Miami International Holdings Reports Trading Results for September 2025
Rhea-AI Summary
Miami International Holdings (NYSE: MIAX) reported September 2025 trading results for MIAX exchanges and MIAX Futures, highlighting multiple volume and market-share records. Key September milestones include a monthly ADV record of 10.8M contracts (+73.1% vs Sep 2024), a YTD ADV record of 9.0M contracts (+40.4% YTD), a monthly market share record of 17.6%, and a daily market share record of 20.0% on Sept 23, 2025. MIAX launched the MIAX Sapphire trading floor in Miami on Sept 12, 2025, enabling access to 100% of the multi-listed U.S. options market across MIAX exchanges. MIAX Futures posted a YTD ADV of 14,633 contracts (+14.1% YTD).
Positive
- Monthly ADV 10.8M contracts (+73.1% vs Sep 2024)
- YTD Options ADV 9.0M contracts (+40.4% YTD)
- Monthly options market share 17.6% (record)
- Daily market share 20.0% on Sept 23, 2025 (record)
- MIAX Futures YTD ADV 14,633 contracts (+14.1% YTD)
- Opened MIAX Sapphire trading floor on Sept 12, 2025
Negative
- MIAX Futures Sep ADV 5,973 contracts (-35.5% vs Sep 2024)
- MIAX Futures Sep vs Aug ADV declined -46.6%
- MIAX Pearl YTD market share down 37.1% vs 2024
News Market Reaction – MIAX
In the Oct 7 session, MIAX gained 1.62%, reflecting a mild positive market reaction.
Data tracked by StockTitan Argus on the day of publication.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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 to100% of the multi-listedU.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
- Daily market share record of
- 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 |
|
|
|
||||||||
|
Trading Days |
21 |
20 |
|
21 |
|
186 |
188 |
|
|
|
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 % |
|
|
||||||||
|
|
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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SOURCE MIAX