Re-weighting date change
The date of re-weighting for the AEX-index and the AMX-index will change from the third Friday in February to the first trading day of March. The re-weighting will take place on the first trading day in March on the condition that at least 95% of the value of the index is known at that day, otherwise the re-weighting is put forward one trading day. This change occurs in order to reduce the amount of trade pressure caused by settlement date and the re-weighting date, and is consistent with the reactions of market participants to a consultation paper concerning this issue.
Free Float Adjustments
The AEX-index and the AMX -index will incorporate free float adjustment factors to the weightings of each constituent in the index. The free float adjustments will be calculated under a banding scale system. This change follows the international trend in indexing to only reflect freely available market capitalisation.
Velocity Screen
In the selection process of the AEX-index and the AMX-index each stock will undergo a velocity screening process. The velocity calculation ensures that only stocks, which trade over 20% of the issued shares on an annual basis, are included in the selection process.
These changes to the ground rules become effective as from 1 March 2001.
