A CFD http://www.contracts-for-difference.com/what-is-a-cfd.html is an agreement to exchange the difference between the entry price and exit price of an underlying asset. For instance, if you buy a contracts for difference at $14 and sell at $16 then you will receive the $2 difference. If you buy a CFD at $10 and sell at $8 then you pay the $2 difference
