Miami International HoldingsMIAX

13F holders, Q3 2025 (September 30)
115holders
5famous investors
$40.25avg. 13F price*

At the end of Q3 2025, 115 institutions reported holding Miami International Holdings (MIAX) in their 13F filings. The largest holders were Susquehanna International Group, LLP ($132.2M), T. Rowe Price Investment Management, Inc. ($97.9M) and Vanguard Group Inc. ($55.7M). 5 famous investors held it, including George Soros (0.1% of Soros Fund Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).

Company
Miami International Holdings
CUSIP
59356Q108
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200250 Q3 2025: 115Q3 2025Q4 2025: 161Q4 2025Q1 2026: 202Q1 2026Q2 2026: 206Q2 2026

Total Exit/New Position Q3 2025

InstitutionsTotal Value
New Positions115$1.0B
Exits0$0

Ownership 115 holders

Susquehanna International Group, LLP 0.19% New 3,284,852 $132.2M
T. Rowe Price Investment Management, Inc. 0.06% New 2,430,616 $97.9M
Vanguard Group Inc. 0.00% New 1,382,516 $55.7M
Horizon Kinetics Asset Management LLC 0.68% New 1,382,403 $55.7M
Alyeska Investment Group, L.P. 0.15% New 1,265,736 $51.0M
Citadel Advisors 0.03% New 975,050 $39.3M
JPMorgan Chase & Co. 0.00% New 811,711 $32.7M
North Reef Capital Management LP 1.37% New 725,804 $29.2M
BlackRock, Inc. 0.00% New 707,771 $28.5M
Caldwell Investment Management Ltd. 17.76% New 663,810 $27.1M
Adage Capital Partners Gp, L.L.C. 0.04% New 631,652 $25.4M
Wellington Management Group LLP 0.00% New 583,120 $23.5M
Morgan Stanley 0.00% New 520,977 $21.0M
Jane Street Group, LLC 0.02% New 489,598 $19.7M
Invesco Ltd. 0.00% New 458,720 $18.5M
Allspring Global Investments Holdings, LLC 0.03% New 453,668 $17.7M
Franklin Resources Inc. 0.00% New 432,272 $17.4M
T. Rowe Price Associates Inc. 0.00% New 398,782 $16.1M
Blair William & Co. 0.04% New 363,765 $14.6M
Intrinsic Edge Capital Management LLC 2.13% New 348,392 $14.0M
Victory Capital Management Inc. 0.01% New 302,247 $12.2M
Seven Grand Managers, LLC 0.98% New 300,000 $12.1M
Lord, Abbett & Co. LLC 0.04% New 299,183 $12.0M
Massachusetts Financial Services Co. 0.00% New 297,714 $12.0M
Ghisallo Capital Management LLC 0.36% New 275,000 $11.1M
Woodline Partners LP 0.05% New 261,111 $10.5M
American Century Companies Inc. 0.01% New 255,282 $10.3M
Federated Hermes, Inc. 0.02% New 250,000 $10.1M
Tocqueville Asset Management L.P. 0.14% New 230,700 $9.3M
Schonfeld Strategic Advisors LLC 0.06% New 217,714 $8.8M
Gillson Capital LP 0.72% New 206,897 $8.3M
Ameriprise Financial Inc. 0.00% New 206,281 $8.3M
Healthcare of Ontario Pension Plan Trust Fund 0.01% New 200,000 $8.1M
Royal Bank of Canada 0.00% New 200,000 $8.1M
Goldman Sachs Group Inc. 0.00% New 193,191 $7.8M
Bank of America Corp. 0.00% New 192,641 $7.8M
Driehaus Capital Management LLC 0.06% New 191,613 $7.7M
Quinn Opportunity Partners LLC 0.48% New 162,656 $6.5M
Maltese Capital Management LLC 0.99% New 160,000 $6.4M
Geode Capital Management, LLC 0.00% New 159,394 $6.4M
Millennium Management 0.01% New 158,482 $6.4M
Jain Global LLC 0.09% New 153,815 $6.2M
Monashee Investment Management LLC 3.11% New 150,000 $6.0M
Burkehill Global Management, LP 0.35% New 150,000 $6.0M
Freestone Grove Partners LP 0.04% New 125,000 $5.0M
LMR Partners LLP 0.09% New 109,795 $4.4M
Soros Fund Management 0.10% New 104,260 $4.2M
Sei Investments Co. 0.00% New 101,191 $4.1M
Unisphere Establishment 0.03% New 100,000 $4.0M
Charles Schwab Investment Management Inc. 0.00% New 88,434 $3.6M
Marshall Wace, LLP 0.00% New 77,960 $3.1M
Coastal Bridge Advisors, LLC 0.23% New 76,565 $3.1M
Mad River Investors 1.29% New 74,600 $3.0M
TD Asset Management Inc 0.00% New 63,460 $2.6M
State Street Corp. 0.00% New 56,445 $2.3M
ExodusPoint Capital Management, LP 0.03% New 54,604 $2.2M
Delta Global Management LP 0.15% New 50,498 $2.0M
Two Sigma Investments, LP 0.00% New 50,011 $2.0M
Harvey Partners, LLC 0.18% New 50,000 $2.0M
Blackstone Inc. 0.01% New 50,000 $2.0M
Tudor Investment Corporation 0.01% New 45,533 $1.8M
Interval Partners, LP 0.04% New 44,357 $1.8M
Manufacturers Life Insurance Company, The 0.00% New 42,994 $1.7M
Hudson Bay Capital Management LP 0.01% New 41,145 $1.7M
Osaic Holdings, Inc. 0.00% New 32,751 $1.3M
Grandeur Peak Global Advisors, LLC 0.17% New 31,538 $1.3M
Northern Trust Corp. 0.00% New 30,068 $1.2M
Caisse de depot et placement du Quebec 0.00% New 30,000 $1.2M
Qube Research & Technologies Ltd 0.00% New 28,122 $1.1M
Davidson Kempner Capital Management LP 0.02% New 26,000 $1.0M
Pekin Hardy Strauss, Inc. 0.10% New 25,650 $1.0M
D. E. Shaw & Co. 0.00% New 25,063 $1.0M
Hound Partners, LLC 0.13% New 25,000 $1.0M
Weiss Asset Management LP 0.02% New 25,000 $1.0M
Fred Alger Management, LLC 0.00% New 24,483 $986K
Atlas Wealth Partners, LLC 0.90% New 21,889 $881K
First Trust Advisors LP 0.00% New 20,938 $843K
Jump Financial, LLC 0.01% New 18,966 $764K
Walleye Capital LLC 0.01% New 17,131 $690K
Barclays PLC 0.00% New 15,902 $640K
SALT Holding Corp. 0.77% New 15,173 $611K
Zimmer Partners, LP 0.01% New 15,000 $604K
Moors & Cabot, Inc. 0.03% New 14,850 $598K
Raymond James Financial Inc. 0.00% New 12,896 $519K
Readystate Asset Management LP 0.05% New 12,500 $503K
OMERS ADMINISTRATION Corp 0.00% New 11,400 $459K
Man Group plc 0.00% New 11,008 $443K
Squarepoint Ops LLC 0.00% New 10,300 $415K
Caprock Group, LLC 0.01% — 10,000 $376K
Engineers Gate Manager LP 0.00% New 8,977 $361K
Quantessence Capital LLC 0.11% New 8,507 $342K
Centiva Capital, LP 0.03% New 8,378 $337K
Sompo Asset Management Co., Ltd. 0.06% New 8,200 $330K
UBS Group AG 0.00% New 7,967 $321K
Legal & General Group Plc 0.00% New 7,500 $302K
Limestone Investment Advisors LP 0.13% New 6,900 $278K
Bank of New York Mellon Corp 0.00% New 6,635 $267K
Sandia Investment Management LP 0.81% New 6,600 $266K
HRT Financial LP 0.00% New 5,944 $239K
HighTower Advisors, LLC 0.00% New 5,175 $208K
Texas Yale Capital Corp. 0.01% New 5,000 $201K
Wells Fargo & Company 0.00% New 3,514 $141K
Tower Research Capital LLC (TRC) 0.00% New 2,751 $111K
Emerald Mutual Fund Advisers Trust 0.01% New 2,500 $101K
Manchester Capital Management LLC 0.00% New 732 $29K
National Bank of Canada 0.00% New 700 $29K
Citigroup Inc. 0.00% New 504 $20K
Game Plan Financial Advisors, LLC 0.01% New 500 $20K
Comerica Bank 0.00% New 317 $13K
Uniplan Investment Counsel, Inc. 0.00% New 119 $5K
Washington Trust Advisors, Inc. 0.00% New 106 $4K
Global Retirement Partners, LLC 0.00% New 81 $3K
FMR LLC 0.00% New 75 $3K
Bellevue Asset Management, LLC 0.00% New 40 $2K
Avion Wealth 0.00% New 15 $0

"% of holder's portfolio" is MIAX's weight in each manager's 13F, not the share of Miami International Holdings the manager owns.