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 AEX Index Family Methodology

Euronext periodically reviews the AEX Index Family methodology to ensure that it continues to reflect market developments and the needs of index users.

As part of this review, Euronext is seeking feedback on two separate topics:

A proposal to introduce an aggregate 55%-weight cap to the five largest AEX index constituents.
This proposal is intended to reduce index concentration and align with the broad-based index framework under the U.S. Commodity Futures Trading Commission (CFTC) for AEX suitability for derivatives products.
A questionnaire regarding the minimum listing history requirement applicable to newly listed companies in the AEX, where Euronext is seeking feedback on whether the current 30-day listing requirement remains appropriate.

Visit Consultation AEX Index Family Methodology