The exchange said that it was keen to close the takeover bid period and would return £250 million to shareholders as soon as the bid period was over. The LSE has been in an offer period since Deutsche Börse's bid in December 2004.
EDX was the LSE's bid to enter the lucrative derivatives business after the failure of its bid for Liffe. However, it has been outperformed by rivals such as Eurex. In its most recent results, trading volume on EDX had risen only 6% year-on-year.