Euronext today said there was "nothing new" in Deutsche Börse's revised offer to merge with its European rival. The comment came as the prime minister of the state of Hesse, where the German exchange is based, said he no longer felt a European tie-up would benefit Frankfurt's financial market.

Deutsche Börse's new deal, designed to thwart a merger of equals worth about $10.2bn (€8.1bn) between Euronext and the New York Stock Exchange, proposes combining the European exchange operators under a newly created Dutch entity called NewCo, based in Amsterdam.