Jack reports directly to Raffaele Jerusalmi, Director of Capital Markets, London Stock Exchange Group, while Ciro Pietroluongo has been appointed as General Manager.

Furthermore, Pasquale Cataldi, Head of European Government bond and swaps trading, Deutsche Bank, joined the Board, replacing Stephen Wolff who resigned.

Jack has over 20 years of experience in financial markets, most recently as COO of Superderivatives and CEO of ICAP Electronic Broking, which included responsibility for Brokertec and EBS. Prior to that, he was CEO of EBS, the spot FX electronic broking platform sold to ICAP in 2006. Jack previously worked in a variety of roles at Citigroup in the UK and Australia, and at Midland Montague in Sydney where he started as a foreign exchange dealer in 1982.

Jack has also served on the Bank of England and US Federal Reserve Foreign Exchange committees between 1999 and 2007.

Xavier Rolet, Chief Executive of London Stock Exchange Group, said: "I am delighted Jack is the new CEO of MTS Group. With his wealth of relevant experience, I believe Jack will make a significant contribution to our business. I look forward to working with him."

Jack Jeffery said: "In the current environment, with record levels of government debt being issued across the Eurozone there is an increased emphasis on ensuring open and transparent markets. As the only pan-European electronic order book, MTS is well placed to build on the reputation it has established in the marketplace. I look forward to working with MTS staff, customers, regulators and treasuries during this exciting period, as we continue to leverage our relationship with London Stock Exchange Group, growing and developing our markets. "

Jack is 50 years old and is married with four children.