As described in the MIAX Pearl Options MIAX Express Order Interface Specification document, for each product and side, an MPID can have a maximum of five (5) Binary Auto-Replace orders with unique Client Order IDs that the Firm can keep replacing.
For more information please refer to the following Regulatory Circular:
Please direct questions to the Regulatory Department at Regulatory@miaxglobal.com or (609) 897-7309.