Miami International Holdings, Inc., a technology-driven leader in building and operating regulated financial markets across multiple asset classes, 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™.
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.
Source: MIAX
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