Due to changes in the composition of the time of the shares of ATHEX that will apply as of October 18, 2004, the shares that are transferred into the 3-hour trading model will be deleted from the list of the relevant indices in which they participate, in accordance with the ATHEX Regulation.

Specifically, the following changes will be implemented:

All changes will be implemented after the closing of the trading session on October 15, 2004.