MIAX Options® Alerts
Listing Alert
MIAX Options
August 21, 2026 | 09:25 AM
MIAX Exchange Group - Options Markets - Corporate Action Alert - IES Holdings, Inc. (IESC)
IES Holdings, Inc. (IESC) has announced a Stock Split. Associated strike price adjustments will become effective on Monday, August 24, 2026....
Listing Alert
MIAX Options
August 21, 2026 | 08:18 AM
MIAX Exchange Group - Options Markets - Series in Arrowhead Pharmaceuticals, Inc. (ARWR) Made Non-Tradeable
The following series in Arrowhead Pharmaceuticals, Inc. (ARWR) has been made non-tradeable on the MIAX Options Exchange, MIAX Pearl Options Exchange,...
Regulatory Alert, Trading Alert
MIAX Options
August 20, 2026 | 03:40 PM
MIAX Options Exchange - Update to New Selective Liquidity Auto Purge (SLAP) Functionality Implementation Date
The enhancement to the Mass Cancellation of Trading Interest, to adopt Selective Liquidity Auto Purge (“SLAP”) functionality previously scheduled for...
Trading Alert, Regulatory Alert
MIAX Options
August 20, 2026 | 03:40 PM
MIAX Options Exchange - Update to Aggregate Risk Manager Change to Adopt Origin Multiplier Implementation Date
The enhancement to the Aggregate Risk Manager (ARM), to adopt an Origin Multiplier for use when calculating the Allowable Engagement...
Regulatory Alert, Trading Alert
MIAX Options
August 20, 2026 | 02:02 PM
MIAX Exchange Group - Options Markets - Market for Underlying Security Used for Openings for Newly Listed Symbols Effective Friday, August 21, 2026
Please refer to the Regulatory Circulars listed below for the newly listed symbols and the corresponding market for the underlying...
Listing Alert
MIAX Options
August 20, 2026 | 01:43 PM
MIAX Exchange Group - Options Markets - New Listings Effective for August 21, 2026
The attached option classes will begin trading on the MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire...