Miami International (MIAX) Institutional Ownership $51.42 -0.02 (-0.05%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$51.40 -0.02 (-0.04%) As of 05/22/2026 07:15 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Miami International (NYSE:MIAX)Number ofInstitutional Buyers(last 12 months)130TotalInstitutional Inflows(last 12 months)$995.37MNumber ofInstitutional Sellers(last 12 months)15TotalInstitutional Outflows(last 12 months)$135.07M Get MIAX Insider Trade Alerts Want to know when executives and insiders are buying or selling Miami International stock? 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Skip Chart & View Institutional Buying and Selling Data MIAX Institutional Buying and Selling by Quarter Miami International Major Shareholders & Ownership History ExportReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/19/2026 Bank of America Corp DE900,882$35.06M0.0%+196.5%0.949% 5/18/2026 Royal Bank of Canada10,301$401K0.0%+553.2%0.011% 5/16/2026 The Manufacturers Life Insurance Company 163,981$6.38M0.0%+11.6%0.173% 5/16/2026 Quantinno Capital Management LP55,487$2.16M0.0%N/A0.058% 5/15/2026 Delta Global Management LP287,659$11.20M0.9%+3.1%0.303% 5/15/2026 North Reef Capital Management LP1,014,274$39.48M1.4%-19.8%1.069% 5/15/2026 Entropy Technologies LP40,076$1.56M0.1%N/A0.042% 5/14/2026 Healthcare of Ontario Pension Plan Trust Fund240,000$9.34M0.0%+2.5%0.253% 5/14/2026 Renaissance Technologies LLC271,500$10.57M0.0%+39.2%0.286% 5/14/2026 Arrowstreet Capital Limited Partnership149,904$5.83M0.0%N/A0.158% Get the Latest News and Ratings for MIAX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Miami International and its competitors with MarketBeat's FREE daily newsletter. 5/14/2026 Sei Investments Co.526,363$20.49M0.0%+54.7%0.555% 5/14/2026 Walleye Capital LLC38,522$1.50M0.0%+307.1%0.041% 5/14/2026 State of Wyoming4,542$177K0.0%+664.6%0.005% 5/7/2026 Swiss National Bank33,800$1.32M0.0%+6.3%0.036% 5/6/2026 Allspring Global Investments Holdings LLC1,112,261$43.79M0.1%+19.3%1.173% 5/5/2026 Bank of New York Mellon Corp77,990$3.04M0.0%+29.1%0.082% 5/1/2026 Fifth Third Bancorp1,576$61K0.0%N/A0.002% 4/30/2026 Atlas Wealth Partners LLC37,707$1.47M1.5%+54.1%0.041% 4/27/2026 New York State Teachers Retirement System2,170$84K0.0%N/A0.002% 4/23/2026 Mad River Investors81,250$3.16M1.1%+8.3%0.089% 4/17/2026 Atlas Brown Inc.50,974$1.98M0.6%N/A0.056% 4/16/2026 SG Americas Securities LLC3,537$138K0.0%+48.9%0.004% 3/3/2026 Caitong International Asset Management Co. Ltd1,481$66K0.0%N/A0.002% 2/19/2026 T. Rowe Price Investment Management Inc.3,025,712$134.28M0.1%+24.5%3.716% 2/19/2026 Invesco Ltd.1,278,966$56.76M0.0%+178.8%1.571% 2/18/2026 Delta Global Management LP279,029$12.38M0.6%+452.6%0.343% 2/18/2026 Coastal Bridge Advisors LLC77,415$3.44M0.3%+1.1%0.095% 2/18/2026 XTX Topco Ltd38,390$1.70M0.0%N/A0.047% 2/18/2026 one8zero8 LLC58,415$2.59M0.6%N/A0.072% 2/18/2026 VARCOV Co.22,389$994K0.4%N/A0.027% 2/18/2026 Wellington Management Group LLP616,118$27.34M0.0%+5.7%0.757% 2/18/2026 Symmetry Investments LP22,000$976K0.1%N/A0.027% 2/18/2026 Tudor Investment Corp ET AL56,006$2.49M0.0%+23.0%0.069% 2/18/2026 Prana Capital Management LP17,188$763K0.0%N/A0.021% 2/18/2026 Quadrature Capital Ltd31,915$1.42M0.0%N/A0.039% 2/18/2026 Millennium Management LLC284,664$12.63M0.0%+79.6%0.350% 2/18/2026 Janus Henderson Group PLC8,600$382K0.0%N/A0.011% 2/18/2026 Element Capital Management LLC27,855$1.24M0.6%N/A0.034% 2/18/2026 Armistice Capital LLC5,947$264K0.0%N/A0.007% 2/17/2026 Schonfeld Strategic Advisors LLC100,000$4.44M0.0%-54.1%0.123% The Iran War Just Broke the Gold Market (Ad)The Iran war isn't just a geopolitical event. It's a financial one. Within hours of the strikes, oil surged… Defense stocks exploded…And gold ripped past $5,000.You can see the evidence — and the ticker symbol — here >>>2/17/2026 Burkehill Global Management LP290,000$12.87M0.8%+93.3%0.356% 2/17/2026Sandia Investment Management LP13,000$577K1.4%+97.0%0.016% 2/17/2026 Unisphere Establishment135,000$5.99M0.0%+35.0%0.166% 2/17/2026 North Reef Capital Management LP1,265,000$56.14M2.3%+74.3%1.553% 2/17/2026 Jump Financial LLC285,266$12.66M0.2%+1,404.1%0.350% 2/17/2026 Price T Rowe Associates Inc. MD130,486$5.79M0.0%-67.3%0.160% 2/17/2026 T. Rowe Price Investment Management Inc.510,027$22.64M0.0%-79.0%0.626% 2/17/2026 Osaic Holdings Inc.40,222$1.79M0.0%+22.8%0.049% 2/17/2026 Advisory Services Network LLC18,050$801K0.0%N/A0.022% 2/17/2026 Ghisallo Capital Management LLC557,500$24.74M1.1%+102.7%0.685% 2/17/2026 Adage Capital Partners GP L.L.C.881,329$39.11M0.1%+39.5%1.082% 2/17/2026 California State Teachers Retirement System16,030$711K0.0%N/A0.020% 2/17/2026 Russell Investments Group Ltd.76,351$3.39M0.0%N/A0.094% 2/17/2026 State of Wisconsin Investment Board42,556$1.89M0.0%N/A0.052% 2/17/2026 Fred Alger Management LLC15,083$669K0.0%-38.4%0.019% 2/17/2026 ExodusPoint Capital Management LP10,970$487K0.0%-62.9%0.013% 2/17/2026 Royal Bank of Canada1,577$69K0.0%-99.2%0.002% 2/17/2026 Blair William & Co. IL654,845$29.06M0.1%+80.0%0.804% 2/17/2026 Polar Capital Holdings Plc123,992$5.50M0.0%N/A0.152% 2/17/2026 Delta Global Management LP279,029$12.38M0.6%+452.6%0.343% 2/17/2026 Maltese Capital Management LLC38,675$1.72M0.3%-75.8%0.047% 2/16/2026 Maven Securities LTD69,920$3.10M0.1%N/A0.086% 2/16/2026 Healthcare of Ontario Pension Plan Trust Fund234,244$10.40M0.0%+17.1%0.288% 2/16/2026 Barclays PLC57,104$2.53M0.0%+259.1%0.070% 2/16/2026 Bullseye Asset Management LLC26,711$1.19M0.6%N/A0.033% 2/13/2026 The Manufacturers Life Insurance Company 146,944$6.52M0.0%+241.8%0.180% 2/13/2026 Quinn Opportunity Partners LLC88,512$3.93M0.2%-45.6%0.109% 2/13/2026 Soros Fund Management LLC154,560$6.86M0.1%+48.2%0.190% 2/13/2026 Walleye Capital LLC9,463$420K0.0%-44.8%0.012% 2/13/2026 Stifel Financial Corp4,750$211K0.0%N/A0.006% 2/13/2026 Hudson Bay Capital Management LP101,552$4.51M0.0%+146.8%0.125% 2/13/2026 First Trust Advisors LP21,671$962K0.0%+3.5%0.027% 2/13/2026 Alyeska Investment Group L.P.1,286,086$57.08M0.2%+1.6%1.579% 2/13/2026 Charles Schwab Investment Management Inc.187,064$8.30M0.0%+111.5%0.230% 2/13/2026 Police & Firemen s Retirement System of New Jersey5,948$264K0.0%N/A0.007% 2/13/2026 State Street Corp576,385$25.58M0.0%+921.1%0.708% 2/13/2026 Caitong International Asset Management Co. Ltd1,737$77K0.2%N/A0.002% 2/13/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC13,000$577K0.0%N/A0.016% 2/13/2026 Wells Fargo & Company MN35,590$1.58M0.0%+912.8%0.044% 2/13/2026 Lord Abbett & CO. LLC659,669$29.28M0.1%+120.5%0.810% 2/12/2026 MetLife Investment Management LLC13,183$585K0.0%N/A0.016% 2/12/2026 Tocqueville Asset Management L.P.220,775$9.80M0.1%-4.3%0.271% 2/12/2026 Renaissance Technologies LLC195,099$8.66M0.0%N/A0.240% 2/12/2026 Federated Hermes Inc.200,000$8.88M0.0%-20.0%0.246% 2/12/2026 New York State Common Retirement Fund162,191$7.20M0.0%N/A0.199% 2/12/2026 Swiss National Bank31,800$1.41M0.0%N/A0.039% 2/12/2026 Monashee Investment Management LLC175,000$7.77M4.4%+16.7%0.215% 2/12/2026 Nuveen LLC39,115$1.74M0.0%N/A0.048% 2/11/2026 Deutsche Bank AG16,243$721K0.0%N/A0.020% 2/11/2026 Caldwell Investment Management Ltd.738,810$33.73M20.6%+11.3%0.907% Before you buy SpaceX shares, consider this alternative approach (Ad)SpaceX has confidentially filed for an IPO with the SEC, targeting a June 2026 listing at a valuation exceeding $1.75 trillion - potentially the largest IPO in history. But one expert says buying shares directly may not be the smartest move. There is a lesser-known way to tap into this windfall that most investors haven't considered.Discover the overlooked SpaceX IPO strategy before the June listing2/11/2026 Axiom Investors LLC DE243,174$10.79M0.1%N/A0.299% 2/11/2026 Horizon Kinetics Asset Management LLC1,819,798$80.76M1.1%+31.6%2.235% 2/11/2026 Franklin Resources Inc.427,154$18.96M0.0%-1.2%0.525% 2/11/2026 JPMorgan Chase & Co.814,340$36.14M0.0%+0.3%1.000% 2/11/2026 State of Wyoming594$26K0.0%N/A0.001% 2/10/2026 TD Asset Management Inc80,508$3.57M0.0%+26.9%0.099% 2/10/2026 Goldman Sachs Group Inc.580,665$25.77M0.0%+200.6%0.713% 2/10/2026 BNP Paribas Financial Markets191,020$8.48M0.0%N/A0.235% 2/10/2026 Norges Bank277,200$12.30M0.0%N/A0.340% 2/10/2026 Moors & Cabot Inc.12,840$570K0.0%-13.5%0.016% MIAX Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of MIAX shares? During the previous two years, 133 institutional investors and hedge funds held shares of Miami International. The most heavily invested institutionals were T. Rowe Price Investment Management Inc. ($134.28M), Vanguard Group Inc. ($85.58M), Horizon Kinetics Asset Management LLC ($80.76M), Alyeska Investment Group L.P. ($57.08M), Invesco Ltd. ($56.76M), Allspring Global Investments Holdings LLC ($43.79M), and North Reef Capital Management LP ($39.48M).Learn more on Miami International's institutional investors. Which institutional investors have been buying Miami International's stock? Of the 130 institutional investors that purchased Miami International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Vanguard Group Inc. ($1.93M), JPMorgan Chase & Co. ($1.63M), Alyeska Investment Group L.P. ($1.29M), Invesco Ltd. ($1.28M), North Reef Capital Management LP ($1.27M), Allspring Global Investments Holdings LLC ($1.11M), and Bank of America Corp DE ($789.66K). How much institutional buying is happening at Miami International? Institutional investors have bought a total of 23,701,448 shares in the last 24 months. This purchase volume represents approximately $995.37M in transactions. Which of Miami International's major shareholders have been selling company stock? Of the 15 institutional investors that sold Miami International's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($1.92M), Price T Rowe Associates Inc. MD ($268.30K), North Reef Capital Management LP ($250.73K), Royal Bank of Canada ($198.42K), Maltese Capital Management LLC ($121.33K), Schonfeld Strategic Advisors LLC ($117.71K), and Quinn Opportunity Partners LLC ($74.14K). How much institutional selling is happening at Miami International? Institutional investors have sold a total of 3,077,778 shares in the last 24 months. This volume of shares sold represents approximately $135.07M in transactions. 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