Is the fun about to come to an end for those trying to optimise (and capitalise on) their interaction with one of the most heavily traded equities in Europe? It has to be one of our favourite stocks for the complexity it presents for equity exposure to a single organisation. Two different lines of stock, both traded heavily on two primary exchanges. Competition aplenty from the UK and European MTFs and the full spectrum of market mechanisms accessible to trade; lit, dark, auctions, off-book (on-exchange), OTC….the list goes on. It presents a challenge for many investors, banks and brokers and a long standing opportunity for the canny arbitrageur.