Tullett Prebon breaks off dealTullett Prebon, the London-based interdealer broker, has broken off talks with a potential buyer, the New York Times reports. Tullett, one of the largest credit derivatives brokers, has been in preliminary talks with an unnamed buyer since March.Tullett released a statement saying: “It has not been possible to reach agreement on the terms of any offer. The third party has confirmed that it does not intend to pursue a possible offer.” The firm’s share price slumped by 13% to 317p on the news, giving the firm a market cap of £682m ($1bn).The New York Times named private equity group CVC Capital Partners and Bank of China among the potential suitors, as well as the more leftfield options of the London Stock Exchange and Deutsche Börse.It has been noted that this is the third time in five years that Terry Smith’s outfit has announced secretive takeover talks....