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    Miami International Holdings Reports Trading Results for September 2025

    PRINCETON, N.J. and MIAMI, Oct. 7, 2025 /PRNewswire/ — Miami International Holdings, Inc. (MIAX) (NYSE: MIAX), a technology-driven leader in building and operating regulated financial markets across multiple asset classes, today reported September 2025 trading results for its U.S. exchange subsidiaries — MIAX®, MIAX Pearl®, MIAX Emerald® and MIAX Sapphire® (collectively, the MIAX Exchange Group), and MIAX Futures™.

    MIAX Logo

    September 2025 and Year-to-Date Highlights

    • MIAX launched the MIAX Sapphire options trading floor in Miami on September 12, 2025, providing its market participants access to 100% of the multi-listed U.S. options market across the MIAX Exchange Group.
    • MIAX Exchange Group set a number of volume and market share records in September 2025 including:
      • Daily market share record of 20.0% on September 23, 2025
      • Monthly market share record of 17.6% in September 2025
      • Year-to-date (YTD) market share record of 16.7%
      • Monthly average daily volume (ADV) record of 10.8 million contracts, a 73.1% increase from September 2024
      • YTD ADV record of 9.0 million contracts, a 40.4% increase from the same period in 2024
    • MIAX Futures reached a record YTD ADV of 14,633 contracts through September 2025, a 14.1% increase from the same period in 2024.

    Additional MIAX Exchange Group and MIAX Futures trading volume and market share information is included in the table below.

    Average Daily Trading Volume (ADV) (1)

    Year-to-Date Comparison

    Sep-25

    Sep-24

    % Chg

    Aug-25

    % Chg

    Sep-25

    Sep-24

    % Chg

    U.S. Multi-list Options

    Trading Days

    21

    20

    21

    186

    188

    U.S. Equity Options Industry ADV (000’s)

    61,299

    43,955

    39.5 %

    54,909

    11.6 %

    53,989

    43,279

    24.7 %

    MIAX Exchange Group Options ADV (000’s)

    10,787

    6,230

    73.1 %

    9,525

    13.2 %

    9,002

    6,412

    40.4 %

    MIAX Exchange Group Options Market Share

    17.6 %

    14.2 %

    24.2 %

    17.3 %

    1.4 %

    16.7 %

    14.8 %

    12.5 %

    U.S. Equities

    U.S. Equities Industry ADV (Millions)

    18,309

    11,858

    54.4 %

    16,379

    11.8 %

    17,195

    11,675

    47.3 %

    MIAX Pearl ADV (Millions)

    205

    203

    0.9 %

    169

    20.9 %

    187

    201

    -7.4 %

    MIAX Pearl Market Share

    1.1 %

    1.7 %

    -34.7 %

    1.0 %

    8.2 %

    1.1 %

    1.7 %

    -37.1 %

    MIAX Futures Exchange 

    Trading Days

    21

    20

    21

    187

    188

    MIAX Futures ADV

    5,973

    9,260

    -35.5 %

    11,190

    -46.6 %

    14,633

    12,828

    14.1 %

    1) Calculated as total volume for the period divided by total trading days for the period.

    About MIAX
    Miami International Holdings, Inc. (NYSE: MIAX) is a technology-driven leader in building and operating regulated financial markets across multiple asset classes and geographies. MIAX® operates nine exchanges across options, futures, equities and international markets including MIAX Options, MIAX Pearl®, MIAX Emerald®, MIAX Sapphire®, MIAX Pearl Equities™, MIAX Futures™, MIAXdx™, The Bermuda Stock Exchange (BSX) and The International Stock Exchange (TISE). MIAX also owns Dorman Trading, a full-service Futures Commission Merchant. To learn more about MIAX please visit www.miaxglobal.com.

    Disclaimer and Cautionary Note Regarding Forward-Looking Statements
    This press release may contain forward-looking statements, including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements describe future expectations, plans, results, or strategies and are generally preceded by words such as “may,” “future,” “plan” or “planned,” “will” or “should,” “expected,” “anticipates,” “draft,” “eventually” or “projected.” You are cautioned that such statements are based on management’s current expectations and are subject to a multitude of risks and uncertainties that could cause future circumstances, events, or results to differ materially from those projected in the forward-looking statements, including the risks that actual results may differ materially from those projected in the forward-looking statements. Additional risks and uncertainties that may cause actual results to differ materially include the risks and uncertainties listed in Miami International Holdings, Inc.’s (together with its subsidiaries, the Company) public filings with the Securities and Exchange Commission. In providing forward-looking statements, the Company is not undertaking any duty or obligation to update these statements publicly as a result of new information, future events or otherwise.

    All third-party trademarks (including logos and icons) referenced by the Company remain the property of their respective owners. Unless specifically identified as such, the Company’s use of third-party trademarks does not indicate any relationship, sponsorship, or endorsement between the owners of these trademarks and the Company. Any references by the Company to third-party trademarks is to identify the corresponding third-party goods and/or services and shall be considered nominative fair use under the trademark law.

    Media Contact:
    Andy Nybo, SVP, Chief Communications Officer
    anybo@miaxglobal.com

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