CFDs do not represent actual volume. If you want to trade futures with real volume, I recommend trading futures with level 2 data. CME will cost you around $30 per month and includes all currencies such as 6E (EURUSD) as well as fixed income, ES, and so on. EUREX costs 20E per month and includes FDAX, Bunds, Bobl, and other products. I hope this helps.