MIAX Options Trading Volume Rises 16.6% Year-to-Date Despite October Decline

MIAX options trading volume rose 16.6% year-on-year on an average daily basis over the first ten months of 2026, Miami International Holdings reported, even as October activity weakened.

The MIAX Exchange Group recorded year-to-date average daily volume (ADV) of 11.02 million contracts, compared with 9.45 million in the same period of 2025. Its year-to-date U.S. multi-list options market share reached a record 17.1%, up from 17% a year earlier.

In October, options ADV fell 13.5% year-on-year to 11.29 million contracts from 13.06 million, though volumes rose 5.4% from September. The group’s October options market share declined to 16.9% from 19.4% a year earlier, against an industry-wide ADV decline of 0.8%.

MIAX Pearl recorded October equities ADV of 106 million shares, down 51.4% year-on-year from 218 million shares.

Agricultural futures ADV increased 28.1% to 9,333 contracts from 7,286 contracts in October 2025. Financial futures ADV reached 4,833 contracts, a 117.1% increase from September’s 2,226 contracts. MIAX launched financial futures trading in May 2026, expanding its derivatives offering beyond agricultural contracts.

Despite October’s agricultural futures growth, year-to-date ADV for the segment declined 17% to 11,483 contracts from 13,828 a year earlier.