The past few months have been significant for Austrian exchange Wiener Börses attempts to position itself as the prime conduit for portfolio investment in central and eastern Europe. In a notable run it has managed to secure majority control of three exchanges in the region. Most recently, it signed an agreement in November to acquire a 92.4% stake in the Prague Stock Exchange, one of the largest in central and eastern Europe, with a market capitalization of about 40 billion. ...