Rule 605 Disclosure of Order Execution Information
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Tuesday, December 19, 2023 1 additional underlier SPY Additional dates and details to follow 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
On Tuesday, December 12, 2023, MEMX released new versions of its MEMO FIX, MEMO SBE, and FIX Drop Specifications. Version 1.12 can be found here using the “upcoming version” link. Release dates for the MEMX Development Environment (MDE) and Production to follow. Updates are listed below and in the specification Errata included in the download: MEMO FIX v1.12 MEMO SBE v1.12 FIX […]
In connection with the upcoming launch of the Exchange’s Options platform on September 20, 2023, the Exchange has adopted membership fees applicable to Options Trading Members, as set forth below. Membership fees for new members of the Exchange are waived until January 1, 2024. The Exchange’s Membership Fee Schedule sets forth membership fees applicable to […]
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US Options
Instrument Directory
Click Here for the Instrument Directory Download Customers should use the Instrument Directory file at their own discretion. The Instrument Directory file is subject to change at any time prior to the trading session or during the trading session for corrections or intraday updates. MEMX makes no guarantee of accuracy that the Instrument Directory file […]
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
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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US Options User Manual
MEMX will be closed Monday, May 29, 2023, in observance of Memorial Day. Normal trading will resume on Tuesday, May 30, 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