HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE S.A.

Financial Calendar 2010.

As part of the obligations of the Company to inform investors, Hellenic Exchanges SA announces the Financial Calendar for 2010:
- Release of Fiscal Year 2009 Results: Monday March 8th 2010
- Release of First Quarter 2010 Results: Monday May 17th 2010
- Annual General Meeting of Shareholders: Wednesday May 19th 2010
- Ex-dividend date: Wednesday May 26th 2010
The cutoff date for the dividend will take place before the expiration date of the liquid - at the time of the cutoff date - series of derivative products, on which the HELEX share is an underlying security.
- Dividend beneficiaries - Record date Friday May 28th 2010
- Dividend payment date: Thursday June 3rd 2010
- Release of Six Month 2010 Results: Wednesday July 28th 2010
- Release of Nine Month 2010 Results: Monday November 8th 2010
The fiscal year 2009 dividend will be paid out through a bank. The bank chosen (to be announced later) will credit the operators' accounts, and they in turn will credit the beneficiaries' accounts.
The results will be published after the end of trading on Athens Exchange on the release day, on the Company's website (www.helex.gr) as well as the website of Athens Exchange (www.athex.gr). The results will be published in the press two working days following their publication on the Company's website.