Interactive Brokers (IB) has put in a bid to become the next equity partner at Philadelphia Stock Exchange (PHLX), trumping other stakes from several Wall Street firms (see FO Week Vol 10 No 33). In a letter obtained by FO Week, IB's chairman, Thomas Peterffy, said his firm is prepared to pay $20m for a 20% stake in the exchange.
However, PHLX insiders have told FO Week that IB was...