IT – INET Nordic – Suppressing of order triggering a Volatility Guard on ITCH (71/15)
Based on member request Nasdaq Nordic and Nasdaq Baltic have decided to improve the handling of an order triggering a Volatility Guard. The order triggering the Volatility Guard is currently published in the “Add Order” message right before the “Order Book Trading Action” moves into Trading State “H” (Halt). This lead to a crossed book for a very short moment.
Nasdaq Nordic and Nasdaq Baltic will change this. The order triggering a Volatility Guard will not be published on ITCH. If the order remains after the auction, and is a display order, it will be published at that time.
Protocol specifications
There will be no updates to the ITCH protocol specification due to this change. Nasdaq Nordic protocol specifications are always available at Nasdaq Nordic Technical Information web site.
Market Model
The Nasdaq Nordic INET Market Model will be updated effective January 18, 2016.
Time Schedule
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INET Test (OTF) – December 14, 2015
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INET Production – January 18, 2016
Testing support
For technical questions relating to testing, please contact Nasdaq Cash Equity Operations:
Tel: +46 8 405 6410
E-mail: operator@nasdaq.com
Questions and feedback
For further information and feedback concerning this information, please contact Ronny Thellman, +46 8 405 6313, ronny.thellman@nasdaq.com.
Best regards,
Nasdaq Nordic and Nasdaq Baltic
Nasdaq Copenhagen, Nasdaq Helsinki, Nasdaq Iceland, Nasdaq Riga, Nasdaq Stockholm, Nasdaq Tallinn and Nasdaq Vilnius are respectively brand names for Nasdaq Copenhagen A/S, Nasdaq Helsinki Ltd, Nasdaq Iceland hf., Nasdaq Riga AS, Nasdaq Stockholm AB, Nasdaq Tallinn AS and AB Nasdaq Vilnius. Nasdaq Nordic represents the common offering by Nasdaq Copenhagen, Nasdaq Helsinki, Nasdaq Iceland and Nasdaq Stockholm. Nasdaq Baltic represents the common offering by Nasdaq Tallinn, Nasdaq Riga and Nasdaq Vilnius.
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