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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 19 sales; 206 institutions reported holding it in 13F filings for Q2 2026, worth $2.68B in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Miami International Holdings, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of MIAX: Q2 2025 compared with Q3 2025
MeasureQ2 2025Q3 2025Change
Holders0115+115
Shares025.5M+25.5M
Value$0$1.03B+$1.03B

New holders (115)

Institutions that held Miami International Holdings, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Showing the largest 100 of 115 by value.

Institutions new to MIAX in Q3 2025
InstitutionSharesValue% of portfolio
Susquehanna International Group, LLP3,284,852$132.2M0.19%
T. Rowe Price Investment Management, Inc.2,430,616$97.9M0.06%
Vanguard Group Inc1,382,516$55.7M0.00%
Horizon Kinetics Asset Management LLC1,382,403$55.7M0.68%
Alyeska Investment Group, L.P.1,265,736$51.0M0.15%
Citadel Advisors LLC975,050$39.3M0.03%
JPMorgan Chase & Co811,711$32.7M0.00%
North Reef Capital Management LP725,804$29.2M1.37%
BlackRock, Inc.707,771$28.5M0.00%
Caldwell Investment Management Ltd.663,810$27.1M17.76%
Adage Capital Partners GP, L.L.C.631,652$25.4M0.04%
Wellington Management Group LLP583,120$23.5M0.00%
Morgan Stanley520,977$21.0M0.00%
Jane Street Group, LLC489,598$19.7M0.02%
Invesco Ltd.458,720$18.5M0.00%
Allspring Global Investments Holdings, LLC453,668$17.7M0.03%
Franklin Resources Inc432,272$17.4M0.00%
Price T Rowe Associates Inc398,782$16.1M0.00%
Blair William & Co363,765$14.6M0.04%
Intrinsic Edge Capital Management LLC348,392$14.0M2.13%
Victory Capital Management Inc302,247$12.2M0.01%
Seven Grand Managers, LLC300,000$12.1M0.98%
Lord, Abbett & Co. LLC299,183$12.0M0.04%
Massachusetts Financial Services Co297,714$12.0M0.00%
Ghisallo Capital Management LLC275,000$11.1M0.36%
Woodline Partners LP261,111$10.5M0.05%
American Century Companies Inc255,282$10.3M0.01%
Federated Hermes, Inc.250,000$10.1M0.02%
Tocqueville Asset Management L.P.230,700$9.29M0.14%
Schonfeld Strategic Advisors LLC217,714$8.77M0.06%
Gillson Capital LP206,897$8.33M0.72%
Ameriprise Financial Inc206,281$8.30M0.00%
Royal Bank of Canada200,000$8.05M0.00%
Healthcare of Ontario Pension Plan Trust Fund200,000$8.05M0.01%
Goldman Sachs Group Inc193,191$7.78M0.00%
Bank of America Corp192,641$7.76M0.00%
Driehaus Capital Management LLC191,613$7.71M0.06%
Quinn Opportunity Partners LLC162,656$6.55M0.48%
Maltese Capital Management LLC160,000$6.44M0.98%
Geode Capital Management, LLC159,394$6.42M0.00%
Millennium Management LLC158,482$6.38M0.01%
Jain Global LLC153,815$6.19M0.08%
Monashee Investment Management LLC150,000$6.04M3.01%
Burkehill Global Management, LP150,000$6.04M0.34%
Freestone Grove Partners LP125,000$5.03M0.04%
LMR Partners LLP109,795$4.42M0.06%
Soros Fund Management LLCSuperinvestorSoros Fund Management104,260$4.20M0.07%
SEI Investments Co101,191$4.07M0.00%
Unisphere Establishment100,000$4.03M0.03%
Charles Schwab Investment Management Inc88,434$3.56M0.00%
Marshall Wace, LLP77,960$3.14M0.00%
Coastal Bridge Advisors, LLC76,565$3.08M0.23%
Mad River Investors74,600$3.00M1.29%
TD Asset Management Inc63,460$2.55M0.00%
State Street Corp56,445$2.27M0.00%
ExodusPoint Capital Management, LP54,604$2.20M0.03%
Delta Global Management LP50,498$2.03M0.15%
Two Sigma Investments, LP50,011$2.01M0.00%
Blackstone Group Inc.50,000$2.01M0.01%
Harvey Partners, LLC50,000$2.01M0.18%
Tudor Investment Corp Et Al45,533$1.83M0.01%
Interval Partners, LP44,357$1.79M0.04%
Manufacturers Life Insurance Company, The42,994$1.73M0.00%
Hudson Bay Capital Management LP41,145$1.66M0.01%
Advisor Group Holdings, Inc.32,751$1.32M0.00%
Grandeur Peak Global Advisors, LLC31,538$1.27M0.17%
Northern Trust Corp30,068$1.21M0.00%
Caisse de Depot Et Placement du Quebec30,000$1.21M0.00%
Qube Research & Technologies Ltd28,122$1.13M0.00%
Davidson Kempner Capital Management LP26,000$1.05M0.01%
Pekin Hardy Strauss, Inc.25,650$1.03M0.10%
D. E. Shaw & Co., Inc.25,063$1.01M0.00%
Hound Partners, LLC25,000$1.01M0.13%
Weiss Asset Management LP25,000$1.01M0.01%
Fred Alger Management, LLC24,483$985.7K0.00%
Atlas Wealth Partners, LLC21,889$881.3K0.90%
First Trust Advisors LP20,938$843.0K0.00%
Jump Financial, LLC18,966$763.6K0.01%
Walleye Capital LLC17,131$689.7K0.01%
Barclays PLC15,902$640.2K0.00%
SALT Holding Corp.15,173$610.9K0.77%
Zimmer Partners, LP15,000$603.9K0.01%
Moors & Cabot, Inc.14,850$597.9K0.03%
Raymond James Financial Inc12,896$519.2K0.00%
Readystate Asset Management LP12,500$503.3K0.02%
Omers Administration Corp11,400$459.0K0.00%
Man Group plc11,008$443.2K0.00%
Squarepoint Ops LLC10,300$414.7K0.00%
CAPROCK Group, Inc.10,000$375.8K0.01%
Engineers Gate Manager LP8,977$361.4K0.00%
Quantessence Capital LLC8,507$342.5K0.11%
Centiva Capital, LP8,378$337.3K0.03%
Sompo Asset Management Co., Ltd.8,200$330.1K0.06%
UBS Group AG7,967$320.8K0.00%
Legal & General Group Plc7,500$302.2K0.00%
Limestone Investment Advisors LP6,900$277.8K0.12%
Bank of New York Mellon Corp6,635$267.1K0.00%
Sandia Investment Management LP6,600$265.7K0.79%
HRT Financial LP5,944$239.0K0.00%
HighTower Advisors, LLC5,175$208.3K0.00%

Sold out (0)

Institutions that held Miami International Holdings, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

None.