ISS Recommends Shareholders Vote Against Shareholder Proposal At Euronext’s Annual General Meeting on May 23, 2006

Euronext is pleased to announce that Institutional Shareholder Services (ISS), the largest independent proxy research firm, recommends that shareholders vote against a shareholder proposal that asserts the principle that a merger between Euronext and Deutsche Boerse is in the best interests of Euronext’s shareholders.

In its analysis, ISS stated “ISS is in favor of the board of Euronext exploring all possibilities for strategic alliances and agrees that, at this point in time, there is not yet enough information regarding implications on strategy, finances, and corporate governance to allow an informed vote on the merits of a potential merger/acquisition.”

ISS also concluded “We note that leaving several possibilities open for exploration can be in the best interest for shareholders.”