LLC | +23 | 23 | new | 13F |
| Essential Partners LLC | -7 | 3 | trimmed | 13F |
| IFP Advisors, Inc | +6 | 6 | new | 13F |
| Farther Finance Advisors, LLC | -1 | 4 | trimmed | 13F |
| Assenagon Asset Management S.A. | -595,664 | 0 | sold out | 13F |
| Concurrent Investment Advisors, LLC | -6,251 | 0 | sold out | 13F |
| Financial Consulate, Inc. | -13 | 0 | sold out | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 6 reported a position in Miami International Holdings, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 1.4 million shares worth $51.9 million, 0.0% of its reported book. Sold out: Soros Fund Management, Renaissance Technologies, Citadel Advisors. In the quarter, 2 funds added or opened a position and 6 trimmed or sold out; together they sold a net 2.3 million shares, about $85.6 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 1,395,680 | $51.9 million | 0.0% | +615,898 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 888,109 | $33.0 million | 0.0% | -5,609 | trimmed | 30 June 2026 | 13F |
| Alyeska | 848,750 | $31.5 million | 0.1% | -598,704 | trimmed | 30 June 2026 | 13F |
| Norges Bank | 237,900 | $8.8 million | 0.0% | held | 30 June 2026 | 13F | |
| Millennium Management | 189,105 | $7.0 million | 0.0% | -329,596 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 27,236 | $1.0 million | 0.0% | +26,585 | added | 30 June 2026 | 13F |
| Soros Fund Management | 0 | $0 | 0.0% | -132,600 | exited | 30 June 2026 | 13F |
| Renaissance Technologies | 0 | $0 | 0.0% | -271,500 | exited | 30 June 2026 | 13F |
| Citadel Advisors | 0 | $0 | 0.0% | -1,607,780 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Horizon Kinetics Asset Management LLC | 7,842,173 | 10.83% | $291.4 million | 3.30% | +4,390,624 | 13F |
| BlackRock, Inc. | 5,071,754 | 7.00% | $188.5 million | 0.00% | +2,839,074 | 13F |
| T. Rowe Price Investment Management, Inc. | 5,032,970 | 6.95% | $187.0 million | 0.12% | +887,352 | 13F |
| Vanguard Portfolio Management LLC | 3,786,418 | 5.23% | $140.7 million | 0.01% | +2,411,472 | 13F |
| Susquehanna International Group, LLP | 3,355,043 | 4.63% | $124.7 million | 0.11% | +58,697 | 13F |
| Vanguard Capital Management LLC | 3,165,686 | 4.37% | $117.6 million | 0.00% | +1,750,707 | 13F |
| Invesco Ltd. | 2,020,650 | 2.79% | $75.1 million | 0.01% | +435,647 | 13F |
| J Digital 6 LLC | 1,807,234 | 2.50% | $67.2 million | 39.72% | new | 13F |
| Blair William & Co. | 1,769,432 | 2.44% | $65.8 million | 0.17% | +1,103,651 | 13F |
| Balyasny Asset Management L.P. | 1,682,924 | 2.32% | $62.5 million | 0.12% | new | 13F |
| American Century Companies Inc. | 1,587,196 | 2.19% | $59.0 million | 0.03% | +365,711 | 13F |
| State Street Corp. | 1,432,894 | 1.98% | $53.2 million | 0.00% | +720,565 | 13F |
| JPMorgan Chase & Co. | 1,427,881 | 1.97% | $52.7 million | 0.00% | +189,875 | 13F |
| Geode Capital Management, LLC | 1,395,680 | 1.93% | $51.9 million | 0.00% | +615,898 | 13F |
| Adage Capital Partners GP, L.l.c. | 1,143,920 | 1.58% | $42.5 million | 0.06% | -103,079 | 13F |
| Healthcare of Ontario Pension Plan Trust Fund | 1,039,449 | 1.44% | $38.6 million | 0.06% | +799,449 | 13F |
| Lord, Abbett & Co. LLC | 1,000,866 | 1.38% | $37.2 million | 0.11% | +140,179 | 13F |
| Morgan Stanley | 950,593 | 1.31% | $35.3 million | 0.00% | -196,363 | 13F |
| Allspring Global Investments Holdings, LLC | 857,682 | 1.18% | $33.5 million | 0.05% | -254,579 | 13F |
| Two Sigma Investments, LP | 888,109 | 1.23% | $33.0 million | 0.03% | -5,609 | 13F |
| Bank of America Corp. | 856,980 | 1.18% | $31.8 million | 0.00% | -43,902 | 13F |
| Alyeska Investment Group, L.P. | 848,750 | 1.17% | $31.5 million | 0.08% | -598,704 | 13F |
| Price T Rowe Associates Inc. | 844,464 | 1.17% | $31.4 million | 0.00% | +685,278 | 13F |
| Franklin Resources Inc. | 784,799 | 1.08% | $29.2 million | 0.01% | +216,625 | 13F |
| Walleye Capital LLC | 728,034 | 1.01% | $27.1 million | 0.14% | +689,512 | 13F |
| Westfield Capital Management Co. LP | 700,741 | 0.97% | $26.0 million | 0.09% | new | 13F |
| NewEdge Advisors, LLC | 681,610 | 0.94% | $25.3 million | 0.07% | +642,585 | 13F |
| Nuveen, LLC | 668,115 | 0.92% | $24.8 million | 0.01% | +436,207 | 13F |
| Caldwell Investment Management Ltd. | 600,000 | 0.83% | $22.3 million | 14.63% | -63,810 | 13F |
| Assenagon Asset Management S.A. | 595,664 | 0.82% | $22.1 million | 0.01% | 13F | |
| UBS Group AG | 567,797 | 0.78% | $21.1 million | 0.00% | +144,392 | 13F |
| Driehaus Capital Management LLC | 566,052 | 0.78% | $21.0 million | 0.12% | +169,354 | 13F |
| Northern Trust Corp. | 562,337 | 0.78% | $20.9 million | 0.00% | +328,369 | 13F |
| Ameriprise Financial Inc. | 559,485 | 0.77% | $20.8 million | 0.00% | +50,033 | 13F |
| Seven Grand Managers, LLC | 550,000 | 0.76% | $20.4 million | 0.82% | no change | 13F |
| Ghisallo Capital Management LLC | 500,000 | 0.69% | $18.6 million | 0.44% | -500,000 | 13F |
| Clearstead Advisors, LLC | 473,937 | 0.65% | $17.6 million | 0.17% | -29,725 | 13F |
| Royce & Associates LP | 452,813 | 0.63% | $16.8 million | 0.14% | +143,537 | 13F |
| Victory Capital Management Inc. | 427,425 | 0.59% | $15.9 million | 0.01% | +37,855 | 13F |
| Massachusetts Financial Services Co. | 406,274 | 0.56% | $15.1 million | 0.01% | +64,965 | 13F |
| Goldman Sachs Group Inc. | 399,844 | 0.55% | $14.9 million | 0.00% | -26,464 | 13F |
| BNP Paribas Financial Markets | 394,688 | 0.55% | $14.7 million | 0.01% | -177,768 | 13F |
| Charles Schwab Investment Management Inc. | 373,541 | 0.52% | $13.9 million | 0.00% | +136,232 | 13F |
| Allianz Asset Management GmbH | 359,261 | 0.50% | $13.4 million | 0.01% | new | 13F |
| D. E. Shaw & Co., Inc. | 355,528 | 0.49% | $13.2 million | 0.01% | +34,766 | 13F |
| Tocqueville Asset Management L.P. | 338,225 | 0.47% | $12.6 million | 0.17% | +26,090 | 13F |
| Vanguard Fiduciary Trust Co. | 315,336 | 0.44% | $11.7 million | 0.00% | +112,748 | 13F |
| Sei Investments Co. | 307,062 | 0.42% | $11.4 million | 0.01% | -219,301 | 13F |
| Barclays PLC | 295,775 | 0.41% | $11.0 million | 0.00% | +21,528 | 13F |
| Burkehill Global Management, LP | 290,000 | 0.40% | $10.8 million | 0.40% | no change | 13F |
The 50 largest of the 206 funds that reported a position in MIAX in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on MIAX
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 125,200 | $4.7 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 54,100 | $2.0 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 27 October 2026 | 13G/A | BlackRock, Inc. and 1 other | 6.1 million | 6.2% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 August 2026 | 13G | T. Rowe Price Investment Management, Inc. and 1 other | 5.0 million | 5.3% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 July 2026 | 13G | BlackRock, Inc. and 1 other | 4.9 million | 5.1% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 21 May 2026 | 13D/A | Horizon Kinetics Asset Management LLC and 1 other | 7.4 million | 7.8% | 19 May 2026 | HKAM acquired the securities reported herein on behalf of the Managed Accounts for investment purposes. In the ordinary course of its business, HKAM intends to regularly review its equity interest in the Issuer and may, from time to time, a | EDGAR |
| 28 April 2026 | 13D/A | Horizon Kinetics Asset Management LLC and 1 other | 11.2 million | 12.2% | 24 April 2026 | Item 4 is hereby amended and restated in its entirety to read as follows: HKAM acquired the securities reported herein on behalf of the Managed Accounts for investment purposes. In the ordinary course of its business, HKAM intends to regula | EDGAR |
| 14 April 2026 | 13D/A | Horizon Kinetics Asset Management LLC | 11.1 million | 12.1% | 7 April 2026 | Item 4 is hereby amended and restated in its entirety to read as follows: HKAM acquired the securities reported herein on behalf of the Managed Accounts for investment purposes. In the ordinary course of its business, HKAM intends to regula | EDGAR |
| 26 November 2025 | 13D/A | Horizon Kinetics Asset Management LLC | 9.5 million | 11.7% | 24 November 2025 | HKAM acquired the securities reported herein on behalf of the Managed Accounts for investment purposes. In the ordinary course of its business, HKAM intends to regularly review its equity interest in the Issuer and may, from time to time, a | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 21 September 2026 | 43,506 | $38.79 | SEC |
| 17 September 2026 | 1,072 | $38.04 | SEC |
| 10 September 2026 | 14,983 | $42.89 | SEC |
| 9 September 2026 | 1,170 | $43.46 | SEC |
| 3 September 2026 | 91,885 | $40.62 | SEC |
| 24 August 2026 | 2 | $42.59 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.