Trading at Nasdaq Helsinki is governed by the Issuer Rules, the Member Rules and the Warrant Rulebook. Nasdaq Helsinki also operates First North, an MTF in Finland that is subject to a separate Rulebook.

ISSUER RULES - säännöt liikkeeseenlaskijoille

Listing requirements are a vital part of a listing. There are requirements to become listed as well as ongoing requirements that need to be fulfilled while the company is listed. Disclosure rules regulate the procedures on when and how listed companies disclose information to the market. All information that is likely to materially influence the valuation of a listed company must be published in a way that ensures that it reaches all market participants simultaneously. The rules for issuers with regards to shares are in substance harmonized between all four (4) exchanges, especially the listing requirement and disclosure rules.
 

* Nordic Main Market Rulebook for Issuers of shares shall enter into force for Nasdaq Helsinki on 1 March 2021.