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Thursday, April 19, 2018

Data Technical News #2018 - 5
Index Update to GIFFD SFTP File Directory Structure and Daily files, Effective Monday, July 23, 2018 – Action Required

Markets Impacted:

  • All Markets

Data Feeds Impacted:

  • Nasdaq Global Index Flex File delivery (GIFFD)

Contact Information:

What you need to know:

Nasdaq will implement a standard GIFFD SFTP file directory structure and will remove the TOKENID within the actual file names for all index files effective Monday, July 23, 2018.

Why is Nasdaq Making This Change?

Nasdaq calculates over 40,000 Indexes and creates over 200,000 files a day. By grouping these files into sub folders, this will improve the loading and fetching time of the index files and dramatically speed the time on assigning new indexes and files to clients’ accounts.

What Changes Will Nasdaq Make to the GIFFD (SFTP) Folder Structure?

The new GIFFD SFTP file directory structure will be as follows:

  • Year(YYYY)
  • Month Day(MMDD)
  • TOKENID
  • File Type

Example of New File Structure: ftp.indexes.nasdaqomx.com/#/username/YYYY/MMDD/TOKENID/filetype/

What Changes will Nasdaq Make to the GIFFD (SFTP) Files?

Nasdaq will remove the “TOKENID” within the actual file name.

  • Existing File Name Example YYYYMMDD_TOKENID_IndexSymbol_Filetype_version.txt
  • New File Name Example YYYYMMDD_IndexSymbol_Filetype_version.txt

What Do Clients Need to Do?

All GIFFD SFTP clients will need to ensure they have updated their automated code:

Will There Be a Parallel Period?

Clients can begin testing from Monday, July 2, 2018.

What If I’m not Using GIFFD SFTP to Pull Nasdaq Index Files?

Clients pulling data directly from Global Index Watch (GIW) website or using web services URL calls to pull their Index data will not be impacted with the GIFFD SFTP file directory change. These same clients can continue to pull their Index data via the current process and will not need to make a change.

Where can I find additional information?

For questions about Nasdaq index products, please contact Nasdaq Global Information Services at +1 301 978 5307 #2.


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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: business.nasdaq.com.

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