It is clear that Simmons, a tall, relaxed figure with an elegant drawl, has his eyes well trained on the developments across the Atlantic, and wants his next European venture to parallel the Nasdaq approach. This he defines as an 'open dealer platform' and 'a horizontal business as opposed to vertical business, where individuals who have orders can execute them in one place and clear them in another, and sell them in a third if they want to. This, I think, is the secret of the low cost nature of US markets.'