Athens Stock Exchange

The Athens Stock Exchange started trading in 1876. Its day-to-day running has been assigned to Hellenic Exchanges – Athens Stock Exchange S.A., whose shares are listed on the exchange (). Athens Stock Exchange changed into public entity in 1918. In 1995 ASE was transformed into public limited company with the only shareholder – Greek state. Greek state sold 39.67% of the shares in 1997, and 12% in 1998 through private placement. State shares were decreased to 47.7% in 1999. The derivatives market started trading in August 1999 after Athens Derivatives Exchange (ADEX) and the Athens Derivatives Exchange Clearing House started operations. The Athens stock exchange was closed on 27 June 2015 because of the Greek government-debt crisis. It reopened on 3 August 2015 and lost more than 16% in the day's trading with certain bank stocks plummeting 30%, the daily change limit. On 23 August 2023, the company formed EuroCTP as a joint venture with 13 other bourses, in an effort to provide a consolidated tape for the European Union, as part of the Capital Markets Union proposed by the European Commission. On 1 July 2025, Euronext announced that it submitted a takeover offer in order to acquire Athens Stock Exchange. Discussions focused on a potential all-share deal valued at approximately $470 million. On 19 November 2025, Euronext announced that its voluntary exchange offer for all ATHEX shares was successful, as it obtained a controlling stake of 74,3%, and therefore completed the acquisition of Athens Stock Exchange. ==Location==

Until 2007, the exchange was located on Sofocleous Street, in the central business district of Athens. For this reason the Exchange and Sofocleous St became synonymous with each other. It is now located in its new headquarters at 110 Athinon Street, also called Kavalas Street. The exchange's trading hours are from 10:00am to 05:20pm Monday to Friday, and is closed on Saturdays, Sundays and holidays declared by the Exchange in advance. ==Operations==

ATHEX has over 30 indices. The six main indices are: Composite Index (GD), FTSE/Athex Large Cap (FTSE, also known as FTSE 25), FTSE/Athex Mid Cap Index (FTSEM), FTSE/Athex Market Index (FTSEA), FTSE/ATHEX Global Traders Index Plus (FTSEGTI) and FTSE/ATHEX Factor-Weighted Index (FTSEMSFW). The Athens Composite index started trading in 1980, As of 2 February 2021 on the Athens Exchange 166 companies are represented with 172 stocks. (from 157 companies) and the Alternative Market has 9 stocks (9 companies). Categories of stocks The stocks of the Securities Market are divided into three categories: • Main Market (126 stocks from 124 companies) • Surveillance (25 stocks from 22 companies) • Under Suspension (12 stocks from 11 companies) For a list of the companies see: List of companies listed on the Athens Exchange. Composite Index The Athens Exchange uses the symbol GD for the Composite Index. The Bloomberg code for this index is ASE; the Reuters code is .ATG. Annual returns The following table shows the annual development of the Athens Composite Index since 1987. == Management ==

Board of Directors oversees the activity of ATHEX. The Board consists of 13 members who are elected by the General Meeting of Shareholders for a 4-year term. The current Board was elected at the 20th general Meeting of Shareholders conducted on 31 May 2021. The chairman of the Board is George Handjinicolaou. ==Notes==