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Nasdaq Helsinki (Helsingin pörssi): Rules & Regulations

Nasdaq Helsinki is a regulated market governed by the Finnish Act on Trading in Financial Instruments (1070/2017) and subject to supervision by the Finnish Financial Supervisory Authority (in Finnish Finanssivalvonta).

According to the Finnish Act on Trading in Financial Instruments, a stock exchange shall have transparent and non-discretionary rules and procedures that provide for fair and orderly trading as well as objective criteria for the efficient execution of orders. The stock exchange rules and any amendments thereto shall be confirmed by the Ministry of Finance if the rules fulfill the requirements and are deemed likely to ensure reliable and equal trading. Through the issuer rules, Nasdaq Helsinki Ltd carries out the conditions which are set forth by the legislator. The rules for Nasdaq Helsinki are also adapted to existing EU directives and regulations such as the (EU) Market Abuse Regulation (MAR), the (EU) Transparency Directive, the (EU) Directive regarding Markets in Financial Instruments (MiFID II) and the (EU) Takeover Directive.

The rules thus include the specific requirements for issuers and their financial instruments to be admitted to trading at Nasdaq Helsinki, including the rules which define an issuer's disclosure requirements in respect of the market and Nasdaq Helsinki. The trading is arranged on the Official list and on the regulated market (Prelist and SPAC segment) in accordance with the Nordic Member Rules.

Support

For older rule or market model versions, please email:

Diyah.Ali@nasdaq.com

Issuer Rules

Under the heading RULEBOOKS/RULES, you will find the current rulebooks and rules. In the SUPPORTING DOCUMENTS section, you will find Q&As, documents related to OAM disclosure storage (Finland) such as guidance on disclosure categories etc. In the REGULATORY NOTICES & UPCOMING RULEBOOKS section, you will find regulatory notices pertaining to rule changes and the upcoming version of the new rulebooks.

Rulebooks/Rules (EN)
Nasdaq Nordic Main Market – Shares – Rulebook Open Corporate Governance Code 2026 Open Corporate Governance Code 2025 Open Nasdaq Helsinki - Regulated Market - Rulebook for Issuers of Exchange Traded Notes 18 December 2024 Open New Guidelines for Insiders, Dec 4 2024 Open New Guidelines for Insiders, Dec 4 2024 track Open Guidelines for Actively-managed Funds - 26 Sep 2013 Open Rules of Procedures for Disciplinary Committee – 25 April 2022 Open Rules of the Exchange for Issuers of Other Instruments - 6 June 2026 Open Nasdaq Nordic Main Market – Fixed Income Instruments exempted from prospectus requirement – Rulebook Open
Rulebooks/Rules (FI)
Pörssin säännöt muiden instrumenttien liikkeeseenlaskijoille – Joukkovelkakirjat - Rahasto - osuudet - Muilla markkinapaikoilla listatut arvopaperit 6.6.2026 Open Pörssin säännöt osakkeiden liikkeeseenlaskijoille 6.6.2026 Open Hallinnointikoodi 2026 Open Hallinnointikoodi 2025 Open Nasdaq Helsinki - Säännelty Markkina - Pörssin säännöt ETN-tuotteiden liikkeeseenlaskijoille 18.12.2024 Open Uusi Pörssin sisäpiiriohje 4.12.2024 (rulebook) Open Uusi Pörssin sisäpiiriohje 4.12.2024 track Open Ohje aktiivisesti-hallinnoiduille rahastoille - 26 Sep 2013 Open Nasdaq Helsinki - Kurinpitolautakunnan työjärjestys - 25.4.2022 Open
Supporting Documents
OAM ESAP Tiedoteluokat Q&A Heinäkuu 2026 Open Disclosure categories OAM ESAP July 10, 2026 Open OAM ESAP Disclosure Categories Q&A July 2026 Open Kysymyksiä ja vastauksia: Nasdaq Nordic Main Market Q&A on SPAC Listings Open Nasdaq Nordic Guidance on the Requirements for Products Referencing Crypto Assets Open xHTML Reporting to OAM Open Q&A for OAM message categories Open Disclosure categories Open 1.4.2020 - Tietoa taloudelliseen raportointiin liittyen - Information with regards to financial reporting Open
Regulatory Notices & Upcoming Rulebooks (EN)
Nasdaq Helsinki - Regulatory Notice 17 July 2026 – MAR Delegated regulation and insider list formats Open Nasdaq Helsinki – Regulatory Notice – OAM ESAP Disclosure categories Q&A July 2026 Open Nasdaq Helsinki – Regulatory Notice 22 June 2026 – ESAP and disclosure categories Open Nasdaq Helsinki - Regulatory Notice 10 June 2026 - Nasdaq Helsinki Ltd's issuers and Certified Advisers, Corporate Governance Code 2026 Open Upcoming version: Finnish Corporate Governance Code 2026 Open Nasdaq Helsinki - Regulatory Notice 5 June 2026 - FIN-FSA has confirmed the rule changes Open Nasdaq Helsinki - Regulatory Notice 2 June 2026 – MAR art 17 and Guidelines for Insiders Open Regulatory Notice 7 May 2026: Rulebook for Issuers of Bonds and Exchange Traded Funds Open Upcoming version: Rules for Issuers of Other Instruments – Bonds – ETFs, effective 6.6.2026 Open Regulatory Notice - Changes to the notification of trades with issuer's own shares - April 16, 2026 Open Nasdaq Nordic Main Market Rulebook for Issuer of Shares - Supplement B - April 20, 2026 Open Nasdaq Nordic Main Market Rulebook for Issuer of Shares - Supplement B - April 20, 2026 - track Open Regulatory Notice: Entry into force of changes to the Rulebook for Issuers of Shares, effective 12 January 2026 Open Regulatory Notice: Changes to the Nasdaq Nordic Main Market Rulebook for Issuers of Shares Supplement B, effective 12 January 2026 Open Upcoming version: Nasdaq Nordic Main Market – Shares – Rulebook, effective 12 January 2026 Open Regulatory Notice 27 June 2025: Changes to the Nasdaq Nordic Guidance on the Requirements for Products Referencing Crypto Assets Open Mark-up version: Guidance on the Requirements for Products Referencing Crypto Assets, 27 June 2025 Open Regulatory Notice: Changes to the Nasdaq Nordic Main Market Rulebook for Issuers of Shares, effective 7 July 2025 Open Upcoming version: Nasdaq Nordic Main Market – Shares – Rulebook, effective 7 July 2025 Open Upcoming: Rulebook for Issuers of fixed income securities exempt from the requirement to publish a prospectus 16.4.2025 Open Upcoming version track: Rulebook for Issuers of fixed income securities exempt from the requirement to publish a prospectus Open Nasdaq Helsinki - Regulatory Notice 14 April 2025: Prospectus exempted rulebook Open Upcoming: New Corporate Governance Code 2025 Open
Regulatory Notices & Upcoming Rulebooks (FI)
Sääntötiedote 17.7.2026 – MAR delegoitu asetus ja sisäpiiriluettelomallit Open Sääntötiedote 10.7.2026 – OAM ESAP Tiedoteluokat Q&A Heinäkuu 2026 Open Sääntötiedote 22.6.2026 – ESAP ja tiedoteluokat 10.7.2026 Open Sääntötiedote 10.6.2026 - Nasdaq Helsinki Oy:n liikkeeseenlaskijoille ja hyväksytyille neuvonantajille, Hallinnointikoodi 2026 Open Tulossa voimaan: Hallinnointikoodi 2026 Open Sääntötiedote 5.6.2026 - Finanssivalvonta vahvistanut pörssin sääntömuutokset Open Sääntötiedote 2.6.2026 – MAR 17 muutokset ja Sisäpiiriohje Open Sääntötiedote 7.5.2026 - Pörssin säännöt muiden instrumenttien liikkeeseenlaskijoille Open Tulossa voimaan: Pörssin säännöt muiden instrumenttien liikkeeseenlaskijoille 6.6.2026 final track Open Sääntötiedote - Muutoksia omilla osakkeilla tehtyjen kauppojen raportointiin Open Pörssin säännöt osakkeiden liikkeeseenlaskijoille Liite B 20.4.2026 Open Pörssin säännöt osakkeiden liikkeeseenlaskijoille Liite B 20.4.2026 - track Open Sääntötiedote: Muutosten voimaantulo 12.1.2026 - Pörssin säännöt osakkeiden liikkeeseenlaskijoille -sääntökirja Open Sääntötiedote: Muutoksia Pörssin säännöt osakkeiden liikeeseenlaskijoille -sääntökirjaan 12.1.2026 Open Tulossa voimaan: Pörssin säännöt osakkeiden liikkeeseenlaskijoille Liite B 12.1.2026 Open Sääntötiedote 27.6.2025: Muutoksia Nasdaq Nordic Guidance on the Requirements for Products Referencing Crypto Assets - ohjeeseen Open Sääntötiedote: Muutoksia Pörssin säännöt osakkeiden liikeeseenlaskijoille -sääntökirjaan 7.7.2025 Open Tulossa voimaan: Pörssin säännöt osakkeiden liikkeeseenlaskijoille, 7.7.2025 Open Tulossa voimaan: Pörssin säännöt esitepoikkeusten piiriin kuuluville joukkovelkakirjan Liikkeeseenlaskijoille 16.4.2025 Open Tulossa voimaan track: Pörssin säännöt esitepoikkeusten piiriin kuuluville joukkovelkakirjan liikkeeseenlaskijoille 16.4.2025 Open Nasdaq Helsinki - Sääntötiedote 14.4.2025: Pörssin säännöt esitepoikkeuksen piiriin kuuluville joukkovelkakirjojen liikkeeseenlaskijoille Open Tulossa voimaan: Uusi Hallinnointikoodi 2025 Open

Local Rules

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Common Rules

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Nordic Main Market Rules

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First North MTF Rules

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Rules & Regulations - Consultations Nasdaq and Governmental consultations in regards to rules & regulations. Learn More