2 Eurex names Franke successor Eurex, the Swiss-German derivatives exchange, 1 Rudolph Ferscha to take over from Joerg Franke as Chief executive at the end of the year. The appointment 2 yesterday by Deutsche Borse, which 3 50 per cent of Eurex, and 4 as a move by the exchange to develop a stronger international presence. Mr Franke, who 5 his resignation from Eurex the week before, 6 to the Deutsche Borse board a few days ago.