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Trader Alert 23-39: New Membership Fee Schedule

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 […]

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Product Notice 23-196: Additional Exchange Products Approved for Trading

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Trader Alert 23-18: Holiday Reminder – Closed June 19, 2023

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 

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Trader Alert 23-17: MEMX Options Exchange Schedule & Specification Updates  

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

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Trader Alert 23-16: Holiday Reminder – Closed May 29, 2023

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  

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Product Notice 23-67: Additional Exchange Products Approved for Trading

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Trader Alert 23-11: Holiday Reminder – Closed April 7, 2023

MEMX will be closed Friday, April 7, 2023, in observance of Good Friday. Normal trading will resume on Monday April 10, 2023. MEMX Market Hours and Holiday Schedule Please contact Market Operations with any questions. MEMX Market Operations mops@memx.com 1-833-415-6677  

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Product Notice 23-59 to 23-60: Additional Exchange Products Approved for Trading