ANNOUNCEMENT

FIRST REPETITIVE EXTRAORDINARY GENERAL SHAREHOLDERS' MEETING

19 September 2005 - The Extraordinary General Meeting of the shareholders of Hellenic Exchanges Holding S.A. (HELEX) took place today, September 19th 2005, at the historic trading floor of the Athens Exchange. At the General Meeting, shareholders representing 36.972.010 common registered shares, i.e. 52,01% out of a total of 71.088.173 common registered shares, participated.

The General Shareholders Meeting approved the following items on the Agenda (note that the Company has 857.710 shares treasury stock, which counted towards meeting the quorum for the General Meeting, but which do not have voting rights. As a result, at the General Meeting, the shares with voting rights amounted to 36.114.300):

1.   Item #1: Of the shareholders present and voting, 100% (36.114.300 shares), approved the reduction in share capital of the Company by EUR2.573.130 by cancelling 857.710 own common registered shares, which were the result of share buy-backs, based on the article 17 of Law 2190/1920 as it applies.

2.   Item #2: Of the shareholders present and voting, 100% (36.114.300 shares), approved the modification of article 5 (Share Capital) of the Company's Articles of Association.

3.   Item #3: Of the shareholders present and voting, 100% (36.114.300 shares), approved the modification of article 2 (Purpose of the Company) of the Company's Articles of Association.