Index consultations

Euronext Indices is committed to provide indices that respond to the best of its abilty to the needs of all stakeholders of its indices. In order to achieve this and in response to developments on the markets frequent feedback is sought among the known users of the indices. For major changes Euronext Indices will launch consultations from time to time via this page.

Each consultation will be open for at least 3 weeks.

A summary of the comments received will be published within 3 weeks after the consultation is closed. In principle the comments will be made public anonymously, indicating only the nature of person or institution providing the comment.

Taking into account the feedback received in the consultation, the Administrator will formulate a proposal for a rule change to the appropriate oversight committee for approval. As a rule such decision will be taken within 3 months after the decision.

Consultation OB Benchmark and Mutual Fund Index Methodology

Euronext would like to consult on proposed changes to the rulebook methodology of the OB Benchmark and Mutual Fund Index Family.

Oslo Børs conducts its reviews on a semi-annual basis. For index inclusion into the OSEBX and OSEFX, turnover data from the preceding 12 months is taken into account. The issue arises for newly listed companies, which lack turnover data covering the full Relevant Period. As a result, recent IPOs face a heightened risk of exclusion from the index due to low turnover rankings.

This consultation proposes to address this issue by introducing a measure that extrapolates turnover for recently listed companies with only limited available turnover data.

Stakeholders will have until the 3^rd of March 2026 to react to the consultation. The new rules, if validated by Index Design, will be implemented as of the September 2026 Review.

Visit OB Benchmark and Mutual Fund Index Methodology consultation