MIAX Insider Trading

Insider Ownership Percentage: N/A
Insider Buying (Last 12 Months): $1,556,953.98
Insider Selling (Last 12 Months): $8,339,812.68

Miami International Insider Trading History Chart

This chart shows the insider buying and selling history at Miami International by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Miami International Share Price & Price History

Current Price: $39.17
Price Change: Price Increase of +0.152 (0.39%)
As of 03/20/2026 04:59 PM ET

This chart shows the closing price history over time for MIAX up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Miami International Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/19/2026Kurt M EckertDirectorSell37,917$39.00$1,478,763.00142,375View SEC Filing Icon  
3/17/2026Douglas M. Schafer, Jr.EVPSell48,000$39.74$1,907,520.00396,681View SEC Filing Icon  
3/4/2026Murray StahlDirectorBuy7,200$43.38$312,336.004,633,842View SEC Filing Icon  
3/2/2026Murray StahlDirectorSell121,054$40.92$4,953,529.684,689,466View SEC Filing Icon  
10/3/2025Murray StahlDirectorBuy2$41.97$83.944,557,925View SEC Filing Icon  
9/26/2025Murray StahlDirectorBuy4$41.76$167.044,557,923View SEC Filing Icon  
8/28/2025Murray StahlDirectorBuy34,470$36.10$1,244,367.004,557,919View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Miami International (NYSE:MIAX)

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at MIAX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Miami International Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/3/2026Caitong International Asset Management Co. Ltd1,481$66K0.0%N/A0.002%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.3,025,712$134.28M0.1%+24.5%3.716%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.1,278,966$56.76M0.0%+178.8%1.571%Search for SEC Filing on Google Icon
2/18/2026Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%Search for SEC Filing on Google Icon
2/18/2026Coastal Bridge Advisors LLC77,415$3.44M0.3%+1.1%0.095%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd38,390$1.70M0.0%N/A0.047%Search for SEC Filing on Google Icon
2/18/2026one8zero8 LLC58,415$2.59M0.6%N/A0.072%Search for SEC Filing on Google Icon
2/18/2026VARCOV Co.22,389$0.99M0.4%N/A0.027%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP616,118$27.34M0.0%+5.7%0.757%Search for SEC Filing on Google Icon
2/18/2026Symmetry Investments LP22,000$0.98M0.1%N/A0.027%Search for SEC Filing on Google Icon
2/18/2026Tudor Investment Corp ET AL56,006$2.49M0.0%+23.0%0.069%Search for SEC Filing on Google Icon
2/18/2026Prana Capital Management LP17,188$0.76M0.0%N/A0.021%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd31,915$1.42M0.0%N/A0.039%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC284,664$12.63M0.0%+79.6%0.350%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC8,600$0.38M0.0%N/A0.011%Search for SEC Filing on Google Icon
2/18/2026Element Capital Management LLC27,855$1.24M0.6%N/A0.034%Search for SEC Filing on Google Icon
2/18/2026Armistice Capital LLC5,947$0.26M0.0%N/A0.007%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC100,000$4.44M0.0%-54.1%0.123%Search for SEC Filing on Google Icon
2/17/2026Burkehill Global Management LP290,000$12.87M0.8%+93.3%0.356%Search for SEC Filing on Google Icon
2/17/2026Sandia Investment Management LP13,000$0.58M1.4%+97.0%0.016%Search for SEC Filing on Google Icon
2/17/2026Unisphere Establishment135,000$5.99M0.0%+35.0%0.166%Search for SEC Filing on Google Icon
2/17/2026North Reef Capital Management LP1,265,000$56.14M2.3%+74.3%1.553%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC285,266$12.66M0.2%+1,404.1%0.350%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD130,486$5.79M0.0%-67.3%0.160%Search for SEC Filing on Google Icon
2/17/2026T. Rowe Price Investment Management Inc.510,027$22.64M0.0%-79.0%0.626%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.40,222$1.79M0.0%+22.8%0.049%Search for SEC Filing on Google Icon
2/17/2026Advisory Services Network LLC18,050$0.80M0.0%N/A0.022%Search for SEC Filing on Google Icon
2/17/2026Ghisallo Capital Management LLC557,500$24.74M1.1%+102.7%0.685%Search for SEC Filing on Google Icon
2/17/2026Adage Capital Partners GP L.L.C.881,329$39.11M0.1%+39.5%1.082%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System16,030$0.71M0.0%N/A0.020%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.76,351$3.39M0.0%N/A0.094%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board42,556$1.89M0.0%N/A0.052%Search for SEC Filing on Google Icon
2/17/2026Fred Alger Management LLC15,083$0.67M0.0%-38.4%0.019%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP10,970$0.49M0.0%-62.9%0.013%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada1,577$69K0.0%-99.2%0.002%Search for SEC Filing on Google Icon
2/17/2026Blair William & Co. IL654,845$29.06M0.1%+80.0%0.804%Search for SEC Filing on Google Icon
2/17/2026Polar Capital Holdings Plc123,992$5.50M0.0%N/A0.152%Search for SEC Filing on Google Icon
2/17/2026Delta Global Management LP279,029$12.38M0.6%+452.6%0.343%Search for SEC Filing on Google Icon
2/17/2026Maltese Capital Management LLC38,675$1.72M0.3%-75.8%0.047%Search for SEC Filing on Google Icon
2/16/2026Maven Securities LTD69,920$3.10M0.1%N/A0.086%Search for SEC Filing on Google Icon
2/16/2026Healthcare of Ontario Pension Plan Trust Fund234,244$10.40M0.0%+17.1%0.288%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC57,104$2.53M0.0%+259.1%0.070%Search for SEC Filing on Google Icon
2/16/2026Bullseye Asset Management LLC26,711$1.19M0.6%N/A0.033%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 146,944$6.52M0.0%+241.8%0.180%Search for SEC Filing on Google Icon
2/13/2026Quinn Opportunity Partners LLC88,512$3.93M0.2%-45.6%0.109%Search for SEC Filing on Google Icon
2/13/2026Soros Fund Management LLC154,560$6.86M0.1%+48.2%0.190%Search for SEC Filing on Google Icon
2/13/2026Walleye Capital LLC9,463$0.42M0.0%-44.8%0.012%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp4,750$0.21M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/13/2026Hudson Bay Capital Management LP101,552$4.51M0.0%+146.8%0.125%Search for SEC Filing on Google Icon
2/13/2026First Trust Advisors LP21,671$0.96M0.0%+3.5%0.027%Search for SEC Filing on Google Icon
2/13/2026Alyeska Investment Group L.P.1,286,086$57.08M0.2%+1.6%1.579%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.187,064$8.30M0.0%+111.5%0.230%Search for SEC Filing on Google Icon
2/13/2026Police & Firemen s Retirement System of New Jersey5,948$0.26M0.0%N/A0.007%Search for SEC Filing on Google Icon
2/13/2026State Street Corp576,385$25.58M0.0%+921.1%0.708%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd1,737$77K0.2%N/A0.002%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC13,000$0.58M0.0%N/A0.016%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN35,590$1.58M0.0%+912.8%0.044%Search for SEC Filing on Google Icon
2/13/2026Lord Abbett & CO. LLC659,669$29.28M0.1%+120.5%0.810%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC13,183$0.59M0.0%N/A0.016%Search for SEC Filing on Google Icon
2/12/2026Tocqueville Asset Management L.P.220,775$9.80M0.1%-4.3%0.271%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC195,099$8.66M0.0%N/A0.240%Search for SEC Filing on Google Icon
2/12/2026Federated Hermes Inc.200,000$8.88M0.0%-20.0%0.246%Search for SEC Filing on Google Icon
2/12/2026New York State Common Retirement Fund162,191$7.20M0.0%N/A0.199%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank31,800$1.41M0.0%N/A0.039%Search for SEC Filing on Google Icon
2/12/2026Monashee Investment Management LLC175,000$7.77M4.4%+16.7%0.215%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC39,115$1.74M0.0%N/A0.048%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG16,243$0.72M0.0%N/A0.020%Search for SEC Filing on Google Icon
2/11/2026Caldwell Investment Management Ltd.738,810$33.73M20.6%+11.3%0.907%Search for SEC Filing on Google Icon
2/11/2026Axiom Investors LLC DE243,174$10.79M0.1%N/A0.299%Search for SEC Filing on Google Icon
2/11/2026Horizon Kinetics Asset Management LLC1,819,798$80.76M1.1%+31.6%2.235%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.427,154$18.96M0.0%-1.2%0.525%Search for SEC Filing on Google Icon
2/11/2026JPMorgan Chase & Co.814,340$36.14M0.0%+0.3%1.000%Search for SEC Filing on Google Icon
2/11/2026State of Wyoming594$26K0.0%N/A0.001%Search for SEC Filing on Google Icon
2/10/2026TD Asset Management Inc80,508$3.57M0.0%+26.9%0.099%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.580,665$25.77M0.0%+200.6%0.713%Search for SEC Filing on Google Icon
2/10/2026BNP Paribas Financial Markets191,020$8.48M0.0%N/A0.235%Search for SEC Filing on Google Icon
2/10/2026Norges Bank277,200$12.30M0.0%N/A0.340%Search for SEC Filing on Google Icon
2/10/2026Moors & Cabot Inc.12,840$0.57M0.0%-13.5%0.016%Search for SEC Filing on Google Icon
2/10/2026Seven Grand Managers LLC400,000$17.75M1.4%+33.3%0.491%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC512,797$22.76M0.0%+221.7%0.630%Search for SEC Filing on Google Icon
2/9/2026King Luther Capital Management Corp103,819$4.61M0.0%N/A0.127%Search for SEC Filing on Google Icon
2/9/2026Penn Capital Management Company LLC252,125$11.22M0.9%N/A0.310%Search for SEC Filing on Google Icon
2/9/2026Royce & Associates LP181,466$8.05M0.1%N/A0.223%Search for SEC Filing on Google Icon
2/6/2026Mad River Investors75,050$3.33M1.5%+0.6%0.092%Search for SEC Filing on Google Icon
2/6/2026GSA Capital Partners LLP19,739$0.88M0.1%N/A0.024%Search for SEC Filing on Google Icon
2/6/2026HighTower Advisors LLC6,172$0.27M0.0%+19.3%0.008%Search for SEC Filing on Google Icon
2/4/2026VIRGINIA RETIREMENT SYSTEMS ET Al11,100$0.49M0.0%N/A0.014%Search for SEC Filing on Google Icon
2/2/2026Strs Ohio4,200$0.19M0.0%N/A0.005%Search for SEC Filing on Google Icon
1/30/2026Pekin Hardy Strauss Inc.36,290$1.61M0.1%+41.5%0.045%Search for SEC Filing on Google Icon
1/29/2026Comerica Bank1,254$56K0.0%+295.6%0.002%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG162,884$7.23M0.0%+1,944.5%0.200%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.1,928,286$85.58M0.0%+39.5%2.368%Search for SEC Filing on Google Icon
1/29/2026Calamos Advisors LLC41,364$1.84M0.0%N/A0.051%Search for SEC Filing on Google Icon
1/28/2026Arizona State Retirement System4,536$0.20M0.0%N/A0.006%Search for SEC Filing on Google Icon
1/27/2026Round Rock Advisors LLC6,988$0.31M0.0%N/A0.009%Search for SEC Filing on Google Icon
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank 12,500$0.56M0.0%N/A0.015%Search for SEC Filing on Google Icon
1/26/2026Capelight Capital Asset Management LP63,000$2.80M2.3%N/A0.077%Search for SEC Filing on Google Icon
1/26/2026Atlas Wealth Partners LLC24,474$1.09M1.2%+11.8%0.030%Search for SEC Filing on Google Icon
1/22/2026Massachusetts Financial Services Co. MA273,908$12.16M0.0%-8.0%0.336%Search for SEC Filing on Google Icon
1/15/2026Allspring Global Investments Holdings LLC932,053$40.68M0.1%+105.4%1.145%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Miami International logo
We are a technology-driven leader in building and operating regulated financial marketplaces across multiple asset classes and geographies. Our MIAX Exchanges, MIAX Futures and BSX marketplaces are enabled by our in-house built, proprietary technology. We believe the speed and performance of our proprietary technology coupled with our fully integrated, award-winning customer service, sets us apart from our competitors. Our MIAX Exchange trading platform was originally built to meet the high-performance quoting demands of the U.S. options trading industry. We are regarded as a market leader relative to many of our peers with respect to our technology, based on feedback from our customers. We differentiate our trading platform with our throughput, latency, reliability and wire-order determinism. We maintain a broad portfolio of U.S. exchange and clearing licenses, in both securities and futures. We operate markets across a diverse number of asset classes including options and cash equities as well as futures and options on futures. Our markets currently include: options on our exchanges regulated by the Securities and Exchange Commission (the “SEC”) through MIAX Options®, MIAX Pearl®, MIAX Emerald®, and MIAX Sapphire™; U.S. equities through MIAX Pearl Equities — also regulated by the SEC; U.S. futures and options on futures through MIAX Futures Exchange, LLC (“MIAX Futures,” formerly the Minneapolis Grain Exchange, LLC (“MGEX”)), which is regulated by the Commodity Futures Trading Commission (the “CFTC”); and international listings through The Bermuda Stock Exchange (“BSX”), which is regulated by the Bermuda Monetary Authority (the “BMA”), and The International Stock Exchange Group Limited (“TISEG”), which via its subsidiary, The International Stock Exchange Authority Limited (“TISEA”), is regulated by the Guernsey Financial Services Commission (“GFSC”). We also own Dorman Trading, LLC (“Dorman Trading”), a full-service Futures Commission Merchant (“FCM”) registered with the CFTC and the National Futures Association (“NFA”) and LedgerX LLC d/b/a MIAX Derivatives Exchange (“MIAXdx”), which is regulated by the CFTC, where we have the ability to list for trading fully collateralized U.S. futures, options on futures and swaps. We entered into a master index services license agreement in July 2024 (the “Bloomberg License Agreement”) with Bloomberg Index Services Limited (“Bloomberg”) to develop a suite of proprietary products, including index futures, options on futures, and cash index options, based on Bloomberg’s portfolio of indexes as agreed to by the parties from time to time (the “Bloomberg Products”). Pursuant to a service schedule product license entered into in July 2024 (the “Service Schedule”) under the Bloomberg License Agreement, we have a ten year exclusive license to list futures, options on futures, and cash-settled index options on (i) the Bloomberg 500 Index (the “B500 Index”) and (ii) the Bloomberg US Large Cap Volatility Index (the “B500 Volatility Index”). We have the right to list these proprietary products on any of our affiliated U.S. exchanges in North and South America. The ten-year term under the Service Schedule does not expire until the tenth anniversary of the date the first product is listed. The Service Schedule also provides for automatic three-year renewal terms, provided certain minimum revenue thresholds are met. The first Bloomberg Products we plan to exclusively list are futures and cash-settled index options on the B500 Index. We expect to launch futures on the B500 Index in the fourth quarter of 2025 or in the first quarter of 2026 on MIAX Futures, cash-settled index options on the B500 Index in the first half of 2026 on MIAX Options, and options on futures on the B500 Index on MIAX Futures targeted for the second half of 2026, subject to certain regulatory filings. We plan to have the Bloomberg Products cleared at The Options Clearing Corporation (“OCC”), also subject to certain regulatory filings. We currently list Hard Red Spring Wheat futures and options on futures contracts on MIAX Futures. We offer clearing services for U.S. futures and options on futures through the MIAX Futures derivatives clearing organization license (“MIAX Futures Clearing”), and may offer clearing for fully collateralized futures, options on futures and swaps through the MIAXdx derivatives clearing organization license (“MIAXdx Clearing”). In addition to the Bloomberg Products, we are developing other new products for our markets and plan to expand our suite of proprietary and other products on MIAX Futures and MIAXdx, and may enter into additional clearing as a service agreements with other futures markets. New MIAX Futures products will be traded on our own MIAX Futures Onyx trading system (“MIAX Futures Onyx”), which we launched on June 29, 2025. Since launching our first options exchange in 2012, MIAX has grown to be the 14th largest global derivatives exchange operator as of June 30, 2025, as measured by the total number of futures and options contracts traded on exchanges as reported by the Futures Industry Association (the “FIA”). In 2024, trading in multi-listed U.S. options on our MIAX Exchanges totaled 1.69 billion contracts, a 6.5% increase from the 2023 total and a 30.1% increase from the 2022 total. Total volume of futures and options on futures on the MIAX Futures exchange reached 3.2 million contracts in 2024, an increase of 10.2% from the 2023 total and a 3.2% decrease from the 2022 total. For the six months ended June 30, 2025, trading in multi-listed U.S. options on our exchanges totaled 1.1 billion contracts, a 30.5% increase from the same period in 2024. Total volume of futures and options on futures on the MIAX Futures exchange was 2.2 million contracts for the six months ended June 30, 2025, an increase of 36.6% from the same period in 2024. MIAX has a strong track record of organic growth. By increasing scale and launching new marketplaces, we have been able to substantially grow our transaction volume. Our average daily volume in U.S. options on the MIAX Exchanges increased from 1.0 million contracts in 2015 to 6.7 million contracts in 2024, a compound annual growth rate of 23.5%. Our average daily volume in U.S. options on the MIAX Exchanges in 2024 was 6.7 million contracts, as compared to 6.3 million contracts in 2023 and 5.2 million contracts in 2022. For the six months ended June 30, 2025, our average daily volume in U.S. options on the MIAX Exchanges was 8.7 million contracts, as compared to 6.5 million contracts in the same period in 2024. Our revenue consists primarily of transaction fees, access fees, and market data fees related to transactions executed on our exchanges. Our principal executive offices are located in Princeton, New Jersey.
Read More on Miami International

Today's Range

Now: $39.17
Low: $38.45
High: $39.20

50 Day Range

MA: $41.34
Low: $38.11
High: $44.52

52 Week Range

Now: $39.17
Low: $28.63
High: $51.38

Volume

2,011,380 shs

Average Volume

1,541,181 shs

Market Capitalization

$3.59 billion

P/E Ratio

72.54

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Miami International?

Miami International's top insider shareholders include:
  1. Murray Stahl (Director)
  2. Douglas M Schafer Jr (EVP)
  3. Kurt M Eckert (Director)
Learn More about top insider investors at Miami International.

Who are the major institutional investors of Miami International?

Miami International's top institutional investors include:
  1. T. Rowe Price Investment Management Inc. — 3.72%
  2. Vanguard Group Inc. — 2.37%
  3. Horizon Kinetics Asset Management LLC — 2.23%
  4. Alyeska Investment Group L.P. — 1.58%
  5. Invesco Ltd. — 1.57%
  6. North Reef Capital Management LP — 1.55%
Learn More about top institutional investors of Miami International stock.

Which major investors are selling Miami International stock?

In the last quarter, MIAX stock was sold by these institutional investors:
  1. T. Rowe Price Investment Management Inc.
  2. Price T Rowe Associates Inc. MD
  3. Royal Bank of Canada
  4. Maltese Capital Management LLC
  5. Schonfeld Strategic Advisors LLC
  6. Quinn Opportunity Partners LLC
  7. Federated Hermes Inc.
  8. Simplex Trading LLC
During the previous year, company insiders that have sold Miami International company stock include:
  1. Murray Stahl (Director)
  2. Douglas M Schafer Jr (EVP)
  3. Kurt M Eckert (Director)
Learn More investors selling Miami International stock.

Which major investors are buying Miami International stock?

In the last quarter, MIAX stock was acquired by institutional investors including:
  1. Invesco Ltd.
  2. T. Rowe Price Investment Management Inc.
  3. Vanguard Group Inc.
  4. North Reef Capital Management LP
  5. State Street Corp
  6. Allspring Global Investments Holdings LLC
  7. Horizon Kinetics Asset Management LLC
  8. Goldman Sachs Group Inc.