Exchanges are locked in a battle for global trading domination this year. The New York Stock Exchange bought EuroNext, establishing the first transatlantic exchange.

Meanwhile, NASDAQ paired up with Borse Dubai to buy Nordic exchange OMX. And the Chicago Merc took over the Chicago Board of Trade to become the world's largest futures exchange.

What's driving it? The developing financial world, a surge in computer driven trading and the boom in derivatives which is currently expanding at a 20% every year.