ISS Recommends Shareholders Vote In Favour Of NYSE Euronext Merger Proposal And All Other Proposals At Euronext’s Extraordinary General Meeting On December 19, 2006

Euronext is pleased to announce that Institutional Shareholder Services (ISS), the largest independent proxy research firm, recommends that shareholders vote in favour of all the proposals included in the agenda at the Extraordinary General Meeting to be held on December 19, 2006.

In its analysis, with regard to the proposal to approve the combination agreement between NYSE Group, Inc. and Euronext N.V., ISS stated: “based on the strategic rationale presented by the company and a very positive market reaction, we recommend that shareholders vote for this merger proposal.”