Has anyone developed a automated trading program in the FX market and/or the currency futures market? There seems to be a lot of that going on, since the prices of the euro and swiss all move simultaneously. Are there any traders out that spread between the euro and swiss futures and/or cash market? I'm working on an automated trading strategy in these markets, and would like some advice if this is too difficult or if the markets are just too efficient. Also, does anyone know how the automated trading systems on the currency futures and forex markets work? they seem to be everywhere.