Marchés au comptant d'Euronext (document en anglais)

The current index value is published on a continuous basis and published every 30 seconds,

using real time last traded prices from Euronext Cash markets. Index values can be qualified

as indicative, or the publication of index values may be suspended if there are circumstances

preventing correct calculation.

The official index opening is calculated by using each opening price or the previous day

reference prices in case constituents have a non-traded, halted or suspended status. In case of

IPOs, buyouts and swap offers estimated prices are being used. The official index opening

level reflects the opening prices of the index constituents at the respective and various times

that each constituent opening may occur. The official index opening level will be confirmed

on the close of the trading day.

The official opening index level is only included in the calculation of the high and low index

values provided in the Euronext closing data-feed and only when the official opening index

level creates the high or the low of the day.

The opening index level is disseminated at the same time as the first index level, and it might

not be equal to the first index level. The official opening index level will be confirmed on the

close of the trading day. The first index level will be disseminated as soon as the following

conditions are met:

1. The total weight of stocks traded, halted or suspended are equal to 100% of the total free

float market capitalization of the CAC 40 index.

2. The weight of stocks traded is superior or

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