1. The home Member State may make an issuer subject to requirements more stringent than those laid down in this Directive, except that it may not require issuers to publish periodic financial information on a more frequent basis than the annual financial reports referred to in Article 4 and the half-yearly financial reports referred to in Article 5.
1a. By way of derogation from paragraph 1, the home Member States may require issuers to publish additional periodic financial information on a more frequent basis than the annual financial reports referred to in Article 4 and the half-yearly financial reports referred to in Article 5, where the following conditions are met:
- the additional periodic financial information does not constitute a disproportionate financial burden in the Member State concerned, in particular for the small and medium-sized issuers concerned, and
- the content of the additional periodic financial information required is proportionate to the factors that contribut
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