MIAX Options® Alerts
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...
Listing Alert, Trading Alert, Regulatory Alert
MIAX Options
August 19, 2026 | 03:58 PM
MIAX Exchange Group - Options Markets - Corporate Action Alert: The Glimpse Group, Inc. (GGRP) Trading Symbol Change
The Glimpse Group, Inc. (GGRP) will change its name and trading symbol to Brightline Interactive, Inc. (BTLN) effective Thursday, August 20,...
Regulatory Alert, Trading Alert
MIAX Options
August 19, 2026 | 03:29 PM
MIAX Options Exchange - Amendment to Request for Response Messages to Remove Initiating Price for PRIME and cPRIME Auctions
On Friday, September 4, 2026, MIAX Options will remove the initiating price from Request for Response messages and will only...
Trading Alert, Regulatory Alert
MIAX Options
August 18, 2026 | 03:26 PM
MIAX Options - Change to the Implementation Date of the Administrative Information Subscriber Feed Update to Include Origin in Liquidity Seeking Event Notification Messages
The enhancement to the Administrative Information Subscriber (AIS) feed to include origin in liquidity seeking event notification messages implementation date...
Listing Alert
MIAX Options
August 18, 2026 | 01:55 PM
MIAX Exchange Group - Options Markets - Delisting of Liberty Broadband Corporation (LBRDK)
Liberty Broadband Corporation (LBRDK) will be delisted from the MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options Exchanges...