IT – INET OTF – Additional Trading Halt Reason

As previously communicated in IT Notice (99/14) , Nasdaq Nordic will introduce an additional Trading Halt Reason Code for knock-out events on Nasdaq Copenhagen, Helsinki and Stockholm. “KO = Trading Halt - Knock-Out” reason code is planned to be used in production from January 19, 2015 and it will be available for testing in INET OTF and GCF4 as of December 15, 2014.

INET identifiers:

Market segments impacted by the Trading Halt Reason code “Trading Halt - Knock-Out”:

Protocol changes:
TotalView-ITCH
“KO”, a new ITCH trade halt reason code in ITCH Order Book Trading Action message.

GCF TIP
In TIP, the reason code is added to the Basic Data Table Entry message. Through this means, the new halt code will be available as Stop Code [STc] in the real-time TradingAction and the reference data Basic Data Tradable messages.

Protocol specifications:

Next versions of INET protocol specifications are available at the Nasdaq Nordic Technical Information website, under INET Nordic Protocol Specifications .

Time schedule:
The Trading Halt Knock-Out reason code is planned for launch:

• INET Test (OTF), GCF 4 – December 15, 2014
• INET Production  – January 19, 2015
   

INET Nordic Market Model:
Changes will be reflected in the Market Model valid from January 19, 2015.

Questions and feedback:
If you have any questions regarding this Exchange Notice, please contact Na sdaq Tech Support at:
+46 8 405 6410, operator@nasdaq.com .

Best regards,

Nasdaq Nordic
Nasdaq Copenhagen, Nasdaq Helsinki, Nasdaq Iceland, Nasdaq Riga, Nasdaq Stockholm, Nasdaq Tallinn and Nasdaq Vilnius are respectively brand names for NASDAQ OMX Copenhagen A/S, NASDAQ OMX Helsinki Ltd., NASDAQ OMX Iceland hf., NASDAQ OMX Riga AS, NASDAQ OMX Stockholm AB, NASDAQ OMX Tallinn AS and AB NASDAQ OMX Vilnius. Nasdaq Nordic represents the common offering by Nasdaq Copenhagen, Nasdaq Helsinki, Nasdaq Iceland and Nasdaq Stockholm.