Nasdaq could submit another bid for the London Stock Exchange as early as the start of next month, but would need to pay at least $3.7bn (€2.9bn) for the three-quarters of the UK exchange it does not already own.

October 2 would be the first day Nasdaq can renew its bid, a full six months it submitted its initial offer, which the LSE rejected as failing to recognise its true value. The March bid was made at 950 pence a share or $4.2bn.