IT - Verification of failover functionality (Genium INET, NDTS and FUSION FI) - UPDATE
On Saturday October 3, 2026, Nasdaq Nordic will perform verification tests of the site failover functionality in the Genium INET Production, Nasdaq Equity Derivatives Trading Production (NDTS) and Fixed Income Trading (FUSION FI) environments. The systems will be available for Nasdaq Exchange and Clearing members for login and standard reference data and business queries. No other type of business functionality will be enabled.
Members are recommended to take advantage of this opportunity to test their connectivity and ability to failover to the Nasdaq site B (STOCKHOLM SOUTH) datacenter.
Please note that only participants that have connectivity access to site B (STOCKHOLM SOUTH) can participate in this test, i.e., Co-Lo customers with access only to site A (VASBY) can’t participate.
The failover verification test will be available for the members in the following markets:
Nasdaq Equity Derivatives Trading system (NDTS):
- Nasdaq Stockholm AB Derivatives markets (Equity and Index Derivatives on Swedish, Danish, Finnish, and Norwegian markets)
FUSION Fixed Income (FUSION FI)
- Nasdaq Stockholm AB Fixed Income Derivatives markets
- Nasdaq Stockholm AB Fixed Income markets
- Nasdaq Copenhagen A/S Fixed Income markets
- Nasdaq Helsinki Ltd. Fixed Income markets
- Nasdaq Iceland hf. Fixed Income markets
- Nasdaq Tallinn AS Fixed Income markets
- Nasdaq Riga AS Fixed Income markets
- AB Nasdaq Vilnius Fixed Income markets
Genium INET Clearing system:
- Nasdaq Clearing AB, Equity and Fixed Income Derivatives clearing
Please note that this failover test applies to Genium INET, NDTS and FUSION FI only, i.e., INET Nordic (Cash Equity Trading) and GCF (Genium Consolidated Feed) are excluded from this test.
Saturday October 3 - Time plan
| Time (CEST) | Details | Expected member action |
| 10:00-11:00 |
Genium INET, NDTS and FUSION FI Production systems available for login in the normal configuration. The Genium INET, NDTS and FUSION FI systems will be available for login in normal configuration with site A being the primary site, allowing OMnet, ITCH and OUCH connectivity via both site A and site B, and FIX connectivity via site A (Genium INET) or via site A or site B (NDTS and FUSION FI). The markets will be in closed state, with login allowed and business queries enabled. Markets will remain closed throughout the test. |
Login to your primary address on site A (VASBY). |
| 11:00-13:00 |
A controlled failover from site A to site B will be performed, simulating a complete loss of Genium INET, NDTS and FUSION FI on site A. All accessibility to Genium INET, NDTS and FUSION FI will hence be disabled until the failover to site B has been completed. Please note that network connectivity still remains active to site A datacenter (VASBY) to prevent impact for customers connecting to other Nasdaq services located at site A. The failover activities are estimated to be completed at 13:00 CEST at latest, from which time login will be available to site B (STOCKHOLM SOUTH) only. |
Prepare the redirection of your connections to site B (STOCKHOLM SOUTH). No logins allowed before the failover has been completed. |
| 13:00-14:00 |
Failover completed, and member login enabled to site B. Login for Genium INET, NDTS and FUSION FI Production systems will be available on site B (STOCKHOLM SOUTH) only. Site A (VASBY) unavailable. |
Login to your failover address on site B (STOCKHOLM SOUTH)*. |
| 14:00 |
Test completed; Genium INET, NDTS and FUSION FI Production system shutdown. Test completed, the Genium INET, NDTS and FUSION FI Production systems will be shut down and configuration restored to normal weekend operation. |
Restore your connections to normal configuration. Report issues and comments using separate Registration and Report form. See below Registration and Reporting section for further information. |
*) Failover IP information for site B (STOCKHOLM SOUTH) can be found in the Member Portal, Technical Access view (OUCH, FIX, GLIMPSE and ITCH re-request ports), Connectivity Guidelines on European Market Connectivity page (ITCH Multicast feeds) or by sending an e-mail to MAC@nasdaq.com.
Failback to site A (VASBY)
Genium INET: Members that would like to test failback to site A (VASBY) have possibility to do so on Monday October 5 from 05:00 CEST.
NDTS and FUSION FI: Members can test failback to site A (VASBY) on Monday October 5 from 03:30 CEST when NDTS and FUSION FI will be back to normal operations.
Nasdaq Technical Support will be available for support queries on Monday October 5 from 07:00 CEST via EMO@nasdaq.com or +46 8 405 77 00.
Communication plan
IT Information messages (IT-Notices) and direct e-mails will be sent out to all registered members if there are any deviations from the planned timings.
Members are advised to ensure subscription to the IT Information – Equity Derivatives Trading, IT Information – Equity Derivatives Clearing or IT Information – Fixed Income on the following site:
https://subscribe.news.eu.nasdaq.com/news/subscribe
Nasdaq Front-Ends
-
Q-Port
Available for login and query-type transactions.
-
Nasdaq Rates Trader
Available for login
Protocol-specific details
-
OMnet (Genium INET):
Login enabled. No transactions are available.
Messages supported: BI9.
Queries supported: All query-type transactions are available, although replies will reflect that October 3 is not a business day.
-
OUCH (NDTS):
Login enabled.
Messages supported: Y, y, z.
-
FIX (Genium INET, NDTS, FUSION FI):
Login enabled.
Messages supported: Administrative messages.
-
ITCH, GLIMPSE (NDTS, FUSION FI):
Multicast groups and Re-Request available. Login enabled for GLIMPSE and Re-request TCP.
Messages supported (NDTS): S, M. -
Messages supported (FUSION FI): S, M.
-
AMD (NDTS):
Not available.
Please note that there will be a unique session ID for SoupTCP and MoldUDP for Saturday October 3.
For further information on Connectivity details, please see: https://www.nasdaq.com/solutions/european-market-connectivity and Member Portal.
For verification of Genium INET FIX IP details for site B (STOCKHOLM SOUTH), please contact MAC@nasdaq.com.
Registration and Reporting
Members shall register for the test by sending the Registration and Report form (attached to this IT-Notice) to technicalrelations@nasdaq.com no later than October 1, 2026. This will ensure proper contact information is collected that will be used during the failover test.
After the test has been completed, you are welcome to report any issues or comments you may have by using the same Registration and Report form. If everything worked as intended, you do not need to resend the form to us.
The result of the test, including member participation, will be reported to the Financial Supervisory Authorities in the Nordics.
Please ensure this message is forwarded to your organization’s Compliance Officer.
Support
Genium INET, NDTS and FUSION FI Technical Support will be available via the normal support channel during the failover test on Saturday October 3, 10:00-14:00 CEST.
Thereafter, Genium INET and NDTS Technical Support will be available for support queries on Monday October 5 from 07:00 CEST.
Genium INET, NDTS and FUSION FI Technical Support
Tel: +46 8 405 77 00
E-mail: EMO@nasdaq.com
For further information, please contact:
Technical Relations
technicalrelations@nasdaq.com