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 19.11.2008 that it purchased on 17.11.2008 700 HELEX common registered shares with a total value of euro 5,096.00
2. on 19.11.2008 that it sold on 17.11.2008 5,700 HELEX common registered shares with a total value of euro 41,318.16
3. on 19.11.2008 that it purchased on 18.11.2008 700 HELEX common registered shares with a total value of euro 4,858.00
4. on 19.11.2008 that it sold on 18.11.2008 500 HELEX common registered shares with a total value of euro 3,500.00
All the above transactions were made for the derivatives market making account.