Monday, February 12, 2024

Equity Technical Update #2024 - 1
New fields on Drop to FIX – CORE Protocol


  • New Functionality

Markets Impacted:

Contact Information:


On or around March 11th, new fields will be added to the Drop to FIX – CORE protocol for Nasdaq, Nasdaq BX, and Nasdaq PSX on an exchange-by-exchange basis.

The following tags will be added to the Drop to FIX - CORE protocol:

Tag Field Name Req'd
20007 OrigUserRefNum N
9355 CrossType N
110 MinQty N
211 PegOffset N
20009 DiscretionPrice N
388 DiscretionPriceType N
389 DiscretionPegOffset N
8020 RandomReserves N
126 ExpireTime N
20003 HandleInst N
20008 GroupID N

Please refer to the Specifications Page for more information.

Testing Opportunities

Testing is currently available in the Nasdaq Testing Facility (NTF) and will be available for Saturday production UAT on March 9th.

Email Alert Subscriptions:
Nasdaq offers customers the ability to self select news delivery across various Nasdaq markets. Create and maintain a profile for updating alert preferences and contact information. Visit the enrollment form on the Nasdaq Trader website and sign up today! Please note that if you choose to unsubscribe from an email list, you may no longer receive potentially critical emails from the NASDAQ Stock Market regarding Nasdaq's trading and data products, regulatory issues or marketplace initiatives. To unsubscribe, also click on the enrollment form

Please follow Nasdaq on Facebook RSS and Twitter.

Nasdaq (Nasdaq: NDAQ) is a leading global provider of trading, clearing, exchange technology, listing, information and public company services. Through its diverse portfolio of solutions, Nasdaq enables customers to plan, optimize and execute their business vision with confidence, using proven technologies that provide transparency and insight for navigating today's global capital markets. As the creator of the world's first electronic stock market, its technology powers more than 90 marketplaces in 50 countries, and 1 in 10 of the world's securities transactions. Nasdaq is home to approximately 3,900 total listings with a market value of approximately $13 trillion. To learn more, visit: