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Miami International (MIAX) Institutional Ownership

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$43.60 -0.30 (-0.69%)
Closing price 03:59 PM Eastern
Extended Trading
$43.54 -0.06 (-0.14%)
As of 07:34 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.
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Institutional Ownership Changes (13F Filings) for Miami International (NYSE:MIAX)

Number of
Institutional Buyers
(last 12 months)
140
Total
Institutional Inflows
(last 12 months)
$1.27B
Number of
Institutional Sellers
(last 12 months)
16
Total
Institutional Outflows
(last 12 months)
$135.30M
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MIAX Institutional Buying and Selling by Quarter

Miami International Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/14/2026Canada Pension Plan Investment Board44,500$1.65M0.0%N/A0.045%
8/14/2026Legal & General Group Plc19,530$726K0.0%N/A0.020%
8/14/2026The Manufacturers Life Insurance Company 177,273$6.59M0.0%N/A0.179%
8/14/2026Sone Capital Management LLC138,903$5.16M0.4%N/A0.140%
8/14/2026 Algert Global LLC13,150$489K0.0%N/A0.013%
8/12/2026 Northwestern Mutual Wealth Management Co.151,179$5.62M0.0%N/A0.152%
8/11/2026 Caldwell Investment Management Ltd.600,000$22.28M14.6%N/A0.632%
8/10/2026 Tocqueville Asset Management L.P.338,225$12.57M0.2%N/A0.356%
8/10/2026 one8zero8 LLC27,965$1.04M0.2%N/A0.029%
8/7/2026 BlackRock Inc.5,071,754$188.47M0.0%N/A5.344%
8/7/2026 Deutsche Bank AG75,052$2.79M0.0%N/A0.079%
8/6/2026 Bank of New York Mellon Corp220,387$8.19M0.0%N/A0.232%
8/6/2026 Focus Partners Advisor Solutions LLC136,736$5.08M0.0%N/A0.144%
8/6/2026 State of Wyoming9,313$346K0.0%N/A0.010%
7/10/2026 Handelsbanken Fonder AB20,000$743K0.0%N/A0.021%
7/9/2026 Sapient Capital LLC26,612$989K0.0%N/A0.028%
7/9/2026 Atlas Brown Inc.44,906$1.67M0.4%-11.9%0.047%
7/8/2026 Assenagon Asset Management S.A.297,832$11.07M0.0%N/A0.314%
6/3/2026 NewEdge Advisors LLC39,025$1.52M0.0%N/A0.041%
5/19/2026Bank of America Corp DE900,882$35.06M0.0%+196.5%0.949%
5/18/2026Royal Bank of Canada10,301$401K0.0%+553.2%0.011%
5/16/2026The Manufacturers Life Insurance Company163,981$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%
5/15/2026North 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%
5/14/2026Sei 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%
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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%
2/19/2026T. Rowe Price Investment Management Inc.3,025,712$134.28M0.1%+24.5%3.716%
2/19/2026Invesco 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%
2/18/2026Coastal Bridge Advisors LLC77,415$3.44M0.3%+1.1%0.095%
2/18/2026XTX Topco Ltd38,390$1.70M0.0%N/A0.047%
2/18/2026 one8zero8 LLC58,415$2.59M0.6%N/A0.072%
2/18/2026VARCOV Co.22,389$994K0.4%N/A0.027%
2/18/2026Wellington Management Group LLP616,118$27.34M0.0%+5.7%0.757%
2/18/2026Symmetry Investments LP22,000$976K0.1%N/A0.027%
2/18/2026Tudor Investment Corp ET AL56,006$2.49M0.0%+23.0%0.069%
2/18/2026Prana Capital Management LP17,188$763K0.0%N/A0.021%
2/18/2026 Quadrature Capital Ltd31,915$1.42M0.0%N/A0.039%
2/18/2026Millennium Management LLC284,664$12.63M0.0%+79.6%0.350%
2/18/2026Janus Henderson Group PLC8,600$382K0.0%N/A0.011%
2/18/2026Element Capital Management LLC27,855$1.24M0.6%N/A0.034%
2/18/2026Armistice Capital LLC5,947$264K0.0%N/A0.007%
2/17/2026Schonfeld Strategic Advisors LLC100,000$4.44M0.0%-54.1%0.123%
2/17/2026Burkehill Global Management LP290,000$12.87M0.8%+93.3%0.356%
2/17/2026Sandia Investment Management LP13,000$577K1.4%+97.0%0.016%
2/17/2026Unisphere Establishment135,000$5.99M0.0%+35.0%0.166%
2/17/2026North 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%
2/17/2026Price T Rowe Associates Inc. MD130,486$5.79M0.0%-67.3%0.160%
2/17/2026T. Rowe Price Investment Management Inc.510,027$22.64M0.0%-79.0%0.626%
2/17/2026Osaic Holdings Inc.40,222$1.79M0.0%+22.8%0.049%
2/17/2026 Advisory Services Network LLC18,050$801K0.0%N/A0.022%
2/17/2026Ghisallo Capital Management LLC557,500$24.74M1.1%+102.7%0.685%
2/17/2026Adage Capital Partners GP L.L.C.881,329$39.11M0.1%+39.5%1.082%
2/17/2026California 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%
2/17/2026State of Wisconsin Investment Board42,556$1.89M0.0%N/A0.052%
2/17/2026Fred Alger Management LLC15,083$669K0.0%-38.4%0.019%
2/17/2026ExodusPoint Capital Management LP10,970$487K0.0%-62.9%0.013%
2/17/2026Royal 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%
2/17/2026Polar 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%
2/17/2026Maltese Capital Management LLC38,675$1.72M0.3%-75.8%0.047%
2/16/2026Maven 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%
2/16/2026Barclays PLC57,104$2.53M0.0%+259.1%0.070%
2/16/2026 Bullseye Asset Management LLC26,711$1.19M0.6%N/A0.033%
2/13/2026The Manufacturers Life Insurance Company 146,944$6.52M0.0%+241.8%0.180%
2/13/2026Quinn Opportunity Partners LLC88,512$3.93M0.2%-45.6%0.109%
2/13/2026Soros 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%
2/13/2026Hudson Bay Capital Management LP101,552$4.51M0.0%+146.8%0.125%
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2/13/2026 First Trust Advisors LP21,671$962K0.0%+3.5%0.027%
2/13/2026Alyeska Investment Group L.P.1,286,086$57.08M0.2%+1.6%1.579%
2/13/2026Charles 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%
2/13/2026Wells Fargo & Company MN35,590$1.58M0.0%+912.8%0.044%
2/13/2026Lord Abbett & CO. LLC659,669$29.28M0.1%+120.5%0.810%
2/12/2026MetLife Investment Management LLC13,183$585K0.0%N/A0.016%


MIAX Institutional Ownership - Frequently Asked Questions

During the previous two years, 142 institutional investors and hedge funds held shares of Miami International. The most heavily invested institutionals were BlackRock Inc. ($188.47M), 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), and Allspring Global Investments Holdings LLC ($43.79M).Learn more on Miami International's institutional investors.

Of the 139 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: BlackRock Inc. ($5.07M), Vanguard Group Inc. ($1.93M), JPMorgan Chase & Co. ($1.63M), Caldwell Investment Management Ltd. ($1.34M), Alyeska Investment Group L.P. ($1.29M), Invesco Ltd. ($1.28M), and North Reef Capital Management LP ($1.27M).

Institutional investors have bought a total of 31,064,384 shares in the last 24 months. This purchase volume represents approximately $1.27B in transactions.

Of the 16 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).

Institutional investors have sold a total of 3,083,846 shares in the last 24 months. This volume of shares sold represents approximately $135.30M in transactions.


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Institutional ownership data for NYSE:MIAX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/14/2026. New 13F filings are added each quarter as they're published.
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