HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Share buy-back

HELLENIC EXCHANGES S.A. HOLDING, CLEARING, SETTLEMENT AND REGISTRY (the Company) informs investors that, based on §4 article 4 of the European Commission Regulation 2273/2003, and in implementation of the resolution of the Annual General Meeting of shareholders of the Company of 14.5.2008, it purchased own shares, as follows:
- On 4.8.2008 75,000 own shares were purchased, at an average price of euro 8.72 per share, and total transaction cost of euro 653,736.52
Share buy-backs are taking place through the members of Athens Exchange Alpha Finance, ABG Securities, Eurobank Securities and Midas Securities.
Following the abovementioned purchases, the Company owns 1,616,453 own shares (2.29% of the total 70,485,563 shares outstanding).