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 27.10.2008 that it purchased on 23.10.2008 1,100 HELEX common registered shares with a total value of euro 6,710.00
2. on 27.10.2008 that it sold on 23.10.2008 18,300 HELEX common registered shares with a total value of euro 120,041.94
3. on 27.10.2008 that it purchased on 24.10.2008 19,600 HELEX common registered shares with a total value of euro 103,379.04
4. on 27.10.2008 that it purchased on 24.10.2008 1,200 HELEX common registered shares with a total value of euro 6,526.00
5. on 27.10.2008 that it sold on 24.10.2008 1,220 HELEX common registered shares with a total value of euro 6,466.00
6. on 27.10.2008 that it sold on 24.10.2008 3,200 HELEX common registered shares with a total value of euro 16,068.00
7. on 29.10.2008 that it purchased on 27.10.2008 1,800 HELEX common registered shares with a total value of euro 10,131.06
8. on 29.10.2008 that it sold on 27.10.2008 2.200 HELEX common registered shares with a total value of euro 13,016.00
All the above transactions, except numbers 4 and 5, were made for the derivatives market making account.