A lot of you guys trading listed do nothing more than place orders outside the market hoping/waiting for a specialist to print away and be forced to fill you with him. Then you're the first guys lifting an ECN on the inside to sneak out. What you do for a living is profitable and legal. But from an ethical pov it is questionable and is no more akin to speculating than calling a pawn shop a banker. Many of the listed traders/scalpers are really co-conspirators in the NYSE's monopolistic, anti competative, and dare I say anti capatalistic business model.