HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Announcement of regulated information according to Law 3556/2007

Hellenic Exchanges S.A. announces, pursuant to Law 3556/2007 (articles 3 and 21) and in conjunction with article 11 of resolution 1/434/03.07.2007 of the Capital Market Commission, that EFG Eurobank Securities notified it:
1. on 31.10.2008 that it sold on 29.10.2008 3,000 HELEX common registered shares with a total value of euro 20,243.50
2. on 31.10.2008 that it sold on 30.10.2008 6,300 HELEX common registered shares with a total value of euro 43,464.60
3. on 03.11.2008 that it purchased on 31.10.2008 11,500 HELEX common registered shares with a total value of euro 78,446.00
4. on 03.11.2008 that it sold on 31.10.2008 1,000 HELEX common registered shares with a total value of euro 6,770.00
All the above transactions were made for the derivatives market making account.