Growth in derivatives revenues at Euronext, the European exchange operating in Paris, Amsterdam, Lisbon and Belgium, has stalled after months of driving up income levels, following the traditional slowdown in market activity in July and August.

Although trading volumes in derivatives grew 1.2% in the third quarter thanks to a rebound in trading of French equity options, the division posted a 2.4% decrease in revenues to €76.3m. The exchange said the decrease was due mainly to negative exchange rates, which cost it €5m. However, derivatives still accounted for almost a third of the exchange's revenues.