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 05.11.2008 that it purchased on 03.11.2008 14,500 HELEX common registered shares with a total value of €103,104.96

2. on 05.11.2008 that it sold on 03.11.2008 26,800 HELEX common registered shares with a total value of €191,370.44

3. on 05.11.2008 that it sold on 04.11.2008 7,800 HELEX common registered shares with a total value of €57,036.00

4. on 06.11.2008 that it purchased on 05.11.2008 10,500 HELEX common registered shares with a total value of €82,633.40

5. on 06.11.2008 that it sold on 05.11.2008 9,000 HELEX common registered shares with a total value of €71,877.32

All the above transactions were made for the derivatives market making account.