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Friday, November 8, 2019

Data Technical News #2019 - 25
UPDATE 2/24/2020: Nasdaq to Add an Additional Summary Spin to the Summary Spin Transmission Schedule

Markets Impacted:

Products Impacted:

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What you need to know:

UPDATE 2/24/2020: Nasdaq has rescheduled the release date for the additional Summary Spin to the NFN transmission schedule.

Effective Monday, April 6, 2020, Nasdaq will add an additional Summary Spin at 8:05 a.m. ET to the Summary Spin Transmissions. The new spin will be spin #1 in the transmission schedule.

Additionally, Nasdaq is adding a new Reporting Type of “P” to the Summary Spin messages, to indicate previous day price updates entered on current day.

What is changing?

Beginning Monday, April 6, 2020, Nasdaq will add an additional Summary Spin to the Summary Spin Transmissions.

Time Transmission Message Category Message Type(s) Originator ID Session ID
8:05 Start of Summary Spin Control Message for NFN Data Service Spin #1 C P F P
8:05 NFN Statistics for NFN Data Service Spin #1 A G F P
8:05 - 8:06 NFN Summary Spin #1 F G, I F P
8:06 End-of-Summary Spin Control Message for NFN Data Service Spin #1 C S F P

This additional spin will affect the existing spin count as follows:

Code Value
1 8:05 a.m., ET
2 6:05 p.m., ET
3 6:25 p.m., ET
4 6:45 p.m., ET
5 8:00 p.m., ET

In addition to the new Summary Spin, Nasdaq is adding a new Reporting Type to indicate previous days price updates entered on the current business day.

Code Value
P Previous day’s fund price update, entered on current business day.

Please refer to the NFNDS specification document for details on the outbound data feed message changes.

How can I test this NFN change?

In preparation for this release, Nasdaq will offer the following client testing opportunities:

Nasdaq will offer one Saturday User Acceptance Test (UAT) for NFN issuers, pricing agents and market data vendors on:

  • Saturday, March 7, 2020 - UAT
  • Saturday, April 4, 2020 - Confidence Test

Nasdaq is also disseminating nightly test data via the following transmission IP multicast channels information:

Site Channel/Purpose Group Port Source IP Address
NFN Data Service Test Data Multicast Channel A 224.3.0.47 55474 206.200.162.31
NFN Data Service Test Data Multicast Channel B 224.3.0.55 55475 206.200.162.159

Firms wishing to participate in the UATs should complete and submit the NFN testing registration form to NFN Operations by the Thursday before the scheduled test date.

Where can I find additional information?

Contact NFN Operations at +1 301 978 5307 (Option #6).


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