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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 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.

Institutional holdersQ1 2026: 202 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 115 institutionsQ4 2025: 161 institutionsQ1 2026: 202 institutionsQ2 2026: 206 institutions
Value heldQ1 2026: $1.95B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $1.03BQ4 2025: $1.66BQ1 2026: $1.95BQ2 2026: $2.68B
Institutions holding MIAX and their total value by quarter
QuarterHoldersValue
Q2 2026206$2.68B
Q1 2026202$1.95B
Q4 2025161$1.66B
Q3 2025115$1.03B
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Miami International Holdings, Inc.; share changes are against Q4 2025.

Institutions holding MIAX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Avion Wealth15$00.00%00.0%Unchanged
Hughes Financial Services, LLC2$780.00%+2New
EverSource Wealth Advisors, LLC5$1950.00%+5New
Farther Finance Advisors, LLC5$1970.00%+5New
Central Trust Co7$2730.00%00.0%Unchanged
IFP Advisors, Inc8$3110.00%+8New
Essential Partners LLC9$3500.00%+9New
MAI Capital Management10$3900.00%+10New
Rothschild Investment LLC11$4280.00%+11New
Cornerstone Financial Management LLC12$4670.00%+12New
Financial Consulate, Inc13$5060.00%+13New
Allworth Financial LP15$5840.00%+15New
Zions Bancorporation, National Association25$9730.00%00.0%Unchanged
MCF Advisors LLC34$1.32K0.00%+34New
Quarry LP39$1.52K0.00%+39New
WPG Advisers, LLC81$3.15K0.00%−37−31.4%Reduced
SRS Capital Advisors, Inc.86$4.50K0.00%+86New
Parkside Financial Bank & Trust130$5.06K0.00%+130New
GAMMA Investing LLC136$5.29K0.00%+99+267.6%Added
Optiver Holding B.V.152,596$5.94K0.00%+311+0.2%Added
Cedar Mountain Advisors, LLC158$6.15K0.00%+158New
Pinpoint Asset Management (Singapore) Pte. Ltd.175$6.81K0.00%+175New
CWM, LLC186$7.24K0.00%+186New
Sterling Capital Management LLC464$18.1K0.00%−254−35.4%Reduced
Covestor Ltd583$23.0K0.02%+583New
FMR LLC651$25.3K0.00%−824−55.9%Reduced
The PNC Financial Services Group, Inc.659$25.6K0.00%+107+19.4%Added
Beacon Investment Advisory Services, Inc.700$27.2K0.00%+700New
National Bank of Canada700$28.1K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,049$40.8K0.00%+711+210.4%Added
Quent Capital, LLC1,160$43.5K0.00%+1,160New
HFM Investment Advisors, LLC1,301$50.6K0.02%+1,301New
Caitong International Asset Management Co., Ltd1,380$53.7K0.01%−101−6.8%Reduced
Fifth Third Bancorp1,576$61.3K0.00%+1,576New
Ameritas Investment Partners, Inc.1,912$74.4K0.00%00.0%Unchanged
New York State Teachers Retirement System2,170$84.0K0.00%+2,170New
Emerald Mutual Fund Advisers Trust2,500$97.3K0.00%00.0%Unchanged
Battery Global Advisors, LLC3,125$121.6K0.07%+3,125New
SG Americas Securities, LLC3,537$138.0K0.00%+1,162+48.9%Added
KLP Kapitalforvaltning AS4,000$155.7K0.00%+600+17.6%Added
STRS Ohio4,200$163.5K0.00%00.0%Unchanged
Vanguard Investments Australia, Ltd.4,448$173.1K0.00%+4,448New
State of Wyoming4,542$176.8K0.02%+3,948+664.6%Added
Brevan Howard Capital Management LP5,534$215.4K0.00%+5,534New
Stratos Wealth Partners, LTD.5,805$225.9K0.00%+5,805New
Stifel Financial Corp6,175$240.3K0.00%+1,425+30.0%Added
Concurrent Investment Advisors, LLC6,251$243.3K0.00%+6,251New
Stratos Wealth Advisors, LLC6,500$253.0K0.02%+6,500New
Police & Firemen's Retirement System of New Jersey6,912$269.0K0.00%+964+16.2%Added
MSRH, LLC7,200$280.2K0.25%+7,200New
J.W. Cole Advisors, Inc.8,289$322.6K0.01%+8,289New
Intech Investment Management LLC8,307$323.3K0.00%+8,307New
AQR Capital Management LLC8,476$329.9K0.00%+8,476New
Janus Henderson Group PLC8,600$334.5K0.00%00.0%Unchanged
Round Rock Advisors, LLC8,983$349.6K0.05%+1,995+28.5%Added
Promethium Advisors,llc9,033$351.6K0.18%+9,033New
Royal Bank of Canada10,301$401.0K0.00%+8,724+553.2%Added
Buckingham Strategic Partners10,323$401.8K0.00%+10,323New
Quinn Opportunity Partners LLC10,486$408.1K0.02%−78,026−88.2%Reduced
Man Group plc10,674$415.4K0.00%+10,674New
HMV Wealth Advisors, LLC10,683$415.8K0.20%+10,683New
Vanguard Asset Management, Ltd10,706$416.7K0.00%+10,706New
Boothbay Fund Management, LLC10,903$424.3K0.01%+10,903New
Independent Solutions Wealth Management, LLC11,056$430.3K0.06%+11,056New
Blackstone Group Inc.11,508$447.9K0.00%−63,492−84.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.11,545$449.3K0.00%+618+5.7%Added
Legal & General Group Plc11,650$453.4K0.00%−2,291−16.4%Reduced
Verdad Advisers, LP12,282$478.0K0.54%+12,282New
Jones Financial Companies LLLP13,467$502.5K0.00%+13,467New
UBS Asset Management Americas Inc13,110$510.2K0.00%+110+0.8%Added
Vanguard Global Advisers, LLC13,273$516.6K0.00%+13,273New
Natixis Advisors, L.P.13,418$522.0K0.00%+13,418New
Vinva Investment Management Ltd9,801$536.2K0.01%+9,801New
MetLife Investment Management13,871$539.9K0.00%+688+5.2%Added
IMC-Chicago, LLC14,577$567.3K0.01%+14,577New
SALT Holding Corp.15,173$590.5K0.36%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)15,275$594.5K0.00%+2,775+22.2%Added
Grandeur Peak Global Advisors, LLC15,771$613.8K0.14%−16,206−50.7%Reduced
California State Teachers Retirement System15,923$619.7K0.00%−107−0.7%Reduced
Dark Forest Capital Management LP15,940$620.4K0.06%+15,940New
Jain Global LLC17,143$667.2K0.01%+17,143New
Jump Financial, LLC18,966$738.2K0.01%−266,300−93.4%Reduced
Deutsche Bank AG20,421$794.8K0.00%+4,178+25.7%Added
Sig Brokerage, LP23,189$902.5K0.26%+23,189New
Voleon Capital Management LP24,037$935.5K0.02%+9,511+65.5%Added
Virginia Retirement Systems Et Al24,500$953.5K0.01%+13,400+120.7%Added
Simplex Trading, LLC25,016$973.6K0.03%+25,008+312,600.0%Added
Concentric Capital Strategies, LP25,753$1.00M0.09%+25,753New
Advisory Services Network, LLC26,682$1.04M0.01%+8,632+47.8%Added
HighTower Advisors, LLC28,751$1.12M0.00%+22,579+365.8%Added
XTX Topco Ltd29,167$1.14M0.02%−9,223−24.0%Reduced
Rhumbline Advisers29,210$1.14M0.00%+1,860+6.8%Added
Fred Alger Management, LLC29,604$1.15M0.01%+14,521+96.3%Added
Hudson Bay Capital Management LP29,636$1.15M0.01%−71,916−70.8%Reduced
Alliancebernstein L.P.26,300$1.17M0.00%+3,200+13.9%Added
Swiss National Bank33,800$1.32M0.00%+2,000+6.3%Added
Russell Investments Group, Ltd.34,773$1.35M0.00%−41,578−54.5%Reduced
Pekin Hardy Strauss, Inc.35,090$1.37M0.14%−1,200−3.3%Reduced
HRT Financial LP37,167$1.45M0.00%+37,167New
Atlas Wealth Partners, LLC37,707$1.47M1.51%+13,233+54.1%Added