Following the announcement that CME Group is to buy OTC platform operator and post trade services provider NEX Group for $5.4 billion, Galen Stops, raises five important questions that both the parties involved in the deal, and the wider FX market, probably need to consider. Is it good value? Could there be more deals for OTC platforms? Do OTC platforms need scale to survive? Will this deal lead to more futures trading? And does this deal represent competition for LCH?