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Trader Alerts

Trader Alert 20-12: Fee Schedule Updates Effective December 1, 2020

Effective Tuesday, December 1, 2020, MEMX will introduce the following pricing. Retail Orders that add Displayed Liquidity Effective December 1, 2020, MEMX will being offering an enhanced rebate of $0.0034 per share for displayed orders that provide liquidity and are designated as Retail Orders upon entry. The Retail Order Designation program is designed for Members […]

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Alerts and Notices Trader Alerts

Trader Alert 20-10: MEMX Trading Symbols Update

All NMS symbols will be active starting Thursday, October 29, 2020 See our Instrument Directory for the daily symbol list NMS routing is not currently enabled, MEMX will provide an update when we plan to enable it. ALL NMS test symbols are available. See the blog post on memx.com for the full update

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Trader Alerts

Trader Alert 20-09: MEMX Trading Symbols Update

Additional 493 Symbols on Wednesday, October 21, 2020 The remainder of the S&P 500 components, plus the 24 instruments below will be added to the existing symbols. ABEVACBAPHABBDCVECXITUBNGDNNDMQIDSPXUSWN SQQQKCACKCAC+KCAC=KKRKKR-AKKR-BKKR-CTDW+AVST+ANSPR+BTDW+B See our Instrument Directory for the Full List Here NOTES: NMS routing is not currently enabled, MEMX will provide an update when we plan to enable […]

US Equities Instrument Directory

Click Here for the Instrument Directory Download What is the mapping in the file? The securityId field is the positive integer value used in the MEMOIR feeds when market data updates are reported for the product. The symbol field is a string that contains the CMS Symbol Root for the product. The symbolSfx field is […]

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Alerts and Notices Trader Alerts

Trader Alert 20-06: MEMX Market Hours Change

As of Monday, October 5th the Post-Market session will end at 5PM ET.

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Alerts and Notices Product Notices

Product Notice 20-01 to 20-1350: MEMX Launch

Product Notice 2020-0001: Direxion Shares ETF Trust Download Product Notice 2020-0002: KFA Global Carbon ETF Download Product Notice 2020-0003: VanEck Vectors Energy Income ETF Download Product Notice 2020-0004: Krane Shares Trust Download Product Notice 2020-0005: KraneShares MSCI China ESG Leaders Index ETF Download Product Notice 2020-0006: ProShares Trust Download Product Notice 2020-0007: Proshares Trust II […]

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Membership, Connectivity, and Market Data Documents

Agreements, forms, and policies related to membership with, connecting to, and receiving market data from MEMX are provided below for reference and review. Participants interested in becoming a member of, connecting to, and/or receiving market data from MEMX should follow the on-boarding process available at: https://memxtrading.com/onboarding. Membership Connectivity Market Data

Exchange ID Codes

Type Code SIP Participant ID U MIC Code for Exchange MEMX MIC Code for Exchange – Dark MEMD OATS Exchange Destination Code XU OATS Market Center ID U CAT Reporter ID/CAT Participant ID/Exchange ID MEMX CAT Market Center ID U Blue Sheet Exchange Code 4 Blue Sheet Requestor Code 4 UTC Market Code 195 Bloomberg […]