MEMX Equities and MEMX Options will be closed Friday, March 29, 2024, in observance of Good Friday. Normal trading will resume on Monday, April 1, 2024. MEMX Market Hours and Holiday Schedule Please contact Market Operations with any questions. MEMX Market Operations | mops@memx.com | 1-833-415-6677
Category: Trader Alerts
The Securities Information Processors (“SIPs”) will conduct data center failover testing as well as Market-Wide Circuit Breaker (“MWCB”) breach level 1 and 2 on Saturday, April 6, 2024, the final test in MEMX’s 2023 testing year. In coordination with other market participants, MEMX will participate in the test and publish a test script: MEMX 2023 […]
On Friday, March 1, 2024, MEMX Options released a new version of its MEMO SBE and Risk Specifications. Version 1.7 can be found here using the “upcoming version” link. Release dates for the MEMX Options Development Environment (MODE) and Production to follow. Updates are listed below and in the specification Errata included in the download: MEMO SBE v1.7 Risk Control […]
As previously announced here, MEMX Options is updating its Instrument Directory file and making changes to the symbology required in the Firm and Risk Management User Portal tools. The changes are currently available in the MEMX Options Development Environment (MODE) and production release date is Monday, March 11, 2024. Updates are listed below: Instrument Directory Update: **NOTE: […]
Effective Friday, March 1, 2024, MEMX will be implementing the following changes to transaction fees, subject to filing with the SEC: Changes are reflected in bold text below. Transaction Fees Fee Code Description Fee/(Rebate) – Securities at or above $1.00 (“A”) Fee/(Rebate) – Securities below $1.00 (“B”) B, D or J Added displayed volume $(0.0015) […]
MEMX Options is updating its Instrument Directory file and making changes to the symbology required in the Firm and Risk Management User Portal tools. The changes are currently available in the MEMX Options Development Environment (MODE) and production release date to follow. Updates are listed below: Instrument Directory Update: User Portal Update: Our Market Operations […]
On Tuesday, February 27, 2024, MEMX Options plans on adding the following underliers: Underliers T-Z Thank you for supporting MEMX Options throughout the symbol roll out. Our Market Operations and Member Experience teams are here for any of your questions and MEMX Market Operations mops@memx.com 1-833-415-6677 MEMX Member Experience memberx@memx.com 1-833-415-6369
On Friday, February 23, 2024, MEMX Options plans on adding the following underliers: Underliers P-S Additional dates and details: 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 Wednesday, February 21, 2024, MEMX Options plans on adding the following underliers: Underliers M-O Additional dates and details: 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 Friday, February 16, 2024, MEMX Options plans on adding the following underliers: Underliers H-L 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