MEMX will be closed Monday, June 19, 2023, in observance of Juneteenth National Independence Day. Normal trading will resume on Tuesday, June 20, 2023. MEMX Market Hours and Holiday Schedule Our Market Operations and Member Experience teams are here for any of your questions. MEMX Market Operations mops@memx.com 1-833-415-6677 MEMX Member Experience memberx@memx.com 1-833-415-6369
Author: Lauren Strathman
The following updates pertain to the MEMX Options exchange launch. Schedule Updates: 1. Pre-Production Environment : 2. MEMX Options Development Environment (MODE): 3. User Acceptance Tests: 4. Production Phased Launch: Specification Updates: Version 1.1 of MEMO FIX, MEMX FIX Drop, MEMO SBE, MEMO Risk Control, MEMOIR Common, MEMOIR TOP, MEMOIR Depth, Connectivity, and SBE Schema specifications […]
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April 2023
Rule 605 Disclosure of Order Execution Information
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March 2023
Rule 605 Disclosure of Order Execution Information
On February 8, 2023, MEMX published Regulatory Notice 23-01: Mandatory Participation in Regulation SCI Disaster Recovery Testing. In coordination with other market centers as part of SIFMA BCP testing, and in support of Regulation System Compliance and Integrity requirements, MEMX will host a test of its secondary/disaster recovery facilities on Saturday, October 14, 2023. The scope […]
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February 2023
Rule 605 Disclosure of Order Execution Information