MIAX Options & MIAX PEARL - Introducing New MIAX Member Firm Portal Functionality Today, October 23, 2017

MIAX is pleased to announce the introduction of new functionality to the MIAX Member Firm Portal (MFP).  
  • MFP will now permit MIAX Market Makers to manage their option class assignments for both MIAX Options and PEARL Exchanges.  
  • Option Class Assignments must be entered prior to 6:00 PM on the day immediately preceding the effective date. 
  • All changes made after 6:00 PM on a given day will be effective two trading days later.  
PEARL Market Makers may continue to manage PEARL symbol assignments via the MIAX Express Order (MEO) Interface prior to 9:00 AM of the current trading day.

Please note, MIAX Options Primary Lead Market Maker (PLMM) assignments and un-assignments will not be supported via MFP.   The MIAX Options Listings Department will continue to facilitate PLMM solicitation, assignment and un-assignment.

The MIAX MFP is an internet-facing portal which provides self-service functions to member firms.  Also available in MFP is the ability to correct same-side clearing details and perform trade queries.  Requests for price or size changes and trade adjustments or busts will continue to be submitted to MIAX Regulatory for approval and processing.  

The MIAX Member Firm Portal will be available at all times except during announced maintenance windows.

Individuals requesting Member Firm Portal access must be authorized to act on behalf of their organization.

For further information and to request access to the Member Firm Portal, please contact MIAX Trading Operations at or (609) 897-7302.

Regulatory questions should be directed to the Regulatory Department at (609) 897-7309 or