MIAX reports higher October trading volumes as options market share reaches record YTD level
Miami International Holdings reports stronger trading activity across its U.S. exchange subsidiaries in October 2026, with year-to-date options volumes and market share both reaching record levels. The gains extend through October and point to continued momentum for the MIAX Exchange Group in the competitive U.S. multi-list options market.
Highlights
- MIAX Exchange Group reports record year-to-date average daily volume of 11.0 million contracts through October 2026, up 16.6% from 2025.
- Group sets year-to-date options market share record at 17.1% through October 2026, slightly above the 17.0% in the prior-year period.
- MIAX strengthens its competitive position in U.S. listed options as higher trading volumes and market share signal improving trading liquidity.
October trading records across MIAX venues
As reported by MIAX Global, citing MIAX Exchange, Miami International Holdings says the MIAX Exchange Group reaches a record year-to-date average daily volume of 11.0 million contracts through October 2026, up 16.6% from the same period in 2025.The company also says the group sets a year-to-date market share record of 17.1% through October 2026, compared with 17.0% in the prior-year period. The reported figures cover MIAX, MIAX Pearl, MIAX Emerald and MIAX Sapphire, alongside trading results released for MIAX Futures.
Implications for U.S. exchange competition
The latest results indicate MIAX continues to expand its position in the U.S. listed options sector, where market share gains are closely watched as a sign of trading liquidity and venue competitiveness.Miami International Holdings describes itself as a technology-driven operator of regulated financial markets across multiple asset classes. It says additional MIAX Exchange Group and MIAX Futures volume and market share data are included in the attached table.
In our earlier article on the S&P 500’s push toward the 8,000 level, we noted that investors were weighing strong third-quarter earnings expectations against headwinds such as higher oil prices, elevated Treasury yields, and political uncertainty. The update also highlighted growing concentration risk, with a narrow group of megacaps driving gains while broader market breadth weakened—conditions that can influence liquidity and trading dynamics across U.S. markets.
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