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INET Nordic

Protocol Specifications
INET Nordic Trading Platform Contact Us

INET Nordic protocol specifications are necessary for members, brokers and independent software vendor (ISV) trading application integration with the INET Nordic trading platform. The markets available in INET Nordic are Nasdaq Nordic and Baltic, and Spotlight Stock Market.

The protocol specifications below are valid for the INET Nordic Production and Test (NTF) systems.

When available, future protocol specifications are upcoming INET protocols available in INET Test NTF and in INET Production according to time schedules published via IT Notices.

For more information on upcoming enhancements, visit INET Nordic Enhancements and IT Notices.

The INET Nordic Market Model describes the functionalities of trading Equities and related instruments on the Nasdaq Nordic Regulated Markets and First North on Nasdaq Nordic, including Nasdaq Baltic*.

Visit our Nasdaq Nordic Member Rules & Regulations page for more information about current and upcoming INET Nordic Market Models.

*Nasdaq Nordic refers to, either each individually or all together, Nasdaq Copenhagen A/S, Nasdaq Helsinki Ltd, Nasdaq Iceland hf. and Nasdaq Stockholm AB. Nasdaq Nordic may also include Nasdaq Baltic, which respectively refers to Nasdaq Riga, Nasdaq Tallinn and Nasdaq Vilnius.

Nasdaq Nordic Member Rules & Regulations

Member Portal Log in

Resource Center
INET Nordic Protocol Specifications
OUCH Order Entry 5.01.14 Read More OUCH Order Entry 5.02.9 (PureStream - effective Aug 31, 2026 / AVD - effective Sept 21, 2026 / Reference Price Indicator - effective Nov 16, 2026) Read More FIX Order Entry 2.01.10 Read More FIX Order Entry 2.01.11 (DLTA - effective June 17, 2026) Read More FIX Order Entry 2.02.3 (PureStream - effective Aug 31, 2026 / AVD - effective Sept 21, 2026) Read More FIX DROP 2.01.6 (for FIX & OUCH order messages) Read More FIX DROP 2.02.3 (for FIX & OUCH order messages)(PureStream - effective Aug 31, 2026 / AVD - effective Sept 21, 2026) Read More FIX On-Exchange Trade Reporting 2.01.3 Read More FIX Off-Exchange (APA) Trade Reporting 1.02.5 Read More Pre-Trade Risk Management (PRM) Admin 1.00.1 Read More GLIMPSE 3.00.1 Read More NLS (Nordic Last Sale) 1.2.10 Read More NLS (Nordic Last Sale) 1.2.11 (AVD - effective Sept 21, 2026) Read More SoupBinTCP 3.00.4 Read More MoldUDP64 1.00.2 Read More FIXT.1.1 Transport Layer 1.00.4 Read More TotalView-ITCH 3.04.5 Read More TotalView-ITCH 3.04.6 (PureStream - effective Aug 31, 2026 / AVD - effective Sept 21, 2026) Read More PureStream Europe Protocol Message Changes 1.00.5 (NTF - May 11, 2026, Prod Aug 31, 2026) Read More Auction Volume Discovery - Member Impact Read More
Files and Reports via FTP/SFTP
Member Trade File 2.6 - Valid from September 27, 2025 Read More PRM Restricted Symbols File (FTP upload) 2.0 Read More
Files and Reports via FDS
EOD File Specifications 1.70.1 Read More Reference Data on File 3.0 Read More

Related Information

INET Nordic Environments

INET Nordic and Baltic production, testing and conformance information.

Learn More

Contact Us

Exchange Services

Cash equity trade support, technical support for INET, GCF, FDS, Nordic Workstation and auxiliary systems +46 8 405 7700

EMO@nasdaq.com

Member & Account Configuration

Member configurations, including users, ports and the Member Portal

MAC@nasdaq.com

Technical Relations

Market readiness upcoming enhancements, independent software vendors and other third-party technical and sales support per.froling@nasdaq.com +46 8 405 6434

technicalrelations@nasdaq.com