Tuesday, March 10, 2020

Data Technical News #2020 - 9
UPDATE: Nasdaq Issues New IP Multicast Addresses for Nasdaq Global Index Data Service (GIDS)

Markets Impacted:

  • All Markets

Products Impacted:

  • Nasdaq Global Index Data Service (GIDS)

Contact Information:

  • Nasdaq Global Indexes via email at IndexServices@nasdaq.com or by phone at + 1 844 717 0708 (for US Callers) or +1 301 978 8311 (for International Callers)

What you need to know:

Nasdaq has completed its technology refresh for GIDS. The system updates include:

• Upgrade of GIDS application servers in Carteret and Chicago data centers

• Migration of GIDS Disaster Recovery (DR) functionality to Chicago (from Ashburn)

• Duplication of the DR GIDS data streams

UPDATE (6/3/2020): Now that the new GIDS data streams are live, Nasdaq is asking all GIDS direct data feed subscribers of the U.S. addresses to migrate to the new IP multicast addresses on or before Monday, July 13, 2020.


What is GIDS?

Global Index Data Service (GIDS) is Nasdaq’s real-time data feed that consolidates all ~45,000 Nasdaq indexes, as well as exchange-traded products (ETPs) valuation data and third-party index data. The widespread distribution to over 600 global firms promotes capital performance transparency and education for investors, asset managers and the financial community worldwide. The GIDS feed is delivered via multicast technology.

What is the impact to GIDS customers?

UPDATE (6/3/2020): GIDS direct data feed subscribers to the United States addresses will need to migrate to new IP multicast address configurations on or before Monday, July 13, 2020. See the table below for the new GIDS multicast addresses and rendezvous point (RP) information.

New GIDS U.S. Groups

Site Channel/Purpose Group Port Source IP Address Rendezvous Point (RP)
New York Metro Area "A" - U.S. Broadcast - Single Channel 233.54.12.132 55370 206.200.107.240/29 207.251.255.43
  Rerequest   55070 206.200.107.226  
New York Metro Area "B" - U.S. Broadcast - Single Channel 233.49.196.132 55371 206.200.107.248/29 207.251.255.53
  Rerequest   55071 206.200.107.228  
Chicago Metro Area "A" – U.S. Broadcast - Single Channel 233.187.20.132 55372 206.200.95.0/25 207.251.255.97
  Rerequest   55072 206.200.92.68  
Chicago Metro Area "B" – U.S. Broadcast - Single Channel 233.211.120.132 55373 206.200.95.128/25 207.251.255.98
  Rerequest   55073 206.200.92.70  

For reference, the table below shows the legacy multicast addresses.

Legacy GIDS U.S. Groups

Site Channel/Purpose Group Port Source IP Address
New York Metro Area "A" - U.S. Broadcast - Single Channel 233.54.12.32 55370 206.200.245.128/26
  Rerequest   55070 206.200.245.35
New York Metro Area "B" - U.S. Broadcast - Single Channel 233.54.12.31 55372 206.200.245.192/26
  Rerequest   55072 206.200.245.36
Mid-Atlantic Area - U.S. Broadcast - Single Channel 233.79.85.32 55371 206.200.247.128/26
  Rerequest   55071 206.200.247.35

What benefits will the GIDS Technology Refresh bring to customers?

Benefits from the GIDS Technology Refresh include having access to two copies of the disaster recovery (DR) feed, and customers will have the ability to receive only the data they need. The GIDS Technology Refresh will now support the delivery of the data feed via multicast Sparse-Mode. This will allow customers to receive the data dynamically.

What is the timeline for the change?

UPDATE (6/3/2020)Nasdaq is now publishing GIDS in the new multicast addresses. For ease of transition, Nasdaq will support both the legacy and new multicast addresses simultaneously for the next 90 days. During this parallel period, firms must update their network configuration to read the new IP multicast addresses listed above. Nasdaq will cease to publish the GIDS feed via the legacy multicast addresses at the close of day on Friday, July 10, 2020.

Will there be any changes to the GIDS data formats?

No. The GIDS data formats will remain the same. Only the multicast address information is changing.

Will firms need to request connectivity access to the new IP Address information?

Update: 5/7/2020

Yes. In order to access the new multicast IP addresses, firms will need to submit a request to Customer Network Operations.

Where can I find additional information?

Chicago DR FAQ document: https://www.nasdaqtrader.com/content/equinixFAQs.pdf

GIDS specification: http://www.nasdaqtrader.com/Trader.aspx?id=DPSpecs_Index

IP multicast address list for all Nasdaq data feeds: http://www.nasdaqtrader.com/Trader.aspx?id=FeedIPS_Other

Update: 5/7/2020

For information regarding networking configuration, please contact Customer Network Operations.

For information regarding the data feeds or other questions, please contact Nasdaq Global Indexes.



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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.