U.S. Options

The following option class will begin trading on the MIAX Options Exchange, MIAX Pearl Options Exchange, MIAX Emerald Options Exchange and MIAX Sapphire Options Exchange on Wednesday, July 30, 2025:

• Accelerant Holdings (ARX)

Market Makers can use the Member Firm Portal (MFP) to manage their option class assignments.  All LMM and RMM Option Class Assignments must be entered prior to 6:00 PM ET on the business day immediately preceding the effective date.  All changes made after 6:00 PM ET on a given day will be effective two trading days later.

Please contact MIAX Listings with any questions at Listings@miaxglobal.com or (609) 897-7308.