Passage: Amsterdam is the financial and business capital of the Netherlands. The Amsterdam Stock Exchange (AEX), part of Euronext, is the world's oldest stock exchange and is one of Europe's largest bourses. It is situated near Dam Square in the city's centre. As a founding member of the euro, the Netherlands replaced (for accounting purposes) its former currency, the "gulden" (guilder), on 1 January 1999, along with 15 other adopters of the euro. Actual euro coins and banknotes followed on 1 January 2002. One euro was equivalent to 2.20371 Dutch guilders. In the Caribbean Netherlands, the United States dollar is used instead of the euro.

Question: What does AEX stand for?
Amsterdam Stock Exchange