Amsterdam, May 12 2005. Euronext N.V. reports today its 1st quarter revenues of 222.6mn, down 6% compared to Q1, 2004 which was a record quarter. During the first quarter 2005 our derivatives trading activity suffered from the lack of volatility of the short term part of the interest rates curve as well as equity options, explaining the decrease in revenues compared to 2004 where volumes were at an all time high.