MIAX Insider Trading

Insider Ownership Percentage: N/A
Insider Buying (Last 12 Months): $1,244,617.98
Insider Selling (Last 12 Months): $0.00

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: $45.51
Price Change: Price Increase of +0.777 (1.74%)
As of 12/4/2025 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
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  
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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
11/17/2025Woodline Partners LP261,111$10.51M0.0%N/A0.321%Search for SEC Filing on Google Icon
11/17/2025Zimmer Partners LP15,000$0.60M0.0%N/A0.018%Search for SEC Filing on Google Icon
11/17/2025Alyeska Investment Group L.P.1,265,736$50.96M0.2%N/A1.554%Search for SEC Filing on Google Icon
11/17/2025Unisphere Establishment100,000$4.03M0.0%N/A0.123%Search for SEC Filing on Google Icon
11/17/2025SALT Holding Corp.15,173$0.61M0.6%N/A0.019%Search for SEC Filing on Google Icon
11/17/2025Quantessence Capital LLC8,507$0.34M0.1%N/A0.010%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd28,122$1.13M0.0%N/A0.035%Search for SEC Filing on Google Icon
11/17/2025North Reef Capital Management LP725,804$29.22M1.4%N/A0.891%Search for SEC Filing on Google Icon
11/17/2025Maltese Capital Management LLC160,000$6.44M1.0%N/A0.196%Search for SEC Filing on Google Icon
11/17/2025Moors & Cabot Inc.14,850$0.60M0.0%N/A0.018%Search for SEC Filing on Google Icon
11/17/2025National Bank of Canada FI700$29K0.0%N/A0.001%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC158,482$6.38M0.0%N/A0.195%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC153,815$6.19M0.0%N/A0.189%Search for SEC Filing on Google Icon
11/17/2025Harvey Partners LLC50,000$2.01M0.2%N/A0.061%Search for SEC Filing on Google Icon
11/17/2025Hound Partners LLC25,000$1.01M0.1%N/A0.031%Search for SEC Filing on Google Icon
11/17/2025Fred Alger Management LLC24,483$0.99M0.0%N/A0.030%Search for SEC Filing on Google Icon
11/17/2025Delta Global Management LP50,498$2.03M0.1%N/A0.062%Search for SEC Filing on Google Icon
11/17/2025Centiva Capital LP8,378$0.34M0.0%N/A0.010%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE192,641$7.76M0.0%N/A0.237%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.206,281$8.31M0.0%N/A0.253%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC217,714$8.77M0.0%N/A0.267%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.12,896$0.52M0.0%N/A0.016%Search for SEC Filing on Google Icon
11/14/2025Sandia Investment Management LP6,600$0.27M0.8%N/A0.008%Search for SEC Filing on Google Icon
11/14/2025Caisse de depot et placement du Quebec30,000$1.21M0.0%N/A0.037%Search for SEC Filing on Google Icon
11/14/2025Freestone Grove Partners LP125,000$5.03M0.0%N/A0.154%Search for SEC Filing on Google Icon
11/14/2025Burkehill Global Management LP150,000$6.04M0.3%N/A0.184%Search for SEC Filing on Google Icon
11/14/2025Man Group plc11,008$0.44M0.0%N/A0.014%Search for SEC Filing on Google Icon
11/14/2025Davidson Kempner Capital Management LP26,000$1.05M0.0%N/A0.032%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP50,011$2.01M0.0%N/A0.061%Search for SEC Filing on Google Icon
11/14/2025Ghisallo Capital Management LLC275,000$11.07M0.4%N/A0.338%Search for SEC Filing on Google Icon
11/14/2025Interval Partners LP44,357$1.79M0.0%N/A0.054%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC10,300$0.42M0.0%N/A0.013%Search for SEC Filing on Google Icon
11/14/2025Wellington Management Group LLP583,120$23.48M0.0%N/A0.716%Search for SEC Filing on Google Icon
11/14/2025Quinn Opportunity Partners LLC162,656$6.55M0.5%N/A0.200%Search for SEC Filing on Google Icon
11/13/2025Limestone Investment Advisors LP6,900$0.28M0.0%N/A0.008%Search for SEC Filing on Google Icon
11/13/2025Tocqueville Asset Management L.P.230,700$9.29M0.1%N/A0.283%Search for SEC Filing on Google Icon
11/13/2025Invesco Ltd.458,720$18.47M0.0%N/A0.563%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.101,191$4.07M0.0%N/A0.124%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.432,272$17.40M0.0%N/A0.531%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc7,500$0.30M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/13/2025Blair William & Co. IL363,765$14.65M0.0%N/A0.447%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP20,938$0.84M0.0%N/A0.026%Search for SEC Filing on Google Icon
11/12/2025Victory Capital Management Inc.302,247$12.17M0.0%N/A0.371%Search for SEC Filing on Google Icon
11/12/2025Monashee Investment Management LLC150,000$6.04M3.0%N/A0.184%Search for SEC Filing on Google Icon
11/10/2025TD Asset Management Inc63,460$2.56M0.0%N/A0.080%Search for SEC Filing on Google Icon
11/10/2025Pekin Hardy Strauss Inc.25,650$1.03M0.1%N/A0.032%Search for SEC Filing on Google Icon
11/7/2025Readystate Asset Management LP12,500$0.50M0.0%N/A0.016%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.1,382,516$55.66M0.0%N/A1.740%Search for SEC Filing on Google Icon
11/7/2025Texas Yale Capital Corp.5,000$0.20M0.0%N/A0.006%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.811,711$32.68M0.0%N/A1.022%Search for SEC Filing on Google Icon
11/6/2025Caprock Group LLC10,000$0.38M0.0%N/A0.013%Search for SEC Filing on Google Icon
11/3/2025Coastal Bridge Advisors LLC76,565$3.08M0.2%N/A0.096%Search for SEC Filing on Google Icon
11/3/2025Federated Hermes Inc.250,000$10.07M0.0%N/A0.315%Search for SEC Filing on Google Icon
10/31/2025Atlas Wealth Partners LLC21,889$0.88M0.9%N/A0.028%Search for SEC Filing on Google Icon
10/30/2025Emerald Mutual Fund Advisers Trust2,500$0.10M0.0%N/A0.003%Search for SEC Filing on Google Icon
10/27/2025Caldwell Investment Management Ltd.663,810$27.06M17.8%N/A0.836%Search for SEC Filing on Google Icon
10/20/2025Allspring Global Investments Holdings LLC453,668$17.68M0.0%N/A0.571%Search for SEC Filing on Google Icon
Data available starting January 2016

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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: $45.51
Low: $44.69
High: $46.02

50 Day Range

MA: $44.35
Low: $39.01
High: $50.95

52 Week Range

Now: $45.51
Low: $28.63
High: $51.38

Volume

436,448 shs

Average Volume

515,054 shs

Market Capitalization

$3.71 billion

P/E Ratio

N/A

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)
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. Vanguard Group Inc. — 1.74%
  2. Alyeska Investment Group L.P. — 1.55%
  3. JPMorgan Chase & Co. — 1.02%
  4. North Reef Capital Management LP — 0.89%
  5. Caldwell Investment Management Ltd. — 0.84%
  6. Wellington Management Group LLP — 0.72%
Learn More about top institutional investors of Miami International stock.

Which major investors are buying Miami International stock?

During the last quarter, MIAX stock was acquired by institutional investors including:
  1. Vanguard Group Inc.
  2. Alyeska Investment Group L.P.
  3. JPMorgan Chase & Co.
  4. North Reef Capital Management LP
  5. Caldwell Investment Management Ltd.
  6. Wellington Management Group LLP
  7. Invesco Ltd.
  8. Allspring Global Investments Holdings LLC