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 30.09.2008 that it sold on 29.09.2008 17,078 HELEX common registered shares with a total value of €144,298.32

2. on 30.09.2008 that it sold on 29.09.2008 15,300 HELEX common registered shares with a total value of €129,006.28

3. on 01.10.2008 that it purchased on 30.09.2008 3,100 HELEX common registered shares with a total value of €25,976.00

4. on 01.10.2008 that it sold on 30.09.2008 6,115 HELEX common registered shares with a total value of €51,035.50

5. on 02.10.2008 that it purchased on 01.10.2008 40,000 HELEX common registered shares with a total value of €342,308.22

6. on 02.10.2008 that it sold on 01.10.2008 3,185 HELEX common registered shares with a total value of €27,178.50

7. on 03.10.2008 that it purchased on 02.10.2008 1,010 HELEX common registered shares with a total value of €8,583.80

8. on 03.10.2008 that it sold on 02.10.2008 600 HELEX common registered shares with a total value of €5,324.00

9. on 03.10.2008 that it sold on 02.10.2008 10,070 HELEX common registered shares with a total value of €85,105.26

Transactions 2-4 and 5-7 were made for the derivatives market making account.