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Ad Hoc Publicity

Ad hoc publicity requires listed companies to disclose price-sensitive facts in a clear and timely manner by means of an ad hoc announcement. This promotes market transparency and ensures equal treatment of market participants.

Price-Sensitive Facts

Price-sensitive facts are events arising within the listed company’s sphere of activity which, when made public, could be capable of triggering a significant change in stock market price.

Annual and interim reports of listed companies with primary listed equity securities must always be distributed with an ad hoc announcement. Apart from this, there is no exhaustive list of price-sensitive facts. The responsibility for assessing whether a fact may be price-sensitive lies exclusively with the listed company. It must make this assessment on a case-by-case basis prior to disclosure (ex ante) and at its own discretion, taking into account the company’s internal division of responsibilities.

Examples which may, in individual cases, qualify as price-sensitive:

  • financial figures (annual and interim reports must always be published by means of an ad hoc announcement)
  • changes in capital
  • information on business performance, e.g. significant changes in profit such as profit collapse/profit hike or profit warnings; discontinuation of the dividend
  • public purchase offers; takeovers; spin-offs; mergers
  • restructurings; reorganisations
  • significant changes in business operations, e.g. new sales partners, new products, withdrawal or recall of a product
  • significant shifts in the shareholder structure
  • significant staff changes

Distribution of the Ad Hoc Announcement

An ad hoc announcement must be published as soon as the listed company becomes aware of the main points of the price-sensitive fact. As a rule, distribution must take place outside the critical trading hours.

For companies with primary listed equity securities (equity issuers), the critical trading hours begin 90 minutes before the start of trading (i.e. 07:30 CET) and end after the close of trading (i.e. 17:40 CET) (see figure).

CONNEXOR Reporting
ad hoc publication

The listed company must distribute the ad hoc announcement simultaneously to at least the following prescribed recipients:

  1.  SIX Exchange Regulation AG (90 minutes in advance if published during trading hours);
  2.  at least two electronic information systems widely used by professional market participants (e.g. Bloomberg, Reuters);
  3.  at least two Swiss media (printed or electronic) of national importance;
  4.  any interested party upon request.

In addition, the ad hoc announcement must be published on the listed company’s website in a dedicated directory for ad hoc announcements simultaneously with its distribution.

If, in exceptional cases, the ad hoc announcement must be distributed during critical trading hours or during trading hours respectively, SIX Exchange Regulation AG must be contacted immediately. Depending on the circumstances, trading in the affected securities may be temporarily suspended (procedure see below).

1. Contacting the Corporate Disclosure team of SIX Exchange Regulation AG by telephone

  • Tel. +41 58 399 55 05 on trading days (07:30 CET to 17:40 CET)
  • Facts: Summary
  • Price-sensitive fact: Statement and reasoning
  • Possible suspension of trading: Statement and reasoning
  • Time of publication: generally 90 minutes after contact

2. Email for authentication and documentation
Immediately after the telephone call, send an email to adhoc@six-group.com containing:

  • Facts: Summary
  • Price-sensitive fact: Statement and reasoning
  • Possible suspension of trading: Statement and reasoning
  • Time of publication: generally 90 minutes after contact
  • Attachment: draft of ad hoc announcement
  • In case of legal representation: power of attorney

3. Preparation of the ad hoc announcement

  • Finalisation of the ad hoc announcement (including any translations)
  • Preparation and scheduling of distribution

4. Distribution of the ad hoc announcement
The listed company may only publish the ad hoc announcement once SIX Exchange Regulation AG has authorised publication and decided upon a possible temporary suspension of trading. 

 

 

Further Requirements

The ad hoc announcement must also comply with the following requirements:

  • The information contained in the ad hoc announcement must be factual, clear and complete.
  • The ad hoc announcement must begin with the classification “Ad hoc announcement pursuant to Art. 53 LR” (so called “flagging”).
  • The listed company may have third parties to fulfil its obligations in connection with ad hoc publicity obligations; in all cases, the responsibility remains always with the listed company.

​Regulations

Listing Rules Listing Rules Directive Ad hoc Publicity Directive on Ad hoc Publicity Further Regulations

​Regulatory Notices

SIX Exchange Regulation Communiqué No. 1/2025 Remarks on the timing of distribution of annual reports in the context of ad hoc publicity Further Regulatory Notices

​Guidance

Guideline on the Directive on Ad hoc Publicity Guideline of SIX Exchange Regulation AG on the Directive on Ad hoc Publicity of 1 October 2021 Further Guidance

​Media Releases

17.04.2025 Clariant AG’s arbitration claim largely upheld The Court of Arbitration of SIX Group AG has largely overturned a decision of the Sanctions Commission dated 11 May 2023. It held that Clariant AG disseminated the ad hoc announcement in connection with the investigation concerning the accounting matters 2021/22 in a timely manner. Concerning the negligent violation of the ad hoc regulation in connection with the distribution of the 2021 Annual Report, determined by the Sanctions Commission, the Court of Arbitration imposed a fine of CHF 100’000. Further Media Releases

​Sanctions

Arbitration award in the matter of SaKo-IV/2023 LR 53, DAH 5 | Annulment of decision SaKo IV/2023 regarding the delayed publication of an ad hoc announcement in connection with an internal investigation; confirmation of decision SaKo IV/2023 regarding the non‑publication of the annual report in accordance with the ad hoc publicity requirements | Negligence Further Sanctions
  • Price-Sensitive Facts
  • Distribution of the Ad Hoc Announcement
  • Further Requirements
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