Miami International Holdings Reports Trading Results for September 2025

Core Insights - Miami International Holdings, Inc. (MIAX) reported significant trading results for September 2025, highlighting its position as a technology-driven leader in regulated financial markets across multiple asset classes [1][5]. Trading Volume and Market Share - The MIAX Exchange Group achieved a monthly average daily volume (ADV) record of 10.8 million contracts in September 2025, representing a 73.1% increase compared to September 2024 [5]. - Year-to-date (YTD) ADV reached 9.0 million contracts, a 40.4% increase from the same period in 2024 [5]. - The U.S. options industry saw an ADV of 61,299 contracts in September 2025, a 39.5% increase from September 2024 [4]. - MIAX Futures recorded a YTD ADV of 14,633 contracts, marking a 14.1% increase from the previous year [5]. Market Share Records - MIAX set a daily market share record of 20.0% on September 23, 2025, and a monthly market share record of 17.6% for September 2025 [5]. - The YTD market share record stood at 16.7% [5]. New Developments - MIAX launched the MIAX Sapphire options trading floor on September 12, 2025, enhancing access to the multi-listed U.S. options market for its participants [5].